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                                  EXHIBIT 10.14

ARIAD PHARMACEUTICALS, INC. HAS OMITTED FROM THIS EXHIBIT 10.14 PORTIONS OF THE
AGREEMENT FOR WHICH ARIAD PHARMACEUTICALS, INC. HAS REQUESTED CONFIDENTIAL
TREATMENT FROM THE SECURITIES AND EXCHANGE COMMISSION. THE PORTIONS OF THE
AGREEMENT FOR WHICH CONFIDENTIAL TREATMENT HAS BEEN REQUESTED ARE MARKED WITH AN
ASTERISK AND SUCH CONFIDENTIAL PORTIONS HAVE BEEN FILED SEPARATELY WITH THE
SECURITIES AND EXCHANGE COMMISSION.

                              AMENDED AND RESTATED

                                    AGREEMENT

Effective as of December 12, 1997, THE BOARD OF TRUSTEES OF THE LELAND STANFORD
JUNIOR UNIVERSITY, a body having corporate powers under the laws of the State of
California ("STANFORD") and ARIAD GENE THERAPEUTICS, a Delaware corporation
having a principal place of business at 26 Landsdowne Street, Cambridge, MA
02139 ("AGT"), agree as follows:

1.    BACKGROUND

      1.1.  STANFORD and the President and Fellows of Harvard College
            ("HARVARD") ("LICENSORS") have an assignment of those patent
            applications set forth on Exhibit A ("Invention(s)"), and any
            Licensed Patent(s), as hereinafter defined, which may issue to such
            Invention(s).

      1.2.  LICENSORS own certain proprietary materials and information as
            herein defined ("Technology") pertaining to the subject matter of
            the Licensed Patents.

      1.3.  STANFORD has entered into an agreement with HARVARD granting
            STANFORD authority to act on HARVARD's behalf and to bind HARVARD in
            licensing HARVARD's rights in Invention(s), Licensed


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            Patent(s) and Technology. A copy of that agreement between STANFORD
            and HARVARD is attached hereto as Exhibit B.

      1.4.  LICENSORS desire to have the subject matter of the Licensed
            Patent(s), Invention(s) and Technology perfected and marketed at the
            earliest possible time in order that products resulting therefrom
            may be available for public use and benefit.

      1.5.  LICENSORS granted AGT a license under said Invention(s), Technology
            and Licensed Patent(s) to develop, manufacture, use, and sell
            Licensed Product(s) in the fields of use of human and veterinary
            healthcare, genetically engineered animals and plants and research
            reagents under an Agreement effective as of January 1, 1994, which
            was amended on July 3, 1996 (collectively, the "License Agreement").

      1.6.  The parties hereto desire to further amend and restate the License
            Agreement.

      1.7.  The Invention(s) was made in the course of research conducted by the
            Howard Hughes Medical Institute ("HHMI") in affiliation with
            Stanford University and with research support from the National
            Institutes of Health at Harvard College.

2.    DEFINITIONS

      2.1.  "Licensed Patent(s)" means those United States Patent Applications
            and international patent applications set forth on Exhibit A; and/or
            any divisional, continuation, continuation-in-part, reissue,
            reexamination or foreign counterpart application which claim
            inventions disclosed in any of the foregoing applications; and any
            United States and/or foreign patent(s) and any extensions thereof,
            which may be granted upon, claim the priority of or claim inventions
            disclosed in any of the foregoing.

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      2.2.  "Technology" means LICENSORS' proprietary rights, if any, in
            tangible materials and information which pertain to the invention(s)
            disclosed in the Licensed Patents and/or Invention(s), which are
            conceived and/or reduced to practice as of the Effective Date, which
            arise out of the research by Drs. Schreiber and Crabtree, and which
            may be provided by Licensors to AGT, subject to sponsors' rights if
            any.

      2.3.  "Licensed Product(s)" means any product in the Licensed Field of
            Use, the manufacture, use, or sale of which would infringe a valid
            claim of an issued, unexpired Licensed Patent(s); is covered by a
            pending claim of a Licensed Patent for which there is a reasonable
            good faith expectation of issuance; and/or which embodies any of the
            Technology. A claim of issued, unexpired Licensed Patent(s) shall be
            presumed to be valid unless and until it has been held to be invalid
            by a final judgment of a patent office or court of competent
            jurisdiction.

      2.4.  "Net Sales" means the amount of gross revenue received by the Seller
            of the Licensed Product as a result of sales of Licensed Product(s)
            to independent third parties by AGT and/or sublicensees and/or
            Co-venturers, less the following items but only insofar as they
            actually pertain to the disposition of such Licensed Product(s) by
            AGT and/or sublicensee(s) and/or Co-venturers and are separately
            billed or accounted for:

            (a)   customary discounts and rebates actually allowed or granted
                  from the amount billed;

            (b)   credits or allowances granted upon claims or returns;

            (c)   packing, insurance and freight charges paid by AGT and/or
                  sublicensee(s) and/or Co-venturers;

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            (d)   import, export, sales, use, excise or other taxes, customs
                  duties, or other governmental charges levied on or measured by
                  the selling price and included in the billing price whether
                  absorbed by AGT and/or sublicensee(s) and/or Co-venturers or
                  their customers; and

            (e)   all royalties and other fees required for making, using, or
                  selling Licensed Product(s) which are paid to third parties by
                  AGT and/or sublicensee(s) and/or Co-venturers.

            Net Sales shall not include any transfers of Licensed Products made
      in connection with preclinical or clinical studies.

      2.5.  "Research Reagents" means Licensed Product(s) which are sold for in
            vitro laboratory research purposes only.

      2.6.  "Licensed Field of Use" means human and veterinary healthcare,
            genetically engineered animals and plants and Research Reagents.

      2.7.  "Licensed Territory" means worldwide.

      2.8.  "Exclusive" means that, subject to Paragraph 3.4 and Article 4,
            STANFORD shall not grant any further commercial license in the
            Licensed Territory in the Licensed Field of Use.

      2.9.  "First Commercial Sale" shall mean the first sale in a given country
            by AGT or a sublicensee or Co-venturer thereof to an unrelated third
            party, in an arms-length transaction, following receipt of all
            relevant governmental regulatory approvals which may be necessary
            for commercialization of said Licensed Product, of a Licensed
            Product in a final package form ready for use by the ultimate
            consumer as a human therapeutic agent. The term "First Commercial
            Sale" shall not include (i) a cost recovery sale made by AGT, or a
            sublicensee or Co-venturer of 

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            AGT, under an investigational regulatory submission; and (ii) sales
            and disposals, without charge, for experimental purposes or for
            purposes of clinically or otherwise testing any Licensed Product(s).

      2.10. "Manufacturing Profit" shall mean the price at which Licensed
            Products are [*].

      2.11. "Co-venturer" means Genovo, Inc. when operating under the AGT-Genovo
            Agreement or any other third party entity with which AGT
            participates in the sale of Licensed Product(s) pursuant to a joint
            venture agreement, notice of the execution of which has been
            provided to STANFORD (a "Joint Venture Agreement"). A Co-venturer 
            may or may not also be [*].

      2.12. "Joint Venture Percentage" means the portion of [*] due to either
            AGT or a Co-venturer pursuant to a Joint Venture Agreement. AGT's
            Joint Venture Percentage in the AGT-Genovo Agreement, as defined
            below, [*].

      2.13. "AGT-Genovo Agreement" means the Joint Venture Agreement dated
            February 14, 1997 between AGT and Genovo, Inc.

      2.14. "Effective Date" means January 1, 1994.

3.    GRANT

      3.1.  STANFORD hereby grants to AGT, and AGT hereby accepts, an Exclusive
            license under LICENSORS' rights in the Licensed Patent(s),
            Invention(s) and the Technology, to make and have made, use and have
            used, sell and have sold Licensed Product(s), and/or to otherwise
            engage in research, development and commercial activities relating
            to the Licensed Patent(s), Invention(s) and/or Technology within the
            Licensed Field of Use and Licensed Territory. Subject to the royalty
            obligations set

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            forth in Paragraphs 6.5, 6.6, 6.7, 6.8, 6.9 and 6.10 below, STANFORD
            hereby further grants to AGT the right to grant to purchasers and
            users of the Licensed Products immunity from suit for infringement
            of the Licensed Patents in their use of such materials. Said license
            shall include the right to grant sublicenses in accordance with
            Article 14 hereunder.

      3.2.  The initial term of said license shall commence on January 1, 1994
            and shall extend for a [*] following the date of First Commercial
            Sale, augmented by the length of any patent term extension awarded
            in connection with the Licensed Patent(s) in the United States, but
            not to exceed life of Licensed Patent(s), or unless sooner
            terminated under Article 15 hereunder (the "Initial Term"). AGT
            agrees to promptly inform STANFORD in writing of the First
            Commercial Sale.

      3.3.  At the end of the Initial Term, said license shall be extended for
            [*], unless and to the extent that STANFORD can demonstrate that AGT
            has not diligently pursued commercialization of, or will not
            effectively commercialize the Licensed Product(s). Such extension(s)
            shall not be unreasonably denied by STANFORD. The parties agree to
            discuss such extension about twelve (12) months prior to the
            conclusion of the Initial Term.

            In the event of any such demonstration, AGT shall be provided
            reasonable prior written notice and a reasonable opportunity to
            refute or cure the basis for STANFORD's concern. In the event of
            timely refutation or cure by AGT, the exclusive license shall be
            extended for renewable [*].

            Should the exclusive license not be extended in its entirety due to
            a demonstrated inadequacy, said license shall become non-exclusive
            with respect to the scope of the demonstrated inadequacy until
            expiration of the last to expire of Licensed Patent(s).

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      3.4.  STANFORD and HARVARD and the inventors shall have the right to
            practice the Invention(s) and use the Technology solely for
            non-commercial research purposes, whether by themselves or in
            collaboration with third party academic or not-for-profit research
            institutions. STANFORD and HARVARD and the inventors shall have the
            right to publish any information included in Technology. STANFORD
            and HARVARD and the inventors shall have the right to provide any
            tangible materials included in Technology to third party academic or
            not-for-profit research institutions under the terms of a material
            transfer agreement in substantially the form which has been provided
            to AGT. However, no rights shall be granted by STANFORD or HARVARD
            to any inventions or technology incorporating or utilizing such
            materials for any commercial purpose. STANFORD shall use its
            reasonable efforts to have the inventors provide a list of all such
            material transfer agreements to AGT on a quarterly basis and to
            provide AGT with copies of any such agreements which differ
            materially from the form provided to AGT, as well as copies of such
            other agreements as AGT shall reasonably request.

      3.5.  STANFORD and HARVARD agree that future inventions and discoveries
            from the laboratories of Drs. Crabtree and Schreiber (including but
            not limited to modes of synthesis, synthetic or natural analogs,
            antagonists, precursors, constructs or artificial receptors) not
            already disclosed in and expressly covered under Licensed Patent(s)
            and/or Technology may be useful to AGT in the development and/or
            commercialization of a Licensed Product(s). Subject to STANFORD's
            and HARVARD's obligations to sponsors of research, STANFORD and
            HARVARD will, as soon as practicable, bring any such new invention
            and discovery to AGT's attention and provide AGT a reasonable
            non-exclusive opportunity to negotiate a license therefor.

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      3.6.  Nothing in this Agreement shall be construed so as to restrict the
            rights of Drs. Crabtree or Schreiber to publish the results of their
            work.

4.    SPONSORS' RIGHTS

      This Agreement is subject to all of the terms and conditions of Title 35
      United States Code Sections 200 through 204, including an obligation that
      Licensed Product(s) sold or produced in the United States be "manufactured
      substantially in the United States," as well as certain obligations to
      HHMI (attached hereto as Exhibit C) and AGT agrees to take all reasonable
      action necessary on its part as licensee to enable STANFORD and HARVARD to
      satisfy their obligations thereunder, relating to the subject matter of
      the Licensed Patents.

5.    DILIGENCE

      5.1.  The parties agree that the use of all reasonable efforts and
            diligence in the development, manufacture, and sale of Licensed
            Product(s) and in the development of markets for the Licensed
            Product(s) is of mutually critical importance. STANFORD and AGT
            agree that achievement of the following development milestones shall
            constitute diligence on the part of AGT during the initial exclusive
            license period:

            (a)   [*] of an embodiment of the [*];

            (b)   Submission of a development plan or equivalent covering
                  commercialization of genetically engineered animals and
                  products for human healthcare by AGT or sublicensee(s) or
                  Co-venturers by [*];

            (c)   Submission of a development plan or equivalent detailing the
                  time lines and other appropriate information for the
                  development of

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                  genetically engineered plants and products for veterinary
                  healthcare by [*];

            (d)   [*];

            (e)   Submission of an updated business plan or equivalent detailing
                  the specific indications, time lines and other appropriate
                  information for the development and approval of human
                  pharmaceuticals, as well as indicating how products for the
                  veterinary healthcare and genetically engineered animal
                  markets may be developed using information derived from human
                  pharmaceutical product lines, by [*];

            (f)   Submission to the Food and Drug Administration by [*] of a PLA
                  or equivalent application for marketing approval .

      Both parties agree that achievement of these diligence milestones is
      subject to uncertainties regarding the availability of [*]; social,
      medical and ethical issues regarding gene therapy, territorial or legal
      restrictions on the use of biotechnology products, the regulatory climate
      and approval process, pricing or other government restrictions on certain
      pharmaceutical products, in addition to unforeseen difficulties which may
      arise in reducing the technology to practice for commercialization.
      Therefore, the parties agree to discuss and, if appropriate, rewrite said
      milestones upon AGT's notice to STANFORD on or about [*] or at any other
      time upon mutual agreement of the parties.

      Unless AGT can demonstrate diligent pursuit and progress toward commercial
      development of Licensed Product(s) (itself or through sublicensees or
      Co-venturers), STANFORD may cause the license agreement to revert to
      non-exclusive status, but only with respect to the scope of the
      inadequacy. Any such reversion shall involve

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      reasonable written notice and a reasonable opportunity for AGT to refute
      or cure the basis for STANFORD's concern.

      5.2.  In addition to the foregoing, AGT agrees to use reasonable efforts
            to make the first sale of a Research Reagent as quickly as possible
            by or before [*], with the understanding that

            (a)   any sale of a Research Reagent should be made only after [*],
                  including the [*], such that the sale of Research Reagents
                  will [*];

            (b)   prior to the issuance of a relevant patent based on the
                  Licensed Patent(s), sales of Research Reagents by unlicensed,
                  third party competitors may substantially diminish the
                  commercial feasibility and/or volume of sales of Research
                  Reagents by or for AGT;

            (c)   distribution by STANFORD and/or HARVARD of Research Reagents
                  to third parties other than actual non-commercial
                  collaborators may substantially diminish the commercial
                  feasibility and/or volume of sales of Research Reagents by or
                  for AGT; and,

            (d)   AGT may be prohibited from making, using and/or selling
                  certain Research Reagents by virtue of third party patents;

      and that upon the occurrence of situations such as the foregoing which may
      be beyond AGT's control and may delay the sale of Research Reagents under
      this Agreement in spite of AGT's reasonable efforts, the parties shall
      meet to discuss a reasonable alternative timeline or framework for the
      distribution of Research Reagents hereunder.

      5.3.  Progress Report - On or before January 1 of each year until AGT
            markets a Licensed Product(s), AGT shall make a written annual
            report to 

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            STANFORD covering the preceding year, regarding the progress of AGT
            and its sublicensees and Co-venturers toward the commercialization
            of Licensed Product(s). Such report shall include, as a minimum,
            information sufficient to enable STANFORD to satisfy reporting
            requirements of the United States Government and to ascertain
            progress by AGT and its sublicensees and Co-venturers toward meeting
            the diligence requirements of this Article 5.

6.    ROYALTIES

      6.1.  AGT agrees to pay to STANFORD a non-creditable, non-refundable
            license issue royalty of [*] within thirty (30) days following the
            Effective Date.

      6.2.  AGT also agrees to hold in the names of STANFORD and HARVARD for a
            period not to exceed two (2) years after the Effective Date, One
            Hundred Eighty Thousand (180,000) shares of AGT's common stock for
            each institution (which number may be adjusted to reflect any stock
            split so long as the total number of shares to both universities
            taken together represents three percent (3.0%) of the initial
            capitalization of AGT), which shares shall be transferred to each
            institution upon request.

            The certificates representing the shares to be issued will contain a
            legend providing that the securities represented thereby have not
            been registered under the Securities Act of 1933 (the "ACT"), as
            amended, or any state securities laws and neither the securities nor
            any interest therein may be offered, sold, transferred, pledged or
            otherwise disposed of except (i) pursuant to an effective
            registration statement under the ACT or such laws or (ii) if, in the
            opinion of counsel for the holder, which counsel and opinion are
            reasonably satisfactory to counsel for AGT an exemption from
            registration under such Securities Act and

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            such laws is available. The stock shall not, without AGT's prior
            written consent, be transferable until one year after AGT's initial
            public offering, if any.

      6.3.  In addition, AGT shall pay license milestone royalties as follows:

            (a)   [*] on the first to occur of:

                  [*];  or

                  [*];

            (b)   [*] on the first to occur of:

                  [*]; or

                  IND filing in the United States by or on behalf of AGT for a
                  product covered by Licensed Patent(s);

            (c)   [*] on the first to occur of:

                  [*]; or

                  Submission by AGT of the first Product License Application
                  (PLA) in the United States for a product covered under
                  Licensed Patent(s);

            (d)   [*] upon the first approval in the United States of a PLA (or
                  its functional equivalent) filed by AGT for a product covered
                  by the Licensed Patent(s); and

            (e)   [*] for issuance of the first Licensed Patent in the United
                  States which contains one or more claims which would be
                  infringed by the making, using or selling by a third party of
                  products or services which would compete with a Licensed
                  Product(s) in the field of human and veterinary healthcare.

    
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      6.4.  Beginning [*] and each January 1 thereafter prior to its receipt of
            official written approval of a Product License Application (PLA) for
            the first human therapeutic Licensed Product in the United States,
            AGT also shall pay to STANFORD an annual license maintenance royalty
            of [*]. Such annual license maintenance royalties shall be
            nonrefundable, but shall be [*] creditable against earned royalties
            to the extent provided in Paragraph 6.14.

            Beginning with the first calendar year following said receipt of
            official written approval of said PLA, said annual license
            maintenance royalty shall increase to [*]. Such annual license
            maintenance royalties shall be nonrefundable, but shall be [*]
            creditable against earned royalties in the year in which said earned
            royalties are due.

            No annual license maintenance royalty shall be due in the years in
            which payments are also made under 6.3(a) and/or 6.3(b) above.

      6.5.  Subject to Sections 6.6, 6.9 and 6.10, AGT shall also pay STANFORD
            earned royalties on Net Sales resulting from sales of Licensed
            Product by AGT and/or its Co-venturers as follows:

            On Net Sales of Licensed Product(s) covered only by one or more
            pending, unissued claims of the Licensed Patent(s):

            (a)   [*] on such Net Sales of Licensed Products other than Research
                  Reagents for sales made before [*] after which no such royalty
                  obligations exist until such time as Licensed Patent(s) issue
                  containing one or more claims which would be infringed by the
                  making, using or selling of such Licensed Product(s); and

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            (b)   [*] on such Net Sales in which the Licensed Product(s) are
                  Research Reagents;

            On Net Sales of Licensed Product(s) in any country to the extent
            that manufacture or sale of such Licensed Product(s) would infringe
            a valid claim of an issued, unexpired Licensed Patent in that
            country or the country of manufacture:

            (a)   [*] in Net Sales per year of Licensed Product(s) other than
                  Research Reagents;

            (b)   [*] on amounts in excess of [*] in Net Sales per year of
                  Licensed Product(s) other than Research Reagents; and

            (c)   [*] of Net Sales of Research Reagents.

      6.6.  Nothwithstanding any other provision of this Agreement including,
            without limitation, Paragraph 6.5 above,

            (a)   the royalty payable to STANFORD with respect to Net Sales
                  resulting from sales of Licensed Product by AGT or a
                  Co-venturer or by a sublicensee of AGT of a Licensed Product
                  [*]; provided, however, that [*] covered by Paragraphs
                  14.6(a)(i) and 14.6(b)(i) below with respect to such
                  sublicense.

            (b)   the royalty payable to STANFORD with respect to Net Sales
                  resulting from sales of Licensed Product by AGT or a
                  Co-venturer of a Licensed Product for which [*] shall be made
                  pursuant to Paragraph 6.5 above based on [*].

      6.7.  For any sublicenses of the type described in Paragraph 14.5, AGT
            shall also pay STANFORD royalties on Net Sales resulting from sales
            of

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            Licensed Product by its sublicensee(s) who are not Co-venturers in
            accordance with the terms of Paragraph 6.5 and 6.6 above.

      6.8.  Subject to Section 6.16, for any sublicenses entered into [*], of
            the type described in Paragraph 14.6, AGT shall also pay STANFORD
            royalties on the Net Sales resulting from sales of Licensed Product
            by its sublicensee(s) who are not Co-venturers in accordance with
            the terms of Paragraph 6.5 and 6.6(a) above. Payment of royalties
            with respect to sales of Licensed Product by sublicensees under
            sublicenses of the type described in Paragraph 14.6 entered into [*]
            shall be governed by Paragraph 14.6.

      6.9.  Notwithstanding any other provision of this Agreement including,
            without limitation, Paragraph 6.5 above, for sales of Licensed
            Product(s) by AGT, and/or its Co-venturers, to third party strategic
            partners for resale, in lieu of any payment based on the transfer
            price of the Licensed Product to the strategic partner, AGT shall
            pay to STANFORD a royalty of [*] received and retained by AGT for
            such Licensed Product. This payment shall be in addition to any
            payment due as a result of any royalties paid by strategic partners
            to AGT and/or its Co-venturers with respect to such Licensed
            Product(s).

      6.10. Notwithstanding anything in this Article 6 or Article 14 to the
            contrary, for any Licensed Product which is a Licensed Product
            solely because of the use of Licensed Patents or Technology in the
            manufacture of such Licensed Product, but where the [*], AGT shall
            pay STANFORD a royalty of [*].

      6.11. No multiple royalties shall be due in the event that a Licensed
            Product(s) is covered by more than one claim of the Licensed
            Patent(s).

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      6.12. Notwithstanding any other provision herein, AGT's obligation to pay
            earned royalties hereunder shall terminate upon the latter of:

            (a)   [*] , if no relevant Licensed Patent(s) issues; or

            (b)   For so long as AGT, by its activities would, but for the
                  license granted herein, infringe a valid claim of an issued,
                  unexpired Licensed Patent(s).

      6.13. Upon conversion by STANFORD of this Exclusive license to
            non-exclusive status with respect to any Licensed Product(s) in the
            field of human and veterinary healthcare, the royalties due
            hereunder on Net Sales of such Licensed Product(s) shall be reduced
            to [*] upon the execution by STANFORD and/or HARVARD of any license
            to a third party which would permit the making, using and/or selling
            of one or more products which could compete with Licensed
            Product(s). STANFORD agrees to promptly notify AGT of the execution
            of any such third party license. All other royalties shall remain at
            their respective levels, provided, however, that if STANFORD or
            HARVARD grant any license to one or more third parties under the
            Licensed Patent(s), under royalty rates which are less than those
            set forth in this Agreement as modified by this Paragraph, the
            royalties owed by AGT hereunder shall be reduced to the same
            level(s) as those of the third party agreement having the lowest
            royalty rate(s).

      6.14. Creditable payments under this Agreement may be applied against up
            to [*] of each earned royalty payment which AGT would be required to
            pay pursuant to Paragraphs 6.5, 6.6, 6.7, 6.8, 6.9 and 6.10 above
            until the entire credit is exhausted.

      6.15. Any royalties payable by AGT pursuant to this Agreement shall be
            paid in United States Dollars. To the extent that royalties are
            accrued in accordance with Paragraphs 6.5, 6.6, 6.7, 6.8, 6.9 or
            6.10 upon Net Sales

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            or Manufacturing Profit in a currency other than United States
            Dollars, the royalty statement required in accordance with Paragraph
            8.1 shall be accompanied by AGT's payment of royalty in United
            States Dollars, with conversion to be made at the rate published in
            the Wall Street Journal on the business day next following the end
            of the Calendar Quarter. All non-U.S. taxes related to royalty
            payments shall be paid by AGT and are not deductible from the
            payments due STANFORD provided that STANFORD use reasonable efforts
            to cooperate with AGT in obtaining any available waivers or
            abatements of such taxes.

      6.16. The parties shall meet on or before [*] to discuss in good faith
            whether the provisions in Paragraphs 6.8 and 14.7 should be [*].

7.    PATENT PROSECUTION

      7.1.  STANFORD, HARVARD and AGT shall share responsibility for patent
            prosecution as follows: AGT shall lead the management of prosecution
            of the Licensed Patent(s) using patent counsel reasonably acceptable
            to STANFORD and HARVARD, and AGT shall be responsible for all costs
            relating thereto. Counsel will directly notify STANFORD, HARVARD and
            AGT, and provide them copies of any official communications from
            United States and foreign patent offices relating to said
            prosecution. Counsel shall also provide STANFORD and HARVARD with
            copies of all relevant communications to the various patent offices,
            so that STANFORD and HARVARD may be informed and apprised of the
            continuing prosecution of the Licensed Patent(s). STANFORD and
            HARVARD shall have reasonable opportunities to participate in
            decision making on all key decisions affecting filing, prosecution
            and maintenance of the Licensed Patent(s), including, without
            limitation, reasonable opportunity to review the abandonment of any
            Licensed Patent(s) or claims thereof, and AGT will use best efforts
            to incorporate STANFORD

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            and HARVARD's reasonable suggestions regarding said prosecution. AGT
            shall use all reasonable efforts to amend any patent application to
            include claims reasonably requested by STANFORD and HARVARD to
            protect Licensed Product(s). No case will be abandoned without
            giving STANFORD and HARVARD reasonable notice and opportunity to
            pursue the application.

      7.2.  Except as by mutual agreement between the parties, patent
            applications comprising the Licensed Patent(s) are to be filed in
            the major world markets which filing shall be satisfied by filing in
            the following patent offices: [*].

      7.3.  If STANFORD and HARVARD can demonstrate that they are not being
            adequately informed or apprised of the continuing prosecution of
            Licensed Patent(s), or that they are not being provided with
            reasonable opportunities to participate in decision making as
            indicated in the above Paragraph, STANFORD and HARVARD shall assume
            lead management of the prosecution of the Licensed Patent(s), using
            patent counsel reasonably acceptable to AGT. STANFORD and HARVARD
            shall thereafter provide AGT with the same safeguards which STANFORD
            and HARVARD were due under Paragraph 7.1. Any such demonstration
            shall involve reasonable written notice and a reasonable opportunity
            for AGT to refute or cure the basis for STANFORD and HARVARD's
            concern. STANFORD and HARVARD agree to diligently prosecute or
            assist in prosecuting Licensed Patent(s).

      7.4.  Within thirty (30) days after receipt of a statement from STANFORD,
            AGT shall reimburse STANFORD for all reasonable costs incurred by
            STANFORD prior to the Effective Date in connection with the
            preparation and filing of the Licensed Patent(s), which costs total
            [*].

                                      -18-
   19



      7.5.  In the event that STANFORD and HARVARD assume lead management of the
            Licensed Patent(s) under Paragraph 7.3 above, AGT shall reimburse
            STANFORD for all reasonable costs incurred in the preparation,
            filing, prosecution and maintenance of the Licensed Patent(s) within
            thirty (30) days after receipt of a statement from STANFORD.
            STANFORD and HARVARD agree to use reasonable efforts to minimize
            such patent costs by whatever means necessary for the benefit of
            AGT, provided however, that the quality and scope of the Licensed
            Patent(s) shall not be jeopardized by such minimization.

8.    QUARTERLY REPORTS, PAYMENTS AND ACCOUNTING

      8.1.  QUARTERLY EARNED ROYALTY PAYMENT AND REPORT - AGT shall notify
            STANFORD within sixty (60) days of the First Commercial Sale of a
            Licensed Product. Subsequently, AGT shall make written reports and
            earned royalty payments to STANFORD within ninety (90) days after
            the end of each calendar quarter in which royalties accrued under
            this Agreement. Each such report shall state the number,
            description, aggregate revenues from sales by AGT and/or its
            sublicensee(s) and/or its Co-venturers, deductions applicable to
            determine the Net Sales and the amount of the royalty due pursuant
            to Paragraphs 6.5, 6.6, 6.7, 6.8, 6.9 and 6.10 hereof for said
            calendar quarter. If no sales were made, the report shall so state.
            Royalty payments based on good faith estimates by AGT shall be
            adjusted in the next subsequent quarter and shall be accompanied by
            an explanation of said adjustment. Concurrent with the making of
            each such report, AGT shall include the payment then due STANFORD.
            Late payments shall be subject to an interest charge of one and one
            half percent (1 1/2%) per month.

      8.2.  ACCOUNTING - AGT agrees to keep and maintain records for a period of
            three (3) years showing the manufacture, sale, use, and other
            disposition

                                     --19-
   20


            of products sold or otherwise disposed of under the license herein
            granted. Such records will be kept in a format as required by
            Generally Accepted Accounting Principles and in sufficient detail to
            enable the royalties payable hereunder by AGT to be determined.
            STANFORD shall have the right to nominate an independent certified
            public accountant acceptable to AGT who may be permitted access to
            AGT's Records during reasonable business hours and upon reasonable
            notice given to AGT in advance of such visit, for the purpose of
            verifying the royalty payable as provided for in this agreement for
            the two preceding years, but this right may not be exercised more
            than once in any year, and the accountant shall agree in writing to
            hold in confidence such records except to the extent of verifying to
            STANFORD information relating solely to the accuracy of the royalty
            report and the royalty payments made according to this agreement.
            The entire cost for such inspection shall be borne by the STANFORD
            unless the audit shows that AGT has underpaid royalties due to
            STANFORD by more than five percent (5%) of the amount due according
            to such audit and such an underreporting is not corrected or
            correctable in the following quarter, whereupon AGT shall bear such
            reasonable cost of the audit. If an audit shows any underpayment or
            overpayment, a correcting payment or refund shall be made within
            thirty (30) days of receipt of verification by the party owing the
            same. Particular documents from which the accounting or royalties
            are determined need not be retained by the AGT for more than two (2)
            years after the completion of an audit thereof, if an audit has been
            requested, and, in any event, no more than three (3) years from
            their date of origin.

9.    NEGATION OF WARRANTIES

      9.1.  Nothing in this Agreement is or shall be construed as:

                                      -20-
   21


            (a)   A warranty or representation by STANFORD or HARVARD as to the
                  validity or scope of any Licensed Patent(s);

            (b)   A warranty or representation that anything made, used, sold,
                  or otherwise disposed of under any license granted in this
                  Agreement is or will be free from infringement of any other
                  patents, copyrights, and rights;

            (c)   An obligation to bring or prosecute actions or suits against
                  third parties for infringement, except to the extent and in
                  the circumstances described in Article 13;

            (d)   Granting by implication, estoppel, or otherwise any licenses
                  or rights under patents or other rights of STANFORD or HARVARD
                  or other persons other than Licensed Patent(s), regardless of
                  whether such patents or other rights are dominant or
                  subordinate to any Licensed Patent(s); or

            (e)   An obligation to furnish any technology or technological
                  information other than that presented or described in the
                  Licensed Patent(s).

      9.2.  Except as expressly set forth in this Agreement, STANFORD AND
            HARVARD MAKE NO REPRESENTATIONS AND EXTEND NO WARRANTIES OF ANY
            KIND, EITHER EXPRESS OR IMPLIED. THERE ARE NO EXPRESS OR IMPLIED
            WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE,
            OR THAT THE MANUFACTURE, USE OR SALE OF THE LICENSED PRODUCT(S) WILL
            NOT INFRINGE ANY PATENT, COPYRIGHT, TRADEMARK, OR OTHER RIGHTS OR
            ANY OTHER EXPRESS OR IMPLIED WARRANTIES.

                                      -21-
   22

      9.3.  AGT agrees that nothing in this Agreement grants AGT any express or
            implied license or right under or to:

            (a)   United States Patent No. 4,237,224, "Process for Producing
                  Biologically Functional Molecular Chimeras"; United States
                  Patent No. 4,468,464 and United States Patent No. 4,740,470,
                  both entitled, "Biologically Functional Molecular Chimeras"
                  (collectively known as the Cohen/Boyer patents), or reissues
                  thereof; or

            (b)   United States Patent 4,656,134 "Amplification of Eucaryotic
                  Genes" or any patent application corresponding thereto.

10.   INDEMNITY

      10.1. AGT agrees to indemnify, hold harmless, and defend STANFORD,
            HARVARD, HHMI and Stanford University Hospital and their respective
            directors, governing board members, trustees, officers, faculty,
            medical and professional staff, employees, students, and agents and
            their respective successors, heirs, and assigns against any and all
            claims arising from breach of this Agreement by AGT, any
            sublicensee(s) or Co-venturers, including without limitation any and
            all claims for death, illness, personal injury, property damage, and
            improper business practices arising out of the manufacture, use,
            sale, or other disposition of Invention(s), Licensed Patent(s), or
            Licensed Product(s) by AGT or sublicensee(s) or Co-venturers, or
            their customers, except as may be due solely to grossly negligent
            acts by STANFORD, HHMI and/or HARVARD.

      10.2. STANFORD, HARVARD and HHMI shall not be liable for any indirect,
            special, consequential, or other damages whatsoever, whether
            grounded in tort (including negligence), strict liability, contract
            or otherwise.

                                      -22-
   23


            STANFORD and HARVARD and HHMI shall not have any responsibilities or
            liabilities whatsoever with respect to Licensed Product(s).

      10.3. AGT shall at all times comply, through insurance or self-insurance,
            with all statutory workers' compensation and employers' liability
            requirements covering any and all employees with respect to
            activities performed under this Agreement.

      10.4. In addition to the foregoing, AGT shall maintain, during the term of
            this Agreement, Comprehensive General Liability Insurance, including
            Products Liability Insurance, with reputable and financially secure
            insurance carrier(s) to cover the activities of AGT and its
            sublicensee(s). Such insurance shall provide minimum limits of
            liability considered to be standard for AGT's industry prior to
            human clinical trials.

            Commencing with human clinical trials of Licensed Product(s), AGT
            shall maintain such insurance with minimum limits of liability of
            [*] and shall include STANFORD, HARVARD, HHMI, Stanford University
            Hospital, their trustees, directors, officers, employees, students,
            and agents as additional insureds. Such insurance shall be written
            to cover claims incurred, discovered, manifested, or made during or
            after the expiration of this Agreement. At STANFORD's request, AGT
            shall furnish a Certificate of Insurance evidencing primary coverage
            and requiring thirty (30) days prior written notice of cancellation
            or material change to STANFORD. AGT shall advise STANFORD, in
            writing, that it maintains excess liability coverage (following
            form) over primary insurance for at least the minimum limits set
            forth above. All such insurance of AGT shall be primary coverage;
            insurance of STANFORD, HARVARD, HHMI or Stanford University Hospital
            shall be excess and noncontributory. STANFORD acknowledges that the
            insurance specified in this Paragraph may be or become unavailable
            or

                                      -23-
   24


            unavailable on commercially practicable terms. In such event,
            STANFORD agrees to discuss with AGT commercially reasonable
            alternatives.

11.   MARKING

      Prior to the issuance of patents on the Invention(s), AGT agrees to mark
      Licensed Product(s) (or their containers or labels) made, sold, or
      otherwise disposed of by it under the license granted in this Agreement
      with the words "Patent Pending," and following the issuance of one or more
      patents, with the numbers of the Licensed Patent(s).

12.   NAMES AND MARKS

      It is understood that the names of HARVARD, STANFORD and HHMI will appear
      in disclosure documents required by securities laws, and in other
      regulatory and administrative filings in the ordinary course of AGT's
      business. The above described use will be deemed to be non-commercial
      uses. AGT agrees not to identify STANFORD, HARVARD or HHMI or to use the
      name of any STANFORD or HARVARD faculty member, employee, or student or
      any trademark, service mark, trade name, or symbol of STANFORD, HARVARD,
      HHMI or the Stanford University Hospital, in any commercial advertisement
      or similar material that is used to promote or sell products, without
      STANFORD'S, HARVARD'S, or HHMI's prior written consent, except that AGT
      may state that it has acquired this license from STANFORD and HARVARD.

13.   INFRINGEMENT BY OTHERS: PROTECTION OF PATENTS

      13.1. AGT and STANFORD shall promptly inform each other of any suspected
            infringement of any issued Licensed Patent(s) by a third party
            during the term of this Agreement. During the initial term of the
            Exclusive license provided in Paragraph 3.2 and for so long as the
            license of exclusive rights may be extended thereafter, STANFORD and
            AGT each shall have

                                      -24-
   25


            the right to institute an action for infringement of the Licensed
            Patent(s) against such third party in accordance with this Article
            13.

      13.2. Joint Action

            [*].

      13.3. Absent joint action pursuant to Paragraph 13.2, [*] in the first
            instance to (but not the obligation to):

            (a)   bring any action for infringement of the Licensed Patent(s),
                  provided that AGT will keep STANFORD advised with regard to
                  any action that is brought or proposed to be brought;

            (b)   defend any action relating to enforcement of the Licensed
                  Patent(s);

            (c)   bring such action in its own name, or, if in the opinion of
                  counsel for AGT, that it is necessary or desirable, in the
                  name of LICENSORS or in the names of LICENSORS and AGT; [*];

            (d)   [*];

            (e)   settle the lawsuit, at it sole discretion; provided that (i)
                  such settlement is not inconsistent with the terms of this
                  Agreement; [*]; and [*].

            (f)   [*]; and

            (g)   retain any monetary recovery in any action brought or proposed
                  to be brought by (or defended by) AGT as a result of any
                  judgment rendered in favor of AGT or collected as a result of
                  any settlement of a lawsuit hereunder; provided, however, that
                  sums, net of

                                      -25-
   26


                  expenses of such litigation, that are collected by AGT on
                  account of past infringing sales by such third parties shall
                  be computed in accordance with Paragraphs 6.5 and 6.6 hereof
                  [*] and that AGT further [*].

      13.4. Action by LICENSORS.

            In the event that AGT declines to take action against an infringer,
            and in the absence of an agreement to institute a suit jointly,
            STANFORD may institute suit, and, at its option, join AGT as a
            plaintiff. If STANFORD decides to institute suit, then it shall so
            notify AGT in writing. AGT shall have the right to join STANFORD in
            such suit pursuant to Paragraph 13.2. However, if AGT declines to do
            so and fails to notify STANFORD in writing, within thirty (30) days
            after the date of such notice, that it will join in enforcing the
            patent pursuant to the provisions hereof, AGT shall be deemed to
            assign to STANFORD all of AGT's rights, causes of action, and
            damages resulting from any such alleged infringement. STANFORD shall
            bear the entire cost of such litigation and shall be entitled to
            retain the entire amount of any recovery or settlement it obtains
            from said infringer.

      13.5. Multiple Infringement.

            Notwithstanding any provision or implication to the contrary in this
            Agreement, neither party shall be obligated under this Article 13 to
            proceed against more than one infringer at a time.

      13.6. Should any of STANFORD, HARVARD or AGT commence a suit under the
            provisions of this Article 13 and thereafter elect to abandon the
            same, it shall give timely notice to the other party who may, if it
            so desires, continue prosecution of such suit, provided, however,
            that the sharing of

                                      -26-
   27


            expenses and any recovery in such suit shall be as agreed upon
            between STANFORD and AGT.

14.   SUBLICENSE(s)

      14.1. AGT may grant sublicense(s) during the Exclusive period.

      14.2. If at any time [*], AGT has not commercialized or is not actively
            attempting to commercialize the Invention(s) in a potential and
            material market or market territory, AGT will attempt to:

            (a)   Identify a willing sublicensee reasonably acceptable to AGT;
                  and

            (b)   Negotiate in good faith a sublicense(s) in such market or
                  territory.

      14.3. Any sublicense(s) granted by AGT under this Agreement shall be
            subject and subordinate to terms and conditions of this Agreement,
            except:

            (a)   Sublicense terms and conditions shall reflect that any
                  sublicensee(s) shall not further sublicense [*]; and

            (b)   The earned royalty rate specified in the sublicense(s) may be
                  at higher rates than the rates in this Agreement. Any such
                  sublicense(s) also shall expressly include the provisions of
                  Articles 8, 9, and 10 for the benefit of STANFORD, HARVARD and
                  HHMI and provide for the transfer of all obligations,
                  including the payment of royalties specified in such
                  sublicense(s), to STANFORD or its designee, in the event that
                  this Agreement is terminated.

      14.4. AGT agrees to provide STANFORD with a copy of all portions of
            sublicense agreement(s) which are relevant to STANFORD and

                                      -27-
   28


            HARVARD and to the obligations of AGT and its sublicensees thereto
            under this Agreement.

      14.5. If AGT grants sublicense(s) solely under LICENSORS' rights in the
            Licensed Patent(s), AGT shall pay to STANFORD:

            (a)   In the case of sublicense(s) for the fields of human and
                  veterinary healthcare or genetically engineered animals, [*]
                  of the following revenue: all non-royalty income and all
                  earned royalties on Net Sales for sublicensee(s) in excess of
                  royalty due to STANFORD under Paragraph 6.7 which are actually
                  received by AGT; and

            (b)   In the case of sublicense(s) for the fields of Research
                  Reagents or genetically engineered plants, [*] of the
                  following revenue: all non-royalty income and all earned
                  royalties on Net Sales of sublicensee(s) in excess of royalty
                  due to STANFORD under Paragraph 6.7 which are actually
                  received by AGT.

      14.6. The following provisions shall apply to sublicense(s) other than
            sublicense(s) covered in Paragraph 14.5 above granted to
            non-Co-venturers on or before [*]:

            (a)   If AGT grants sublicense(s) other than sublicense(s) covered
                  in Paragraph 14.5 above to non-Co-venturers, in the fields of
                  human and veterinary healthcare or genetically engineered
                  animals, under LICENSORS' rights in the Licensed Patent(s),
                  then AGT shall pay to STANFORD: [*].

            (b)   If AGT grants sublicense(s) other than sublicense(s) covered
                  in Paragraph 14.5 above to non-Co-venturers, in the fields of
                  Research Reagents or genetically engineered plants, under

                                      -28-
   29


                  LICENSORS' rights in the Licensed Patent(s), then AGT shall
                  pay to STANFORD: [*].

            (c)   Notwithstanding the foregoing, in no event will STANFORD be
                  paid less than [*] of the Net Sales of AGT's sublicensees
                  other than Co-venturers unless AGT elects, at its sole
                  discretion, upon any execution of a sublicense to a
                  non-Co-venturer hereunder, to pay STANFORD [*] covered by
                  Paragraphs 14.6(a)(i) and 14.6(b)(i) above, in which case
                  STANFORD shall receive [*].

            (d)   Notwithstanding all of the foregoing, in the event that
                  payments and earned royalties under sublicenses of LICENSORS'
                  rights in the Licensed Patents are to be shared with
                  Co-venturers under the AGT-Genovo Agreement or any other Joint
                  Venture Agreements between AGT and Co-venturers, payments to
                  STANFORD shall be made pursuant to Paragraphs 14.6(a)(i) and
                  (ii) above, or Paragraphs 14.6(b)(i) and (ii) above, if
                  applicable, as modified by Paragraph 14.6(c), based on that
                  portion of upfront cash payments, other license fee payments
                  and earned royalties received by AGT after deduction of any
                  amounts payable to any Co-venturer or retained by the
                  Co-venturer. Accordingly, for sublicenses to third parties
                  resulting from the joint venture between AGT and Genovo, Inc.,
                  payments under Paragraphs 14.6(a)(i) and (ii) shall be based
                  [*].

            (e)   For the avoidance of doubt, it is acknowledged and agreed that
                  payments for [*] for the purposes of this Agreement.

      14.7. Subject to Paragraph 6.16, the following provisions shall apply to
            sublicense(s) other than sublicense(s) covered in Paragraph 14.5
            above granted to non-Co-venturers after [*]: If AGT grants
            sublicense(s), other

                                      -29-
   30


            than sublicense(s) covered in Paragraph 14.5 above, to
            non-Co-venturers in the fields of Research Reagents or genetically
            engineered plants, under LICENSORS' rights in the Licensed
            Patent(s), then AGT shall pay to STANFORD [*] of the following
            non-royalty income: upfront cash payments and other license fee
            payments received by AGT in consideration of said sublicense(s).

15.   TERMINATION

      15.1. AGT may terminate this Agreement by giving STANFORD at least thirty
            (30) days prior written notice.

      15.2. STANFORD may terminate this Agreement on thirty days' prior written
            notice in the event of material breach by AGT in the substantial
            performance of its essential obligations hereunder, specifically
            including the payment of royalties and providing of reports, by
            causes and reasons within its control and responsibility (and not
            subject to force Majeure as set forth below), but only if AGT has
            not cured such breach or has not taken substantial steps toward
            curing such breach within sixty (60) days after written notice
            requesting the correction of such breach.

      15.3. Surviving any termination are:

            (a)   AGT's obligation to pay royalties accrued or accruable;

            (b)   Any cause of action or claim of AGT or STANFORD, accrued or to
                  accrue, because of any breach or default by the other party;

            (c)   The provisions of Articles 8, 9, and 10; and

            (d)   AGT's right to sell or otherwise dispose of any Licensed
                  Product(s) remaining in its inventory at the time of
                  termination, provided that royalties shall be due to STANFORD
                  on Net Sales

                                      -30-
   31


                  of such inventory as if this Agreement were still in full
                  force and effect.

16.   ASSIGNMENT

      AGT may assign this Agreement with the prior written consent of STANFORD.
      However, upon notice to STANFORD, AGT may, without further obligation to
      STANFORD, assign this Agreement to an entity with which it merges or
      consolidates or to a corporation, partnership or other business entity
      which during the term of this Agreement, directly or indirectly, is
      controlled by, controls, or is under common control with AGT, or to which
      substantially all of its assets relating to the Licensed Patent(s) are
      sold or otherwise transferred or to a partnership of which AGT is a
      partner.

17.   ARBITRATION

      17.1. Any controversy arising under or related to a material provision of
            this Agreement, and any disputed, substantial claim by either party
            against the other under this Agreement, excluding any dispute
            relating to patent validity or infringement arising under this
            Agreement or any controversy or dispute relating to HHMI's rights
            under Article 10 hereof, shall be settled by arbitration in
            accordance with the Licensing Agreement Arbitration Rules of the
            American Arbitration Association.

      17.2. Upon request by either party, arbitration will be by a third party
            arbitrator mutually agreed upon in writing by AGT and STANFORD
            within thirty (30) days of such arbitration request. Judgment upon
            the decision rendered by the arbitrator shall be final and
            nonappealable and may be entered in any court having jurisdiction
            thereof.

      17.3. The parties shall be entitled to discovery in like manner as if the
            arbitration were a civil suit before a United States Federal Court
            for a 

                                      -31-
   32


            District to be chosen by the party other than the party which
            initiated the request for arbitration. The Arbitrator may limit the
            scope, time and/or issues involved in discovery.

      17.4. Any arbitration shall be held at a neutral location mutually agreed
            upon in writing by the parties hereto and shall be conducted in
            adherence to the Federal Rules of Evidence.

      17.5. The fact that arbitration proceedings have been requested, are being
            conducted and/or have concluded, as well as all information
            concerning the nature of the controversy, the subject matter of the
            arbitration, materials and/or testimony produced for discovery
            whether or not admitted into evidence as well as the nature and/or
            details of any decision by an arbitrator, shall be maintained in
            confidence to the fullest extent provided by law. Any disclosure of
            any of the foregoing by any party shall be preceded by written
            notice to the other parties of the nature, scope, content, place,
            date and time of any such intended disclosure, permitting any other
            party hereto to seek a protective order or any other action
            appropriate under the circumstances.

      17.6. All expenses incurred in the arbitration, without limitation, shall
            be divided equally among the parties. Each party shall be
            responsible for paying its own share of such expenses.

18.   CONFIDENTIALITY

      18.1. AGT, in its performance hereunder, may be disclosing to the Office
            of Technology Licensing at STANFORD confidential and proprietary
            information comprising correspondence, documents (such as progress
            reports, royalty reports and development plans) and other
            information relating to AGT's performance of its obligations under
            this Agreement ("Confidential Information").

                                      -32-
   33

      18.2. The Office of Technology Licensing at STANFORD agrees to use the
            Confidential Information only for the purpose for which disclosed by
            AGT.

      18.3. The Office of Technology Licensing at STANFORD agrees not to
            disclose, directly or indirectly, the Confidential Information to
            any third person or entity. The Office of Technology Licensing at
            STANFORD shall have the right to disclose such Confidential
            Information to employees of the Office for Technology and Trademark
            Licensing at HARVARD and to other employees of STANFORD and HARVARD
            who have a need to know such information and agree to be bound by
            the confidentiality provisions herein. The Office of Technology
            Licensing at STANFORD and the Office for Patent and Trademark
            Licensing at HARVARD will treat all such information as confidential
            and proprietary property of AGT. STANFORD and HARVARD may, however,
            disclose to third parties total annual royalty payments and general
            statistical information made hereunder in the context of disclosing
            statistical information pertaining to the performance of the Office
            of Technology Licensing.

      18.4. The term "Confidential Information" does not include information
            that

            (a)   is or becomes available to the public other than by disclosure
                  in violation of this Agreement,

            (b)   was within the possession of STANFORD or HARVARD prior to the
                  disclosure thereto by AGT,

            (c)   is obtained by the STANFORD and HARVARD from a third party who
                  had the legal right to disclose the information to STANFORD
                  and HARVARD, or

                                      -33-
   34

            (d)   is required to be disclosed by law, government regulation or
                  court order requiring disclosure thereof, or is required to be
                  disclosed to HHMI and/or DHHS as sponsors of the research
                  resulting in the Invention(s), in any such case, provided that
                  AGT is provided with prior written notice of any such
                  disclosure so that AGT may seek a protective order or take
                  other action reasonable in light of the circumstances.

19.   MISCELLANEOUS

      19.1. Waivers.

            Any delay or forbearance by either party in exercising any right
            hereunder shall not be deemed a waiver of that right.

      19.2. Entire Agreement.

            This Agreement, including the Exhibits attached hereto and which are
            incorporated herein by reference, contains the entire understanding
            of the parties hereto, and there are no other agreements or
            understandings, express or implied, written or oral, as to the
            subject matter hereof. Without limiting the generality of the
            foregoing, the License Agreement is hereby superseded.

      19.3. Amendments.

            This Agreement may not be amended or altered except by a written
            instrument signed by an authorized representative of each party.

                                      -34-
   35

      19.4. Governing Laws.

            This Agreement shall be governed by the laws of the State of
            California applicable to agreements negotiated, executed and
            performed wholly within California.

      19.5. Severability.

            The parties agree that if any part, term, or provision of this
            Agreement shall be found illegal or in conflict with any valid
            controlling law, the validity of the remaining provisions shall not
            be affected thereby. In the event of the legality of any provision
            of this Agreement is brought into question because of a decision by
            a court of competent jurisdiction, the parties shall revise the
            provision in question or may delete it entirely so as to comply with
            the decision of said court.

20.   FORCE MAJEURE

            Neither AGT nor its sublicensees shall be liable or be in breach of
            any provision of this Agreement for any failure or omission on its
            or their part to perform any obligation hereof because of force
            majeure, including, without limitation, war, riot, fire, explosion,
            flood, sabotage, accident or other impediments or hindrances of
            transportation, strike or other labor disturbances, governmental act
            or omission including governmental prohibition, or failure to
            approve, of the manufacture, sale or use of a Licensed Product, or
            any other cause beyond the control of the party; provided that such
            failure or omission resulting from one of the foregoing causes is
            cured as soon as is practicable after the occurrence of one or more
            of the above-mentioned causes.

                                      -35-
   36

21.   NOTICES

            All notices under this Agreement shall be deemed to have been fully
            given when done in writing and deposited in the United States mail,
            registered or certified, and addressed as follows:

              To STANFORD:    Office of Technology Licensing
                              Stanford University
                              900 Welch Road, Suite 350
                              Palo Alto, CA 94304-1850
                              Attention: Director

              To AGT:         ARIAD Gene Therapeutics, Inc.
                              26 Landsdowne Street
                              Cambridge, MA 02139
                              Attention: Chairman & Chief Executive Officer

      Either party may change its address upon written notice to the other
      party.

22.   COUNTERPARTS

      This Agreement may be executed in one or more counterpart copies, each of
      which shall be deemed to be an original and all of which shall together be
      deemed to constitute one and the same instrument.

                                      -36-
   37



      IN WITNESS WHEREOF, the parties hereto have executed this Agreement in
duplicate originals by their duly authorized officers or representatives.



                              THE BOARD OF TRUSTEES OF THE LELAND
                              STANFORD JUNIOR UNIVERSITY



                              Signature /s/ Katharine Ku
                                        --------------------------

                              Name Katharine Ku
                                   -------------------------------

                              Title Director, Technology Licensing
                                    ------------------------------

                              Date Jan. 26, 1998
                                   -------------------------------




                              ARIAD GENE THERAPEUTICS, INC.



                              /s/ Harvey Berger
                              ------------------------------------
                              Harvey J. Berger, M.D.
                              Chairman and Chief Executive Officer

                              Date January 21, 1998
                                   -------------------------------


                                      -37-

   38



                                    EXHIBIT A
                                    ---------

                                   INVENTIONS

      [*]


                                      -38-