<PAGE>
 
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                 ------------
                                    
                                 FORM 10/A     
                                
                             (AMENDMENT NO. 1)     
                  GENERAL FORM FOR REGISTRATION OF SECURITIES
                     PURSUANT TO SECTION 12(b) OR 12(g) OF
                      THE SECURITIES EXCHANGE ACT OF 1934
 
                            Cell Therapeutics, Inc.
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)
 
                 Washington                                 91-1533912
- --------------------------------------------        ---------------------------
  (State of incorporation or organization)               (I.R.S. Employer
                                                        Identification No.)
 
    201 Elliott Avenue West, Suite 400,                        98119
            Seattle, Washington                     ---------------------------
- --------------------------------------------                (Zip Code)
  (Address of principal executive offices)
 
Registrant's telephone number, including area code        (206) 282-7100
                                     ------------------------------------------
 
Securities to be registered pursuant to Section 12(b) of the Act:
 
                                      None
 
Securities to be registered pursuant to Section 12(g) of the Act:
 
                           Common Stock, no par value
                                (Title of Class)
 

<PAGE>
 
          
  This Registration Statement contains forward-looking statements which
involve risks and uncertainties. When used in this Registration Statement, the
words "believes," "anticipates," "expects" and similar expressions are
intended to identify such forward-looking statements. The Company's actual
results may differ significantly from the results discussed in the forward-
looking statements. Factors that might cause such a difference include, but
are not limited to, those discussed in "Item 1. -- Business -- Risk Factors."
Readers are cautioned not to place undue reliance on these forward-looking
statements, which speak only as of the date hereof. The Company undertakes no
obligation to publicly release the results of any revisions to these forward-
looking statements which may be made to reflect events or circumstances after
the date hereof or to reflect the occurrence of unanticipated events.     
 
ITEM 1.BUSINESS.
       
GENERAL
 
  Cell Therapeutics, Inc. ("CTI" or the "Company") focuses on the discovery,
development and commercialization of small molecule drugs that modulate the
production of cell membrane lipids called phosphatidic acids ("PAs") for the
treatment of cancer and inflammatory and immune diseases. Company scientists
have demonstrated that certain PAs constitute part of cellular stress
activated pathways involved in many such disease states and conditions. Unlike
existing therapeutic approaches which generally affect normal cellular
functions, the Company believes that drugs based on its proprietary technology
may be able to selectively regulate abnormal cellular responses. Such
selectivity could result in the development of more disease-specific
therapies, with safety and efficacy profiles superior to those of existing
therapeutics.
   
  The Company's principal business strategy is to focus its development
activities on therapeutic areas that represent large market opportunities not
adequately served by existing therapeutics. The Company has advanced the
following products into clinical trials:     
     
    Lisofylline for Oncology. Lisofylline is a synthetic small molecule
  drug which is being developed primarily as an adjunct to current cancer
  treatment modalities to reduce the toxicities associated with radiation
  and chemotherapy. The Company has completed one Phase II/III trial and
  has one Phase II/III trial ongoing. The completed phase II/III trial,
  which included 60 patients, investigated the effect of two doses of
  Lisofylline on the rate of blood cell recovery, transfusion
  requirements, and the incidence of infection, toxicity, and mortality
  in cancer patients undergoing high dose radiation and/or chemotherapy
  followed by bone marrow transplantation ("BMT"). The results of the
  completed Phase II/III trial indicated that Lisofylline statistically
  reduced the duration of absolute neutropenia (number of days with fewer
  than 100 infection-fighting white blood cells ("WBCs") per microliter
  of blood), the incidence of serious and fatal infection and mortality.
  The Company is planning to commence a pivotal Phase III trial for these
  indications by the end of 1996. The Company expects that the principal
  endpoints will include the incidence of serious and fatal infection and
  mortality.Based on its clinical trial results, the Company is also
  planning to commence a Phase II/III trial for mucositis (acute toxicity
  to the cells lining the mouth, stomach and intestinal tract) by the end
  of 1996.     
     
    CT-2584 for Oncology. CT-2584 is the Company's novel small molecule
  drug which in preclinical testing killed a wide variety of tumor cells,
  including chemotherapy-resistant tumor cells, with no bone marrow or
  gastrointestinal toxicity. The Company initiated a Phase I/Ib trial in
  the United Kingdom in November 1995 and in the United States in June
  1996 for patients with advanced cancers, including chemotherapy-
  resistant colon, prostate and ovarian cancers.     
     
    Lisofylline for Inflammatory Disease. The Company believes that
  Lisofylline may also be effective in the prevention and treatment of
  acute lung injury ("ALI"), systemic inflammation and multi-organ
  failure ("MOF") among patients who have experienced traumatic injuries.
  The Company has completed one Phase II/III trial and one pilot Phase II
  trial. The Company is planning to commence a pivotal Phase III trial by
  the second quarter of 1997 to determine the effect of Lisofylline on
  ALI, MOF and mortality among patients who have experienced traumatic
  injuries.     
 
 
                                       2

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  In the United States, the Company has seven issued patents and 81 pending
patent applications, of which nine have been allowed, covering a variety of
new chemical entities, pharmaceutical compositions, synthetic processes,
methods of use, research tools, and diagnostics. CTI intends to file
additional patent applications with respect to improvements in its core
technology and to specific products and processes that it develops.     
   
  Cell Therapeutics, Inc. was incorporated in Washington in September 1991.
The Company has not received any revenue from the sale of products to date and
does not expect to receive revenues from the sale of products for at least the
next several years. The Company's executive offices are located at 201 Elliott
Avenue West, Seattle, Washington 98119, and its telephone number is (206) 282-
7100.     
 
RISK FACTORS
   
  Dependence on Core Technology; Technological Changes and Uncertainty. The
Company currently relies exclusively upon its lipid-based small molecule
technology for the discovery, development and commercialization of drugs for
the treatment of cancer and inflammatory and immune diseases. The Company's
drug candidates under development, including Lisofylline and CT-2584, modulate
the production of certain cell membrane lipids called phosphatidic acids
("PAs") or the proteins they may regulate. The Company believes that such
species of PA are not utilized for normal cellular function, and that the
Company's drug candidates will not interfere with normal cellular processes.
There can be no assurance that the Company's therapeutic approaches or drug
candidates will be proven effective against diseases, nor can there be any
assurance that the species of PA or stress activated pathways targeted by the
Company's drug candidates do not serve a currently unidentified purpose which
might be adversely affected by the mechanism of action of the Company's drug
candidates. No assurance can be given that unforeseen problems will not
develop with the Company's technologies or applications, or that commercially
feasible products will ultimately be developed by CTI. There can be no
assurance that research and discoveries by others will not render some or all
of CTI's programs or products noncompetitive or obsolete or that the Company
will be able to keep pace with technological developments or other market
factors. Technological changes or medical advancements could diminish or
eliminate the commercial viability of the Company's focus on cell membrane
lipids in regulating cellular processes. The failure to commercialize such
products would have a material adverse effect on the Company. See "--
 Competition."     
 
  No Assurance of Successful Product Development. CTI has no products
commercially available for sale and does not expect to have any products
commercially available for sale for at least the next several years, if ever.
The time frame for achievement of market success for any potential product is
long and uncertain. Lisofylline and CT-2584, CTI's lead drug candidates, are
currently in clinical trials for certain applications. However, the results
obtained to date in preclinical and clinical studies of Lisofylline and in
preclinical studies of CT-2584 are not necessarily indicative of results that
will be obtained during future clinical testing. In recent years, many
biotechnology and drug discovery companies have found that early preclinical
and clinical results are not reproduced in subsequent clinical trials. The
Company's research and development programs for products other than
Lisofylline and CT-2584 are at an early stage. Preclinical in vitro and animal
studies are not necessarily indicative of results that may be obtained during
human clinical testing. Many potential therapeutic products indicate positive
in vitro results which are not subsequently reproduced in humans. Any
additional product candidates will require significant research, development,
preclinical and clinical testing, regulatory approval and commitments of
resources prior to commercialization. There can be no assurance that the
Company's research will lead to the discovery of additional product candidates
or that Lisofylline, CT-2584 or any other products will be successfully
developed, prove to be safe and efficacious in clinical trials, meet
applicable regulatory standards, be capable of being produced in commercial
quantities at acceptable costs or be successfully or profitably marketed. If
clinical testing of Lisofylline is not successfully completed, or if
Lisofylline does not meet applicable regulatory requirements or is not
successfully marketed, the Company may not have the financial resources to
continue research and development activities of other product candidates.
There can be no assurance as to the extent to which any products developed by
CTI will be able to penetrate the potential market for a particular therapy or
indication or gain market acceptance among health care providers, third-party
payors or patients.
 
                                       3

<PAGE>
 
  History and Continuation of Losses; Early Stage of Development. CTI
commenced operations on February 1, 1992, and has not received any revenue
from the sale of products to date, nor does it expect to receive revenues from
the sale of products for at least the next several years. CTI has incurred net
losses since inception and had an accumulated deficit of approximately $62.3
million as of March 31, 1996. These losses are primarily attributable to
research and development efforts, including preclinical studies and clinical
trials.
   
  The Company expects to continue to incur significant additional operating
losses over the next several years as its research, development and clinical
trial efforts expand. CTI is in the development stage and its operations are
subject to all of the risks inherent in the establishment of a new business
enterprise. The likelihood of the success of CTI must be considered in light
of the problems, expenses and delays frequently encountered in connection with
the development of pharmaceutical products, the utilization of unproven
technology and the competitive environment in which CTI operates. CTI is
working on a number of costly long-term development projects, which involve
experimental and unproven technology, and may ultimately prove unsuccessful.
There can be no assurance that CTI will have sufficient funds or be able to
complete successfully its research and development, obtain regulatory approval
for, or manufacture or market any products in the future. In addition, as a
result of CTI's limited operating history and the fact that it does not
currently have any marketable products, CTI expects to incur substantial
operating losses for a number of years. The amount of net losses and the time
required by the Company to reach profitability are highly uncertain. There can
be no assurance that it will be able to develop additional revenue sources or
that its operations will become profitable. See "Item 2.--Financial
Information--Management's Discussion and Analysis of Financial Condition and
Results of Operations."     
   
  Need for Substantial Additional Funds. CTI will require substantial funds to
conduct its existing and planned preclinical and clinical trials, to establish
manufacturing and marketing capabilities for any products it may develop, and
to continue research and development activities. CTI's current cash and cash
equivalents will not be sufficient to fund CTI's operations through the
commercialization of its first product. The Company expects that its existing
capital resources, together with the interest earned thereon, will enable the
Company to maintain its current and planned operations at least through the
first quarter of 1997. No assurance can be given that changes will not occur
that will consume available capital resources before such time. The Company
will need to raise substantial additional capital to fund its operations
beyond such time. Furthermore, as time progresses, unless additional capital
is obtained, the Company will be forced to narrow the focus of its research
and development programs. See "Item 2.--Financial Information--Management's
Discussion and Analysis of Financial Condition and Results of Operations."
    
  The Company's future capital requirements will depend on, and could increase
as a result of, many factors, including continued scientific progress in its
research and development programs, the magnitude of such programs, the
progress of preclinical and clinical testing, the time and costs involved in
obtaining regulatory approvals, the costs involved in preparing, filing,
prosecuting, maintaining, enforcing and defending patent claims, competing
technological and market developments, the terms of any collaborative
arrangements that the Company may enter into, the ability of the Company to
establish research, development and commercialization arrangements pertaining
to the Company's products, the cost of establishing manufacturing facilities,
the cost of commercialization activities, and the demand for the Company's
products if and when approved.
   
  The Company intends to raise additional funds through additional equity or
debt financings, research and development financings, collaborative
relationships, or otherwise. Because of these long-term capital requirements,
CTI may seek to access the public or private equity markets whenever
conditions are favorable, even if it does not have an immediate need for
additional capital at that time. There can be no assurance that any such
additional funding will be available to CTI, or, if available, that it will be
on acceptable terms. If additional funds are raised by issuing equity
securities, further dilution to stockholders may result. If adequate funds are
not available, CTI may be required to delay, reduce the scope of, or eliminate
one or more of its research, development and clinical activities or to seek to
obtain funds through arrangements with collaborative partners or others that
may require CTI to relinquish rights to certain of its technologies, product
candidates or products that the Company would otherwise seek to develop or
commercialize itself. See "Item 2.--Financial Information--Management's
Discussion and Analysis of Financial Condition and Results of Operations--
Liquidity and Capital Resources."     
 
                                       4

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  No Assurance of FDA Approval; Comprehensive Government Regulation. The FDA
and comparable agencies in foreign countries impose substantial requirements
through lengthy and detailed laboratory and clinical testing procedures, and
other costly and time-consuming procedures, to determine that such
therapeutics are safe and efficacious prior to the introduction of human
therapeutics. Obtaining approvals to market drugs typically takes several
years or more (with no assurance that such approval will ever be obtained) and
varies substantially based upon the type, complexity and novelty of the drug.
In addition, delays or rejections may be encountered based upon changes in the
policies of regulatory authorities for drug approval during the period of drug
development and regulatory review of each submitted new drug application. The
results obtained in preclinical and early clinical studies are not necessarily
indicative of results that will be obtained during future clinical testing.
There can be no assurance that results obtained to date will continue as
testing and trials progress or that such products will be approved by the FDA
or other regulatory authorities for commercial sale.
 
  In addition to the substantial time commitment required, the regulatory
process, which includes preclinical testing and clinical trials of each
compound to establish its safety and efficacy, requires the expenditure of
substantial resources. Preclinical studies must be conducted in conformity
with the FDA's good laboratory practices. Clinical trials must meet
requirements for institutional review board oversight and informed consent, as
well as FDA prior review, oversight and good clinical practices. The Company's
experience in conducting clinical trials is limited. Data obtained from
preclinical studies and clinical trials are susceptible to varying
interpretations which could delay, limit or prevent regulatory approval.
Furthermore, studies conducted with alternative designs or alternative patient
populations could produce results which vary from those obtained by the
Company. There can be no assurance that the Company's data or its
interpretation of its data will be accepted by governmental regulators or the
medical community.
 
  Government regulation also affects the manufacture and marketing of
pharmaceutical products. Any future FDA or other governmental approval of
products developed by CTI may entail significant limitations on the indicated
uses for which such products may be marketed. Approved products will be
subject to additional testing and surveillance programs required by the
regulatory agencies. In addition, product approvals may be withdrawn or
limited for noncompliance with regulatory standards or the occurrence of
unforeseen problems following initial marketing. Failure to comply with
applicable regulatory requirements can result in, among other things, fines,
suspensions of approvals, seizures or recalls of products, operating
restrictions or criminal proceedings. In the event that CTI were to
manufacture therapeutic products on a pilot or commercial scale, CTI would be
required to adhere to applicable standards for manufacturing practices, engage
in extensive record keeping and reporting, and submit its manufacturing
facilities to periodic inspections by state and federal agencies, including
the FDA and comparable agencies in other countries.
   
  The effect of government regulation may be to considerably delay or prevent
the marketing of any product that CTI may develop and/or to impose costly
procedures upon CTI's activities, the result of which may be to furnish an
advantage to its competitors. There can be no assurance that regulatory
approval for any products developed by CTI will be granted on a timely basis
or at all. Any such delay in obtaining or failure to obtain such approvals
would adversely affect CTI's ability to market the proposed products and earn
product revenue. CTI is unable to predict the extent and impact of regulation
resulting from future federal, state or local legislation or administrative
actions, or whether such government regulation may have a material adverse
effect on CTI. See "--Government Regulation."     
   
  Outside the United States, the Company's ability to market a product is
contingent upon receiving marketing authorizations from the appropriate
regulatory authorities. The requirements governing the conduct of clinical
trials, marketing authorization, pricing and reimbursement vary widely from
country to country. At present, foreign marketing authorizations are applied
for at a national level, although within the European Community ("EC") certain
registration procedures are available to companies wishing to market a product
in more than one EC member state. If the regulatory authority is satisfied
that adequate evidence of safety, quality and efficacy has been presented, a
marketing authorization will be granted. This foreign regulatory approval
process includes all of the risks associated with FDA approval set forth
above. See "--Government Regulation."     
 
                                       5

<PAGE>
 
   
  Dependence on Others; Collaborators. The successful commercialization of the
Company's products in certain markets will be dependent, among other things,
on the establishment of commercial arrangements with others in such markets.
Such arrangements could include the granting of marketing, manufacturing or
other rights to third parties in exchange for royalties, milestone development
payments or other payments. There can be no assurance that any such
arrangements will be established. If the Company is not able to establish such
arrangements, it could encounter delays in introducing its products into
certain markets or find that the development, manufacture or sale of its
products in such markets is adversely affected. While the Company believes
that parties to any such arrangements will have an economic motivation to
succeed in performing their contractual responsibilities, the amount and
timing of resources they devote to these activities will not be within the
Company's control. There can be no assurance that the Company will enter into
any such arrangements on acceptable terms or that any such parties will
perform their obligations as expected or that any revenue will be derived from
such arrangements. See "--Collaborations."     
   
  In February 1996 the Company entered into an agreement with Schering AG
("Schering") pursuant to which, among other things, the Company and Schering
would collaborate in the funding, research, development and commercialization
of Lisofylline and CT-2584 on the terms and conditions specified therein. Upon
execution of the agreement, Schering paid the Company a $3,000,000 non-
refundable signing fee. The remainder of the agreement was contingent upon
Schering finding the clinical trial results and related data from the
Company's Phase II/III BMT trial (the "Trial Data") acceptable within thirty
days after its receipt. The Company furnished Schering with the Trial Data in
late February 1996. On April 2, 1996, after a mutual extension of the thirty-
day review period, Schering informed the Company that it did not wish to
activate the agreement. Although the agreement did not require Schering to
specify in detail its reasons for not activating the agreement, Schering
informed the Company that its decision was based on, among other factors, (i)
its view that one of the endpoints of the Phase II/III BMT trial, white blood
cell recovery, was not met and (ii) its view that the Trial Data regarding
mortality rate and incidence of serious and fatal infection were difficult to
interpret and that, as a result, Schering could not determine that the data
was meaningful. See "--Development Program--Oncology" and "--Collaborations."
       
  As a result of Schering's decision not to activate the agreement and
following the Company's review of the Trial Data, the Company revised its
planned expenditures for 1996 and 1997, resulting in a reduction of
approximately $11.4 million. These reductions consisted primarily of the
elimination of expenses which would have been incurred at Schering's request
in connection with seeking regulatory approval for Lisofylline and CT-2584 in
Europe and Japan, and certain planned research activities that would have been
sponsored by Schering under the Agreement. These reduced expenditures also
reflect the Company's decision to delete a 2 mg/kg (low dose) component from
the Company's planned pivotal Phase III trial for Lisofylline following the
Company's review of the Trial Data.     
   
  The Company is presently engaged in discussions with potential collaborators
regarding the development, manufacturing and commercialization of Lisofylline,
CT-2584 and other products under development, and expects to engage in similar
discussions with potential collaborators from time to time in the future.
Although there can be no assurance that the Company will enter into any such
collaborative arrangement on acceptable terms, the Company believes that
Schering's decision not to activate the agreement will not have a material
adverse impact on the Company's ability to enter into any such collaborative
arrangement on favorable terms.     
 
  Substantial Competition. CTI faces substantial competition from a variety of
sources, both direct and indirect. CTI faces direct competition from many
companies focusing on areas such as cell signal transduction, surface receptor
technology, transcription factors and gene therapies. There are many
companies, both public and private, including well-known pharmaceutical
companies, chemical companies and specialized genetic engineering companies,
engaged more generally in developing synthetic pharmaceutical and
biotechnological products for the same therapeutic applications as those which
are the subject of the Company's research and development efforts. In some
instances, such products have already entered clinical trials or received
approval from the FDA. In addition, many of these competitors have
significantly greater experience than CTI in undertaking preclinical testing
and clinical trials of new pharmaceutical products and obtaining FDA and other
 
                                       6

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regulatory approvals. The Company will also be competing with companies that
have substantially greater capital, research and development, manufacturing,
marketing and sales capabilities. Moreover, certain academic institutions,
governmental agencies and other research organizations are conducting research
in areas in which the Company is working. These institutions are becoming
increasingly aware of the commercial value of their findings and are becoming
more active in seeking patent protection and licensing arrangements to collect
royalties for the use of technology that they have developed. These
institutions may also market competitive commercial products on their own or
through joint ventures and will compete with the Company in recruiting highly
qualified scientific personnel. Other companies may succeed in developing
products that are more effective or less costly than any that may be developed
by CTI and may also prove to be more successful than CTI at marketing such
products. Competition may increase further as a result of the potential
advances in the commercial applicability of genetic engineering technologies
and organic chemistry. See "--Competition."     
 
  Ability to Protect Intellectual Property. CTI's success will depend in part
on its ability to obtain patent protection for its products and technologies
in the United States and other countries, effectively preserve its trade
secrets, enforce its rights against third parties which may infringe on its
technology and operate without infringing on the proprietary rights of third
parties. The patent positions of biotechnology and pharmaceutical companies
can be highly uncertain and involve complex legal and factual questions. CTI
intends to file applications as appropriate for patents covering both its
products and processes. There can be no assurance that any patents will issue
from any present or future applications or, if patents do issue, that such
patents will be issued on a timely basis or that claims allowed on issued
patents will be sufficient to protect the Company's technology. In addition,
there can be no assurance that the patents issued to CTI will not be
challenged, invalidated or circumvented or that the rights granted thereunder
will provide proprietary protection or commercial advantage to the Company.
With respect to such issued U.S. patents or any patents that may issue in the
future, there can be no assurance that they will effectively protect the
technology involved, foreclose the development of competitive products by
others or otherwise be commercially valuable.
   
  The commercial success of the Company will also depend in part on the
Company's neither infringing the patents or proprietary rights of third
parties nor breaching any technological licenses which relate to the Company's
technologies and potential products. In general, the development of
therapeutic products is intensely competitive and many pharmaceutical
companies, biotechnology companies, universities and research institutions
have filed and will continue to file patent applications and receive patents
in this field. If patents are issued to other entities that contain
competitive or conflicting claims with respect to technology pursued by CTI
and such claims are ultimately determined to be valid, no assurance can be
given that CTI will be able to obtain licenses to these patents at a
reasonable cost or develop or obtain alternative technology or compounds. In
such case, the Company could be precluded from using technology that is the
subject matter of such patents, which could have a material adverse effect on
the Company. In order to enforce any patents issued to the Company or
determine the scope and validity of other parties' proprietary rights, the
Company may have to engage in litigation, which would result in substantial
cost to, and diversion of efforts by, the Company. If the outcome of any such
litigation is adverse to the Company, the Company's business could be
adversely affected. In addition, if the Company elects or is required to
participate in interference proceedings declared by the U.S. Patent and
Trademark Office, substantial cost to the Company could result. See "--Patents
and Proprietary Rights."     
 
  The Company is aware of certain patents belonging to third parties that
could be interpreted broadly to compromise the Company's freedom to make and
sell Lisofylline in the United States for use in preventing lung injury
following traumatic injury or sepsis. The Company believes, upon the advice of
patent counsel, that the manufacture, use and sale of Lisofylline does not
infringe any valid claim of such third party patents. See "Legal Matters." If
such patents were to restrict the use of Lisofylline for such indications, the
Company may be required to obtain a license from such parties. There can be no
assurance that any such license would be available to the Company upon
reasonably acceptable terms, if at all. If the Company were so required to
obtain a license from such parties, and if the Company were unable to obtain
such a license on reasonably acceptable terms, the Company would be materially
and adversely affected. The Company could also face significant costs
associated with any litigation relating to such patents.
 
                                       7

<PAGE>
 
  In order to protect its proprietary technology and processes, CTI also
relies on confidentiality and material transfer agreements with its corporate
partners, employees, consultants, outside scientific collaborators and
sponsored researchers and other advisors. There can be no assurance that these
agreements will not be breached, that the Company will have adequate remedies
for breach or that the Company's trade secrets will not otherwise become known
or independently discovered by competitors.
   
  Reliance on Third Party Manufacturers; Manufacture of Products in Commercial
Quantities. The manufacturing of sufficient quantities of new drugs is a time
consuming, complex and unpredictable process. The Company currently has no
facilities for the manufacture of clinical trial or commercial quantities of
any of its products. The Company currently relies on third parties to
manufacture compounds for preclinical testing and clinical trials. No
assurance can be given that the Company will be able to make the transition to
commercial production. CTI may need to develop additional manufacturing
resources, or may seek to enter into collaborative arrangements with other
parties which have established manufacturing capabilities or may elect to have
third parties manufacture its products on a contract basis. All manufacturing
facilities must comply with applicable regulations of the FDA. The Company has
established a quality control and quality assurance program, including a set
of standard operating procedures and specifications, designed to ensure that
the Company's products are manufactured in accordance with current Good
Manufacturing Practices ("cGMP") and other applicable domestic and foreign
regulations. However, the Company is dependent upon contract manufacturers to
comply with such procedures and regulations. There can be no assurance that
these manufacturers will meet the Company's requirements for quality, quantity
or timeliness. See "--Manufacturing."     
   
  Absence of Sales and Marketing Organization. The Company has no experience
in sales, marketing or distribution. To directly market any of its potential
products, the Company must obtain access to marketing and sales forces with
technical expertise and with supporting distribution capability. If the
Company develops any products with commercial potential, CTI may need to
develop marketing and additional sales resources, or may seek to enter into
collaborative arrangements with other parties which have established marketing
and sales capabilities or may choose to pursue the commercialization of such
products on its own. There can be no assurance that the Company or, to the
extent the Company enters into any commercialization arrangements with third
parties, such third parties, will establish adequate sales and distribution
capabilities or be successful in gaining market acceptance for products. See
"--Marketing."     
   
  Attraction and Retention of Key Employees and Consultants. The Company is
highly dependent on the principal members of its scientific and management
staff, the loss of whose services might impede the achievement of research and
development objectives. Recruiting and retaining qualified scientific
personnel to perform research and development work are critical to CTI's
success. Although CTI believes it will be successful in attracting and
retaining skilled and experienced scientific and technical personnel, there
can be no assurance that CTI will be able to attract and retain such personnel
on acceptable terms. In addition, if CTI reaches the point where its
activities require additional expertise in clinical testing, in obtaining
regulatory approvals, and in production and marketing, there will be increased
demands on CTI's resources and infrastructure. The inability to obtain
additional qualified personnel could materially and adversely affect prospects
for CTI's success. There is intense competition for qualified scientists and
managerial personnel from numerous pharmaceutical and biotechnology companies,
as well as academia, government organizations, research institutions and other
entities. There can be no assurance that CTI will be able to attract and
retain the qualified personnel necessary for the development of its business.
Loss of the services of or failure to recruit key managerial scientific and
technical personnel could have a material adverse effect on CTI's research and
product development programs. CTI maintains a $3 million key man life
insurance policy for Dr. James A. Bianco, the principal founder of the Company
and its President and Chief Executive Officer. In addition, CTI relies on
consultants and advisors, including its scientific and clinical advisors, to
assist the Company in formulating its research and development strategy. All
of CTI's consultants and advisors are employed by employers other than the
Company, or are self-employed, and have commitments to or consulting or
advisory contracts with other entities that may limit their availability to
the Company. See "--Human Resources" and "Item 5.--Directors and Executive
Officers."     
   
  Product Liability; Insurance. CTI's business exposes it to potential product
liability risks which are inherent in the testing, manufacturing and marketing
of human pharmaceutical products. Although the Company
    
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is insured against such risks up to a $20 million annual aggregate limit in
connection with human clinical trials, there can be no assurance that the
Company's present product liability insurance coverage is adequate or that the
Company will be able to maintain such insurance on acceptable terms. The
Company has no products commercially available for sale and has not procured
product liability insurance covering claims in connection with commercially
marketed products. There can be no assurance that the Company will be able to
obtain comparable insurance on commercially reasonable terms if and when it
commences the commercial marketing of any products or that such insurance will
provide adequate coverage against potential liabilities. A successful product
liability claim in excess of the Company's insurance coverage could have a
material adverse effect on the Company and may prevent the Company from
obtaining adequate product liability insurance in the future on commercially
reasonably terms.     
 
  Uncertainty of Pharmaceutical Pricing and Reimbursement. Sales of CTI's
proposed products will be dependent in part on the availability and extent of
reimbursement for the cost of such products and related treatments from third-
party health care payors, such as government and private insurance plans.
Significant uncertainty exists as to the reimbursement status of newly
approved health care products. Government and other third-party payors are
increasingly attempting to contain healthcare costs by limiting both coverage
and the level of reimbursement for new medical products and services and by
refusing, in some cases, to provide any coverage of uses of approved products
for disease indications other than those for which the FDA has granted
marketing approval. If CTI succeeds in bringing any of its proposed products
to the market, there can be no assurance that any such products will be
considered cost-effective or that third-party reimbursement will be available
or will be sufficient to enable CTI to sell its proposed products on a
competitive basis and to maintain price levels sufficient to realize an
appropriate return on its investment in product development. If adequate
coverage and reimbursement levels are not provided by government and other
third-party payors, the market acceptance of CTI's products will be adversely
affected. In addition, legislation and regulations affecting the pricing of
pharmaceuticals may change in ways adverse to CTI before any of the Company's
proposed products are approved for marketing. While CTI cannot predict whether
any such legislative or regulatory proposals will be adopted, the adoption of
such proposals could have a material adverse effect on CTI's business,
financial condition and prospects.
 
  Use of Hazardous Materials. The Company's research and development involves
the controlled use of hazardous materials, chemicals and various radioactive
compounds. Although the Company believes that its safety procedures for
handling and disposing of such materials comply with the standards prescribed
by state and federal regulations, the risk of accidental contamination or
injury from these materials cannot be completely eliminated. In the event of
such accident, the Company could be held liable for any damages that result
and any such liability could exceed the resources of the Company. Although the
Company has insurance covering certain risks associated with the use of
hazardous materials, there can be no assurance that it will be able to
maintain such insurance on acceptable terms or that insurance will provide
adequate coverage against potential environmental liabilities. The Company may
incur substantial costs to comply with environmental regulations if the
Company develops manufacturing capacity.
   
  Concentration of Ownership. Directors and officers of CTI, and their
affiliates, beneficially own 4,829,820 shares of the Company's Common Stock
(including shares of Common Stock issuable upon conversion of CTI's Series A
Convertible Preferred Stock (the "Convertible Preferred Stock") and shares of
Common Stock subject to options or warrants exercisable or convertible within
60 days of June 1, 1996) representing approximately 17.63% of the voting power
of the Company's outstanding securities. Such concentration of ownership may
have the effect of delaying, deferring or preventing a change in control of
the Company. See "Item 4.--Security Ownership of Certain Beneficial Owners and
Management."     
   
  Absence of Public Market; Likely Volatility of Stock Price. There is no
existing public market for the Common Stock, and there can be no assurance as
to the liquidity of any markets that may develop for the Common Stock or, if a
liquid trading market develops, that it will be sustained. In addition, there
can be no assurance as to the ability of holders of Common Stock to sell their
securities, or the price at which holders     
 
                                       9

<PAGE>
 
   
would be able to sell their securities. Future trading prices of the Common
Stock will depend on may factors, including, among other things, the Company's
operating results and the market for similar securities. The Company does not
intend to apply for listing of the Common Stock on any securities exchange or
over-the- counter market prior to a public offering. No assurance can be given
that the Company will ever effect a public offering of its securities, or that
a public market will otherwise develop or be sustained in the future. If a
public market does develop for the Common Stock, investors should be aware
that the market prices for securities of pharmaceutical and biotechnology
companies have been highly volatile and the market from time to time has
experienced significant price and volume fluctuations that are unrelated to
the operating performance of such companies. It is likely that the market
price of the Common Stock will be highly volatile. Factors such as
announcements of technological innovations or new commercial products by the
Company, its collaborative partners or the Company's present or potential
competitors, announcements by the Company of results of preclinical testing
and clinical trials, developments or disputes concerning patent or other
proprietary rights, developments in the Company's relationships with
collaborative partners, adverse litigation, changes in reimbursement policies,
adverse legislation, regulatory decisions, or public concern regarding the
safety, efficacy or other implications of the drugs sought to be developed or
biotechnology in general and economic and other external factors, as well as
period-to-period fluctuations in the Company's operating results and general
market conditions, may have a significant impact on the future price of the
Common Stock.     
   
  Shares Eligible for Future Sale; Registration Rights; Possible Adverse
Effect on Future Market Price. Sales of a substantial number of shares of
Common Stock in the public market could adversely affect the market price of
the shares of Common Stock. Of the 17,300,574 shares of Common Stock
outstanding as of June 1, 1996 (excluding 9,544,700 shares of Common Stock
issuable upon conversion of 95,447.004 shares of the Company's Series A
Convertible Preferred Stock (the "Convertible Preferred Stock")) 9,951,387
shares which have been held by non-affiliates for more than three years are
eligible for immediate sale in the public market without restriction, and an
additional 6,778,977 shares will become eligible for sale beginning
approximately 90 days after the effective date of this Registration Statement,
subject to the provisions of Rules 144 and 701 under the Securities Act of
1933, as amended (the "Securities Act"). The remaining 570,210 shares of
Common Stock (and 9,544,700 shares of Common Stock issuable upon conversion of
the Convertible Preferred Stock) have been held for less than two years and
will become eligible for sale under Rule 144 at various dates thereafter as
the holding period and other requirements of Rule 144 are satisfied. The
Company may in the future elect to file one or more registration statements on
Form S-8 enabling certain option holders to sell shares for which options are
exercisable. The Company is obligated to register approximately 11,505,898
shares of Common Stock (including 9,544,700 shares of Common Stock issuable
upon conversion of 95,447.004 shares of Convertible Preferred Stock) and
warrants to purchase 272,675 shares of Common Stock for sale to the public
beginning 180 days after the closing of an initial public offering of the
Company's Common Stock. See "Item 6.--Executive Compensation--Stock Option
Plans," "Item 9.--Market Price of and Dividends on the Registrant's Common
Equity and Related Stockholder Matters" and " Item 11.--Description of
Registrant's Securities to be Registered--Registration Rights."     
   
  Class of Senior Securities. The Company has 95,447.004 shares of Convertible
Preferred Stock outstanding, which are convertible into an aggregate 9,544,700
shares of Common Stock. Holders of Convertible Preferred Stock are entitled to
significant preferences over holders of Common Stock, including liquidation
and dividend preferences. In any proposed acquisition or liquidation of the
Company, the holders of the Convertible Preferred Stock have certain
significant preferential rights on distribution of the resulting proceeds. In
addition to having the right to vote with the Common Stock on an as-converted
basis, the holders of the Convertible Preferred Stock have the right to vote
as a separate class to elect one additional Director to the Board of
Directors. The affirmative vote of the holders of at least 66.67% of the
outstanding shares of Convertible Preferred Stock is required for the Company
to amend the Company's Articles of Incorporation so as to adversely affect the
rights or preferences of the Convertible Preferred Stock or to authorize or
issue equivalent or senior classes or series of stock. The exercise of these
voting rights could be detrimental to the holders of the Common Stock. See
"Item 11.--Description of Registrant's Securities to be Registered--Preferred
Stock."     
       
                                      10

<PAGE>
 
SCIENTIFIC OVERVIEW
 
  Cell communication occurs through a complex process that commences when
"first messengers" outside the cell, such as hormones, cytokines and growth
factors, recognize and bind to receptors embedded in the cell membrane. The
first messenger initiates a series of chemical reactions within the cell,
known as signal transduction, which result in cellular responses. In the
1970s, scientists discovered that, in response to extracellular binding of
first messengers, certain cell membrane lipids are chemically altered to form
"second messengers" which transduce chemical information from the cell
membrane to the cell nucleus. Certain second messenger systems are essential
for normal day-to-day cellular processes, and are often referred to as
"housekeeping pathways" or "physiologic pathways."
       
  Company scientists have demonstrated that certain cell membrane lipids,
called PAs, are a type of second messenger which the Company believes may be
involved in regulating cell growth and inflammation. Certain PAs appear only
to be produced in response to the presence of cell-damaging stimuli, and
unlike housekeeping pathways, such second messenger systems do not appear to
be utilized for normal cellular processes. The Company believes that cell-
damaging stimuli, such as radiation, chemotherapy or oxidative injury, cause
their toxic side effects by altering certain cell membrane phospholipids,
which lead to the activation of other downstream second messengers, such as
stress activated protein kinase ("SAPK"). Such second messengers carry the
cell damaging signal to the cell nucleus, resulting in the activation of
transcription factors responsible for the production of multiple inflammatory
substances (cytokines). Such second messenger systems are often referred to as
"stress activated pathways."
       
  The Company has demonstrated that there are several species of PA which may
modulate different downstream kinases and transcription factors. The Company
believes that certain species of PA produced in cancer cells appear to
facilitate their unregulated growth and ability to spread (metastasis). The
Company also believes that certain species of PA may be necessary for the
activation of inflammatory cytokines, and that other species of PA may be
necessary for the activation of T-cells, leading to certain immune responses.
Modulation of such species of PA may provide a novel approach to the
development of more effective and less toxic anti-cancer, anti-inflammatory
and immunosuppressive agents. Because such species of PA do not appear to be
utilized by cells for normal cellular function, therapeutics which target such
PAs and the related stress activated pathways are not expected to interfere
with normal cellular function. The Company believes such therapeutics have the
potential to offer greater specificity and safety than pharmaceuticals which
inhibit physiologic second messenger pathways or other activities in a cell
which may be necessary for normal cellular function.
 
BUSINESS STRATEGY
 
  The Company's business strategy is to:
 
  Target large markets which are not adequately served by existing
therapeutics. The Company focuses its drug development activities on cancer
and inflammatory and immune diseases--three therapeutic areas that represent
large market opportunities not adequately served by existing therapeutics. The
Company's two cancer products in clinical trials, Lisofylline and CT-2584,
target the toxic side effects of current cancer treatment modalities and
chemotherapy-resistant cancer cells, respectively. Lisofylline is also in
clinical trials as an agent to treat ALI, systemic inflammation and MOF,
conditions for which no effective therapies currently exist.
 
  Apply proprietary technology to create a unique drug discovery platform for
new product opportunities. The Company's strategy is to leverage its
proprietary technology to identify distinct species of PA and correlate such
PAs with certain disease states and conditions. The Company believes that its
technology provides a unique platform for future drug discoveries.
   
  Maximize product opportunities by entering into collaborative
relationships. The Company believes that by evaluating the potential efficacy
of products through early to mid-stage clinical development, the Company can
best assess the potential value of its products before seeking potential
development and/or commercialization partners. CTI is collaborating with an
affiliate of BioChem Pharma Inc. ("BioChem Pharma") for the     
 
                                      11

<PAGE>
 
development and commercialization of Lisofylline and CT-2584 in Canada, and
may enter into additional collaborative relationships with respect to the
late-stage development, manufacturing and commercialization of other drug
candidates. The Company intends to develop its own sales and marketing
infrastructure in the United States to commercialize its portfolio of oncology
products, either on its own or with collaborators. With respect to the
commercialization of its oncology products outside the United States, and with
respect to the worldwide commercialization of its portfolio of products for
inflammatory and immune disease, the Company's strategy is to pursue
commercialization arrangements with collaborators.
   
  Expand and protect proprietary technology and products. In the United
States, the Company has seven issued patents and 80 pending patent
applications, of which nine have been allowed (including five pending patent
applications covering the pharmaceutical composition and oncology, anti-
inflammatory and other methods of use for Lisofylline and one pending patent
application covering the chemical compounds and pharmaceutical compositions of
CT-2584, CT-3578 and CT-3501). CTI intends to file additional patent
applications with respect to improvements in its core technology and to
specific products and processes that it develops.     
 
PRODUCTS UNDER DEVELOPMENT
 
  The following table summarizes the potential market applications and current
development status for the Company's products under development:
 

<TABLE>   
<CAPTION>
 DEVELOPMENT
   PROGRAM        PRODUCT DESCRIPTION                   DEVELOPMENT STATUS
- -----------------------------------------------------------------------------------------
 <C>          <S>                            <C>
 ONCOLOGY
  Lisofylline Cancer therapy adjunct for     Phase II/III trial for BMT completed;
               the acceleration of blood     Phase II/III trial for AML ongoing;
               cell recovery and the re-     Pivotal Phase III trial for BMT
               duction of infection,          expected to begin by the end of 1996;
               mucositis and mortality       Phase II/III trial for mucositis expected to
               following high dose radia-     begin by the end of 1996
               tion and/or chemotherapy
  CT-2408R    Oral Lisofylline analog        Preclinical
  CT-2584     Chemotherapeutic agent         Phase I/Ib trials in progress
               targeting chemotherapy-re-
               sistant tumor cells
  CT-2412     Chemotherapy and radiation     Lead compound
               sensitizer for p53- and Rb-
               deleted or mutated tumor
               cells
  CT-3501     Angiogenesis inhibitor         Screening
- -----------------------------------------------------------------------------------------
 INFLAMMATION
  Lisofylline Agent for the prevention and   Phase II/III trial completed;
               treatment of ALI, systemic    Pilot Phase II trial completed;
               inflammation and MOF fol-     Pivotal Phase III trial expected to
               lowing traumatic injury        begin by the second quarter of 1997
- -----------------------------------------------------------------------------------------
 IMMUNOLOGY
  CT-3578     Agent for the treatment of     Lead compound
               acute
               organ transplant rejection
</TABLE>
    
- -------------------------------------------------------------------------------
  SCREENING refers to the identification of therapeutic candidates as lead
  compounds.
     
  LEAD COMPOUND refers to a compound that exhibits pharmacological properties
  which are evaluated in vitro and/or in animal models prior to commencement
  of preclinical testing.     
  PRECLINICAL testing includes pharmacology and toxicology studies in vitro
  and in animal models, formulation work and manufacturing scale-up in
  preparation for submission of an IND.
 
                                      12

<PAGE>
 
DEVELOPMENT PROGRAM--ONCOLOGY
 
  Cancer is the second leading cause of death in the United States, resulting
in over 550,000 deaths annually. The National Cancer Advisory Board reports
that more than 8 million people in the United States have cancer, and projects
that cancer will surpass heart disease as the leading cause of death in the
United States by the end of the decade. Four types of cancer--prostate, colon,
breast and lung--account for almost 60% of the new cancer cases reported each
year in the United States.
 
  The most common methods of treating patients with cancer include surgery,
radiation, drug therapy such as chemotherapy, and supportive care therapy. A
cancer patient often receives a combination of several of these treatment
modalities depending upon the type and extent of the disease. Radiation
therapy involves the exposure of tumor cells to x-rays, gamma rays or other
high energy particles which get absorbed by the tumor and by surrounding
normal tissues. These high energy particles generate "free oxygen radicals" (a
highly reactive form of oxygen) in the exposed tissues, resulting in cell
damage and death of both normal and cancerous cells. Chemotherapy involves the
use of chemical agents which are toxic to rapidly dividing or growing cells,
such as cancer cells and certain other normal cells, including bone marrow
cells, hair follicle cells, and the cells lining the mouth, stomach and
intestinal tract. Supportive care therapy involves the use of a therapeutic
agent as an adjunct to the primary therapy in order to lessen the toxicities
associated with such primary therapy.
 
  The Company seeks to assemble a portfolio of drugs that address three of the
major unmet needs in the treatment of patients with cancer. These products
include (i) Lisofylline--a supportive care agent intended to reduce the
incidence of infection, mucositis and mortality among patients receiving high
doses of radiation and/or chemotherapy, (ii) CT-2584--a novel anti-cancer drug
for the treatment of patients with chemotherapy-resistant cancers, and (iii)
CT-2412--a therapeutic compound with the potential ability to restore
radiation and chemotherapy sensitivity among cancers that have deleted or
mutated p53 or retinoblastoma protein ("Rb") tumor suppressor genes.
 
 Lisofylline
 
  The predominant acute toxicities of cancer treatments such as radiation and
chemotherapy are bone marrow suppression with neutropenia (a reduction in
infection fighting white blood cells ("WBCs")), thrombocytopenia (a reduction
in platelets, cells that cause clotting and are necessary to prevent
bleeding), anemia (reduction in oxygen carrying red blood cells ("RBCs")) and
mucositis (acute toxicity to the cells lining the mouth, stomach and
intestinal tract). Neutropenia, mucositis and thrombocytopenia make up 80% of
the toxicities resulting from current anti-cancer treatment regimens. Since
the ability to deliver a full dose of chemotherapy on time during each
scheduled cycle of therapy is a major determinant in the success of the
treatment, dose-limiting side effects are directly responsible for placing the
patient at risk, not only for infection and bleeding, but also for treatment
failure.
 
  Unlike anemia and thrombocytopenia for which physicians can transfuse RBCs
and platelets, there are no supportive care measures that adequately treat or
prevent mucositis. Since the mouth and intestines harbor potentially lethal
bacteria, fungi and viruses, mucositis is a major contributing factor to life-
threatening infections that follow cancer therapies. Existing WBC growth
factors, such as Neupogen (G-CSF), only treat the neutropenia induced by
cancer therapy but fail to treat other acute toxicities of cancer treatments
such as thrombocytopenia and mucositis. Similarly, existing RBC growth
factors, such as Epogen (EPO), only treat anemia. Despite these limitations,
worldwide sales of G-CSF and EPO exceeded $936 million and $882 million,
respectively in 1995.
 
  In preclinical animal models, Lisofylline prevented the production of
inhibitors of blood cell regeneration and accelerated the recovery of all
three types of blood cells (WBCs, RBCs and platelets) following high dose
radiation and/or chemotherapy. The Company believes that the potential ability
of Lisofylline to accelerate stem cell recovery in bone marrow and in the
gastrointestinal tract, leading to rapid recovery of WBCs, RBCs and platelets,
along with decreased duration and severity of mucositis, resulting in
decreased risk of infection and mortality, presents a superior therapeutic
profile when compared to existing supportive care agents.
 
                                      13

<PAGE>
 
  More than 320 patients have participated in clinical trials for Lisofylline
for oncology and inflammatory disease indications. The Company has completed
one Phase II/III trial and has one ongoing Phase II/III trial for oncology
indications. The Company is planning to commence a pivotal Phase III trial
among patients undergoing high dose radiation and/or chemotherapy followed by
BMT by the end of 1996 and is also planning to commence a Phase II/III trial
for mucositis by the end of 1996.
   
  The Phase II/III trial completed in the first quarter of 1996 consisted of a
60 patient multi-center double blinded placebo controlled trial which
investigated the effect of two different doses (2 mg/kg and 3 mg/kg) of
Lisofylline on the rate of blood cell recovery, transfusion requirements, and
the incidences of infection, toxicity and mortality in cancer patients
undergoing high dose radiation and/or chemotherapy followed by BMT. On an
intent to treat analysis at 100 days following BMT, this study demonstrated
that administration of 3 mg/kg (high dose) of Lisofylline resulted in a
statistically significant reduction in mortality (p = 0.022), incidence of
serious and fatal infections (p = 0.002), and the duration of absolute
neutropenia (p = 0.047) (defined as the number of days following BMT with
fewer than 100 neutrophils per microliter of blood) when compared to placebo
recipients or patients randomized to receive 2 mg/kg (low dose) of
Lisofylline. In addition, there was a strong trend toward a reduction in the
incidence of severe mucositis (p = 0.1) among high dose Lisofylline recipients
compared to placebo recipients or patients randomized to receive the low dose
of Lisofylline. Although certain endpoints of the trial regarding neutrophil
and platelet recovery and transfusion requirements were not met, patients
attaining higher blood levels of Lisofylline did experience a more rapid
recovery of neutrophils and platelets, and required fewer transfusions, than
patients with lower blood levels of Lisofylline. No adverse side effects
attributable to Lisofylline were detected in this trial.     
 
  The table below summarizes the results of the Phase II/III BMT trial of
Lisofylline in patients 100 days after receiving high dose radiation and/or
chemotherapy followed by BMT:
 

<TABLE>       
<CAPTION>
                                                LISOFYLLINE
                                                  3mg/kg    PLACEBO p VALUE(1)
                                                ----------- ------- ----------
      <S>                                       <C>         <C>     <C>
      Mortality rate...........................   11%       44%       0.022
      Incidence of serious and fatal infec-
       tions...................................   0%        44%       0.002
      Duration of absolute neutropenia (2).....   3 days    6 days    0.047
      Incidence of severe mucositis............   22%       44%       0.1
      Median days of fever.....................   1         1         n/s
      Median days to neutrophil recovery (3)...   15        15        n/s
      Median days to platelet recovery (4).....   18        14        n/s
      Median number of RBC transfusions........   2         2.5       n/s
      Median number of platelet transfusions...   5         4         n/s
</TABLE>
    
- --------
  n/s   Not statistically significant
  (1)   A p value of less than or equal to 0.05 is considered statistically
        significant. A p value of less than or equal to 0.15 demonstrates a
        trend toward statistical significance. 
   
  (2)   Duration of absolute neutropenia is defined as the number of days
        following BMT with fewer than 100 neutrophils per microliter of blood.
           
  (3)   Days to neutrophil recovery is defined as the number of days following
        BMT to achieve a neutrophil count of greater than 500 neutrophils per
        microliter of blood.
     
  (4)   Days to platelet recovery is defined as the number of days following
        BMT to achieve a platelet count of greater than 20,000 platelets per
        microliter of blood.     
   
  As stated above under "--Risk Factors--Dependence on Others; Collaborators,"
Schering informed the Company that its decision not to activate a
collaboration agreement with the Company was based on, among other factors,
(i) its view that one of the endpoints of the Phase II/III BMT trial, white
blood cell recovery, was not met and (ii) its view that the clinical trial
results and related data regarding mortality rate and incidence of serious and
fatal infection were difficult to interpret and that, as a result, Schering
could not determine that the data was meaningful.     
 
                                      14

<PAGE>
 
   
  Based on the results of its Phase II/III BMT trial, the Company anticipates
starting a 100 patient pivotal Phase III trial in 1996 for Lisofylline among
patients undergoing high dose radiation and/or chemotherapy followed by BMT.
This study will look to confirm the Company's Phase II/III BMT trial results.
The Company expects that the principal endpoints will include the incidence of
serious and fatal infection and mortality. The Company also anticipates that
this trial will yield information about the drug's impact on the incidence of
severe mucositis. The Company is planning to commence a Phase II/III trial in
late 1996 to examine the effect of Lisofylline on the incidence and severity
of mucositis among cancer patients receiving high dose radiation and/or
chemotherapy.     
 
  The Company has an ongoing Phase II/III trial which was initiated in April
1995 among patients with newly diagnosed adult myelogenous leukemia ("AML")
undergoing treatment with high dose chemotherapy. This study will examine the
effects of Lisofylline on blood cell recovery, infection and mortality. When
completed, this study will have included approximately 50 patients. The
Company anticipates that enrollment for this trial will be completed by the
end of 1996.
 
 CT-2408R
 
  Lisofylline is currently being developed for intravenous administration. The
Company has demonstrated in animals that Lisofylline can also be administered
as a subcutaneous ("SQ") injection. The Company has also developed CT-2408R,
which is an analog of Lisofylline that has the potential to be administered
orally. Because SQ dosing is physiologically similar to intravenous
administration, the regulatory approval process may be faster for an SQ
formulation than for an oral analog of Lisofylline.
 
 CT-2584
 
  Chemotherapy resistance is a major impediment to the effective treatment of
certain cancers. Approximately 50% of all cancer patients undergo
chemotherapy. Of these patients, 90% (45% of all cancer patients) have tumors
that will develop resistance to chemotherapy. Resistance emerges as tumor
cells are exposed to currently available chemotherapeutic agents. Because the
majority of existing chemotherapeutic agents operate by the same mechanism of
action, the Company believes that drugs with unique mechanisms of action may
reduce the incidence of chemotherapy resistant tumors and, as a result, may be
effective in killing tumors.
 
  CT-2584 is the Company's novel small molecule drug for treatment of patients
with chemotherapy-resistant cancers, including prostate, colon, lung and
breast cancer. The Company believes that CT-2584 is a highly specific
chemotherapeutic agent that works through a unique mechanism of action which
targets the process by which cancer cells grow and spread throughout the body.
Unlike normal growing cells, such as bone marrow cells, tumor cells contain
higher levels of a specific species of PA. This species of PA appears to be
involved in the unregulated cell growth characteristic of cancer cells.
Company scientists have isolated an enzyme called phosphotidylcholine
phospholipase-D ("PC-PLD"), which appears to be responsible for the production
of this species of PA. CT-2584 directly overactivates tumor cell PC-PLD,
resulting in the destruction of tumor cell mitochondria. Because normal cells
do not produce appreciable quantities of this species of PA, CT-2584 does not
appear to affect normal cell mitochondria function and, as such, has not
demonstrated toxicity to normal cells at concentrations which are effective in
killing cancer cells.
 
  In preclinical testing, CT-2584 demonstrated toxicity to all tumor cell
lines tested and to human tumor biopsy samples. These cell lines and samples
involved prostate, brain, colon, breast, lung and ovarian cancers, as well as
certain leukemias and lymphomas. In addition, tumors that were resistant to
high levels of standard chemotherapies were rendered up to 9,000-fold more
sensitive to those agents in the presence of low concentrations of CT-2584.
CT-2584 also significantly inhibited cancer cell induced new blood vessel
formation (angiogenesis) at drug levels below which cancer cell-killing is
observed. CT-2584 was non-toxic to normal bone marrow and gastrointestinal
cells in animal models at concentrations 5-10 times higher than concentrations
which were effective in killing cancer cells.
 
                                      15

<PAGE>
 
   
  In November 1995, the Company initiated a Phase I/Ib trial in the United
Kingdom among patients with advanced colon and other types of cancer. In
February 1996, the Company filed an Investigational New Drug application
("IND"), and in June 1996 the Company initiated a parallel Phase I/Ib trial in
the United States for patients with advanced cancers, including patients with
chemotherapy-resistant colon, prostate and ovarian cancers.     
 
CT-2412
 
  The Company has developed a series of second generation compounds which have
the potential ability to restore radiation and chemotherapy sensitivity among
cancers that have deleted or mutated p53 or retinoblastoma protein ("Rb")
tumor suppressor genes. One central function of the p53 and Rb tumor
suppressor genes is to bind to DNA and regulate genes that control cell
growth. Deletion or mutation of these genes occurs in over 60% of all cancers
and contributes to the failure of conventional cancer treatment. Current known
experimental approaches to restoring functional p53 and Rb tumor suppressor
genes utilize gene therapy techniques to insert normal p53 or Rb genes into
cancer cells. Such approaches are presently limited by the ineffective
transfer rates of normal genes to cancer cells.
   
  Company scientists and their collaborators have discovered that the deletion
or mutation of p53 and Rb tumor suppressor genes may modulate stress activated
pathways such as the SAPK pathway. The Company believes that the development
of compounds which suppress the activation of the SAPK pathway may represent a
novel pharmacologic approach to restoring and enhancing radiation and
chemotherapy sensitivity among tumors with deleted or mutated p53 or Rb tumor
suppressor genes. CT-2412 is among a family of small molecules which, in lead
compound testing, has been demonstrated to increase over 10,000-fold the
sensitivity of p53- and Rb- deleted or mutated cancer cells to the effects of
radiation and/or chemotherapy.     
 
CT-3501
 
  CTI is screening CT-3501 as a potential lead compound to inhibit
angiogenesis among cancer patients. CTI is also investigating CT-3501 as an
agent to prevent metastasis or tumor recurrence among ovarian, colon and lung
cancer patients undergoing surgical resection or radiation treatment.
 
DEVELOPMENT PROGRAM--INFLAMMATORY DISEASE
 
  Traumatic injury and related complications, such as acute lung injury
("ALI") and multi-organ failure ("MOF"), are one of the leading causes of
death for people under the age of 45, as well as being a significant cost to
society with an estimated $14 billion per year spent on care of motor vehicle
injury patients alone. ALI following trauma is thought to result from
oxidative injury at the time of blood and fluid resuscitation in patients who
have experienced traumatic injuries. This oxidative injury results in a
widespread systemic inflammatory response ("SIRS") followed by MOF. No
specific therapies currently exist to treat or prevent ALI, SIRS or MOF.
Current therapeutic approaches to ALI focus on supportive mechanical
ventilation.
 
 Lisofylline
   
  In addition to its application in cancer patients, the Company believes that
Lisofylline may also be an effective agent to treat ALI, systemic inflammation
and MOF among patients who have experienced traumatic injuries. Preclinical
animal testing has indicated that Lisofylline inhibited SIRS and the MOF that
frequently accompanies SIRS. In the first quarter of 1995, the Company
completed a 53-patient multi-center double blinded placebo controlled Phase
II/III trial of Lisofylline among patients with advanced kidney or skin cancer
receiving the anti-cancer agent Interleukin-2 ("IL-2"). IL-2 is highly toxic,
and the treatment often results in systemic inflammatory side effects which
may lead to MOF and death. The purpose of this study was to examine if
Lisofylline could be effective in reducing MOF in patients receiving IL-2. The
results of this study demonstrated that during their first cycle of therapy
following eight doses of IL-2, 70% of patients treated with Lisofylline
tolerated full doses of IL-2 as compared with 38% of placebo recipients
(p = 0.002). Despite receiving more intensive IL-2 treatment, Lisofylline
recipients experienced significantly less IL-2 induced toxicity than placebo
recipients (p = 0.036) at the end of the first week of IL-2 treatment.     
 
                                      16

<PAGE>
 
  The Company has completed a pilot Phase II study of Lisofylline among 13
patients with life-threatening infections, systemic inflammation and MOF.
Twelve patients were evaluable for endpoint analysis. In the first 14 days,
Lisofylline recipients experienced a 40% improvement from baseline in median
MOF scores compared to placebo recipients. In addition, all patients receiving
Lisofylline survived through day 28 compared to 64% of placebo recipients.
   
  The Company is preparing a pivotal Phase III trial for Lisofylline among
patients experiencing traumatic injuries who are at risk of developing
systemic inflammation, lung injury and death. This study will examine the
effect of Lisofylline on the incidence and severity of ALI, MOF and mortality.
The Company anticipates initiating this trial by the second quarter of 1997.
    
DEVELOPMENT PROGRAM--IMMUNE DISEASE
 
 CT-3578
 
  CT-3578 is a member of a class of developmental candidates for the
prevention of organ transplant rejection and the treatment of immune diseases.
Early in vitro and preclinical animal testing suggested that CT-3578 may
induce tolerance to foreign antigens. Tolerance occurs when an antigen,
previously recognized by the body's immune system as "foreign," accepted as
non-foreign or "self." A therapeutic agent which induces tolerance may allow
patients to accept organ transplants from genetically different donors without
the need for lifelong immunosuppressive therapy and its accompanying side
effects. Preclinical in vitro studies demonstrate that CT-3578 has the
potential to be more effective than cyclosporine-A in inhibiting T-cell
activation. Cyclosporine-A is the leading commercially available
immunosuppressive drug, with estimated worldwide sales in excess of $1 billion
in 1994. The Company believes that CT-3578 may be a safe, selective agent in
the treatment or prevention of organ transplant rejection and graft vs. host
disease.
 
PROPRIETARY DRUG DISCOVERY TECHNOLOGY
   
  CTI's proprietary drug discovery technology consists of three components:
(i) high resolution technology for quantitative measuring of specific species
of lipids; (ii) cloning of critical lipid regulatory enzymes; and (iii) using
the cloned enzymes to validate targets and to develop high throughput screens
capable of analyzing large chemical libraries.     
 
  CTI has developed proprietary technology that has enabled it to determine
the effects of a variety of physical and chemical stimuli, growth factors,
cytokines and oncogene induced events on the production of species of PA and
the enzymes which control their production and degradation. Standard industry
techniques for measuring lipid second messengers are time consuming and often
inadequate for measuring lipids like PA which are produced in relatively small
quantities following stimulation and are degraded within seconds of their
production. Moreover, separation of specific species of PA is difficult. CTI
possesses several proprietary lipid analytical technologies, including its
proprietary ChiRx technology, which can identify each species of PA produced
in response to a variety of stimuli in various cell types. In addition, the
Company has acquired unique and powerful high performance thin layer
chromatography capabilities which allow for the separation of species of PA
into a homogenous and purified fraction. This technology enables the
separation of many distinct PA species, thus providing a qualitative and
quantitative methodology to examine the effects of CTI's compounds.
 
  Company scientists have identified, isolated and cloned several enzymes
which control the production or degradation of different species of PA.
Through application of genetic, molecular and biochemical techniques, the
Company can determine the relationship between the PA species controlled by
these enzymes and disease processes or conditions. Once established, high
throughput assays can be developed against which the Company can screen its
small molecule compounds to detect their effects on specific species of PA.
 
  Company chemists integrate this information into a directed chemical
synthetic effort which involves rational molecular modeling. Once a new
chemical entity is synthesized, it is tested in a series of biological systems
to examine its effects on modulating specific species of PA and other
downstream stress activated second messengers and the resulting abnormal
cellular responses. Once optimized, compounds are screened for
 
                                      17

<PAGE>
 
maximum specificity and safety and then undergo further optimization as
developmental candidates for selection as lead compounds for preclinical
studies.
 
  The Company's scientists have identified seven distinct species of PA and
believe other species of PA may exist. In addition, the Company has identified
several chemical entities which the Company believes may regulate the
activation of controlling enzymes responsible for the production of such PAs.
 
COLLABORATIONS
 
 BioChem Pharma Collaboration
   
  In March 1995, CTI entered into a collaboration agreement with BioChem
Pharma for the development and commercialization of Lisofylline and CT-2584 in
Canada. Under the collaboration agreement (the "BioChem Collaboration
Agreement"), BioChem Pharma will be responsible for obtaining regulatory
approval for Lisofylline and CT-2584 in Canada. Although BioChem Pharma will
have no obligation to conduct any research and development activities, it will
have the right to have CTI perform clinical trials in Canada at BioChem
Pharma's expense. BioChem Pharma will have the exclusive right to
commercialize Lisofylline and CT-2584 in Canada, subject to the payment of
royalties to CTI. CTI will also receive payments under the BioChem
Collaboration Agreement if certain milestones are achieved. BioChem Pharma may
terminate the BioChem Collaboration Agreement with respect to any product at
any time for any reason upon 30 days' notice. In connection with the BioChem
Collaboration Agreement, BioChem Pharma agreed to purchase 7,462.687 shares of
Convertible Preferred Stock in the Company's 1995 Private Placement for an
aggregate purchase price of $2.5 million.     
 
 Schering AG
   
  In February 1996 the Company entered into an agreement with Schering AG
("Schering") pursuant to which, among other things, the Company and Schering
would collaborate in the funding, research, development and commercialization
of Lisofylline and CT-2584 on the terms and conditions specified therein. Upon
execution of the agreement, Schering paid the Company a $3,000,000 non-
refundable signing fee. The remainder of the agreement was contingent upon
Schering finding the clinical trial results and related data from the
Company's Phase II/III BMT trial (the "Trial Data") acceptable within thirty
days after its receipt. The Company furnished Schering with the Trial Data in
late February 1996. On April 2, 1996, after a mutual extension of the thirty-
day review period, Schering informed the Company that it did not wish to
activate the agreement. Although the agreement did not require Schering to
specify in detail its reasons for not activating the agreement, Schering
informed the Company that its decision was based on, among other factors,
(i) its view that one of the endpoints of the Phase II/III BMT trial, white
blood cell recovery, was not met and (ii) its view that the Trial Data
regarding mortality rate and incidence of serious and fatal infection were
difficult to interpret and that, as a result, Schering could not determine
that the data was meaningful. See "--Risk Factors--Dependence on Others;
Collaborators" and "--Development Program--Oncology."     
   
  As a result of Schering's decision not to activate the agreement and
following the Company's review of the Trial Data, the Company revised its
planned expenditures for 1996 and 1997, resulting in a reduction of
approximately $11.4 million. These reductions consisted primarily of the
elimination of expenses which would have been incurred at Schering's request
in connection with seeking regulatory approval for Lisofylline and CT-2584 in
Europe and Japan, and certain planned research activities that would have been
sponsored by Schering under the Agreement. These reduced expenditures also
reflect the Company's decision to delete a 2mg/kg (low dose) component from
the Company's planned pivotal Phase III trial for Lisofylline following the
Company's review of the Trial Data.     
   
  The Company is presently engaged in discussions with potential collaborators
regarding the development, manufacturing and commercialization of Lisofylline,
CT-2584 and other products under development, and expects to engage in similar
discussions with potential collaborators from time to time in the future.
Although there can be no assurance that the Company will enter into any such
collaborative arrangement on acceptable
    
                                      18

<PAGE>
 
   
terms, the Company believes that Schering's decision not to activate the
agreement will not have a material adverse impact on the Company's ability to
enter into any such collaborative arrangement on favorable terms. See "--Risk
Factors--Dependence on Others; Collaborators."     
 
PATENTS AND PROPRIETARY RIGHTS
   
  CTI has dedicated significant resources to protect its intellectual
property. In the United States, the Company has seven issued patents and 81
pending patent applications, including divisional patent applications and
continuations-in-part, covering a variety of new chemical entities,
pharmaceutical compositions, synthetic processes, methods of use, research
tools and diagnostics. Nine of the Company's pending patent applications have
received notices of allowance, including five pending patent applications
covering the pharmaceutical composition and oncology, anti-inflammatory and
other methods of use for Lisofylline and one pending patent application
covering the chemical compounds and pharmaceutical compositions of CT-2584,
CT-3578 and CT-3501. CTI intends to file additional patent applications, when
appropriate, with respect to improvements in its core technology and to
specific products and processes that it develops. Generally it is CTI's policy
to file foreign counterparts in countries with significant pharmaceutical
markets and a patent enforcement infrastructure. CTI has filed foreign
counterparts of certain of its issued and pending patent applications in many
countries. There can be no assurance that any patents will issue from any
present or future applications or, if patents do issue, that such patents will
be issued on a timely basis or that claims allowed on issued patents will be
sufficient to protect the Company's technology. In addition, there can be no
assurance that the patents issued to CTI will not be challenged, invalidated
or circumvented or that the rights granted thereunder will provide proprietary
protection or commercial advantage to the Company. With respect to such issued
U.S. patents or any patents that may issue in the future, there can be no
assurance that they will effectively protect the technology involved,
foreclose the development of competitive products by others or otherwise be
commercially valuable.     
 
  The commercial success of the Company will also depend in part on the
Company's neither infringing patents or proprietary rights of third parties
nor breaching any technological licenses which relate to the Company's
technologies and potential products. In general, the development of
therapeutic products is intensely competitive and many pharmaceutical
companies, biotechnology companies, universities and research institutions
have filed and will continue to file patent applications and receive patents
in this field. If patents are issued to other entities that contain
competitive or conflicting claims with respect to the technology and compounds
pursued by CTI and such claims are ultimately determined to be valid, no
assurance can be given that CTI would be able to obtain licenses to these
patents at a reasonable cost or develop or obtain alternative technology or
compounds.
   
  The Company is aware of certain patents belonging to third parties that
could be interpreted broadly to compromise the Company's freedom to make and
sell Lisofylline in the United States for use in preventing lung injury
following traumatic injury or sepsis. The Company believes, upon advice of
patent counsel, that the manufacture, use and sale of Lisofylline does not
infringe any valid claim of such third party patents. See "Legal Matters." If
such patents were to restrict the use of Lisofylline for such indications, the
Company may be required to obtain a license from such parties. There can be no
assurance that any such license would be available to the Company upon
reasonably acceptable terms, if at all. The Company could also face
significant costs associated with any litigation relating to such patents. See
"--Risk Factors--Ability to Protect Intellectual Property."     
 
  CTI has sought and intends to aggressively seek patent protection in the
United States, Europe and Japan to protect any products that it may develop.
CTI also intends to seek patent protection or rely upon trade secrets to
protect certain of its enabling technologies that will be used in discovering
and evaluating new drugs which could become marketable products. However,
there can be no assurance that such steps will effectively protect the
technology involved. To protect any such trade secrets and other proprietary
information, CTI relies on confidentiality and material transfer agreements
with its corporate partners, employees, consultants, outside scientific
collaborators and sponsored researchers and other advisors. There can be no
assurance that these agreements will not be breached, that the Company will
have adequate remedies for breach or that the
 
                                      19

<PAGE>
 
Company's trade secrets will not otherwise become known or independently
discovered by competitors. CTI also has its employees, members of its
Scientific Advisory Board and Clinical Advisory Board, and its consultants
enter into agreements requiring disclosure to CTI of ideas, developments,
discoveries or inventions conceived during employment or during consulting and
assignment to CTI of proprietary rights to such matters related to the
business and technology of CTI. The extent to which efforts by others will
result in patents and the effect on CTI of the issuance of such patents is
unknown. Further, to enforce any patents issued to the Company or determine
the scope and validity of other parties' proprietary rights, the Company may
have to engage in litigation, which would result in substantial cost to, and
diversion of efforts by, the Company. There can be no assurance that the
Company's issued or licensed patents would be held valid. An adverse outcome
could subject the Company to significant liabilities to third parties, require
disputed rights to be licensed from third parties or require the Company to
cease or modify its use of such technology, any of which could have a material
adverse effect on the Company. If the Company elects or is required to
participate in interference proceedings declared by the U.S. Patent and
Trademark Office to determine priority of invention, substantial cost to the
Company could result even if the eventual outcome is favorable to the Company.
   
  There can be no assurance that others will not independently develop
substantially equivalent proprietary information or otherwise obtain access to
CTI's know-how or that others will not be issued patents which may prevent the
sale of Company products or require licensing and the payment of significant
fees or royalties by CTI for the pursuit of its business. Trade secrets and
other unpatented proprietary information of CTI may be difficult to protect,
notwithstanding confidentiality agreements with CTI's employees and
consultants. See "--Risk Factors--Ability to Protect Intellectual Property."
    
MANUFACTURING
 
  Lisofylline is currently being manufactured by third party vendors on a fee
for service basis. The Company is presently engaged in negotiations with
qualified third party manufacturers for bulk intermediate and bulk
pharmaceutical chemical production to support the Company's future clinical
trials and future market demands. CTI believes it has developed a process for
manufacturing Lisofylline in its own laboratories and those of external
manufacturers that would enable its manufacture in commercial quantities.
Although CTI currently does not have the capability to manufacture products
under current Good Manufacturing Practices ("cGMP") prescribed by the FDA, it
is seeking to develop such capacity with manufacturing relationships. The
Company has selected manufacturers which it believes comply with cGMP and
other regulatory standards. The Company currently uses two external suppliers
for solid-phase chemical manufacture of Lisofylline bulk drug and two
suppliers for fill-finish. The Company has established a quality control and
quality assurance program, including a set of standard operating procedures
and specifications, designed to ensure that the Company's products are
manufactured in accordance with cGMP and other applicable domestic and foreign
regulations. However, the Company is dependent upon contract manufacturers to
comply with such procedures and regulations. There can be no assurance that
these manufacturers will meet the Company's requirements for quality, quantity
or timeliness.
 
  CTI intends to develop facilities for manufacturing certain key intermediate
products in the synthesis of Lisofylline and certain of its other
pharmaceutical compounds, such as CT-2584. The Company does not intend for
this facility to be a cGMP facility but rather a facility for conducting
process scale-up, research and development and production of bulk intermediate
compounds utilized in the final manufacture of Lisofylline, CT-2584 or any
future drug candidates. CTI has signed a Memorandum of Understanding with the
Port of Seattle (the "Port") which contemplates site development and
construction of a building by the Port to be leased by CTI for a bulk
manufacturing facility near Seattle, Washington. Pursuant to the terms of the
Memorandum of Understanding, CTI would lease such facility from the Port for
an initial period of 15 years with two five-year options to extend such lease
for an additional 10 years and an option to lease an adjacent 10- to 15-acre
parcel. CTI would make lease payments to the Port based on an agreed upon rate
of return on the fair market value of the land and on the development and
construction costs incurred by the Port, which costs are to be amortized over
the term of the lease or such earlier period selected by CTI. The Port
proposes to finance such development through Industrial Development District
funding, which may require a vote of the general electorate of King
 
                                      20

<PAGE>
 
County, Washington. The obligations of CTI and the Port under the Memorandum
of Understanding are subject to several conditions and contingencies,
including CTI's receipt of FDA approval for the marketing and commercial sale
of Lisofylline.
   
  If CTI is unable to finance a bulk manufacturing facility or determines not
to do so, CTI may need to enter into collaborative relationships with other
parties which have established manufacturing capabilities or contract with
third parties for the manufacture of any products it may develop. If CTI does
so it will be dependent upon such collaborators or third parties to timely
supply it with products manufactured in compliance with cGMP or similar
standards imposed by foreign regulators. Collaborators and contract
manufacturers may violate cGMP upon occasion and the FDA has intensified its
oversight of manufacturers. There can be no assurance that the FDA would not
take action against a collaborator or a contract manufacturer who violates
cGMP. In addition, if CTI is unable to enter into collaborative relationships
or obtain or retain third party manufacturing on commercially acceptable
terms, it may be delayed in its ability to commercialize products or may not
be able to commercialize its products as planned. No assurance can be given
that the Company, either alone or together with collaborators or third party
contract manufacturers, will be able to make the transition to commercial
production. See "--Risk Factors--Reliance on Third Party Manufacturers;
Manufacture of Products in Commercial Quantities."     
 
MARKETING
 
  CTI has no experience in marketing, sales or distribution. The Company
believes, however, that the United States oncology market is accessible by a
limited marketing staff due to the concentrated market of prescribing
physicians. Approximately 5,000 oncologists control the vast majority of
prescriptions for cancer therapeutics. The Company intends to develop its own
sales and marketing infrastructure in the United States to commercialize its
portfolio of oncology products, either on its own or, to the extent the
Company enters into any commercialization arrangements, with collaborators.
With respect to the commercialization of its oncology products outside the
United States, and with respect to the worldwide commercialization of its
portfolio of products for inflammatory and immune disease, the Company's
strategy is to pursue commercialization arrangements with collaborators.
   
  If the Company develops any products with commercial potential, CTI will
need to develop marketing and sales resources, and may seek to enter into
collaborative arrangements with third parties which have established marketing
and sales capabilities or may choose to pursue the commercialization of such
products on its own. There can be no assurance that the Company or any such
collaborator will establish adequate sales and distribution capabilities or be
successful in gaining market acceptance for products. In accordance with its
business plan, CTI has initiated discussions with several major pharmaceutical
companies for potential strategic alliances. There can be no assurance that
CTI will enter into any such alliances or that the terms of any such alliances
will be favorable to CTI. See "--Risk Factors--Dependence on Others;
Collaborators" and "--Risk Factors--Absence of Sales and Marketing
Organization."     
 
COMPETITION
 
  Competition in the pharmaceutical and biotechnology industries is intense.
CTI faces competition from a variety of sources, both direct and indirect. CTI
believes there may be several pharmaceutical or biotechnology companies that
focus on cell membrane lipids in regulating cellular processes. Many other
companies compete indirectly with CTI for the same therapeutic indications but
with different approaches by focusing, for example, on signal transduction,
cell receptor technology, transcription factors and gene therapies. CTI also
competes with other large pharmaceutical companies that produce and market
synthetic compounds and with other specialized biotechnology firms in the
United States, Japan, Europe and elsewhere. Many of the Company's existing or
potential competitors have substantially greater financial, technical and
human resources than the Company and may be better equipped to develop,
manufacture and market products.
 
  CTI expects to encounter significant competition for the principal
pharmaceutical products it plans to develop. Companies that complete clinical
trials, obtain required regulatory approvals and commence
 
                                      21

<PAGE>
 
commercial sales of their products before their competitors may achieve a
significant competitive advantage. Accordingly, the relative speed with which
the Company or any future collaborators can develop products, complete
preclinical testing and clinical trials and approval processes, and supply
commercial quantities of the products to the market are expected to be
important competitive factors. A number of biotechnology and pharmaceutical
companies are developing new products for the treatment of the same diseases
being targeted by CTI. In some instances, such products have already entered
clinical trials or received FDA approval.
 
  Significant levels of research in biotechnology, medicinal chemistry and
pharmacology occur in universities and other nonprofit research institutions.
These entities have become increasingly active in seeking patent protection
and licensing revenues for their research results. They also compete with CTI
in recruiting skilled scientific talent.
   
  CTI believes that its ability to compete successfully will be based on its
ability to create and maintain scientifically advanced technology, develop
proprietary products, attract and retain scientific personnel, obtain patent
or other protection for its products, obtain required regulatory approvals and
manufacture and successfully market its products either alone or through
outside parties. Many of CTI's competitors have substantially greater
financial, marketing and human resources than CTI. CTI will continue to seek
licenses with respect to technology related to its field of interest and may
face competition with respect to such efforts. See "--Risk Factors--No
Assurance of Successful Product Development," "--Risk Factors--Substantial
Competition" and "--Risk Factors--Ability to Protect Intellectual Property."
    
GOVERNMENT REGULATION
 
  FDA Regulation and Product Approval. Regulation by governmental authorities
in the United States and other countries is a significant factor in the
development, production and marketing of CTI's proposed products. It is
anticipated that all of CTI's products will require regulatory approval by
governmental agencies prior to commercialization. In particular, human
therapeutic products are subject to rigorous preclinical and clinical testing
and other approval procedures in the United States by the FDA and similar
health authorities in foreign countries. Various federal statutes and
regulations also govern or influence the testing, manufacturing, quality
control, safety, labeling, storage, record-keeping and marketing of such
products. The process of obtaining these approvals and the subsequent
compliance with appropriate federal and foreign statutes and regulations
require the expenditure of substantial resources. Any failure by CTI or its
collaborators or licensees to obtain, or any delay in obtaining, regulatory
approval could adversely affect the marketing of any product that CTI may hope
to develop and its ability to receive revenues therefrom. The Company has
neither applied for nor received regulatory approval to market any products.
 
  The steps required before a pharmaceutical agent may be marketed in the
United States include (i) preclinical laboratory, in vivo and formulation
studies, (ii) the submission to the FDA of an Investigational New Drug
Application ("IND"), which must become effective before human clinical trials
may commence, (iii) adequate and well-controlled human clinical trials to
establish the safety and efficacy of the proposed drug in its intended
indication, (iv) the submission of a New Drug Application ("NDA") to the FDA,
and (v) the FDA approval of the NDA.
 
  In order to clinically test, produce and market products for diagnostic or
therapeutic use, a company must comply with mandatory procedures and safety
standards established by the FDA and comparable agencies in foreign countries.
Before beginning human clinical testing of a potential new drug, a company
must file an IND and receive clearance from the FDA. The IND is a summary of
the preclinical studies which were carried out to characterize the drug,
including toxicity and safety studies, as well as an in-depth discussion of
the human clinical studies which are being proposed.
 
  Human clinical trials are typically conducted in three sequential phases
which may overlap. Phase I involves the initial introduction of the drug into
healthy human subjects or patients where the product is tested for safety,
dosage tolerance, absorption, metabolism, distribution and excretion. Phase II
involves studies in a limited patient
 
                                      22

<PAGE>
 
population to (i) identify possible adverse effects and safety risks, (ii)
determine the efficacy of the product for specific, targeted indications, and
(iii) determine dosage tolerance and optimal dosage. When Phase II evaluation
demonstrates that the product is effective and has an acceptable safety
profile, Phase III trials are undertaken to further evaluate dosage and
clinical efficacy and to further test for safety in an expanded patient
population at geographically dispersed clinical study sites. The regulatory
authority or the sponsor may suspend clinical trials at any point in this
process if either entity concludes that clinical subjects are being exposed to
an unacceptable health risk, or for other reasons.
 
  The results of product development, preclinical studies and clinical studies
are submitted to the FDA as part of an NDA for approval of the marketing and
commercial shipment of the product. The FDA may deny an NDA if applicable
regulatory criteria are not satisfied, or may require additional clinical
data. Even if such data is submitted, the FDA may ultimately decide that the
NDA does not satisfy the criteria for approval. Once issued, a product
approval may be withdrawn if compliance with regulatory standards is not
maintained or if problems occur after the product reaches the market. In
addition, the FDA may require testing and surveillance programs to monitor the
effect of approved products which have been commercialized, and it has the
power to prevent or limit further marketing of a product based on the results
of these post-marketing programs.
   
  Satisfaction of these FDA requirements, or similar requirements by foreign
regulatory agencies, typically takes several years and the time needed to
satisfy them may vary substantially, based upon the type, complexity and
novelty of the drug product. The effect of government regulation may be to
delay or to prevent marketing of potential products for a considerable period
of time and to impose costly procedures upon the Company's activities. There
can be no assurance that the FDA or any other regulatory agency will grant
approval for any products being developed by the Company on a timely basis, or
at all. Success in preclinical or early stage clinical trials does not assure
success in later stage clinical trials. Data obtained from preclinical and
clinical activities are susceptible to varying interpretations which could
delay, limit or prevent regulatory approval. If regulatory approval of a
product is granted, such approval may impose limitations on the indicated uses
for which a product may be marketed. Further, even if regulatory approval is
obtained, later discovery of previously unknown problems with a product may
result in restrictions on the product, including withdrawal of the product
from the market. Delay in obtaining or failure to obtain regulatory approvals
would have a material adverse affect on the Company's business. Marketing the
Company's products abroad will require similar regulatory approvals and is
subject to similar risks. In addition, the Company is unable to predict the
extent of adverse government regulations that might arise from future United
States or foreign governmental action. See "--Risk Factors--No Assurance of
FDA Approval; Comprehensive Government Regulation."     
 
  Facilities and manufacturing techniques used for the manufacture of products
for clinical use or for sale must be operated in conformity with cGMP
regulations, the FDA regulations governing the production of pharmaceutical
products. CTI intends to operate its facilities or to arrange for the
manufacture of products at facilities which are operated, as required, in
accordance with cGMP where necessary.
 
  Before the Company's products can be marketed outside of the United States,
they are subject to regulatory approval similar to that required in the United
States, although the requirements governing the conduct of clinical trials,
product licensing, pricing and reimbursement vary widely from country to
country. No action can be taken to market any product in a country until an
appropriate application has been approved by the regulatory authorities in
that country. The current approval process varies from country to country, and
the time spent in gaining approval varies from that required for FDA approval.
In certain European countries, the sales price of a product must also be
approved. The pricing review period often begins after market approval is
granted. No assurance can be given that, even if a product is approved by a
regulatory authority, satisfactory prices will be approved for such product.
 
  The FDA's policies may change and additional government regulations may be
promulgated which could prevent or delay regulatory approval of the Company's
potential products. Moreover, increased attention to the containment of health
care costs in the United States and in foreign markets could result in new
government
 
                                      23

<PAGE>
 
regulations which could have a material adverse effect on the Company's
business. The Company is unable to predict the likelihood of adverse
governmental regulation which might arise from future legislative or
administrative action, either in the United States or abroad.
   
  Third Party Reimbursement and Health Care Reform. The commercial success of
the Company's products under development will be substantially dependent upon
the availability of government or private third-party reimbursement for the
use of such products. There can be no assurance that Medicare, Medicaid,
health maintenance organizations and other third-party payors will authorize
or otherwise budget such reimbursement. Such governmental and third party
payors are increasingly challenging the prices charged for medical products
and services. If the Company succeeds in bringing one or more products to
market, there can be no assurance that such products will be viewed as cost-
effective or that reimbursement will be available to consumers or will be
sufficient to allow the Company's products to be marketed on a competitive
basis. Furthermore, federal and state regulations govern or influence the
reimbursement to health care providers of fees and capital equipment costs in
connection with medical treatment of certain patients. In response to concerns
about the rising costs of advanced medical technologies, the current
administration of the federal government has publicly stated its desire to
reform health care, including the possibility of price controls and revised
reimbursement policies. There can be no assurance that actions taken by the
administration, if any, with regard to health care reform will not have a
material adverse effect on the Company. If any actions are taken by the
administration, such actions could adversely affect the prospects for future
sales of the Company's products. Further, to the extent that these or other
proposals or reforms have a material adverse effect on the Company's ability
to secure funding for its development or on the business, financial condition
and profitability of other companies that are prospective collaborators for
certain of the Company's product candidates, the Company's ability to develop
or commercialize its product candidates may be adversely affected. See "--Risk
Factors--Uncertainty of Pharmaceutical Pricing and Reimbursement."     
 
  Given recent government initiatives directed at lowering the total cost of
health care throughout the United States, it is likely that the United States
Congress and state legislatures will continue to focus on health care reform
and the cost of prescription pharmaceuticals and on the reform of the Medicare
and Medicaid systems. The Company cannot predict the likelihood of passage of
federal and state legislation related to health care reform or lowering
pharmaceutical costs. In certain foreign markets pricing of prescription
pharmaceuticals is already subject to government control. Continued
significant changes in the nation's health care system could have a material
adverse effect on the Company's business.
 
  Environmental Regulation. In connection with its research and development
activities and its manufacturing materials and products, the Company is
subject to federal, state and local laws, rules, regulations and policies
governing the use, generation, manufacture, storage, air emission, effluent
discharge, handling and disposal of certain materials, biological specimens,
and wastes. Although the Company believes that it has complied with these
laws, regulations and policies in all material respects and has not been
required to take any significant action to correct any noncompliance, there
can be no assurance that the Company will not be required to incur significant
costs to comply with environmental and health and safety regulations in the
future. The Company's research and development involves the controlled use of
hazardous materials, including but not limited to certain hazardous chemicals
and radioactive materials. Although the Company believes that its safety
procedures for handling and disposing of such materials comply with the
standards prescribed by state and federal regulations, the risk of accidental
contamination or injury from these materials cannot be eliminated. In the
event of such an accident, the Company could be held liable for any damages
that result and any such liability could exceed the resources of the Company.
 
HUMAN RESOURCES
   
  As of June 1, 1996, CTI employed 100 individuals full-time (including 36
holding doctoral or other advanced degrees). In recruiting additional staff
members, CTI expects to receive continued input from its consultants and
members of its Scientific Advisory Board and Clinical Advisory Board.     
 
                                      24

<PAGE>
 
  CTI's policy is to have each employee and consultant enter into an agreement
which contains provisions prohibiting the disclosure of confidential
information to anyone outside CTI and requires disclosure to CTI of ideas,
developments, discoveries or inventions conceived during employment and
assignment to CTI of proprietary rights to such matters related to the
business and technology of CTI. The extent to which this policy will
effectively protect CTI's proprietary technology and trade secrets is unknown.
See "--Patents and Proprietary Rights."
   
  CTI has assembled a Scientific Advisory Board ("SAB") composed of leaders in
the fields of immunology, cell and molecular biology, and synthetic and
medicinal chemistry, and a Clinical Advisory Board ("CAB") composed of leaders
in the fields of hematology, oncology, immunology, cell and molecular biology,
critical care and medicinal chemistry. The SAB assists CTI in identifying
scientific and product development opportunities, in reviewing with management
the progress of CTI's specific projects, and in recruiting and evaluating
CTI's scientific staff. The CAB assists CTI in determining clinical regulatory
strategy and trial results and identifying optimal indications for CTI's
products. Although CTI expects to receive guidance from the members of its SAB
and CAB, all of such members are employed on a full-time basis by others and,
accordingly, are not likely to devote more than a small portion of their time
to CTI. See "Item 5.--Directors and Executive Officers--Scientific Advisory
Board," and "Item 5.--Directors and Executive Officers--Clinical Advisory
Board."     
 
                                      25

<PAGE>
 
ITEM 2.FINANCIAL INFORMATION.
 
SELECTED FINANCIAL DATA
   
  The selected financial data set forth below with respect to the Company's
statements of operations for each of the three years in the period ended
December 31, 1995, and with respect to the balance sheets at December 31, 1994
and 1995, are derived from the financial statements of the Company included
elsewhere in this Registration Statement that have been audited by Ernst &
Young LLP, independent auditors, and is qualified by reference to such
financial statements and the notes related thereto. The balance sheet data at
December 31, 1992 and 1993 and the statement of operations data for the year
ended December 31, 1992 are derived from audited financial statements of the
Company not included in this Registration Statement. The selected financial
data set forth below with respect to the Company's statements of operations
for the three months ended March 31, 1995 and 1996 and for the period from
September 4, 1991 (date of incorporation) to March 31, 1996, and with respect
to the balance sheet data at March 31, 1996, are derived from unaudited
financial statements of the Company included elsewhere in this Registration
Statement. The unaudited financial data includes all adjustments (consisting
only of normal recurring adjustments) that the Company considers necessary for
a fair presentation of the financial position at such date and the results of
operations for these periods. The results of operations for the three months
ended March 31, 1996 are not necessarily indicative of the results for any
future period or for the full year ending December 31, 1996. The data set
forth below should be read in conjunction with "--Management's Discussion and
Analysis of Financial Condition and Results of Operations" and the financial
statements and the notes related thereto included elsewhere in this
Registration Statement.     

<TABLE>   
<CAPTION>
                                                                                      PERIOD FROM
                                                                                      SEPTEMBER 4,
                                                                    THREE MONTHS     1991 (DATE OF
                              YEAR ENDED DECEMBER 31, (1)         ENDED MARCH 31,    INCORPORATION)
                          --------------------------------------  -----------------   TO MARCH 31,
                            1992      1993      1994      1995      1995     1996         1996
                          --------  --------  --------  --------  --------  -------  --------------
                                         (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                       <C>       <C>       <C>       <C>       <C>       <C>      <C>
STATEMENTS OF OPERATIONS
 DATA:
Revenues:
  Collaboration
   agreements...........  $    --   $    --   $    --   $    100  $    --   $ 3,000     $  3,100
Operating expenses:
  Research and
   development..........     3,926    11,862    14,368    14,211     3,331    3,496       47,863
  General and
   administrative.......     1,661     4,052     5,283     6,539     1,292    1,862       19,399
                          --------  --------  --------  --------  --------  -------     --------
    Total operating
     expenses...........     5,587    15,914    19,651    20,750     4,623    5,358       67,262
                          --------  --------  --------  --------  --------  -------     --------
Loss from operations....    (5,587)  (15,914)  (19,651)  (20,650)   (4,623)  (2,358)     (64,162)
Other income (expense):
  Investment income.....       292       723       616     1,167       111      300        3,100
  Interest expense......       (29)     (137)     (464)     (509)     (129)    (136)      (1,276)
                          --------  --------  --------  --------  --------  -------     --------
Net loss................  $ (5,324) $(15,328) $(19,499) $(19,992) $ (4,641) $(2,194)    $(62,338)
                          ========  ========  ========  ========  ========  =======     ========
Net loss per share (2)..  $ (0.56)  $ (1.00)  $ (1.18)  $  (1.20) $ (0.28)  $ (0.13)
                          ========  ========  ========  ========  ========  =======
Number of shares used in
 computation of net loss
 per share..............     9,430    15,332    16,507    16,699    16,520   17,268
                          ========  ========  ========  ========  ========  =======
</TABLE>
    
 

<TABLE>   
<CAPTION>
                                      AS OF DECEMBER 31,               AS OF
                              --------------------------------------   MARCH
                                1992      1993      1994      1995    31, 1996
                              --------  --------  --------  --------  --------
                                             (IN THOUSANDS)
<S>                           <C>       <C>       <C>       <C>       <C>
BALANCE SHEETS DATA:
Cash, cash equivalents and
 securities available-for-
 sale.......................  $ 28,648  $ 27,452  $  9,131  $ 21,906  $ 19,403
Working capital.............    27,563    23,387     4,094    18,342    15,929
Total assets................    33,422    35,230    17,278    28,048    25,600
Long-term obligations, less
 current portion............       319     3,635     2,620     2,606     2,396
Deficit accumulated during
 development stage..........    (5,324)  (20,652)  (40,151)  (60,119)  (62,330)
Total stockholders' equity..    31,851    28,848    10,051    21,858    19,668
</TABLE>
    
- -------
(1) Although the Company was incorporated in 1991, it did not commence
    operations until February 1992. As a result, there were no financial
    statements for the Company for 1991.
(2) See Note 1 of Notes to Financial Statements for information concerning the
    computation of net loss per share.
 
                                      26

<PAGE>
 

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS
 
 OVERVIEW
 
  Since commencement of operations in 1992, the Company has been engaged in
research and development activities, including conducting preclinical studies
and clinical trials, and recruiting its scientific and management personnel,
establishing laboratory facilities and raising capital. The Company has not
received any revenue from the sale of products to date and does not expect to
receive revenues from the sale of products for at least the next several
years.
 
  As of March 31, 1996, the Company had incurred aggregate net losses of
approximately $62.3 million since its inception. The Company expects to
continue to incur significant additional operating losses over the next
several years as its research, development and clinical trial efforts expand.
Operating losses may fluctuate from quarter to quarter as a result of
differences in the timing of expenses incurred and revenues recognized. To
date, the Company's operations have been funded primarily from the sale of
equity securities, which have raised aggregate net proceeds of approximately
$80.8 million.
 
 RESULTS OF OPERATIONS
 
 Quarter ended March 31, 1996 compared with quarter ended March 31, 1995
   
  During the quarter ended March 31, 1996, the Company received a $3.0 million
non-refundable signing fee from Schering. The Company's agreement with
Schering terminated in April 1996. See "Item 1.--Business--Collaborations."
The Company did not have any operating revenue during the quarter ended
March 31, 1995.     
 
  Research and development expenses increased to approximately $3.5 million
for the quarter ended March 31, 1996 from approximately $3.3 million for the
quarter ended March 31, 1995. This increase was primarily due to expanded
research, development and clinical activities with respect to Lisofylline. The
Company expects that research and development expenses will increase
significantly in 1996 and future years as the Company expands its research and
development programs and undertakes additional clinical trials.
 
  General and administrative expenses increased to approximately $1.9 million
for the quarter ended March 31, 1996 from approximately $1.3 million for the
quarter ended March 31, 1995. This increase is primarily due to legal costs
associated with the Schering arrangement discussed above and to operating
expenses associated with supporting the Company's increased research,
development and clinical activities. General and administrative expenses are
expected to increase to support the Company's expected increase in research,
development and clinical trial efforts.
 
  Investment income principally comprises interest income from investment of
the Company's cash reserves. Interest expense results primarily from the
financing of laboratory and other equipment. Investment income net of interest
expense increased to approximately $164,000 for the quarter ended March 31,
1996 from a net interest expense of approximately $(18,000) for the quarter
ended March 31, 1995. This increase was primarily associated with interest
earnings on a higher average balance of cash reserves between the quarters.
 
 Year ended December 31, 1995 compared with year ended December 31, 1994
 
  Revenue from the BioChem Pharma collaboration totalled $100,000 in 1995, all
of which was received in the fourth quarter of 1995. The Company did not have
any operating revenue during 1994.
 
  Research and development expenses decreased to approximately $14.2 million
in 1995 from approximately $14.4 million in 1994. This decrease was primarily
due to a reduction in manufacturing costs associated with Lisofylline. This
decrease was partially offset by costs of approximately $1.2 million incurred
in connection with the purchase of all the intellectual property of Lipomed
Corporation in October 1995, which was accounted for as in-process research
and development expense.
 
 
                                      27

<PAGE>
 
  General and administrative expenses increased to approximately $6.5 million
in 1995 from approximately $5.3 million in 1994. This increase was primarily
due to operating expenses associated with supporting the Company's increased
research, development and clinical activities, including business development,
marketing studies and recruitment of additional personnel.
 
  Investment income net of interest expense increased to approximately
$658,000 in 1995 from approximately $152,000 in 1994. This increase was
associated with interest earnings on a higher average balance of cash reserves
resulting from a private placement of equity securities in 1995.
 
 Year ended December 31, 1994 compared with year ended December 31, 1993
 
  The Company did not have any revenue during 1994 or 1993.
 
  Research and development expenses increased to approximately $14.4 million
in 1994 from approximately $11.9 million in 1993. This increase was primarily
due to employment of additional research staff, increased costs related to
expanded research activities, and preclinical and manufacturing costs
associated with the Company's anti-cancer compound CT-2584. These increased
costs were partially offset by a reduction in preclinical and manufacturing
costs associated with the production of Lisofylline inventory used for
clinical trials.
 
  General and administrative expenses increased to approximately $5.3 million
in 1994 from approximately $4.1 million in 1993. This increase was primarily
due to hiring additional personnel and to operating expenses associated with
supporting the Company's increased research, development and clinical
activities.
 
  Investment income net of interest expense decreased to approximately
$152,000 in 1994 from approximately $586,000 in 1993. This decrease resulted
from a lower average balance of cash reserves during 1994 and increased
interest expense incurred during 1994 in connection with a secured note issued
in September 1993.
 
 LIQUIDITY AND CAPITAL RESOURCES
 
  The Company has financed its operations since inception through the sale of
equity securities, long-term obligations and convertible debt. As of March 31,
1996, the Company had raised aggregate net proceeds of approximately $83.8
million from such financing activities, including $30.5 million from the sale
of Convertible Preferred Stock in 1995, $49.3 million from the sale of Common
Stock in 1992 and 1993, and $850,000 from a bridge loan which was subsequently
converted to equity. In addition, the Company financed the purchase of
approximately $10.3 million of property and equipment through financing
agreements, of which approximately $3.1 million remained outstanding as of
March 31, 1996.
 
  The Company's principal sources of liquidity are its cash balances, cash
equivalents and securities available-for-sale, which totaled approximately
$19.4 million as of March 31, 1996. The Company invests in U.S. government
obligations and other highly rated liquid debt instruments.
 
  The Company expects that its capital requirements will increase as the
Company expands its research and development programs and undertakes
additional clinical trials. In connection with such expansion, the Company
expects to incur substantial expenditures for hiring additional management,
scientific and administrative personnel, for planned expansion of its
facilities, and for the purchase or lease of additional equipment.
   
  The Company does not expect to generate a positive cash flow from operations
for several years due to substantial additional research and development
costs, including costs related to drug discovery, preclinical testing,
clinical trials, manufacturing costs and operating expenses associated with
supporting such activities. CTI will require substantial funds to conduct its
existing and planned preclinical and clinical trials, to establish
manufacturing and marketing capabilities for any products it may develop, and
to continue research and     
 
                                      28

<PAGE>
 
   
development activities. CTI's current cash and cash equivalents will not be
sufficient to fund CTI's operations through the commercialization of its first
product. The Company expects that its existing capital resources, together
with the interest earned thereon, will enable the Company to maintain its
current and planned operations at least through the first quarter of 1997. No
assurance can be given that changes will not occur that will consume available
capital resources before such time. The Company will need to raise substantial
additional capital to fund its operations beyond such time. The Company's
future capital requirements will depend on, and could increase as a result of,
many factors, including continued scientific progress in its research and
development programs, the magnitude of such programs, the progress of
preclinical testing and clinical trials, the time and costs involved in
obtaining regulatory approvals, the costs involved in preparing, filing,
prosecuting, maintaining, enforcing and defending patent claims, competing
technological and market developments, the terms of any collaborative
arrangements that the Company may enter into, the ability of the Company to
establish research, development and commercialization arrangements pertaining
to the Company's products, the cost of establishing manufacturing facilities,
the cost of commercialization activities and the demand for the Company's
products if and when approved.     
   
  The Company intends to raise additional funds through additional equity or
debt financings, research and development financings, collaborative
relationships, or otherwise. Because of these long-term capital requirements,
CTI may seek to access the public or private equity markets whenever
conditions are favorable, even if it does not have an immediate need for
additional capital at that time. There can be no assurance that additional
financing will be available to CTI, or, if available, that it will be on
acceptable terms. If additional funds are raised by issuing equity securities,
further dilution to stockholders may result. If adequate funds are not
available, the Company may be required to delay, reduce the scope of, or
eliminate one or more of its research, development and clinical activities or
to seek to obtain funds through arrangements with collaborative partners or
others that may require the Company to relinquish rights to certain of its
technologies, product candidates or products that the Company would otherwise
seek to develop or commercialize itself. See "Item 1.--Business--Risk
Factors--History and Continuation of Losses; Early Stage of Development,"
"Item 1.--Business--Risk Factors--Need for Substantial Additional Funds" and
"Item 1.--Business--Risk Factors--Dependence on Others; Collaborators."     
   
  On April 26, 1996, CTI filed a registration statement with the Securities
and Exchange Commission (the "Commission") in connection with a planned
initial public offering (the "Offering") of the Company's Common Stock. Such
registration statement has not been declared effective by the Commission, and
on June 27, 1996 the Company announced that it was postponing the Offering
until further notice.     
   
  At March 31, 1996, the Company had net operating loss carryforwards of
approximately $59.5 million and research and development credit carryforwards
of approximately $1.7 million. These carryforwards begin to expire in 2007.
See Note 10 of Notes to Financial Statements.     
 
I
TEM 3.PROPERTIES.
 
  CTI leases approximately 57,500 square feet of space at 201 Elliott Avenue
West in Seattle, Washington for its executive office, laboratory and
administrative operations. The lease expires January 31, 2003, with two
consecutive five-year renewal options at the then prevailing market rent. The
average monthly expense for both the remainder of the first five years and
through to the expiration of the initial lease term is approximately $75,000
plus a pro rata share of service and utility costs and real property tax
increases.
 
                                      29

<PAGE>
 
ITEM 4. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.
   
  The following table sets forth certain information regarding beneficial
ownership of Common Stock, as of June 1, 1996 (including Common Stock issuable
upon conversion of all outstanding shares of Convertible Preferred Stock at
June 1, 1996), by (i) each stockholder known by the Company to be the
beneficial owner of more than 5% of its outstanding shares of Common Stock,
(ii) each of the Company's Directors and the Named Executive Officers, and
(iii) all Directors and executive officers as a group:     
 

<TABLE>   
<CAPTION>
      NAME AND ADDRESS            NUMBER OF SHARES     PERCENTAGE OF SHARES
     OF BENEFICIAL OWNER       BENEFICIALLY OWNED (1) BENEFICIALLY OWNED (1)
     -------------------       ---------------------- ----------------------
<S>                            <C>                    <C>                    <C>
Collinson Howe Venture 
 Partners (2)...............         3,308,433                12.30%
 1055 Washington Boulevard
 Stamford, CT 06901
Biotechnology Investment             2,849,254                10.61%
 Group, L.L.C. (3)...........
 c/o Collinson Howe Venture
 Partners
 1055 Washington Boulevard
 Stamford, CT 06901
Kummell Investments Limited(4)       2,845,748                10.60%
 c/o Morningside Group
 1188 Centre Street
 Newton Center, MA 02159
The International                    2,238,806                 8.34%
 Biotechnology Trust plc (5)
 c/o Rothschild Asset
 Management Limited
 Five Arrows House
 St. Swithen's Lane
 London, England EC4N 8NR
David H. Smith, M.D. (6).....        1,653,493                 6.16%
 c/o David Hamilton Smith 
 Investments, Inc.
 599 Lexington Avenue
 New York, NY 10022
James A. Bianco, M.D.** (7)..        1,165,642                 4.31%
Jack L. Bowman** (8).........           16,667                    *
Jeremy L. Curnock Cook** (9).        2,248,806                 8.37%
Wilfred E. Jaeger, M.D.**(10)           10,677                    *
Max E. Link, Ph.D.**.........           30,000                    *
David W. Martin** (11).......           10,000                    *
Terrence M. Morris** (12)....           10,000                    *
Phillip M. Nudelman, Ph.D.**            14,667                    *
 (13)........................
Jack W. Singer, M.D.** (14)..          747,471                 2.78%
Louis A. Bianco (15).........          488,293                 1.81%
Susan O. Moore (16)..........           33,167                    *
Maurice J. Schwarz, Ph.D.(17)           40,000                    *
All Directors and Executive
 Officers as a group
 (14 persons) (18)...........        4,829,820                17.63%
</TABLE>
    
 
                                      30

<PAGE>
 
- --------
 *  Less than 1%
 ** Denotes Director of the Company
   
(1) Beneficial ownership is determined in accordance with the rules of the
    Securities and Exchange Commission and generally includes voting or
    investment power with respect to securities. Shares of Common Stock
    subject to options or warrants currently exercisable or convertible, or
    exercisable or convertible within 60 days of June 1, 1996, are deemed
    outstanding for computing the percentage of the person holding such option
    or warrant but are not deemed outstanding for computing the percentage of
    any other person. Except as indicated in the footnotes to this table and
    pursuant to applicable community property laws, the persons named in the
    table have sole voting and investment power with respect to all shares of
    Common Stock beneficially owned.     
   
(2) Collinson Howe Venture Partners ("CHVP") is a venture capital investment
    management firm which is the managing member of Biotechnology Investment
    Group, L.L.C., a Delaware limited liability company ("BIG"), and is the
    investment advisor to Schroder Ventures Limited Partnership ("SVLP"),
    Schroder Ventures U.S. Trust ("SVUST") and Schroders Incorporated ("SI").
    As such, CHVP has or shares voting and investment power with respect to
    the shares held by BIG, SVLP, SVUST and SI and may be deemed to be the
    beneficial owner of such shares. The shares listed above consist of (i)
    2,849,254 shares of Common Stock (including 149,254 shares of Common Stock
    issuable upon conversion of 1,492.5374 shares of Convertible Preferred
    Stock) held by BIG, 231,642 shares of Common Stock (including 71,642
    shares of Common Stock issuable upon conversion of 716.418 shares of
    Convertible Preferred Stock) held by SVLP, 57,910 shares of Common Stock
    (including 17,910 shares of Common Stock issuable upon conversion of
    179.1045 shares of Convertible Preferred Stock) held by SVUST and 124,627
    shares of Common Stock (including 74,627 shares of Common Stock issuable
    upon conversion of 746.2687 shares of Convertible Preferred Stock) held by
    SI, and (ii) an additional 28,800, 7,200 and 9,000 shares of Common Stock
    issuable upon exercise of options beneficially owned by SVLP, SVUST and
    SI, respectively, pursuant to an agreement with Dr. Jaeger. See footnotes
    (3) and (10) below.     
   
(3) BIG is a limited liability company which was created to acquire, hold,
    protect, manage and dispose of equity, debt and derivative securities of
    biotechnology and other companies. 2,700,000 of the shares of Common Stock
    held by BIG were acquired in January 1995 from The Edward Blech Trust
    ("EBT"). The sole beneficiary of EBT is the minor child of David Blech, a
    founder, former director and stockholder of the Company. See "Item 7.--
    Certain Relationships and Related Transactions." The present members of
    BIG are (i) the managing member, CHVP, an investment management firm of
    which Jeffrey J. Collinson is President, sole director and majority
    stockholder, (ii) EBT, and (iii) Wilmington Trust Company ("WTC"), as
    voting trustee under a voting trust agreement (the "Voting Trust
    Agreement") among WTC, BIG and BIO Holdings L.L.C. ("Holdings"). The
    managing member of BIG is CHVP. The members of BIG share voting and
    investment power with respect to all shares held of record by BIG. All of
    the shares held of record by BIG have been pledged as collateral to
    Citibank, N.A. ("Citibank") to secure indebtedness owed to such bank. Each
    of Citibank and Holdings has the right pursuant to the Voting Trust
    Agreement to direct certain actions of WTC as a member of BIG. WTC, as the
    member holding a majority interest in Holdings, has the right to direct
    the actions of Holdings under the Voting Trust Agreement. Citibank,
    pursuant to a separate voting trust agreement among WTC, David Blech and
    Holdings, has the right to direct the actions of WTC as a member of
    Holdings with respect to the rights of Holdings under the Voting Trust
    Agreement. By virtue of their status as members of BIG, each of CHVP and
    EBT may be deemed to be the beneficial owner of all shares held of record
    by BIG. By virtue of his status as the majority owner and controlling
    person of CHVP, Jeffrey J. Collinson may also be deemed the beneficial
    owner of all shares held of record by BIG. Each of CHVP, EBT and Mr.
    Collinson disclaims beneficial ownership of shares held by BIG except to
    the extent of such person's proportionate interest therein.     
   
(4) Includes 2,761,194 shares of Common Stock issuable upon conversion of
    27,611.9412 shares of Convertible Preferred Stock.     
   
(5) Consists of 2,238,806 shares of Common Stock issuable upon conversion of
    22,388.061 shares of Convertible Preferred Stock beneficially owned by The
    International Biotechnology Trust plc, a company formed under the laws of
    England ("IBT") managed by Rothschild Asset Management Limited
    ("Rothschild"). Rothschild has or shares voting and investment power with
    respect to the shares held by IBT and may be deemed to be the beneficial
    owner of such shares. Mr. Curnock Cook is a director of IBT and
    Rothschild, and may be deemed to be the beneficial owner of any shares
    beneficially owned by each     
 
                                      31

<PAGE>
 
       
     of IBT and Rothschild. Mr. Curnock Cook disclaims beneficial ownership of
     shares beneficially owned by IBT and Rothschild except to the extent of
     his proportionate interest therein. See footnote (9) below.     
   
(6)  Includes 447,761 shares of Common Stock issuable upon conversion of
     4,477.6122 shares of Convertible Preferred Stock. Dr. Smith is a founder
     of CTI and served as Chairman of the Board of Directors from April 1992
     until his resignation on January 1, 1996.     
   
(7)  Includes 207,842 shares issuable upon exercise of options that are
     currently exercisable or exercisable within 60 days of June 1, 1996. Does
     not include 275,000 shares issuable upon exercise of options not yet
     vested. Such options vest in equal installments on December 5, 1996, 1997
     and 1998.     
   
(8)  Consists of 16,667 shares issuable upon exercise of options that are
     currently exercisable or exercisable within 60 days of June 1, 1996. Does
     not include 13,333 shares issuable upon exercise of options not yet
     vested. Such options vest in equal installments on May 22, 1997 and 1998.
           
(9)  Includes 2,238,806 shares of Common Stock beneficially owned by IBT. IBT
     is managed by Rothschild and Rothschild has or shares voting and
     investment power with respect to the shares held by IBT and may be deemed
     to be the beneficial owner of such shares. Mr. Curnock Cook is a director
     of IBT and Rothschild, and may be deemed to be the beneficial owner of any
     shares beneficially owned by each of IBT and Rothschild. Mr. Curnock Cook
     disclaims beneficial ownership of shares beneficially owned by IBT and
     Rothschild except to the extent of his proportionate interest therein.
     Also includes an immediately exercisable option to purchase 10,000 shares
     of Common Stock. See footnote (5) above and "Item 7.--Certain
     Relationships and Related Transactions."     
   
(10) Consists of 10,667 shares issuable upon exercise of options that are
     currently exercisable or exercisable within 60 days of June 1, 1996. Does
     not include 5.333 shares issuable upon exercise of options not yet
     vested. Such options vest on February 9, 1997. Also does not include
     45,000 shares issuable upon exercise of options beneficially owned by
     affiliates of CHVP pursuant to an agreement with Dr. Jaeger. Dr. Jaeger,
     a director of the Company, is a former partner at CHVP. Dr. Jaeger
     disclaims beneficial ownership of shares of Common Stock (including
     shares of Common Stock issuable upon conversion of shares of Convertible
     Preferred Stock) beneficially owned by affiliates of CHVP. See footnote
     (2) above.     
   
(11) Consists of an immediately exercisable option to purchase 10,000 shares
     of Common Stock.     
   
(12) Consists of an immediately exercisable option to purchase 10,000 shares
     of Common Stock.     
   
(13) Consists of 14,667 shares issuable upon exercise of options that are
     currently exercisable or exercisable within 60 days of June 1, 1996. Does
     not include 13,333 shares issuable upon exercise of options not yet
     vested. Such options vest in equal installments on May 22, 1997 and 1998.
            
(14) Includes 48,351 shares issuable upon exercise of options that are
     currently exercisable or exercisable within 60 days of June 1, 1996. Does
     not include 25,000 shares issuable upon exercise of options not yet
     vested. Such options vest in equal installments on December 5, 1996, 1997
     and 1998.     
   
(15) Includes 129,509 shares issuable upon exercise of options that are
     currently exercisable or exercisable within 60 days of June 1, 1996. Does
     not include 63,333 shares issuable upon exercise of options not yet
     vested. 3,333 of such options vest on December 20, 1996; and 60,000 of
     such options vest in equal installments on December 5, 1996, 1997 and
     1998.     
   
(16) Consists of 33,167 shares issuable upon exercise of options that are
     currently exercisable or exercisable within 60 days of June 1, 1996. Does
     not include 71,333 shares issuable upon exercise of options not yet
     vested. 1,333 of such options vest on December 20, 1996, and 70,000 of
     such options vest in equal installments on December 5, 1996, 1997 and
     1998.     
   
(17) Consists of 40,000 shares issuable upon exercise of options that are
     currently exercisable or exercisable within 60 days of June 1, 1996. Does
     not include 60,000 shares issuable upon exercise of options not yet
     vested. 20,000 of such options vest on June 1, 1997; and 40,000 of such
     options vest in equal installments on December 5, 1996, 1997 and 1998.
            
(18) Includes an aggregate of 545,310 shares of Common Stock issuable upon
     exercise of options that are currently exercisable or exercisable within
     60 days of June 1, 1996. See footnotes (7) through (17).     
 
                                      32

<PAGE>
 
ITEM 5.DIRECTORS AND EXECUTIVE OFFICERS.
   
  The directors and executive officers of CTI and their ages as of June 1,
1996 are as follows:     
 

<TABLE>   
<CAPTION>
          NAME                         AGE                       POSITION
          ----                         ---                       --------
<S>                                    <C>       <C>
Max E. Link, Ph.D.(1).................  55       Chairman of the Board of Directors and Director
James A. Bianco, M.D.(1)..............  39       President, Chief Executive Officer and Director
Jack W. Singer, M.D...................  53       Executive Vice President, Research
                                                    Program Chairman and Director
Louis A. Bianco.......................  43       Executive Vice President, Finance and Administration
Maurice J. Schwarz, Ph.D..............  56       Executive Vice President, Product Development
Robert A. Lewis, M.D. ................  51       Executive Vice President, Chief Scientific Officer
Susan O. Moore........................  47       Executive Vice President, Human Resource Development
Dalton Weekley........................  54       Managing Director, Project Planning and Controls
Jack L. Bowman(2).....................  63       Director
Jeremy L. Curnock Cook(1)(2)..........  46       Director
Wilfred E. Jaeger, M.D.(2)(3).........  40       Director
David W. Martin, Jr., M.D.............  55       Director
Terrence M. Morris(2)(3)..............  49       Director
Phillip M. Nudelman, Ph.D.(1)(3)......  60       Director

</TABLE>
    
- --------
(1) Member of the Executive Committee.
(2) Member of the Compensation Committee.
(3) Member of the Audit Committee.
   
  The Board of Directors of CTI is divided into three approximately equal
classes of Directors serving staggered three-year terms and until their
successors are elected and qualified. As a result, approximately one-third of
the total number of Directors will be elected every year. The current terms of
Drs. Bianco, Singer and Jaeger expire in 1997, the current terms of Dr.
Nudelman and Mr. Bowman expire in 1998, the current term of Mr. Curnock Cook
expires in 1998 or, if earlier, the first annual meeting following the
conversion of the Convertible Preferred Stock in accordance with its terms,
and the current terms of Drs. Link and Martin and Mr. Morris expire in 1999.
Executive Officers of CTI serve at the discretion of the Board of Directors.
Under CTI's Bylaws, the number of Directors constituting the entire Board of
Directors may be decreased or increased by majority action of either the Board
of Directors or the stockholders, but no decrease in the number of directors
may have the effect of shortening the term of any incumbent Director.
Currently, the Board of Directors has fixed the number of Directors at nine.
James A. Bianco and Louis A. Bianco are brothers. Mr. Curnock Cook was elected
as a Director by the holders of the Convertible Preferred Stock, who are
entitled to vote as a separate class to elect one Director to the Board of
Directors. See "Item 7.--Certain Relationships and Related Transactions."     
 
  MAX E. LINK, PH.D. Dr. Link joined the Board of Directors in July 1995 as
its Vice Chairman and has served as Chairman of the Board of Directors since
January 1, 1996. In addition, Dr. Link has held a number of executive
positions with pharmaceutical and healthcare companies. Most recently, he
served as Chief Executive Officer of Corange, Limited, from May 1993 until
June 1994. Prior to joining Corange, Limited, Dr. Link served in a number of
positions within Sandoz Pharma Ltd., including Chief Executive Officer, from
1990 until April 1992, and Chairman, from April 1992 until May 1993. Dr. Link
currently serves on the boards of directors of ACCESS Pharmaceuticals, Inc.,
Alexion Pharmaceuticals, Inc., Human Genome Sciences, Inc., Procept, Inc. and
Protein Design Labs, Inc. Dr. Link received his Ph.D. in Economics from the
University of St. Gallen.
 
 
                                      33

<PAGE>
 
  JAMES A. BIANCO, M.D. Dr. Bianco is the principal founder of CTI and has
been CTI's President and Chief Executive Officer since February 1992 and a
Director of CTI since the Company's inception in September 1991. Prior to
joining CTI, Dr. Bianco was an Assistant Professor of Medicine at the
University of Washington, Seattle, and an Assistant Member in the clinical
research division of the Fred Hutchinson Cancer Research Center ("FHCRC"), the
world's largest bone marrow transplant center. From 1990 to 1992, Dr. Bianco
was the director of the Bone Marrow Transplant Program at the Veterans
Administration Medical Center in Seattle. Dr. Bianco received his B.S. degree
in Biology and Physics from New York University and his M.D. from Mount Sinai
School of Medicine.
 
  JACK W. SINGER, M.D. Dr. Singer is a founder and Director of the Company and
currently serves as Executive Vice President, Research Program Chairman. He
has been a Director of CTI since the Company's inception in September 1991.
From April 1992 to July 1995, Dr. Singer was CTI's Executive Vice President,
Research and Development. Prior to joining the Company, Dr. Singer was
Professor of Medicine at the University of Washington and full Member of the
FHCRC. From 1975 to 1992, he was the Chief of Medical Oncology at the Veterans
Administration Medical Center in Seattle. In addition, from 1978 to 1992, he
served as director for the National Transplant Board for the Veterans
Administration. Dr. Singer has authored approximately 220 scientific
publications in the areas of cell biology, hematopoiesis and BMT. Prior to
joining the Company, he headed the Growth Factor Research Program at the
FHCRC. Dr. Singer received his B.A. degree in Mathematics from Columbia
College and his M.D. from State University of New York, Downstate Medical
College. His clinical training was performed at the University of Chicago and
at the University of Washington.
 
  LOUIS A. BIANCO. Mr. Bianco is a founder of the Company and has been the
Company's Executive Vice President, Finance and Administration since February
1, 1992, and a Director of the Company from its inception in September 1991 to
April 1992 and from April 1993 to April 1995. From January 1989 through
January 1992, Mr. Bianco was a Vice President at Deutsche Bank Capital
Corporation in charge of risk management. Mr. Bianco is a Certified Public
Accountant and received an M.B.A. from New York University.
 
  MAURICE J. SCHWARZ, PH.D. Dr. Schwarz has been the Company's Executive Vice
President, Product Development since May 1994. Dr. Schwarz held a variety of
product development positions at Ciba-Geigy for 26 years prior to joining CTI,
most recently as Vice President of Pharmaceutical and Analytical Development
and Chairman of the Development Operations Board at Ciba-Geigy Pharmaceuticals
Division.
   
  ROBERT A. LEWIS, M.D. Dr. Lewis has been the Company's Executive Vice
President, Chief Scientific Officer since April 1, 1996. Prior to joining CTI,
from September 1994 to May 1995 he was Senior Vice President and Director,
Preclinical Research and Development at Syntex-Roche. From February 1992 to
September 1994 he was President, Discovery Research at Syntex. From February
1986 to February 1992, he held various Senior and Executive Vice Presidential
offices at Syntex. While at Syntex, he held associate professorships at
Stanford University and at the University of California, San Francisco, where
he also held an adjunct professorship from 1992 to 1994. Prior to joining
Syntex, Dr. Lewis was Associate Professor of Medicine at Harvard Medical
School. Dr. Lewis received his M.D. from the University of Rochester and B.S.
degree in chemistry from Yale University.     
 
  SUSAN O. MOORE. Ms. Moore has been CTI's Executive Vice President, Human
Resource Development since July 1995. From March 1993 to July 1995, Ms. Moore
was CTI's Vice President of Human Resources. Prior to joining CTI, Ms. Moore
was self-employed as a compensation consultant. From 1991 to December 1992,
Ms. Moore was the Director of Human Resources of ICOS Corporation, a
biotechnology company. Prior to 1991, she was employed by Digital Equipment
Corporation as a human resources program manager for software engineering
worldwide.
 
  DALTON WEEKLEY. Mr. Weekley has been the Company's Managing Director,
Project Planning and Controls since July 1995. From April 1994 to July 1995,
Mr. Weekley was CTI's Director of Planning Support Services. Prior to joining
CTI, he was an Executive Director/Senior Consultant of Milestone Computing,
Inc., a management consulting firm.
 
                                      34

<PAGE>
 
  JACK L. BOWMAN. Mr. Bowman has been a Director of CTI since April 1995. From
1987 until January 1994, Mr. Bowman was a company group chairman at Johnson &
Johnson, having primary responsibility for a group of companies in the
diagnostic, blood glucose monitoring and pharmaceutical businesses. From 1980
to 1987, Mr. Bowman held various positions at American Cyanamid Company, most
recently as Executive Vice President. Mr. Bowman was a member of the Board of
Trustees of The Johns Hopkins University and serves on the Board of Directors
of NeoRx Corporation, CytRx Corporation, PharmaGenics, Inc. and Coating
Technologies International.
 
  JEREMY L. CURNOCK COOK. Mr. Curnock Cook has been a Director of CTI since
March 1995. He has been Head of the Rothschild Bioscience Unit and a director
of Rothschild Asset Management Limited since 1987. He is a director of several
British companies, including The International Biotechnology Trust, plc,
Biocompatibles International, plc, Therexsys, Ltd. and Vanguard Medica Group,
plc. He also serves on the Boards of Directors of Creative Biomolecules, Inc.,
Targeted Genetics, Corp. and Ribozyme, Inc. in the United States.
   
  WILFRED E. JAEGER, M.D. Dr. Jaeger has been a Director of CTI since
September 1992. He is a founding general partner of Three Arch Partners, a
venture capital firm which focuses on health care investments. Prior to
joining Three Arch Partners in 1993, he was a partner at Schroder Venture
Advisers (presently named Collinson Howe Venture Partners) and The Phoenix
Partners. Dr. Jaeger received his M.D. from the University of British Columbia
in Vancouver, B.C., Canada, in 1981. He practiced medicine for six years
before earning an M.B.A. from Stanford University. Dr. Jaeger is also a
director of Transitional Care of America.     
 
  DAVID W. MARTIN, JR., M.D. Dr. Martin has been a Director of CTI since July
1995. From January 1994 to April 1995, he was President of Chiron Therapeutics
and a Senior Vice President of Chiron Corporation. From 1991 through 1993, he
was an Executive Vice President of the DuPont Merck Pharmaceutical Company.
From 1982 to 1990, Dr. Martin held various positions at Genentech, Inc., most
recently as Senior Vice President Research and Development. He is currently
President, Chief Executive Officer and a director of Lynx Therapeutics, Inc.
and is also a director of Varian Associates, Inc.
 
  TERRENCE M. MORRIS. Mr. Morris has been a Director of CTI since July 1995.
He is the Chief Executive Officer of Morningside Ventures, which coordinates
and manages a private venture capital portfolio for Kummell Investments
Limited, an international investment concern based in Hong Kong. Mr. Morris
has served as Chief Executive Officer of Morningside Ventures since 1991. His
previous positions include product line manager at Baxter Healthcare, and
strategy consultant with the Boston Consulting Group. Mr. Morris is a director
of several privately held companies.
 
  PHILLIP M. NUDELMAN, PH.D. Dr. Nudelman has been a Director of CTI since
March 1994. He is the President and Chief Executive Officer of Group Health
Cooperative of Puget Sound, a health maintenance organization. Dr. Nudelman
has served as Chief Executive Officer and President of Group Health
Cooperative since 1990. Dr. Nudelman received his B.S. degree in Microbiology,
Zoology and Pharmacy from the University of Washington, and holds an M.B.A.
and a Ph.D. in Health Systems Management from Pacific Western University. Dr.
Nudelman is a member of the American Hospital Association House of Delegates,
Regional Policy Board, and chairs the Governing Counsel for Health Care
Systems. Dr. Nudelman serves on the Boards of Directors of Advanced Technology
Laboratories, Inc., SpaceLabs Medical, Inc. and Cytran Ltd.
 
SCIENTIFIC ADVISORY BOARD
 
  CTI has a Scientific Advisory Board and plans to make arrangements from time
to time with other scientists to work with CTI's management and the Scientific
Advisory Board. The Scientific Advisory Board is chaired by Dr. Michael R.
Hanley. Scientific Advisory Board members are expected to meet as a board with
management and key scientific employees of CTI on a semi-annual basis and in
smaller groups or individually from time to time on an informal basis. The
Scientific Advisory Board members assist CTI in identifying scientific and
product development opportunities, in reviewing with management the progress
of CTI's specific projects, and in recruiting and evaluating CTI's scientific
staff. Members of CTI's Scientific Advisory Board are leaders in the fields of
immunology, cell and molecular biology, and synthetic and medicinal chemistry.
 
                                      35

<PAGE>
 
  Current Members of CTI's Scientific Advisory Board include:
 
  MICHAEL R. HANLEY, PH.D. Dr. Hanley is the Chairman of CTI's Scientific
Advisory Board. He is a Professor, Department of Biological Chemistry, at the
University of California, Davis School of Medicine. He is a noted authority in
cell communication processes and proto-oncogenes, as well as an expert in
phosopholipid signaling mechanisms in the central nervous system focusing on
regulation of neurotransmitter receptors. Dr. Hanley has authored over 80
manuscripts and has served as an editorial member for several journals,
including Molecular and Cellular Neurobiology and Nature.
 
  EDWIN KREBS, M.D. Dr. Krebs is a Professor Emeritus, Department of
Pharmacology and Biochemistry, at the University of Washington in Seattle, and
a Senior Investigator Emeritus, at the Howard Hughes Medical Institute. He is
a recognized authority on the mechanisms of action of second messengers,
including protein kinases and phosphorylation reactions. He is the recipient
of numerous awards and honors and has authored 297 manuscripts. In 1992, Dr.
Krebs was awarded the Nobel Prize in Physiology of Medicine for his work on
second messenger pathways.
 
  WOUTER H. MOOLENAAR, PH.D. Dr. Moolenaar is the Head of the Division of
Cellular Biochemistry at the Netherlands Cancer Institute. He is an expert in
phospholipid signal transduction, focusing on their role in responses to
growth factors and in cell differentiation. He has authored over 60
manuscripts and several chapters pertaining to the role of phosphatidic acid
in cell signaling.
 
  KLAUS RESCH, M.D. Dr. Resch is a noted authority in membrane phospholipid
biochemistry, their role in immune system activation and inflammation. He is a
Professor and the Head of the Institute for Molecular Pharmacology of the
Hanover Medical School, Medizinische Hochschule Hannover, and a former Vice
President of the German Society for Pharmacology and Toxicology. He has
authored over 250 scientific publications.
 
  BRUCE BEUTLER, M.D. Dr. Beutler is an Associate Professor of Medicine at the
University of Texas Southwestern Medical Center and an Associate Investigator
at the Howard Hughes Medical Institute. He is internationally recognized for
his work on Tumor Necrosis Factor ("TNF") and has authored over 95
manuscripts, reviews and books on TNF, its characterization, signaling,
mechanisms of action and activity in a variety of preclinical and clinical
settings. Dr. Beutler serves as the President of the International Congress on
TNF and Related Cytokines and Consulting editor for Journal of Clinical
Investigation.
 
  IRWIN M. ARIAS, M.D. Dr. Arias is a Professor and Chairman of the Department
of Physiology at Tufts University School of Medicine. He is a noted authority
in the physiology of multi-drug resistance (mdr) proteins. He is the recipient
of numerous awards and honors.
 
  CTI has entered into consulting agreements with each of Drs. Hanley, Krebs,
Moolenaar, Resch, Beutler and Arias. These agreements generally have a three-
year term and may be terminated by either party upon 30 days' written notice.
These agreements also generally restrict the consultant from competing with
CTI during the term of the agreement. These agreements contain provisions
prohibiting the disclosure of confidential information to anyone outside of
CTI and require disclosure to CTI of ideas, developments, discoveries or
inventions conceived during consulting and assignment to CTI of proprietary
rights to such matters related to the business and technology of CTI. Each
consultant is required to serve on CTI's Scientific Advisory Board and provide
such other consulting services as CTI may reasonably request. Each Scientific
Advisory Board member is paid an annual fee and is granted an option to
purchase Common Stock.
 
CLINICAL ADVISORY BOARD
 
  CTI has a Clinical Advisory Board which meets with CTI's management and the
Scientific Advisory Board not less than three times per year and in smaller
groups or individually from time to time on an informal basis. The Clinical
Advisory Board members assist CTI in determining its clinical regulatory
strategy and trial results and identifying optimal indications for its
products. Members of CTI's Clinical Advisory Board are leaders in the fields
of hematology, oncology, immunology, cell and molecular biology, critical care
and medicinal chemistry.
 
                                      36

<PAGE>
 
  Current members of CTI's Clinical Advisory Board include:
 
  E. DONNALL THOMAS, M.D. Dr. Thomas is the Chairman of CTI's Clinical
Advisory Board. He is the former Associate Director of Clinical Research and
presently a Professor Emeritus at the FHCRC. Dr. Thomas was a founding Member
of the FHCRC. His research has spanned a wide array of fields from radiation
biology to developmental immunology, and from cancer causing genes to gene
transfer therapies. Dr. Thomas is often referred to as the "father" of BMT.
For his pioneering work in BMT, Dr. Thomas was awarded the Nobel Prize for
Medicine in 1990. His work demonstrated the feasibility and clinical
effectiveness of marrow transplant therapy, and he has contributed to the
training of a significant majority of the physicians now performing
transplants worldwide. Among the other honors awarded to Dr. Thomas in
recognition of his outstanding medical research are the American Cancer
Society Award for Distinguished Service in Basic Research and the Kettering
Prize of the General Motors Cancer Research Foundation. Dr. Thomas received
his medical degree from Harvard Medical School and is currently Professor of
Medicine at the University of Washington School of Medicine. He is a member of
the U.S. National Academy of Sciences.
 
  FREDERICK APPELBAUM, M.D. Dr. Appelbaum is the Director of Clinical Research
and Senior Vice President of the FHCRC. He is a recognized authority in the
treatment of patients with leukemia and lymphoma. He serves on several
editorial boards and national committees, including the FDA Advisory Committee
on Biologics; is Chairman of the Southwest Oncology Group Leukemia Committee;
and serves on the Board of Directors of the American Society for Blood and
Marrow Transplantation. He has authored more than 450 manuscripts.
 
  THOMAS E. STARZL, M.D., PH.D. Dr. Starzl is the Director of the
Transplantation Institute of the University of Pittsburgh. He is a noted
expert in the field of immunology and solid organ transplantation. He is the
recipient of numerous awards and was founding President of several prestigious
societies, including the American Society of Transplant Surgeons. He has
authored approximately 1,400 manuscripts and more than 160 book chapters.
 
  THOMAS A. RAFFIN, M.D. Dr. Raffin is the Chief of the Division of Pulmonary
and Critical Care Medicine of the Stanford University Medical Center. He is a
recognized authority on mechanisms of ALI, MOF and SIRS among critically ill
patients. He serves on numerous editorial boards and societies, including the
Editorial Board of Chest and Critical Care Medicine, the American Thoracic
Society and the Society of Critical Care Medicine. He has authored more than
175 manuscripts and 60 chapters.
 
  O. MICHAEL COLVIN, M.D. Dr. Colvin is the Director of the Duke Comprehensive
Cancer Center at Duke University Medical Center. Dr. Colvin is an expert in
therapeutic drug modeling and rational drug design. His work led to the
discovery of several chemotherapeutic agents. He was previously Chief of the
Division of Pharmacology and Experimental Therapeutics at The Johns Hopkins
Oncology Center. He has authored over 100 manuscripts.
 
  WILLIAM P. PETERS, M.D., PH.D. Dr. Peters is a Director of the Meyer L.
Prentis Comprehensive Cancer Center of Metropolitan Detroit and the President
and Chief Executive Officer of the Karmanos Cancer Institute. He is a
recognized leader in the use of dose-intensive chemotherapy regimens with
peripheral blood stem cell support as a cost-effective approach to the
treatment of cancer. He has published extensively and is the recipient of many
honors and awards, among them the American Cancer Society Clinical Fellowship
Award and the R. Wayne Rundles Award for Excellence in Cancer Research.
 
  KAREN H. ANTMAN, M.D. Dr. Antman is the Chief of the Division of Medical
Oncology, College of Physicians & Surgeons of Columbia University. Dr. Antman
is an expert in emerging treatment strategies for solid tumors, notably breast
cancer. From 1994 to 1995 she served as President of the American Society of
Clinical Oncology (ASCO). From 1993 to 1994 she was program committee chair of
the American Association for Cancer Research (AACR). She is on the editorial
board of several prestigious journals, including Associate Editor of The New
England Journal of Medicine. She has authored over 100 manuscripts and
textbooks.
 
                                      37

<PAGE>
 
  MERLE A. SANDE, M.D. Dr. Sande is the Chief of Medical Services at San
Francisco General Hospital and Vice Chairman of Medicine at the University of
California, San Francisco. He is a noted authority in infectious disease and
serves on the editorial boards of several journals, including Journal of
Infectious Disease and Infection and Immunity. He is a member of the AIDS Task
Force and is the Chairman of the AIDS Subcommittee of the Infectious Disease
Society of America.
 
  JOHN E. REPINE, M.D. Dr. Repine is the Director of the Webb-Waring Institute
for Biomedical Research and a Professor of Medicine at the School of Medicine,
University of Colorado Health Sciences Center. He is a recognized expert on
oxygen free radical tissue damage, inflammation, and lung injury. He is the
recipient of numerous awards and honors and is a scientific reviewer for
several journals, including Science and The New England Journal of Medicine.
He has authored over 140 manuscripts and 30 scientific chapters.
 
  H. FRANKLIN BUNN, M.D. Dr. Bunn is the Director of the Hematology Division
of the Brigham and Women's Hospital and Professor of Medicine at Harvard
Medical School. His research interest focuses on blood cell production and
regulation. He is the recipient of numerous awards and honors and is Chairman
of the Advisory Committee of the American Society of Hematology.
 
  MARK GROUDINE, M.D., PH.D. Dr. Groudine is a member in the Division of Basic
Sciences and Program Head for Molecular Medicine, FHCRC, and Professor of
Radiation Oncology, University of Washington School of Medicine. He is a noted
authority on molecular regulation of cancer cell growth. Dr. Groudine has
authored over 80 manuscripts and is the recipient of several awards for major
contributions in the fields of Hematology and Oncology.
   
  MILO GIBALDI, PH.D. Dr. Gibaldi is the Gibaldi Endowed Professor of
Pharmaceutics of the School of Pharmacy at the University of Washington, with
past faculty appointments at Columbia University and the State University of
New York at Buffalo. His expertise in drug metabolism has led to
consultantships with such pharmaceutical firms as Hoffman-LaRoche, Ciba-Geigy
and Glaxo. Dr. Gibaldi has also served on the U.S. Food and Drug
Administration's Panel on Generic Drugs. His research has focused on
gastrointestinal absorption of drugs and the development of stable
formulations for therapeutic compounds. Dr. Gibaldi received both his B.S. in
pharmacy and his Ph.D. in pharmacokinetics from Columbia University.     
 
  CTI has entered into consulting agreements with each member of the Clinical
Advisory Board. These agreements generally have a three-year term and may be
terminated by either party upon 30 days' written notice. These agreements also
generally restrict the consultant from competing with CTI during the term of
the agreement. These agreements contain provisions prohibiting the disclosure
of confidential information to anyone outside of CTI and require disclosure to
CTI of ideas, developments, discoveries or inventions conceived during
consulting and assignment to CTI of proprietary rights to such matters related
to the business and technology of CTI. Each consultant is required to serve on
CTI's Clinical Advisory Board and provide such other consulting services as
CTI may reasonably request. Each Clinical Advisory Board Member is paid an
annual fee and is granted an option to purchase Common Stock.
 
                                      38

<PAGE>
 
ITEM 6.EXECUTIVE COMPENSATION.
   
COMPENSATION     
 
  Summary Compensation Table. The following table sets forth all compensation
paid for the year ended December 31, 1995 to the Company's Chief Executive
Officer and the four other most highly compensated executive officers during
fiscal year 1995 (collectively, the "Named Executive Officers"):
 

<TABLE>   
<CAPTION>
                                                                    LONG-TERM
                                                                 COMPENSATION(1)
                                 ANNUAL COMPENSATION                 AWARDS
                         ----------------------------------- -----------------------
                                                                          SECURITIES      ALL
                                                  OTHER       RESTRICTED  UNDERLYING     OTHER
        NAME AND                              ANNUAL COMPEN-    STOCK      OPTIONS/     COMPEN-
   PRINCIPAL POSITION    SALARY ($) BONUS ($) SATION ($)(2)  AWARD(S) ($)  SARS (#)    SATION ($)
   ------------------    ---------- --------- -------------- ------------ ----------   ----------
<S>                      <C>        <C>       <C>            <C>          <C>          <C>
James A. Bianco, M.D....  315,984       --          --           (3)       482,842(4)     7,402(5)
 President and Chief
 Executive Officer
Jack W. Singer, M.D. ...  248,976       --          --           (3)        73,351(4)     9,762(5)
 Executive Vice
 President, Research
 Program Chairman
Louis A. Bianco.........  232,195       --          --           --        192,842(4)     6,772(5)
 Executive Vice
 President, Finance and
 Administration
Maurice J. Schwarz,       187,500       --        8,200(6)       --        100,000(4)    45,802(6)
 Ph.D...................
 Executive Vice
 President, Product
 Development
Susan O. Moore..........  113,551    20,000         --           --        104,500(4)     1,432(5)
 Executive Vice
 President, Human
 Resource Development
</TABLE>
    
- --------
(1) The Company did not make any long-term incentive plan payments to any of
    the Named Executive Officers in 1995.
(2) Other annual compensation in the form of perquisites and other personal
    benefits has been omitted where the aggregate amount of such perquisites
    and other personal benefits constituted the lesser of $50,000 or 10% of
    the total annual salary and bonus for the Named Executive Officer for
    1995.
   
(3) Shares of restricted Common Stock are subject to repurchase at original
    issuance cost in the event that CTI terminates such individual's
    employment for cause or such individual voluntarily terminates his
    employment without cause. Such restricted Common Stock is eligible to
    receive dividends, although the Company has not declared or paid dividends
    on the Common Stock. As of December 31, 1995, Dr. Bianco held 129,813
    shares of restricted Common Stock with an aggregate value of $434,874, and
    Dr. Singer held 86,843 shares of restricted Common Stock with an aggregate
    value of $290,924. Dr. Bianco's shares were no longer subject to
    forfeiture on February 1, 1996 and Dr. Singer's shares were no longer
    subject to forfeiture on April 1, 1996. All of these shares were purchased
    at the same price as was paid at the time for unrestricted shares.     
   
(4) In April 1995, the Board of Directors approved the repricing of
    outstanding options to $3.35 per share by exchanging such outstanding
    options for a fewer number of options pursuant to a Black-Scholes formula.
    All other terms and conditions of the options remained unchanged. Grants
    for the year ended December 31, 1995 include options which were initially
    granted in prior years and have been repriced and exchanged for a fewer
    number of options in 1995 as follows: Dr. Bianco, 225,000 options were
    repriced and exchanged for 202,500 options; Dr. Singer, 50,000 options
    were repriced and exchanged for 45,000 options; Mr. Bianco, 150,000
    options were repriced and exchanged for 127,500 options; Dr. Schwarz,
    75,000 options were repriced and exchanged for 60,000 options; and Ms.
    Moore, 40,000 options were repriced and exchanged for 34,500 options.     
(5) Represents reimbursement for long-term disability insurance premiums.
   
(6) All other compensation represents the amount of loan principal forgiven in
    1995 in connection with Dr. Schwarz's relocation to the Seattle area.
    Other annual compensation represents amounts reimbursed for the payment of
    income taxes on the reimbursement of Dr. Schwarz's relocation expenses in
    1994. See "-- Employment Agreements."     
 
                                      39

<PAGE>
 
  Options Granted in Last Fiscal Year. The following table sets forth for each
of the Named Executive Officers the number of options granted during the year
ended December 31, 1995 and the potential realizable value of such grants:
 

<TABLE>   
<CAPTION>
                                      INDIVIDUAL GRANTS
                         --------------------------------------------
                                                                      POTENTIAL REALIZABLE
                                                                        VALUE AT ASSUMED
                          NUMBER OF  % OF TOTAL                           ANNUAL RATES
                         SECURITIES   OPTIONS                            OF STOCK PRICE
                           UNDER-    GRANTED TO                         APPRECIATION FOR
                            LYING    EMPLOYEES   EXERCISE                OPTION TERM(3)
                           OPTIONS   IN FISCAL    PRICE    EXPIRATION ---------------------
          NAME           GRANTED (1)  YEAR (%)  ($/SH) (2)    DATE     5% ($)     10% ($)
          ----           ----------- ---------- ---------- ---------- --------- -----------
<S>                      <C>         <C>        <C>        <C>        <C>       <C>
James A. Bianco.........   202,500**     9.6       3.35     09/23/02    276,291     643,626
                             5,342       *         3.35     04/21/05     11,259      28,522
                           275,000      13.0       3.35     12/05/05    579,590   1,468,280
Jack W. Singer..........    45,000**     2.1       3.35     09/23/02     61,398     143,028
                             3,351       *         3.35     04/21/05      7,063      17,892
                            25,000       1.2       3.35     12/05/05     52,690     133,480
Louis A. Bianco.........    67,500**     3.2       3.35     09/23/02     92,097     214,542
                            60,000**     2.8       3.35     12/20/03     96,000     229,872
                             5,342       *         3.35     04/21/05     11,259      28,522
                            60,000       2.8       3.35     12/05/05    126,456     320,352
Maurice J. Schwarz......    60,000**     2.8       3.35     02/24/04    110,856     272,952
                            40,000       1.9       3.35     12/05/05     84,304     213,568
Susan O. Moore..........    22,500**     1.1       3.35     04/26/03     30,699      71,514
                            12,000**     *         3.35     12/20/03     16,373      38,141
                            70,000       3.3       3.35     12/05/05    147,532     373,744
</TABLE>
    
- --------
 * Less than one percent.
** Granted pursuant to the option repricing described in Note (1) below.
   
(1) Options were granted under the 1994 Equity Incentive Plan (the "1994
    Plan"). In April 1995, the Board of Directors approved the repricing of
    outstanding options to $3.35 per share by exchanging such outstanding
    options for a fewer number of options pursuant to a Black-Scholes formula.
    All other terms and conditions of the options remained unchanged.     
(2) Stock options were granted at an exercise price equal to 100% of the
    estimated fair value of the Company's Common Stock, as determined by the
    Board of Directors on the date of grant.
(3) Potential realizable value is based on the assumption that the Common
    Stock appreciates at the annual rates shown (compounded annually) from the
    date of grant until the expiration of the option term. These assumed rates
    of appreciation are mandated by the rules of the Securities and Exchange
    Commission and do not represent the Company's estimate or projection of
    the future Common Stock price. There can be no assurance that any of the
    values reflected in this table will be achieved.
 
 
                                      40

<PAGE>
 
  Aggregated Option Exercises in Latest Fiscal Year and Fiscal Year-End Option
Values. The following table sets forth for each of the Named Executive
Officers, the fiscal year-end number and value of unexercised options. No
options were exercised by any of the Named Executive Officers during 1995.
 

<TABLE>   
<CAPTION>
                               NUMBER OF SECURITIES      VALUE OF UNEXERCISED
                                    UNDERLYING           IN-THE-MONEY OPTIONS
                              UNEXERCISED OPTIONS AT      AT FISCAL YEAR-END
                                FISCAL YEAR-END (#)           1995 (1)($)
                             ------------------------- -------------------------
            NAME             EXERCISABLE UNEXERCISABLE EXERCISABLE UNEXERCISABLE
            ----             ----------- ------------- ----------- -------------
<S>                          <C>         <C>           <C>         <C>
James A. Bianco.............   207,842      275,000             0             0
Jack W. Singer..............    48,351       25,000             0             0
Louis A. Bianco.............   129,509       63,333             0             0
Maurice J. Schwarz..........    20,000       80,000             0             0
Susan O. Moore..............    25,667       78,833             0             0
</TABLE>
    
- --------
(1) Based on the estimated fair value of the underlying securities at December
    31, 1995, the fiscal year end, no options were "in-the-money."
 
COMPENSATION OF DIRECTORS
 
  Directors who are also employees of the Company are not paid an annual
retainer nor compensated for serving on the Board. Non-employee Directors are
paid $2,000 per meeting of the Board or committees, up to a maximum of $10,000
per Director each calendar year. All Directors are reimbursed for their
expenses incurred in attending Board meetings. In addition, each non-employee
Director is entitled to certain automatic option grants under the 1994 Plan.
See "--Stock Option Plans."
 
EMPLOYMENT AGREEMENTS
 
  Dr. Bianco, President and Chief Executive Officer, has a five-year
employment agreement with CTI, effective February 1, 1992. The agreement
provides that Dr. Bianco initially would receive an annual base salary of
$170,900, subject to annual increases in proportion to increases in the
Consumer Price Index ("CPI"), plus 10% of the CPI-adjusted annual base salary,
or such greater amount as the Board of Directors shall determine. Effective
January 1, 1996, CTI's Board of Directors established a new annual base salary
for Dr. Bianco for 1996 of $358,032. The agreement provides that, in the event
that CTI terminates Dr. Bianco's employment without cause or Dr. Bianco
terminates his employment for cause, CTI shall, at such time, pay Dr. Bianco
an amount equal to the total base salary otherwise payable through the
expiration of the term of the agreement or six months' base salary, whichever
is greater, and shall continue to provide certain benefits through the term of
the agreement. The employment agreement restricts Dr. Bianco from competing
with CTI for the term of the agreement and for two years after termination of
his employment with CTI, unless CTI shall have terminated Dr. Bianco's
employment without cause or Dr. Bianco shall have terminated his employment
for cause.
 
  Dr. Singer, Executive Vice President, Research Program Chairman, has a four-
year employment agreement with CTI, effective April 1, 1992. The agreement
provides that Dr. Singer initially would receive an annual base salary of
$157,775, subject to annual increases in proportion to increases in the CPI,
plus 10% of the CPI-adjusted annual base salary, or such greater amount as the
Board of Directors shall determine. Effective January 1, 1995, CTI's Board of
Directors established a new annual base salary for Dr. Singer for 1995 of
$248,973. The agreement provides that, in the event that Dr. Singer is
terminated by CTI without cause, CTI shall continue to pay Dr. Singer his
monthly base salary and benefits through the earlier of the expiration of the
term of the agreement or such time as Dr. Singer violates the terms of the
covenant not to compete contained in the agreement. In the event that Dr.
Singer terminates his employment for cause, CTI shall continue to pay Dr.
Singer his monthly base salary and benefits through the expiration of the term
of the agreement. The employment agreement restricts Dr. Singer from competing
with CTI for the term of the agreement and for two years after his termination
of employment with CTI.
 
                                      41

<PAGE>
 
  Mr. Bianco, Executive Vice President, Finance and Administration, entered
into a three-year employment agreement with CTI, effective February 1, 1992,
which agreement was extended for an additional period of three years to expire
January 31, 1998 by a letter agreement dated May 27, 1994. The agreement
provides that Mr. Bianco initially would receive an annual base salary of
$154,500, subject to annual increases in proportion to increases in the CPI,
plus 10% of the CPI-adjusted annual base salary, or such greater amount as the
Board of Directors shall determine. Effective January 1, 1996, CTI's Board of
Directors established a new annual base salary for Mr. Bianco for 1996 of
$263,088. The agreement provides that, in the event that CTI terminates Mr.
Bianco's employment without cause or Mr. Bianco terminates his employment for
cause, CTI shall, at such time, pay Mr. Bianco an amount equal to the total
base salary otherwise payable through the expiration of the term of the
agreement or six months' base salary, whichever is greater, and shall continue
to provide certain benefits through the term of the agreement.
 
  Dr. Schwarz, Executive Vice President, Product Development, entered into a
two-year employment agreement with CTI effective May 2, 1994, which is
renewable automatically for successive one-year terms subject to certain
termination provisions contained in the agreement. The agreement provides that
Dr. Schwarz initially would receive an annual base salary of $187,500, subject
to periodic increases based on performance. In the event CTI terminates Dr.
Schwarz's employment without cause, CTI shall pay Dr. Schwarz such amounts
owing for the remaining term of the agreement. The agreement further provides
that in connection with his relocation, Dr. Schwarz be reimbursed for capital
loss on the sale of his former residence in the form of a forgivable loan in
an amount not to exceed $150,000. The loan shall be forgiven in three annual
installments, subject to Dr. Schwarz's continued employment with CTI, with any
unforgiven portion becoming immediately due and payable within six months of
any termination of Dr. Schwarz's employment.
       
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
   
  During the last completed fiscal year, the Compensation Committee consisted
of Dr. Jaeger and Messrs. Curnock Cook and Bowman. None of these individuals
was at any time during the last completed fiscal year, or at any other time,
an officer or employee of the Company. In March 1995, an affiliate of Mr.
Curnock Cook and Rothschild Asset Management Limited purchased 22,388.061
shares of Convertible Preferred Stock, for an aggregate purchase price of
$7,500,000, in the Company's 1995 Private Placement. The holders of the
outstanding shares of Convertible Preferred Stock voting as a separate class
are entitled to elect one Director to the Board of Directors. At the 1996
Annual Meeting of Stockholders Mr. Curnock Cook was elected as a Director by
the holders of the outstanding shares of Convertible Preferred Stock voting as
a separate class. See "Item 7.--Certain Relationships and Related
Transactions."     
 
STOCK OPTION PLANS
   
  In January 1994 the Board of Directors adopted, and in February 1994 the
stockholders of the Company approved, the Company's 1994 Equity Incentive Plan
(the "1994 Plan"). A total of 2,039,400 shares of Common Stock were initially
reserved for issuance under the 1994 Plan and a predecessor plan, the
Company's 1992 Stock Option Plan (the "1992 Plan"). In May 1995 and April 1996
the stockholders of the Company approved the adoption of amendments to the
1994 Plan to increase the aggregate number of shares authorized for issuance
thereunder by 864,105 shares and 1,775,000 shares, respectively, bringing the
total number of shares reserved under the 1994 Plan to 4,678,505 shares of
Common Stock. As of June 1, 1996, 23,055 options have been exercised, 10-year
options to purchase 2,961,624 shares were granted and outstanding, and options
to purchase 1,693,826 shares of Common Stock remained available for future
grants under the 1994 Plan.     
 
  The 1994 Plan provides for (a) the grant of incentive stock options
("ISOs"), nonstatutory stock options ("NSOs") and stock appreciation rights
("SARs"), (b) the award of stock bonuses, (c) the sale of stock, and (d) any
other equity-based or equity-related awards which the plan administrator
determines to be consistent with the purpose of the 1994 Plan and the
interests of the Company to employees (including officers) and independent
consultants. The 1994 Plan also provides for the automatic grant of NSOs to
non-employee Directors pursuant to
 
                                      42

<PAGE>
 
the formula described below. The 1994 Plan supersedes the 1992 Plan, pursuant
to which the Board of Directors was authorized to issue ISOs and NSOs upon
terms and conditions similar to the 1994 Plan. Options granted under the 1992
Plan remain valid under the terms of the 1992 Plan. The number of shares
available for future grants under the 1994 Plan will be increased by the
number of shares for which options granted under the 1992 Plan expire,
terminate or are canceled.
 
  The 1994 Plan is administered by the Compensation Committee of the Board of
Directors (the "Committee"). The Committee determines the persons to whom
awards will be made, the exercise or purchase price of each award, the number
of shares to be covered by each option, the term of each option, the times at
which each award may be exercised, and whether each option granted under the
1994 Plan is an ISO or a NSO. The exercise price of ISOs and NSOs granted by
the Committee must be at least 100% of the fair market value of the underlying
shares on the date of the grant, except that the exercise price of ISOs
granted to an optionee holding more than 10% of the combined voting power of
all classes of the Company's stock ("10% Stockholders") must be at least 110%
of the fair market value of the underlying shares on the date of the grant.
The Committee sets the vesting schedule for and the term of options granted
under the 1994 Plan, subject to the limitations that (i) options granted to
directors and officers of the Company may not be exercised within six months
after the grant thereof, (ii) the term of ISOs may not exceed 10 years, and
(iii) the term of ISOs granted to 10% Stockholders may not exceed five years.
The Committee may also advance the lapse of any waiting period, accelerate any
exercise date, waive or modify any restriction with respect to an award or
give an employee an election to surrender an existing award in exchange for
the grant of a new award.
 
  Options granted under the 1994 Plan are nontransferable. In the event of the
death or other termination of an optionee's employment with the Company, the
1994 Plan provides that the optionee's options may be exercised for a period
of three months to one year thereafter. The 1994 Plan also provides that upon
any termination of employment, the Committee may extend the exercise period
for any period up to the expiration date of the option and may increase the
portion of the option that is exercisable.
 
  The purchase price for shares of Common Stock purchased on exercise of
options granted under the 1994 Plan must be paid in cash, including cash that
may be the proceeds of a loan from the Company or, with the consent of the
Committee, in whole or in part in shares of Common Stock of the Company. With
the consent of the Committee, an optionee may request the Company to apply the
shares to be received on exercise of a portion of an option to satisfy the
exercise price for additional portions of the option.
   
  Under the 1994 Plan, each non-employee Director is automatically granted a
10-year, fully vested nonstatutory stock option to purchase 10,000 shares of
Common Stock upon his or her election to the Board of Directors for the first
time. In addition, each non-employee Director is automatically granted a 10-
year, fully vested nonstatutory stock option to purchase 6,667 shares of
Common Stock on each anniversary of his or her immediately preceding election
to the Board of Directors. The exercise price of such options is 100% of the
fair market value of the shares of Common Stock on the date of grant and such
options have a term of 10 years from the date of grant.     
 
  The Committee may grant SARs either alone or in connection with a stock
option. An SAR entitles the holder to payment from the Company of an amount
equal to the excess, on the date of exercise, of the fair market value of one
share over its fair market value on the date of grant (or, if granted in
connection with an option, the exercise price per share under the option to
which the SAR relates), multiplied by the number of shares covered by the
portion of the SAR or option that is surrendered. The Committee may also award
stock bonuses or issue shares for consideration subject to such terms,
conditions and restrictions as the Committee may determine, including
restrictions concerning transferability and forfeiture of the shares awarded.
No cash consideration will be paid in connection with SARs and stock bonuses
other than tax withholding amounts. Where shares are issued for consideration,
such consideration may not be less than 75% of the fair market value of the
shares on the date of issuance.
 
  The 1994 Plan provides for automatic acceleration of the vesting of options
and SARs granted under the 1994 Plan if a merger, consolidation,
reorganization, plan of exchange or liquidation results in the Company's
 
                                      43

<PAGE>
 
shareholders receiving cash, stock or other property in exchange for their
shares, except as specified below. Option holders will have the right during
the 30-day period immediately prior to any such event to exercise their
options or SARs without any limitation on exercisability. The 1994 Plan
requires the purchase of options and SARs granted to officers or Directors
following the expiration of the required six-month holding period. The 1994
Plan provides that, if the Company's shareholders receive stock of another
corporation in exchange for shares of the Company in any merger,
consolidation, reorganization or plan of exchange, all options granted under
the 1994 Plan will be converted into options to purchase shares of the stock
of the other corporation and all SARs will be converted into SARs measured by
the stock of the other corporation. The 1994 Plan also allows the Committee to
accelerate the vesting of the options and SARs granted under the 1994 Plan and
to grant the option holders a 30 day period prior to such event to exercise
their options or SARs, as provided above.
 
  The 1994 Plan also allows the Committee to accelerate the vesting of all
options and SARs granted thereunder (including options and SARs granted to
officers and Directors in the six months prior to such event) upon the
occurrence of a "Change in Control." A "Change in Control" is defined as (a)
the acquisition, directly or indirectly, by any individual, entity or group of
beneficial ownership of securities representing 50.1% or more of either the
then outstanding shares of Common Stock or the combined voting power in the
election of Directors of then outstanding voting securities of the Company,
(b) individuals who, as of the effective date of the 1994 Plan, constitute the
Board of Directors (the "Incumbent Board") (including any individual whose
subsequent election or nomination was approved by a vote of at least a
majority of the Directors then comprising the Incumbent Board) cease for any
reason to constitute at least a majority of the Board of Directors or (c)
approval by the stockholders of the Company of certain reorganizations,
mergers or consolidations, or of certain liquidations, dissolutions or
dispositions of all or substantially all of the assets of the Company.
 
  The Committee may make awards under the 1994 Plan that have terms and
conditions that vary from those specified in the 1994 Plan when such awards
are granted in substitution for, or in connection with the assumption of,
existing awards made by another corporation and assumed or otherwise agreed to
be provided for by the Company in connection with a corporate merger or other
similar transaction to which the Company or an affiliated company is a party.
The Committee may also specify the terms and provisions of other equity-based
or equity-related awards not described in the 1994 Plan which the Committee
determines to be consistent with the purpose of the 1994 and the interests of
the Company.
 
  The 1994 Plan may be amended by the Board of Directors at any time and will
terminate on January 1, 2004 unless terminated earlier by the Board of
Directors. No options may be granted after the termination of the 1994 Plan.
However, options granted under the 1994 Plan will remain valid under the 1994
Plan until their respective expiration dates.
   
  As of June 1, 1996, the 10-year options to purchase 2,961,624 shares of
Common Stock which are outstanding pursuant to the 1992 Plan and the 1994 Plan
were granted to 130 employees, consultants and directors (excluding executive
officers), and generally vest in equal annual installments on the first three
or four anniversaries of the date of grant. In April 1995, the Board of
Directors approved the repricing of outstanding options to $3.35 per share by
offering to exchange such outstanding options for a fewer number of options
pursuant to a Black-Scholes formula. Subsequently, options for 1,521,324
shares, with initial exercise prices of $5.00 and $9.00 per share, were
exchanged for 1,319,925 options with a price of $3.35 per share. All other
terms and conditions of the options remained unchanged.     
 
EMPLOYEE STOCK PURCHASE PLAN
   
  In March 1996 the Board of Directors adopted, and in April 1996 the
stockholders of the Company approved, the Company's 1996 Employee Stock
Purchase Plan (the "Purchase Plan"). The Purchase Plan is intended to
encourage ownership of the Company's Common Stock by employees of the Company
and to provide additional incentive for the employees to promote the success
of the business of the Company. A maximum of 1,000,000 shares of Common Stock
have been reserved for purchase under the Purchase Plan. As of June 1, 1996,
no options to purchase shares of Company Stock have been granted and no shares
of Common Stock have been purchased under the Purchase Plan.     
 
                                      44

<PAGE>
 
  Employees of the Company or any of its subsidiaries who customarily work
more than twenty hours per week and more than five months per calendar year,
and who have been employed by the Company or any of its subsidiaries for at
least one year may participate in the Purchase Plan. The Purchase Plan is
administered by the Compensation Committee of the Board of Directors (the
"Committee"). The Purchase Plan provides for the automatic grant of options to
purchase shares of Common Stock ("Options"). The Options are granted on the
first day of an offering period, which lasts approximately six months. Payroll
deductions are accumulated in an account for each participant, based on the
amounts specified by the participant in an enrollment form. At the end of the
offering period, the participant's account balance is used to purchase shares
of Common Stock pursuant to the Option. The purchase price of shares of Common
Stock under an Option will equal 85% of the average of the fair market value
of the shares at the beginning and at the end of the offering period. Options
may not be assigned or transferred. No participant may purchase shares having
a fair market value exceeding $25,000 in any calendar year. A participant may
withdraw from an offering period at any time without affecting his or her
eligibility to participate in future offering periods.
 
  There are no tax consequences to either the participant or the Company when
the Option is issued. When shares are issued upon the exercise of the Option,
there are no tax consequences to the participant (except to the extent any
excess in the fair market value of the Common Stock over the exercise price
constitutes a tax preference item which requires payment of the alternative
minimum tax) or the Company. A participant's Option will terminate and his or
her accumulated account balance will be returned if such participant ceases to
be employed by the Company.
 
  If a participant disposes of shares purchased under the Purchase Plan at
least two years after the first day of the applicable offering period and at
least one year after the date of purchase, the participants will recognize
ordinary income in the year of disposition equal to the amount of the
discount. The amount of ordinary income recognized by a participant will be
added to the participant's basis in the shares. Any additional gain recognized
upon the disposition will be long-term capital gain. The Company will not
generally be entitled to a deduction if the participant complies with these
holding periods.
 
  If a participant disposes of shares purchased under the Purchase Plan within
two years from the first day of the applicable offering period or within one
year from the date of purchase (a "disqualifying disposition"), the
participant will recognize ordinary income in the year of such disposition
equal to the amount by which the fair market value of the shares on the date
the shares were purchased exceeded the purchase price. The amount of ordinary
income will be added to the participant's basis in the shares, and any
additional gain or resulting loss recognized on the disposition of the shares
will be a capital gain or loss. The Company will be entitled to a deduction in
the year of the disqualifying disposition equal to the amount of ordinary
income recognized by the participant as a result of the disposition.
 
  The Purchase Plan provides that in the event of a "Change in Control," the
Committee will either provide for the immediate exercise of the Options to the
extent of accumulated payroll balances or provide for a successor to adopt the
Purchase Plan. For purposes of the Purchase Plan, events constituting a
"Change in Control" are (i) the direct or indirect sale or exchange by the
shareholders of the Company of all or substantially all of the shares
of Common Stock of the Company where the shareholders of the Company before
the sale or exchange do not retain, directly or indirectly, at least a
majority of the beneficial interest in the voting stock of the Company, (ii) a
merger in which the shareholders of the Company before such merger do not
retain, directly or indirectly, at least a majority of the beneficial interest
in the voting stock of the Company or (iii) the sale, exchange or transfer of
all or substantially all of the Company's assets. The Board of Directors may
terminate or amend the Purchase Plan at any time. No termination of or
amendment to the Purchase Plan may materially adversely affect the rights of a
participant in the Purchase Plan without such participant's consent.
 
  In the event any change is made to the stock issuable under the Purchase
Plan by reason of any stock split, stock dividend, combination of shares or
recapitalization, appropriate adjustment will be made to the share reserve of
the Purchase Plan and the number of shares that a participant may purchase
with respect to an Option.
 
                                      45

<PAGE>
 
ITEM 7.CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.
   
  The Company was organized in September 1991 by Dr. Bianco, Dr. Singer, Mr.
Bianco and George J. Todaro, M.D. Dr. Bianco, Dr. Singer, Mr. Bianco and Dr.
Todaro purchased 1,038,500 shares, 904,500 shares, 502,500 shares and 904,500
shares of Common Stock, respectively, at $0.01194 per share. In August 1993,
the Company repurchased 211,198 shares of Common Stock from Dr. Todaro for
$2,522.     
 
  In December 1993, CTI loaned Dr. Bianco $200,000 at 5.35% annual interest.
The promissory note provides for a single payment of principal and interest on
the earlier of July 1, 1997 or the third anniversary of the effective date of
the initial underwritten public offering of CTI's Common Stock. The loan is
secured by a pledge of shares of Common Stock owned by Dr. Bianco.
   
  CTI has entered into several transactions with D. Blech & Company,
Incorporated, and its affiliates (collectively, "Blech & Co."). David Blech, a
founder and former director of CTI, was the sole stockholder and Chief
Executive Officer of Blech & Co. These transactions include sales agency
agreements in connection with two private placements in which Blech & Co.
served as a sales agent. Pursuant to such agreements, Blech & Co. received
selling commissions of $2,309,863, warrants exercisable for five years to
purchase 617,437 shares of Common Stock and reimbursement for certain expenses
and legal fees. On December 29, 1994, Blech & Co. sold 350,712 of such
warrants to a third party, which warrants were subsequently exchanged for
140,285 shares of Common Stock in connection with CTI's warrant exchange
offer. See "Description of Capital Stock--Warrants." CTI also entered into a
loan agreement pursuant to which Mr. Blech agreed to provide CTI with a line
of credit. The outstanding balance under such line of credit was converted
into 175,184 shares of Common Stock at a price of $5.00 per share in August
1992.     
   
  In February 1992, The Edward Blech Trust, of which Mr. Blech's minor son is
the sole beneficiary, purchased 2,700,000 shares of CTI's Common Stock at a
price of $.01194 per share. Mr. Blech disclaims beneficial ownership of the
shares held by this trust. In October 1993, two charitable remainder trusts of
which Mr. Blech is a beneficiary purchased two units as part of a private
placement at a price of $225,000 per unit. Each unit consisted of 25,000
shares of CTI's Common Stock and warrants to purchase 12,500 shares at a price
of $11.00 per share. In January 1995, The Edward Blech Trust transferred
2,700,000 shares of Common Stock to Biotechnology Investment Group, L.L.C.
("BIG"), a Delaware limited liability company managed by Collinson Howe
Venture Partners ("CHVP"). See "Item 4.--Security Ownership of Certain
Beneficial Owners and Management."     
 
  On September 22, 1994, Blech & Co. suspended operations because of
noncompliance with the Securities and Exchange Commission's net capital
requirements for broker-dealers. Mr. Blech is not currently a director or
officer of CTI, and neither Mr. Blech nor Blech & Co. has any contractual
relationship with CTI other than as a stockholder.
   
  CTI entered into a consulting agreement with David H. Smith, M.D. on
February 18, 1992. Pursuant to the agreement, Dr. Smith agreed to serve as
Chairman of the Board of Directors for two consecutive one-year terms, if
elected. In June 1994, CTI and Dr. Smith agreed to extend the consulting
agreement until such time as either party may choose to terminate it on 30
days' written notice. This agreement was terminated upon Dr. Smith's
resignation from the Board of Directors on January 1, 1996. The agreement also
provided for Dr. Smith to provide CTI with advisory services beyond his duties
as chairman. Dr. Smith did not receive any compensation for his agreement to
serve as a consultant. CTI entered into a stock subscription agreement with
Dr. Smith in February 1992 pursuant to which Dr. Smith purchased 400,000
shares of Common Stock at a price of $.01194 per share. Pursuant to the
subscription agreement, CTI issued to Dr. Smith, on August 11, 1992, five-year
warrants to purchase 200,000 additional shares of Common Stock at $5.00 per
share with the same registration rights as were granted to the sales agents in
connection with the 1992 Private Placement. Dr. Smith exchanged such warrants
for 80,000 shares of Common Stock in connection with CTI's warrant exchange
offer. See "Item 11.--Description of Registrant's Securities to be
Registered--Warrants." In April 1992, Dr. Smith purchased 625,000 shares of
CTI's Common Stock at a price of $3.20 per share. In October 1993, Dr. Smith
purchased     
 
                                      46

<PAGE>
 
   
50,000 shares of Common Stock at $9.00 per share and warrants to purchase
25,000 shares of Common Stock at $11.00 per share. In March 1995, Dr. Smith
purchased 4,477.6122 shares of Convertible Preferred Stock, for an aggregate
purchase price of $1,500,000, in the Company's 1995 Private Placement.     
   
  In March 1995, an affiliate of Mr. Curnock Cook and Rothschild Asset
Management Limited purchased 22,388,061 shares of Convertible Preferred Stock,
for an aggregate purchase price of $7,500,000, in the Company's 1995 Private
Placement. The holders of the outstanding shares of Convertible Preferred
Stock voting as a separate class are entitled to elect one Director to the
Board of Directors. At the 1996 Annual Meeting of Stockholders Mr. Curnock
Cook was elected as a Director by the holders of the outstanding shares of
Convertible Preferred Stock voting as a separate class.     
 
  In March 1995, Kummell Investments Limited ("Kummell") purchased 14,925.374
shares of Convertible Preferred Stock, for an aggregate purchase price of
$5,000,000, in the 1995 Private Placement. In June 1995, Kummell purchased an
additional 12,686.5672 shares of Convertible Preferred Stock for an aggregate
purchase price of $4,250,000. In connection with the June 1995 transaction,
the Company agreed that it would take all necessary action to nominate a
designee of Kummell to serve as a Director until the 1996 Annual Meeting of
Stockholders. In July 1995, the Company nominated Mr. Morris, as a designee of
Kummell, to the Board of Directors to serve until the 1996 Annual Meeting of
Stockholders.
   
  In May 1994, CTI entered into an employment agreement with Dr. Schwarz. The
agreement provides that in connection with his relocation, Dr. Schwarz be
reimbursed for capital loss on the sale of his former residence in the form of
a forgivable loan in an amount not to exceed $150,000. The loan shall be
forgiven in three annual installments, subject to Dr. Schwarz's continued
employment with CTI, with any unforgiven portion becoming immediately due and
payable within six months of any termination of Dr. Schwarz's employment. See
"Item 6.--Executive Compensation--Employment Agreements."     
   
  In December 1995, Dr. Link purchased 20,000 shares of Common Stock for an
aggregate purchase price of $67,000.     
 
ITEM 8.LEGAL PROCEEDINGS.
 
  Not applicable.
 
                                      47

<PAGE>
 
ITEM 9. MARKET PRICE OF AND DIVIDENDS ON THE REGISTRANT'S COMMON EQUITY AND
        RELATED STOCKHOLDER MATTERS.
          
MARKET INFORMATION     
   
  There is no existing public market for the Common Stock, and there can be no
assurance as to the liquidity of any markets that may develop for the Common
Stock or, if a liquid trading market develops, that it will be sustained. In
addition, there can be no assurance as to the ability of holders of Common
Stock to sell their securities, or the price at which holders would be able to
sell their securities. The Company does not intend to apply for listing of the
Common Stock or any securities exchange or over-the-counter market prior to a
public offering. No assurance can be given that the Company will ever affect a
public offering of its securities or that a public market will otherwise
develop or be sustained in the future. See "Item 1--Business--Risk Factors--
Absence of Public Market; Likely Volatility of Stock Price."     
   
SHARES ELIGIBLE FOR FUTURE SALE     
   
  Of the 17,300,574 shares of Common Stock outstanding as of June 1, 1996
(excluding 9,544,700 shares of Common Stock issuable upon conversion of the
Convertible Preferred Stock), 9,951,387 shares which have been held by non-
affiliates for more than three years are eligible for immediate sale in the
public market without restriction under Rule 144(k) (as described below), and
an additional 6,778,977 shares will become eligible for sale under Rules 144
and 701 under the Securities Act beginning approximately 90 days after the
effective date of this Registration Statement. The remaining 570,210 shares of
Common Stock (and 9,544,700 shares of Common Stock issuable upon conversion of
the Convertible Preferred Stock) have been held for less than two years and
will become eligible for sale under Rule 144 at various dates thereafter as
the holding period provisions of Rule 144 are satisfied.     
   
  In general, under Rule 144 as currently in effect, a person (or persons
whose shares are aggregated), including an affiliate, who has beneficially
owned shares for at least two years is entitled to sell, within any three-
month period commencing 90 days after the effective date of this Registration
Statement, a number of shares (including both restricted and unrestricted
shares held by affiliates) that does not exceed the greater of (i) one percent
(1%) of the then outstanding Common Stock (approximately 173,006 shares as of
June 1, 1996) or (ii) the average weekly trading volume in the Common Stock
during the four calendar weeks preceding such sale, subject to the filing of a
Form 144 with respect to such sale and certain other limitations and
restrictions. In addition, a person who is not deemed to have been an
affiliate of the Company at any time during the three months preceding a sale,
and who has beneficially owned the shares proposed to be sold for at least
three years, would be entitled to sell such shares under Rule 144(k) without
regard to the volume limitations described above or certain other restrictions
of Rule 144. The Securities and Exchange Commission has proposed certain
amendments to Rule 144 and Rule 144(k) that would reduce the applicable
requisite holding periods to one year and two years, respectively.     
   
  Under Rule 701, any employee, officer or director of or consultant to the
Company who purchased shares pursuant to a written compensatory plan or
contract, including the 1992 Plan and the 1994 Plan, who is not an affiliate
of the Company, is entitled to sell such shares without having to comply with
the public information, holding period, volume limitation or notice provisions
of Rule 144 and permits affiliates to sell such shares without having to
comply with the Rule 144 holding period restrictions, in each case commencing
90 days after the effective date of this Registration Statement.     
   
  The Company may in the future elect to file one or more registration
statements under the Securities Act to register Common Stock to be issued
pursuant to the exercise of options, including options granted or to be
granted under the 1992 Plan and the 1994 Plan, thus permitting the resale of
such shares by non-affiliates in the public market without restriction under
the Securities Act. Such registration statement would become effective
immediately upon filing. At June 1, 1996, options to purchase an aggregate of
2,961,624 shares of Common Stock were outstanding under the 1992 Plan and the
1994 Plan. See "Item 6.--Executive Compensation--Stock Option Plans."     
 
                                      48

<PAGE>
 
   
  The holders of approximately 11,505,898 shares of Common Stock (including
9,544,700 shares of Common Stock issuable upon conversion of 95,447.004 shares
of Convertible Preferred Stock) and 272,675 shares of Common Stock issuable
upon the exercise of outstanding warrants and their permitted transferees are
entitled to certain registration rights for their shares. See "Item 11.--
Description of Registrant's Securities to be Registered--Registration Rights."
    
       
HOLDERS
   
  As of June 1, 1996, there were 520 holders of record of the Common Stock and
57 holders of record of the Convertible Preferred Stock.     
 
DIVIDEND POLICY
   
  The Company has never declared or paid any cash dividends on its capital
stock. The Company currently intends to retain all of its cash and any future
earnings to finance the growth and development of its business and therefore
does not anticipate paying any cash dividends in the foreseeable future.
Payment of dividends on the Common Stock is also restricted by the terms of
the Convertible Preferred Stock. See "Item 11.--Description of Registrant's
Securities to be Registered--Preferred Stock." Any future determination to pay
cash dividends will be at the discretion of the Board of Directors and will be
dependent upon the Company's financial condition, results of operations,
capital requirements and such other factors as the Board of Directors deems
relevant.     
 
                                      49

<PAGE>
 
ITEM 10.RECENT SALES OF UNREGISTERED SECURITIES.
   
  Set forth below is certain information as to all securities issued by the
Company since June 1, 1993 which were not registered under the Securities Act.
As to all such securities except those issued in connection with stock splits,
conversions and exchanges (as to which there was no "sale" within the meaning
of the Securities Act), exemption was claimed under Section 4(2) of the
Securities Act, or Regulation D promulgated thereunder, as transactions by an
issuer not involving a public offering. The recipients of securities in each
such transaction represented their intentions to acquire the securities for
investment only and not with a view to or for sale in connection with any
distribution thereof and appropriate legends were affixed to the share
certificates and warrants issued in such transactions. The information below
gives effect to a 1-for-2 reverse stock split effected in February 1994.     
     
    (1) Between October 1993 and February 1994, the Company sold 1,622,309
  shares of Common Stock and warrants to purchase 811,154 shares of Common
  Stock to a group of accredited investors for cash in the aggregate of
  $14,600,768. Alex. Brown & Sons Incorporated and D. Blech & Company,
  Incorporated acted as sales agents for the offering and received aggregate
  commissions of $1,146,341 and warrants to purchase an aggregate of 127,097
  and 30,154 shares of Common Stock, respectively, for $9.00 per share.     
     
    (2) In December 1994, the Company issued warrants to purchase 43,513
  shares of Common Stock at an initial exercise price of $4.40 per share to
  Aberlyn Capital Management Limited Partnership in connection with an
  equipment lease transaction. The exercise price of such warrants was
  subsequently reduced to $3.685 per share. Such warrants were subsequently
  exchanged for 25,298 shares of Common Stock in the transaction described in
  paragraph (5) below.     
     
    (3) Between March 1995 and April 1995, the Company sold an aggregate of
  76,789.5116 shares of Convertible Preferred Stock to a group of accredited
  investors for cash in the aggregate of $25,724,485. Each share of
  Convertible Preferred Stock is convertible into 100 shares of Common Stock.
         
    (4) In June 1995, the Company sold 12,686.5672 shares, 2,985.4626 shares
  and 2,985.4626 shares of Convertible Preferred Stock to Kummell Investments
  Limited, The Phoenix Partners II Limited Partnership and The Phoenix
  Partners III Limited Partnership, respectively, for cash in the aggregate
  of $6,250,260. Each share of Convertible Preferred Stock is convertible
  into 100 shares of Common Stock.     
     
    (5) In September 1995, the Company issued (i) 19,575 shares of Common
  Stock in exchange for warrants to purchase 668,474 shares of Common Stock
  at an exercise price of $11.00 per share which were issued to purchasers in
  the private placement transaction described in paragraph (1) above; (ii)
  240,495 shares of Common Stock in exchange for warrants to purchase 638,429
  shares of Common Stock at exercise prices ranging from $5.00 to $9.00 per
  share which were issued to sales agents in connection with certain private
  placement transactions, including the private placement transaction
  described in paragraph (1) above; (iii) 80,000 shares of Common Stock in
  exchange for warrants to purchase 200,000 shares of Common Stock at an
  exercise price of $5.00 per share which were issued to David H. Smith,
  M.D., a former Chairman of the Board of Directors of the Company; and (iv)
  25,298 shares of Common Stock in exchange for the warrants described in
  paragraph (2) above. In February 1996 the Company issued an additional 521
  shares of Common Stock in exchange for warrants to purchase 1,320 shares of
  Common Stock at an exercise price of $5.00 per share which were issued to
  sales agents in connection with certain private placement transactions,
  including the private placement transaction described in paragraph (1)
  above.     
     
    (6) In October 1995 the Company issued an aggregate of 345,000 shares of
  Common Stock to six shareholders of Lipomed Corporation ("Lipomed") as
  consideration for all of the intellectual property of Lipomed.     
     
    (7) In December 1995, the Company sold 20,000 shares of Common Stock to
  Max E. Link, Ph.D., a Director of the Company, for $67,000 in cash.     
     
    (8) In May 1996, the Company sold 27,778 shares of Common Stock to a
  warrant holder for $305,558 in cash upon exercise of warrants to purchase
  shares of Common Stock at an exercise price of $11.00 per share.     
     
    (9) As of June 1, 1996, the Company had granted incentive stock options
  and non-statutory stock options to employees, directors and consultants
  under its 1992 Stock Option Plan (the "1992 Plan") and 1994 Equity
  Incentive Plan (the "1994 Plan"), covering an aggregate of 4,882,458 shares
  of Common Stock, at an average exercise price of approximately $4.326 per
  share. The Company has sold an aggregate of 23,055 shares of its Common
  Stock to employees, directors and consultants of the Company for aggregate
  consideration of $79,421 pursuant to the exercise of stock options under
  the 1992 Plan and the 1994 Plan.     
 
 
                                      50

<PAGE>
 
ITEM 11.DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED.
   
  The authorized capital stock of the Company consists of 100,000,000 shares
of Common Stock, no par value, and 10,000,000 shares of Preferred Stock,
150,000 of which have been designated as Convertible Preferred Stock and
9,850,000 of which are undesignated.     
 
COMMON STOCK
   
  Each holder of Common Stock is entitled to one vote for each share held of
record on all matters submitted to a vote of the stockholders. In all matters
other than the election of Directors, when a quorum is present at any
stockholders' meeting, the affirmative vote of the majority of shares present
in person or represented by proxy shall decide any question before such
meeting. Directors are elected by a plurality of the votes of the shares
present in person or represented by proxy at a stockholders' meeting. The
Board of Directors of CTI is divided into three approximately equal classes of
Directors serving staggered three-year terms and until their successors are
elected and qualified. As a result, approximately one-third of the total
number of Directors will be elected every year. See "Item 5. Directors and
Executive Officers." The holders of Common Stock are not entitled to
cumulative voting rights with respect to the election of Directors, and, as a
consequence, minority stockholders will not be able to elect Directors on the
basis of their votes alone. Subject to preferences that may be applicable to
any then outstanding shares of Preferred Stock, including the Convertible
Preferred Stock, holders of Common Stock are entitled to receive ratably such
dividends as may be declared by the Board of Directors out of funds legally
available therefor. See "Item 9.--Market Price of and Dividends on the
Registrant's Common Equity and Related Stockholder Matters--Dividend Policy."
In the event of a liquidation, dissolution or winding up of the Company,
holders of the Common Stock would be entitled to share ratably in all assets
remaining after payment of liabilities and the satisfaction of any liquidation
preference of any then outstanding series of Preferred Stock, including the
Convertible Preferred Stock. Holders of Common Stock have no preemptive rights
and no right to convert their Common Stock into any other securities. There
are no redemption or sinking fund provisions applicable to the Common Stock.
All outstanding shares of Common Stock are fully paid and nonassessable.     
   
  As of June 1, 1996, there were 17,300,574 shares of Common Stock outstanding
(excluding 9,544,700 shares of Common Stock issuable upon conversion of
95,447.004 shares of Convertible Preferred Stock), held of record by 520
stockholders, options to purchase an aggregate of 2,961,624 shares of Common
Stock were outstanding and warrants to purchase an aggregate of 272,675 shares
of Common Stock were outstanding. See "Item 6.--Executive Compensation--Stock
Option Plans."     
 
PREFERRED STOCK
   
  The Company has 95,447.004 shares of Convertible Preferred Stock
outstanding. See "Item 1.--Business--Risk Factors--Class of Senior
Securities." The Convertible Preferred Stock is convertible into an aggregate
of 9,544,700 shares of Common Stock. The following description of the
preferences, limitations and relative rights of the Convertible Preferred
Stock is qualified in its entirety by reference to the Articles of Amendment
to Restated Articles of Incorporation of Cell Therapeutics, Inc. Establishing
a Series of Convertible Preferred Stock (the "Certificate of Designations"), a
copy of which is filed as an exhibit to this Registration Statement.     
   
  DIVIDENDS. The holders of the Convertible Preferred Stock are entitled to
receive, when, as and if declared by the Board of Directors, out of funds
legally available therefor, dividends at the rate of $33.50 per share per
annum on each outstanding share of Convertible Preferred Stock. Such dividends
have priority over any dividends paid on the Common Stock. Dividends on the
Convertible Preferred Stock are not cumulative and no right to such dividends
shall accrue to holders of Convertible Preferred Stock unless and until
declared by the Board of Directors. The Company does not anticipate declaring
any cash dividends in the foreseeable future. See "Item 9.--Market Price of
and Dividends on the Registrant's Common Equity and Related Stockholder
Matters--Dividend Policy."     
 
                                      51

<PAGE>
 
  LIQUIDATION PREFERENCE. In the event of any liquidation, dissolution, or
winding up of the Company, the holders of Convertible Preferred Stock shall be
entitled to receive $335.00 per share of Convertible Preferred Stock, plus all
declared but unpaid dividends thereon, prior and in preference to any
distribution to the holders of Common Stock. All remaining assets available
for distribution, if any, shall be distributed ratably among the holders of
the Common Stock and the Convertible Preferred Stock on an as-converted basis.
A merger or consolidation of the Company in which shareholders of the Company
receive distributions in cash or securities of another corporation as a result
of such consolidation or merger, or a sale of all or substantially all of the
assets of the Company, shall not be treated as a liquidation, dissolution or
winding up of the Company, unless both (i) the shareholders of the Company
receive in such consolidation, merger or sale of assets less than fifty
percent (50%) of the voting equity securities of the successor or surviving
corporation and (ii) the amount of cash and/or securities received by the
shareholders of the Company is less than the total liquidation preference of
the Convertible Preferred Stock, in which case such consolidation, merger or
sale of assets shall be treated as a liquidation, dissolution or winding up.
   
  CONVERSION. Each share of Convertible Preferred Stock is convertible at any
time, at the option of the holder thereof, into such number of fully paid and
nonassessable shares of Common Stock as shall be determined by dividing
$335.00 by $3.35 (the "Conversion Price"). In addition, each share of
Convertible Preferred Stock shall automatically be converted into shares of
Common Stock at the then effective Conversion Price (i) upon the closing of a
firm commitment underwritten public offering pursuant to an effective
registration statement under the Securities Act covering the offer and sale of
Common Stock for the account of the Company to the public at a price per share
of not less than $5.00 (the "IPO Conversion Price") and aggregate proceeds of
not less than $20,000,000; (ii) upon the written consent of holders of not
less than 66.67% of the then outstanding shares of Convertible Preferred
Stock; or (iii) immediately prior to the closing of any merger or
consolidation of the Company that is not treated as a liquidation, dissolution
or winding up of the Company (see "--Liquidation") if the shareholders of the
Company receive distributions of equity securities of another corporation as a
result of such consolidation or merger and such class of equity securities is,
among other things, listed on a national securities exchange and the average
closing price per share of such class of equity securities over a period of 30
trading days prior to the closing of such merger or consolidation equals or
exceeds $5.00 per share. In May 1996, the holders of the Convertible Preferred
Stock consented to a temporary reduction in the IPO Conversion Price from
$5.00 per share to $3.40 per share, which consent shall expire if the
automatic conversion of the Convertible Preferred Stock shall not have
occurred by September 30, 1996.     
   
  The Conversion Price shall be adjusted upon the occurrence of any
recapitalization, stock split, stock dividend or other similar dilutive event.
In addition, if the Company shall issue or sell any equity securities at a
price per share that is less than the Conversion Price then in effect, the
Conversion Price of each share of Convertible Preferred Stock shall be ratably
adjusted. The Company has agreed with the holders of the Convertible Preferred
Stock to use its best efforts to exchange shares of its Common Stock for
certain outstanding warrants to purchase shares of Common Stock at an exercise
price of $5.00 per share (the "$5.00 Warrants"). As of June 1, 1996, 285,607
shares of Common Stock were issued in exchange for 714,041 $5.00 Warrants, and
241,152 $5.00 Warrants remained outstanding. See "--Warrants." In the event
that the Company shall issue any shares of Common Stock in respect of the
$5.00 Warrants in excess of 318,398 shares, whether by exercise, exchange or
otherwise, the Conversion Price shall be adjusted to reflect such issuance.
For purposes of calculating such adjustment, the Company shall be deemed to
have issued such additional shares of Common Stock for no consideration. No
adjustment to the Conversion Price shall be made in respect of any shares of
Common Stock issued in respect of the $5.00 Warrants if the average closing
price per share of the Common Stock as calculated for any consecutive 30
trading days equals or exceeds $7.00 per share. In the event of either of the
foregoing events, the Conversion Price then in effect shall be readjusted to
such Conversion Price as would have been obtained had no adjustments been made
in respect of any shares of Common Stock issued in respect of the $5.00
Warrants.     
 
  VOTING RIGHTS. Each share of Convertible Preferred Stock is entitled to vote
with the Common Stock on an as-converted basis. In addition, for so long as
there shall be outstanding 22,300 shares of Convertible Preferred
 
                                      52

<PAGE>
 
Stock, the holders of the Convertible Preferred Stock voting as a separate
class shall be entitled to elect one additional Director to the Board of
Directors. The affirmative vote of the holders of 66.67% of the outstanding
shares of Convertible Preferred Stock voting together as a single class shall
be required for the Company to amend the Restated Articles of Incorporation so
as to adversely affect the voting powers or other rights or preferences of the
Convertible Preferred Stock or to authorize or issue shares of any class or
series of stock having any preference or priority as to dividends or assets
superior to or on a parity with the Convertible Preferred Stock. The exercise
of these voting rights could be detrimental to the holders of the Common
Stock.
 
  The Board of Directors has the authority, without further vote or action by
the stockholders, to issue up to 10,000,000 shares of Preferred Stock in one
or more series and to fix the designations and powers, preferences and rights,
if any, and qualifications, limitations or other restrictions thereof,
including, without limitation, the dividend rate (and whether dividends are
cumulative), conversion rights, if any, voting rights, rights and terms of
redemption (including sinking fund provisions, if any), redemption price and
liquidation preferences of any wholly unissued series of Preferred Stock and
the number of shares constituting any such series and the designation thereof.
Although the Company has no current plans to issue any shares of Preferred
Stock, the issuance of Preferred Stock or of rights to purchase Preferred
Stock could be used to delay or discourage an unsolicited acquisition
proposal. In addition, the possible issuance of Preferred Stock could
discourage a proxy contest, make more difficult the acquisition of a
substantial block of the Company's Common Stock or limit the price that
investors might be willing to pay in the future for shares of the Company's
Common Stock.
 
  The Company believes that the Preferred Stock will provide the Company with
increased flexibility in structuring possible future financings and
acquisitions, and in meeting other corporate needs that might arise. Having
such authorized shares available for issuance will allow the Company to issue
shares of Preferred Stock without the expense and delay of a special
stockholders' meeting. The authorized shares of Preferred Stock, as well as
shares of Common Stock, will be available for issuance without further action
by stockholders, unless such action is required by applicable law, the terms
of any series of Preferred Stock then outstanding or the rules of any stock
exchange on which the Company's securities may be listed.
 
WARRANTS
   
  In September 1995 CTI completed an exchange offer (the "Warrant Exchange")
to exchange shares of its Common Stock for its outstanding warrants to
purchase shares of Common Stock. In connection with the Warrant Exchange, the
Company issued (i) 19,575 shares of Common Stock in exchange for warrants to
purchase 668,474 shares at an exercise price of $11.00 per share which were
issued to purchasers in the 1993 Private Placement (the "Unit Warrants"); (ii)
241,016 shares of Common Stock in exchange for warrants to purchase 639,749
shares at exercise prices ranging from $5.00 to $9.00 per share which were
issued to sales agents in connection with the 1992 Private Placement and the
1993 Private Placement (the "Sales Agent Warrants"); (iii) 80,000 shares of
Common Stock in exchange for warrants to purchase 200,000 shares at an
exercise price of $5.00 per share which were issued to David H. Smith, M.D., a
former Chairman of the Board of Directors of the Company (the "Smith
Warrants"); and (iv) 25,298 shares of Common Stock in exchange for warrants to
purchase 43,513 shares at an exercise price of $3.685 per share which were
issued to Aberlyn Capital Management Limited Partnership at an initial
exercise price of $4.40 per share in connection with an equipment leasing
transaction (the "Lease Warrants").     
   
  As of June 1, 1996, there were outstanding Sales Agent Warrants to purchase
272,675 shares at exercise prices ranging from $5.00 to $9.00 per share. The
Sales Agent Warrants will expire between August 11, 1997 and February 7, 1999.
The exercise prices of the Sales Agent Warrants are subject to proportional
adjustment in the event of stock splits and stock dividends.     
 
                                      53

<PAGE>
 
REGISTRATION RIGHTS
          
  Pursuant to a registration agreement entered into in connection with the
1993 Private Placement (the "1993 Registration Agreement"), holders of
1,641,884 shares of Common Stock, including 19,575 shares of Common Stock
issued in exchange for Unit Warrants to purchase 668,474 shares of Common
Stock in connection with the Warrant Exchange (collectively, the "1993
Registrable Securities"), are entitled to certain registration rights with
respect to the 1993 Registrable Securities. Pursuant to the 1993 Registration
Agreement, the Company will be required to use its best efforts to effect the
registration of the Registrable Securities under the Securities Act not later
than six months after the final closing date of the initial public offering of
the Company's Common Stock (the "IPO Closing Date") and to keep such
registration effective pursuant to Rule 415 under the Securities Act until May
31, 1999.     
   
  Pursuant to the Sales Agent Warrants and the Smith Warrants, the holders of
such warrants have certain demand and piggyback registration rights with
respect to such warrants and the shares of Common Stock issuable upon exercise
of such warrants, including the shares of Common Stock issued in exchange for
such warrants in connection with the Warrant Exchange (collectively, the
"Warrant Securities"). The holders of the Warrant Securities hold 321,016
shares of Common Stock and warrants to purchase 272,675 shares of Common
Stock. The holders of the Warrant Securities may, beginning six months to one
year following the completion of an initial public offering of the Company's
Common Stock, require the Company to file up to an aggregate of three
registration statements permitting the sale of the Warrant Securities and to
maintain the effectiveness of such registration statements for at least nine
months. In addition, the Company is required to file a registration statement
on Form S-3 with respect to the Warrant Securities, at such time as it is
eligible to do so, and to use its best efforts to effect such registration and
maintain the effectiveness of such registration statement for a specified
period of time, subject to certain conditions and limitations. Further, if the
Company registers any of its securities under the Securities Act, the holders
of the Warrant Securities are entitled to notice of and inclusion in such
registration, subject to the right of the managing underwriters to limit the
number of shares to be included in such registration.     
   
  Pursuant to the Lease Warrants, the holder of the 25,298 shares of Common
Stock issued in exchange for the Lease Warrants in connection with the Warrant
Exchange has certain demand registration rights with respect to such shares of
Common Stock (the "Lease Warrant Securities"). The holder of the Lease Warrant
Securities may, beginning one year following the completion of an initial
public offering of the Company's Common Stock, require the Company to file one
registration statement permitting the sale of the Lease Warrant Securities and
to maintain the effectiveness of such registration statement for at least nine
months.     
   
  Pursuant to registration agreements entered into with the holders of the
Convertible Preferred Stock (the "1995 Registration Rights Agreements"), the
holders of 95,447.004 shares of Convertible Preferred Stock, which are
convertible into an aggregate of 9,544,700 shares of Common Stock (the "1995
Registrable Securities"), are entitled to certain registration rights with
respect to the 1995 Registrable Securities. Pursuant to the 1995 Registration
Agreements, the Company will be required to use its best efforts to effect the
registration of the 1995 Registrable Securities under the Securities Act not
later than six months after the IPO Closing Date and to keep such registration
effective pursuant to Rule 415 under the Securities Act until March 22, 1998.
In addition, pursuant to the 1995 Registration Agreements, if the Company
shall not have effected the registration of all 1995 Registrable Securities
covered thereunder by March 31, 1997, the holders of a majority in interest of
1995 Registrable Securities shall have the right (but only once), to make a
written request to the Company for registration of all 1995 Registrable
Securities.     
   
  Subject to certain limitations, the Company is required to bear all
expenses, other than underwriting discounts and commissions, incurred in
connection with the registration of the 1993 Registrable Securities, the
Warrant Securities, the Lease Warrant Securities and the 1995 Registrable
Securities (collectively, the "Registrable Securities") pursuant to the
agreements described above. The Company and the holders of the Registrable
Securities have agreed to indemnify each other for certain liabilities arising
out of material misstatements and omissions made by the other party in any
registration statement covering Registrable Securities.     
 
                                      54

<PAGE>
 
  If stockholders, by exercising their registration rights, cause a large
number of shares to be sold in the public market, such sales may have an
adverse effect on any future market price for the Common Stock. In addition,
the existence of such registration rights and the existence of an effective
registration statement over an extended period of time may have an adverse
effect on the Company's efforts to raise needed capital.
 
ANTITAKEOVER RESTRICTIONS
 
 Statutory Provisions
 
  Washington law contains certain provisions that may have the effect of
delaying, deterring or preventing a change in control of the Company. Chapter
23B.17 of the Washington Business Corporation Act (the "WBCA") prohibits,
subject to certain exceptions, a merger, sale of assets or liquidation of the
Company involving an "interested shareholder" (defined as a person or group of
affiliated persons who own beneficially 20% or more of the Company's voting
securities) unless the transaction is determined to be at a "fair price" or
otherwise approved by a majority of the Company's disinterested directors or
is approved by holders of two-thirds of the Company's outstanding voting
securities, other than those held by the interested shareholder. A Washington
corporation may, in its articles of incorporation, exempt itself from coverage
of this provision, but the Company has not done so. In addition, Chapter
23B.19 of the WBCA prohibits the Company, with certain exceptions, from
engaging in certain significant business transactions with an "acquiring
person" (defined as a person or group of persons who acquire 10% or more of
the Company's voting securities without the prior approval of the Company's
Board of Directors) for a period of five years following the acquiring
person's share acquisition date. The prohibited transactions include, among
others, a merger or consolidation with, disposition of assets to, or issuance
or redemption of stock to or from, the acquiring person, or otherwise allowing
the acquiring person to receive any disproportionate benefit as a stockholder.
The Company may not exempt itself from coverage of this statute. These
statutory provisions may have the effect of delaying, deterring or preventing
a change in control of the Company.
 
  The Company's Board of Directors is divided into three approximately equal
classes of directors serving staggered three-year terms. In addition, the
Company's Articles of Incorporation provide that directors may be removed from
office only at a meeting of stockholders called expressly for that purpose and
only for cause. The Company's Articles of Incorporation limit "cause" to
willful misfeasance having a material adverse effect on the Company or
conviction of a felony, provided that any action by a director shall not
constitute "cause" if, in good faith, the director believed the action to be
in or not opposed to the best interests of the Company or if the director is
entitled under applicable law, the Company's Articles of Incorporation or
Bylaws, or a contract with the Company to be indemnified with respect to such
action. Further, the Company's Bylaws require a stockholder to provide notice
to the Company of such stockholder's intent to nominate a person or persons
for election as directors not later than 90 days prior to the date one year
from the date of the immediately preceding annual meeting of stockholders or,
in the case of an election to be held at a special meeting of stockholders for
the election of directors, the close of business on the tenth following the
date on which notice of such meeting is first given to stockholders. A
stockholder must also provide the Company with notice of such stockholder's
intent to make any proposal at an annual meeting of stockholders not later
than 90 days prior to the date one year from the date of the immediately
preceding annual meeting of stockholders. These provisions may have the effect
of deterring hostile takeovers or delaying changes in control or management of
CTI.
 
TRANSFER AGENT AND REGISTRAR
   
  The Transfer Agent and Registrar for CTI's Common Stock is Harris Trust
Company of California.     
 
                                      55

<PAGE>
 
ITEM 12.INDEMNIFICATION OF DIRECTORS AND OFFICERS.
   
  Sections 23B.08.500 through 23B.08.600 of the Washington Business
Corporation Act (the "WBCA") authorize a court to award, or a corporation's
board of directors to grant, indemnification to directors and officers on
terms sufficiently broad to permit indemnification under certain circumstances
for liabilities arising under the Securities Act of 1933, as amended (the
"Securities Act"). Article IX of the Company's Restated Bylaws (Exhibit 3.3
hereto) provides for indemnification of the Company's directors, officers,
employees and agents to the maximum extent permitted by Washington law. The
directors and officers of the Company also may be indemnified against
liability they may incur for serving in such capacity pursuant to a liability
insurance policy maintained by the Company for such purpose.     
   
  Section 23B.08.320 of the WBCA authorizes a corporation to limit a
director's liability to the corporation or its shareholders for monetary
damages for acts or omissions as a director, except in certain circumstances
involving intentional misconduct, knowing violations of law or illegal
corporate losses or distributions, or any transaction from which the director
personally receives a benefit in money, property or services to which the
director is not legally entitled. Article VI of the Company's Restated
Articles of Incorporation (Exhibit 3.1 hereto) contains provisions
implementing, to the fullest extent permitted by Washington law, such
limitations on a director's liability to the Company and its shareholders.
       
  The Company has entered into an indemnification agreement with each of its
executive officers and directors in which the Company agrees to hold harmless
and indemnify the officer or director to the fullest extent permitted by
Washington law. The Company agrees to indemnify the officer or director
against any and all losses, claims, damages, liabilities or expenses incurred
in connection with any actual, pending or threatened action, suit, claimor
proceeding, whether civil, criminal, administrative or investigative and
whether formal or informal, in which the officer or director is, was or
becomes involved by reason of the fact that the officer or director is or was
a director, officer, employee, trustee or agent of the Company or any related
company, partnership or enterprise, including service with respect to an
employee benefit plan, whether the basis of such proceeding is alleged action
(or inaction) by the officer or director in an official capacity and any
action, suit, claim or proceeding instructed by or at the direction of the
officer or director unless such action, suit, claim or proceeding is or was
authorized by the Company's Board of Directors. No indemnity pursuant to the
indemnification agreements shall be provided by the Company on account of any
suit in which a final, unappealable judgment is rendered against the officer
or director for an accounting of profits made from the purchase or sale by the
officer or director of securities of the Company in violation of the
provisions of Section 16(b) of the Securities Exchange Act of 1934, as
amended, and amendments thereto, or for damages that have been paid directly
to the officer or director by an insurance carrier under a policy of
directors' and officers' liability insurance maintained by the Company.     
       
ITEM 13.FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.
   
  Information with respect to Item 13 is contained in the Company's
consolidated financial statements and is set forth herein beginning on Page F-
1.     
 
ITEM 14. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
         FINANCIAL DISCLOSURE.
 
  Not applicable.
 
                                      56

<PAGE>
 
ITEM 15.FINANCIAL STATEMENTS AND EXHIBITS.
     
    a. Each of the following items are contained in the Company's
  Consolidated Financial Statements and are set forth herein beginning on
  page F-1.     
 
      (i)   Report of Ernst & Young LLP, Independent Auditors
 
      (ii)  Balance Sheets as of December 31, 1994 and 1995, and unaudited
            Balance Sheet as of March 31, 1996
 
      (iii) Statements of Operations for the Years Ended December 31, 1993,
            1994 and 1995 and for the period from September 4, 1991 (date
            of incorporation) to December 31, 1995, and unaudited
            Statements of Operations for the three months ended March 31,
            1995 and 1996 and for the period from September 4, 1991 (date
            of incorporation) to March 31, 1996
 
      (iv)  Statements of Stockholders' Equity for the Years Ended December
            31, 1993, 1994 and 1995, and for the period from September 4,
            1991 (date of incorporation) to December 31, 1995, and unaudited
            Statement of Stockholders' Equity for the three months ended
            March 31, 1996
 
      (v)   Statements of Cash Flows for the Years Ended December 31, 1993,
            1994 and 1995 and for the period from September 4, 1991 (date of
            incorporation) to December 31, 1995, and unaudited Statements of
            Cash Flows for the three months ended March 31, 1995 and 1996
            and for the period from September 4, 1991 (date of
            incorporation) to March 31, 1996
 
      (vi)  Notes to Financial Statements
 
    b. Exhibits.
 

<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                           DOCUMENT DESCRIPTION
 -------                          --------------------
 <C>     <S>
  3.1*   Registrant's Restated Articles of Incorporation
  3.2*   Registrant's Articles of Amendment to Restated Articles of
          Incorporation Establishing a Series of Preferred Stock
  3.3*   Registrant's Restated Bylaws
  4.1    Specimen Common Stock Certificate
 10.1**  Lease Agreement between David A. Sabey and Sandra L. Sabey and the
          Registrant, dated March 27, 1992, as amended March 31, 1992, as
          amended October 13, 1992
 10.2*   Assignment of Lease between Manlove Travel and the Registrant, dated
          April 23, 1993
 10.3*   Memorandum of Understanding between the Port of Seattle and the
          Registrant, dated March 16, 1994, as amended July 19, 1994, September
          29, 1994, October 31, 1994 and August 29, 1995
 10.4    Employment Agreement between the Registrant and James A. Bianco, dated
          as of February 1, 1992
 10.5*   Employment Agreement between the Registrant and Jack W. Singer, dated
          as of February 26, 1992
 10.6    Employment Agreement between the Registrant and Louis A. Bianco, dated
          as of February 1, 1992, as amended May 27, 1994
 10.7*   Employment Agreement between the Registrant and Maurice J. Schwarz,
          dated May 2, 1994
 10.8*   Severance Agreement between the Registrant and Robert A. Lewis, dated
          April 1, 1996
 10.9*   Promissory Note between James A. Bianco, M.D. and the Registrant,
          dated December 23, 1993
 10.10*  Stock Pledge Agreement between James A. Bianco, M.D. and the
          Registrant, dated December 23, 1993
 10.11*  1994 Equity Incentive Plan, as amended
 10.12*  1992 Stock Option Plan, as amended
 10.13*  1996 Employee Stock Purchase Plan
</TABLE>
    
 
 
                                      57

<PAGE>
 

<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                                DESCRIPTION
 -------                               -----------
 <C>     <S>
 10.14*  Form of Sales Agent Warrant for the 1992 Private Placement
 10.15*  Warrant, dated November 25, 1992, between the Registrant and David H.
          Smith, M.D.
 10.16*  Registration Agreement between the Registrant and the other parties
          included therein, dated as of November 23, 1993
 10.17*  Form of Sales Agent Warrant for the 1993 Private Placement
 10.18*  Subscription Agreement between the Registrant and the other parties
          included therein, dated as of March 21, 1995
 10.19*  Registration Rights Agreement between the Registrant and the other
          parties included therein, dated as of March 21, 1995
 10.20+  Collaboration Agreement by and between BioChem Therapeutic Inc. and
          the Registrant, dated March 7, 1995, as amended on November 30, 1995,
          as amended December 6, 1995
 10.21+  Supply Agreement by and between BioChem Therapeutic Inc. and the
          Registrant, dated March 7, 1995
 10.22*  Master Lease Agreement, dated as of December 28, 1994 between the
          Registrant and Aberlyn Capital Management Limited Partnership
 10.23*  Common Stock Purchase Warrant, dated December 28, 1994 between the
          Registrant and Aberlyn Capital Management Limited Partnership
 10.24*  Loan and Security Agreement, dated as of May 30, 1995, between the
          Registrant and Financing for Science International, Inc.
 10.25*  Asset Purchase Agreement, dated of October 17, 1995, between Lipomed
          Corporation, its Stockholders and the Registrant, as amended
 10.26   Form of Scientific Advisory Board Consulting Agreement
 10.27   Form of Clinical Advisory Board Consulting Agreement
 11.1    Computation of net loss per share
</TABLE>
    
   
    
- --------
   
  *Incorporated by reference to exhibits to the Registrant's Registration
  Statement on Form S-1 (No. 333-4154).     
   
 **Previously filed.     
   
  +Confidential treatment requested.     
       
                                      58

<PAGE>
 
                                   SIGNATURES
 
  Pursuant to the requirements of Section 12 of the Securities Exchange Act of
1934, the Registrant has duly caused this Registration Statement to be signed
on its behalf by the undersigned, thereto duly authorized.
 
                                          Cell Therapeutics, Inc.
Dated: June 26, 1996     
 
                                                 /s/ James A. Bianco, M.D.
                                          By: _________________________________
                                              James A. Bianco, M.D. President
                                                and Chief Executive Officer
 
                                       59

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                         INDEX TO FINANCIAL STATEMENTS
 

<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Report of Ernst & Young LLP, Independent Auditors.......................... F-2
Balance Sheets............................................................. F-3
Statements of Operations................................................... F-4
Statements of Stockholders' Equity......................................... F-5
Statements of Cash Flows................................................... F-6
Notes to Financial Statements.............................................. F-7
</TABLE>

 
                                      F-1

<PAGE>
 

               REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
The Board of Directors and Stockholders
Cell Therapeutics, Inc.
 
  We have audited the accompanying balance sheets of Cell Therapeutics, Inc.
(a development stage company) as of December 31, 1994 and 1995, and the
related statements of operations, stockholders' equity, and cash flows for
each of the three years in the period ended December 31, 1995 and for the
period from September 4, 1991 (date of incorporation) to December 31, 1995.
These financial statements are the responsibility of the Company's management.
Our responsibility is to express an opinion on these financial statements
based on our audits.
 
  We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.
 
  In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Cell Therapeutics, Inc. (a
development stage company) at December 31, 1994 and 1995, and the results of
its operations and its cash flows for each of the three years in the period
ended December 31, 1995 and for the period from September 4, 1991 (date of
incorporation) to December 31, 1995, in conformity with generally accepted
accounting principles.
 
                                          Ernst & Young LLP
 
Seattle, Washington
January 19, 1996,

       
                                      F-2

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                                 BALANCE SHEETS
 

<TABLE>   
<CAPTION>
                                             DECEMBER 31,
                                       --------------------------   MARCH 31,
                                           1994          1995          1996
                                       ------------  ------------  ------------
                                                                   (UNAUDITED)
<S>                                    <C>           <C>           <C>
ASSETS
Current assets:
  Cash and cash equivalents........... $  2,408,256  $  6,931,592  $  5,624,211
  Securities available-for-sale.......    6,275,587    14,974,430    13,778,901
  Prepaid expenses....................       17,291        20,080        61,663
                                       ------------  ------------  ------------
Total current assets..................    8,701,134    21,926,102    19,464,775
Securities available-for-sale.........      446,885           --            --
Property and equipment, net...........    7,226,200     5,713,227     5,707,927
Note receivable from officer..........      211,022       221,722       224,398
Other assets..........................      234,296       187,244       203,069
Deferred offering costs...............      458,726           --            --
                                       ------------  ------------  ------------
Total assets.......................... $ 17,278,263  $ 28,048,295  $ 25,600,169
                                       ============  ============  ============
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable.................... $    727,903  $  1,057,428  $    539,070
  Accrued expenses....................    1,657,800     1,412,424     1,859,322
  Current portion of long-term obliga-
   tions..............................    2,221,735     1,114,520     1,137,841
                                       ------------  ------------  ------------
Total current liabilities.............    4,607,438     3,584,372     3,536,233
Long-term obligations, less current
 portion..............................    2,619,521     2,605,698     2,396,161
Commitments
Stockholders' equity:
  Preferred stock:
    Authorized shares--10,000,000:
     Series A Convertible Preferred
      Stock, no par value:
      Designated shares--150,000
      Issued and outstanding shares--
       95,447.004 at December 31, 1995
       and March 31, 1996 (liquidation
       preference $335 per share
       aggregating $31,974,746).......          --     30,496,204    30,496,204
  Common stock, no par value:
    Authorized shares--100,000,000
    Issued and outstanding shares--
     16,519,752, 17,265,773 and
     17,272,536 at December 31, 1994
     and 1995, and March 31, 1996,
     respectively.....................   50,202,467    51,481,481    51,502,391
  Deficit accumulated during develop-
   ment stage.........................  (40,151,163)  (60,119,460)  (62,330,820)
                                       ------------  ------------  ------------
Total stockholders' equity............   10,051,304    21,858,225    19,667,775
                                       ------------  ------------  ------------
Total liabilities and stockholders'
 equity............................... $ 17,278,263  $ 28,048,295  $ 25,600,169
                                       ============  ============  ============
</TABLE>
    
 
 
                            See accompanying notes.
 
                                      F-3

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                            STATEMENTS OF OPERATIONS
 

<TABLE>   
<CAPTION>
                                                                     PERIOD FROM                              PERIOD FROM
                                                                    SEPTEMBER 4,                              SEPTEMBER 4,
                                                                    1991 (DATE OF    THREE MONTHS ENDED      1991 (DATE OF
                                YEAR ENDED DECEMBER 31,            INCORPORATION)         MARCH 31,          INCORPORATION)
                         ----------------------------------------  TO DECEMBER 31, ------------------------   TO MARCH 31,
                             1993          1994          1995           1995          1995         1996           1996
                         ------------  ------------  ------------  --------------- -----------  -----------  --------------
                                                                                   (UNAUDITED)  (UNAUDITED)   (UNAUDITED)
<S>                      <C>           <C>           <C>           <C>             <C>          <C>          <C>
Revenues:
  Signing fee..........  $        --   $        --   $        --    $        --    $       --   $ 3,000,000   $  3,000,000
  Collaboration
   agreement...........           --            --        100,000        100,000           --           --         100,000
Operating expenses:
  Research and
   development.........    11,861,991    14,368,089    14,210,960     44,366,843     3,331,613    3,495,898     47,862,741
  General and
   administrative......     4,052,196     5,283,263     6,539,637     17,536,470     1,291,736    1,862,598     19,399,068
                         ------------  ------------  ------------   ------------   -----------  -----------   ------------
                           15,914,187    19,651,352    20,750,597     61,903,313     4,623,349    5,358,496     67,261,809
                         ------------  ------------  ------------   ------------   -----------  -----------   ------------
Loss from operations...   (15,914,187)  (19,651,352)  (20,650,597)   (61,803,313)   (4,623,349)  (2,358,496)   (64,161,809)
Other income (expense):
  Investment income....       723,362       616,223     1,167,369      2,799,540       111,269      300,003      3,099,543
  Interest expense.....      (137,318)     (464,154)     (509,247)    (1,139,865)     (129,180)    (135,919)    (1,275,784)
                         ------------  ------------  ------------   ------------   -----------  -----------   ------------
Net loss...............  $(15,328,143) $(19,499,283) $(19,992,475)  $(60,143,638)  $(4,641,260) $(2,194,412)  $(62,338,050)
                         ============  ============  ============   ============   ===========  ===========   ============
  Net loss per share...  $      (1.00) $      (1.18) $      (1.20)                 $     (0.28) $     (0.13)
                         ============  ============  ============                  ===========  ===========
  Shares used in
   computation of net
   loss per share......    15,331,876    16,507,395    16,699,364                   16,520,277   17,268,103
                         ============  ============  ============                  ===========  ===========
</TABLE>
    
 
 
                            See accompanying notes.
 
                                      F-4

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                       STATEMENTS OF STOCKHOLDERS' EQUITY
 

<TABLE>   
<CAPTION>
                                                                           DEFICIT        DEFERRED
                                                                         ACCUMULATED    COMPENSATION
                              COMMON STOCK           PREFERRED STOCK        DURING     AND TECHNOLOGY
                         -----------------------  ---------------------- DEVELOPMENT     LICENSING
                           SHARES      AMOUNT       SHARES     AMOUNT       STAGE          COSTS         TOTAL
                         ----------  -----------  ---------- ----------- ------------  -------------- ------------
<S>                      <C>         <C>          <C>        <C>         <C>           <C>            <C>
December 1991 issuance
 of common stock to
 founders at $0.01194
 per share (including
 637,500 shares
 contributed by founders
 for compensation and
 technology)............  6,700,002  $    87,612         --  $       --  $        --      $(7,612)    $     80,000
 April 1992 proceeds
  received from issuance
  of shares at $3.20 per
  share and 200,000
  warrants at $0.02 each
  to Chairman of the
  Board of Directors....    625,000    2,004,000         --          --           --          --         2,004,000
 Net proceeds from the
  issuance of common
  stock in August
  through December 1992
  via private placement
  equity offering at $5
  per share, net of
  offering costs of
  $3,467,352............  7,787,114   35,083,440         --          --           --          --        35,083,440
 Net loss for the year
  ended December 31,
  1992..................        --           --          --          --    (5,323,737)        --        (5,323,737)
 Fair value of stock
  contributed by
  founders for
  compensation and
  technology............        --           --          --          --           --        7,612            7,612
                         ----------  -----------  ---------- ----------- ------------     -------     ------------
Balance at December 31,
 1992................... 15,112,116   37,175,052         --          --    (5,323,737)        --        31,851,315
 August 1993 Repurchase
  of common stock at
  $0.01194 per share and
  July 1993 cancellation
  of 3,750 shares.......   (214,948)      (2,522)        --          --           --          --            (2,522)
 Net proceeds from the
  issuance of common
  stock and warrants in
  October and November
  1993 via private
  placement equity
  offering at $9 per
  unit, net of offering
  costs of $1,486,383...  1,534,809   12,326,885         --          --           --          --        12,326,885
 Net loss for the year
  ended December 31,
  1993..................        --           --          --          --   (15,328,143)        --       (15,328,143)
                         ----------  -----------  ---------- ----------- ------------     -------     ------------
Balance at December 31,
 1993................... 16,431,977   49,499,415         --          --   (20,651,880)        --        28,847,535
 Net proceeds from the
  issuance of common
  stock and warrants in
  February 1994 via
  private placement
  equity offering at $9
  per unit, net of
  offering costs of
  $85,823...............     87,500      701,677         --          --           --          --           701,677
 Proceeds from stock
  options exercised in
  July 1994 at $5 per
  share.................        275        1,375         --          --           --          --             1,375
 Net loss for the year
  ended December 31,
  1994..................        --           --          --          --   (19,499,283)        --       (19,499,283)
                         ----------  -----------  ---------- ----------- ------------     -------     ------------
Balance at December 31,
 1994................... 16,519,752   50,202,467         --          --   (40,151,163)        --        10,051,304
 Net proceeds from the
  issuance of Series A
  convertible preferred
  stock in March through
  June 1995 via private
  placement equity
  offering at $335.00
  per share, net of
  offering costs of
  $1,478,541............        --           --   95,447.004  30,496,204          --          --        30,496,204
 Exchange of warrants
  for common stock in
  September 1995 valued
  at $3.35 per share....    365,368          --          --          --           --          --               --
 Issuance of common
  stock for purchased
  research and
  development in October
  1995 at $3.35 per
  share.................    345,000    1,155,750         --          --           --          --         1,155,750
 Proceeds from issuance
  of stock and stock
  options exercised in
  February through
  December 1995 at $3.35
  and $5 per share......     35,653      123,264         --          --           --          --           123,264
 Net loss for the year
  ended December 31,
  1995..................        --           --          --          --   (19,992,475)        --       (19,992,475)
 Unrealized gains on
  securities available-
  for-sale..............        --           --          --          --        24,178         --            24,178
                         ----------  -----------  ---------- ----------- ------------     -------     ------------
Balance at December 31,
 1995................... 17,265,773   51,481,481  95,447.004  30,496,204  (60,119,460)        --        21,858,225
 Exchange of warrants
  for common stock in
  February 1996 valued
  at $3.35 per share
  (unaudited)...........        521          --          --          --           --          --               --
 Proceeds from issuance
  of stock and stock
  options exercised in
  January through March
  1996 at $3.35 per
  share (unaudited).....      6,242       20,910         --          --           --          --            20,910
 Net loss for the three
  months ended March 31,
  1996 (unaudited)......        --           --          --          --    (2,194,412)        --        (2,194,412)
 Unrealized losses on
  securities available-
  for-sale (unaudited)..        --           --          --          --       (16,948)        --           (16,948)
                         ----------  -----------  ---------- ----------- ------------     -------     ------------
Balance at March 31,
 1996 (unaudited)....... 17,272,536  $51,502,391  95,447.004 $30,496,204 $(62,330,820)    $   --      $ 19,667,775
                         ==========  ===========  ========== =========== ============     =======     ============
</TABLE>
    
 
                            See accompanying notes.
 
                                      F-5

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                            STATEMENTS OF CASH FLOWS
 

<TABLE>   
<CAPTION>
                                                                    PERIOD FROM                              PERIOD FROM
                                                                   SEPTEMBER 4,                              SEPTEMBER 4,
                                                                   1991 (DATE OF    THREE MONTHS ENDED      1991 (DATE OF
                               YEAR ENDED DECEMBER 31,            INCORPORATION)         MARCH 31,          INCORPORATION)
                        ----------------------------------------  TO DECEMBER 31, ------------------------   TO MARCH 31,
                            1993          1994          1995           1995          1995         1996           1996
                        ------------  ------------  ------------  --------------- -----------  -----------  --------------
                                                                                  (UNAUDITED)  (UNAUDITED)   (UNAUDITED)
<S>                     <C>           <C>           <C>           <C>             <C>          <C>          <C>
OPERATING ACTIVITIES
Net loss..............  $(15,328,143) $(19,499,283) $(19,992,475)  $(60,143,638)  $(4,641,260) $(2,194,412)  $(62,338,050)
Adjustments to
 reconcile net loss to
 net cash used in
 operating activities:
 Depreciation and am-
  ortization..........     1,308,798     1,617,438     1,718,765      4,802,786       437,518      408,188      5,210,974
 Noncash research and
  development ex-
  pense...............           --            --      1,155,750      1,155,750           --           --       1,155,750
 Noncash interest ex-
  pense...............           --            --            --          25,918           --           --          25,918
 Noncash rent ex-
  pense...............       158,833        33,396        33,396        440,072         8,349        8,349        448,421
 Investment premium
  amortization........       172,972       119,110        22,500        410,746        60,602       27,877        438,623
 Changes in assets and
  liabilities:
 Prepaid expenses.....       (22,331)      166,123        (2,789)       (20,080)      (40,653)     (41,583)       (61,663)
 Note receivable from
  officer.............      (200,000)      (11,022)      (10,700)      (221,722)       (2,676)      (2,676)      (224,398)
 Other assets.........        86,992      (143,476)        9,208       (281,925)      485,137      (19,961)      (301,886)
 Accounts payable.....      (192,787)      330,197       329,525      1,057,428       171,613     (518,358)       539,070
 Accrued expenses.....       109,878       906,428      (245,376)     1,412,424      (321,763)     446,898      1,859,322
                        ------------  ------------  ------------   ------------   -----------  -----------   ------------
Total adjustments.....     1,422,355     3,018,194     3,010,279      8,781,397       798,127      308,734      9,090,131
                        ------------  ------------  ------------   ------------   -----------  -----------   ------------
Net cash used in oper-
 ating activities.....   (13,905,788)  (16,481,089)  (16,982,196)   (51,362,241)   (3,843,133)  (1,885,678)   (53,247,919)
INVESTING ACTIVITIES
Purchases of securi-
 ties available-for-
 sale.................   (12,358,422)   (7,555,482)  (13,165,743)   (48,912,098)          --    (2,823,296)   (51,735,394)
Proceeds from sales of
 securities available-
 for-sale.............           --     11,034,146     3,856,167     14,890,313     2,587,322          --      14,890,313
Proceeds from maturi-
 ties of securities
 available-for-sale...    13,267,270     2,048,016     1,059,296     18,660,787     1,010,631    3,974,000     22,634,787
Purchase of property
 and equipment........    (4,030,711)   (1,654,517)     (204,424)   (10,288,296)      (54,223)    (398,752)   (10,687,048)
Dispositions of prop-
 erty and equipment...           --        114,993        36,476        151,469           --           --         151,469
                        ------------  ------------  ------------   ------------   -----------  -----------   ------------
Net cash provided by
 (used in) investing
 activities...........    (3,121,863)    3,987,156    (8,418,228)   (25,497,825)    3,543,730      751,952    (24,745,873)
FINANCING ACTIVITIES
Sales of common stock
 to founders..........           --            --            --          80,000           --           --          80,000
Proceeds of borrowings
 from stockholder.....           --            --            --         850,000           --           --         850,000
Sale of preferred
 stock via private
 placement, net of of-
 fering costs.........           --            --     30,496,204     30,496,204    23,855,209          --      30,496,204
Sale of common stock
 via private place-
 ments, net of offer-
 ing costs............    12,326,885       701,677        67,000     49,307,084           --           --      49,307,084
Repurchase of common
 stock................        (2,522)          --            --          (2,522)          --           --          (2,522)
Proceeds from common
 stock options exer-
 cised................           --          1,375        56,264         57,639         5,250       20,910         78,549
Repayment of long-term
 obligations..........      (410,816)   (3,940,830)   (2,954,434)    (7,312,081)     (531,011)    (194,565)    (7,506,646)
Change in deferred of-
 fering costs.........           --       (458,726)      458,726            --            --           --             --
Proceeds from the is-
 suance of long-term
 obligations..........     5,000,000     3,515,334     1,800,000     10,315,334           --           --      10,315,334
                        ------------  ------------  ------------   ------------   -----------  -----------   ------------
Net cash provided by
 (used in) financing
 activities...........    16,913,547      (181,170)   29,923,760     83,791,658    23,329,448     (173,655)    83,618,003
                        ------------  ------------  ------------   ------------   -----------  -----------   ------------
Net increase (de-
 crease) in cash and
 cash
 equivalents..........      (114,104)  (12,675,103)    4,523,336      6,931,592    23,030,045   (1,307,381)     5,624,211
Cash and cash equiva-
 lents at beginning of
 period...............    15,197,463    15,083,359     2,408,256            --      2,408,256    6,931,592            --
                        ------------  ------------  ------------   ------------   -----------  -----------   ------------
Cash and cash equiva-
 lents at end of peri-
 od...................  $ 15,083,359  $  2,408,256  $  6,931,592   $  6,931,592   $25,438,301  $ 5,624,211   $  5,624,211
                        ============  ============  ============   ============   ===========  ===========   ============
SUPPLEMENTAL SCHEDULE
 OF NONCASH INVESTING
 AND FINANCING
 ACTIVITIES:
 Acquisition of equip-
  ment pursuant to
  capital lease obli-
  gations.............  $    147,053  $        --   $        --    $    276,893   $       --   $       --    $    276,893
                        ============  ============  ============   ============   ===========  ===========   ============
 Conversion of
  convertible debt and
  related accrued
  interest into common
  stock...............  $        --   $        --   $        --    $    875,918   $       --   $       --    $    875,918
                        ============  ============  ============   ============   ===========  ===========   ============
SUPPLEMENTAL
 DISCLOSURE OF CASH
 FLOW INFORMATION:
 Cash paid during the
  period for
  interest............  $    101,658  $    476,845  $    529,847   $  1,111,491   $   151,717  $   158,038   $  1,269,529
                        ============  ============  ============   ============   ===========  ===========   ============
</TABLE>
    
 
                            See accompanying notes.
 
                                      F-6

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                         NOTES TO FINANCIAL STATEMENTS
 
                               DECEMBER 31, 1995
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
 1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
 Description of Business
 
  Cell Therapeutics, Inc. (the "Company") is a development stage
biopharmaceutical company that focuses on the discovery, development, and
commercialization of small molecule drugs that modulate the production of cell
membrane lipids called phosphatidic acids for the treatment of cancer and
inflammatory and immune diseases. The Company's principal business strategy is
to focus its development activities on therapeutic areas that represent large
market opportunities not adequately served by existing therapies. The Company
incorporated on September 4, 1991, but did not commence operations until
February 1992.
 
  The Company operates in a highly regulated and competitive environment. The
manufacturing and marketing of pharmaceutical products require approval from
and are subject to ongoing oversight by the Food and Drug Administration in
the United States and by comparable agencies in other countries. Obtaining
approval for a new therapeutic product is never certain and may take several
years and involve expenditure of substantial resources. Competition in
researching, developing, and marketing pharmaceutical products is intense. Any
of the technologies covering the Company's existing products under development
could become obsolete or diminished in value by discoveries and developments
of other organizations.
 
 Interim Financial Information
 
  The financial information at March 31, 1996 and for the three months ended
March 31, 1995 and 1996 is unaudited, but includes all adjustments (consisting
only of normal recurring adjustments) that the Company considers necessary for
a fair presentation of the financial position at such date and the operating
results and cash flows for those periods. Operating results for the three
months ended March 31, 1996 are not necessarily indicative of the results that
may be expected for the entire year.
 
 Cash and Cash Equivalents
 
  The Company considers all highly liquid debt instruments with maturities of
three months or less at the time acquired to be cash equivalents. Cash
equivalents represent short-term investments consisting of investment-grade
corporate and government obligations, carried at cost, which approximates
market value.
 
 Securities Available-for-Sale
 
  Management determines the appropriate classification of debt securities at
the time of purchase. Management currently classifies its investment portfolio
as available-for-sale and carries the securities at fair value, with
unrealized gains and losses included within the deficit accumulated during
development stage. The amortized cost of debt securities in this category is
adjusted for amortization of premiums and accretion of discounts to maturity.
Such amortization and accretion are included in investment income. Realized
gains and losses and declines in value judged to be other than temporary on
available-for-sale securities are included in investment income. The cost of
securities sold is based on the specific identification method. Securities
available-for-sale collateralizing the noncurrent portion of December 31, 1994
long-term obligations are shown as noncurrent assets on the balance sheet (see
Note 7). Interest on securities classified as available-for-sale is included
in investment income.
 
                                      F-7

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)

 1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
 
 Management of Credit Risk
 
  The Company is subject to concentration of credit risk from its cash
investments. Under the Company's investment guidelines, credit risk is managed
by diversification of the investment portfolio and by the purchase of
investment-grade securities.
 
 Property and Equipment
 
  Property and equipment, including assets pledged as security in financing
agreements, are carried at cost, less accumulated depreciation and
amortization. Leasehold improvements are amortized over the term of the
applicable lease using the straight-line method (ten years). Depreciation
commences at the time assets are placed in service and is computed using the
straight-line method over the estimated useful lives of the assets (three to
seven years).
 
 Deferred Offering Costs
 
  The Company records legal and other issuance costs related to its offerings
of stock as deferred offering costs until the offerings are completed and the
costs are netted against gross proceeds.
 
 Stock-Based Compensation
 
  In October 1995, the Financial Accounting Standards Board issued Statement
No. 123, "Accounting for Stock-Based Compensation." Statement No. 123 is
effective for fiscal years beginning after December 15, 1995. Under Statement
No. 123, stock-based compensation expense is measured using either the
intrinsic value method, as prescribed by Accounting Principles Board Opinion
No. 25, or the fair value method described in Statement No. 123. Companies
choosing the intrinsic value method will be required to disclose the pro forma
impact of the fair value method on net income and earnings per share. The
Company plans to implement Statement No. 123 in 1996 using the intrinsic value
method.
 
  Accordingly, there will be no effect of adopting Statement No. 123 on the
Company's financial position and results of operations.
 
 Net Loss Per Share
   
  Net loss per share is computed using the weighted average number of shares
of common stock outstanding. Common stock equivalents from preferred stock,
stock options, and warrants are excluded from the computation as their effect
is antidilutive.     
       
                                      F-8

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
 1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
       
 Use of Estimates
 
  The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.
 
 2.  SECURITIES AVAILABLE-FOR-SALE
 
  Securities available-for-sale consist of the following as of December 31:
 

<TABLE>
<CAPTION>
                               1994                        1995
                            ---------- ---------------------------------------------
                                                     GROSS      GROSS
                            AMORTIZED   AMORTIZED  UNREALIZED UNREALIZED
                               COST       COST       GAINS      LOSSES   FAIR VALUE
                            ---------- ----------- ---------- ---------- -----------
   <S>                      <C>        <C>         <C>        <C>        <C>
   U.S. Government obliga-
    tions.................. $3,524,656 $ 2,026,138  $   272    $   --    $ 2,026,410
   Corporate obligations...  3,197,816  12,924,114   29,639     (5,733)   12,948,020
                            ---------- -----------  -------    -------   -----------
                             6,722,472 $14,950,252  $29,911    $(5,733)  $14,974,430
                                       ===========  =======    =======   ===========
   Less portion classified
    as noncurrent (Note 7)     446,885
                            ----------
                            $6,275,587
                            ==========
</TABLE>

   
  Securities available-for-sale consist of the following as of March 31, 1996:
    

<TABLE>     
<CAPTION>
                                              GROSS      GROSS
                                 AMORTIZED  UNREALIZED UNREALIZED
                                   COST       GAINS      LOSSES   FAIR VALUE
                                ----------- ---------- ---------- -----------
   <S>                          <C>         <C>        <C>        <C>
   U.S. Government obliga-
    tions...................... $   511,312  $   --     $  (156)  $   511,156
   Corporate obligations.......  13,260,359   12,990     (5,604)   13,267,745
                                -----------  -------    -------   -----------
                                $13,771,671  $12,990    $(5,760)  $13,778,901
                                ===========  =======    =======   ===========
</TABLE>
    
   
  Amortized cost of securities available-for-sale at December 31, 1994
approximated fair value. As of December 31, 1995, the securities available-
for-sale had contractual maturities of less than one year. As of March 31,
1996, $11,561,402 of the securities available-for-sale had contractual
maturities of less than one year, and the remaining $2,217,499 had contractual
maturities of less than fifteen months. Expected maturities will differ from
contractual maturities because issuers of the securities may have the right to
prepay obligations without prepayment penalties.     
 
                                      F-9

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
 3. PROPERTY AND EQUIPMENT
 
  Property and equipment is composed of the following as of December 31:
 

<TABLE>
<CAPTION>
                                                           1994        1995
                                                        ----------- -----------
   <S>                                                  <C>         <C>
   Leasehold improvements.............................. $ 4,276,027 $ 4,288,000
   Lab equipment.......................................   3,402,617   3,468,103
   Furniture and office equipment......................   2,544,980   2,577,024
                                                        ----------- -----------
                                                         10,223,624  10,333,127
   Less accumulated depreciation and amortization......   2,997,424   4,619,900
                                                        ----------- -----------
                                                        $ 7,226,200 $ 5,713,227
                                                        =========== ===========
</TABLE>

 
  As of December 31, 1994 and 1995, furniture and office equipment included
$276,893 of equipment acquired under capitalized leases. Accumulated
depreciation related to this equipment totaled $92,167 and $147,545 at
December 31, 1994 and 1995, respectively.
 
 4.  EQUITY OFFERINGS
   
  In 1992, the Company completed its first private placement offering. Total
gross proceeds amounted to $38,550,792, representing 7,787,114 shares of the
Company's common stock, including the required conversion of amounts advanced
(principal and interest of $850,000 and $25,918, respectively) from a
principal stockholder aggregating 175,184 shares.     
   
  In 1993, the Company concluded a second round of equity financing through a
private offering of common stock and warrants at $9 per unit. Each unit
consisted of one share of common stock and a warrant to purchase one-half
share of common stock. The warrants have an exercise price of $11 per share
and expire in 1996. Total gross proceeds of the second round of equity
financing amounted to $13,813,268, representing 1,534,809 shares of common
stock and warrants to purchase 767,404 shares of common stock, including
74,388 shares of common stock and warrants to purchase 37,194 shares of common
stock sold to the sales agents and their affiliates (including an affiliated
sales agent, whose chief executive officer was a principal stockholder of the
Company).     
   
  Offering costs related to the first and second offerings included $2,052,268
and $228,982, respectively, paid to the affiliated sales agent. In connection
with the offerings, the sales agents received warrants to purchase 755,194
shares of common stock at $5 per share, expiring in 1997 (including warrants
to purchase 587,303 shares of common stock issued to the affiliated sales
agent) and warrants to purchase 148,481 shares of common stock at $9 per
share, expiring in 1998 (including warrants to purchase 26,384 shares of
common stock issued to the affiliated sales agent).     
   
  In 1994, the Company sold additional units of common stock and warrants
under terms equivalent to those of the second round of equity financing. The
Company received gross proceeds of $787,500, representing 87,500 shares of
common stock and warrants to purchase 43,750 shares of common stock at $11 per
share, expiring in 1996. Offering costs included $28,613 paid to the
affiliated sales agent. In addition, the sales agents received warrants to
purchase 8,750 shares of common stock at $9 per share, expiring in 1999
(including warrants to purchase 3,750 shares of common stock issued to the
affiliated sales agent).     
 
                                     F-10

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
 4.  EQUITY OFFERINGS (CONTINUED)
   
  In 1995, the Company concluded a third round of equity financing through a
private offering of Series A Convertible Preferred Stock ("Convertible
Preferred Stock") at $335 per share. Total gross proceeds of the offering
amounted to $31,974,745, representing 95,447.004 shares of Convertible
Preferred Stock. As of December 31, 1994, approximately $459,000 of offering
costs were recorded as deferred offering costs. Holders of Convertible
Preferred Stock have preferential rights to noncumulative dividends ($33.50
per share per annum) when and if declared by the Board of Directors, and a
liquidation preference of $335 per share. Each share of Convertible Preferred
Stock is convertible into 100 shares of common stock at a conversion price of
$3.35 per share (the "Conversion Price"), subject to adjustment upon the
occurrence of certain dilutive events, and is automatically converted into
common stock upon the occurrence of certain events, including the closing of
an initial public offering of the Company's common stock at a price per share
of not less than $5 and an aggregate offering price of not less than $20
million. In May 1996 the holders of the Convertible Preferred Stock consented
to the automatic conversion of all of the outstanding shares of Convertible
Preferred Stock upon the closing of an initial public offering of the
Company's common stock at a price per share of not less than $3.40 and an
aggregate offering price to the public of not less than $20,000,000 on or
prior to September 30, 1996. The Conversion Price will be adjusted to the
price of any subsequent equity sales which are less than the Conversion Price,
until the Company has sold specified minimum amounts of equity securities at a
price in excess of the Conversion Price. The shares of common stock issuable
upon conversion of the Convertible Preferred Stock have certain registration
rights. The Convertible Preferred Stock has the right to vote with the common
stock on an as-converted basis, and voting as a separate class, is entitled to
elect one director. As of December 31, 1995, the Company had reserved
9,544,700 shares of common stock for issuance upon the conversion of the
Convertible Preferred Stock.     
 
 5.  CONSULTING AND EMPLOYMENT AGREEMENTS
 
 Directors, Officers, and Employees
 
  The Company has entered into employment agreements with its chief executive
officer and two other founding officers. The agreements expire in 1996, 1997,
and 1998 and provide for annual base salaries (approximately $797,000 in the
aggregate as of December 31, 1995), minimum annual and cost-of-living
increases, and discretionary incentive bonus awards.
   
  In December 1993, the Board of Directors authorized a loan of $200,000 to
the Company's chief executive officer. The loan accrues interest at 5.35%,
with interest and principal due no later than July 1, 1997. The loan is
secured by 20,000 shares of common stock.     
   
  In 1992, the Company granted its chairman warrants to purchase 200,000
shares of common stock at $5 per share.     
   
  In 1994, the Company authorized a non-interest bearing loan of up to
$150,000 to its Executive Vice President, Product Development in connection
with relocation. In 1995, $120,000 was advanced under the terms of the loan,
of which $45,000 was forgiven and treated as compensation expense.     
 
  In addition to the employment agreements with the corporate officers
discussed above, the Company has entered into employment agreements with
certain employees, whose employment agreement terms generally range from three
to four years. The employment agreements can be terminated with cause, as
defined in the agreements, upon 30 days' notice.
 
                                     F-11

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
 5.  CONSULTING AND EMPLOYMENT AGREEMENTS (CONTINUED)
 
 Advisory Boards
   
  The Company has entered into consulting agreements with the members of its
Scientific and Clinical Advisory Boards ("Advisory Boards") providing for
aggregate annual fees of $84,000 and the issuance of 80,000 shares of common
stock (a component of the 995,500 pool shares discussed in Note 8) and options
to purchase 260,000 shares of common stock at $3.35 to $5 per share, all of
which vest ratably over two to three years from the date of appointment. The
consulting agreements with members of the Advisory Boards are cancelable upon
30 days' notice.     
 
 Other Consultants
 
  The Company retained one of its private equity offering sales agents as a
consultant. Beginning August 1992, the consultant received an annual fee of
$100,000 for a term not less than the period during which the consultant and
its affiliates own, in aggregate, at least 75% of their original allocation of
founders' stock. The chief executive officer of such sales agent was a
principal stockholder of the Company. General and administrative expense
associated with this fee totaled $93,972 for the year ended December 31, 1993.
Payments under this consulting agreement terminated in 1993.
 
  In addition, the Company retained an affiliate of such sales agent as a
consultant. General and administrative expense associated with this fee
totaled $90,000 in 1993. The consulting agreement was terminated in 1994.
 
 6.  CONTRACTUAL ARRANGEMENTS AND COMMITMENTS
 
 Licensed Technology
   
  In March 1992, the Company entered into agreements with the Fred Hutchinson
Cancer Research Center ("FHCRC") under the terms of which the Company has
received worldwide licenses and options to technology, or technology claimed,
for five U.S. patent applications. The Company paid initial license fees
totalling $100,000 and issued 268,000 shares of common stock valued at $3,200
to the FHCRC for such technology. The initial license fee and value of the
stock granted to the FHCRC were expensed as in-process research and
development. The Company is obligated to pay royalties on revenues resulting
from future sales of products employing the technology and on revenues
received from sublicenses for the technology, with minimum annual royalties of
$50,000 prior to, and $100,000 after, the first commercial sale of such
products. The agreements are for a term equal to the later of 15 years or the
expiration of the last issued patent included within the licensed technology,
unless terminated earlier for certain specified events, including the failure
of the Company to take reasonable efforts to engage in research and
development with respect to the licensed technology.     
 
 Facilities Lease
 
  The Company has executed noncancelable operating leases for office and
laboratory space that generally expire the first quarter of 2003, with two
five-year renewal options at the then-current market rates. The lessor
provided $450,000 for leasehold improvements and rent concessions, which is
being amortized over the initial lease term. Rent expense amounted to
$719,514, $977,778, and $993,471 for the years ended December 31, 1993, 1994,
and 1995, respectively.
 
                                     F-12

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)

 6.  CONTRACTUAL ARRANGEMENTS AND COMMITMENTS (CONTINUED)
 
  Future minimum annual rental payments under the leases approximate the
following for the years ended December 31:
 

<TABLE>
             <S>                            <C>
             1996.......................... $  882,000
             1997..........................    925,000
             1998..........................    994,000
             1999..........................  1,001,000
             2000..........................  1,001,000
             Thereafter....................  2,084,000
                                            ----------
                                            $6,887,000
                                            ==========
</TABLE>

 
 7.  LONG-TERM OBLIGATIONS
 
  Long-term obligations consisted of the following at December 31:
 

<TABLE>
<CAPTION>
                                                             1994       1995
                                                          ---------- ----------
   <S>                                                    <C>        <C>
   Master financing agreements:
     Due December 1998, monthly payments of $55,827,
      including interest at 14.7%........................ $2,015,334 $1,616,295
     Due December 1998, monthly payments of $45,820,
      including interest at 17.6%........................        --   1,274,342
     Due December 1996, monthly payments of $21,944,
      including interest at 17.6%........................        --     239,847
   Note payable to bank, repaid in 1995..................  2,216,668        --
   Capital lease obligations.............................    202,581    149,667
   Deferred rent.........................................    406,673    440,067
                                                          ---------- ----------
                                                           4,841,256  3,720,218
   Less current portion..................................  2,221,735  1,114,520
                                                          ---------- ----------
                                                          $2,619,521 $2,605,698
                                                          ========== ==========
</TABLE>

   
  In December 1994, the Company entered into a master financing agreement with
a financing company, whereby the Company borrowed $2,015,334 in exchange for
granting the lessor a security interest in approximately the same net book
value of specific fixed assets and warrants to purchase 43,513 shares of
common stock at $3.685 per share.     
 
  In July 1995, the Company entered into master financing agreements with
another finance company, whereby the Company borrowed $1,450,000 over 42
months and $350,000 over 18 months in exchange for granting the lessor a
security interest in approximately the same net book value of specific fixed
assets.
 
  As of December 31, 1994, the note payable to bank was collateralized by
$2,216,668 of the Company's securities available-for-sale (of which $446,885
was considered noncurrent). The Company paid off the note payable to bank
during 1995 with the proceeds of the master lease agreements.
 
  Annual maturities of the master financing agreements for 1996 through 1998,
respectively, approximate $1,055,000, $955,000, and $1,120,000.
 
                                     F-13

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
 8.  CAPITAL STOCK
   
  In connection with the formation of the Company, certain stockholders
contributed 995,500 shares of common stock to a pool to be issued to the
FHCRC, the Scientific Advisory Board ("SAB"), and key employees. (Refer to
Notes 5 and 6 with regards to the stock issued to the SAB and the FHCRC.) From
this pool, 268,000, 80,000, and 172,500 shares were distributed to the FHCRC,
SAB, and key employees, respectively. As of December 31, 1992, 117,000
undistributed shares reverted back to the contributing stockholders. The
shares issued to key employees are subject to forfeiture and cancellation in
the event such individuals' employment agreements are terminated. As of
December 31, 1995, 36,250 shares of common stock issued to key employees were
deemed restricted stock and, in certain resignation/termination-related
circumstances, are subject to cancellation. The restrictions on the stock
expire in 1996.     
   
  As of December 31, 1995, 216,656 shares of common stock owned by certain of
the founding officers were deemed restricted stock and, in certain
termination-related circumstances, are subject to repurchase by the Company at
$.01194 per share. The restrictions on the stock expire in February and April
1996.     
   
  In August 1993, the Company repurchased 211,198 shares of common stock at
$.01194 per share from one of its founders pursuant to a stock repurchase
agreement.     
       
 9.  STOCK OPTIONS AND WARRANTS
 
 Stock Options
   
  In 1994, stockholders approved the 1994 Equity Incentive Plan (the "1994
Plan") in replacement of the 1992 Stock Option Plan (the "1992 Plan"). The
1994 Plan provides for (a) the grant of incentive stock options (with terms
not to exceed 10 years), nonstatutory stock options and stock appreciation
rights, (b) the award of stock bonuses, (c) the sale of stock, and (d) any
other equity-based or equity-related awards which the Plan Administrator
determines to be consistent with the purpose of the 1994 Plan and the
interests of the Company. Option-vesting schedules are specified by the Plan
Administrator. The number of shares available for future grant under the 1994
Plan is the number of shares of common stock available for issuance under the
1992 Plan at the time of approval of the 1994 Plan (622,977), plus such shares
for which options previously granted under the 1992 Plan may expire,
terminate, or be canceled. The 1994 Plan also provides for the automatic grant
of nonstatutory options to nonemployee directors.     
   
  In April 1995, the Board of Directors approved the repricing of outstanding
options to $3.35 per share by exchanging such outstanding options for a fewer
number of options pursuant to a Black-Scholes formula. Subsequently, options
for 1,521,324 shares, with prices of $5 and $9 per share, were exchanged for
1,319,925 options with a price of $3.35 per share. All other terms and
conditions of the options remained unchanged. These amounts have been included
as granted and canceled options in the summary activity table as shown below.
       
  In May 1995, the stockholders approved a 864,105 share increase in the
number of shares reserved for issuance under the 1994 Plan. As of December 31,
1995, the Company had reserved 2,886,952 shares of common stock for issuance
under the 1992 and 1994 Plans, of which 1,121,260 were exercisable and 221,374
were available for future grant. In April 1996 the stockholders approved a
1,775,000 share increase in the number of shares reserved for issuance under
the 1994 Plan.     
 
                                     F-14

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
 9.  STOCK OPTIONS AND WARRANTS (CONTINUED)
 
  A summary of the activity related to the 1992 and 1994 Plans follows:
 

<TABLE>     
<CAPTION>
                                                          SHARES
                                                          UNDER       OPTION
                                                          OPTION      PRICES
                                                        ----------  -----------
   <S>                                                  <C>         <C>
   Balance December 31, 1993, unexercised..............  1,416,423  $5.00-$9.00
     Granted...........................................    216,895         9.00
     Canceled..........................................    (38,233)  5.00- 9.00
     Exercised.........................................       (275)        5.00
                                                        ----------
   Balance December 31, 1994, unexercised..............  1,594,810   5.00- 9.00
     Granted...........................................  2,852,802         3.35
     Canceled.......................................... (1,765,756)  3.35- 9.00
     Exercised.........................................    (16,278)  3.35- 5.00
                                                        ----------
   Balance December 31, 1995, unexercised..............  2,665,578   3.35- 9.00
     Granted...........................................     83,013         3.35
     Canceled..........................................    (45,926)  3.35- 9.00
     Exercised.........................................     (6,242)        3.35
                                                        ----------
   Balance March 31, 1996, unexercised.................  2,696,423   3.35- 9.00
                                                        ==========
</TABLE>
    
 
 Warrants
   
  During 1995, the Company offered to exchange shares of common stock for
outstanding warrants to purchase common stock, issuing 365,368 shares of
common stock in exchange for warrants to purchase 1,550,415 shares of common
stock. A summary of the warrants to purchase common stock which remain
outstanding (and for which common stock is reserved for issuance) is as
follows as of December 31, 1995:     
 
 

<TABLE>             
<CAPTION>
            SHARES OF
             COMMON                 PRICE PER SHARE OF
              STOCK                    COMMON STOCK                            EXPIRATION
            ---------               ------------------                         ----------
            <S>                     <C>                                        <C>
             142,682                      $11.00                                  1996
             242,472                        5.00                                  1997
              27,773                        9.00                                  1998
               3,750                        9.00                                  1999
             -------
             416,677
             =======
</TABLE>
    
 
 Employee Stock Purchase Plan
   
  In April 1996 the stockholders approved the adoption of the 1996 Employee
Stock Purchase Plan (the "Purchase Plan"). A maximum of 1,000,000 shares of
the Company's common stock will be reserved for purchase under the Purchase
Plan, under which eligible employees may purchase a limited number of shares
of the Company's common stock at 85% of fair market value.     
 
                                     F-15

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                 (INFORMATION AS OF MARCH 31, 1996 AND FOR THE
           THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
10.  INCOME TAXES
 
  The Company follows Statement of Financial Accounting Standards No. 109,
"Accounting for Income Taxes," which requires an asset and liability approach
for financial accounting and reporting for income taxes. The standard requires
that deferred tax liabilities and assets be adjusted currently for effects of
changes in tax laws or rates.
 
  As of December 31, 1995, the Company had net operating tax loss
carryforwards of approximately $57,457,000 and research and development credit
carryforwards of approximately $1,667,000. The carryforwards begin to expire
in the year 2007. The utilization of net operating loss and credit
carryforwards is subject to an annual limitation under Section 382 of the
Internal Revenue Code of 1986, as amended, of approximately $7.6 million.
 
  Deferred income taxes reflect the net tax effects of temporary differences
between the carrying amounts of assets and liabilities for financial reporting
purposes and the amounts used for income tax purposes. The Company has
recognized a valuation allowance equal to the deferred tax assets due to the
uncertainty of realizing the benefits of the assets. The Company's valuation
allowance increased $7,332,000 and $6,928,000 during 1994 and 1995,
respectively. Significant components of the Company's deferred tax liabilities
and assets as of December 31 are as follows:
 

<TABLE>
<CAPTION>
                                                           1994        1995
                                                        ----------- -----------
   <S>                                                  <C>         <C>
   Deferred tax assets:
     Net operating loss carryforwards.................  $13,328,000 $19,535,000
     Research and development tax credit
      carryforward....................................    1,116,000   1,667,000
     Accruals on financial statements in excess of tax
      returns.........................................      260,000     301,000
     Depreciation in financial statements in excess of
      tax returns.....................................       20,000     149,000
                                                        ----------- -----------
   Net deferred tax assets............................  $14,724,000 $21,652,000
                                                        =========== ===========
   Valuation allowance for deferred tax assets........  $14,724,000 $21,652,000
                                                        =========== ===========
</TABLE>

 
11.  SIGNIFICANT AGREEMENTS
 
  On March 7, 1995, the Company and BioChem Therapeutic Inc. ("BioChem"), a
wholly owned subsidiary of BioChem Pharma, Inc., signed collaboration and
supply agreements (the "BioChem Collaboration Agreement" and the "BioChem
Supply Agreement" respectively). The BioChem Collaboration Agreement grants an
exclusive license to enable BioChem to seek Canadian regulatory approval for,
and to use and sell, the Company's Lisofylline and/or CT-2584 compounds (and
compositions thereof) (collectively, the "CTI Compounds") in Canada.
 
  Under the BioChem Collaboration Agreement, BioChem purchased 7,462.687
shares of preferred stock for $2,500,000 in the Company's third private equity
offering. In addition, the Company is entitled to receive payments for each of
the CTI Compounds upon the satisfaction of specified product development
milestones and royalties on all sales, if any. The BioChem Collaboration
Agreement terminates upon the expiration of the last to expire patents
covering the CTI Compounds or, absent a patent, upon the tenth anniversary of
the first commercial sale of such CTI Compound. The Company recorded a
milestone payment of $100,000 under the BioChem Collaboration Agreement in
1995.
 
                                     F-16

<PAGE>
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
 
                  NOTES TO FINANCIAL STATEMENTS--(CONTINUED)
 
                     (INFORMATION AS OF MARCH 31, 1996 AND
       FOR THE THREE MONTHS ENDED MARCH 31, 1995 AND 1996 IS UNAUDITED)
 
11.  SIGNIFICANT AGREEMENTS (CONTINUED)
 
  Under the BioChem Supply Agreement, the Company is to supply to BioChem the
CTI Compounds at a percentage mark-up above cost. The BioChem Supply Agreement
terminates 20 years from the date of termination of the BioChem Collaboration
Agreement with respect to each of the CTI Compounds.
   
  In October 1995, the Company purchased all of the intellectual property of
Lipomed Corporation ("Lipomed") from its shareholders and expensed the
purchase price as in-process research and development expense. The purchase
price was $1,155,750 consisting of 345,000 shares of common stock. The
agreement also provides for a possible future payment to Lipomed of $100,000
upon the occurrence of certain events.     
 
  During the quarter ended March 31, 1996, the Company entered into an
agreement with Schering AG ("Schering") pursuant to which, among other things,
the Company and Schering would collaborate in the funding, research,
development and commercialization of Lisofylline and CT-2584 on the terms and
conditions specified therein. Upon execution of the agreement, Schering paid
the Company a $3,000,000 non-refundable signing fee. The remainder of the
agreement was contingent upon Schering finding the clinical trial results and
related data from the Company's Phase II/III BMT trial acceptable within
thirty days after its receipt. The Company furnished Schering with this data
in late February 1996. On April 2, 1996, after a mutual extension of the
thirty-day review period, Schering informed the Company that it did not wish
to activate the agreement. There were no such revenues in the comparable
quarter ended March 31, 1995.
 
                                     F-17





<PAGE>
 
                                                                     EXHIBIT 4.1

                                      CTI
                            CELL THERAPEUTICS, INC.


            INCORPORATED UNDER THE LAWS OF THE STATE OF WASHINGTON

                                                                SEE RESTRICTIONS
                                                                    ON REVERSE


This Certifies that
 







is the owner of




          FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF
                            CELL THERAPEUTICS, INC.

transferable only on the books of the corporation by the holder hereof in 
person or by a duly authorized Attorney upon surrender of this Certificate 
properly endorsed.  This Certificate is not valid until countersigned and 
registered by the Transfer Agent and Registrar.
     In Witness Whereof, the said Corporation has caused this Certificate to be 
signed by its duly authorized officers and to be sealed with this Seal of the 
Corporation.

Dated:



/s/                         [Corporate Seal]     /s/ James Bianco
- ----------------------                             ----------------------
 Secretary                                           President


COUNTERSIGNED AND REGISTERED:
    HARRIS TRUST COMPANY OF CALIFORNIA
           TRANSFER AGENT AND REGISTRAR
BY

           AUTHORIZED SIGNATURE  




<PAGE>
 
    The securities represented hereby have not been registered under United 
States federal or state securities laws and may not be offered for sale, sold or
otherwise transferred or assigned for value, directly or indirectly, nor may the
securities be transferred on the books of the Corporation, without registration 
of such securities under
 all applicable United States federal or state 
securities laws or compliance with an applicable exemption therefrom, such 
compliance at the option of the Corporation, to be evidenced by an opinion of 
shareholder's counsel, in form acceptable to the Corporation, that no violation 
of such registration provisions would result from any proposed transfer or 
assignment.
 
    The Corporation will furnish to any shareholder upon request and without 
charge a full statement of the designations, preferences, limitations and 
relative rights of the Common Stock and Preferred Stock that the Corporation is 
authorized to issue.

    The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations. Additional abbreviations may also
be used though not in the list.

  TEN COM - as tenants in common     UNIF GIFT MIN ACT      Custodian   (Minor) 
                                                       ----          ---
  TEN ENT - as tenants by the        under Uniform Gifts to Minors Act   (State)
            entireties                                                 --
  JT TEN  - as joint tenants with right of 
            survivorship and not as tenants
            in common
                                                         PLEASE INSERT 
For value received, the undersigned hereby sells,        SOCIAL SECURITY
assigns and transfers unto                               OR OTHER IDENTIFYING
                                                         NUMBER OF ASSIGNEE

- ------------------------------------------------------------------------------
            PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS OF ASSIGNEE

- ------------------------------------------------------------------------------


- -------------------------------------------------------------------------Shares

represented by the within Certificate, and hereby irrevocably constitutes and
appoints----------------------------------------------------------------------
Attorney to transfer the said shares on the books of the within-named
Corporation with full power of substitution on the premises.

Dated 
     ----------

        In presence of

- -----------------------------------


- -----------------------------------
Signature(s) Guaranteed:



By

THE SIGNATURE(S) SHOULD BE GUARANTEED 
BY AN ELIGIBLE GUARANTOR INSTITUTION.
(BANKS, STOCKBROKERS, SAVINGS AND 
LOAN ASSOCIATIONS AND CREDIT UNIONS WITH
MEMBERSHIP IN AN APPROVED SIGNATURE 
GUARANTEE MEDALLION PROGRAM), PURSUANT TO
S.E.C. RULE 17Ad-15.



NOTICE: THE SIGNATURE IN THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS 
WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR WITHOUT ALTERATION
OR ENLARGEMENT, OR ANY CHANGE WHATEVER.



<PAGE>
 
                                                                    Exhibit 10.4


                             EMPLOYMENT AGREEMENT
                             --------------------


          THIS EMPLOYMENT AGREEMENT (the "Agreement") is entered into as of the 
1st day of February, 1992, by and between JAMES A. BIANCO, M.D. ("Employee"), 
and COMBINED THERAPEUTICS, INC., a Washington corporation (the "Company").  In 
consideration of the mutual covenants and conditions set forth herein, the 
parties hereby agree as follows:

          1.   Employment.  The Company hereby employs Employee to serve as its 
               ---------- 
President and Chief Executive Officer and Employee hereby accepts such 
employment.  In his capacity as President and Chief Executive Officer, Employee 
shall be responsible for developing and presenting Company strategies and 
potential products or technologies, negotiating licensing and sublicensing 
agreements, and directing product research and overall corporate direction.  
Employee's duties will also include coordinating planning leading to the 
development of research facilities and business offices, in addition to 
overseeing daily operations of the physical/corporate plant.  As President and 
Chief Executive Officer, Employee agrees to perform such other duties during the
term hereof as the Board of Directors of the Company shall, from time to time, 
reasonably direct.
  Employee agrees to utilize his skills and to render 
services to the best of his ability on a full-time basis during the term of this
Agreement.

          2.   Term.  Unless earlier terminated pursuant to the provisions of 
               ----
paragraph 6 below, Employee's employment hereunder shall be for a period of five
years commencing on the date hereof.

          3.   Compensation.
               ------------

               a.   Base Salary.  For all services rendered by Employee under 
                    -----------
this Agreement, Employee shall receive a salary at an annual rate of $170,900, 
as increased under Paragraph 3b, 3c, and 4c ("Base Salary"), or such higher 
annual rate as the Board of Directors of the Company may from time to time 
establish in its sole discretion.

               b.   Annual Increases.  The Base Salary shall be increased at the
                    ----------------
end of each year of service by an amount equal to (i) a percentage equal to the
increase, if any, in the United States Department of Labor Consumer Price Index 
for Seattle, Everett urban areas, all items, over the previous twelve months, 
plus (ii) 10%, or such greater amount as the Board of Directors

<PAGE>
 
shall determine.  If the index specified in this paragraph is discontinued or 
not available, a substitute index shall be selected by arbitration in the manner
contemplated by Paragraph 6e unless the parties mutually agree on a substitute 
index.

                c.      Annual Bonuses.   Employee shall receive such annual 
                        --------------
bonuses as may be declared from time to time by the Board of Directors in its 
sole discretion.

                d.      Stock Option Plans.  The Company intends to adopt stock 
                        ------------------        
option and/or stock purchase plans for the benefit of certain employees of the 
Company.  Employee shall be entitled to participate in such plans, consistent 
with the terms of such plans and applicable law.

        4.      Benefits.  
                --------

                a.      Medical/Health Insurance.   The Company shall provide 
                        ------------------------
Employee with Company paid medical and dental insurance for Employee, his spouse
and dependents in accordance with such policies as shall be maintained by the 
Company, which shall be comparable to that enjoyed by Employee immediately prior
to accepting employment hereunder.

                b.      Vacation/Sick Leave.       Employee shall be entitled 
                        -------------------
to vacation and sick leave in accordance with Company policy, provided, Employee
                                                              -------- 
shall be entitled to (i) a minimum of three (3) weeks vacation time during the
first two (2) years of service and a minimum or four (4) weeks thereafter, and
(ii) a minimum of three (3) days of paid sick leave for each ten (10) weeks of
consecutive employment. Vacation and sick leave not used shall accumulate and
shall be paid to Employee upon termination of employment for any reason.

                c.     Life/Disability Insurance. The Company shall provide, at
                       -------------------------
Company expense, term life insurance for the benefit of Employee in accordance 
with a plan for executive officers of the Company.  The Company's benefit plan 
for executive officers shall provide, at Employee's expense, disability 
insurance for the benefit of Employee and his beneficiaries through a company 
reasonably acceptable to Employee.  Employee's Base Salary shall be increased by
the amount of the annual premium for such coverage.  The Company shall cause its
records to reflect that the premiums for the disability policy have been paid by
the Employee, including Form W-2 prepared by the Company.  The above benefits 
are subject to the same being available to the Company at reasonable cost and 
any limitations resulting from Employee's physical condition.  

                d.      Expense Reimbursement.  The company shall pay or 
                        ---------------------
reimburse Employee for all reasonable travel and other expenses


                                       2
               

<PAGE>
 
incurred or paid by Employee in connection with the performance of services
under this Agreement upon presentation of expense vouchers and such other
supporting information as the Company may from time to time reasonably request.

        5.      Warranties and Indemnification.  Employee represents to the 
                ------------------------------        
Company that Employee is free to enter into this Agreement and that Employee has
no commitment, arrangement or understanding to or with any third party which
restrains or is in conflict with this Agreement; or which would operate to
prevent Employee from performing the services to the Company which Employee
hereby has agreed to provide. Employee agrees to indemnify and hold the Company
harmless from and against any and all liabilities or claims, including costs,
expenses and reasonable attorney's fees arising out of any acts by Employee
which, the foregoing representation or warranty to the contrary notwithstanding,
shall be in violation of or shall constitute a breach of any such commitment,
arrangement or understanding.

        6.      Termination. 
                -----------
                a.      The Company may terminate Employee's employment 
hereunder upon thirty (30) days' prior written notice to Employee for cause, 
and, except as provided below, the salary and benefits referred to in paragraphs
3 and 4 above shall cease upon the effective date of any such termination for 
cause.  As used herein, with respect to termination by the Company, the term 
"cause" shall mean (i) any material breach hereof by Employee which is not 
cured within thirty (30) days following notice of such breach given by the 
Company, provided that no such prior notice and opportunity to cure need be 
given where such breach, or similar breach, has been the subject of such a 
notice and cure period on more than two prior occasions; or (ii) conviction of 
Employee for commitment of a felony; or (iii) any act of Employee, which in the 
reasonable judgment of a majority of the Board of Directors of the Company,
constitutes dishonest, larceny, fraud, deceit or gross negligence by Employee in
the performance of his duties to the Company, willful misrepresentation to
shareholders, directors or officers of the Company.

                b.      The Company may, by action of a majority of the Board of
Directors, terminate Employee's employment at any time upon thirty (30) days 
prior written notice and without cause; provided, that prior to the effective 
date of termination, the Company shall pay to Employee an amount equal to the 
greater of (i) the total Base Salary otherwise payable through the expiration of
the term of this Agreement as set forth at paragraph 2 above, or (ii) six (6) 
months' Base Salary then payable to Employee.  In addition, the Company shall 
continue to provide Employee the benefits described in Paragraphs 4a and 4c, at 
the same or greater 

                                       3

<PAGE>
 
levels, through the expiration of the term of this Agreement as set forth at 
Paragraph 2 above.

                c.      Employee may terminate his employment hereunder at any 
time upon thirty (30) days' prior written notice to the Company for cause.  The 
amounts identified in Paragraph 6b. shall be paid to Employee as of the 
effective date of termination, together with the continuing benefits described 
therein, as Employee's sole remedy.  As used herein with respect to termination 
by Employee, "cause" shall mean (i) any material breach hereof by the Company 
which is not cured within thirty (30) days following notice of such breach given
by Employee; (ii) repeated and consistent bad faith attempts to bring about 
Employee's resignation through obstruction by the Company of the operations and 
programs of Employee in his capacity hereunder; (iii) the removal of Employee 
from the position of President or Chief Executive Officer, or the appointment of
another person to perform the duties ordinarily associated with such position(s)
without the formal removal of Employee's title(s); or (iv) the transfer of 
Employee or the relocation of the principal offices from which the activities 
of the Company are conducted to an area more than fifty (50) miles outside the 
City of Seattle, Washington.

                d.      If Employee terminates his employment without cause, 
such termination shall be treated as a termination with cause by Company, as 
provided in subparagraph 6(a) above (but without the necessity of any prior 
notice by the Company).

                e.      Any dispute between the parties as to the meaning or 
presence of "cause" for termination shall be resolved by binding arbitration
conducted before a single arbitrator in the Seattle, Washington area under the
Commmercial Arbitration Rules of the American Arbitration Association, provided
that the arbitrator shall be a person of extensive experience in the arbitration
of disputes under private employment agreements applicable to management
personnel in industries similar to the Company's industry.

                f.      This Agreement and Employee's employment and salary 
shall in any event terminate upon the death of Employee or the inability of
Employee to perform the duties and functions of his position for a period of 120
days during any twelve (12) consecutive month period due to sickness or
disability unless, by action of a majority of the Board or Directors, the
Company grants Employee a leave of absence with or without all or a portion of
his salary or bonuses, as may be specified.

                g.      In the event this Agreement is terminated by Employer 
without cause, or by Employee with cause, all stock of Employee in the Company 
shall immediately become vested under a

                                      4 

<PAGE>
 
certain Stock Repurchase Agreement being entered into more or less 
contemporaneously herewith.

                h.      In the event this Agreement is terminated by Employer 
without cause, or by Employee with cause, Employee shall have the right to
purchase all "key-man" and other life insurance policies maintained by the
Company on the life of Employee at a cost of One Dollar ($1.00), plus any
administrative charges required by the insurance company to assign the policy(s)
to Employee. If any of such policies have a cash surrender value, such cash
surrender value existing ninety (90) days prior to the termination shall be
transferred with the policy to Employee.

        7.      Confidentiality.
                ---------------
                a.      Employee acknowledges that the Company's business and
future success depends on the preservation of the trade secrets and other 
confidential information of the Company and its affiliates, suppliers and 
customers (the "Secrets").  The Secrets include existing, to-be-developed 
or acquired products, processes, techniques, methods, computer programs, know-
how, trade secrets, customers, suppliers, developments, patents, equipment, or
business information made, sold, used, developed or practiced by the Company in
it's business or proprietary to the Company or its affiliates, suppliers or
customers. "Secrets" do not include any of the above information or medium
generally known to the industry or which comes to the attention of Employee
through sources other than the Company.  It is anticipated that all employees of
the Company, including Employee, will mark all items containing Secrets with 
prominent confidentially notices in accordance with policies to be adopted by 
the Company.  Employee agrees to protect and to preserve as confidential during 
and after the term of his employment all of the Secrets at any time known to 
Employee or in his possession or control (whether wholly or partially developed 
by Employee or provided to Employee, and whether embodied in a tangible medium 
or merely remembered).

                b.      Employee shall neither use nor intentionally allow any 
other person to use any of the Secrets in any way, except for the benefit of the
Company.  All tangible items embodying or disclosing any portion of the Secrets 
shall be and remain the property of the Company and shall be returned to the 
Company upon the termination of Employee's employment.  At such time, Employee 
shall also assemble all tangible items of work in progress, notes, plans, and 
other materials related in any way to Employee's employment, and will promptly 
deliver such items to the Company.  The failure to mark any item with 
confidentiality notice(s) shall not, ipso facto, cause such item to be excluded 
                                     ---- -----   
from classification as a Secret for purposes of this Section 7.

                                       5

<PAGE>
 
          c.  Employee's covenants in this paragraph shall supplement,
and shall not supplant, any other rights or remedies the Company may have under 
applicable law for the protection of its properties and trade secrets.

     8.   Inventions.
          ----------

          a.  "Invention(s)" shall mean discoveries, designs, programs, 
improvements, developments, new concepts, methods, agents, materials, and ideas,
whether patentable or not, and products, processes and know-how related to the 
use or production thereof.

          b.  Employee agrees that any Invention which Employee has made or may 
make during the term of this Agreement shall be treated as part of the Company 
Secrets and shall be the sole and exclusive property of the Company, whether or 
not (i) patent applications or copyright registrations are filed thereon, (ii) 
the Invention is utilized by the Company, or (iii) the Invention is conceived or
developed by Employee individually or jointly with others. However, Employee has
no obligation to assign to the Company any Invention for which no Company 
Secrets and no equipment, supplies, or facilities of the Company were used and 
which was developed entirely on Employee's own time, unless:

              i)   the Invention relates directly to the business of the 
     Company;

              ii)  the Invention relates to actual or demonstrably anticipated 
     research or development work of the Company, or

              iii) the Invention directly results from any work performed by 
     Employee for the Company.

          c.  Whenever requested by the Company, Employee agrees to assist and 
cooperate with the Company, at the Company's expense, in the obtaining, 
maintaining and enforcing of United States and foreign patents and copyright 
registrations for any Invention which is to be the property of the Company as 
provided above. This assistance and cooperation shall include, but is not 
limited to:

              i)   making application for United States and foreign patents or 
     copyright registrations on any Invention if so requested by the Company;

              ii)  assigning all of Employee's right, title and interest in and 
     to such Invention and any patent

                                       6

<PAGE>
 
     applications or copyright registrations thereon to the Company or its 
     designee; and

                iii) executing all documents and rendering all assistance as may
     be reasonably necessary to protect the rights of the Company or its
     designee and to vest in the Company or its designee all rights to any such
     Invention, patent application, patent, copyright, or copyright
     registration.

          d.  Attached hereto as Exhibit A is a list of all issued patents, 
                                 ---------
pending patent applications, registered copyrights, and other inventions which 
Employee has owned or has developed prior to being retained by the Company. Any 
copyright, patent, pending application, or prospective patent application thus 
listed and not otherwise expressly assigned in writing by Employee to the 
Company will be excluded from the terms of this Agreement.

     9.   Covenant Not to Compete.
          -----------------------
          a. Applicability. This Paragraph 9 shall apply following the 
             -------------
termination of Employee's employment only in the event such termination is (i) 
by Employer for cause as defined in Paragraph 6a above, or (ii) by Employee 
without cause as defined in Paragraph 6c above.

          b. Covenant. For a period beginning on the date of this Agreement and 
             --------
ending two years following the date of termination of Employee's employment, 
Employee hereby agrees that he will not, directly or indirectly, enter into the 
employment of, render services to or acquire any interest whatsoever in (whether
for his own account as an individual proprietor, or as a partner, associate, 
shareholder, officer, director, consultant, trustee or otherwise), any person or
entity engaged in any operations in competition in any area of the world with 
any aspect of the business of the Company as presently conducted and as said 
business may evolve in the ordinary course of business between the date of this 
Agreement and the termination of Employee's employment hereunder (including 
products under active development at such time); provided, however, that nothing
                                                 --------  -------
herein shall prevent the purchase or ownership by Employee of shares of stock in
a nominal amount by way of investment in any publicly-held corporation or 
prevent the employment of or the rendering of services by Employee where he does
not contribute to the development or sale of products which compete with 
products of the Company with whose development or sale the Employee was directly
involved. Without limiting the foregoing, Employee agrees that he will not call 
on or otherwise solicit business from any of the customers or potential 
customers of the Company which, at the time of termination of his employment, 
were listed (or ought to have been listed) in the Company's

                                       7

<PAGE>
 
records, as to any product that competes with any product provided or marketed 
by or actually under development by the Company at the time of Employee's 
termination. Employee agrees that he will, during the term of his employment 
with the Company, promptly and fully disclose to the Company any business 
opportunity coming to Employee's attention, or conceived or developed in whole 
or in part by Employee, which relates to the Company's business or demonstrably 
anticipated business. Employee will not at any time exploit such business 
opportunities for his own gain or that of any person or entity other than the 
Company.

     10.  Remedies. Employee acknowledges that damages for breach of his 
          --------
covenants under paragraphs 7, 8 and 9 above will be difficult to determine and 
inadequate to remedy the harm which may be caused thereby, and therefore agrees 
that the Company may petition or seek to enjoin a putative violation by 
temporary or permanent injunction. Any available injunction relief shall be in 
addition to and not in place of any other remedies available at law or equity. 
Employee believes that the provisions of this Agreement are reasonable and that 
Employee is capable of gainful employment without breaching this Agreement. 
However, should any court or tribunal decline to enforce any provision of 
paragraphs 9 or 10 of this Agreement as written, the parties hereby agree that 
this Agreement shall, to the extent applicable to that circumstance before such 
court, be deemed to be modified to restrict Employee's competition with the 
Company to the maximum extent of time, scope and geography which the court shall
find enforceable, and such provisions shall be so enforced.

     11.  Entire Agreement; Modification. The provisions contained herein 
          ------------------------------
constitute the entire Agreement between the parties with respect to the subject 
matter hereof and any waiver, alteration or modification of any provisions of 
this Agreement, or the replacement of this Agreement, shall not be valid unless 
in writing and signed by all the parties signing hereunder.

     12.  Governing Law. This Agreement shall be governed and construed in 
          -------------
accordance with the laws of the State of Washington.

     13.  Agreement Not Assignable. Employee may not assign any of his rights or
          ------------------------
delegate any of his duties hereunder. Subject to Paragraph 6c., the Company may 
assign this Agreement to any of its Affiliates at any time owned by, owning or 
under common ownership with the Company. In the event of such an assignment by 
the Company, such affiliates shall be deemed substituted for the Company at each
place where "the Company" appears herein; provided, however, the Company shall 
                                          -----------------
not be released from its obligations hereunder. Furthermore, the assignment of 
this Agreement by the Company shall not enlarge the business activities 
considered to be conducted by the Company for purposes of Paragraphs 7, 8 and 9

                                       8

<PAGE>
 
hereof. Subject to the foregoing, this Agreement shall bind the parties and 
their respective heirs, successors, assigns and personal representatives.

     14.  Change in Ownership.  Upon (a) the sale or transfer of all or 
          -------------------
substantially all of the assets of the Company or of more than fifty percent 
(50%) of the outstanding stock of any voting class of the Company's stock to any
single person or entity (in any one or more of a series of related 
transactions), or (b) the merger of the Company with or into any other entity 
(except a wholly-owned subsidiary or a parent owning all of the outstanding 
stock of the Company), then all stock of Employee in the Company shall 
immediately become vested under a certain Stock Repurchase Agreement being 
entered into more or less contemporaneously herewith.

     15.  Attorney's Fees.  In any action to enforce its rights hereunder the 
          ---------------
prevailing party shall be reimbursed by the other for its costs of enforcement, 
including without limitation reasonable attorneys' fees.

     16.  Jurisdiction and Venue.  The parties each irrevocably consents and 
          ----------------------
submits to the personal jurisdiction of the State and Federal courts sitting in 
King county, Washington, and agrees that any action, suit or proceeding in 
connection with this Agreement shall be brought in such courts to the exclusion 
of all other courts, other than actions to enforce judgments or orders entered 
in such courts sitting in King County.

     17.  Notices.  All notices required or permitted hereunder shall be given 
          -------
in writing and delivered in person, transmitted by facsimile, or sent by 
registered or certified mail, postage prepaid, or reliable courier service to 
the parties at the respective addresses set forth on the signature page hereof, 
or such other address as a party may specify by notice for all subsequent 
notices to it hereunder. Notices will be effective upon the earlier of receipt 
or the second business day after mailing.

     18.  No Waiver.  NO waiver or modification of any of the terms or 
          ---------
provisions hereof shall be valid unless in writing signed by the party against 
which the enforcement of such waiver or modification is sought, nor shall any 
waiver or failure to enforce any right hereunder be deemed to be a waiver of the
same or any other right in any other instance.

                                       9

<PAGE>
 
Signed by the parties as of the date first written above.


                            COMBINED THERAPEUTICS, INC.


                            By: /s/  [Signature Appears Here]
                                ----------------------------------
                                Its: Executive Vice President
                                     -----------------------------


                            EMPLOYEE

                            JAMES A. BIANCO, M.D.


             Address:       --------------------------------------
 
                            --------------------------------------

                            --------------------------------------

             Signature:     /s/ James Bianco
                            --------------------------------------

                                      10

<PAGE>
 
                                   EXHIBIT A
                                   ---------

                        Issued Patents, Pending Patent
                   Applications, Registered Copyrights, Etc.
                   -----------------------------------------

                                      11



<PAGE>
 
                                                                    Exhibit 10.6


CELL THERAPEUTICS, INC.



201 Elliott Avenue West
Suite 400                     May 27, 1994
Seattle, Washington 98119
Telephone 206 282 7100
Facsimile 205 284 6206
                              Mr. Louis A. Bianco
                              Executive Vice President,
                              Finance and Administration
                              Cell Therapeutics, Inc.
                              201 Elliott Avenue West
                              Suite 400
                              Seattle, WA 98119

                              Dear Lou:

                              This letter sets forth the agreement between you
                              and Cell Therapeutics, Inc. (the "Company") to
                              extend your February 1, 1992 Employment Agreement
                              on the same terms and conditions for an additional
                              period of three years, expiring January 31, 1998.
                              The Company also agrees to provide you with term
                              life insurance coverage in the amount of $1
                              million in lieu of the coverage otherwise normally
                              provided to officers. The foregoing actions were
                              authorized by the Company's Compensation Committee
                              at its May 11, 1994 meeting. 

                              Please indicate your agreement to these terms by
                              dating and signing the enclosed duplicate of this
                              letter in the space provided below and returning
                              it to me. You should retain the original of this
                              letter for your own records.

                              Sincerely,

                              /s/ J Bianco

                              James A. Bianco
                              President and CEO

                              I agree to the terms of this letter.
                              Date: May 27, 1994
                                   -------- 

                              /s/ Louis A. Blanco
                              -------------------
                              Louis A. Blanco

<PAGE>
 
                             EMPLOYMENT AGREEMENT
                             --------------------


     THIS
 EMPLOYMENT AGREEMENT (the "Agreement") is entered into as of the 1st
day of February, 1992, by and between LOUIS BIANCO ("Employee"), the COMBINED
THERAPEUTICS, INC., a Washington corporation (the "Company"). In consideration
of the mutual covenants and conditions set forth herein, the parties hereby
agree as follows:

     1. Employment. The Company hereby employs Employee to serve as its 
        ----------
Executive Vice-President of Finance and Administration and Employee hereby 
accepts such employment. In such capacity, Employee shall be responsible for 
managing short and long term funding necessary to meet the Company's strategic 
objectives, assisting the Chief Executive Officer to develop and execute the 
Company's business plans, supervising and managing comptroller functions (i.e., 
preparation of financial reports to investors and regulators, and preparation of
internal management reports and analyses), supervising and managing those 
appointed to head the Company's marketing, regulatory, and 
operational/administrative functions, and to perform such other duties during 
the term hereof as the President or Board of Directors of the Company shall, 
from time to time, reasonably direct. Employee agrees to utilize his skills and 
to render services to the best of his ability on a full-time basis during the 
term of this Agreement.

     2. Term. Unless earlier terminated pursuant to the provisions of paragraph 
        ----
6 below, Employee's employment hereunder shall be for a period of three (3) 
years commencing on the date hereof.

     3.   Compensation.
          ------------

          a.  Base Salary. For all services rendered by Employee under this 
              -----------
Agreement, Employee shall receive a salary at an annual rate of $154,500, as 
increased under Paragraphs 3b, 3c, and 4c ("Base Salary"), or such higher annual
rate as the Board of Directors of the Company may from time to time establish in
its sole discretion.

          b.  Annual Increases. The Base Salary shall be increased at the end of
              ----------------
each year of service by an amount equal to (i) a percentage equal to the
increase, if any, in the United States Department of Labor Consumer Price Index
for Seattle, Everett urban areas, all items, over the previous twelve months,

<PAGE>
 
plus (ii) 10%, or such greater amount as the Board of Directors shall determine.
If the index specified in this paragraph is discontinued or not available, a 
substitute index shall be selected by arbitration in the manner contemplated by 
Paragraph 6e unless the parties mutually agree on a substitute index.

          c.  Annual Bonuses.  Employee shall receive such annual bonuses as
              --------------
may be declared from time to time by the Board of Directors in its sole
discretion.

          d.  Signing Bonus.  Employee shall be paid a signing bonus in an
              -------------
amount not to exceed $75,000, which shall be deemed earned upon execution of 
this Agreement by the Company and Employee. The amount of the bonus shall equal 
$75,000, less any bonus earned and received by Employee from his employer prior 
to the Company for calendar year 1991. Upon the final disposition of Employee's 
entitlement, if any, to such bonus from his prior employer, the Company shall 
pay Employee the amount due under this Paragraph 3d within five (5) days.

          e.  Relocation Allowance.  The Company shall reimburse Employee for 
              --------------------
all expenses incurred in relocating to the Seattle, Washington area, including 
moving, transportation, and temporary living accommodation expenses, upon 
submission of reasonable documentation evidencing such expenses. The amount to 
be reimbursed Employee under this Paragraph 3e shall not exceed $12,000.

          f.  Stock Option Plans.  The Company intends to adopt stock option 
              ------------------
and/or stock purchase plans for the benefit of certain employees of the Company.
Employee shall be entitled to participate in such plans, consistent with the 
terms of such plans and applicable law.

      4.  Benefits.
          --------

          a.  Medical/Health Insurance.  The Company shall provide Employee with
              ------------------------
Company paid medical and dental insurance for Employee, his spouse and 
dependents in accordance with such policies as shall be maintained by the 
Company, which shall be comparable to that enjoyed by Employee immediately prior
to accepting employment hereunder.

          b.  Vacation/Sick Leave.  Employee shall be entitled to vacation and 
              -------------------
sick leave in accordance with Company policy, provided, Employee shall be 
                                              --------
entitled to (i) a minimum of three (3) weeks vacation time during the first two 
(2) years of service and a minimum of four (4) weeks thereafter, and (ii) a 
minimum of three (3) days of paid sick leave for each ten (10) weeks of 
consecutive employment. Vacation and sick leave not used 

                                       2

<PAGE>
 
shall accumulate and shall be paid to Employee upon termination of employment 
for any reason.

          c.  Life/Disability Insurance.  The Company shall provide, at Company 
              -------------------------
expense, term life insurance for the benefit of Employee in accordance with a 
plan for executive officers of the Company. The Company's benefit plan for 
executive officers shall provide, at Employee's expense, disability insurance
for the benefit of Employee and his beneficiaries through a company reasonably
acceptable to Employee. Employee's Base Salary shall be increased by the amount
of the annual premium for such coverage. The Company shall cause its records to
reflect that the premiums for the disability policy have been paid by the
Employee, including Form W-2 prepared by the Company. The above benefits are
subject to the same being available to the Company at reasonable cost and any
limitations resulting from Employee's physical condition.

          d.  Expense Reimbursement.  The Company shall pay or reimburse 
              ---------------------
Employee for all reasonable travel and other expenses incurred or paid by 
Employee in connection with the performance of services under this Agreement 
upon presentation of expense vouchers and such other supporting information as 
the Company may from time to time reasonably request.

     5.   Warranties and Indemnification.  Employee represents to the Company 
          ------------------------------
that Employee is free to enter into this Agreement and that Employee has no 
commitment, arrangement or understanding to or with any third party which 
restrains or is in conflict with this Agreement; or which would operate to 
prevent Employee from performing the services to the Company which Employee 
hereby has agreed to provide. Employee agrees to indemnify and hold the Company 
harmless from and against any and all liabilities or claims, including costs, 
expenses and reasonable attorney's fees arising out of any acts by Employee 
which, the foregoing representation or warranty to the contrary notwithstanding,
shall be in violation of or shall constitute a breach of any such commitment, 
arrangement or understanding.

     6.   Termination.
          -----------

          a.  The Company may terminate Employee's employment hereunder upon 
thirty (30) days' prior written notice to Employee for cause, and, except as 
provided below, the salary and benefits referred to in paragraphs 3 and 4 above 
shall cease upon the effective date of any such termination for cause. As used 
herein, with respect to termination by the Company, the term "cause" shall mean 
(i) any material breach hereof by Employee which is not cured within thirty (30)
days following notice of such breach given by the Company, provided that no such
prior notice and opportunity to cure need be given where such breach, or similar
breach, has been 

                                       3

<PAGE>
 
the subject of such a notice and cure period on more than two prior occasions; 
or (ii) conviction of Employee for commitment of a felony; or (iii) any act of 
Employee, which in the reasonable judgment of a majority of the Board of 
Directors of the Company, constitutes dishonesty, larceny, fraud, deceit or 
gross negligence by Employee in the performance of his duties to the Company, 
willful misrepresentation to shareholders, directors or officers of the Company.

          b.  The Company may, by action of a majority of the Board of 
Directors, terminate Employee's employment at any time upon thirty (30) days'
prior written notice and without cause; provided, that prior to the effective
date of termination, the Company shall pay to Employee an amount equal to the
greater of (i) the total Base Salary otherwise payable through the expiration of
the term of this Agreement as set forth at paragraph 2 above, or (ii) six (6)
months' Base Salary then payable to Employee. In addition, the Company shall
continue to provide Employee the benefits described in Paragraphs 4a and 4c, at
the same or greater levels, through the expiration of the term of this Agreement
as set forth at Paragraph 2 above.

          c.  Employee may terminate his employment hereunder at any time upon 
thirty (30) days' prior written notice to the Company for cause. The amounts
identified in Paragraph 6b. shall be paid with the continuing benefits described
therein, as Employee's sole remedy. As used herein with respect to termination
by Employee, "cause" shall mean (i) any material breach hereof by the Company
which is not cured within thirty (30) days following notice of such breach given
by Employee; (ii) repeated and consistent bad faith attempts to bring about
Employee's resignation through obstruction by the Company of the operations and
programs of Employee in his capacity hereunder; (iii) the removal of Employee
from the position of Executive Vice-President of Finance and Administration, or
the appointment of another person to perform the duties ordinarily associated
with such position(s) without the formal removal of Employee's title(s); or (iv)
the transfer of Employee or the relocation of the principal offices from which
the activities of the Company are conducted to an area more than fifty (50)
miles outside the City of Seattle, Washington.
          d.  If Employee terminates his employment without cause, such 
termination shall be treated as a termination with cause by Company, as provided
in subparagraph 6(a) above (but without the necessity of any prior notice by the
Company).

          e.  Any dispute between the parties as to the meaning or presence of 
"cause" for termination shall be resolved by binding arbitration conducted 
before a single arbitrator in the 

                                       4


<PAGE>
 
Seattle, Washington area under the Commercial Arbitration Rules of the American 
Arbitration Association, provided that the arbitrator shall be a person of 
extensive experience in the arbitration of disputes under private employment 
agreements applicable to management personnel in industries similar to the 
Company's industry.

          f.  This Agreement and Employee's employment and salary shall in any 
event terminate upon the death of Employee or the inability of Employee to 
perform the duties and functions of his position for a period of 120 days during
any twelve (12) consecutive month period due to sickness or disability unless, 
by action of a majority of the Board of Directors, the Company grants Employee a
leave of absence with or without all or a portion of his salary or bonuses, as 
may be specified.

          g.  In the event this Agreement is terminated by Employer without 
cause, or by Employee with cause, all stock of Employee in the Company shall 
immediately become vested under a certain Stock Repurchase and Contribution 
Agreement being entered into more or less contemporaneously herewith.

     7.   Confidentiality.
          ---------------

          a.  Employee acknowledges that the Company's business and future 
success depends on the preservation of the trade secrets and other 
confidential information of the Company and its affiliates, suppliers and 
customers (the "Secrets"). The Secrets include existing, to-be-developed or 
acquired products, processes, techniques, methods, computer programs, know-how, 
trade secrets, customers, suppliers, developments, patents, equipment, or 
business information made, sold, used, developed or practiced by the Company in 
it's business or proprietary to the Company or its affiliates, suppliers or 
customers. "Secrets" do not include any of the above information or medium 
generally known to the industry or which comes to the attention of Employee 
through sources other than the Company. It is anticipated that all employees of 
the Company, including Employee, will mark all items containing Secrets with 
prominent confidentially notices in accordance with policies to be adopted by 
the Company. Employee agrees to protect and to preserve as confidential during 
and after the term of his employment all of the Secrets at any time known to 
Employee or in his possession or control (whether wholly or partially developed 
by Employee or provided to Employee, and whether embodied in a tangible medium 
or merely remembered).

          b.  Employee shall neither use nor intentionally allow any other 
person to use any of the Secrets in any way, except for the benefit of the 
Company. All tangible items embodying or disclosing any portion of the Secrets 
shall be and remain the

                                       5

<PAGE>
 
property of the Company and shall be returned to the Company upon the
termination of Employee's employment. At such time, Employee shall also assemble
all tangible items of work in progress, notes, plans, and other materials
related in any way to Employee's employment, and will promptly deliver such
items to the Company. The failure to mark any item with confidentiality
notice(s) shall not, ipso facto, cause such item to be excluded from
                     ---- -----
classification as a Secret for purposes of this Section 7.


                c.      Employee's covenants in this paragraph shall 
supplement, and shall not supplant, any other rights or remedies the Company may
have under applicable law for the protection of its properties and trade 
secrets.

        8.      Remedies.  Employee acknowledges that damages for breach of 
                --------
his covenants under paragraph 7 will be difficult to determine and inadequate to
remedy the harm which may be caused thereby, and therefore agrees that the 
Company may petition or seek to enjoin a putative violation by temporary or 
permanent injunction.  Any available injunctive relief shall be in addition to 
and not in place of any other remedies available at law or equity.

        9.      Entire Agreement; Modification.  The provisions contained herein
                ------------------------------
constitute the entire Agreement between the parties with respect to the subject
matter hereof and any waiver, alteration or modification of any provisions of
this Agreement, or the replacement of this Agreement, shall not be valid unless
in writing and signed by all the parties signing hereunder.

       10.      Governing Law.  This Agreement shall be governed and construed 
                -------------
in accordance with the laws of the State of Washington.

       11.      Agreement Not Assignable.  Employee may not assign any of his 
                ------------------------        
rights or delegate any of his duties hereunder. Subject to Paragraph 6c., the
Company may assign this Agreement to any of its Affiliates at any time owned by,
owning or under common ownership with the Company. In the event of such an
assignment by the Company, such affiliates shall be deemed substituted for the
Company at each place where "the Company" appears herein; provided, however, the
                                                          --------  -------
Company shall not be released from its obligations hereunder. Subject to the
foregoing, this Agreement shall bind the parties and their respective heirs,
successors, assigns and personal representatives.

        12.     Change in Ownership.  Upon (a) the sale or transfer of all or 
                -------------------
substantially all of the assets of the Company or of more than fifty percent 
(50%) of the outstanding stock of any voting class of the Company's stock to any
single person or entity (in any one or more of a series of related 
transactions), or (b) the merger
 

                                    6     
        


<PAGE>
 
of the Company with or into any other entity (except a wholly-owned subsidiary 
or a parent owning all of the outstanding stock of the Company), then all stock 
of Employee in the Company shall immediately become vested under a certain Stock
Repurchase and Contribution Agreement being entered into more or less 
contemporaneously herewith.

        13.  Attorney's Fees.  In any action to enforce its rights hereunder the
             ---------------
prevailing party shall be reimbursed by the other for its costs of enforcement, 
including without limitation reasonable attorneys' fees.

        14.  Jurisdiction and Venue.  The parties each irrevocably consents and 
             ---------------------- 
submits to the personal jurisdiction of the State and Federal courts sitting 
in King county, Washington, and agrees that any action, suit or proceeding in 
connection with this Agreement shall be brought in such courts to the exclusion 
of all other courts, other than actions to enforce judgments or orders entered 
in such courts sitting in King County.

        15.  Notices.  All notices required or permitted hereunder shall be 
             -------
given in writing and delivered in person, transmitted by facsimile, or sent by 
registered or certified mail, postage prepaid, or reliable courier service to 
the parties at the respective addresses set forth on the signature page hereof,
or such other address as a party may specify by notice for all subsequent 
notices to it hereunder.  Notices will be effective upon the earlier of receipt 
or the second business day after mailing.

        16.  No Waiver.  No waiver or modification of any of the terms or 
             ---------  
provisions hereof shall be valid unless in writing signed by the party against 
which the enforcement of such waiver or modification is sought, nor shall any 
waiver or failure to enforce any right hereunder be deemed to be a waiver of the
same or any other right in any other instance.

                                       7

<PAGE>
 
                    Signed by the parties as of the date first written above.


                                    COMBINED THERAPEUTICS, INC.



                                    By:  /s/ J. Bianco
                                         ----------------------------
                                         Its:  Pres. & CEO
                                              -----------------------

                                         EMPLOYEE

                                         LOUIS BIANCO


                         Address:   
                                    ---------------------------------

                                    ---------------------------------

                                    ---------------------------------

                       Signature:   /s/ Louis Bianco
                                    ---------------------------------

                                       8



<PAGE>
 
                                                                   Exhibit 10.20

[LOGO]                                          
BIOCHEM PHARMA                          Portions of this Exhibit have been
        BIOCHEM THERAPEUTIC             omitted pursuant to a request for
                                        confidential treatment. The omitted
                                        portions are marked ***** and have been
                                        filed separately with the Commission


        ---------------------------------------------------------------

                            COLLABORATION AGREEMENT

        ---------------------------------------------------------------


                                By and between


                           BIOCHEM THERAPEUTIC INC.

                                      and

                            CELL THERAPEUTICS, INC.


                           Made as OF MARCH 7, 1995


BIOCHEM THERAPEUTIC INC.

A SUBSIDIARY OR BIOCHEM PHARMA INC
275 ARMAND-FRAPPIER BLVD
LAVAL. QUEBEC
CANADA H7V 4A7
TEL: (514) 687-4910
FAX: (514) 978-7767

(The information below marked by ***** has been
omitted by a request for confidential treatment.
The omitted portion has been separately filed 
with the Commission)

<PAGE>
 

                            COLLABORATION AGREEMENT
                            -----------------------

THIS COLLABORATION AGREEMENT is dated and is effective as of this Seventh (7th)
day of March 1995;                      
 
BY AND BETWEEN:         BIOCHEM THERAPEUTIC INC., a corporation incorporated
                        under the laws of Quebec, with its principal place of
                        business located at 275 ARMAND-Frappier Boulevard,
                        Laval, Quebec, Canada H71 4A7;

                               (hereinafter referred to as "BIOCHEM"),

AND:                    CELL THERAPEUTICS, INC., a corporation organized and
                        existing under the laws of the State of Washington,
                        having its principal place of business at 201 Elliott
                        Avenue West, Seattle, Washington,
 United States of
                        America, 98119;

                               (hereinafter referred to as "CTI")
RECITALS:
- ---------

A.      CTI and BIOCHEM desire to collaborate in obtaining regulatory approvals
        for and in commercializing Licensed Products and Combination Products
        (as hereinafter defined) in Canada;

B.      CTI and BIOCHEM desire that CTI grant BIOCHEM an exclusive license under
        the Licensed Patents and the Technology (as hereinafter defined) to
        enable BIOCHEM to collaborate with CTI in obtaining regulatory approvals
        for, and in commercializing, Licensed Products and Combination Products
        in the Territory;

NOW, THEREFORE, in consideration of the various premises and undertakings set
forth herein, the Parties agree as follows:

                                   ARTICLE I
                                  DEFINITIONS
                                  -----------

Unless otherwise specifically provided herein, the following terms shall have
the following meanings:

1.1   "Affiliate" of a Party shall mean an entity: (i) in which at least fifty
      -----------
percent (50%) of the voting shares or other means of control of such entity are
owned or controlled, directly or indirectly, by such Party, or (ii) which owns
or controls, directly or indirectly, at least fifty percent (50%) of the voting
shares of such Party, or in which at least fifty percent (50%) of such
ownership or control is owned or controlled, directly or indirectly, by an
entity owning or controlling at least fifty percent (50%) of the voting shares
of such Party.

<PAGE>
 
                                                                              /2

1.2   "Bulk Materials" shall mean Licensed Products or Combination Products
      ----------------
ready for market except for final fill and finish.


1.3   "Calendar Quarter" shall mean any period of three (3) months ending on the
      ------------------
last day of March, June, September or December, as the case may be.


1.4   "Combination Product" shall mean a product consisting of a Licensed
      ---------------------
Product and at least one other ingredient which is biologically active.


1.5   "CT-15O1R" shall mean the toxicity modifier Lisofylline: 1-(5-R-
      ----------
hydroxyhexyl) methylxanthine and its homologs and analogs as further described
in Exhibit "E" hereto.

1.6   "CT-2584" shall mean the anticancer agent 1-(11-Dodecylamino-10-
      ---------
hydroxyundecyl)-3, 7-dimethylxanthine and its homologs and analogs as further
described in Exhibit "E" hereto.

1.7   "Due Diligence" shall mean all reasonable efforts consistent with prudent
      ---------------
business judgment.

1.8   "Exhibit" shall mean the exhibits annexed to and incorporated in this
      ---------
Agreement by reference and deemed to be a part hereof:

     Exhibit "A"  -  List of Patents and Patent Applications;
     Exhibit "B"  -  Nominees of the Management Committee;
     Exhibit "C"  -  Subscription Agreement and Confidential Private Placement
                     Memorandum
     Exhibit "D"  -  Supply Agreement
     Exhibit "E"  -  Product Description

1.9   "FDA" means the United States Food and Drug Administration and its
      -----
successor.

1.10  "Field" shall mean the treatment, diagnosis and prevention of disease in
      -------
humans.

1.11  "Governmental Body" shall mean (i) any domestic or foreign national,
      -------------------
federal, provincial, state, municipal or other government or body, any
international or multilateral body, any subdivision, ministry, department,
secretariat, bureau, agency, commission, board, instrumentality or authority of
any of the foregoing governments or bodies, (iv) any quasi-governmental or
private body exercising any regulatory, expropriation or taxing authority under
or for the account of any of the foregoing governments or bodies, or (v) any
domestic, foreign, international, multilateral, or multinational judicial, 
quasi-judicial, arbitration or administrative court, grand jury, tribunal,
commission, board or panel.

1.12  "HPB" shall mean the Health Protection Branch of Health Canada or its 
      -----
successor.

<PAGE>
 
                                                                              /3

1.13  "Laws" shall mean:
      ------

      (a) all constitutions, treaties, laws, statutes, codes, ordinances,
          orders, decrees, rules, regulations, and municipal by-laws, whether
          domestic, foreign or international;

      (b) all judgments, orders, writs, injunctions, decisions, rulings,
          decrees, and awards of any Governmental Body;

      (c) all policies, practices and guidelines of any Governmental Body; and

      (d) all provisions of the foregoing;

in each case binding on or affecting the Party or Person referred to in the
context in which such word is used; and "Law" shall mean any one of them; for
greater certainty the words "Laws" and "Law" shall include environmental Laws.

1.14  "Licensed Patents" shall mean any and all patents and patent applications,
      ------------------
whether registered or pending, covering, based on, relating to or derived from
CT-1501R and/or CT-2584, now or during the Term owned by or licensed to CTI or
assigned by CTI to any of its licensees, including all divisionals, extensions,
reissues, substitutions, renewals, continuations and continuations-in-part.
"Licensed Patents" shall include, without limitation, those patents and patent
applications listed on Exhibit "A" which is attached hereto and incorporated
herein by this reference.

1.15  "Licensed Products" shall mean all drugs or compounds and any and all
      -------------------
formulations, mixtures or compositions thereof consisting of or containing 
CT-1501R and/or CT-2584 and developed by CTI or its licensees.

1.16  "Management Committee" shall mean that entity organized and acting
      ----------------------
pursuant to Article III of this Agreement.

1.17  "NDA" shall mean New Drug Application.
      -----

1.18  "NDS" shall mean New Drug Submission.
      -----

1.19  "Net Sales" shall mean the gross invoiced sales price charged for all
      -----------
Licensed Products and Combination Products sold by BIOCHEM or its sublicensees
after deduction of the following items, provided and to the extent that such
items were actually incurred and do not exceed customary amounts in the market
in which such sale occurred:

      (i)   trade, quantity and cash discounts or rebates;

<PAGE>
 
                                                                              /4

      (ii)  credits or allowances for rejection or return of previously sold
            goods;

      (iii) any tax or charge (other than an income tax) levied on the sale,
            transportation or delivery of a product and borne by the seller
            thereof; and

      (iv)  any charge for freight or insurance.


1.20  "Party" shall mean CTI or BIOCHEM and, when used in the plural, shall mean
      -------
CTI and BIOCHEM.

1.21  "Person" shall mean an individual, corporation, company, cooperative,
      --------
partnership, organization or any similar entity.

1.22  "Technology" shall mean all information, discoveries, developments,
      ------------
designs, inventions, methods, assay methodologies, processes, techniques,
materials (whether biological, chemical or otherwise), formulae, biological,
toxicological, preclinical and clinical data, technology, know-how and trade
secrets, whether patentable or non-patentable, now or during the Term, which are
necessary or useful for obtaining HPB approval for and/or commercializing
Licensed Product(s) or Combination Product(s) in the Territory and any and all
documents reflecting any of the foregoing.

1.23  "Term" shall have the meaning attributed to it in Article IX.
      ------

1.24  "Territory" shall mean Canada and its territories and possessions.
      -----------


                                  ARTICLE II
                                  THE LICENSE
                                  -----------

2.1   License to BIOCHEM.
      -------------------

      (a) CTI hereby grants to BIOCHEM, and BIOCHEM hereby accepts, an exclusive
          license under the Licensed Patents and the Technology to seek
          regulatory approval from the HPB for and to use, sell and have sold
          Licensed Products and Combination Products within the Field, in the
          Territory.

      (b) BIOCHEM's license rights shall include the right to grant sublicenses
          (i) to BIOCHEM Affiliates on prior notice to CTI and (ii) to other
          third parties with CTI's prior consent, which consent shall not be
          unreasonably withheld. In the event of any such sublicense, BIOCHEM
          guarantees to CTI the performance by its sublicensees of its
          obligations hereunder.

<PAGE>
 
                                                                              /5

      (c) Without limiting Section 2.2(a), CTI warrants that CTI shall provide
          BIOCHEM with copies of and the right to reference all preclinical and
          clinical data generated by CTI and/or its licensees with respect to
          Licensed Products or Combination Products as of the Effective Date or
          at any time during the Term. BIOCHEM shall have the right to use such
          data for the purposes contemplated by this Agreement.

      (d) CTI shall, concurrently with any submissions made by CTI or its
          licensees with drug regulatory authorities in the United States and
          Europe, provide BIOCHEM with a copy of the files submitted by CTI or
          its licensees as well as of additional information supplied to such
          regulatory authorities until the relevant Licensed Product or
          Combination Product is approved for sale in the relevant
          jurisdictions.

      (e) BIOCHEM shall promptly provide to CTI copies of and the right to
          reference all preclinical and clinical data generated by BIOCHEM or
          its sublicensees with respect to Licensed Products and Combination
          Products at any time during the Term. In addition, BIOCHEM shall,
          concurrently with filing an NDS for a Licensed Product or Combination
          Product, provide CTI with a copy of the files submitted by BIOCHEM to
          the HPB until the relevant Licensed Product or Combination Product is
          approved for sale in the Territory. CTI shall have the right to
          provide all such information (including the right to reference and use
          such information) to its licensee outside of the Territory, provided
          that such licensee shall have agreed to keep the contents thereof
          confidential on terms substantially similar to those provided in
          Article VII, below.

      (f) (i)  BIOCHEM is under no obligation to conduct research and except as
               hereinafter provided, development activities in respect of
               Licensed Products or Combination Products. BIOCHEM shall however
               have the right, at its option, to have specific clinical trials
               within CTI's overall clinical development program effected at
               BIOCHEM's expense at sites in the Territory and CTI shall provide
               BIOCHEM with its reasonable assistance in this regard. BIOCHEM
               shall be entitled to piggy-back on the data provided by CTI or
               its licensees to drug regulatory authorities in the U.S. and
               Europe, including without limitation, the data contained in an
               NDA for any Licensed Product or Combination Product filed with
               the FDA. BIOCHEM shall use its Due Diligence to submit the data
               provided by CTI or its licensees to the HPB. In the event that
               the data submitted to the FDA by CTI or its licensees is
               sufficient to obtain FDA approval for the sale of a Licensed
               Product or Combination Product in the U.S., but the HPB
               nonetheless requires additional information, BIOCHEM shall use
               its Due Diligence to provide the HPB with such information and
               CTI shall provide BIOCHEM with its reasonable assistance in this
               regard.

<PAGE>
 
                                                                              /6

          (ii) In the event that CTI and its licensees elect not to pursue FDA
               approval for the sale of a Licensed Product or Combination
               Product, they shall so advise BIOCHEM in writing, and BIOCHEM
               shall within ninety (90) days of receipt of CTI's notice, advise
               CTI whether BIOCHEM will use its Due Diligence to pursue HPB
               approval for the sale of such Licensed Product or Combination
               Product in the Territory or terminate its license with respect to
               such Licensed Product or Combination Product, without further
               liability in respect thereof.


2.2   Adverse Drug Events Reporting.
      ------------------------------

      (a) Adverse Drug Reactions. Each Party shall promptly advise the other
          ----------------------
          Party and provide the other Party with a copy by telecopier or
          overnight delivery service addressed to the attention of its Vice
          President, Clinical and Medical Affairs, of any reports of unexpected
          side effect, adverse reaction or injury ("ADE reports") which has been
          brought to that Party's attention at any place and which is alleged to
          have been caused by a Licensed Product or Combination Product. The
          term "ADE reports" shall also include publications in journals or
          other media. Each of BIOCHEM and CTI shall monitor all such literature
          for information on factors adversely or positively affecting the
          Product and shall promptly advise the other Party. Serious ADE reports
          and unexpected ADE reports (according to CIOMS criteria) shall be
          forwarded without delay to the other Party as soon as such reports
          come to either Party's attention. Any other ADE reports shall be
          reported by each Party to the other on a quarterly basis. The
          informing Party may, and is invited to, give in writing its
          professional evaluation of such reports, in particular with regard to
          suspected causality either together with such reports or as soon as
          possible at a later date. CTI shall report such side effects and
          adverse reaction or injury to the appropriate regulatory authorities
          and others outside the Territory as appropriate or necessary within
          the time limits required by applicable Laws and BIOCHEM shall report
          same to the HPB.

      (b) Regulatory and other Inquiries. Upon being contacted by the HPB or any
          ------------------------------
          other drug regulatory agency in connection with this Agreement or a
          Licensed Product or Combination Product, the Parties shall immediately
          notify each other. BIOCHEM shall respond to all Canadian inquiries and
          CTI shall provide BIOCHEM with reasonable assistance in this regard.
          CTI shall respond to all other inquiries regarding the benefits, side
          effects and other characteristics of Licensed Products or Combination
          Products, which responses will be provided by CTI on a timely basis, a
          copy of which responses shall be provided to BIOCHEM by CTI
          concurrently with their sending.

<PAGE>
 
                                                                              /7

      (c) Product Recall. In the event that CTI or BIOCHEM determines that an
          --------------
          event, incident or circumstance has occurred which may result in the
          need for a recall or other removal of any Licensed Product or
          Combination Product; or any lot or lots thereof, from the market, it
          shall advise and consult with the other Party with respect thereto as
          to the appropriate measures to be taken.

2.3   Should CTI or its licensees file a Drug Master File with the HPB, CTI
shall or shall cause" its licensees, to provide the HPB with a letter
authorizing cross-reference thereto by BIOCHEM in respect of Licensed Products
or Combination Products.

2.4   Periodic Report. CTI shall provide BIOCHEM with periodic reports on its
      ---------------
and its licensees' progress in seeking regulatory approvals for Licensed
Products and Combination Products and of plans for launching Licensed Products
and/or Combination Products in the U.S. and Europe.

2.5   Commercialization by BIOCHEM. Following HPB approval for the sale of a
      ----------------------------
Licensed Product or Combination Product in the Territory, BIOCHEM shall use Due
Diligence in the commercialization of Licensed Products within the Field, in the
Territory.

                                  ARTICLE III
                             MANAGEMENT COMMITTEE
                             --------------------

3.1   Creation of the Management Committee. The Parties hereby agree to the
      ------------------------------------
creation of a Management Committee made up of two (2) representatives of each
Party to facilitate the collaboration contemplated herein. The initial nominees
are shown on Exhibit "B" attached hereto. Each Party may change its
representatives on written notice to the other Party.

3.2   Regular Meetings. During the Term, the Management Committee shall meet at
      ----------------
least once each six months. Meetings may be called by either Party on thirty
(30) days' notice to the other and, unless otherwise agreed, shall alternate
between the offices of the Parties. A designated representative of the Party
hosting the meeting shall chair that meeting and a designated representative of
the other Party shall act as secretary of the meeting.

3.3   Responsibilities of the Management Committee. The Management Committee
      --------------------------------------------
shall be the primary vehicle for interaction between the Parties with respect to
the collaboration contemplated herein. Without limiting the foregoing, the
Management Committee shall be responsible for:

      (a) reviewing and coordinating the NDS to the HPB for approval for the
          sale of Licensed Products and Combination Products in the Territory;

<PAGE>
 
                                                                              /8

      (b) reviewing and approving publications proposed by either Party with
          respect to the Licensed Products and Combination Products in the
          Territory;

      (c)  monitoring the progress of development (including preclinical and
           clinical trials) outside the Territory CTI and CTI's licensees of
           Licensed Products and Combination Products within the Field; and

Each Party shall disclose to the other proposed agenda items at least fifteen
(15) days in advance of each meeting of the Management Committee.


                                  ARTICLE IV
                                PAYMENTS TO CTI
                                ---------------

4.1   Stock Purchase. Concurrently with the execution of this Agreement, BIOCHEM
      --------------
shall subscribe for 7,462.687 preferred shares of CTI stock (the "CTI Stock") at
a purchase price of $335 per share for a total purchase of $2,500,000 in
accordance with the terms of the Subscription Agreement and Confidential Private
Placement Memorandum attached hereto as Exhibit "C", as supplemented or modified
by CTI from time to time, as applicable to all investors pursuant thereto. The
CTI Stock is convertible into Common Shares on the basis of one preferred share
for one hundred common shares in the capital of CTI, subject to those
adjustments set forth in the Articles of Amendment of CTI annexed hereto in
Exhibit C.

4.2   License Fee and Benchmark Payments. In addition to other payments to CTI
      ----------------------------------
provided herein, BIOCHEM shall make non-refundable payments to CTI in the
amounts and at the times set forth below:

      (The information below marked by ***** has been omitted by a request for
      confidential treatment. The omitted portion has been separately filed with
      the Commission)

      (a) ****** within thirty (30) days following the commencement of Phase II
          clinical trials by CTI or its licensees for each Licensed Product
          or Combination Product in the U.S.;
 
      (b) ****** within thirty (30) days following the commencement of Phase III
          clinical trials by CTI or its licensees for each Licensed Product or
          Combination Product in the U.S.;

      (c) ****** within thirty (30) days of the filing of an NDS in the
          Territory by BIOCHEM for each Licensed Product or Combination Product;
          and

      (d) ****** within thirty (30) days of the first commercial sale at each
          Licensed Product or Combination Product in the Territory.

<PAGE>
 
                                                                              /9

As soon as CTI intends to, or as soon as CTI receives a notice from a CTI
licensee that such licensee intends to, commence Phase II clinical trials or
Phase III clinical trials for any Licensed Product or Combination Product in the
U.S., CTI shall provide BIOCHEM with notice thereof.

4.3   Royalties. BIOCHEM shall pay to CTI royalties on Net Sales of Licensed
      ---------
Products and Combination Products in the territory as follows:

      (a) For the duration of the Term, within ninety (90) days following the
          end of each Calendar Quarter, BIOCHEM shall pay CTI the following
          royalties: 

          (The information below marked by ***** has been omitted by a request
          for confidential treatment. The omitted portion has been separately
          filed with the Commission)

          (i)   a royalty equal to ****** of Net Sales of Licensed Products or
                Combination Products covered by claims of validly issued
                Canadian patents during such Calendar Quarter; and

          (ii)  a royalty equal to ****** of Net Sales of Licensed Products or
                Combination Products which are not covered by claims of validly
                issued Canadian patents.

          Each such payment shall be accompanied by a statement stating the
          types of products sold, the quantity of each type sold, and the Net
          Sales of each type sold expressed in local currency and showing the
          conversion rate used, with respect to the Calendar Quarter to which
          the royalty payment relates.

      (b) As to sales of Licensed Products and Combination Products by BIOCHEM
          to its non-Affiliate distributors and sublicensees, the royalty due
          hereunder shall be payable only once, calculated on the basis of the
          sale by BIOCHEM. As to such sales to Affiliates, the royalty due
          hereunder shall be calculated on the basis of the price paid in the
          first arm's length sale to an entity which is not a BIOCHEM Affiliate.

      (c) The royalties shall only be payable by BIOCHEM on Net Sales of each
          Licensed Product and Combination Product for the duration of the Term
          for such Licensed Product or Combination Product or until the license
          for such Licensed Product or Combination Product is terminated in
          accordance with this Agreement.

          (The information below marked by ***** has been omitted by a request
          for confidential treatment. The omitted portion has been separately
          filed with the Commission)

      (d) BIOCHEM shall have the right to offset against ****** of the payments
          otherwise due to CTI pursuant to this Section 4****** of any royalties
          due to third parties under third party licenses required by BIOCHEM to
          enable BIOCHEM to use and sell Licensed Products and Combination
          Products, with third party royalties related to a particular Licensed
          Product or Combination Product being offset only against royalties due
          with respect to that Licensed Product or Combination Product.

<PAGE>
 
                                                                             /10

      (e) In determining Net Sales of Combination Products, Net Sales shall
          first be calculated in accordance with the definition of Net Sales and
          then multiplied by the percentage value of C1501R or CT-2584 contained
          in the Combination Product, such percentage value being the quotient
          obtained by dividing the current market value of CT-1501R or CT-2584
          by the sum of the separate current market values of CT-1501R or 
          CT-2584 and other biologically active ingredients in the Combination
          Product. The current market value of each biologically active
          ingredient shall be for a quantity comparable to that contained in the
          Combination Product and of the same class, purity and potency.

          In the event that a current market value for the non-Licensed Product
          biologically active ingredient in the Combination Product is not
          available and the Parties fail to agree on an appropriate current
          market value, a current market value binding on the parties shall be
          determined by the public accounting firm selected by BIOCHEM with
          CTI's approval which shall be deemed given in the event BIOCHEM
          selects a "big six" public accounting firm. Such public accounting
          firm shall, when determining the current market value for such
          biologically active ingredient, allocate the same proportions of
          costs, overhead and profits as are then allocated to Licensed
          Products.

4.4   Mode of Payment. All payments to CTI hereunder shall be made by deposit of
      ---------------
United States Dollars in the requisite amount to such bank account as CTI may
from time to time designate by written notice to BIOCHEM. Payments shall be free
and clear of any fees and charges (other than applicable taxes which BIOCHEM is
required to pay or withhold with respect to payments to be made to CTI). As to
royalty payments, the amount due shall first be calculated in Canadian Dollars
and then converted into U.S. Dollars at the daily average rate at which Bank of
America NTS&A sells U.S. dollars for such Calendar Quarter as published by Bank
of America NTS&A.

4.5   Records Retention. For three years after each sale of each Licensed
      -----------------
Product or Combination Product, BIOCHEM shall keep (and shall assure that its
sublicensees shall keep) records of such sales in sufficient detail to confirm
the accuracy of the royalty calculations hereunder. At the request of CTI,
BIOCHEM shall (and shall assure that its sublicensees shall) permit an
independent certified or chartered accountant appointed by CTI, at reasonable
times and upon reasonable notice, to examine these records solely to the extent
necessary to verify such calculations. Such investigation shall be at the
expense of CTI unless it reveals an error on the part of BIOCHEM resulting in
CTI having received less than ninety-five percent (95%) of the royalties due to
CTI pursuant to this Agreement, in which event such investigation shall be at
BIOCHEM's expense.

4.6   No Non-Monetary Consideration for Sales. Without the prior written consent
      ---------------------------------------
of CTI, BIOCHEM and its Affiliates and agents shall not accept or solicit any
non-monetary consideration in the sale of a Licensed Product or Combination
Product other than as

<PAGE>
 
                                                                             /11

would be reflected in Net Sales. The foregoing shall not, however, preclude
BIOCHEM or its Affiliates or agents from legitimate distribution of promotional
samples of Licensed Products and Combination Products in customary quantities.

4.7   Withholding. Any tax which BIOCHEM is required to pay or withhold with
      -----------
respect to payments to be made to CTI hereunder shall be deducted from the
amount otherwise due provided that, in regard to any such deduction, BIOCHEM
and/or its Affiliates shall give CTI such assistance as may reasonably be
necessary to enable or assist CTI to claim exemption therefrom or a reduction
thereof and shall upon request provide documentation from time to time as to
confirm the payment by BIOCHEM of such withholding tax to the appropriate
Governmental Body.


                                   ARTICLE V
                            MANUFACTURE AND SUPPLY
                            ----------------------

5.1   CTI shall supply or ensure supply to BIOCHEM and BIOCHEM's sublicensees
all of their requirements of Bulk Materials for the final finish and fill of
Licensed Products and Combination Products pursuant to the terms and conditions
of the Supply Agreement attached hereto as Exhibit "D" which is incorporated
herein by this reference. In the event that a Licensed Product or Combination
Product is not manufactured by CTI, CTI shall ensure the supply of Bulk
Materials to BIOCHEM by CTI licensees or third party manufacturers on the same
terms and conditions, the whole as set forth in the Supply Agreement.


                                  ARTICLE VI
                                    PATENTS
                                    -------

6.1   Abandonment of Patent Rights. CTI shall have the right, in its sole
      ----------------------------
discretion, to abandon any of the Licensed Patents, in whole or in part. In the
event that CTI elects to do so, it shall first offer to BIOCHEM free of charge,
the right to assume and maintain, at no cost to CTI, such Licensed Patents in
BIOCHEM's name or in CTI's name. CTI shall ensure that CTI's abandonment of any
Licensed Patents shall not materially affect BIOCHEM's rights under the present
license to continue to sell in the Territory the same Licensed Products and
Combination Products as those which are developed by CTI or CTI's licensees and
sold outside the Territory.

6.2   Patent Filings: Maintenance: Prosecution
      ----------------------------------------

      (a) CTI shall have the responsibility at its expense to obtain, sustain
          and enforce patent rights. Such responsibility shall include, without
          limitation, the following:

<PAGE>
 
                                                                             /12

          (i)   filing applications for Canadian patents for any inventions
                pertaining to Licensed Products or Combination Products;

          (ii)  subject to the provisions of Sections 6.2 and 6.3, prosecuting
                all pending and new patent applications included within the
                Licensed Patents and responding to oppositions or any other form
                of action for invalidity or revocation of patent rights that may
                be filed by third parties against the grant of patents for such
                applications; and

          (iii) maintaining in force such patents and patent applications
                included within the Licensed Patents by duly filing all
                necessary papers and paying any fees required by the patent Laws
                of the Territory.

      (b) CTI shall provide to BIOCHEM copies of all documents relating to the
          prosecution of all patent applications pertaining to Licensed Products
          or Combination Products.

      (c) CTI shall execute, and CTI agrees to procure from any inventor(s) or
          the beneficiaries or executors of such inventor(s), his or her
          agreement to execute all documents and perform all acts, at CTI's
          expense, reasonably necessary to file, prosecute, maintain and enforce
          the Licensed Patents.

      (d) BIOCHEM shall cooperate fully with CTI on all matters relating to the
          filing, prosecution and maintenance of Licensed Patents.

      (e) BIOCHEM shall contribute ten thousand Canadian dollars ($10,000.00)
          per year towards the total patent costs of CTI's Canadian patents
          covering Licensed Products and Combination Products.

6.3   Infringement by Third Parties. In the event that BIOCHEM or CTI
      ----------------------------- 
determines that a third party is making, using, or selling a product that may
infringe a Licensed Patent, it will promptly notify the other Party in writing.
CTI may bring suit against such alleged infringer. In the event that CTI decides
to bring suit, it shall give prompt written notice to BIOCHEM of that fact, and
BIOCHEM shall take all reasonable steps to assist CTI in such suit. CTI shall be
entitled to all amounts recovered in such suit, except that BIOCHEM shall have
the right to elect to pay up to fifty percent (50%) of the litigation costs and
receive a percentage of any recovery equal to the percentage of litigation costs
paid. BIOCHEM must make such election within sixty (60) days of its receipt of
CTI's notice that CTI has decided to bring suit. BIOCHEM shall also have the
right to be represented by separate counsel at is own expense in any such suit.
CTI shall have control over any such suit, and decisions as to settlement,
methods and/or terms and conditions for resolving the suit shall be made by CTI
after consultation with BIOCHEM. If CTI elects not to bring a suit against the
alleged infringer, it shall promptly notify BIOCHEM of that fact, and BIOCHEM
shall have the right, at its option, to commence such action at its own cost and
expense,

<PAGE>
 
                                                                             /13

in which case BIOCHEM shall be entitled to all amounts recovered in such action.
CTI shall take all reasonable steps to assist BIOCHEM in such suit.

6.4   Third Party Patent Rights.  If any warning letter or other notice of
      -------------------------
infringement is received by a Party, or an action, suit or proceeding is brought
against a Party alleging infringement of a patent right of any third party by
reason of the manufacture, use or sale of a Licensed Product or Combination
Product, the recipient Party shall promptly notify the other Party. The Parties
shall consult with each other to consider appropriate steps to respond to such
claims including, without limitation, litigation, the undertaking of a license
with the third party patent holder or termination of the license.


                                  ARTICLE VII
                                CONFIDENTIALITY
                                ---------------

7.1   As to each Licensed Product and Combination Product, during the Term and
for five (5) years thereafter, in respect of each Licensed Product and
Combination Product, each Party shall keep confidential and not use, for any
purpose other than as authorized under this Agreement, any information of the
other Party that is furnished to it by the other Party for the purposes of this
Agreement. The foregoing obligation shall not apply to any information:

      (a) that was already known to the receiving Party, other than under an
          obligation of confidentiality, at the time of disclosure;

      (b) that was generally available to the public or otherwise part of the
          public domain at the time of its disclosure to the receiving Party;

      (c) that became generally available to the public or otherwise part of the
          public domain after its disclosure and other than through any act or
          omission of the receiving Party in breach of this Agreement; or

      (d) that was subsequently lawfully disclosed to the receiving Party by a
          third party;

      (e) that is independently developed by the receiving Party as can be
          demonstrated by documentary evidence;

Each Party may disclose the other Party's confidential information to the extent
such disclosure is reasonably necessary in filing or prosecuting patent
applications, prosecuting or defending litigation, complying with applicable
governmental regulations, making a permitted sublicense of or otherwise entering
into business relationship with respect to its rights hereunder, or conducting
clinical trials; provided, however, that prior to making any such disclosure the
Party intending to do so will give reasonable advance notice to the other Party
of such disclosure requirement and, to the extent appropriate, use its best
efforts to secure confidential treatment of such information prior to its
disclosure.

<PAGE>
 
                                                                             /14

                                 ARTICLE VIII
                                INDEMNIFICATION
                                ---------------

8.1   CTI shall indemnify, protect and hold BIOCHEM and BIOCHEM's directors,
officers, employees and agents harmless from and against any and all losses,
damages, fines, costs, expenses (including reasonable attorneys' fees) and
liabilities (including but not limited to claims, actions, legal proceedings or
lawsuits, based on any civil, criminal, statutory or regulatory claims of
liability (referred to collectively as "Liabilities"), asserted at any time
arising out of or involving:

      (a) a breach by CTI of its obligations under this Agreement including the
          Supply Agreement, or

      (b) the manufacture and/or supply of Licensed Products or Combination
          Products.

8.2   BIOCHEM shall indemnify, protect and hold CTI and CTI's directors,
officers, employees and agents harmless from and against any and all losses,
damages, fines, costs, expenses (including reasonable attorneys' fees) and
liabilities (including but not limited to claims, actions, legal proceedings or
lawsuits, based on any civil, criminal, statutory or regulatory claims of
liability (referred to collectively as "Liabilities"), asserted at any time
arising out of or involving:

      (a) a breach by BIOCHEM of its obligations under this Agreement including
          the Supply Agreement, or

      (b) all activities of BIOCHEM in connection with BIOCHEM's seeking HPB
          approval and the final fill and finish of Licensed Products and
          Combination Products and the sale, promotion and commercialization
          thereof in the Territory.

8.3   No indemnification shall be made by a Party to the extent any Liabilities
arise out of, result from or involve the fault, negligence, omission or willful
misconduct of the Party or of the other Persons seeking indemnification.

8.4   Nothing in this Section will be construed as limiting the rights and
resources otherwise available to the Parties at law or in equity, if any.

<PAGE>
 
                                                                             /15

                                  ARTICLE IX
                               TERM: TERMINATION
                               -----------------

9.1   Term. As to each Licensed Product or Combination Product, the "Term"
      ----
shall mean that period of time commencing with effect from the Effective Date
and, unless sooner terminated as provided herein, expiring (i) upon the date of
the last to expire Licensed Patent covering such Licensed Product or Combination
Product or (ii) in the absence of any such Licensed Patent, upon the tenth
(10th) anniversary of the date of first commercial sale of such Licensed Product
or Combination Product by BIOCHEM in the Territory. Upon the expiration of the
Term in respect of each Licensed Product or Combination Product, BIOCHEM shall
have the exclusive license and right under the Technology to continue to use,
sell and have sold such Licensed Products and Combination Products within the
Field in the Territory without any further consideration whatsoever being
payable to CTI.

9.2   Breach.
      ------

      (a) Failure by a Party to comply with any of the material obligations
          contained herein shall entitle the Party not in default to give to the
          Party in default notice specifying the nature of the default and
          requiring it to make good such default. If such default is not cured
          within sixty (60) days after the receipt of such notice, or diligent
          steps taken to cure if by its nature such default could not be cured
          in sixty (60) days, the Party not in default shall be entitled,
          without prejudice to any of its other rights conferred on it by this
          Agreement, and in addition to any other remedies available to it by
          law or in equity, to terminate this Agreement; provided, however, that
          such right to terminate shall be stayed if, during such sixty (60) day
          period, the Party alleged to have been in default shall:

          (i)  have initiated arbitration in accordance with Section 10.12,
               below, with respect to the alleged default; and

          (ii) be diligently and in good faith cooperating in the prompt
               resolution of such arbitration proceedings.

      (b) The right of a Party to terminate this Agreement shall not be affected
          in any way by its waiver or failure to take action with respect to any
          prior default.

      (c) Termination By BIOCHEM. BIOCHEM may terminate this Agreement at any
          ----------------------
          time with respect to a specific Licensed Product or Combination
          Product on prior thirty (30) days written notice to CTI.

<PAGE>
 
                                                                             /16

9.3   Accrued Rights, Surviving Obligations.
      -------------------------------------

      (a) Termination, relinquishment or expiration of this Agreement for any
          reason shall be without prejudice to any rights which shall have
          accrued to the benefit of a Party prior to such termination,
          relinquishment or expiration. Further, any such termination,
          relinquishment or expiration, shall not relieve a Party from
          obligations which are expressly indicated to survive termination,
          relinquishment or expiration of this Agreement.

      (b) Without limiting the foregoing, Section 4.5, Article VII, Article VIII
          and Section 10.4 of this Agreement shall survive the expiration or
          termination of this Agreement.


                                   ARTICLE X
                           MISCELLANEOUS PROVISIONS
                           ------------------------

10.1  Relationship of the Parties. Nothing in this Agreement is intended or
      ---------------------------
shall be deemed to constitute a partnership, agency or employer-employee
relationship between the Parties. Neither Party shall incur any debts or make
any commitments for the other.

10.2  Assignments. Except as expressly provided herein, neither this Agreement
      -----------
nor any interest hereunder shall be assignable, nor any other obligation
delegable, by a Party without the prior written consent of the other; provided,
however, that a Party"may assign this Agreement to any wholly-owned affiliate of
it or of its parent company or to any successor by merger or sale of
substantially all of its assets to which this Agreement relates provided that
the assignor shall guarantee and remain liable and responsible for the
performance and observance of all its duties and obligations hereunder. This
Agreement shall be binding upon the successors and assigns of the Parties
including assignees of any rights with respect to any Licensed Patents, Licensed
Products, Combination Products or Technology. Any assignment not in accordance
with this Section 10.2 shall be void.

10.3  Disclaimer of Warranties. THE PARTIES EXPRESSLY DISCLAIM ALL WARRANTIES,
      ------------------------
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OR MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT OF THIRD PARTY PATENTS,
UNLESS OTHERWISE EXPRESSLY PROVIDED IN THIS AGREEMENT.

10.4  Representations and Warranties. CTI and BIOCHEM each represents and
      ------------------------------
warrants to the other that:

      (a) is free to enter into this Agreement;

      (b) in so doing it will not violate any other agreement to which it is 
          Party;

<PAGE>
 
                                                                             /17

      (c) (in respect of CTI only) to the best of CTI's knowledge, there is no
          outstanding claim or allegation that the Licensed Patents and/or
          Technology infringe upon any rights of a third party nor any potential
          claim or allegation that the Licensed Patents and/or Technology
          infringe upon the rights of a third party;

      (d) is a corporation duly organized and validly existing under the laws of
          the jurisdiction indicated above and, by virtue of such jurisdiction's
          laws, is in good standing as a domestic corporation of such
          jurisdiction;

      (e) it is qualified to do business in all jurisdictions in which such
          qualification is necessary in order to perform its obligations
          hereunder;

      (f) (in respect of CTI only) it is the owner or licensee of the patents
          and patent applications listed on Exhibit "A", free and clear of any
          liens, third party claims or restrictions inconsistent with the grant
          of rights set forth herein.

      (g) the execution, delivery and performance by it of this Agreement have
          been duly authorized by all requisite corporate action and each such
          document, when signed, will constitute its legal, valid and binding
          obligation, enforceable according to its terms and condition; and

      (h) (in respect of CTI only) all Licensed Products and Combination
          Products shall conform to the specifications for Licensed Products and
          Combination Products, agreed to between the Parties as well as the
          specifications which will be approved by the FDA.

10.5  Further Actions. Each Party agrees to execute, acknowledge and deliver
      ---------------
such further instruments and to do all such other acts as may be reasonably
necessary or reasonably appropriate in order to carry out the purposes and
intent of this Agreement.

10.6  Force Majeure. For the purposes of this Agreement, an "Event of Force
      -------------
Majeure" shall include the following:

      (a) acts of gods;

      (b) expropriation, confiscation or requisitioning of facilities or
          compliance with any Law which affects to a degree not presently
          existing the supply, availability or use of materials or labour;

      (c) acts or inaction on the part of any governmental authority or Person
          purporting to act thereof;

      (d) embargoes, or acts of war or the public enemy, whether war be declared
          or not;

<PAGE>
 
                                                                             /18

      (e) strikes, public disorder, insurrection, rebellion, riots or violent
          demonstrations;

      (f) floods, earthquakes, lightning, hail, inclement weather conditions or
          other natural calamities.

If any Party wishes to invoke an Event of Force Majeure, then it shall (a)
immediately following the commencement of such Event of Force Majeure notify the
other Parties of the occurrence of such Event of Force Majeure, the reasonably
estimated date and time on which it commenced and the nature of the Event of
Force Majeure, and (b) as soon as reasonably practicable thereafter, submit to
the other Parties proof of the Event of Force Majeure.

If one of the Parties is unable to perform its obligations under this Agreement
because of an Event of Force Majeure, then such Party shall be excused from
performance of its obligations under this Agreement until the Event of Force
Majeure terminates and the obligations of such Party, which cannot be met due to
the Event of Force Majeure, shall be suspended during the pendency of the Event
of Force Majeure, provided that such Party uses all reasonable efforts to
attempt to prevent, avoid or remove the Event of Force Majeure within the
shortest possible delay.

If an Event of Force Majeure subsists for a period longer than ninety (90) days,
then either Party may seek termination of this Agreement in respect of the
Licensed Product or Combination Product affected by such Event of Force Majeure.

10.7  Trademark Rights. CTI hereby grants the right to BIOCHEM to file a
      ----------------
trademark application to obtain Canadian trademark registration for the
trademark PROTEC. Except as aforementioned, no right, express or implied, is
granted by this Agreement to a Party to use in any manner the name or any other
trade name or trademark of the other Party in connection with the performance of
this Agreement.

10.8  Public Announcements. The Parties shall consult with each other and reach
      --------------------
mutual agreement before making any public announcement concerning this Agreement
or the terms hereof. This Section shall not enable either Party to prevent a
public announcement by the other Party which announcement is required by Law,
following consultation between the Parties.

10.9  Entire Agreement of the Parties; Amendments. This Agreement (including
      -------------------------------------------
the Exhibits hereto) constitutes and contains the entire understanding and
agreement of the Parties and cancels and supersedes any and all prior
negotiations, correspondence, understandings and agreements between the Parties,
whether oral or written, respecting the subject matter hereof. No waiver,
modification or amendment of any provision of this Agreement shall be valid or
effective unless made in writing and signed by a duly authorized officer of each
Party.

<PAGE>
 
                                                                             /19

10.10 Applicable Law. This Agreement shall be governed by and interpreted in
      --------------
accordance with the laws of the State of Washington, U.S.A., applicable to
contracts entered into and to be performed wholly within the State of
Washington.

10.11 Severability. If and to the extent that any court or tribunal of competent
      ------------
jurisdiction holds any of the terms or conditions of this Agreement, or the
application thereof to any circumstances, to be invalid or unenforceable in a
final nonappealable order, the Parties shall use their best efforts to reform
the portions of this Agreement declared invalid to realize the intent of the
Parties as fully as practicable, and the remainder of this Agreement and the
application of such invalid term or provision to circumstances other than those
as to which it is held invalid or unenforceable shall not be affected thereby,
and each of the remaining terms and provisions of this Agreement shall remain
valid and enforceable to the fullest extent permitted by Law.

10.12 Notices and Deliveries. Any notice, request, delivery, approval or consent
      ----------------------
required or permitted to be given under this Agreement shall be in writing and
shall be deemed to have been sufficiently given if delivered in person,
transmitted by telecopier (confirmation of receipt by confirmed facsimile
transmission being deemed receipt of communication sent by telecopy) or five
days after it was sent, by registered letter (or its equivalent) to the Party to
which it is directed at its address shown below or such other address as such
Party shall have last given by notice to the other Parties.

      (a) If to BIOCHEM, addressed to:

          BIOCHEM THERAPEUTIC INC.
          275 Armand-Frappier Boulevard
          Laval, Quebec, Canada
          H7V 4A7

          Attention:  President
                      ---------

          Telecopier: (514) 978-7767


      (b) If to CTI, addressed to:

          CELL THERAPEUTICS, INC.
          201 Elliott Avenue West
          Seattle, WA USA 98119

          Attention:  President & CEO
                      ---------------

          Telecopier: (206) 284-6114

<PAGE>
 
                                                                             /20

10.13 Disputes. All disputes arising out of or in connection with this Agreement
      --------
shall be finally settled by binding arbitration, in English, by one arbitrator
appointed by the American Arbitration Association. The arbitration shall be
conducted in accordance with the Commercial Arbitration Rules of the American
Arbitration Association. The arbitrator shall have the technical expertise
required to understand and arbitrate the dispute. Such arbitration shall be held
in Seattle, Washington U.S.A. if initiated by BIOCHEM and in Montreal, Quebec,
if initiated by CTI. The costs of any arbitration, including administrative and
arbitrators' fees, shall be shared equally by the Parties and each Party shall
bear its own costs and attorneys' and witness' fees, provided however, that the
prevailing Party, if determined by the arbitrator, shall be entitled to an award
against the other Party in the amount of the prevailing Party's costs (including
arbitration costs) and reasonable attorney's fees.

10.14 No Third Party Beneficiaries. Except as specifically provided in this
      ----------------------------
Agreement, no Person not a Party to this Agreement, including any employee of
any Party to this Agreement, shall have or acquire any rights by reason of this
Agreement, nor shall any Party hereto have any obligations or liabilities to
such other Person solely by reason of this Agreement.

IN WITNESS WHEREOF, the Parties have caused this Agreement to be executed by
their respective duly authorized officers as of the day and year first above
written, each copy of which shall for all purposes be deemed to be an original.


- ------------------------------         CELL THERAPEUTICS, INC.
witness

- ------------------------------         per: /s/ James Bianco
witness                                ----------------------------------------
                                            Dr. James Bianco, President & CEO


                
                                       BIOCHEM THERAPEUTIC INC.

- -----------------------------          per: /s/ Michael Grey 
witness                                ----------------------------------------
                                            Michael Grey, President

- ----------------------------           per: /s/ Mario Thomas
witness                                ----------------------------------------
                                            Dr. Mario Thomas
                                            Vice-President, Business Development

<PAGE>
 
                                   EXHIBITS
                                   --------

        Exhibit A   -   List of Patents and Patent Applications
        Exhibit B   -   Nominees of the Management Committee
        Exhibit C   -   Subscription Agreement and Confidential Private
                        Placement Memorandum
        Exhibit D   -   Supply Agreement
        Exhibit E   -   Product Description



<PAGE>
 
                                 EXHIBIT A

Canadian patent applications or PCT patent applications designating Canada which
contain subject matter relating to a Licensed Product.

(The information below marked by ***** has been omitted by a request for 
confidential treatment.  The omitted portion has been separately filed with the 
Commission)

Serial No.      CTI Docket      Licensed Subject Matter
- ----------      ----------      -----------------------
  ******          ******                 ******
  ******          ******                 ******
  ******          ******                 ******
  ******          ******                 ******

1. *****

U.S. Patent Applications relating to Lisofylline that have not yet been filed in
Canada or by PCT designating Canada and are still within priority year.

Serial No.      CTI Docket      Licensed Subject Matter
- ----------      ----------      -----------------------
  ******          ******                 ******
  ******          ******                 ******
  ******          ******                 ******
  ******          ******                 ******


<PAGE>
 
                                 EXHIBIT B

                   Nominees of the Management Committee

BioChem Pharma
- --------------

Guy Ely, M.D.

Mario Thomas, Ph.D.


Cell Therapeutic, Inc.
- ----------------------

James Bianco, M.D.

Jack Singer, M.D.

<PAGE>
 
                                 EXHIBIT C


   Subscription Agreement and Confidential Private Placement Memorandum

                            [See Exhibit 10.18]

<PAGE>
 
                                 EXHIBIT D


                               Supply Agreement

                              [See Exhibit 10.21]

<PAGE>
 
                                 EXHIBIT E


                      LISOFYLLINE PRODUCT DEFINITION

Lisofylline and structural analogs having a structure in the following
pharmacophor:

(The information below marked by ***** has been
omitted by a request for confidential treatment.
The omitted portion has been separately filed 
with the Commission)

                ******

******

                                       1

<PAGE>
 
                                   EXHIBIT E


                          CT-2584 PRODUCT DEFINITION

CT-2584, homologs and analogs are structurally and functionally within the 
following defined compound genus:

(The information below marked by ***** has been
omitted by a request for confidential treatment.
The omitted portion has been separately filed 
with the Commission)

        ******

******
                                       2

   

<PAGE>
 
[LOGO]
BIOCHEM PHARMA
        BIOCHEM THERAPEUTIC


        ---------------------------------------------------------------

                              AMENDING AGREEMENT

        ---------------------------------------------------------------

                                BY AND BETWEEN


                           BIOCHEM THERAPEUTIC INC.

                                      AND

                            CELL THERAPEUTICS, INC.



                         Dated as of November 30, 1995


<PAGE>
 
                              AMENDING AGREEMENT
                              ------------------

THIS AMENDING AGREEMENT is dated the Thirtieth (30th) day of November 1995.

BY AND BETWEEN:         BIOCHEM THERAPEUTIC INC., a corporation, incorporated
                        under the laws of Quebec, with its principal place of
                        business located at 275 Armand-Frappier Boulevard,
                        Laval, Quebec, Canada H7T 4A7;

                                         (hereinafter referred to as "BIOCHEM"),


AND;                    CELL THERAPEUTICS, INC., a corporation organized and
                        existing under the laws of the State of Washington,
                        having its principal place of business at 201 Elliott
                        Avenue West, Seattle, Washington, United States of
                        America, 98119;

                                              (hereinafter referred to as "CTI")

RECITALS:
- ---------

A.    CTI and BIOCHEM are Parties to a Collaboration Agreement dated as of March
      7th, 1995 (the "Collaboration Agreement");

B.    The Parties wish to modify the wording of Section 4.2 of the Collaboration
      Agreement so as to clarify, and to express their mutual understanding at
      the meaning and intent thereof;

C.    Section 10.9 of the Collaboration Agreement provides that no waiver,
      modification or amendment of any provision of the Collaboration Agreement
      shall be valid or effective unless made in writing and signed by a duly
      authorized officer of each Party;

NOW, THEREFORE, in consideration of the payment of the sum of ten U.S. Dollars
(US $10) by each Party to the other, the receipt and sufficiency of which is
hereby acknowledged by each Party, the Parties agree as follows:

1.    Existing Section 4.2 of the Collaboration Agreement shall be deleted and
      replaced with the following:

<PAGE>
 
                                                                              /2

"4.2  License Fee and Benchmark Payments. In addition to the other payments to
 ---------------------------------------
CTI provided herein, BIOCHEM shall make non-refundable payments to CTI in the
amounts and at the times set forth below:

(The information below marked by ***** has been
omitted by a request for confidential treatment.
The omitted portion has been separately filed 
with the Commission)

(a)   ****** within thirty (30) days following the beginning of a Phase II
      clinical trial by CTI or its licensee in the U.S. for the Licensed Product
      containing CT-1501R for clinical trials in bone marrow transplantation and
      AML; as well as ****** within thirty (30) days following the commencement
      of Phase II clinical trials in the U.S. by CTI or its licensee for any one
      Licensed Product or Combination Product containing CT-2584;

(b)   ****** within thirty (30) days following the commencement of Phase III
      clinical trials in the U.S. by CTI or its licensee for any one licensed
      product or combination product containing CT-1501R; as well as ******
      within thirty (30) days following the commencement of Phase III clinical
      trials in the U.S. by CTI or its licensee for any one Licensed Product or
      Combination Product containing CT-2584;

(c)   ****** within thirty (30) days of the filing of an NDS in the Territory by
      BIOCHEM for any one Licensed Product or Combination Product containing CT-
      1501R; as well as ****** within thirty (30) days of the filing of an NDS
      in the Territory by BIOCHEM for any one Licensed Product or Combination
      Product containing CT-2584; and

(d)   ****** within thirty (30) days of the first commercial sale in the
      Territory of any one Licensed Product or Combination Product containing 
      CT-1501R; as well as ****** within thirty (30) days of the first
      commercial sale in the Territory of any one Licensed Product or
      Combination Product containing CT-2584;

IT BEING UNDERSTOOD BETWEEN THE PARTIES THAT THE MAXIMUM AMOUNT POTENTIALLY
PAYABLE BY BIOCHEM TO CTI UNDER EACH OF SUBSECTIONS 4.2(a) to (d) IS AS FOLLOWS:

Subsection 4.2(a)       ******
Subsection 4.2(b)       ******
Subsection 4.2(c)       ******
Subsection 4.2(d)       ******

<PAGE>
 
                                                                              /3

      As soon as CTI intends to, or as soon as CTI receives a notice from a CTI
      licensee that such licensee intends to, commence Phase II clinical trials
      or Phase III clinical trials for any Licensed Product or Combination
      Product in the U.S., CTI shall provide BIOCHEM with noticale thereof."

2.    Capitalized terms used herein shall have the meaning afforded thereto in
      the Collaboration Agreement, unless the context otherwise requires.

3.    Except as expressly provided for herein, the Collaboration Agreement shall
      continue in full force and have affect between the Parties, unamended.

4.    Notwithstanding the date of execution hereof, this Amending Agreement
      shall be deemed to have taken effect as of the Seventh (7th) day of March
      1995, being the effective date of the Collaboration Agreement.

IN WITNESS WHEREOF, the Parties have caused this Amending Agreement to be
executed by their respective duly authorized officers as of the day and year
first above written, each copy of which shall for all purposes be deemed an
original.


                                       CELL THERAPEUTICS, INC.
- ------------------------------         
Witness                                per: 
                                       ----------------------------------------
                                       Name:  Dr. James Bianco 
- ------------------------------         Title: President & CEO
Witness                                



                                       BIOCHEM THERAPEUTIC INC.
- ------------------------------         
Witness                                per:   /s/ Michael Grey  
                                       ----------------------------------------
                                       Name:  Michael Grey
                                       Title: President

- ------------------------------
Witness                                per:   /s/ Mario Thomas
                                       ----------------------------------------
                                       Name:  Mario Thomas
                                       Title: Vice-President, Business Planning
                                              & Development



<PAGE>
 
                                                                   Exhibit 10.21

[LOGO]                                          
BIOCHEM PHARMA                          Portions of this Exhibit have been
        BIOCHEM THERAPEUTIC             omitted pursuant to a request for
                                        confidential treatment. The omitted
                                        portions are ***** marked and have been
                                        filed separately with the Commission


        ---------------------------------------------------------------

                               SUPPLY AGREEMENT

        ---------------------------------------------------------------


                                By and between


                           BIOCHEM THERAPEUTIC INC.

                                      and

                            CELL THERAPEUTICS, INC.


                           Made as OF MARCH 7, 1995


BIOCHEM THERAPEUTIC INC.

A SUBSIDIARY OR BIOCHEM PHARMA INC
275 ARMAND-FRAPPIER BLVD
LAVAL. QUEBEC
CANADA H7V 4A7
TEL: (514) 687-4910
FAX: (514) 978-7767

(The information below marked ***** by has been
omitted by a request for confidential treatment.
The omitted portion has been separately filed 
with the Commission)


<PAGE>
 
                                SUPPLY AGREEMENT


THIS SUPPLY AGREEMENT is made and effective as of this 7th day of March, 1995,
by and between Cell Therapeutics, Inc., a corporation organized and existing
under the laws of the State of Washington, USA ("CTI") and BIOCHEM Therapeutic
Inc., a corporation organized and existing under the laws of Quebec, Canada
("BIOCHEM").

WHEREAS:

CTI and BIOCHEM are parties to a certain Collaboration Agreement effective as of
the _____ day of March, 1995 (the "Collaboration Agreement" ); and

Pursuant to the Collaboration Agreement, CTI is to supply to BIOCHEM, and
BIOCHEM is to
 purchase from CTI, Licensed Products and Combination Products to
be used and sold by within the Territory; and

The parties wish to provide the specific terms and conditions under which such
supply will occur.

NOW, THEREFORE, CTI and BIOCHEM agree as follows:


                                   ARTICLE I

                                  DEFINITIONS

Unless otherwise specified herein, capitalized terms used herein shall have the
meaning indicated in the Collaboration Agreement. In addition, when used herein
the following term shall have the meaning indicated:



<PAGE>
 
1.1   "Manufacturing Cost" of a product manufactured for BIOCHEM under this
       ------------------
Agreement shall mean the fully burdened manufacturing cost of producing the
product, including the cost of direct materials, direct labour and allocated
manufacturing overhead. Allocated manufacturing overhead, for purposes of
Manufacturing Cost, shall consist of the allocation of those costs in support of
manufacturing the specified volume of the product for BIOCHEM under this
Agreement, including, without limitation, expenses related to utilities,
operating supplies, plant maintenance, plant administrative services,
supervisory labour, rent, insurance, taxes (other than income taxes, business
taxes and occupation taxes, and depreciation, all allocable to production based
on the application of existing U.S. generally accepted accounting principles
applied on a consistent basis. The basis of allocation of such expenses to the
manufacturing overhead for the product manufactured for BIOCHEM under this
Agreement shall be the monthly volume of the product manufactured for BIOCHEM
divided by the total monthly volume of all products manufactured at the
particular manufacturing plant facility multiplied by the total manufacturing
overhead costs allocable to total production for the month.

1.2   "Specifications" shall mean those specifications for each Licensed Product
       --------------
and Combination Product submitted to the U.S. Food and Drug Administration for
marketing approval in the U.S. and approved by the FDA.


                                  ARTICLE II

                              SUPPLY OF PRODUCTS


2.1   Purchase and Sale of Products.   Subject to the terms and conditions
- -----------------------------------
hereof, during the term of this Supply Agreement CTI shall supply to BIOCHEM,
and BIOCHEM shall purchase from CTI, all of BIOCHEM's requirements of Licensed
Products and Combination Products for use or sale in the Territory. In the event
that the Licensed Products or Combination Products are manufactured by a CTI

                                     - 2 -

<PAGE>
 
licensee or third party manufacturer, CTI shall ensure that BIOCHEM receives
supply of its requirements for Licensed Products and Combination Products from
such licensee or third party manufacturer on the same terms and conditions as if
supplied by CTI.  All such products shall be supplied to BIOCHEM in the form of
Bulk Materials, which shall be finally finished and filled by or on behalf of
BIOCHEM.

2.2   Product Estimates and Purchase Orders.   (a) If BIOCHEM decides, at its
- -------------------------------------------
option, to have clinical trials conducted in the Territory or to use Licensed
Product or Combination Product for non-commercial purpose, it shall so advise
CTI and CTI shall supply to BIOCHEM licensed Product and/or Combination Product
for such purpose at the price set forth in Section 2.3(i).

(b) During the 12 month period following approval of the sale of each Licensed
Product or Combination Product by the HPB, ("HPB Approval") on the first
business day of each month, BIOCHEM will provide CTI a forecast for the
succeeding month, which forecast shall be binding on BIOCHEM.

(The information below marked by ***** has been omitted by a request for 
confidential treatment.  The omitted portion has been separately filed with the 
Commission)

(c)   (i) *****, BIOCHEM shall in good faith provide CTI with an estimate of the
total number of units of each Licensed Product and Combination Product to be
purchased by BIOCHEM over the ***** of shipments to be made by CTI during such
*****.

      (ii) No fewer than ***** before the end of each ***** BIOCHEM shall
provide CTI with a ***** forecast showing BIOCHEM's projected requirements of
each Licensed Product and Combination Product during the upcoming *****, the
first ***** of which forecast

                                     - 3 -

<PAGE>
 
shall constitute firm purchase commitments in units and cost by BIOCHEM.

(c) CTI shall use its best efforts to ship all Licensed Products and Combination
Products in the form and at the tine specified by BIOCHEM, with the proper
identification on the packaging as required by applicable authorities. CTI shall
use its best efforts to fill each purchase order from the same production lot.

(d) Each Licensed Product and Combination Product shipped by CTI shall have a
remaining shelf-life as of the date of shipment equal to the greater of 12
months or one-half of the total approved shelf-life of such product.

(e) All orders placed by BIOCHEM hereunder shall be in writing in the form of a
purchase order, shall be identified by a purchase order number, and shall be
transmitted to CTI by mail or facsimile. CTI shall send to BIOCHEM written
confirmation of each such purchase order, and of all forecasts made by BIOCHEM
hereunder, within one week of CTI's receipt thereof.

2.3   Price.   (a) The cost to BIOCHEM of Licensed Products and Combination
- -----------
Products supplied by CTI hereunder shall be:

(The information below marked by ****** has been omitted by a request for 
confidential treatment.  The omitted portion has been separately filed with the 
Commission)

      (i)  for materials to be used for clinical studies or other non-commercial
purposes, ******;

      (ii) for materials to be used for commercial sale or for promotion in
support of commercial sale, ******; provided, however, that the cost to BIOCHEM
of a Licensed Product supplied pursuant to this Supply Agreement shall not, in
any calendar year, ******

                                     - 4 -

<PAGE>
 
(b) BIOCHEM shall be responsible for freight, freight brokerage,
customs duties, insurance and risk of loss following the delivery of Licensed
Products to BIOCHEM, F.O.B. CTI's manufacturing facilities in the United States
of America, pursuant to BIOCHEM's instructions.

2.4   Non-Conforming Product.   Licensed Products and Combination Products
- ----------------------------
supplied by CTI hereunder shall be produced by CTI in accordance with the
Specifications and in accordance with all U.S. law and regulations (including
CGMP regulations of the FDA). As between the parties, any claim of non-
conforming product must be submitted to CTI within the period of remaining shelf
life for such product as specified by CTI, accompanied by a report of analysis
thereof made within such period of remaining shelf life, using methods generally
approved in the U.S. and Canadian pharmaceutical industries. If, after CTI's own
investigation (which shall be completed within 30 days after receipt by CTI of
BIOCHEM's report), CTI, in its reasonable judgment, Agrees with the claim of
nonconformity and BIOCHEM has paid for the non-conforming product, CTI shall
promptly replace the non-conforming product with conforming product or, at
BIOCHEM's option, credit BIOCHEM for the amount paid for the non-conforming
product, including freight, brokerage, customs duties and insurance charges
previously paid by BIOCHEM with respect thereto. The non-conforming product
shall be returned to CTI if requested by CTI in writing within 30 days after
receipt by CTI of BIOCHEM's report, at CTI's expense; absent such request,
BIOCHEM shall destroy the non-conforming product at CTI's expense. If, after its
own analysis, CTI does not agree with the claim of non-conformity, the parties
shall in good faith attempt to agree upon a settlement of the issue, failing
which the matter may be referred for arbitration as provided herein. During the
pendency of any such settlement negotiations or arbitration, CTI shall use its
best efforts to replace the allegedly non-conforming Licensed Product. If a
claim regarding a Licensed Product or Combination Product is made by a third
party, BIOCHEM shall promptly give

                                     - 5 -

<PAGE>
 
notice thereof to CTI following receipt of same and the above delay for claiming
non-conformity and limit of CTI's liability shall not apply regarding third
party claims.

2.5   Method of Payment.   Subject to Section 2.4, payments due pursuant to this
- -----------------------
Supply Agreement shall be made by wire transfer of United States Dollars in the
requisite amount to such account as CTI may from time to time designate by
written notice to BIOCHEM, without set-off.


                                  ARTICLE III

                             TERMS AND CONDITIONS

3.1   Shipment.   As to each order placed by BIOCHEM pursuant to Section 2.2,
- --------------
CTI shall ship materials to such destinations as may be specified by BIOCHEM, by
a carrier reasonably identified by BIOCHEM. Except as provided herein with
respect to non-conforming product, title and risk of loss as to all materials
shipped shall pass upon transfer by CTI to such carrier at the manufacturing
facility. A packing list will be included in each shipment. BIOCHEM shall be the
importer of record of each shipment.

3.2   Payment.   Within ten days after each shipment ordered and shipped
- -------------
pursuant to this Supply Agreement, an invoice relating to such shipment shall be
rendered by CTI to BIOCHEM, and payment thereon shall be due within 30 days of
the later of the receipt of the invoice or the date on which such shipment is
released by HPB, if such release is required. BIOCHEM shall pay CTI interest on
overdue payments at the lesser of: (i) 12 percent per annum, or (ii) the maximum
rate allowed under Washington law.

3.3   Purchase Order Cancellation.   BIOCHEM, on notice to CTI, may cancel any
- ---------------------------------
or all outstanding purchase orders covering a period beyond the first three
months of its rolling annual forecast.

                                     - 6 -

<PAGE>
 
3.4   Governing Terms.   All sales hereunder shall be subject to the provisions
- ---------------------
hereof (including the Specifications) and shall not be subject to the terms and
conditions contained on any purchase order of BIOCHEM or confirmation of CTI,
except insofar as any such purchase order or confirmation establishes: (i) the
quantity of any Licensed Products or Combination Products ordered; (ii) the
shipment date; (iii) the shipment routes; or (iv) the carrier.

3.5   Taxes.   BIOCHEM shall bear all applicable governmental taxes (such as
- -----------
sale, use or similar taxes), except: (i) any tax on its profits (such as an
income tax or business and occupations tax) that CTI may be required to pay or
collect as a result of this Supply Agreement; (ii) personal property taxes
assessable on Licensed Products supplied hereunder before title thereto has
passed; and (iii) any taxes or charges required by law to be withheld from
payments made to CTI.

3.6   Prohibition on Resale.   BIOCHEM shall use Licensed Products and
- ---------------------------
Combination Products supplied hereunder solely within the scope of the license
granted in the Collaboration Agreement.

3.7   Compliance With Law.   Except as otherwise expressly provided herein or in
- -------------------------
the Collaboration Agreement, BIOCHEM shall be responsible, at its expense, for
complying with all applicable regulatory requirements relating to the import,
use, marketing or sale of Licensed Products and Combination Products supplied
hereunder in the Territory and CTI shall provide BIOCHEM with its reasonable
assistance in this regard. CTI shall be responsible, at its expense, for
complying with all applicable U.S. laws and regulatory requirements for its
manufacture and supply of the Licensed Products and Combination Products.

                                     - 7 -

<PAGE>
 
3.8   No Implied Representations, Warranties or Conditions.   In addition to the
- ----------------------------------------------------------
representations and warranties set forth in the Collaboration Agreement, CTI
warrants that Licensed Products and Combination Products supplied hereunder
shall meet the Specifications, and shall be merchantable and free from defects
and that CTI shall comply with all U.S. laws and regulations (including CGMP
regulations of the FDA) in the manufacture and supply of products. EXCEPT AS
OTHERWISE EXPRESSLY PROVIDED HEREIN OR IN THE COLLABORATION AGREEMENT, CTI MAKES
NO REPRESENTATIONS OR WARRANTIES AND THERE ARE NO CONDITIONS, EXPRESS OR
IMPLIED, STATUTORY OR OTHERWISE, WITH RESPECT TO ANY PRODUCT SUPPLIED HEREUNDER.

3.9   Inspections: Quality Assurance Rights and Obligations.
- -----------------------------------------------------------
(a)   BIOCHEM shall have the right to send authorized representatives to
manufacturing facilities where Licensed Products or Combination Products are
manufactured during each production run of product to audit any manufacturing
and testing operations that BIOCHEM deems reasonably appropriate to confirm that
production of each batch of product is in compliance with current good
manufacturing practice regulations set forth in 21 Code of Federal Regulations
Part 211, as the same may be amended from time to time ("CGMP Regulations"), and
at any other time upon reasonable notice to CTI. Upon request, CTI agrees to
notify BIOCHEM of the next production run of product. CTI agrees to cooperate
with BIOCHEM's authorized representatives conducting such audits.

(b)   BIOCHEM, at its expense, shall have the right to assay samples and to
perform such microbiological tests as BIOCHEM deems necessary on samples from
any production run of product produced for BIOCHEM hereunder and CTI shall
furnish such samples and other testing materials as BIOCHEM may reasonably
request for such purpose.

                                     - 8 -

<PAGE>
 
(c)   For each batch of product produced for BIOCHEM hereunder, CTI shall
furnish to BIOCHEM on or before the date of each shipment, along with any
testing samples that may be requested by BIOCHEM for assay and microbiological
testing purposes pursuant to subsection (b) above, a certificate that the batch
of Licensed Products and Combination Products, as applicable, of which the
submitted samples are representative, was manufactured, tested, and delivered in
full compliance with all applicable laws and regulation, including CGMP
Regulations and a copy of CTI's certificate of analysis that all product
included in such shipment comply in all respects with the applicable
Specification.

(d)   Copies of CTI's batch records as required to be maintained by FDA
regulations and guidelines, including quality assurance data, pertaining to
Licensed Product or Combination Product (as required by FDA regulations and
guidelines), as applicable, shall be furnished to BIOCHEM at the time of
shipment.

(e)   Notwithstanding anything herein to the contrary, any failure on the part
of BIOCHEM to discover any non-conformance, either during the production process
or upon inspection of shipments shall not relieve CTI of its warranties
hereunder or under the Collaboration Agreement.

3.10  HPB Inspections.   CTI agrees that if required to obtain registration of,
- ---------------------
or HPB authorization to test, product in the Territory, CTI will permit or
obtain permission for officials of the HPB to inspect the facilities where
Licensed Products or Combination Products are manufactured and will take such
action as such authorities may require.

3.11  Access to Books and Records.   Upon written request, BIOCHEM shall have
- ---------------------------------
the right to appoint a Certified Public Accountant selected by CTI and
acceptable to BIOCHEM, who shall, at BIOCHEM's expense, have access, during
reasonable business hours, at CTI's

                                     - 9 -

<PAGE>
 
place of business and not more often than once each calendar year, to such of
CTI's books, records, and reports as are necessary to verify the correctness of
any statements or reports to be supplied in respect of the purchase price
payable by BIOCHEM to CTI under this Agreement in respect of any calendar year
ending not more than sixty (60) months prior to the date of such request.

3.12  Product Handling and Distribution.   BIOCHEM shall identify Licensed
- ---------------------------------------
Products sold or otherwise distributed by it with a vendor lot number that is
traceable to the specific shipment purchased from CTI hereunder. BIOCHEM shall
permit CTI to review periodically BIOCHEM' 5 product handling and distribution
procedures and records, and to visit BIOCHEM's facilities at reasonable times
with a representative of BIOCHEM present in order to assure compliance with the
requirements of this Section 3.12.


                                  ARTICLE IV

                               TERM; TERMINATION

4.1   Term.   The term of this Supply Agreement shall commence on the date first
- ----------
above written. Unless sooner terminated pursuant to Section 4.2, or unless the
license for the specific Licensed Product or Combination Product is terminated
earlier pursuant to the Collaboration Agreement, this Supply Agreement shall
terminate, on a Licensed Product-by-Licensed Product and Combination Product-by-
Combination Product basis, 20 years following the termination or expiration of
the Term with respect to each such product under the Collaboration Agreement.

4.2   Termination.   (a) Failure by a Party to comply with any of the material
- -----------------
obligations contained herein shall entitle the Party not in default to give to
the Party in default notice specifying the nature of the default and requiring
it to make good such default. If such default is not cured within sixty (60)
days after the receipt of such notice, or diligent steps taken to cure if by

                                     - 10 -

<PAGE>
 
its nature such default could not be cured in sixty (60) days, the Party not in
default shall be entitled, without prejudice to any of its other rights
conferred on it by this Agreement, and in addition to any other remedies
available to it by law or in equity, to terminate shall be stayed if, during
such sixty (60) day period, the Party alleged to have been in default shall:

(i)   have initiated arbitration in accordance with Section 10.12 of the
Collaboration Agreement, with respect to the alleged default; and

(ii)  be diligently and in good faith cooperating in the prompt resolution of
such arbitration proceedings.

(b)   The right of a Party to terminate this Agreement shall not be affected in
any way by its waiver or failure to take action with respect to any prior
default.

4.3   Effect of Termination.   Termination of this Supply Agreement shall not
- ---------------------------
relieve CTI from its obligation to deliver all Licensed Products and Combination
Products ordered by binding purchase orders covering the first three months of
the rolling forecast received and accepted by CTI prior to the effective date of
such expiration or termination, unless termination is effected by CTI pursuant
to Section 4.2, nor shall expiration or termination relieve BIOCHEM from
accepting and, upon delivery, paying for any such products unless termination is
effected by BIOCHEM pursuant to Section 4.2. Termination shall not limit
BIOCHEM's right to sell products in its possession or delivered to it and
accepted by BIOCHEM in accordance with the terms of this Agreement after
expiration or termination pursuant to the provisions of the Collaboration
Agreement.

                                     - 11 -

<PAGE>
 
4.4   Other Remedies.   Nothing in this Supply Agreement shall be construed as
- --------------------
limiting the rights and remedies otherwise available to the parties, whether at
law or equity.


                                   ARTICLE V

                              GENERAL PROVISIONS

5.1   Notices.   All notices and demands required or permitted to be given or
- -------------
made pursuant to this Supply Agreement shall be in writing and given as
specified in the Collaboration Agreement.


5.2   Assignment.   The rights and obligations of a party hereunder may be
- ----------------
assigned only upon the prior written consent of the other party, which consent
may be withheld by the latter in its sole discretion; provided, however, that
BIOCHEM may assign its rights to take supply hereunder to any Affiliate, on the
condition that: (a) such Affiliate agrees to be bound by the terms and
conditions of this Supply Agreement; (b) CTI receives notice from BIOCHEM of its
intent to assign at least 30 days prior to the effective date of such
assignment; and (c) BIOCHEM guarantees to CTI performance by such affiliate of
its obligations hereunder.

5.3   Governing Law.   This Supply Agreement shall be governed by the laws of
- -------------------
the State of Washington, U.S.A., without reference to conflicts of laws
principles.

5.4   Time.   Time is of the essence in this Supply Agreement.
- ----------

5.5   Independent Contractors.   Nothing in this Supply Agreement is intended or
- -----------------------------
shall be deemed to constitute a partnership, agency, employer-employee or joint
venture relationship between the Parties. All activities by the parties
hereunder shall be performed by them as independent contractors. Neither party
shall incur any debts or make any commitments for the other party, except t& the
extent, if at all, specifically provided herein.

                                     - 12 -

<PAGE>
 
5.6   No Waiver.   Failure of a party to insist upon strict observance of or
- ---------------
compliance with any of the terms of this Supply Agreement in one or more
instances shall not be deemed to be a waiver of its rights to insist upon such
observance or compliance with the other terms hereof, at that point in time or
in the future.

5.7   Dispute Resolution.   Any dispute or claim arising out of, or in
- ------------------------
connection with, this Supply Agreement or with regard to the performance of any
obligation hereunder by either party shall be resolved by reference to the
dispute resolution procedures set forth in the Collaboration Agreement.

IN WITNESS WHEREOF, the parties have executed this Supply Agreement effective on
the date first set forth above.


CELL THERAPEUTICS, INC.


   /s/ James Bianco
- ----------------------
By:    James Bianco
Title: President


BIOCHEM THERAPEUTIC INC.

   /s/ Michael Grey
- ------------------------
By:    Michael Grey
Title: President


   /s/ Mario Thomas
- ----------------------------
By:    Dr. Mario Thomas
Title: Vice-President, 
       Business Development

                                     - 13 -



<PAGE>
 
                                                                   EXHIBIT 10.26

X
X
X

Re:  Consulting Agreement with Cell Therapeutics, Inc.
     -------------------------------------------------

Dear :

We understand that you are willing to continue your consulting relationship with
Cell Therapeutics, Inc. ("CTI").  We are pleased that your expertise will remain
available to help us meet our research and development goals.  Although we
intend that your consultantship may cover a broad subject matter range, your
primary responsibilities will include those related to your role as a Scientific
Advisory Board ("SAB") Member, as defined in further detail below.

Your consultantship with us shall be on the following terms:

1.   This agreement shall be effective as of the date of your acceptance hereof
and shall terminate [number, (#)] years after the date of your acceptance.  This
agreement may be terminated at any time by you or by CTI upon thirty (30) days
advance written notice to the other.

2.   Your position shall be that of an independent contractor and not an
employee or agent of CTI.

3.   In consideration of your consulting services rendered to CTI (as specified
below), you shall be paid at a rate of [amount] dollars ($number) per eight-hour
day.  In this regard, CTI shall only make payment at this rate upon its receipt
of a monthly invoice provided by you, detailing
 the time spent on the respective
project, the date(s) on which the consulting work was performed and the nature
of the effort conducted on behalf of CTI.

In further consideration for your consulting services, CTI shall grant to you an
option to acquire [number] shares (number) of CTI Common Stock ("option") upon
your indicating acceptance of the terms below.  The option shall incrementally
vest each year of the agreement term, according to the following schedule:

<PAGE>
 
Page 2

- ------------


[number] shares      -      1 year from date of acceptance

[number] shares      -      2 years from date of acceptance

- ---------------      

[number] shares      -      Total


The option shall be contingent upon approval by the Board of Directors; shall be
exercisable at a price equal to the fair market value of CTI Common Stock on the
Grant Date (your acceptance date); and is otherwise subject to the terms and
conditions of CTI's 1994 Equity Incentive Plan and the Company's Non-Qualified
Stock Option Agreement which we will timely send to you upon the Board's
approval, and which you must execute as a condition of the grant of such option.

When your consulting services will involve travel outside of the [metropolitan
location] area, CTI shall make appropriate arrangements for reimbursing
reasonable travel expenses that you incur.

4.   Although CTI shall not specifically restrict the subject matter upon which
you consult, your services will primarily be rendered in connection with your
role as a SAB Member.  Specifically, we expect that you will work with CTI to:

     -  attend periodic SAB meetings as requested by CTI management and/or the
        SAB Chair, Michael Hanley, MD;

     -  provide your expertise as a member of SAB sub-groups, established to
        address specific issues or concerns identified from time to time;

     -  assist in identifying and evaluating third party opportunities
        (including research and development) in related technologies, subject
        to paragraph 5(a) below;

     -  critically evaluate CTI's research and development programs;

     -  advise CTI scientists in research strategy and direction;

     -  assist CTI scientists with investigating and understanding mechanisms of
        action; and

     -  review progress of CTI's specific projects and research and development
        efforts with management.

CTI employees or agents may consult with you individually, by telephone or
facsimile or provide documents for your review and analysis.

<PAGE>
 
Page 3

- ------------


You will be engaged by CTI as a consultant for the exchange of ideas only and
shall not direct or conduct research for or on behalf of CTI.

5.   You shall not disclose to others or utilize for your own research, without
CTI's written consent, any unpublished information concerning CTI's scientific
or business interests, including any proprietary cell signaling technology, with
which you become familiar in your contacts with us.  Similarly, you shall not:
1) disclose to others the results of any specific nature of your consulting work
for CTI; 2) use any unpublished or proprietary information provided to you by
CTI for purposes other than providing consulting services to CTI; or 3) accept
consulting or employment from a for-profit entity involved with therapeutics
that are second messenger, signaling pathway agonists or antagonists.  Your
obligations under this paragraph shall continue beyond termination of this
agreement insofar as they relate to your activities under this agreement prior
to its termination.

6.   If in connection with your consultantship, you contribute as an inventor
(as determined by applicable laws regarding inventorship) to any invention for
CTI, you shall assign your right, title and interest in the invention, domestic
or foreign, to CTI, signing all papers, executing all oaths, and doing
everything necessary and proper to assign to CTI domestic and foreign rights to
said inventions.

     CTI will compensate you for any expense you incur in assigning, obtaining,
maintaining, and enforcing any patent covering any invention for which you are a
named inventor, as set forth above.  CTI will also reasonably and fairly
compensate you for time which you may spend subsequent to the termination of
this agreement in securing or enforcing CTI's rights in the invention.  These
obligations shall continue beyond the term of this agreement.

It is our understanding that you have no pre-existing obligations which are
inconsistent with your acceptance of the foregoing terms or which would preclude
your complete performance under the above terms.  If our understanding is
correct and if you accept the foregoing terms, please so indicate by signing,
dating, and returning to us the enclosed duplicate counterpart original of this
letter.

We look forward to your continued association with us.

Sincerely,

CELL THERAPEUTICS, INC.



Authorized Official

Accepted and Agreed to this ____ day of ____________, 199_.

 
___________________________________     ___________________
  [name of individual consultant]       Tax ID No.



<PAGE>
 
                                                                   EXHIBIT 10.27



X
X
X

Re:  Consulting Agreement with Cell Therapeutics, Inc.
     -------------------------------------------------

Dear :

We understand that you are willing to continue your consulting relationship with
Cell Therapeutics, Inc. ("CTI").  We are pleased that your expertise will remain
available to help us meet our research and development goals.  Although we
intend that your consultantship may cover a broad subject matter range, your
primary responsibilities will include those related to your role as a Clinical
Advisory Board ("CAB") Member, as defined in further detail below.

Your consultantship with us shall be on the following terms:

1.   This agreement shall be effective as of the date of your acceptance hereof
and shall terminate [number, (#)] years after the date of your acceptance.  This
agreement may be terminated at any time by you or by CTI upon thirty (30) days
advance written notice to the other.

2.   Your position shall be that of an independent contractor and not an
employee or agent of CTI.

3.   In consideration of your consulting services rendered to CTI (as specified
below), you shall be paid at a rate of [amount] dollars ($number) per eight-hour
day.  In this regard, CTI shall only make payment at this rate upon its receipt
of a monthly invoice provided by you, detailing
 the time spent on the respective
project, the date(s) on which the consulting work was performed and the nature
of the effort conducted on behalf of CTI.

In further consideration for your consulting services, CTI shall grant to you an
option to acquire [number] shares (number) of CTI Common Stock ("option") upon
your indicating acceptance of the terms below.  The option shall incrementally
vest each year of the agreement term, according to the following schedule:

<PAGE>
 
Page 2

- ------------


[number] shares      -     1 year from date of acceptance

[number] shares      -     2 years from date of acceptance

- ---------------

[number] shares      -     Total


The option shall be contingent upon approval by the Board of Directors; shall be
exercisable at a price equal to the fair market value of CTI Common Stock on the
Grant Date (your acceptance date); and is otherwise subject to the terms and
conditions of CTI's 1994 Equity Incentive Plan and the Company's Non-Qualified
Stock Option Agreement which we will timely send to you upon the Board's
approval, and which you must execute as a condition of the grant of such option.

When your consulting services will involve travel outside of the [metropolitan
location] area, CTI shall make appropriate arrangements for reimbursing
reasonable travel expenses that you incur.

4.   Although CTI shall not specifically restrict the subject matter upon which
you consult, your services will primarily be rendered in connection with your
role as a CAB Member.  Specifically, we expect that you will work with CTI to:

     -  attend periodic CAB meetings as requested by CTI management and/or the
        CAB Chair, E. Donnall Thomas, MD;

     -  provide your expertise as a member of CAB sub-groups, established to
        address specific issues or concerns identified from time to time;

     -  critically evaluate CTI's clinical development programs;

     -  advise CTI Medical Affairs personnel in clinical program strategy,
        direction and design; and

     -  review progress of CTI's clinical development studies and projects with
        CTI management.

CTI employees or agents may consult with you individually, by telephone or
facsimile or provide documents for your review and analysis.

<PAGE>
 
Page 3

- ------------


5.   You shall not disclose to others or utilize for your own research, without
CTI's written consent, any unpublished information concerning CTI's scientific
or business interests, including any proprietary cell signaling technology, with
which you become familiar in your contacts with us.  Similarly, you shall not:
1) disclose to others the results of any specific nature of your consulting work
for CTI; 2) use any unpublished or proprietary information provided to you by
CTI for purposes other than providing consulting services to CTI; or 3) accept
consulting or employment from a for-profit entity involved with therapeutics
that are second messenger, signaling pathway agonists or antagonists.  Your
obligations under this paragraph shall continue beyond termination of this
agreement insofar as they relate to your activities under this agreement prior
to its termination.

6.   If in connection with your consultantship, you contribute as an inventor
(as determined by applicable laws regarding inventorship) to any invention for
CTI, you shall assign your right, title and interest in the invention, domestic
or foreign, to CTI, signing all papers, executing all oaths, and doing
everything necessary and proper to assign to CTI domestic and foreign rights to
said inventions.

     CTI will compensate you for any expense you incur in assigning, obtaining,
maintaining, and enforcing any patent covering any invention for which you are a
named inventor, as set forth above.  CTI will also reasonably and fairly
compensate you for time which you may spend subsequent to the termination of
this agreement in securing or enforcing CTI's rights in the invention.  These
obligations shall continue beyond the term of this agreement.

It is our understanding that you have no pre-existing obligations which are
inconsistent with your acceptance of the foregoing terms or which would preclude
your complete performance under the above terms.  If our understanding is
correct and if you accept the foregoing terms, please so indicate by signing,
dating, and returning to us the enclosed duplicate counterpart original of this
letter.

We look forward to your continued association with us.

Sincerely,

CELL THERAPEUTICS, INC.




Authorized Official


Accepted and Agreed to this ____ day of __________, 199_.


___________________________________     ________________ 
  [name of individual consultant]       Tax ID No.



<PAGE>
 
                                                                    EXHIBIT 11.1
 
                            CELL THERAPEUTICS, INC.
                         (A DEVELOPMENT STAGE COMPANY)
                       COMPUTATION OF NET LOSS PER SHARE
 

<TABLE>
<CAPTION>
                                                                     THREE MONTHS ENDED
                                YEAR ENDED DECEMBER 31,                   MARCH 31,
                         ----------------------------------------  ------------------------
                             1993          1994          1995         1995         1996
                         ------------  ------------  ------------  -----------  -----------
<S>                      <C>           <C>           <C>           <C>          <C>
NET LOSS................ $(15,328,143) $(19,499,283) $(19,992,475) $(4,641,260) $(2,194,412)
                         ============  ============  ============  ===========  ===========
WEIGHTED AVERAGE COMMON 
 SHARES OUTSTANDING.....   15,331,876    16,507,395    16,699,364   16,520,277   17,268,103
NET LOSS PER SHARE...... $      (1.00) $      (1.18) $      (1.20) $     (0.28) $     (0.13)
                         ============  ============  ============  ===========  ===========
</TABLE>