Exhibit 10.2

               PASTAN/FITZGERALD AND NEUROCRINE BIOSCIENCES, INC.
                            PATENT LICENSE AGREEMENT


PATENT  LICENSE  AGREEMENT  dated as of April 28,  1998,  between Ira Pastan and
David J. FitzGerald (collectively, "Licensor") and Neurocrine Biosciences, Inc.,
a California  corporation having an office at 3050 Science Park Road, San Diego,
California 92121 ("Licensee").

Licensor and Licensee agree as follows:


1.     DEFINITIONS

       1.01     "Affiliate" of either party to this Agreement  means any person,
                firm,  or  corporation  which  controls,  is controlled by or is
                under common  control with such party.  Control means either the
                direct or indirect  ownership  of forty eight  percent  (48%) or
                more of the voting stock of the subject entity.

       1.02     "Licensed  Patent Rights" means patent  applications and patents
                listed in Appendix A (together with all counterpart applications
                and  patents in other  countries,  if any),  all  divisions  and
                continuations  of these  applications,  all patents issuing from
                such  applications,   divisions,  and  continuations,   and  any
                reissues, reexaminations, and extensions of all such patents.

                For the avoidance of doubt,  counterpart patent applications and
                patents  in the  United  States  are not owned by  Licensor  and
                therefore are not included in Licensed Patent Rights.

       1.03     "Licensed  Product(s)"  means tangible  materials  which, in the
                course of manufacture, use or sale would, in the absence of this
                Agreement,  infringe one or more 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.

       1.04     "Licensed Territory" means all countries in the world, excluding
                 the United States.

       1.05     "Licensor Representative" means Dr. David FitzGerald, who is 
                 authorized to act on behalf of Licensor in connection with this
                 Agreement.

       1.06     "Net Sales" means the total gross receipts for sales of Licensed
                Products by or on behalf of Licensee or its sublicensee and from
                leasing,   renting,   or  otherwise  making  Licensed   Products
                available to others without sale or other dispositions,  whether
                invoiced or not, less returns and allowances  actually  granted,
                packing  costs,  insurance  costs,  freight out, taxes or excise
                duties  imposed on the  transaction  (if  separately  invoiced),
                wholesaler and cash discounts in amounts customary in the trade,
                credits,  chargebacks,  rebates or refunds  incurred  or granted
                pursuant to legal or  contractual  requirements.  No  deductions
                shall be made for commissions paid to individuals,  whether they
                be with  independent  sales  agencies or  regularly  employed by
                Licensee and on its payroll, or for the cost of collections. For
                the avoidance of doubt, sales of Licensed  Products,  whether or
                not  manufactured  in the  Licensed  Territory  pursuant  to the
                license  hereunder,  in the United  States (which is not part of
                the Licensed Territory) shall not give rise to Net Sales for all
                purposes of the Agreement.

       1.07     "First  Commercial  Sale"  means the  initial  transfer by or on
                behalf of Licensee of Licensed  Products in exchange for cash or
                some  equivalent  to which value can be assigned for the purpose
                of determining Net Sales.

       1.08     "Licensed  Fields of Use" means IL-4 conjugated with pseudomonas
                exotoxin for the therapeutic treatment of cancer.


2.    GRANT OF RIGHTS

       2.01     Licensor  hereby  grants and  Licensee  accepts,  subject to the
                terms and conditions of this Agreement,  an exclusive license to
                Licensee  under  the  Licensed  Patent  Rights  in the  Licensed
                Territory  to make and have made,  to use and have used,  and to
                sell and have sold any Licensed  Products in the Licensed Fields
                of Use.

       2.02     Licensee  shall  have  the  right  to  grant  sublicenses.   Any
                sublicenses   granted  by   Licensee   shall   provide  for  the
                termination  of the  sublicense,  or the conversion to a license
                directly between such sublicensee and Licensor, at the option of
                the  sublicensee,  upon  termination  of  this  Agreement.  Such
                conversion is subject to the approval of Licensor and contingent
                upon acceptance by the  sublicensee of the remaining  provisions
                of this Agreement.

       2.03     Licensor  hereby  grants  Licensee the exclusive  option,  for a
                period of two (2) years from the completion of Phase II clinical
                trials,  to  obtain  an  exclusive  license  to  the  use of the
                Licensed  Patent  Rights for IL-4  conjugated  with  pseudomonas
                exotoxin in all therapeutic applications outside of the Licensed
                Fields  of Use.  In the event  that  Licensee  provides  written
                notice to Licensor of its desire to exercise such an option, the
                parties shall meet and negotiate in good faith the terms of such
                a license.  If the  parties  cannot  agree upon the terms of the
                license   within   ninety   (90)  days   after   entering   such
                negotiations,  Licensor  shall be free to license such  Licensed
                Patent Rights to a third party upon terms no more favorable than
                those last offered to Licensee.

       2.04     This  Agreement  confers no  license  or rights by  implication,
                estoppel,  or otherwise under any patent applications or patents
                of Licensor other than the Licensed Patent Rights  regardless of
                whether  such patents are  dominant or  subordinate  to Licensed
                Patent Rights.


3.     ROYALTIES AND REIMBURSEMENT

       3.01     Licensee  agrees to pay to Licensor a license  issue royalty and
                certain  milestone  payments  as set forth in  Appendix B within
                thirty  (30)  days from the date  that  this  Agreement  becomes
                effective or the applicable  milestone is achieved,  as the case
                may be.

       3.02     Licensee  agrees  to pay to  Licensor  a  nonrefundable  minimum
                annual  royalty as set forth in Appendix  B. The minimum  annual
                royalty  is due and  payable  on each  anniversary  of the  date
                hereof for a period not to exceed three (3) years.

       3.03     Licensee  agrees  to pay to  Licensor  earned  royalties  as set
                forth in Appendix B.

       3.04     Licensee agrees to pay to Licensor an option fee as set forth 
                in Appendix B for the second year of the exclusive option 
                outlined in Section 2.03.  Licensee will notify Licensor of its 
                intention to maintain  the option for the second year and will 
                pay the fee within  thirty (30) days of  completion of the first
                year of the exclusive option.

       3.05     A claim of a patent licensed under this Agreement shall cease to
                fall  within  the  Licensed  Patent  Rights  for the  purpose of
                computing the minimum annual royalty and earned royalty payments
                in any given  country on the  earliest  of the dates that a) the
                claim  has  been  abandoned  but not  continued,  b) the  patent
                expires,  c) the patent is no longer maintained by the Licensor,
                d) all claims of the Licensed Patent Rights have been held to be
                invalid  or  unenforceable  by  an  unappealed  or  unappealable
                decision of a court of competent  jurisdiction or administrative
                agency,  or e) it has been pending longer than the later of: (i)
                seven (7) years from the date of filing of the earliest asserted
                priority  patent  application;  or (ii) seven (7) years from the
                date of the request for examination in a country in which such a
                request is necessary.

       3.06     No multiple  royalties  shall be payable  because  any  Licensed
                Products or Licensed  Processes  are covered by more than one of
                the Licensed Patent Rights.

       3.07     In the event that Licensee elects to take a license under one or
                more patent rights of a third party in order to make, have made,
                use, or sell a Licensed  Product  within the  Licensed  Field of
                Use,  then Licensee  shall be entitled to reduce earned  royalty
                payments to  Licensor  under  Paragraph  3.03 by one half of the
                actual  amount  paid to such third  parties,  provided  that the
                royalty  payable to  Licensor  shall not be reduced to less than
                one half of the  amount  which  would  otherwise  be due in that
                calendar year.

       3.08     On sales of  Licensed  Products  by  Licensee  in other  than an
                arm's- length transaction, the value of the Net Sales attributed
                under this Article 3 to such a  transaction  shall be that which
                would have been received in an arm's-length  transaction,  based
                on sales of like  quantity and quality  products on or about the
                time of such  transaction.  The exclusive  license  hereunder is
                granted   to   Licensee   and   its   Affiliates.   Accordingly,
                inter-company  sales  among  them  will  not be  subject  to the
                imputed sales provision of this Paragraph.


4.     RECORD KEEPING

       4.01     Licensee agrees to keep accurate and correct records of Licensed
                Products made, used, or sold under this Agreement appropriate to
                determine  the amount of royalties  due  Licensor.  Such records
                shall be retained for at least [***] following a given reporting
                period. They shall be available during normal business hours for
                inspection  at the expense of Licensor by an accountant or other
                designated  auditor selected by Licensor for the sole purpose of
                verifying  reports and payments  hereunder.  The  accountant  or
                auditor shall only disclose to Licensor  information relating to
                the accuracy of reports and payments made under this  Agreement.
                If an inspection  shows an  underreporting  or  underpayment  in
                excess of five  percent  (5%) for any twelve (12) month  period,
                then  Licensee  shall  reimburse  Licensor  for the  cost of the
                inspection at the time Licensee pays the  unreported  royalties,
                including any late charges as required by Paragraph 5.06 of this
                Agreement.  All payments  required under this Paragraph shall be
                due  within  thirty  (30)  days of the  date  Licensor  provides
                Licensee notice of the payment due.


5.     REPORTS ON SALES AND PAYMENTS

       5.01     From the date of first commercial sale, Licensee shall submit to
                Licensor  within  sixty (60) days after  [***] a royalty  report
                setting forth for the  preceding  [***] period the amount of the
                Licensed  Products  sold by or on  behalf  of  Licensee  in each
                country within the Licensed  Territory,  the Net Sales,  and the
                amount of  royalty  accordingly  due.  With  each  such  royalty
                report,  Licensee shall submit  payment of the earned  royalties
                due.  If no  earned  royalties  are  due  to  Licensor  for  any
                reporting  period,  the written  report  shall be  certified  as
                correct by an authorized officer of Licensee and shall include a
                detailed  listing of all deductions made under Paragraph 1.06 to
                determine Net Sales made under Article 3 to determine  royalties
                due.

       5.02     Royalties  and all other  payments due under  Article 3 shall be
                paid in U.S. dollars, by wire transfer of funds to an account at
                a  commercial  bank in New  York  City or  Washington,  D.C.  as
                designated by the Licensor  Representative.  For conversion of a
                foreign currency to U.S.  Dollars,  the conversion rate shall be
                the rate quoted in the Wall  Street  Journal on the day that the
                payment is due (i.e., the last business day of the related [***]
                period).  Any loss of exchange,  value, taxes, or other expenses
                incurred in the transfer of conversion to U.S.  dollars shall be
                paid  entirely  by  Licensee.  The  royalty  report  required by
                Paragraph 5.01 of this  Agreement  shall be sent to the Licensor
                Representative,  at the  address for  notices  indicated  on the
                signature page hereof, concurrently with each such payment.


6.     PERFORMANCE

       6.01     Licensee shall use its reasonable  best efforts to introduce the
                Licensed   Products  into  the  commercial  market  as  soon  as
                practicable.


7.     INFRINGEMENT AND PATENT ENFORCEMENT

       7.01     Licensor  and  Licensee  agree to notify each other  promptly of
                each infringement or possible infringement, as well as any facts
                which may affect the validity,  scope, or  enforceability of the
                Licensed Patent Rights of which either Party becomes aware.

       7.02     If Licensor does not initiate legal action or otherwise abate an
                infringement  of the Licensed  Patent  Rights  within sixty (60)
                days of written notification to the Licensor Representative from
                Licensee  of  the  existence  of  a  substantial   infringement,
                Licensee  shall  have  the  right  (but not the  obligation)  to
                institute  infringement  litigation  against the  infringer.  If
                Licensee institutes such infringement  litigation within six (6)
                months,  Licensee  shall  be  entitled,  if  applicable,   to  a
                reduction in royalty rate as provided in Appendix B.

       7.03     In  the  event  that  a  declaratory  judgment  action  alleging
                invalidity of any of the Licensed Patent Rights shall be brought
                against  Licensor,  Licensor  agrees to notify  Licensee that an
                action alleging invalidity has been brought. Licensor represents
                that it will either commence legal action to defend against such
                a declaratory action alleging invalidity, or will allow Licensee
                to undertake such defense,  at its expense.  Licensee shall take
                no action to compel  Licensor  either to  initiate or to join in
                any such declaratory judgment action.  Should Licensor be made a
                party  to any  such  suit  by  motion  or any  other  action  of
                Licensee,  Licensee  shall  reimburse  Licensor  for any  costs,
                expenses,  or fees  which  Licensor  incurs  as a result  of its
                defending  against such motion or other action taken in response
                to the motion.


8.     NEGATION OF WARRANTIES AND INDEMNIFICATION

       8.01     Licensor  does not warrant the validity of the  Licensed  Patent
                Rights and makes no  representations  whatsoever  with regard to
                the scope of the Licensed  Patent  Rights,  or that the Licensed
                Patent Rights may be exploited without  infringing other patents
                or other intellectual property rights of third parties. However,
                Licensor  warrants that, as of the execution date hereof,  there
                are no patents or patent  applications  owned or  controlled  by
                Licensor,  other than those within the Licensed  Patent  Rights,
                which would  dominate the  manufacture,  use or sale of Licensed
                Products.

       8.02     LICENSOR   MAKE  NO   WARRANTIES,   EXPRESSED  OR  IMPLIED,   OR
                MERCHANTABILITY  OR  FITNESS  FOR A  PARTICULAR  PURPOSE  OF ANY
                SUBJECT  MATTER  DEFINED  BY THE CLAIMS OF THE  LICENSED  PATENT
                RIGHTS.

       8.03     Licensor does not represent  that it will commence legal actions
                against third parties infringing the Licensed Patent Rights.

       8.04     Licensee shall indemnify and hold Licensor,  its employees,  
                students, fellows,   agents  and  consultants  harmless  from 
                and  against  all liability,  demands, damages,  expenses, and 
                losses, including but not limited to death,  personal  injury, 
                illness,  or property  damage in connection with or arising out 
                of activities  performed  subsequent to the execution of the 
                Agreement directly related to a) the use by or on behalf of 
                Licensee,  its sublicensee,  directors,  or employees of any
                Licensed Patent Rights, or b) the design,  manufacture,  
                distribution, or use  of any  Licensed  Products  or  other  
                products  or  processes developed in  connection  with or 
                arising out of the  Licensed  Patent Rights.  For the  avoidance
                of doubt,  Licensee  shall be required to indemnify  Licensor
                and the other  specified  parties,  under  either clause (a) or 
                clause (b) above, only with respect to Licensed Products made or
                sold, or Licensed  Patent Rights  otherwise used, in each case
                by or on behalf of  Licensee  or its  Affiliates.  Licensee  
                agrees to maintain a liability  insurance program consistent 
                with sound business practice.

9.     TERMINATION AND MODIFICATION OF RIGHTS

       9.01     This Agreement is effective when signed by all parties and shall
                extend on a  country-by-country  basis to the  expiration of the
                last to expire  of the  Licensed  Patent  Rights  unless  sooner
                terminated as provided in this Article 9.

       9.02     In the event that Licensee is in default in the  performance  of
                any  material  obligations  under  this  Agreement,  and  if the
                default has not been remedied  within ninety (90) days after the
                date  of  notice  in  writing  of  such  default,  Licensor  may
                terminate this Agreement by written notice.

       9.03     At least  thirty  (30)  days  prior  to  filing  a  petition  in
                bankruptcy,  Licensee  must  inform  Licensor  in writing of its
                intention  to file  the  petition  in  bankruptcy  or of a third
                party's intention to file an involuntary petition in bankruptcy.

       9.04     In the event that Licensee becomes  insolvent,  files a petition
                in bankruptcy,  has such a petition filed against it, determines
                to file a petition in bankruptcy,  or receives notice of a third
                party's intention to file an involuntary petition in bankruptcy,
                Licensee   shall   immediately   notify   Licensor  in  writing.
                Thereafter,  Licensor  shall  have the right to  terminate  this
                Agreement by giving Licensee sixty (60) days written notice.

       9.05     Licensee  shall  have  a  unilateral  right  to  terminate  this
                Agreement  and/or its rights in any  country by giving  Licensor
                sixty (60) day's written notice to that effect.

       9.06     Within ninety (90) days of termination  of this Agreement  under
                this  Article 9 or  expiration  under  Paragraph  9.01,  a final
                report shall be submitted by Licensee.  Any royalty payments due
                to Licensor become  immediately due and payable upon termination
                or expiration of this Agreement. If this Agreement is terminated
                prior to expiration as contemplated in Paragraph 9.01,  Licensee
                shall return all Licensed  Products or other materials  included
                within  the  Licensed  Patent  Rights  to  Licensor  or  provide
                Licensor with certification of their destruction.

       9.07     Paragraphs 4.01, 5.02, 8.02 and 8.04 of this Agreement shall 
                survive termination of this Agreement.


10.    GENERAL PROVISIONS

       10.01    Neither  Party  may  waive  or  release  any  of its  rights  or
                interests in this  Agreement  except in writing.  The failure of
                either  party to  assert a right  hereunder  or to  insist  upon
                compliance  with any term or condition of this  Agreement  shall
                not  constitute a waiver of that right by such party or excuse a
                similar subsequent failure to perform any such term or condition
                by the other party.

       10.02    This  Agreement  constitutes  the entire  agreement  between the
                parties  relating to the subject  matter of the Licensed  Patent
                Rights, and all prior negotiations, representations, agreements,
                and  understandings  are  merged  into,   extinguished  by,  and
                completely expressed by this Agreement.

       10.03    The provisions of this Agreement are severable, and in the event
                that any provision of this  Agreement  shall be determined to be
                invalid or unenforceable under any controlling body of law, such
                determination  shall  not in any  way  affect  the  validity  of
                enforceability of the remaining provisions of this Agreement.

       10.04    If either party desires a modification  to this  Agreement,  the
                parties   shall,   upon   reasonable   notice  of  the  proposed
                modification  by the party  desiring the change,  confer in good
                faith to determine the  desirability  of such  modification.  No
                modification  will be  effective  until a written  amendment  is
                signed by the signatories to this Agreement or their designees.

       10.05    The  construction,  validity,  performance,  and  effect of this
                Agreement  shall be  governed  by Federal  law as applied by the
                Federal courts in the District of Columbia.

       10.06    All notices  required or  permitted by this  Agreement  shall be
                given by prepaid,  first class,  registered  or  certified  mail
                properly   addressed   to  the  other  party  (to  the  Licensor
                Representative,  in the  case of  notices  to  Licensor)  at the
                address  designated on the following  signature page, or to such
                other  address  as may be  designated  in  writing by such other
                party,  and shall be effective as of the date of the postmark of
                such notice.

       10.07    This Agreement  shall not be assigned by Licensee except a) with
                the prior written  consent of Licensor;  or b) as part of a sale
                or transfer  of  substantially  the entire  business of Licensee
                relating to operations  which concern this  Agreement.  Licensee
                shall notify  Licensor within ten (10) days of any assignment of
                this Agreement by Licensee.

       10.08    All Licensed  Products  manufactured  in, shipped to, or sold in
                the  Licensed  Territory  shall be marked in such a manner as to
                preserve Licensor patent rights therein.

       10.09    By entering into this  Agreement,  Licensor does not directly or
                indirectly  endorse  any product or service  provided,  or to be
                provided,  by Licensee whether directly or indirectly related to
                this  Agreement.  Licensee  shall not  state or imply  that this
                Agreement is an endorsement by Licensor. Additionally,  Licensee
                shall  not  use  the  names  of  Licensor  in  any  advertising,
                promotional,  or sales  literature  without  the  prior  written
                consent of Licensor.

       10.10    The parties agree to attempt to settle  amicably any controversy
                or claim  arising  under  this  Agreement  or a  breach  of this
                Agreement.  In this  regard,  if a dispute  arises  between  the
                parties  relating to the  interpretation  or performance of this
                Agreement  or the  grounds  for  the  termination  thereof,  the
                parties agree to hold a meeting,  attended by  individuals  with
                decision-making  authority  regarding the dispute, to attempt in
                good faith to  negotiate a  resolution  of the dispute  prior to
                pursuing other available remedies. If, within 30 days after such
                meeting,  the  parties  have  not  succeeded  in  negotiating  a
                resolution  of the dispute,  such dispute  shall be submitted to
                non-binding   arbitration   under  the  then  current  Licensing
                Agreement   Arbitration   Rules  of  the  American   Arbitration
                Association  ("AAA"),  with a  panel  of  three  arbitrators  in
                Chicago,  IL.  Such  arbitrators  shall be  selected  by  mutual
                agreement of the parties or,  failing such  agreement,  shall be
                selected according to the aforesaid AAA rules. The parties shall
                bear the costs of arbitration  equally  unless the  arbitrators,
                pursuant to their right, but not their  obligation,  require the
                non-prevailing  party to bear all or any unequal  portion of the
                prevailing  party's costs. The arbitrators will be instructed to
                prepare and deliver a written, reasoned opinion conferring their
                decision. The rights and obligations of the parties to arbitrate
                any dispute  relating to the  interpretation  or  performance of
                this Agreement or the grounds for the termination  thereof shall
                survive the  expiration or termination of this Agreement for any
                reason.

       10.11    [***].

                This  Paragraph  10.11 does not apply to any license  agreements
                executed  by  Licensor  prior  to the  effective  date  of  this
                Agreement.

       IN WITNESS WHEREOF,  the parties have executed this Agreement of the date
first above written.

Licensor:                                      Licensee:

Address of the Licensor Representative for notices:

/s/ David FitzGerald                       /s/ Gary Lyons
1202 Azalea Drive                              President and CEO
Rockville, MD  20850                           Neurocrine Biosciences, Inc.
                                               3050 Science Park Road
                                               San Diego, CA  92121
/s/ Ira Pastan







                  APPENDIX A - PATENTS AND PATENT APPLICATIONS
                              (as of April 7, 1995)


Country             Application No.             Filing Date            Status
                                                                        
Australia              80211/87                  09/22/87              Patent No. 618722 issued
Canada                 547,614                   09/23/87              Allowed
Denmark                2764/88                   09/22/87              Pending
Europe                 97113929.1                09/23/87              Patent No. 0261671 issued
Europe                 93113917.4                08/31/93              Divisional pending
Finland                891321                    09/22/87              Pending
Ireland                2552/87                   09/22/87              Pending; div. to be filed
Israel                 83971                     09/22/87              Patent No. 83971 issued
Israel                 105160                    03/24/93              Divisional pending
Japan                  505905/87                 09/22/87              Pending
Korea                  88-700570                 09/22/87              Pending
Norway                 882269                    09/22/87              Pending
New Zealand            221923                    09/23/87              Patent No. 221923 issued
Portugal               85777                     09/23/87              Patent No. 85777 issued
Taiwan                 76105894                  10/02/87              Patent No. 54275 issued
South Africa           87/7153                   09/23/87              Patent 87/7153 issued






                              APPENDIX B - PAYMENTS

Signing Fee
Licensee agrees to pay to Licensor a noncreditable,  nonrefundable license issue
fee in the amount of [***].

[***] Royalty
Licensee  agrees to pay Licensor a yearly  [***]  Royalty in the amount of [***]
the first year,  [***] the second year,  and [***] the third year  subsequent to
execution of the Agreement. [***].

Royalties on Net Sales
Licensee agrees to pay Licensor earned royalties on Net Sales as follows:  [***]
of Net Sales outside of the United States.

Milestone Payments
Licensee agrees to pay Licensor milestone payments as follows:

         [***]

Option Fee
In the event that  Licensee  elects to exercise its right to maintain the second
year of the exclusive  option  outlined in Section 2.03,  Licensee  shall notify
Licensor  within thirty (30) days of completion of the first year of the option.
Licensee agrees to pay Licensor [***] for the second year of the option.

Sublicensing Fee
Upon the first  sublicensing  of the  Licensed  Patent  Rights  in the  Licensed
Territory, Licensee shall pay to Licensor the sum of [***].

Share of Patent Prosecution Costs
[***]  incurred  subsequent to the date of this  Agreement  for the  prosecution
and/or  maintenance  of the  Licensed  Patent  Rights,  which  expenses  are not
otherwise reimbursed by a third party, [***].

Reduction of Royalty Rate During Infringement Litigation
If the Licensee has instituted an infringement litigation as provided in Section
7.02,  Licensee  shall be entitled  reduction  in royalty  rate of [***] for the
period of the infringement litigation.