EXHIBIT 10.36

                        EXCLUSIVE SUBLICENSE AGREEMENT

     THIS EXCLUSIVE SUBLICENSE AGREEMENT (the "Agreement") is made and entered
into as of the 9th day of June, 1999 ("Effective Date") by and between ALKERMES,
INC., having its principal place of business located at 64 Sidney Street,
Cambridge, Massachusetts 02139 ("Alkermes") and TARGETED GENETICS CORPORATION,
having its principal place of business located at 1100 Olive Way, Suite 100,
Seattle, Washington 98101 ("Targeted").  Alkermes and Targeted are each referred
to herein by name or as a "Party", or, collectively, as the "Parties".

     WHEREAS, Alkermes is the exclusive licensee from the Children's Hospital
Research Foundation/Children's Hospital, Inc. ("Children's Hospital") of certain
"Licensed Patent Rights" and "Licensed Materials" relating to Adeno-Associated
Virus (AAV) packaged cell lines invented by Dr. Philip R. Johnson and has the
right to grant sublicenses under Licensed Patent Rights and to Licensed
Materials (the "AAV License Agreement");

     WHEREAS, the Parties are also parties to that certain Exclusive Sublicense
Agreement effective as of July 23, 1996 (the "Prior Agreement"), pursuant to
which Targeted is an exclusive sublicensee of the "Licensed Patent Rights" and
"Licensed Materials" in certain Fields of Use; and

     WHEREAS, the Parties desire to enter into this Agreement, pursuant to which
Alkermes will grant to Targeted an exclusive, worldwide license of the Licensed
Patents and Licensed Materials in all of the Fields of Use, terminate the Prior
Agreement and to enter into a related Common Stock and Warrants Issuance
Agreement of even date herewith ("Issuance Agreement"), pursuant to which
Targeted shall deliver to Alkermes shares of Targeted's common stock, par value
$0.01 per share ("Common Stock"), and warrants to acquire additional shares of
Common Stock in the future.

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

Section 1  Definitions

     1.1  "Additional Fields of Use" means the Fields of Use identified in
          subsections (b)-(j) of the definition of Fields of Use herein.

     1.2  "Affiliate" means any entity directly or indirectly controlling,
          controlled by, or under common control with, either Alkermes or
          Targeted.  For

[*]  Omitted, confidential material, which material has been separately filed
     with the Securities and Exchange Commission pursuant to a request for
     confidential treatment.

                                      -1-


          purposes of this definition, the term "control" shall mean the
          possession, direct or indirect, of the power to direct or cause the
          direction of the management and policies of an entity, whether through
          the ownership of at least 50% of the voting stock of such entity, by
          contract, or otherwise. Without limiting the generality of the
          foregoing, "Affiliate" shall include any research and development
          partnership in which Targeted or any of its Affiliates has an interest
          of 50% of more, or is the general partner, or any other funding entity
          that Targeted or any of its Affiliates controls.

     1.3  "Bankruptcy Event" means the Person in question becomes insolvent, or
          voluntary or involuntary proceedings by or against such Person are
          instituted in bankruptcy or under any insolvency law, or a receiver or
          custodian is appointed for such Person, or proceedings are instituted
          by or against such Person for corporate reorganization or the
          dissolution of such Person, which proceedings, if involuntary, shall
          not have been dismissed within sixty (60) days after the date of
          filing, or such Person makes an assignment for the benefit of
          creditors, or substantially all of the assets of such Person are
          seized or attached and not released within sixty (60) days thereafter.

     1.4  "FDA" means the United States Food and Drug Administration.

     1.5  "Fields of Use" means the following: (a) treatment and prevention of
          [*]; (b) treatment and prevention of [*]; (c) treatment of [*]; (d)
          treatment and prevention of [*]; (e) treatment and prevention of [*];
          (f) treatment and prevention of [*]; (g) [*]; (h) treatment and
          prevention of [*]; (i) treatment of [*]; (j) [*]; and (k) [*].

     1.6  "Licensed Patent Rights" means all of the following:

          (a)  U.S. Patent No. 5,658,785 issued August 19, 1997, U.S. Patent No.
               5,786,211 issued July 28, 1998, U.S. Patent No. 5,858,775 issued
               January 12, 1999, U.S. Patent Application Serial No. USSN
               09/012,132 filed January 22, 1998, and U.S. Patent Application
               (number to be assigned) filed April 15, 1999, "Adeno-Associated
               Virus Materials and Methods", invented by Philip R. Johnson;

          (b)  to the extent that the following contain one or more claims to
               the invention or inventions claimed in (a) above: divisions,
               continuations and continuations-in-part of (a) above, all
               divisions

[*] Confidential treatment requested

                                      -2-


               and continuations of these continuations-in-part, divisions and
               continuations, and any reissues, extensions or reexaminations of
               the foregoing patents;

          (c)  to the extent that the following contain one or more claims to
               the invention or inventions claimed in (a) above: all counterpart
               foreign applications and patents to (a) and (b) above;

          (d)  any other patent applications, including divisions,
               continuations, continuations-in-part, reissues, extensions,
               reexaminations and counterpart foreign applications thereof, that
               contain one or more claims to the invention or inventions claimed
               in (a) above or any improvements to such invention or inventions;
               and

          (e)  any patents issuing in respect of any of the applications,
               divisions, continuations, continuations-in-part, reissues,
               extensions, reexaminations and counterpart foreign applications
               referenced in clauses (a), (b), (c) and (d) above.

     1.7  "Licensed Materials" means the C12 adeno-associated virus packaging
          cell line developed by the Children's Hospital Research
          Foundation/Children's Hospital, Inc. and any improvements thereto.

     1.8  "Licensed Product(s)" means any product which cannot be manufactured,
          used or sold without utilizing Licensed Materials or which, in the
          course of manufacture, use or sale would, in the absence of this
          Agreement, infringe one or more issued claims of the Licensed Patent
          Rights that have not been held invalid or unenforceable by an
          unappealed or unappealable judgment of a court of competent
          jurisdiction or expired.

     1.9  "Net Sales" means the gross invoice prices received from customers on
          sales of Licensed Products by Targeted, its Affiliates, or
          Sublicensee(s) (as defined in Section 2.1 below), as applicable, less
          any customary discounts allowed and actually taken, sales and/or use
          tax, excise and similar taxes, import or export duties or their
          equivalent, outbound transportation prepaid or allowed, insurance, and
          amounts allowed or credited due to returns (not exceeding the original
          billing).  Transfer of a Licensed Product between Targeted and its
          Affiliates and/or Sublicensees for resale to end users shall not be
          used for the basis of computing royalties.

                                      -3-


     1.10  "Non-Therapeutic Field of Use" means the Field of Use identified in
           subsection (k) of the definition of Fields of Use herein.

     1.11  "Phase I Clinical Trial" means that portion of the FDA submission and
           approval process which provides for the first introduction into
           humans of a product with the purpose of determining human toxicity,
           metabolism, absorption, elimination and other pharmacological action
           as more fully defined in 21 C.F.R. (S) 312.21(a) or equivalent in a
           foreign country.

     1.12  "Phase II Clinical Trial" means that portion of the FDA submission
           and approval process which provides for the initial trials of product
           on a limited number of patients for the purpose of determining dose
           and evaluating safety and efficacy in the proposed therapeutic
           indication as more fully defined in 21 C.F.R. (S) 312.21(b) or
           equivalent in a foreign country. Phase I/II or equivalent in a
           foreign country will be considered a Phase I trial.

     1.13  "Phase III Clinical Trial" means that portion of the clinical
           development program which provides for continued trials of a product
           on sufficient numbers of patients to establish the safety and
           efficacy of a product and generate, if required, pharmacoeconomics
           data to support regulatory approval in the proposed therapeutic
           indication as more fully defined in 21 C.F.R. (S) 312.21(c) or
           equivalent in a foreign country.

     1.14  "Person" means an individual, a partnership, a corporation, limited
           liability company, an association, a joint stock company, a trust, a
           joint venture, any other form of business organization, an
           unincorporated organization, or a governmental entity (or any
           department, agency, or political subdivision thereof).

     1.15  "PLA" means a Product Licensing Application as that term is used in
           Title 21 of the Code of Federal Regulations or any other applicable
           FDA filing.

     1.16  "Prior Field of Use" means the Field of Use identified in subsection
           (a) of the definition of Fields of Use herein.

     1.17  "Regulatory Approval" means any approvals (including pricing and
           reimbursement approvals), licenses, registrations or authorizations
           of any federal, state or local regulatory agency, department, bureau
           or other

                                      -4-


           governmental entity, necessary for the manufacture and sale of a
           Licensed Product in a regulatory jurisdiction.

Section 2  Grant of License

     2.1   Grant of License to Targeted.  Subject to the terms and conditions of
           -----------------------------
           this Agreement, Alkermes hereby grants to Targeted: (a) a worldwide
           exclusive sublicense under Licensed Patent Rights and to Licensed
           Materials to make, have made, use, lease, have sold and sell Licensed
           Products in the Fields of Use; (b) the exclusive right to grant one
           or more sublicenses to its rights under Licensed Patent Rights and to
           Licensed Materials to make, have made, use, lease, have sold and sell
           Licensed Products in the Fields of Use (each such sublicense, a
           "Sublicense", the sublicensee thereunder, a "Sublicensee", and the
           agreement or contract pursuant to which a Sublicense is granted, a
           "Sublicense Agreement").

     2.2   Reserved Rights of Alkermes.  Alkermes reserves unto itself the
           ---------------------------
           personal, non-transferable right to make, have made, and use Licensed
           Product(s) and Licensed Material in the Fields of Use for internal
           research purposes only, and for no other purpose in the Fields of
           Use.

     2.3   Grant of License to Alkermes.  Automatically upon termination of this
           ----------------------------
           Agreement, Targeted hereby grants to Alkermes an exclusive, worldwide
           royalty-free license to make, have made, use and sell products under
           any patent rights owned by Targeted as of the date of such
           termination for improvements on the C12 cell line.

     2.4   Grant of Sublicenses at Option of Targeted. Any Sublicense granted by
           ------------------------------------------
           Targeted of its rights hereunder shall be subject to the terms of
           this Agreement and shall provide for the payment of royalties and
           other consideration by the Sublicensee as specified in Section 3
           below. Targeted shall be responsible for its Sublicensees and shall
           not grant any rights which are inconsistent with the rights granted
           to and obligations of Targeted hereunder. Any event, act or omission
           of a Sublicensee which would be a breach of this Agreement if
           performed by Targeted shall be deemed to be a breach by Targeted of
           this Agreement. Each Sublicense Agreement granted by Targeted shall
           include an audit right by Alkermes of the same scope as provided in
           Section 4 below with respect to Targeted. No Sublicense Agreement
           shall contain any provision which would be inconsistent with the
           terms of this Agreement

                                      -5-


           or the AAV License Agreement. Targeted shall give Alkermes prompt
           notification of the identity and address of each Sublicensee with
           whom it concludes a Sublicense Agreement and shall supply Alkermes
           with a copy of each such Sublicense Agreement. To the extent that any
           term or provision of any Sublicense Agreement is found to be
           inconsistent with the terms or provisions of this Agreement, Targeted
           shall use its best efforts to amend such Sublicense Agreement such
           that it is in compliance with the terms or provisions of this
           Agreement.

     2.5   AAV License Agreement. Targeted hereby acknowledges, on behalf of
           ---------------------
           itself, its Affiliates and any existing or future Sublicensee, that
           it is aware of the AAV License Agreement and the obligations of
           Alkermes under the AAV License Agreement. Targeted hereby further
           acknowledges and agrees, that, in the event Alkermes or Targeted
           shall become aware of any fact or circumstance related to this
           Agreement or any Sublicense Agreement which is inconsistent with the
           obligations of Alkermes under the AAV License Agreement, Alkermes and
           Targeted shall cooperate in good faith to amend this Agreement or any
           such Sublicense Agreement to insure that Alkermes shall be in
           compliance with the terms and provisions of the AAV License
           Agreement.

     2.6   Grant of Sublicenses at Option of Alkermes. At any time after the
           ------------------------------------------
           date which is the [*] anniversary of the Effective Date, Targeted
           shall, upon receipt of notice from Alkermes to such effect, enter
           into good faith negotiations to enter into a sublicense agreement
           with a proposed sublicensee designated by Alkermes in such notice,
           with respect to any of the Additional Fields of Use for which
           Targeted, its Affiliates or Sublicensee(s) have not initiated Phase I
           Clinical Trials; provided that entering into such negotiations is not
           inconsistent with obligations of Targeted to any Sublicensee. Such
           sublicense agreement, if entered into, shall be subject to Section
           2.4 above.

Section 3  Payments to Alkermes

     3.1  Issuance of Common Stock and Warrants.  Upon the execution of this
          -------------------------------------
          Agreement and in consideration of the grant of the license hereunder,
          Targeted and Alkermes shall enter into the Issuance Agreement in the
          form attached hereto as Exhibit A, pursuant to which Targeted shall
          issue and deliver to Alkermes 500,000 shares of Common Stock of
          Targeted (the "Shares") and two warrants to acquire an aggregate of up
          to 2,000,000 additional shares of Common Stock of Targeted (the

          [*] Confidential treatment requested

                                      -6-


          "Warrants"), in each case, subject to the terms and provisions of the
          Issuance Agreement and the warrants attached thereto.

     3.2  Milestone Payments.  Subject to Sections 3.2(c) and (d), Targeted
          ------------------
          shall pay Alkermes the aggregate of the amounts calculated in
          accordance with Sections 3.2(a)(i) or 3.2(a)(ii) below with respect to
          each Licensed Product whether such Licensed Product is developed by
          Targeted, its Affiliates or by any Sublicensee (the "Non Royalty
          Fees").  Whether Targeted shall pay to Alkermes the Non-Royalty Fees
          pursuant to Section 3.2(a)(i) or 3.2(a)(ii) shall be determined by
          Alkermes within twenty (20) days of (i) receipt by Alkermes of written
          notice from Targeted advising Alkermes that Targeted has initiated a
          Phase I Clinical Trial with respect to a Licensed Product being
          developed by Targeted or its Affiliates, and such other relevant
          information related to such Phase I Clinical Trial that Alkermes may
          reasonably request, or (ii) receipt by Alkermes from Targeted of a
          copy of a Sublicense Agreement entered into by Targeted pursuant to
          Section 2.4 above, and such other relevant information related to such
          Sublicense Agreement that Alkermes may reasonably request.

          (a)  Upon the election by Alkermes pursuant to Section 3.2 above,
               Targeted shall, within thirty (30) days of (x) receipt of Non-
               Royalty Fees from a Sublicensee pursuant to Section 3.2(a)(i)
               below or (y) the occurrence of each event described in Section
               3.2(a)(ii), pay Alkermes the following Non-Royalty Fees:

               (i)  [*] of any proceeds received by Targeted as consideration
                    pursuant to any Sublicense Agreement for each Licensed
                    Product, including without limitation, licensee fees,
                    milestone payments or other property deemed compensation
                    (but excluding research and development funding, royalties
                    and Common Stock purchases at market value) under such
                    Sublicense Agreement, such as any premium paid over the
                    market value of Common Stock in the event such Sublicense
                    Agreement incorporates an equity component; or

               (ii) Milestone payments in accordance with the following
                    schedules of events achieved by Targeted or a Sublicensee
                    for each Licensed Product related to any Additional Field of
                    Use and the Prior Field of Use, as the case may be:

          [*] Confidential treatment requested

                                      -7-


                    (A)  With respect to any Licensed Product in any Additional
                         Field of Use:


- --------------------------------------------------------------------------------------------
                                                                        Milestone
       Event                                                            Payment
- --------------------------------------------------------------------------------------------
                                                                     
  1.   Completion of first Phase I Clinical Trial                       $  [*]
- --------------------------------------------------------------------------------------------
  2.   Completion of first Phase II Clinical Trial                         [*]
- --------------------------------------------------------------------------------------------
  3.   Completion of first Phase III Clinical Trial                        [*]
- --------------------------------------------------------------------------------------------
  4.   Completion of first Phase III Clinical Trial for which              [*]
       payment not made pursuant item 2 above
- --------------------------------------------------------------------------------------------
  5.   First filing of PLA with the FDA (or comparable filing with a       [*]
       foreign agency, if first)
- --------------------------------------------------------------------------------------------
  6.   First approval of a PLA by the FDA (or comparable approval of       [*]
       a foreign agency, if first)
- --------------------------------------------------------------------------------------------
       Total:                                                           $  [*]
- --------------------------------------------------------------------------------------------


                    (B)  With respect to any Licensed Product in the Prior Field
                         of Use:


                                                                        Milestone
- --------------------------------------------------------------------------------------------
       Event                                                            Payment
- --------------------------------------------------------------------------------------------
                                                                  
  1.   Completion of first Phase I Clinical Trial                       $  [*]
- --------------------------------------------------------------------------------------------
  2.   Completion of first Phase II Clinical Trial                         [*]
- --------------------------------------------------------------------------------------------
  3.   Completion of first Phase III Clinical Trial                        [*]
- --------------------------------------------------------------------------------------------
  4.   Completion of first Phase III Clinical Trial for which              [*]
       payment not made pursuant item 2 above
- --------------------------------------------------------------------------------------------
  5.   First filing of PLA with the FDA (or comparable filing with a       [*]
       foreign agency, if first)
- --------------------------------------------------------------------------------------------
       Total:                                                           $  [*]
- --------------------------------------------------------------------------------------------


          (b)  Notwithstanding anything in this Section 3 to the contrary, the
               Parties agree and acknowledge that Targeted is obligated to pay
               Alkermes, with respect to each License Product developed by
               Targeted, its Affiliates or by any Sublicensee the greater of the
               aggregate Non-Royalty Fees calculated pursuant to Sections
               3.2(a)(i) and 3.2(a)(ii) above (each a "Non-Royalty Fee Payment

       [*] Confidential treatment requested

                                      -8-


               Option").  The Parties agree that to assist Alkermes in the
               determination of which Non-Royalty Fee Payment Option shall
               result in greater Non-Royalty Fees to Alkermes, Targeted shall,
               on an annual basis and with respect to each Licensed Product,
               beginning one (1) year following receipt by Alkermes of the
               initial payment pursuant to this Section 3.2 with respect to each
               Licensed Product, deliver to Alkermes a written status report
               with respect to such Licensed Product (each a "Status Report").
               Each Status Report shall contain sufficient information to enable
               Alkermes to calculate the Non-Royalty Fee that Alkermes would be
               entitled to receive with respect to the applicable Licensed
               Product pursuant to each Non-Royalty Fee Payment Option.  The
               Parties further agree that, upon receipt of such Status Report
               with respect to each Licensed Product, Alkermes may, upon due
               notice to and prior consultation with Targeted, require Targeted
               to pay to Alkermes the Non-Royalty Fees payable pursuant to the
               Non-Royalty Fee Payment Option which would, in the aggregate,
               yield to Alkermes greater Non-Royalty Fees with respect to such
               Licensed Product; provided, however, that if Alkermes shall
               exercise its right pursuant to this Section 3.2(b) to receive
               Non-Royalty Fees pursuant to Section 3.2(a)(i) or 3.2(a)(ii), all
               amounts received by Alkermes under the previously applicable Non-
               Royalty Fee Payment Option shall be credited to the newly
               selected Non-Royalty Fee Payment Option.

          (c)  The payment schedule set forth in Sections 3.2(a)(i) and
               3.2(a)(ii) shall apply to the first product to be developed in
               each of the Additional Fields of Use and to receive approval of a
               PLA by the FDA (or comparable filing with a foreign agency, if
               first) (each such product, the "First Product").  In no event
               shall the aggregate payments under this Section 3.2 for each
               First Product be less than $[*].

          (d)  With respect to any product in each of the Additional Fields of
               Use which is not the First Product, and only after a First
               Product is identified (each such product, an "Additional
               Product"), the payments made pursuant to Sections 3.2(a) and (b)
               shall be reduced by [*] so long as the First Product is being
               marketed and has generated royalties to Alkermes in excess of
               $[*] in the twelve-month period preceding the scheduled payment
               pursuant to Sections 3.2(a) and (b) with respect to an Additional
               Product.

          [*] Confidential treatment requested

                                      -9-


     3.3  Royalties; Other Payments
          -------------------------

          (a)  For the rights, privileges and license granted hereunder,
               Targeted shall pay royalties to Alkermes in the manner
               hereinafter provided to the end of the term of the Licensed
               Patent Rights on a country-by-country basis or until this
               Agreement shall be terminated as hereinafter provided, whichever
               occurs first.  Subject to Section 3.3(a)(iv) below:

               (i)  With respect to any Licensed Product in any Additional Field
                    of Use, Targeted agrees to pay to Alkermes a royalty of [*]
                    on the amount of annual Net Sales of Licensed Products
                    related to any of the Additional Fields of Use that is less
                    than or equal to [*] and a royalty of [*] on the amount of
                    annual Net Sales of Licensed Products related to any of the
                    Additional Fields of Use that exceeds [*].

               (ii) With respect to any Licensed Product in the Non-Therapeutic
                    Field of Use, Targeted agrees to pay to Alkermes:

                    (A)  A royalty of [*] on the amount of annual Net Sales of
                         Licensed Products from sales by Targeted or its
                         Affiliates (but not Sublicensees) of Licensed Products
                         related to the Non-Therapeutic Field of Use that is
                         less than or equal to [*] and a royalty of [*] on the
                         amount of annual Net Sales of Licensed Products on
                         sales by Targeted or its Affiliates (but not
                         Sublicensees) of Licensed Products related to the Non-
                         Therapeutic Field of Use that exceeds [*]; and

                    (B)  [*] of any proceeds received by Targeted from
                         Sublicensees from sales by such Sublicensees (but not
                         Targeted or its Affiliates) of Licensed Products
                         related to the Non-Therapeutic Field of Use, including
                         without limitation, licensee fees, milestone payments
                         or other property deemed compensation (but excluding
                         research and development funding, royalties and Common
                         Stock purchases at market value), such as any premium

          [*] Confidential treatment requested

                                      -10-


                         paid over the market value of Common Stock in the event
                         the applicable arrangement incorporates an equity
                         component.

               (iii)  With respect to any Licensed Product in the Prior Field of
                      Use, Targeted agrees to pay to Alkermes a royalty of [*]
                      on the amount of annual Net Sales of Licensed Products
                      related to the Prior Field of Use that is less than or
                      equal to [*] and a royalty of [*] on the amount of annual
                      Net Sales of Licensed Products related to the Prior Field
                      of Use that exceeds [*].

               (iv)   For sales in any country in which no Licensed Patent
                      Rights exist, such royalty shall be reduced [*] on the
                      amount of annual Net Sales of Licensed Products
                      incorporating, based upon or made by employing the
                      Licensed Material or the technology described in the
                      Licensed Patent Rights.

          (b)  Notwithstanding Section 3.3(a) above, if Targeted is required to
               pay royalties to non-Affiliates for sale of any Licensed Product
               for which payments are also due to Alkermes ("Third Party
               Royalties"), then the amount of royalties to be paid by Targeted
               to Alkermes shall be reduced by the amount that the sum of
               royalties for such Licensed Product to be paid to Alkermes and
               Third Party Royalties for such Licensed Product, collectively,
               exceeds [*] of Net Sales of Licensed Products, but in no event
               shall Alkermes' royalty percentage be reduced to less than [*] of
               Net Sales for such Licensed Product.

          (c)  No multiple royalties shall be payable because any Licensed
               Product, its manufacture, use, lease or sale is or shall be
               covered by multiple claims or more than one Licensed Patent Right
               licensed under this Agreement.

          (d)  Royalty payments due pursuant to Section 3.3(a) above, shall be
               calculated quarterly for the three (3) month periods ending March
               31, June 30, September 30 and December 31 of each calendar year
               and shall be due and payable by Targeted within forty five (45)
               days of the end of each calendar quarter (that is on or before

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                                      -11-


               May 15, August 14, November 15 and February 14 in each calendar
               year).

          (e)  All monies due to Alkermes hereunder shall be paid in United
               States Dollars by bank wire transfer in immediately available
               funds to the account designated by Alkermes.  Targeted shall be
               responsible for making the payment to Alkermes.  The rate of
               exchange to be used in computing the amount of currency
               equivalent to United States Dollars due to Alkermes shall be made
               at the rate of exchange at Chase Manhattan Bank for the three (3)
               month trailing average for the calendar quarter for which payment
               is due.  All payments hereunder shall be made net of any
               withholding taxes, duties, levies, fees or charges required to be
               withheld under the law, on behalf of Alkermes.  Targeted shall
               make any withholding payments due on behalf of Alkermes and shall
               promptly provide Alkermes with written documentation of any such
               payment sufficient to satisfy any requirements of the United
               States Internal Revenue Service related to an application by
               Alkermes for a foreign tax credit for such payment.  Targeted
               agrees to take reasonable and lawful steps as Alkermes may
               request to minimize the amount of tax to which payments to
               Alkermes are subject, if such steps are not detrimental to
               Targeted.

Section 4  Record Keeping and Reports

     4.1  Records.  Targeted shall keep accurate records in sufficient detail to
          -------
          enable the royalties payable by Targeted to Alkermes hereunder to be
          determined, and shall permit said records to be examined from time to
          time during the life of this Agreement and for one (1) year after the
          expiration and termination of this Agreement, at reasonable intervals
          (but not more than once per calendar year) by an independent auditor
          designated by Alkermes and reasonably acceptable to Targeted (the
          "Auditor"), during normal business hours, and to the extent necessary
          to verify the reports and payments required hereunder.  The Auditor
          shall only disclose to Alkermes whether or not royalties payable
          hereunder have been accurately computed and paid, and no other
          information.  In the event any such audit reveals an underpayment,
          Targeted shall promptly remit the deficiency to Alkermes.  In the
          event any such audit reveals an overpayment, the excess shall be
          credited against any further payments due to Alkermes hereunder.

                                      -12-


     4.2  Reports.  Targeted shall furnish to Alkermes quarterly written
          -------
          reports, which shall be delivered to Alkermes together with the
          royalty payments pursuant to Section 3.3(d) (each such report, a
          "Report") setting forth separately by Licensed Product or other
          identifying designation, the total number of Licensed Products
          theretofore made and sold hereunder during the preceding calendar
          quarter and the royalties due thereon.  Each such Report shall be
          accompanied by a copy of any Sublicensee's Report received subsequent
          to Targeted's prior Report and prior to Targeted's current Report.

     4.3  Confidentiality.  Alkermes shall maintain in confidence, and shall not
          ---------------
          disclose to any Person or use for any purpose not expressly authorized
          by this Agreement, any information provided to Alkermes and/or the
          Auditor pursuant to this Section 4 and Section 6. Alkermes shall
          obtain written agreement from the Auditor, for Targeted's benefit, to
          be bound by the foregoing confidentiality obligation.  Such
          confidentiality obligation shall survive any termination or expiration
          of this Agreement.  Notwithstanding the foregoing, the confidentiality
          obligation shall not extend to the disclosure of data, documents or
          information to judicial, governmental or other official agencies, or
          in accordance with common practice, to the extent that such disclosure
          is required by any applicable securities laws or self regulatory
          agencies.

Section 5 Patent Rights

     5.1  Patent Prosecution.  Subject to the rights of Children's Hospital
          ------------------
          pursuant to the AAV License Agreement to prepare, file and prosecute
          patent applications related to the Licensed Patent Rights made solely
          by the employees of Children's Hospital, Targeted shall, in the first
          instance, have the sole and exclusive right to file any and all patent
          applications, both foreign and domestic, in the Licensed Patent Rights
          falling within the scope of this Agreement, and Targeted shall be
          responsible for all costs, fees and expenses incurred in connection
          with the filing, prosecution and maintenance of any such patent
          application and the maintenance of any patent issuing thereon.  Any
          such patent shall be included within this Agreement as part of the
          Licensed Patent Rights.

     5.2  Notice of Patents.  Targeted shall notify Alkermes of the issuance of
          -----------------
          any Licensed Patent Rights, and any expiration, lapse, revocation,
          surrender, invalidation or abandonment of any Licensed Patent Rights.

                                      -13-


     5.3  Alkermes' Right to Prosecute Patents.  If, at any time during the term
          ------------------------------------
          of this Agreement, Targeted elects not to file a patent application or
          to abandon any pending patent application or any patent issued
          thereon, either foreign or domestic, in the Licensed Patent Rights it
          shall notify Alkermes of that decision at least two (2) months prior
          to any deadline for filing any response or taking any other action
          necessary to file or maintain any such application and/or patent in
          existence.  Thereafter, Alkermes shall have the right and option to
          participate in the filing or prosecution of any such patent
          application and/or the maintenance of any such patent, at Alkermes'
          expense.

     5.4  Patent Prosecution after Bankruptcy Event or Termination.
          ---------------------------------------------------------
          Notwithstanding anything herein to the contrary and subject to the
          provisions of the AAV License Agreement, in the event Targeted shall
          become subject to a Bankruptcy Event or upon termination of this
          Agreement, all rights granted or deemed granted to Targeted under this
          Section 5 shall immediately terminate and Alkermes shall thereafter
          have the sole and exclusive right to file any and all patent
          applications, both foreign and domestic, in the Licensed Patent Rights
          falling within the scope of this Agreement.

Section 6 Due Diligence

     6.1  Targeted, during the entire term of this Agreement, shall utilize
          commercially reasonable efforts in proceeding with the development,
          manufacture, sale and commercial exploitation of Licensed Product(s),
          and in creating a supply and demand for same; provided, however, that
          Targeted shall be entitled to exercise prudent business judgment in
          meeting its reasonable diligence obligations hereunder.

     6.2  Targeted agrees to keep Alkermes informed of its progress on the
          commercial exploitation of Licensed Product(s) hereunder by annual
          reports due within sixty (60) days following the end of each calendar
          year.

Section 7  Patent Marking

     7.1  Targeted shall mark, and shall require its Sublicensee(s) to mark,
          each Licensed Product made and sold by it or by them with an
          appropriate patent marking identifying the pendency of any U.S.
          application and/or any issued U.S. or foreign patent forming any part
          of Licensed Patent Rights.

                                      -14-


Section 8 Term and Termination

     8.1  Term.  This Agreement, and the rights, privileges and license granted
          ----
          herein, shall be in force from the Effective Date hereof and shall
          remain in full force and effect thereafter until the last to expire of
          Licensed Patent Rights unless sooner terminated in accordance with the
          provision set forth herein below.

     8.2  Termination by Targeted.  Targeted may terminate this Agreement and
          -----------------------
          concomitant future obligations upon thirty (30) days written notice to
          Alkermes.

     8.3  Termination by Alkermes.
          -----------------------

               (a)  If Targeted shall cease to carry on its business, this
                    Agreement shall terminate upon notice by Alkermes.

               (b)  Should Targeted fail to make any payment whatsoever due and
                    payable to Alkermes hereunder, Alkermes shall have the right
                    to terminate this Agreement effective on thirty (30) days
                    written notice, unless Targeted shall make all such payments
                    to Alkermes within said thirty (30) day period.  Upon the
                    expiration of such thirty (30) day period, if Targeted shall
                    not have made all such payments to Alkermes, the rights,
                    privileges and license granted hereunder shall automatically
                    terminate.

     8.4  Material Breach.  Upon any material breach or default of this
          ---------------
          Agreement by Targeted other than those occurrences set out in Section
          8.3 above, Alkermes shall have the right to terminate this Agreement
          and the rights, privileges and license granted hereunder effective on
          sixty (60) days written notice to Targeted.  Such termination shall
          become automatically effective unless Targeted shall have cured any
          such material breach or default prior to the expiration of such sixty
          (60) day period.  In the event that Alkermes asserts a breach of this
          Agreement under Section 6.1, this Agreement shall remain in full force
          and effect until the matter is resolved by the parties themselves or
          under arbitration as provided for under Section 18.

     8.5  AAV License Agreement.  This Agreement, and the rights, privileges and
          ---------------------
          licenses granted herein, shall terminate automatically upon the
          termination of the AAV License Agreement for any reason whatsoever.

                                      -15-


     8.6   Survival.  In the event that this Agreement is terminated in
           ---------
           accordance with Section 8.2 or Section 8.3 or Section 8.4, the
           obligation of Targeted pursuant to Section 2.3 and of Targeted to
           deliver the Shares, the shares of Common Stock issuable upon the
           exercise of the Warrants, and the Issuance Agreement shall survive.
           In addition, Sections 4 and 15 shall survive expiration or
           termination of this Agreement for any reason. The Parties understand
           and agree that Targeted's obligation to pay royalties to Alkermes
           under this Agreement shall terminate in the event of a judicial
           determination by a decision of a tribunal of competent authority,
           where such decision is final or by lapse of time becomes final and
           unappealable, that no portion of the Licensed Patent Rights are valid
           and/or enforceable.

Section 9  Disposition of Licensed Products On Hand Upon Termination

     9.1   In the event of any termination of this Agreement, Targeted and its
           Sublicensees shall have the right to use or sell all the Licensed
           Products on hand at the time of such termination, provided that
           Targeted shall be obligated to pay to Alkermes a royalty on such
           sales as set forth in this Agreement if, at that time, there remains
           in existence any of Licensed Patent Rights covering the manufacture,
           use or sale of such Licensed Product(s).

Section 10 Patent Enforcement

     10.1  AAV License Agreement.  The Parties hereby acknowledge that under AAV
           ---------------------
           License Agreement, Alkermes has the affirmative obligation to inform
           the Children's Hospital of any infringement of any Licensed Patent
           Rights.  Accordingly, each Party will promptly notify the other Party
           of any infringement or possible infringement of any of the Licensed
           Patent Rights or Licensed Materials. The Parties hereby further agree
           and acknowledge that under AAV License Agreement, Alkermes has the
           initial option to prosecute any such infringement, which option shall
           be assumed herein by Targeted.

     10.2  Defense of Licensed Patent Rights by Targeted.   If Alkermes shall
           ---------------------------------------------
           have supplied Targeted with written evidence demonstrating
           infringement of the Licensed Patent Rights by a third party, Alkermes
           may, by written notice, request Targeted to take steps to assert such
           Licensed Patent Rights against such infringing product. Targeted
           shall within ninety

                                      -16-


           (90) days of the receipt of such notice either (a) cause such
           infringement to terminate or (b) initiate and continue legal
           proceedings against the infringer, or pursue other equivalent legal
           or patent remedies. Alkermes shall cooperate with Targeted, at
           Targeted's expense, in connection with any such action. Such
           cooperation shall include (without limitation) Alkermes' permitting
           Targeted to bring the action in Alkermes' name and Alkermes'
           executing any consents or assignments necessary or useful to permit
           Targeted to enforce the Licensed Patent Rights against the infringer.

     10.3  Defense of Licensed Patent Rights by Alkermes.   In the event
           ----------------------------------------------
           Targeted fails to terminate the infringement within the ninety (90)
           days of written notification from Alkermes informing Targeted of an
           alleged infringement, and does not institute litigation against the
           infringer for that purpose within such period, then Alkermes shall
           have the right to bring an action against the infringer for that
           purpose.  Targeted shall cooperate fully with Alkermes, at Targeted's
           expense, in connection with any such action. Such cooperation shall
           include (without limitation) Targeted permitting Alkermes to bring
           the action in Targeted's name and Targeted's executing any consents
           or assignments necessary or useful to permit Alkermes to enforce the
           Licensed Patent Rights against the infringer.

     10.4  Patent Enforcement after Bankruptcy Event or Termination.
           ---------------------------------------------------------
           Notwithstanding anything herein to the contrary and subject to the
           AAV License Agreement, in the event Targeted shall become subject to
           a Bankruptcy Event or upon termination of this Agreement, all rights
           granted or deemed granted to Targeted under this Section 10 shall
           immediately terminate and Alkermes shall thereafter have the sole and
           exclusive right to assert the Licensed Patent Rights against any
           infringing product.

Section 11 Publicity

     11.1  The Parties agree that neither Party will use the name of the other
           Party, or any abbreviation thereof, expressly or by implication, or
           disclose the existence or nature of this Agreement, in any news,
           publicity release, advertisement or other public disclosure, without
           the express prior written approval of the other Party, such approval
           not to be unreasonably withheld.  Notwithstanding the foregoing, each
           Party hereby consents to references to it (a) in such reports or
           documents sent

                                      -17-


           to stockholders or filed with or submitted to any governmental
           regulatory agencies or bodies or stock exchanges or as may be
           required to obtain investment capital, or (b) pursuant to any
           requirements of applicable law or governmental regulations, provided
           that, in the event of any such disclosure, the Party making such
           disclosure shall afford the other party the prior opportunity to
           review the text of such disclosure, the other party shall promptly
           respond to the disclosing party, and the disclosing Party shall use
           its best efforts to comply with any reasonable requests by the other
           party regarding changes. The Parties agree that an announcement or
           press release relating to this Agreement will be made, and that they
           will coordinate such announcement or press release so that, to the
           extent both Parties intend to make such announcement or press
           release, such announcement or press release can be made
           contemporaneously by each Party.

Section 12 Waiver

     12.1  No omission or delay of either party hereto in requiring due and
           punctual fulfillment of the obligations of the other party hereto
           shall be deemed to constitute a waiver by such party of its rights to
           require such due and punctual fulfillment, or of any other of its
           remedies hereunder.

Section 13 Warranties

     13.1  Representations and Warranties by Alkermes.  Alkermes represents and
           ------------------------------------------
           warrants that:

           (a)  the execution and delivery of this Agreement and the performance
                of the transactions contemplated hereby have been duly
                authorized by all appropriate Alkermes corporate action;

          (b)   this Agreement is a legal and valid obligation binding upon
                Alkermes and enforceable in accordance with its terms, and the
                execution, delivery and performance of the Agreement by Alkermes
                does not conflict with any agreement, instrument or
                understanding, oral or written, to which it is a party or by
                which it is bound, nor violate any law or regulation of any
                court, governmental body or administrative or other agency
                having jurisdiction over it;

          (c)   Alkermes has the lawful right to grant the sublicense set forth
                herein; and

                                      -18-


         (d)   to the best of Alkermes' knowledge, Alkermes is the exclusive
               licensee of the Children's Hospital Research
               Foundation/Children's Hospital, Inc. in respect of the Licensed
               Patent Rights and the Licensed Materials in all fields and that
               neither Alkermes nor to the best of Alkermes' knowledge, the
               Children's Hospital has granted any licenses, sublicenses, or
               other rights in respect of the Licensed Patent Rights or the
               Licensed Materials in the Fields of Use.

    13.2  Limitations on Warranties of Alkermes.
          -------------------------------------

          (a)  ALKERMES MAKES NO EXPRESS OR IMPLIED WARRANTIES OF
               MERCHANTABILITY OR FITNESS OF THE LICENSED PRODUCTS FOR ANY
               PARTICULAR PURPOSE.

          (b)  Nothing in this Agreement shall be construed as: (i) a warranty
               or representation by Alkermes as to the patentability, validity
               or scope of any of the Licensed Patent Rights; (ii) except as
               provided in Section 13.1, 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 patents or proprietary rights of third parties;
               or (iii) an obligation to bring or prosecute actions or suits
               against third parties for infringement.

    13.3  Representations and Warranties of Targeted.  Targeted represents and
          ------------------------------------------
          warrants that:

          (a)  the execution and delivery of this Agreement and the performance
               of the transactions contemplated hereby have been duly
               authorized by all appropriate Targeted corporate action; and

          (b)  this Agreement is a legal and valid obligation binding upon
               Targeted and enforceable in accordance with its terms; the
               execution, delivery and performance of the Agreement by Targeted
               does not conflict with any agreement, instrument or
               understanding, oral or written, to which it is a party or by
               which it is bound, nor violate any law or regulation of any
               court, governmental body or administrative or other agency
               having jurisdiction over it.

                                      -19-


Section 14  Succession and Assignability

      14.1  This Agreement and the rights and benefits conferred upon Targeted
            hereunder may not be assigned nor transferred by Targeted without
            the prior written consent of Alkermes, except in the event of sale
            of all or a portion of the business of Targeted, in which event
            Targeted, upon written notification to Alkermes, may assign this
            Agreement to a wholly owned subsidiary or to a purchaser of
            substantially all of its assets relating to the subject matter of
            the Agreement.

      14.2  This Agreement shall be binding upon and inure to the benefit of the
            successors, representatives and assigns of the parties hereto.

Section 15  Indemnity

      15.1  Targeted agrees to indemnify, hold harmless and defend Alkermes, its
            officers, employees and agents, against any and all claims, suits,
            losses, damages, costs, fees and expenses, including reasonable
            attorneys' fees, resulting from or arising out of Targeted's
            exercise of its rights granted under this Agreement including, but
            not limited to, product liability, any damages, losses or
            liabilities whatsoever with respect to death or injury to any person
            and damage to any property arising from the production, manufacture,
            sale, lease, consumption, advertisement, possession, user or
            operation of Licensed Products by Targeted its Affiliates or its
            Sublicensees or their customers in any manner whatsoever.

      15.2  Alkermes agrees to indemnify, hold harmless and defend Targeted and
            its officers, employees and agents against any and all claims,
            suits, losses, damages, costs, fees and expenses, including
            reasonable attorneys' fees, resulting from or arising out of
            Alkermes' grant of the Sublicense granted under this Agreement
            including, but not limited to, any amounts payable by Alkermes to
            its licensor(s) of the Licensed Patent Rights or the Licensed
            Materials or other persons or entities having rights in respect of
            the Licensed Patent Rights or the Licensed Materials.

      15.3  In the event of any claim for which indemnification will be sought
            pursuant to Section 15.1 or 15.2, the indemnified party will give
            the indemnifying party prompt written notice of such claim. The
            indemnifying party shall have the sole right to control the defense
            and settlement of any such claim and shall not be liable for any
            settlement that the indemnifying party does not approve in writing
            in advance. The

                                      -20-


            indemnified party will cooperate fully with the indemnifying party,
            at the indemnifying party's expense, in connection with the defense
            and settlement of any such claim.

      15.4  Prior to entering clinical trials, Targeted further agrees to obtain
            and maintain in force a comprehensive or commercial form general
            liability insurance policy supporting its obligations under Section
            15.1.  This insurance shall provide Alkermes with insurance coverage
            that is commensurate with the insurance coverage that Alkermes would
            have otherwise been provided had Alkermes been named as additional
            insured on the Targeted's comprehensive general liability insurance,
            and provided for prior notice to Alkermes before cancellation. The
            limits of such insurance shall be commercially reasonable amounts
            for personal injury or death, and for property damage. Upon request,
            Targeted shall provide Alkermes with Certificates of Insurance
            evidencing the same.

Section 16  Notices

     16.1  Any payment, notice or other communication required or permitted to
           be given by either party hereto shall be deemed to have been properly
           given and be effective on the date of delivery if delivered, in
           writing, in person, by facsimile, by overnight mail or by first class
           certified mail with postage prepaid and return receipt requested to
           the respective address set forth below, or to such other address as
           either party shall designate by written notice given to the other
           party:

           In the case of Alkermes:


               Alkermes, Inc.
               64 Sidney Street
               Cambridge, MA  02139
               Telephone No. 617-494-0171
               Fax No. 617-494-9255 Attn:  Chief Financial Officer

           In the case of Targeted:


               Targeted Genetics Corporation
               1100 Olive Way, Suite 100
               Seattle, WA  98101
               Telephone No. 206-623-7612

                                      -21-


                Fax No. 206-623-7064
                Attn:  President

Section 17  Arbitration; Applicable Law

      17.1  Arbitration.  All disputes that may arise, including, but not
            -----------
            limited to, disputes arising under Article 6.1, in connection with
            this Agreement and that are not resolved by the Parties shall be
            submitted to binding arbitration under the commercial rules and
            regulations then in effect under the American Arbitration
            Association rules relating to voluntary arbitrations. All costs of
            arbitration shall be divided equally between the Parties. The award
            shall be binding and conclusive on each of the Parties, and it may
            be enforced by the prevailing Party runs in any court of competent
            jurisdiction.

      17.2  Applicable Law.  In the event of any arbitration as provided in
            --------------
            Section 18.1 above, (i) the venue for the arbitration shall lie
            exclusively in the state and county of the principal executive
            offices of the Party against whom the arbitration is initiated, and
            (ii) the law governing this Agreement for purposes of the
            arbitration shall be the law of the state of the principal executive
            offices of the Party against whom the arbitration is initiated .

Section 18  Miscellaneous

      18.1  Headings.  The headings of the sections of this Agreement are
            --------
            inserted for convenience and reference only and are not intended to
            be a part of or to affect the meaning or interpretation of this
            Agreement.

      18.2  Effective Date.  This Agreement will not be binding upon the Parties
            --------------
            until it has been signed by, or on behalf of, each Party, in which
            event it shall be effective as of the Effective Date.

      18.3  Amendments.  No amendment or modification of this Agreement shall be
            ----------
            valid or binding upon the Parties unless made in writing and signed
            by each Party.

      18.4  Merger.  This Agreement embodies the entire understanding of the
            -------
            Parties and supersedes all previous communications, representations
            or understandings, either oral or written, including the Prior
            Agreement, between the Parties relating to the subject matter
            hereof.

                                      -22-


      18.5  Severability.  If any provision, or provisions, of this Agreement
            ------------
            shall be held to be invalid, illegal or unenforceable, the validity,
            legality and enforceability of the remaining provisions shall not be
            in any way affected or impaired thereby.

      18.6  Counterparts.  This Agreement, may be executed in counterparts by
            ------------
            the Parties duly authorize respective officers, which counterparts
            collectively shall be deemed a single contract.

                    [Signatures appear on following page.]

                                      -23-


     IN WITNESS WHEREOF, the parties have executed this Agreement through duly
authorized representatives as of the date first above written.

                              ALKERMES, INC



                              By  _________________________________
                                  Name: ___________________________
                                  Title: __________________________


                              TARGETED GENETICS CORPORATION



                              By  _________________________________
                                  Name: ___________________________
                                  Title: __________________________

                                      -24-