Exhibit 10.1
                              PUBLIC HEALTH SERVICE

                       PATENT LICENSE AGREEMENT--EXCLUSIVE
                                   COVER PAGE


For PHS internal use only:

Patent License Number:     L-259-97/0

Serial Numbers of Licensed Patents:  A.) USPN 5,635,599 (=USSN 08/225,224); 
B.) USSN 08/722,258 (CIPofUSSN 08/225,224); C.) USPN 4,892,827(=USSN 06/911,227)
and D.) USPN5,720,720 [ = USSN 08/616,785 (FWC of 08/112,370)].

Licensee:  Neurocrine Biosciences, Inc., 3050 Science Park Road, San Diego, 
California 92121.

CRADA Number (if applicable):  N/A

Additional Remarks:  Foreign Patent rights to the '827 Patent reside with the
inventors.


This Patent  License  Agreement,  hereinafter  referred  to as the  "Agreement,"
consists of this Cover Page, an attached Agreement, a Signature Page, Appendix A
(List of  Patent(s)  or Patent  Application(s),  Appendix  B (Fields  of Use and
Territory),  Appendix  C  (Royalties),  Appendix D  (Modifications),  Appendix E
(Benchmarks),  Appendix F  (Commercial  Development  Plan) and  Appendix G ( PHS
Incurred Patent Prosecution Costs). The Parties to this Agreement are:

1) The National  Institutes of Health  ("NIH"),  the Centers for Disease Control
and Prevention ("CDC"), or the Food and Drug Administration ("FDA"), agencies of
the  United  States  Public  Health  Service  ("PHS"),   hereinafter  singly  or
collectively  referred to as "PHS",  within the  Department  of Health and Human
Services ("DHHS"); and

2) The  person,  corporation,  or  institution  identified  above  and/or on the
Signature Page,  having offices at the address  indicated on the Signature Page,
hereinafter referred to as "Licensee".







 PHS PATENT LICENSE AGREEMENT--EXCLUSIVE

PHS and Licensee agree as follows:

1.       BACKGROUND

1.01 In the  course  of  conducting  biomedical  and  behavioral  research,  PHS
investigators made inventions that may have commercial applicability.

1.02 By assignment of rights from PHS  employees and other  inventors,  DHHS, on
behalf of the  United  States  Government,  owns  intellectual  property  rights
claimed  in any  United  States  and  foreign  Patent  Applications  or  Patents
corresponding  to  the  assigned   inventions.   DHHS  also  owns  any  tangible
embodiments of these inventions actually reduced to practice by PHS.

1.03  The  Assistant  Secretary  for  Health  of DHHS has  delegated  to PHS the
authority  to enter into this  Agreement  for the  licensing  of rights to these
inventions under 35 U.S.C. 200-212, the Federal Technology Transfer Act of 1986,
15  U.S.C.   3710a,   and/or  the   regulations   governing   the  licensing  of
Government-owned inventions, 37 CFR Part 404.

1.04 PHS desires to transfer  these  inventions  to the private  sector  through
commercialization  licenses to facilitate the commercial development of products
and processes for public use and benefit.

1.05 Licensee  desires to acquire  commercialization  rights to certain of these
inventions in order to develop processes,  methods,  or marketable  products for
public use and benefit.

2.       DEFINITIONS

2.01 "Benchmarks" mean the performance milestones set forth in Appendix E.

2.02 "Commercial  Development Plan" means the written  commercialization plan is
attached  as  Appendix  F  and/or  is  attached  to  this  Agreement  and/or  is
incorporated by reference into this Agreement.

2.03 "Corporate Collaborator" means a non-affiliate third party to whom Licensee
has granted exclusive or non-exclusive  commercialization rights, to one or more
Licensed  Product(s) or Licensed  Process(es),  but not  including  exclusive or
non-exclusive  commercialization  rights to manufacture either Licensed Products
and/or Licensed Process(es).

2.04 "First Commercial Sale" means, subsequent to the regulatory approval in the
respective  country,  the  initial  transfer  by or on behalf of Licensee or its
sublicensees of Licensed  Products or the initial practice of a Licensed Process
by or on behalf of Licensee  or its  sublicensees  in exchange  for cash or some
equivalent  to which value can be assigned  for the purpose of  determining  Net
Sales.

2.05     "Government" means the Government of the United States of America.

"Licensed Fields of Use" means the fields of use identif~ed in Appendix B.



"Licensed Patent Rights" shall mean:

a) U.S. Patent  Applications and Patents listed in Appendix A, 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;

b) to the extent that the following  contain one or more claims  directed to the
invention or inventions  disclosed in a) above: i)  continuations-in-part  of a)
above; ii) all divisions and continuations of these continuations-in-part;  iii)
all   Patents   issuing   from  such   continuations-in-part,   divisions,   and
continuations; and iv) any reissues,  reexaminations, and extensions of all such
Patents;

c) to the extent that the following  contain one or more claims  directed to the
invention  or  inventions   disclosed  in  a)  above:  all  counterpart  foreign
Applications  and Patents to a) and b) above,  excluding those  corresponding to
United  States  Patent  Number  4,892,827,  entitled,  "Recombinant  Pseudomonas
Exotoxin: Construction of An Immunotoxin With Low Side Effects", Inventors; Drs.
Ira H. Pastan, Sankar Adhya and David Fitzgerald, as listed in Appendix A.

Licensed Patent Rights shall not include subject matter within b) or c) above to
the extent that such subject matter is covered by one or more claims directed to
new matter which is not the subject matter disclosed in a) above.

2.08  "Licensed  Process(es)"  means  processes  which,  in the  course of being
practiced  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.

2.09 "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.

2.10 "Licensed Territory" means the geographical area identified in Appendix B.

2.11 "Net Sales"  shall mean the total of all amounts  invoiced by Licensee  and
its authorized  Affiliates and sublicensees,  for sales of Licensed  Product(s),
net of all  separately  invoiced and actually  incurred  charges,  including (a)
credits, allowances, discounts and rebates to, and charge-backs from the account
of, such  independent  third  parties;  (b) actual  freight and insurance  costs
incurred in transporting  Licensed Product(s) to such independent third parties;
(c) reasonable and customary cash,  quantity and trade discounts and other price
reduction programs; (d) sales, use, value-added and other direct taxes incurred;
and (e) customs  duties,  surcharges and other  government  charges  incurred in
connection with the exportation or importation of Licensed Product(s).

"Practical  Application"  means to  manufacture  in the case of a composition or
product,  to practice  in the case of a process or method,  or to operate in the
case of a machine or  system;  and in each case,  under  such  conditions  as to
establish  that the invention is being utilized and that its benefits are to the
extent  permitted by law or  Government  regulations  available to the public on
reasonable terms.

2.13 "Research  License" means a nontransferable,  nonexclusive  license to make
and to use the  Licensed  Products  or  Licensed  Processes  as  defined  by the
Licensed  Patent  Rights  for  purposes  of  research  and not for  purposes  of
commercial manufacture or distribution or in lieu of purchase.

2.14 "Affiliate" means a corporation or other business entity which, directly or
indirectly,  is  controlled  by,  controls,  or is  under  common  control  with
Licensee. For this purpose, the term "control" shall mean ownership of more than
forty-eight percent (48%) of the voting stock or other ownership interest of the
corporation or other business entity, or the power to elect or appoint more than
forty-eight  percent  (48%)  of  the  members  of  the  governing  body  of  the
corporation or other business entity.

2.15  "Optioned  Field(s) of Use" means the fields of use identified in Appendix
B.

3.       GRANT OF RIGHTS

3.01 PHS hereby grants and Licensee accepts, subject to the terms and conditions
of this Agreement, an exclusive license 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 and to practice
and have practiced any Licensed Processes in the Licensed Fields of Use.

3.02 Subject to Article 5, Paragraphs 5.01-5.05,  PHS hereby grants and Licensee
accepts an exclusive  option under the  Licensed  Patent  Rights in the Licensed
Territory for any  therapeutic  application not within the Licensed Field of Use
(hereinafter defined as "Optioned Field(s) Use").

3.03 This Agreement  confers no license or rights by implication,  estoppel,  or
otherwise  under any Patent  Applications  or Patents of PHS other than Licensed
Patent Rights  regardless of whether such Patents are dominant or subordinate to
Licensed Patent Rights.

4.       SUBLICENSING

4.01  Licensee will provide PHS written  notice of its intent to sublicense  the
Licensed  Patent  Rights  and  a  copy  of  the  term  sheet  and/or   pertinent
sublicensing  terms within thirty (30) days [***]. However, PHS has the right to
require  deletion  or  mod)fication  of any  provision(s)  of such  sublicensing
agreement(s) which PHS determines to be contrary to Law or Federal Statutes.

4.02 Licensee agrees that any  sublicenses  granted by it shall provide that the
obligations to PHS of paragraphs 6.01-6.04,  9.01-9.02,  11.01-11.02,  13.05 and
14.07-14.09  of this  Agreement  shall be binding upon the  sublicensee as if it
were a party to this  Agreement.  Licensee  further  agrees to attach  copies of
these Paragraphs to all sublicense agreements.

4.03 Any  sublicenses  granted by Licensee shall provide for the  termination of
the  sublicense,   or  the  conversion  to  a  license   directly  between  such
sublicensees and PHS, at the option of the sublicensee, upon termination of this
Agreement  under  Article 14. Such  conversion  is subject to PHS  approval  and
contingent  upon  acceptance by the  sublicensee of the remaining  provisions of
this Agreement.

4.04 Licensee agrees to forward to PHS a copy of each fully executed  sublicense
agreement  postmarked within sixty (60) days of the execution of such agreement.
To the extent  permitted  by law,  PHS agrees to maintain  each such  sublicense
agreement in confidence.

5.       OPTION

5.01 The option period shall extend for five (5) years from the  effective  date
of this  Agreement.  Subject to the  provisions  of this Article 5, PHS will not
offer an exclusive  or  non-exclusive  license or an exclusive or  non-exclusive
option to any third party until the end of the option period, [***].

5.02 Licensee may exercise its option by providing a written notice to PHS prior
to expiration of the option period [***], said notice shall include a Commercial
Development  Plan and Benchmarks  for each  therapeutic  application  within the
Optioned Field(s) of Use for which Licensee will undertake development.

5.03  [***],  PHS will be free to  license  Licensed  Patent  Rights  within the
Optioned  Field(s)  of Use to a third party [***] upon any terms PHS deems to be
commercially reasonable.

The  Commercial  Development  Plan(s) and Benchmarks set forth in Paragraph 5.02
shall be subject to PHS ~ review and approval.

5.05 Upon PHS's  receipt,  review and  approval  of the  Commercial  Development
Plan(s) and  Benchmarks,  the parties to this Agreement shall meet and negotiate
in good faith the term of license for the use of the License  Patent  Rights for
each of the  therapeutic  applications  be:  requested  by  Licensee  within the
Optioned  Field(s) of Use. If the parties  cannot  agree upon terms of a license
for the  Optioned  Field(s) of Use within  sixty (60) days after  entering  into
negotiations,  PHS shall be free to license the Licensed  Patent Rights for such
Optioned  Fields of Use to a third  party (a) at any time  within two (2) months
from the termination of such  negotiations at terms no more favorable than those
last offered to Licensee,  or (b) at any time  subsequent  to the  expiration of
three (3) months from the termination of such  negotiations  any terms PHS deems
to be commercially reasonable.

6.       STATUTORY AND PHS REQUIREMENTS AND RESERVED GOVERNMENT RIGHTS

6.01 PHS  reserves on behalf of the  Government  an  irrevocable,  nonexclusive,
nontransferable,  royalty-free  license  for  the  practice  of  all  inventions
licensed under the Licensed  Patent Rights  throughout the world by or on behalf
of the  Government  and on behalf of any  foreign  government  or  international
organization  pursuant to any existing or future  treaty or agreement  which the
Government is a signatory.  Prior to the First Commercial Sale,  Licensee agrees
to provide PHS mutually acceptable  quantities of Licensed Products or materials
made through Licensed Processes for research use. PHS shall supply Licensee with
a research plan outlining its intended use of the Licensed Products or materials
made through the Licensed  Processes supplied by Licensee to PHS. PHS will allow
Licensee  to provide  its input  regarding  the PHS  research  plan and PHS will
provide Licensee with a summary of its results of research under research plan.

6.02 Licensee  agrees that products used or sold in the United States  embodying
Licensed  Products  or  produced  through  use of  Licensed  Processes  shall be
manufactured  substantially  in the United  States,  unless a written  waiver is
obtained in advance from PHS.

6.03 Licensee  acknowledges that PHS may enter into future Cooperative  Research
and Development Agreements (CRADAs) under the Federal Technology Transfer Act of
1986 that relate to the subject matter of this Agreement. Licensee agrees not to
unreasonably deny requests for a Research License from such future collaborators
with  PHS when  acquiring  such  rights  is  necessary  in order to make a CRADA
project feasible.  Licensee may request an opportunity to join as a party to the
proposed CRADA.

6.04 In addition to the reserved  license of Paragraph 5.01 above,  PHS reserves
the right to grant such  nonexclusive  Research  Licenses directly or to require
Licensee to grant  nonexclusive  Research  Licenses  on  reasonable  terms.  The
purpose  of this  Research  License  is to  encourage  basic  research,  whether
conducted  at an academic  or  corporate  facility.  In order to  safeguard  the
Licensed Patent Rights,  however,  PHS shall obtain the prior written consent of
Licensee,  which consent shall not be unreasonably withheld,  before granting an
commercial  entities  a Research  License.  If PHS  desires to provide  research
samples of biological  materials  claimed under the Licensed  Patent Rights to a
commercial entity, PHS shall only do so under an appropriate Research License or
Material Transfer Agreement.

7.  ROYALTIES AND REIMBURSEMENT

7.01 Licensee agrees to pay to PHS a noncreditable,  nonrefundable license issue
royalty as set forth in  Appendix C within  thirty  (30) days from the date that
this Agreement becomes effective.

7.02  Licensee  agrees  to pay to PHS a [***]  royalty  payment  as set forth in
Appendix C.  The [***] royalty  payment is due and payable on [***].  The [***]
royalty  payment  due for the  first  [***] of this  Agreement  may be  prorated
according to the fraction of the calendar year  remaining  between the effective
date of the Agreement and the [***].

7.03 Licensee agrees to pay PHS earned royalties as set forth in Appendix C.

7.04 Licensee agrees to pay PHS benchmark royalties as set forth in Appendix C.

7.05 Licensee agrees to pay [***] as set forth in Appendix
C.

7.06 A claim of a Patent or Patent  Application  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 or irrevocably lapses, or c) the claim has
been held to be  invalid  or  unenforceable  by an  unappealed  or  unappealable
decision of a court of competent jurisdiction or administrative agency.

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

7.08 On sales of Licensed  Products by Licensee to  sublicensees  or  aff~liated
parties or on sales made in other than an arm's-length transaction, the value of
the Net Sales  attributed  under this Article 6 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.  Sales of Licensed  Products  for use in  preclinical  and clinical
testing and sales of Licensed Products,  on a non-commercial basis, for research
purposes are excluded from this provision,  as are limited interim  transfers of
Licensed Products to Affiliates,  sublicensees or incidental to a partnership or
joint venture collaboration between Licensee and a third party.

7.09  With  regard  to  expenses   associated  with  the  preparation,   filing,
prosecution,  and maintenance of all Patent Applications and Patents, except for
USPN 4,892,827 (= USSN  06/911,227),  included within the Licensed Patent Rights
incurred by PHS prior to the effective  date of this  Agreement,  Licensee shall
pay to PHS, as an additional royalty, within sixty (60) days of PHS's submission
of a statement  and request for payment to Licensee,  the amount [***] to cover 
Patent expenses previously incurred by PHS and detailed in Appendix G.

With regard to expenses  associated with the preparation,  filing,  prosecution,
and  maintenance  of all Patent  Applications  and Patents  included  within the
Licensed  Patent Rights  incurred by PHS on or after the effective  date of this
Agreement, PHS, at its sole option, may require Licensee:

(a)   to pay PHS on an annual basis,  within sixty (60) days of PHS's submission
      of a statement and request for payment, a royalty amount equivalent to all
      such Patent expenses incurred during the previous calendar year(s); or

(b)   to pay such  expenses  directly to the law firm  employed by PHS to handle
      such functions.  However, in such event, PHS and not Licensee shall be the
      client of such law firm.

    Under exceptional  circumstances,  Licensee may be given the right to assume
responsibility for the preparation,  filing,  prosecution, or maintenance of any
Patent  Application or Patent included with the Licensed Patent Rights.  In that
event,  Licensee  shall directly pay the attorneys or agents engaged to prepare,
file,  prosecute  or  maintain  such  Patent  Applications  or Patents and shall
provide to PHS copies of each invoice  associated  with such services as well as
documentation that such invoices have been paid.

Licensee  may elect to  surrender  its  rights in any  country  of the  Licensed
Territory  under any Licensed  Patent Rights upon sixty (60) days written notice
to PHS and owe no further  obligation for  Patent-related  expenses  incurred in
that country after the effective date of such written notice.

8.       PATENT FILING, PROSECUTION, AND MAINTENANCE

8.01  Except  as  otherwise  provided  in this  Article  8, PHS  agrees  to take
responsibility  for,  but to consult  with,  the  Licensee  in the  preparation,
filing,  prosecution,  and  maintenance  of any Patent  Applications  or Patents
included  in  the  Licensed   Patent  Rights  and  shall  furnish  cof  relevant
Patent-related documents to Licensee.

8.02 Upon execution of this Agreement,  Licensee shall assume the responsibility
for the  preparation,  filing,  prosecution,  and  maintenance  of United States
Patent Number  5,635,599 and United States  Patent  Application  Serial  Numbers
08/722,258  and  08/616,785 of Licensed  Patent  Rights,  including all relevant
continuations-in-part,  all divisions and  continuations  of these  continuation
in-part;  all Patents  issuing from such  continuation-in-part,  divisions,  and
continuations,  and any  reissues,  reexaminations  and  extensions  of all such
Patents,  and  shall  on  an  ongoing  basis  promptly  furnish  copies  of  all
Patent-related  documents to PHS. In such event,  Licensee shall, subject to the
prior approval of PHS, select  registered  Patent  attorneys or Patent agents to
provide  such   services  on  behalf  of  Licensee  and  PHS.PHS  shall  provide
appropriate  powers of attorney and other documents  necessary to undertake such
actions  to the Patent  attorneys  or Patent  agents  providing  such  services.
Licensee and its  attorneys  or agents shall  consult with PHS in all aspects of
the preparation,  filing, prosecution and maintenance of Patent Applications and
Patents  included  within  the  Licensed  Patent  Rights and shall  provide  PHS
sufficient  opportunity to comment on any document that Licensee intends to file
or to cause to be  filed  with the  relevant  intellectual  property  or  Patent
office.

8.03 If Licensee has assumed control of the Licensed Patent Rights in accordance
with  Paragraphs  7.10 and 8.02,  at any time,  PHS may  provide  Licensee  with
written  notice that PHS wishes to assume  control of the  preparation,  filing,
prosecution,  and  maintenance  of any and all  Patent  Applications  or Patents
included  in  the  Licensed  Patent  Rights.   If  PHS  elects  to  assume  such
responsibilities, Licensee agrees to cooperate fully with PHS, its attorneys and
agents in the preparation,  filing, prosecution,  and maintenance of any and all
Patent  Applications  or Patents  included in the Licensed  Patent Rights and to
provide PHS with  complete  copies of any and all  documents or other  materials
that PHS deems necessary to undertake such  responsibilities.  Licensee shall be
responsible  for all  costs  associated  with  transferring  Patent  prosecution
responsibilities to an attorney or agent of PHS's choice.

8.04 Each party shall  promptly  inform the other as to all matters that come to
its  attention  that  may  affect  the  preparation,   filing,  prosecution,  or
maintenance  of the  Licensed  Patent  Rights and  permit  each other to provide
comments  and  suggestions  with  respect  to  the  preparation,   filing,   and
prosecution of Licensed Patent Rights,  which comments and suggestions  shall be
considered by the other party.

9.       RECORD KEEPING

9.01 Licensee agrees to keep accurate and correct  records of Licensed  Products
made,  used,  or sold and  Licensed  Processes  practiced  under this  Agreement
appropriate  to determine the amount of royalties due PHS. Such records shall be
retained for at least [***] years following a given reporting  period.  Upon the
written  request of PHS,  and not more than once per calendar  year,  unless PHS
determines  there is reason(s) for more  frequent  inspections,  Licensee  shall
permit an accountant or other designated auditor selected by PHS to inspect such
records for the sole purpose of verifying reports and payments  hereunder at the
expense of PHS. The accountant or auditor shall only disclose to PHS infonnation
relating to the accuracy of reports and payments made under this  Agreement.  If
an inspection shows an underreporting or underpayment in excess of [***] for any
twelve (12) month period,  then Licensee shall reimburse PHS for the cost of the
inspection  at the time Licensee pays the  unreported  royalties,  including any
late  charges as required by  Paragraph  10.08 of this  Agreement.  All payments
required under this  Paragraph  shall be due within thirty (30) days of the date
PHS provides Licensee notice of the payment due.

9.02 Licensee  agrees to conduct an independent  audit of sales and royalties at
least  every two years if  annual  sales of the  Licensed  Product  or  Licensed
Processes are over [***]  dollars.  The audit shall address,  at a minimum,  the
amount of gross sales by or on behalf of Licensee  during the audit period,  the
amount of funds owed to the  Government  under this  Agreement,  and whether the
amount owed has been paid to the  Government  and is reflected in the records of
the  Licensee.  A report by the auditor  shall be  submitted  promptly to PHS on
completion.  Licensee  shall  pay for the  entire  cost of the  audit,  however,
Licensee  may  credit  [***] of such  costs for the  audit  against  any  future
royalties due to PHS under this Agreement.

10.      REPORTS ON PROGRESS. BENCHMARKS. SALES. AND PAYMENTS

10.01  Prior  to  signing  this  Agreement,  Licensee  has  provided  to PHS the
Commercial  Development Plan attached and/or as Appendix F, under which Licensee
intends to bring the subject  matter of the Licensed  Patent Rights to the point
of Practical  Application.  This Commercial  Development Plan is attached and/or
hereby  incorporated  by  reference  into this  Agreement.  Based on this  plan,
performance Benchmarks are determined as specified in Appendix E.

10.02 Licensee shall provide  written annual reports on its product  development
progress or efforts to commercialize  under the Commercial  Development Plan for
each of the Licensed  Fields of Use within sixty (60) days after  December 31 of
each calendar year. These progress reports shall include, but not be limited to:
progress on research and  development,  status of  applications  for  regulatory
approvals,  manufacturing,   sublicensing,   marketing,  and  sales  during  the
preceding  calendar  year, as well as plans for the present  calendar  year. PHS
also encourages these reports to include information on any of Licensee's public
service  activities  that  relate to the  Licensed  Patent  Rights.  If reported
progress  differs from that  projected in the  Commercial  Development  Plan and
Benchmarks,  Licensee shall explain the reasons for such  differences.  Licensee
agrees to provide  any  additional  information  reasonably  required  by PHS to
evaluate Licensee's performance under this Agreement. PHS shall not unreasonably
withhold  approval of any request of Licensee to extend the time periods of this
schedule if such request is  supported  by a  reasonable  showing by Licensee of
diligence in its performance  under the Commercial  Development  Plan and toward
bringing the Licensed Products to the point of Practical

10.03 Licensee shall report to PHS the date of the First Commercial Sale in each
country in the Licensed Territory within thirty (30) days of such occurrence.

10.04  Licensee  shall  submit to PHS within  sixty (60) days after each [***] a
royalty  report setting forth for the preceding  half-year  period the amount of
the Licensed  Products sold or Licensed  Processes  practiced 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
PHS for any reporting  period,  the written  report shall so state.  The royalty
report shall be certified as correct by an  authorized  of ficer of Licensee and
shall include a detailed  listing of all deductions made under Paragraph 2.10 to
determine Net Sales made under Article 7 to determine royalties due.

10.05 Licensee agrees to forward [***] to PHS a copy of such reports received by
Licensee from its  sublicensees  during the  preceding  [***] period as shall be
pertinent to a royalty  accounting to PHS by Licensee for  activities  under the
sublicense.

10.06  Royalties  due  under  Article  6 shall  be paid  in  U.S.  dollars.  For
conversion of foreign currency to U.S. dollars, the conversion rate shall be the
New York foreign exchange rate quoted in The Wall Street Journal on the day that
the payment is due. All checks and bank drafts  shall be drawn on United  States
banks and shall be  payable,  as  appropriate,  for FDA or NIH  licenses  to the
National  Institutes  of  Health,  P.O.  Box  360120,  Pittsburgh,  Pennsylvania
15251-6120.  Any loss of exchange,  value,  taxes, or other expenses incurred in
the transfer or conversion  to U.S.  dollars shall be paid entirely by Licensee.
The royalty report  required by Paragraph 9.04 of this Agreement shall accompany
each such  payment and a copy of such report  shall also be mailed to PHS at its
address for notices indicated on the Signature Page of this Agreement.

10.07  The  parties  acknowledge  that  Licensee  and  its  sublicensees  may be
obligated to pay taxes, fees, assessments or other charges imposed by government
authorities  (the "Charges") up on royalty  payments  payable in connection with
the sale of Licensed  Products.  Licensee and its sublicensees shall provide PHS
with documentation  regarding the Charges and the payment of such Charges to the
appropriate governmental authorities. Licensee and its sublicensees shall deduct
all such  Charges  from the royalty  payments  due in  Paragraph  7.03 and shall
provide a listing of all such  Charges in the  royalty  report due in  Paragraph
10.04.   Licensee  shall  pay  the  Charges  to  the  appropriate   governmental
authorities.  Licensee shall promptly  provide PHS with any documents  which may
reasonably be necessary for PHS to obtain any credit to which it may be entitled
with respect to the Charges.

10.08 Late  charges  will be  assessed  by PHS as  additional  royalties  on any
overdue payments at a rate of [***] percent per month compounded monthly.  The
payment of such late  charges  shall not prevent PHS from  exercising  any other
rights it may have as a consequence of the lateness of any payment.

10.09 All plans and reports required by this Article 10 and marked confidential"
by  Licensee  shall,  to the  extent  permitted  by law,  be  treated  by PHS as
commercial  and financial  information  obtained from a person and as privileged
and  confidential  and any proposed  disclosure of such records by the PHS under
the  Freedom  of  Information  Act,  5  U.S.C.  552  shall  be  subject  to  the
predisclosure notification requirements of 45 CFR 5.65(d).

11.  PERFORMANCE

11.01  Licensee  shall use its  reasonable  best  efforts  to bring the  License
Products and  Licensed  Processes to  Practical  Application.  "Reasonable  best
efforts" for the purposes of this provision shall include  Licensee's good faith
attempts to adhere to the Commercial  Development Plan at Appendix F and perform
the Benchmarks at Appendix E.
The efforts of a sublicensee shall be considered the efforts of Licensee.

11.02 Upon the First  Commercial  Sale,  until the expiration of this Agreement,
Licensee  shall use its  reasonable  best efforts to make Licensed  Products and
Licensed Processes reasonably accessible to the United States public.

12.      INFRINGEMENT AND PATENT ENFORCEMENT

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

12.02  Pursuant to this  Agreement and the provisions of Chapter 29 of title 35,
United  States  Code,  Licensee  may a) bring  suit in its own name,  at its own
expense,  and on its own behalf for  infringement of presumably  valid claims in
the Licensed Patent Rights; b) in any such suit, enjoin infringement and collect
for its use,  damages,  profits,  and awards of whatever nature  recoverable for
such  infringement;  and c)  settle  any claim or suit for  infringement  of the
Licensed Patent Rights  provided,  however,  that [***]. If Licensee  desires to
initiate a suit for Patent infringement Licensee shall notify PHS in writing. If
PHS does not [***]. PHS shall have a continuing right to intervene in such suit.
Licensee shall take no action to compel the Government  either to initiate or to
join in any  such  suit  for  Patent  infringement.  Licensee  may  request  the
Government to initiate or join in any such suit if necessary to avoid  dismissal
of the suit.  Should the  Government be made a party to any such suit,  Licensee
shall  reimburse  the  Government  for any  costs,  expenses,  or fees which the
Government incurs as a result of such motion or other action,  including any and
all costs  incurred by the Government in opposing a such motion or other action.
In all cases,  Licensee  agrees to keep PHS  reasonably  apprised  of status and
progress of any litigation.  Before Licensee  commences an infringement  action,
Licensee shall notify PHS and give careful consideration to the views of PHS and
to any  potential  effects of the  litigation  on the public  health in deciding
whether to bring suit.

12.03 In the event that a declaratory  judgment  action  alleging  invalidity or
non-infringement  of any of the Licensed  Patent Rights shall be brought against
Licensee  or  raised  by  way  of  counterclaim  or  affirmative  defense  in an
infringement  suit brought by Licensee under Paragraph  12.02,  pursuant to this
Agreement  and the  provisions  of Chapter 29 of Title 35, United States Code or
other  statutes,  Licensee  may a) defend  the suit in its own name,  at its own
expense,  and on its own  behalf for  presumably  valid  claims in the  Licensed
Patent Rights;  b) in any such suit,  ultimately to enjoin  infringement  and to
collect for its use, damages, profits, and awards of whatever nature recoverable
for such infringement;  and c) settle any claim or suit for declaratory judgment
involving the Licensed Patent Rights-provided, however, that PHS and appropriate
Government  Patent License  Agreement  authorities shall have the first right to
take such actions and shall have a  continuing  right to intervene in such suit.
If PHS does not notify  Licensee  of its  intent to respond to the legal  action
within sixty (60) days,  Licensee will be free to do so.  Licensee shall take no
action to  compel  the  Government  either  to  initiate  or to join in any such
declaratory judgment action.  Licensee may request the Government to initiate or
to join any such suit if  necessary to avoid  dismissal of the suit.  Should the
Government  be made a party to any such suit by  motion  or any other  action of
Licensee,  Licensee shall reimburse the Government for any costs,  expenses,  or
fees which the Government  incurs as a result of such motion or other action. If
Licensee elects not to defend against such declaratory  judgment action, PHS, at
its option, may do so at its own expense. In all cases,  Licensee agrees to keep
PHS  reasonably  apprised of the status and progress of any  litigation.  Before
Licensee  commences an infringement  action,  Licensee shall notify PHS and give
careful  consideration  to the views of PHS and to any potential  effects of the
litigation on the public health in deciding whether to bring suit.

12.04 In any action under Paragraphs  12.02 or 12.03 initiated by Licensee,  the
expenses including costs, fees, attorney fees, and disbursements,  shall be paid
by  Licensee.  [***].

12.05 PHS shall  cooperate  fully with  Licensee in  connection  with any action
under  Paragraphs  12.02 or 12.03.  PHS agrees promptly to provide access to all
necessary documents and to render reasonable assistance in response to a request
by Licensee.

13.      NEGATION OF WARRANTIES AND INDEMNIFICATION

13.01 PHS offers no warranties other than those specified in Article 1.

13.02 PHS  represents  to the best of  knowledge  and  belief of PHS,  as of the
execution date hereof, there are no Patents or Patent Applications of PHS, other
than  those  within  the  Licensed  Patent  Rights,  which  would  dominate  the
manufacture,  use  or  sale  of  Licensed  Product(s)  or the  use  of  Licensed
Process(es).

13.03 PHS 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.

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

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

13.06 Licensee shall indemnify and hold PHS, 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 of a) the use
by or on behalf of Licensee, its Affiliates,  sublicensees,  and contractors and
their  respective  directors and employees of any Licensed Patent Rights,  or b)
the design, manufacture, distribution, or use of any Licensed Products, Licensed
Processes or materials by Licensee,  or other products or processes developed by
Licensee,  its Affiliates,  sublicensees,  and contractors in connection with or
arising  out of the  Licensed  Patent  Rights.  Licensee  agrees to  maintain  a
liability insurance program consistent with sound business practice.

14.      TERM. TERMINATION. AND MODIFICATION OF RIGHTS

14.01 This Agreement is effective when signed by all parties and shall extend to
the  expiration  of the  last to  expire  of the  Licensed  Patent  Rights  on a
country-by-country  basis,  unless sooner terminated as provided in this Article
14.

14.02 In the  event  that  Licensee  is in  default  in the  performance  of any
material  obligations  under this  Agreement,  including  but not limited to the
obligations  listed in Article  14.05,  and if the default has not been remedied
within ninety (90) days after the date of notice in writing of such default, PHS
may terminate this Agreement by written notice.

14.03  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 PHS in
writing.

14.04 Licensee shall have a unilateral  right to terminate this Agreement and/or
any licenses in any country by giving PHS sixty (60) days written notice to that
effect.

14.05 PHS shall  specifically  have the right to  terminate  or  modify,  at its
option, this Agreement, if PHS determines that the Licensee: 1) is not executing
the Commercial  Development Plan submiKed with its request for a license and the
Licensee carmot otherwise  demonstrate to PHS's  satisfaction  that the Licensee
has taken, or can be expected to take within a reasonable time,  effective steps
to achieve practical application of the Licensed Products or Licensed Processes;
2) has not achieved the Benchmarks as may be mod)fied under Paragraph  10.02; 3)
has willfully made a false statement of, or willfully  omitted,  a material fact
in the license  application or in any report required by the license  agreement;
4) has committed a material  breach of a covenant or agreement  contained in the
license;  5) is not keeping Licensed Products or Licensed  Processes  reasonably
available to the public after  commercial  use commences;  6) cannot  reasonably
satisfy  uninet  health  and safety  needs;  or 7) cannot  reasonably  justify a
failure to comply with the domestic  production  requirement  of Paragraph  6.02
unless  waived.  In making this  determination,  PHS will talce into account the
normal course of such commercial  development  programs conducted with sound and
reasonable  business practices and judgment and the ar~nual reports submitted by
Licensee under  Paragraph  10.02.  Prior to invoking this right,  PHS shall give
written notice to Licensee  providing  Licensee specific notice of, and a ninety
(90) day  opportunity  to respond to, PHS's concerns as to the previous items 1)
to 7). If Licensee fails to alleviate PHS's concerns as to the previous items 1)
to 7) or fails to  initiate  corrective  action to PHS's  satisfaction,  PHS may
terminate this Agreement.

14.06 When the public health and safety so require,  and after written notice to
Licensee providing  Licensee a sixty (60) day opportunity to respond,  PHS'shall
have  the  right  to  require  Licensee  to  grant  sublicenses  to  responsible
applicants,  on  reasonable  terms,  in any  Licensed  Fields  of Use  under the
Licensed Patent Rights,  unless  Licensee  can'reasonably  demonstrate  that the
granting of the sublicense would not materially increase the availability to the
public of the subject matter of the Licensed Patent Rights. PHS will not require
the  granting  of a  sublicense  unless  the  responsible  applicant  has  first
negotiated in good faith with Licensee.

14.07 PHS reserves the right  according to 35 U.S.C. * 209(f)(4) to terminate or
modify this Agreement if it is determined  that such action is necessary to meet
requirements  for public use specified by federal  regulations  issued after the
date of the  license  and such  requirements  are not  reasonably  satisfied  by
Licensee.

14.08 Within thirty (30) days of receipt of written  notice of PHS's  unilateral
decision to modify or terminate this  Agreement,  Licensee may,  consistent with
the  provisions of 37 CFR 404.11,  appeal the decision by written  submission to
the designated PHS official.  The decision of the designed PHS official shall be
the  final  agency  decision.  Licensee  may  thereafter  exercise  any  and all
administrative or judicial remedies that may be available.

14.09 Within  ninety (90) days of expiration or  termination  of this  Agreement
under this  Article 14, a final  report  shall be  submitted  by  Licensee.  Any
royalty  payments,  including those related to Patent expense,  due to PHS shall
become immediately due and payable upon termination or expiration. If terminated
under this Article 14,  sublicensees  may elect to convert their  sublicenses to
direct licenses with PHS pursuant to Paragraph 4.03.

15.      GENERAL PROVISIONS

15.01  Neither Party may waive or release any of its rights or interests in this
Agreement  except in writing.  The failure of the  Government  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 the  Government  or
excuse a similar  subsequent  failure to perform any such term or  condition  by
Licensee.

15.02 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.

15.03 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 c such determination  shall not in any way affect the
validity or enforceability of the remainin~ provisions of this Agreement.

15.04 If either Party  desires a  mod)fication  to this  Agreement,  the Parties
shall, upon reasonable notice of the proposed mod)fication by the Party desiring
the  change,  confer  in  good  faith  to  determine  the  desirability  of such
mod)fication.  No mod)fication  will be effective  until a written  amendment is
signed by the signatories to this Agreement or their designees.

15.05 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.

15.06 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 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.

15.07 This Agreement  shall not be assigned by Licensee except a) with the prior
written consent of PHS, such consent not to be withheld  unreasonably;  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 PHS
within ten (10) days of any assignment of this Agreement by Licensee.

15.08 Licensee  agrees in its use of any  PHS-supplied  materials to comply with
all applicable statutes,  regulations,  and guidelines,  including Public Health
Service and National  Institutes of Health regulations and guidelines.  Licensee
agrees  not to use the  materials  for  research  involving  human  subjects  or
clinical  trials in the United States without  complying with 21 CFR Part 50 and
45 CFR Part 46. Licensee agrees not to use the materials for research  involving
human subjects or clinical trials outside of the United States without notifying
PHS, in writing,  of such research or trials and complying  with the  applicable
regulations  of  the   appropriate   national   control   authorities.   Written
not)fication  to PHS of research  involving  human  subjects or clinical  trials
outside of the United  States shall be given no later than sixty (60) days prior
to commencement of such research or trials.

15.09  Licensee  acknowledges  that it is  subject to and agrees to abide by the
United States laws and regulations  (including the Export  Administration Act of
1979 and Arms Export  Control Act)  controlling  the export of  technical  data,
computer  software,  laboratory  prototypes,   biological  material,  and  other
commodities. The transfer of such items may require a license from the cognizant
Agency of the U.S.  Government  or written  assurances by Licensee that it shall
not export such items to certain  foreign  countries  without prior  approval of
such  agency.  PHS neither  represents  that a license is or is not  required or
that, if required, it shall be issued.

15.10 Licensee  agrees to mark the Licensed  Products or their packaging sold in
the United  States with all  applicable  U.S.  Patent  numbers and  similarly to
indicate "Patent Pending" status. All Licensed Products manufactured in, shipped
to, or sold in other  countries  shall be marked in such a manner as to preserve
PHS Patent rights in such countries.

15.11 By entering  into this  Agreement,  PHS 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 the  Government,  PHS, any other
Government  organizational  unit,  or  any  Government  employee.  Additionally,
Licensee  shall not use the names of NIH, CDC, PHS, or DHHS or the Government or
their employees in any advertising, promotional, or sales literature without the
prior written consent of PHS.

15.12 The Parties agree to attempt to settle  amicably any  controversy or claim
arising under this Agreement or a breach of this  Agreement,  except for appeals
of modifications or termination  decisions  provided for in Article 13. Licensee
agrees  first  to  appeal  any  such  unsettled  clad  or  controversies  to the
designated  PHS official,  or designee,  whose  decision shall be considered the
final agency decision.  Thereafter,  Licensee may exercise any administrative or
judicial remedies that may be available.

15.13 Nothing relating to the grant of a license, nor the grant itself, shall be
construed  to confer upon any person any  immunity  from or  defenses  under the
antitrust laws or from a charge of Patent misuse, and the acquisition and use of
rights  pursuant to 37 CFR PaTt 404 shall not be immuniz~  from the operation of
state or Federal law by reason of the source of the grant.

15.14 Paragraphs 4.03, 9.01-9.02,  10.06-10.08,  13.01-13.05,  14.08, 14.09, and
l5.12 of this Agreement shall survive termination of this Agreement.

PHS PATENT LICENSE AGREEMENT--EXCLUSIVE
SIGNATURE PAGE

IN WITNESS  WHEREOF,  the parties have executed this  agreement on the dates set
forth below.  The Effective Date of this Agreement  shall mean the date on which
the last party to this Agreement signs. Any  communication or notice to be given
shall be forwarded to the respective addresses listed below.

FOR PHS

/s/ Jack Spiegle, Ph.D              May 7, 1998
    Director, Division of Technology Development and Transfer
    Office of Technology Transfer
    National Institutes of Health


Mailing Address for Notices:
Office of Technology Transfer
National Institutes of Health
6011 Executive Boulevard, Suite 325
Rockville, Maryland 20852

FOR LICENSEE (The undersigned  expressly  certifies or affirms that the contents
of any statements of LICENSEE, made or referred to in this document are truthful
and accurate.)

/s/ Gary Lyons                      May 7, 1998
President and C.E.O.
Neurocrine Biosciences, Inc.

Mailing Address for Notices:
Neurocrine Biosciences, Inc.
Attn.: Gary A. Lyons
President and C.E.O.
3050 Science Park Road
San Diego, California 92121







APPENDIX A--Patent(s) or Patent Application(s)


Licensed Patent Rights

USPN 5,635,599 (= USSN 08/225,224),  Entitled,  "Circularly Permuted Ligands And
Circularly  Permuted Fusion  Proteins",  Inventors:  Drs. Ira H. Pastan,  Robert
Kreitman, and Raj K. Puri.

USSN  08/722,258  (= CIP of USSN  08/225,224),  Entitled,  "Circularly  Permuted
Ligands and  Circularly  Permuted  Chimeric  Molecules",  Drs. Ira H. Pastan and
Robert Kreitman.

USPN 4,892,827 (= USSN 06/911,227), Entitled, "Recombinant Pseudomonas Exotoxin:
Construction of an Active  Immunotoxin with Low Side Effects",  Inventors:  Drs.
Ira H. Pastan,  Sankar  Adhya,  and David  Fitzgerald,  - excluding  any foreign
equivalents corresponding to 4,892,827 (= USSN 06/911,227).

USSN 08/616,785,  Entitled "Convention-enhanced Drug Delivery",  Inventors: Drs.
Douglas W. Laske,  Edward H. Oldfield,  Richard H. Bobo, Robert L. Denrick,  and
Paul F. Morrison.







Licensed Fields of Use:

The use of Interleukin-4/Cytotoxin Fusion Proteins for the Therapeutic Treatment
of Cancer.



Licensed Territory:

Worldwide



Optioned Field(s) of Use:

The use of the  Licensed  Patent  Rights  for a  therapeutic  application(s)  of
Interleukin4/Cytotoxin Fusion Proteins outside of the Licensed Fields of Use.







APPENDIX C--Royalties

Licensee  agrees  to pay to PHS a  noncreditable,  nonrefundable  license  issue
royalty in the amount of [***] housand dollars [***].

Licensee  agrees to pay to PHS a  nonrefundable  minimum  annual  royalty in the
amount of ten thousand  dollars  ($10,000.00) for each year this Agreement is in
[***].

Licensee agrees to pay PHS earned royalties on Net Sales as follows:

A. [***] on Net Sales of Licensed  Products  made,  have made,  used, or sold by
Licensee  or  its  sublicensees  in  the  United  States  and  Licensee  or  its
sublicensees shall be entitled to a [***] credit against the earned royalty rate
for each  [***]  of  royalty  which  Licensee  must  pay to  other  unaffiliated
licensors  for  all   therapeutically   active  ingredients   required  for  the
manufacture or sale of Licensed  Products except for royalty which Licensee must
pay to other unaffiliated licensors for all counterpart foreign Applications and
Patents  corresponding  to United  States  Patent  Number  4,892,827,  entitled,
"Recombinant Pseudomonas Exotoxin:  Construction Of An Immunotoxin With Low Side
Effects",  inventors;  Pastan,  A&ya and  Fitzgerald,  as listed in  Appendix A.
However,  in no  event  shall  the  earned  royalty  due to PHS for the  sale of
Licensed Products fall below [***].

B. [***] on Net Sales of Licensed  Products made, have made, used, or
sold by Licensee or its  sublicensees in the Licensed  Territory  outside of the
United States.

Licensee agrees to pay PHS benchmark royalties as follows:

[***]


PHS and  Licensee  agree to the  following  modifications  to the  Articles  and
Paragraphs of this Agreement:

NONE DOES NOT APPLY/ NO  MODIFICATIONS  OR  AMENDMENTS  ARE HEREBY  MADE TO THIS
AGREEMENT.






APPENDIX E - Benchmarks and Performance

Licensee  agrees to the  following  Benchmarks  for its  performance  under this
Agreement  and,  within ten (10) days of Licensee  achieving a Benchmark,  shall
notify PHS in writing that a given Benchmark has been achieved.

[***]





APPENDIX F--Commercial Development Plan

See Neurocrine Biosciences, Inc.'s License Application for L-259-97/0.

The Neurocrine  Bioscience,  Inc.  "Commercial  Development Plan" is attached to
this Agreement and/or hereby incorporated by reference into this Agreement.






APPENDIX G--PHS Reimbursable Patent Prosecution Costs

As set forth in Section 7.09 of this Agreement.

1. USPN 5,635,599 (= USSN 08/225,224),  Entitled,  "Circularly  Permuted Ligands
And Circularly Permuted Fusion Proteins",  Inventors: Drs. Ira H. Pastan, Robert
Kreit~nan, and Raj K. Puri.
[***]

2. USSN 08/722,258 (= CIP of USSN 08/225,224),  Entitled,  "Circularly  Permuted
Ligands and  Circularly  Permuted  Chimeric  Molecules",  Drs. Ira H. Pastan and
Robert Kreitman.
[***]

3. USSN 08/616,785,  Entitled  "Convention-enhanced  Drug Delivery",  Inventors:
Drs. Douglas W. Laske,  Edward H. Oldfield,  Richard H. Bobo, Robert L. Denrick,
and Paul F. Morrison.
[***]

TOTAL AMOUNT:  [***]