1
         Portions of this Exhibit 10.3 have been redacted and are the subject of
a confidential treatment request filed with the Secretary of the Securities and
Exchange Commission.
   2
                  RESEARCH COLLABORATION AND LICENSE AGREEMENT


                  This RESEARCH COLLABORATION AND LICENSE AGREEMENT, dated as of
April 1st 1998, is entered by and between FUJIREBIO, INC., a company duly
organized and existing under the laws of Japan with its principal place of
business at 2-62-5, Nihonbashi, Hamacho, Chuo-ku, Tokyo 103, Japan ("FRI"), and
ONCOGENE SCIENCE DIAGNOSTICS, INC., a company duly organized and existing under
the laws of Delaware with its principal place of business at 80 Rogers Street,
Cambridge, Massachusetts 02142 ("OSD") and OSI PHARMACEUTICALS INC., a company
duly organized and existing under the laws of Delaware with its principal place
of business at 106 Charles Lindbergh Boulevard, Uniondale, NY 11553-3649
("OSIP", together with OSD, collectively "OSI".)

                  WHEREAS, OSI was organized to develop, produce and market
diagnostic products for, among other things, the early detection, monitoring and
treatment of human disease, particularly cancer;

                  WHEREAS, OSD is a wholly owned subsidiary (and a former
division) of OSIP engaged principally in the development of novel cancer
diagnostic assays;

                  WHEREAS, FRI has the capability to develop, format,
manufacture, attain regulatory approvals for, market and distribute diagnostic
products and instrumentation systems in Japan;

                  WHEREAS, FRI desires to commercialize certain of OSI's
proprietary cancer assays for use in connection with the Clinical Diagnostic
Product (as defined herein) for sales and marketing in Japan;

                  WHEREAS, FRI wishes to provide funding in support of OSI's
research and further development of certain proprietary cancer assays; and

                  WHEREAS, OSI and FRI understand that, pursuant to OSI's
research and development agreement with Bayer Corporation ("Bayer"), OSI shall
collaborate with Bayer in the research and further development of such
proprietary cancer assays.

                  NOW, THEREFORE, in consideration of the premises and promises
contained herein, the parties agree as follows:

1.       Definitions

         Whenever used in this Agreement, the terms defined in this Section 1
shall have the meanings specified.

         1.1.     "Affiliates" of a party means any corporation, partnership or
                  other entity directly or indirectly owned by, owning, or under
                  common ownership with such party of 
   3
                  at least fifty percent (50%) of its stock and having the power
                  to vote for the election of directors, such corporation,
                  partnership or other entity to be deemed an Affiliate only so
                  long as such ownership of voting stock continues.

         1.2.     "Clinical Diagnostic Product" means any version, successor or
                  application of FRI's Lumipulse system now in existence or
                  hereafter devised, which is sold to medical centers, reference
                  laboratories, cancer centers, clinicians, pathologists,
                  oncologists and others that typically utilize diagnostic kits
                  and automated systems to provide clinical information to
                  assist in the diagnosis, prognosis, monitoring or screening of
                  cancer or potential cancer patients.

         1.3.     "FRI Technology" means all Technology that was:

                  (a)      developed by employees of, or consultants to, FRI
                           alone or jointly with Third Persons on or prior to
                           the Effective Date.

                  (b)      acquired by purchase, license, assignment or other
                           means from Third Persons by FRI on or prior to the
                           Effective Date.

                  FRI Technology shall be owned by FRI.

         1.4.     "Licensed Product" means any Clinical Diagnostic Product that
                  incorporates the Proprietary Assays and/or that employs OSI
                  Technology in its manufacture, use or sale.

         1.5.     "Net Sales" means the gross amount received by FRI for arm's
                  lengths sales to a Third Person of Licensed Products,
                  respectively, after deducting, where applicable the following:

                  (a)      normal and customary trade discounts actually allowed
                           and taken;

                  (b)      returns and credits;

                  (c)      taxes (the legal incidence of which is on the
                           purchaser and separately shown on the shipping
                           invoice); and,

                  (d)      transportation, insurance and postage charges (if
                           prepaid and invoiced as a separate item).

         1.6.     "OSI Patent Rights" means all Patent Rights comprised in OSI
                  Technology. OSI Patent Rights shall be owned by OSI subject to
                  the rights granted to FRI under this Agreement and shall
                  include the ones attached hereto as Exhibit C.

         1.7.     "OSI Product" means ELISA kits for certain cancer markers
                  developed and manufactured by OSI and listed in Exhibit B.

                                      -2-
   4
         1.8.     "OSI Technology" means all Technology relating to the
                  Proprietary Assays used in connection with the development of
                  a Clinical Diagnostic Product that was:

                  (a)      developed by employees of, or consultants to, OSI
                           alone or jointly with third persons (including Bayer)
                           on or prior to the Effective Date, which OSI
                           determines in its discretion to contribute to the
                           research program as outlined in the OSI/FRI Annual
                           Operating Plan; or

                  (b)      acquired by purchase, license, assignment or other
                           means from third persons (including Bayer) by OSI on
                           or prior to the Effective Date, which OSI determines
                           in its discretion to contribute to the research
                           program; or,

                  (c)      developed by employees of, or consultants to, OSI
                           alone or jointly with third persons (including Bayer)
                           on or after the Effective Date pursuant to, or in
                           connection with, the OSI/FRI Annual Operating Plan

                           OSI Technology shall be owned by OSI subject to the
                           rights granted to FRI under this Agreement.

         1.9.     "OSI/FRI Annual Operating Plan" means the written plan
                  describing the research to be carried out on the Proprietary
                  Assays for each Research Year excluding FRI's activity on the
                  development of Licensed Products.

         1.10.    "Patent Rights" means all patentable inventions, including all
                  applications for patents, whether domestic or foreign,
                  disclosing or claiming such inventions, all continuations,
                  continuations-in-part, divisions, renewals and patents of
                  addition thereof, all patents granted thereon, whether
                  domestic or foreign, and all reissued or reexamined patents
                  based thereon.

         1.11.    "Proprietary Assays" mean the nine (9) proprietary cancer
                  assays owned by OSI set forth in Exhibit A and
                  attached hereto.

         1.12.    "Research Year" means each twelve (12) month period outlined
                  in Exhibit A attached hereto.

         1.13.    "Technology" means Patent Rights and all know-how, trade
                  secrets and confidential technical information and material,
                  including, without limitation, all laboratory notebooks,
                  research plans, inventions, genes and gene fragments and other
                  sequences, cell lines, hybridomas, monoclonal and polyclonal
                  antibodies, proteins and protein fragments, assay methodology,
                  processes, materials and methods for production, formulae,
                  plans, specifications, characteristics, marketing surveys and
                  plans and business plans.

                                      -3-
   5
         1.14.    "Third Person" means a person other than OSI or FRI, or other
                  than any employee of, or consultant to OSI or FRI.

         1.15.    "Materials" mean antibodies, antigens, and other substances
                  relating to Proprietary Assays, which are in use of FRI for
                  the development and manufacturing of Licensed Products.

2.       Licenses.

         2.1.     License granted to FRI. During the term of this Agreement and
                  subject to the terms and conditions herein appearing, OSI
                  hereby grants to FRI a non-exclusive right and license under
                  the OSI Patents Rights and the OSI Technology to develop,
                  manufacture, and sell Licensed Products in Japan. FRI shall
                  use its best efforts to commercialize the Proprietary Assays
                  set forth in the OSI/FRI Annual Operating Plan and should FRI
                  fail to commercialize any such Proprietary Assay within the
                  five (5) years immediately following the effective date of the
                  OSI/FRI Annual Operating Plan in which such Proprietary Assay
                  appears, FRI shall forfeit to OSI all rights in and to such
                  Proprietary Assay licensed in this Section;

         2.2.     Up-front Payment. In consideration of the right granted
                  pursuant to Section 2.1 above, FRI shall pay to OSI a
                  non-refundable sum of ** on a date not later than fifteen (15)
                  days prior to June 15 in each applicable Research Year,
                  provided that the first such payment shall be paid on or
                  before May 30, 1998.

         2.3.     Royalties. FRI shall pay to OSI a royalty of ** percent ** of
                  Net Sales of any Licensed Product hereunder from the first
                  sale of a Licensed Product until the event with the later to
                  occur of (i) the date ten (10) years after the date of such
                  first sale or (ii) the expiration of the last to expire of any
                  OSI Patent Rights underlying any Licensed Product sold by FRI
                  hereunder.

         2.4.     Payment Dates. Within sixty (60) days following the close of
                  each calendar quarter (or any part in the first or last
                  calendar quarter) of this Agreement, FRI shall deliver to OSI
                  a true and accurate report, stating for each Licensed Product,
                  for said calendar quarter (a) Net Sales, (b) the royalties
                  payable thereon, and (c) the amount of any credit taken
                  against royalties payable pursuant hereto. Except as otherwise
                  provided, simultaneously with the delivery of each report, FRI
                  shall pay to OSI the amount, if any, due for the period of
                  such report.

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

**       This portion has been redacted pursuant to a request for confidential 
         treatment.


                                      -4-
   6
         2.5.     Accounting. All amounts payable hereunder shall be payable in
                  US Dollars (to OSD or OSIP as designated by notice to FRI);
                  provided, however, that if any payment of Net sales by FRI or
                  its Affiliates is received in Japanese yen, such amount shall
                  be converted into US dollars at the bank selling rate for
                  Japanese yen into US dollars on the last day of quarterly
                  reporting period (as outlined in Section 2.4), quoted by
                  authorized foreign exchange bank in Tokyo.

         2.6.     Records. During term of this Agreement, FRI shall keep
                  complete and accurate records of Net Sales in sufficient
                  detail to enable OSI to determine payments owed to it under
                  this Agreement for a period of three (3) years after such
                  payments are due. FRI shall permit an independent certified
                  public account, acceptable to FRI (a list of independent
                  public accountants selected by OSI and acceptable to FRI is
                  attached as Exhibit E hereto) and appointed by OSI and at
                  OSI's expense, to examine its books, ledgers and records
                  covering Net Sales during regular business hours for the
                  purpose of verifying, and only to the extent necessary to
                  verify, the amount of royalties due and payable but in no
                  event more than once per calendar year. The accountant shall
                  maintain all information received during such examination in
                  confidence, and shall report to OSI only with respect to the
                  accuracy of any report. Any report not examined within three
                  (3) years of its having been made shall be deemed true and
                  accurate. In the event the records examined reveal that FRI
                  has paid less than ninety-five percent (95%) of the amount due
                  to OSI, FRI shall pay the costs of the audit and shall pay the
                  additional amount due plus accrued interest at the rate of ten
                  percent (10%) per annum.

         2.7.     Tax. In the event that withholding taxes or other similar
                  taxes be levied by any taxing authority in connection with
                  accrual or payment to OSI pursuant to this Article 2, FRI
                  shall pay such taxes to the local authorities on behalf of
                  OSI, and the payment to OSI of the net amount due after
                  reduction by the amount of such taxes shall fully satisfy OSI'
                  obligations under this Agreement.

         2.8.     Option. OSI hereby agrees to negotiate with FRI or its
                  Affiliates in respect of a non-exclusive right to market and
                  commercialize OSI Products in Japan without additional upfront
                  payments. The term for the marketing agreement shall be
                  negotiated and agreed separately between parties.

         2.9.     Patentable Technology. In the event that FRI develops any
                  patentable Technology based upon OSI Technology for the
                  Proprietary Assays in connection with development of Licensed
                  Products, OSI agrees that FRI has the right to apply for
                  patents in any countries with its own name and at its expense.
                  FRI and OSI further agrees that FRI license a world-wide
                  non-exclusive right for such patents to OSI (with sublicensing
                  right) with the condition of royalty from OSI


                                      -5-
   7
                  and its sublicensees to FRI, at a pre-agree royalty rate equal
                  to ** of net sales or in the event that OSI sublicensees such
                  rights, the lesser of ** and ** of the royalty rate received
                  by OSI from its sublicensee.

         2.10.    Supply of Materials.

                  (a)      For research and development efforts as well as for
                           FRI's commercialization of Proprietary Assays, OSI
                           shall supply the Materials to FRI at OSI's
                           manufacturing cost (including overhead cost directly
                           related to manufacturing, which overhead cost shall
                           include general and administrative charges
                           customarily and consistently applied by OSIP to OSD's
                           manufacturing) plus ** mark-up thereon.

                  (b)      OSI and FRI hereby agree to negotiate and execute in
                           good faith a mutually satisfactory supply agreement
                           of Materials for FRI's manufacturing of Licensed
                           Product based on the above condition. OSI shall
                           represents and warrants to FRI that all of Materials
                           delivered pursuant to this Agreement or supply
                           agreement, shall confirm to the specifications to be
                           agreed in the supply agreement between OSI and FRI in
                           accordance with applicable regulatory requirements.

                  (c)      OSI shall use its commercially reasonable efforts to
                           supply for the Materials to FRI during the term of
                           this Agreement in accordance with the terms of the
                           supply agreement to be negotiated by the parties.

                  (d)      OSI agrees to defend, protect, indemnify, and hold
                           harmless FRI from and against any liability, claim,
                           loss, cost or expense arising from any claim for
                           product liability based on OSI's quality of the
                           Materials to be used in the Licensed Product except
                           to the extent such liability, claim, loss or expense
                           also results from the negligence or willful
                           misconduct of FRI, its employees and agents.

3.       Collaborative Research

         3.1.     Research Projects. FRI and OSI hereby agree, subject to the
                  terms and conditions of this Agreement, to undertake four (4)
                  collaborative research projects stated in Exhibit A attached
                  hereto in respect of the Proprietary Assays for four Research
                  Years as set forth in four (4) OSI/FRI Annual Operating Plans.
                  OSI shall provide technical information related to the
                  Proprietary Assays in accordance with agreed upon objectives
                  set forth in an OSI/FRI Annual Operating Plan.

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

**       This portion has been redacted pursuant to a request for confidential 
         treatment.


                                      -6-
   8
         3.2.     Research Funding. FRI shall pay to OSI a sum of** (** as last
                  payment) as the research funding fee on a date not later than
                  fifteen (15) days prior to June 15 in each applicable Research
                  Year, provided that the first such payment shall be paid on or
                  before May 30, 1998.

         3.3.     Termination of Research Projects by FRI. FRI may terminate
                  further collaborative research pursuant to the terms hereof
                  only (i) upon not less than twelve (12) months advance written
                  notice provided to OSI on or prior to the first day (June 15)
                  of any applicable Research Year (provided, however, that FRI
                  shall have no such termination right in respect of research to
                  be conducted in the second Research Year), and (ii) upon
                  payment of all sums due pursuant to Section 2.2 and 3.2 hereof
                  in respect of the upcoming Research Year (for example, FRI
                  must (i) provide notice on or before June 15, 1999 and (ii)
                  pay the ** , when due, in respect of the Second Research Year
                  (1999-2000) in order to terminate research to be conducted in
                  the Third Research Year(2000-2001)). In the event that FRI
                  terminate further collaborative research pursuant hereto, the
                  license to commercialize the Proprietary Assays granted to
                  FRI hereunder shall be limited to those assays listed in
                  Exhibit A attached hereto under Research Years in respect of
                  which FRI provided both an up-front fee and research funding
                  under Sections 2.2 and 3.2 hereof. Upon termination of further
                  collaborative research in accordance with the terms of further
                  collaborative research in accordance with the terms of this
                  Section 3.3, FRI shall not be required to make additional or
                  further payments to OSI pursuant to Sections 2.2 and 3.2
                  hereof.

         3.4.     CSI/FRI Annual Operating Plan. The OSI/FRI Annual Operating
                  Plan for the initial Research Year is set forth in Exhibit D
                  attached hereto. For each year after the initial Research
                  Year, the CSI/FRI Annual Operating Plan shall be prepared by
                  the Research Committee no later than ninety (90) days before
                  the end of the prior Research Year and approved by FRI and OSI
                  no later than thirty (30) days before the end of the prior
                  Research Year. The OSI/FRI Annual Operating Plan for each
                  Research Year shall be appended to and made part of this
                  Agreement.

         3.5.     Research Committee.

                  3.5.1.   Purpose.  The Research Committee shall:

                  (a)      Prepare the OSI/FRI Annual Operating Plan for each
                           year;

                  (b)      Review, evaluate progress under and modify the
                           OSI/FRI Annual Operating Plan for each year;
- ------------------

**       This portion has been redacted pursuant to a request for confidential 
         treatment.


                                      -7-
   9
                  (c)      With respect to each Licensed Product prior to
                           commercialization, whether (a) license(s) need(s) to
                           be obtained from a third person(s) in order to make,
                           use or sell such Licensed Product; and,

                  (d)      Determine priority of the Proprietary Assays to be
                           commercialized by FRI.

                  3.5.2.   Membership. FRI and OSI each shall appoint, in its
                           sole discretion, two (2) members to the Research
                           Committee. Substitutes may be appointed at any time
                           upon written notice .

                           The members initially shall be:

                  Appointees:

                  For FRI:                                    For OSI:
                    **                                          **

                  3.5.3.   Chairman. The Research Committee shall be chaired by
                           ** . Should the Chairman of the Research Committee
                           need to be changed for any reason, OSI shall
                           recommend a person with a comparable knowledge and
                           experience in the cancer diagnostic field as the
                           predecessor and shall obtain consent from FRI within
                           30 days before the change is planned to be
                           implemented, which such acceptance shall not be
                           unreasonably withheld.

                 3.5.4.    Meetings. The Research Committee shall meet at least
                           one time per calendar year at mutually agreeable
                           dates and places. Representatives of FRI may visit
                           OSI on an as needed basis to obtain technical help
                           with its commercialization of Proprietary Assays.

                 3.5.5.    Minutes. The Research Committee shall keep accurate
                           minutes which record all proposed decisions and all
                           actions recommended or taken. The minutes shall be
                           delivered to all Research Committee members within
                           ten (10) business days after each meeting. OSI shall
                           be responsible for the preparation of the minutes.

                  3.5.6.   Expenses. FRI and OSI shall each bear all expenses of
                           their respective members related to the participation
                           of the Research Committee.

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

**       This portion has been redacted pursuant to a request for confidential 
         treatment.



                                      -8-
   10
         3.6.     Reports.

                  OSI shall submit to FRI a report indicating the final results
                  for each of the research projects within thirty (30) days
                  after the end of each Research Year describing in detail the
                  work accomplished by it under the OSI/FRI Annual Operating
                  Plan. OSI further shall submit to FRI summary reports within
                  thirty (30) days after the end of each four-month period,
                  commencing with the period ending 15th of October, 1998,
                  describing its progress under the OSI/FRI Annual Operating
                  Plan.

         3.7.     Laboratory Facilities and Personnel. OSI shall provide
                  suitable laboratory facilities, equipment and personnel for
                  the work to be done in carrying out the OSI/FRI Annual
                  Operating Plan.

         3.8.     Diligent Efforts. FRI and OSI each shall use reasonably
                  diligent efforts to achieve the objectives of the OSI/FRI
                  Annual Operating Plan. Specifically, OSI and FRI shall use
                  diligent efforts to allocate those resources necessary (i.e.,
                  manpower, facilities, equipment) to meet the objectives of the
                  OSI/FRI Annual Operating Plan. FRI shall use its best efforts
                  to commercialize the Proprietary Assays.

         3.9.     Extension. OSI (in advance of the expiration of the last
                  Research Year hereunder) agrees to negotiate in good faith
                  with FRI, on a non-exclusive basis and subject to the prior
                  commitments of OSI, to extend the collaborative research
                  program, upon mutually agreeable terms and conditions, upon
                  nine (9) months' prior written notice from FRI to OSI of FRI's
                  intent to negotiate therefore. The foregoing commitment to
                  negotiate shall terminate sixty (60) days after the date on
                  which FRI provides to CSI of its intent to negotiate pursuant
                  to this Section 3.9.

         3.10.    For avoidance of doubt, OSI and FRI acknowledge and agree that
                  any result, data and technical knowledge resulting from the
                  collaborative research projects shall be included in OSI
                  Technology. If OSI applies for the patent under certain
                  technical knowledge resulting from the research projects in
                  any countries with its own name and at its own expense, OSI
                  agrees to add such patents or patent applications to OSI
                  Patent Rights in this Agreement upon the Research Committee's
                  conclusion .

         3.11.    Further Collaboration. During the period of Research Years,
                  OSI may disclose to FRI, subject to OSI's obligations to Third
                  Parson (including, but not limited to, confidentiality
                  obligations), information concerning technical progress made
                  by OSI in connection with new assay development. If, upon such
                  disclosure by OSI, FRI wishes to enter into a similar research
                  collaboration and license agreement in respect of such now
                  assays, OSI may propose to FRI the terms of such an agreement.

                                      -9-
   11
4.       Treatment of Confidential Matter.

         4.1.     Confidentiality.

                  During the term of this Agreement and for a period of five
                  years following the termination of this Agreement, each party
                  shall continue to keep all information disclosed to the other
                  pursuant hereto strictly confidential and neither party shall
                  disclose such information to any third party (including Bayer)
                  nor use such information for any purposes other than the
                  purpose specified herein. The confidentiality obligations of
                  this Agreement shall not apply to:

                  (a)      information and materials which at the time of
                           disclosure are in the public domain; or

                  (b)      information which after disclosure becomes part of
                           public domain by publication or otherwise, except by
                           breach of this Agreement; or

                  (c)      information which the receiving party can demonstrate
                           it independently developed prior to the disclosure;
                           or

                  (d)      information disclosed to the receiving party by a
                           third party who has the right to make such
                           disclosure.

         4.2.     Restrictions on Transferring Materials. FRI and OSI recognize
                  that the biological, chemical and biochemical materials which
                  are part of the OSI Technology and FRI Technology represent
                  valuable commercial assets. Accordingly, nothing containing
                  herein shall be construed to permit either party to transfer
                  to any third person (including Bayer) any such material which
                  constitutes Technology owned by the other party. Additionally,
                  subject to FRI's rights as set forth herein, throughout the
                  term hereof and thereafter, FRI agrees not to transfer to any
                  third person any biological, chemical or biochemical materials
                  which are part of OSI Technology and which comprise, consist
                  of or are useful in the manufacture of any Licensed Product or
                  OSI Product, unless prior consent for any such transfer is
                  obtained from OSI.

         4.3.     Notwithstanding Sections 4.1 and 4.2 above, OSI may disclose
                  the Technology not related to the Clinical Diagnostic Product
                  and /or a Licensed Product, (which do not include the FRI
                  Technology), to Bayer based on OSI's agreement with Bayer.

5.       Patent Infringement and Hold Harmless.

         5.1.     Actual or Threatened Infringement by Third Persons. If
                  information comes to the attention of FRI or OSI to the effect
                  that any OSI Patent Rights relating to a Licensed Product have
                  been or are threatened or infringed, OSI shall have 



                                      -10-
   12
                  the right, at its expense, to take such action as it may deem
                  necessary to prosecute or prevent such infringement, including
                  the right to bring or defend any suit, action or proceeding
                  involving any such infringement. FRI or OSI shall notify the
                  other promptly of the receipt of any such information and OSI
                  shall notify FRI promptly of its commencement of any such
                  suit, action or proceeding. If OSI determines, and FRI agrees
                  that it is necessary or desirable for FRI to join any such
                  suit, action or proceeding, FRI shall execute all papers and
                  perform such other acts as may be reasonably required to
                  permit OSI to act in FRI's name, In the event that OSI brings
                  a suit, it shall be entitled to all sums recovered in such
                  suit or in its settlement. FRI always have the right to be
                  represented by counsel of its own selection and at its own
                  expense in any suit instituted by OSI for infringement, under
                  the terms of this Section. If OSI lacks standing to bring any
                  such suit, action or proceeding, then FRI shall have a right
                  to do so at the request of OSI and, with respect to expenses
                  approved in advance by OSI, at OSI's expense.

         5.2.     Infringement Claims Against the Parties. OSI hereby warrants
                  that the use of OSI Patent Rights or OSI Technology in the
                  manufacture, use or sale of a Licensed Product by FRI in Japan
                  will not constitute any infringement of any patent owned by
                  any third party. If FRI or OSI is sued by a Third Party for
                  infringement of a patent based upon the research, development,
                  manufacture, sale or use of a Licensed Product, the party sued
                  shall notify the other promptly of the commencement of any
                  such suit.

                  (a)      If the alleged infringement is due to the use of OSI
                           Technology or OSI Patent Rights, FRI shall give OSI
                           all authority (including the right to exclusive
                           control of the defense of any such suit, action or
                           proceeding and the exclusive right to compromise,
                           litigate, settle, or otherwise dispose of any such
                           suit, action or proceeding), information and
                           assistance necessary to defend or settle any such
                           suit, action or proceeding OSI shall bear all of the
                           expenses incurred in connection with such suit,
                           action or proceeding, and OSI shall indemnify and
                           hold FRI harmless from and against all liabilities,
                           losses, expenses (including reasonable legal
                           expenses) and damages arising from such patent
                           infringement.

                  (b)      If the alleged infringement is due to the use of FRI
                           Technology, OSI shall give FRI all authority
                           (including the right to exclusive control of the
                           defense of any such suit, action or proceeding and
                           the exclusive right to compromise, litigate, settle,
                           or otherwise dispose of any such suit, action or
                           proceeding), information and assistance necessary to
                           defend or settle any such suit, action or proceeding,
                           FRI shall bear all of the expenses incurred in
                           connection with such suit, action or proceeding, and
                           FRI shall indemnify and hold OSI harmless from and
                           against liabilities, losses, expenses (including
                           reasonable legal expenses) and damages arising from
                           such patent infringement.

                                      -11-
   13
         5.3.     Hold Harmless for Product Liability. FRI agrees to defend,
                  protect, indemnify, and hold harmless OSI from and against any
                  liability, claim, loss, cost or expense arising from any claim
                  for product liability based upon FRI's manufacture, use, or
                  sale of any Licensed Product except to the extent such
                  liability, claim, loss or expense also results from the
                  negligence or willful misconduct of OSI, its employees and
                  agents.

6.       Term and Termination.

         6.1.     Term. Subject to Section 6.4 hereof, this Agreement shall come
                  into force on the date first above written and shall, unless
                  sooner terminated pursuant to any provision of this Agreement,
                  be in full force until the expiration date of the last
                  to-expire OSI Patent Rights in Japan or for a period of ten
                  (10) years counting from the date of the first commercial sale
                  by FRI of a Licensed Product, whichever is longer.

         6.2.     Event(s) of Termination. The following events shall constitute
                  Events of Termination under this agreement.

                  (a)      Any representation or warranty by FRI or OSI, or any
                           of their officers, under or in connection with this
                           Agreement shall prove to have been incorrect in any
                           material respect when made; or

                  (b)      FRI or OSI shall fail in any material respect to
                           perform or observe any term, covenant or
                           understanding contained in this Agreement (including
                           OSI's inability to perform the collaborative research
                           in accordance with the terms of the Agreement due to
                           the departure of Walter P. Carney, Ph.D. from OSI) or
                           in any of the other documents or instruments
                           delivered pursuant to, or concurrently with, this
                           Agreement, and any such failure shall remain
                           unremediated for thirty (30) days after FRI's or
                           OSI's written notice to the other thereof.

                  (c)      Either party hereto shall have become insolvent or
                           bankrupt, or shall have made an assignment for the
                           benefit of its creditors, or that there shall have
                           been an appointed trustee or receiver of the other
                           party hereto for all or a substantial part of its
                           property, or that any case or proceeding shall have
                           been commenced or other action taken by or against
                           the other party in bankruptcy or seeking
                           reorganization, liquidation, dissolution, winding-up,
                           arrangement, composition or readjustment of its debts
                           or any other relief under any bankruptcy, insolvency,
                           reorganization or other similar act or law of any
                           jurisdiction now or hereafter in effect, or that
                           there shall have been issued a warrant of attachment,
                           execution, distraint or similar process against any
                           substantial part of the property of the other party
                           hereto, and 


                                      -12-
   14
                           any such event shall have continued for sixty (60)
                           days undismissed, unbounded and undischarged.

         6.3.     Termination. Upon the occurrence of any of such Events of
                  Termination as specified in (a) through (c) of Section 6.2
                  hereof, FRI or OSI shall have the right, by written notice to
                  the other, to immediately terminate this Agreement. Upon any
                  such termination, OSI shall not be obligated to return to FRI
                  any amounts then previously paid to OSI hereunder. Upon any
                  such termination, the licenses granted to FRI hereunder shall
                  remain in effect only in respect of those Proprietary Assays
                  for which FRI has provided Research Funding pursuant to
                  Section 3.2 and only to the extent that FRI meets its
                  obligations to pay royalties in respect thereof throughout the
                  period specified in Section 6.1.

         6.4.     Survival. Without limitation, the rights and obligations
                  arising from the following provisions shall survive any
                  expiration or termination of this Agreement: Articles 1, 2,4,
                  5, 6, 7 and 9-12.

7.       Representations and Warranties. OSI and FRI each represent and warrant
         as follows:

         7.1.     It is a corporation duly organized, validly existing and in
                  good standing (if applicable) under the laws of the
                  jurisdiction of its incorporation. It is qualified to do
                  business and is in good standing (if applicable) as a foreign
                  corporation in each jurisdiction in which the conduct of its
                  business or the ownership of its properties requires such
                  qualification. It has all requisite power and authority,
                  corporate or otherwise, to conduct its business as now being
                  conducted, to own, lease and operate its properties and to
                  execute, deliver and perform this Agreement.

         7.2.     The execution, delivery and performance by it of this
                  Agreement has been fully authorized by all necessary corporate
                  action and does not and will not (a) require the consent or
                  approval of its stockholders, (b) violate any provision of any
                  law, rule, regulation, order, write, judgment, injunction,
                  decree, determination or award presently in effect having
                  applicability to it or any provision of its charter or by-laws
                  or (c) result in a breach of or constitute a default under any
                  material agreement, mortgage, lease, license, permit or other
                  instrument or obligation to which it is a party or by which it
                  or its properties may be bound or affected.

         7.3.     This Agreement is a legal, valid and binding obligation of it
                  enforceable against it in accordance with its terms and
                  conditions, except as such enforceability may be limited by
                  applicable bankruptcy, insolvency, moratorium, reorganization
                  or similar laws, from time to time in effect, affecting
                  creditors' rights generally.

         7.4.     It is not under any obligation to any person, contractual or
                  otherwise, that is conflicting or inconsistent in any respect
                  with the terms of this Agreement or that would impede the
                  diligent and complete fulfillment of its obligations
                  hereunder. 


                                      -13-
   15
                  OSI further represents and warrants to FRI that OSI's
                  relationship with Bayer does not prohibit OSI's diligent and
                  complete fulfillment of its obligations hereunder.

         7.5.     It has good and marketable title to or valid leases or
                  licenses for, all of its properties, rights and assets
                  necessary for the fulfillment of its responsibilities under
                  this Agreement, subject to no claim of any third person other
                  than the relevant lessors or licensers.

8.       Covenants of OSI and FRI. Throughout the term of the Agreement, each of
         OSI and FRI shall:

                  (a)      Maintain and preserve its corporate existence,
                           rights, franchises and privileges in the jurisdiction
                           of its incorporation, and qualify and remain
                           qualified as a foreign corporation in good standing
                           (if applicable) in each jurisdiction in which such
                           qualification is from time to time necessary or
                           desirable in view of its business and operations or
                           the ownership of its properties; and

                  (b)      Comply in all material respects with the requirements
                           of all applicable laws, rules, regulations and orders
                           of any government authority to the extent necessary
                           to conduct the OSI/FRI Annual Operating Plan.

9.       Dispute Resolution. Any disputes, controversies, or difficulties which
         may arise out of or in relation to this Agreement shall be settled
         amicably between the parties. In the event the parties fail to do so,
         such dispute, controversy or difficulty shall be finally settled by
         arbitration at the place of the defendant's principal place of business
         (as set forth herein) by the International Chamber of Commerce ("ICC")
         pursuant to the arbitration rules of the ICC and by arbitrators of be
         appointed according to said rules. The award in the said arbitration
         shall be final and binding, and may include the reasonable legal fees
         of the prevailing party.

10.      Notices. All notices shall be mailed via certified mail, return receipt
         requested, or courier, addressed as follows, or to such other address
         as may be designated from time to time:

         For FRI: To FRI at its address as set forth at
                  the beginning of this Agreement,
                  Attention:  CEO of Fujirebio Inc. (Koichiro FUJITA, M.D.)
                  with a copy to: Manager of Legal Department, Fujirebio Inc.

         For OSI: To OSD and OSIP at its address as set forth at
                  the beginning of this Agreement,
                  Attention(OSD):  Walter P. Carney, Ph.D., President
                  Attention(OSIP):  Robert L. Van Nostrand, CFO

                                      -14-
   16
Notices shall be deemed given as of the date of receipt.

11.      Governing Law. This Agreement shall be governed by and construed in
         accordance with the laws of the State of New York, without regard to
         its conflicts of laws principles.

12.      Miscellaneous.

         12.1.    Binding Effect. This Agreement shall be binding upon and inure
                  to the benefit of the parties and their respective legal
                  representatives, successors and permitted assigns.

         12.2.    Headings. Paragraph headings are inserted for convenience of
                  reference only and do not form part of this Agreement.

         12.3.    Counterparts. This Agreement may be executed simultaneously in
                  two or more counterparts, each of which shall be deemed an
                  original.

         12.4.    Amendment, Waiver, etc. This Agreement may be amended,
                  modified, superseded or canceled, and any of the terms may be
                  waived, only by a written instrument executed by each party
                  or, in the case of waiver, by the party or parties waving
                  compliance. The delay or failure of any party at any time or
                  times to require performance of any provision shall in no
                  manner affect the rights at a later time to enforce the same.

         12.5.    No Third Party Beneficiaries. No Person not a party to this
                  Agreement, including any employee of any party to this
                  Agreement, shall have or acquire any right s by reason of this
                  Agreement. Neither party shall enter in to or incur, or hold
                  itself out to third parties as having authority to enter into
                  or incur on behalf of the other party, any contractual
                  obligation, expense, or liability whatsoever. The performance
                  of each party hereunder is undertaken as an independent
                  contractor, and nothing contained in this Agreement shall be
                  deemed to constitute the parties partners with each other or
                  any Person.

         12.6.    Assignment and Successors. This Agreement may not be assigned
                  by either party, except that either party may assign this
                  Agreement and the rights and interests of such party to an
                  Affiliate, or a purchaser of substantially all of the assets
                  of such party's business to which this Agreement pertains,
                  upon notice to the other party.

         12.7.    Severability. If performance of this Agreement or any part
                  hereof by either party shall be rendered unenforceable or
                  impossible under, or in conflict with any law, regulation, or
                  official action by any government agency having jurisdiction
                  over such party, then such party shall not be considered in
                  default by reason of failure to perform and the validity of
                  all remaining provisions hereof shall not be affected by such
                  result.

                                      -15-
   17
         12.8.    Unforeseen Circumstances. Neither party shall be liable in
                  damages for, nor shall the Contract Period be terminated by
                  reason of, any delay or default in any such party's
                  performance hereunder if such default or delay is caused by
                  events beyond such party's reasonable control including,
                  without limitations, acts of God, regulation or law or other
                  action of any government or agency thereof, war or
                  insurrection, civil commotion, destruction of production
                  facilities or materials by earthquake, fire, flood or storm,
                  labor disturbances, epidemic, or failure of suppliers, public
                  utilities or common carriers. Each party agrees to endeavor to
                  resume its performance hereunder if such performance is
                  delayed or interrupted by reason of such forces majeure as
                  listed above.

         12.9.    Integration. This writing constitutes the entire agreement
                  between the parties relating to the subject matter hereof.
                  There are no understandings, representations, or warranties of
                  any kind except as expressly set forth herein.



                                      -16-
   18
         IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed by their duly authorized representatives.

                                   FUJIREBIO INC.


                                   By:      /s/   Koichiro FUJITA, M.D.
                                            --------------------------------
                                            Koichiro FUJITA, M.D.
                                            Title:  President and CEO



                                   ONCOGENE SCIENCE DIAGNOSTICS, INC.


                                   By:      /s/   Walter P. Carney, Ph.D.
                                            --------------------------------
                                            Walter P. Carney, Ph.D.
                                            Title:  President



                                    OSI PHARMACEUTICALS, INC.


                                    By:      /s/   Robert L. Van Nostrand
                                            --------------------------------
                                            Robert L. Van Nostrand
                                            Title: CFO


                                      -17-
   19
Exhibit A:    Proprietary Assays and Collaborative Research Projects

Research Year(Period)                          Proprietary Assays      Projects

1st Year:     15 JUN 1998 - 14 JUN 1999        **                        (i)

2nd Year:     15 JUN 1999 - 14 JUN 2000        **                        (ii)

3rd Year:     15 JUN 2000 - 14 JUN 2001        **                        (iii)

4th Year:     15 JUN 2001 - 14 JUN 2002        **                        (iv)


(Collaborative Research Projects)
(i)        **

(ii)       **

(iii)      **

(iv)       **



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

**       This portion has been redacted pursuant to a request for confidential 
         treatment.


                                      -18-
   20
Exhibit B:        OSI Products(ELISA format)

                                                                 OSD Product #

                           **                                    **



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

**       This portion has been redacted pursuant to a request for confidential 
         treatment.



                                      -19-
   21
Exhibit C:  OSI Patent Lists

           **
1          **

2.         **




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

**       This portion has been redacted pursuant to a request for confidential 
         treatment.



                                      -20-
   22
Exhibit D:        OSI/FRI Annual Operating Plan

   **




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

**       This portion has been redacted pursuant to a request for confidential 
         treatment.



                                      -21-
   23
Exhibit-E.        A list of independent public accountants

1.       KPMG Peat Marwick (in Japan)

         Address:

         Tel No.:

         Fax No:

         FRI will confirm to OSI that the above one is acceptable or not by the
         launch of Licensed Products, which such acceptance shall not be
         unreasonably withheld.



                                      -22-