NEUROBIOLOGICAL TECHNOLOGIES INC /CA/
10QSB, EX-10.23, 2000-11-14
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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UNIVERSITY OF CALIFORNIA, BERKELEY

OFFICE OF TECHNOLOGY LICENSING



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


                    OPTION TO NEGOTIATE AN EXCLUSIVE LICENSE



                                     BETWEEN



                       NEUROBIOLOGICAL TECHNOLOGIES, INC.



                                       AND



                   THE REGENTS OF THE UNIVERSITY OF CALIFORNIA



                                       FOR



                       INHIBITION OF ABNORMAL CELL GROWTH
                  WITH CORTICOTROPIN-RELEASING HORMONE ANALOGS



UC Case No.:  B00-005
U.S. Patent Application No.:  09/400,716





<PAGE>



Table of Contents

ARTICLE                                                                     PAGE
-------                                                                     ----

1  BACKGROUND                                                                  1
2  DEFINITIONS                                                                 3
3  GRANT OF OPTION FOR EXCLUSIVE LICENSE                                       5
4  OPTION FEES                                                                 7
5  EXERCISE OF THE OPTION                                                      8
6  GOVERNMENT RIGHTS                                                           8
7  PATENT PROSECUTION AND MAINTENANCE                                          9
8  LIFE OF THE AGREEMENT                                                      11
9  PROSPECTIVE TERMS OF THE LICENSE AGREEMENT                                 11
10 DUE DILIGENCE                                                              12
11 REPORTING OBLIGATIONS                                                      12
12 TERMINATION BY REGENTS                                                     13
13 TERMINATION BY OPTIONEE                                                    13
14 LIMITED WARRANTY                                                           13
15 INDEMNIFICATION                                                            14
16 USE OF NAMES AND TRADEMARKS                                                15
17 NOTICES                                                                    15
18 CONFIDENTIALITY                                                            15
19 ASSIGNABILITY                                                              17
20 LATE PAYMENTS                                                              17
21 SCOPE OF AGREEMENT                                                         17
22 SEVERABILITY                                                               18
23 APPLICABLE LAW                                                             18
24 MISCELLANEOUS                                                              18
   APPENDIX A                                                                 20




<PAGE>


UNIVERSITY OF CALIFORNIA, BERKELEY

OFFICE OF TECHNOLOGY LICENSING


                    OPTION TO NEGOTIATE AN EXCLUSIVE LICENSE

                                       FOR

                     CORTICOTROPIN-RELEASING HORMONE ANALOGS

                                                           U.C. Case No: B00-005



This option agreement  ("Agreement")  effective July 15, 2000, is by and between
the Regents of the University of  California,  a California  Corporation,  whose
legal address is 1111  Franklin  Street,  12th Floor,  Oakland,  CA  94607-5200,
acting  through  its  Office  of  Technology  Licensing,  at the  University  of
California,  Berkeley, 2150 Shattuck Avenue, Suite 510, Berkeley, CA 94720-1620,
("Regents") and Neurobiological Technologies, Inc. a Delaware corporation having
a place  of  business  at 3260  Blume  Drive,  Suite  500,  Richmond,  CA  94806
("Optionee"). The parties agree as follows:

1.       BACKGROUND

         1.1      A joint  invention  has arisen  (collectively  referred  to as
                  "Invention") entitled, *******; and to Regents' Patent Rights,
                  as  hereinafter   defined,  and  which  are  directed  to  the
                  Invention.

         1.2      Regents has an assignment  of the Regents'  Patent Rights from
                  *******.

         1.3      Regents and Loyola  University,  Chicago  have entered into an
                  interinstitutional  agreement  in which  the  parties  to that
                  agreement have agreed that Regents shall license  Regents' and
                  Loyola University,  Chicago joint interest in the Invention on
                  behalf of both institutions.

THE SYMBOL  "*******" IS USED TO INDICATE THAT A PORTION OF THE EXHIBIT HAS BEEN
OMITTED AND FILED  SEPARATELY  WITH THE COMMISSION.  CONFIDENTIAL  TREATMENT HAS
BEEN REQUESTED WITH RESPECT TO THE OMITTED PORTIONS.


<PAGE>


         1.4      Regents, Loyola University,  Chicago and Optionee wish to have
                  the Invention  further  developed and marketed at the earliest
                  possible time in order to produce  products for public use and
                  benefit.

         1.5      Development of the Invention was sponsored by a grant from the
                  Cancer  Research  Coordinating  Committee of the University of
                  California  ******* and by a grant from the  National  Science
                  Foundation *******.

         1.6      As a consequence of ******* funding from the National  Science
                  Foundation,  The  Regents  elected  to  retain  title  to  the
                  Invention  subject to the rights of the U.S.  Government under
                  35 USC 200-212 and  implementing  regulations,  including that
                  Regents,  in turn,  has granted back to the U.S.  Government a
                  non-exclusive, non-transferable,  irrevocable, paid-up license
                  to practice or have  practiced  the Invention for or on behalf
                  of the United States throughout the world.

         1.7      Optionee  wishes to option rights (the  "Option") from Regents
                  to test and evaluate  the  Invention  and to obtain  rights to
                  negotiate the terms of the License  Agreement  with Regents in
                  order to pursue commercial development of the Invention and to
                  make,  have  made,  use,  import,  offer  for  sale,  and sell
                  products related thereto.

         1.8      Regents  wishes  to grant to  Optionee  the  right to test and
                  evaluate  the  Invention  in  order  for the  Invention  to be
                  developed, utilized and marketed to the fullest extent so that
                  the products  therefrom  and other  benefits can be enjoyed by
                  the general public.

         1.9      Optionee is a "small  entity" as defined in 37 CFRss.1.9 and a
                  "small-business concern" defined in 15 U.S.C. ss.632.


                                     Page 2
<PAGE>

         1.10     Optionee   entered   into  a   Secrecy   Agreement   ("Secrecy
                  Agreement")  with  Regents,  effective  October  26,  1999 and
                  terminating  on October 26, 2004 for the purpose of evaluating
                  the Invention.

2.       DEFINITIONS

         2.1      "Invention" is defined in Art. 1.1.

         2.2      "Regents'  Patent  Rights"  means the  Regents'  and  Loyola's
                  interest in the following Patents and Patent  applications and
                  the foreign  patents  and patent  applications  elected  under
                  Article 7.4:

                  (a)      *******;   and/or   any   divisions,   continuations,
                           reissues, or reexaminations  thereof and/or claims in
                           continuations-in-part   that  are  supported  in  the
                           specification of *******;

                  (b)      and  all  other  international   patents  and  patent
                           applications  that  claim  the  convention   priority
                           benefits of *******.

         2.3      "Licensed  Method" means any method or process that is covered
                  by Regents' Patent Rights, or any method or process the use or
                  practice  of which would  constitute  an  infringement  of any
                  pending or issued claims within Regents' Patent Rights.

         2.4      "Licensed  Products  and  Services"  means  (1)  any  product,
                  service,  apparatus,  kit or  component  part thereof or other
                  material  produced by, or used in, the Licensed  Method or the
                  manufacture,  sale,  offer  for  sale  or  import  which  in a
                  particular country:

                  (a)      Is covered by a valid claim of any issued,  unexpired
                           patent within Regents' Patent Rights.  A claim within
                           Regents'  Patent Rights shall be presumed to be valid
                           unless  and until it has been held to be invalid by a
                           final  judgment of a court of competent  jurisdiction
                           from which no appeal can be or is taken; or

                  (b)      Is covered by any claim within Regents' Patent Rights
                           being prosecuted in a pending application directed to
                           the Invention.



                                     Page 3
<PAGE>

         2.5      "Licensed Field of Use" means the use of the Licensed Products
                  and Services or Licensed  Methods  identified  in Articles 2.3
                  and 2.4 only for psoriasis and cancer therapeutics.

         2.6      "Licensed  Territory"  means  United  States of  America,  its
                  territories  and  possessions,  any  foreign  countries  where
                  Regents has filed or obtained corresponding foreign patents or
                  applications,  and any other foreign countries  throughout the
                  world for  which  Regents  may  lawfully  grant a  license  of
                  Regents' Patent Rights.

         2.7      "License  Agreement" means the exclusive  License Agreement to
                  be  negotiated  between  Optionee and Regents upon exercise of
                  the Option in this Agreement.

         2.8      "Commercialization  Plan"  means  a  written  plan  containing
                  information regarding, but not limited to:

                  (a)      a  development   plan  including  major   performance
                           milestones  to  develop  the  Licensed  Products  and
                           Services or Licensed  Methods and the estimated  time
                           needed to accomplish;

                  (b)      products  to be  developed  under the  invention  and
                           projected first five years of sales;

                  (c)      market strategy to be employed and the organizational
                           capability   needed  to  successfully   execute  that
                           strategy;

                  (d)      expectations   as  to  how/where   products  will  be
                           produced and quality assured;

                  (e)      identification and backgrounds of key personnel to be
                           involved in the commercialization  program (technical
                           marketing and management);

                  (f)      financial resources needed to implement and carry out
                           commercialization  plan and Optionee's  capability to
                           finance or obtain financing required.



                                     Page 4
<PAGE>

         2.9      "Research and Development  Plan" means a brief  description of
                  the research (technical and/or marketing)  including milestone
                  dates,  to be  conducted  by Optionee  during the term of this
                  Agreement  to  develop  information  needed  to  proceed  with
                  exercise of the option contained in this Agreement.

3.       GRANT OF OPTION FOR EXCLUSIVE LICENSE

         3.1      Subject to the limitations  set forth in this  Agreement,  and
                  subject to the licenses granted to the U.S.  Government as set
                  forth in Article 1.6,  Regents hereby grants to Optionee under
                  the Regents'  Patent Rights,  limited to the Licensed Field of
                  Use and Licensed  Territory,  a right to practice the Licensed
                  Methods and a right to make and use the Licensed  Products and
                  Services to test and evaluate  them to determine  the interest
                  by  Optionee  in  exercising  the  Option  contained  in  this
                  Agreement.

         3.2      Subject to the limitations  set forth in this  Agreement,  and
                  subject  to  the  licenses  granted  to the  U.S.  Government,
                  Regents  hereby grants to Optionee an exclusive,  time-limited
                  right to  negotiate,  in good faith,  the terms of the License
                  Agreement,  limited to the Licensed  Field of Use and Licensed
                  Territory.

         3.3      The term of this  Agreement is for one year from the effective
                  date of this Agreement and renewable for one  additional  year
                  pursuant  to  Article  4.2,  and  further  renewable  for  one
                  additional year under Article 4.3.

         3.4      During the period this  Agreement  is in effect,  Regents will
                  not license  Patent  Rights,  in the Licensed Field of Use and
                  Licensed  Territory,  to any other  party  other than the U.S.
                  Government,  and  otherwise  not encumber the Patent Rights in
                  any manner inconsistent with the provisions of this Agreement.



                                     Page 5
<PAGE>

         3.5      The rights and  licenses  granted in  Articles  3.1 and 3.2 of
                  this Agreement do not constitute a license to make, have made,
                  or use Licensed Products and Services or a license to practice
                  the Licensed Methods except for the sole purpose of conducting
                  an  evaluation  to  determine  the  interest  by  Optionee  in
                  exercising the rights granted in Article 3.2 above.  The right
                  to  import,  offer for sale,  or sell  Licensed  Products  and
                  Services is expressly excluded from this Agreement.

         3.6      Optionee shall notify Regents promptly, at any time during the
                  term of this Option,  if Optionee  decides not to exercise the
                  Option.  Optionee shall provide Regents, in reasonable detail,
                  the basis for such  determination.  Such Notice of Termination
                  shall be subject to Article 17 (Notices) and termination  will
                  be effective  sixty (60) days from the effective  date of such
                  notice.

         3.7      Nothing in this Agreement will be deemed to limit the right of
                  Regents to publish any and all technical  data  resulting from
                  any research  performed by Regents  relating to the Invention,
                  and to make  and  use the  Invention,  Licensed  Products  and
                  Services,  Licensed  Methods,  and  associated  technology for
                  educational  and  research  purposes,  and  for  purposes  not
                  inconsistent with this Agreement.

         3.8      Optionee will have a continuing responsibility to keep Regents
                  informed of any changes to its  large/small  entity status (as
                  defined by the United States Patent and Trademark Office)

4.       OPTION FEES

         4.1      As  consideration  for this  Agreement,  Optionee  must pay to
                  Regents a  non-refundable  fee of Twelve Thousand U.S. Dollars
                  ($12,000) upon signing this Agreement.



                                     Page 6
<PAGE>

         4.2      If Optionee  wishes to renew this  Agreement for an additional
                  one year,  Optionee must provide Regents with a summary of its
                  progress  during  the term of this  Agreement,  along  with an
                  action plan  reasonably  acceptable  to Regents that  outlines
                  Optionee's  proposed  course  of  action  during  the  renewal
                  period,  and must pay to Regents an additional Twelve Thousand
                  U.S.  Dollars  ($12,000)  on or  before  July 15,  2001.  This
                  election to renew this  Agreement  must be provided in writing
                  to the address given in Article 17 (Notices).

         4.3      If  Optionee  wishes  to  renew  this  Agreement  for a second
                  additional  one year,  Optionee  must  provide  Regents with a
                  summary  of its  progress  during  the  second  year  of  this
                  Agreement,  along with an action plan reasonably acceptable to
                  Regents that  outlines  Optionee's  proposed  course of action
                  during  the  renewal   period  and  must  pay  to  Regents  an
                  additional Twelve Thousand U.S. Dollars ($12,000) on or before
                  July 1, 2002.  This election to renew this  Agreement  must be
                  provided  in  writing  to the  address  given  in  Article  17
                  (Notices).

         4.4      If at any time during this  Agreement,  a United States patent
                  is issued under Regents  Patent Rights,  an additional  option
                  fee of Five  Thousand  Dollars  ($5,000) will be due within 30
                  days of notification of such issuance.  All future option fees
                  required under the  Agreement,  as stated in Articles 4.2. and
                  4.3, will also be increased by Five Thousand Dollars ($5,000).

5.       EXERCISE OF THE OPTION

         5.1      If Optionee elects to exercise its Option  contained herein to
                  negotiate  a  License  Agreement  under  Article  3.2  hereof,
                  Optionee  must  notify  Regents in  writing,  as  directed  in
                  Article  17  (Notices),   prior  to  the  expiration  of  this
                  Agreement.  In the notice, Optionee will specify the rights it
                  wishes to negotiate  in a license from the Regents,  including
                  (1) the  particular  patent



                                     Page 7
<PAGE>

                  applications  and patents under Regents' Patent Rights and (2)
                  the  particular  territories  under  Licensed  Territory.  The
                  notice  will  also  include a  Commercialization  Plan for the
                  Invention that is reasonably acceptable to Regents. Failure of
                  Optionee  to so notify  Regents is deemed to be an election by
                  Optionee not to secure a license.

         5.2      The License Agreement  negotiated upon exercise of this option
                  will contain provisions as specified in Article 9 (Prospective
                  Terms Of The License Agreement).

         5.3      If Optionee elects to exercise the Option the parties agree to
                  promptly commence  negotiations,  in good faith, for a License
                  Agreement to be entered  into no later than *******  after the
                  date of written notice provided by Optionee under Article 5.1.

         5.4      Optionee  will have no  residual  rights  upon  expiration  or
                  termination of this Agreement, or upon Optionee's decision not
                  to  enter  into a  License  Agreement  under  this  Agreement,
                  whichever is earlier.

6.       GOVERNMENT RIGHTS

         6.1      Unless Optionee is notified to the contrary, this Agreement is
                  subject  to all of the terms  and  conditions  of  Public  Law
                  96-517 as amended (35 USC  200-212),  and Optionee  shall take
                  all action necessary on its part as Optionee to enable Regents
                  to  satisfy  its  obligations   thereunder   relating  to  the
                  Inventions.

7.       PATENT PROSECUTION AND MAINTENANCE

         7.1      The  Regents  shall  diligently  prosecute  and  maintain  the
                  Regents'  Patent Rights using  counsel of the Regents'  choice
                  and  reasonably  satisfactory  to Optionee.  The Regents shall
                  provide Optionee with copies of all relevant  documentation so
                  that  Optionee may be informed and apprised of the



                                     Page 8
<PAGE>

                  continuing  prosecution,  and may provide  substantive comment
                  and input thereon,  and Optionee shall keep this documentation
                  confidential in accordance  with Article 18  (Confidentiality)
                  herein.

         7.2      Regents  shall  endeavor  to amend any patent  application  to
                  include  claims  requested by Optionee and required to protect
                  the products  and/or  processes  contemplated to be sold under
                  the License Agreement.

         7.3      Optionee  shall  reimburse  Regents  for all past and  present
                  costs and future costs that are incurred  under this Agreement
                  (with  the   exception  of  bills  already   reimbursed)   for
                  preparing, filing, prosecuting and maintaining Regents' Patent
                  Rights.

         7.4      Regents  will  endeavor  to obtain  patent  protection  on the
                  Inventions  in foreign  countries if available and if Optionee
                  so  elects.  Regents  will keep  Optionee  informed  as to any
                  foreign  patent bar dates.  Optionee  must  notify  Regents at
                  least two months prior to the foreign bar date of its election
                  to obtain  foreign  patents.  This notice  concerning  foreign
                  filing  shall  be in  writing,  must  identify  the  countries
                  desired, and reaffirm Optionee's  obligation to underwrite the
                  costs  thereof.  The absence of such a notice from Optionee to
                  Regents shall be considered an election not to secure  foreign
                  rights in the countries not included in the required notice.

         7.5      The  preparation,  filing,  prosecuting and maintenance of all
                  foreign patent  applications filed at Optionee's  request,  as
                  well as the  maintenance  of all  resulting  foreign  patents,
                  shall be at the sole expense of Optionee.  Such patents  shall
                  be held in the name of  Regents  and shall be  obtained  using
                  counsel  of  Regents'  choice,   reasonably   satisfactory  to
                  Optionee.

         7.6      Regents  shall have the right to file patent  applications  at
                  its own expense in any country in which the  Optionee  has not
                  elected to secure patent  rights,



                                     Page 9
<PAGE>

                  and such  applications  and  resultant  patents  shall  not be
                  subject to this Agreement.

         7.7      Optionee's obligation to reimburse Regents for costs specified
                  in Article 7.3 shall  continue  for so long as this  Agreement
                  remains  in  effect.  However,   Optionee  may  terminate  its
                  obligations  with  respect  to any  given  patent  application
                  within  any given  country  or  patent  upon  sixty  (60) days
                  written  notice to Regents.  Regents will  endeavor to curtail
                  patent  costs when such a notice is  received  from  Optionee.
                  Regents may continue  prosecution  and/or  maintenance of such
                  application(s)   or  patent(s)  at  its  sole  discretion  and
                  expense;  provided,  however,  that  Optionee  shall  have  no
                  further right or licenses thereunder.

7.8               Regents  shall  provide  statements  to  Optionee  showing the
                  amount to be  reimbursed  to Regents  under the  provisions of
                  this Article 7 (Patent  Prosecution And Maintenance).  Payment
                  to Regents shall be due within thirty (30) days of the date of
                  these statements.

8.       LIFE OF THE AGREEMENT

         8.1      Unless otherwise  terminated by operation of law or by acts of
                  the parties in  accordance  with the terms of this  Agreement,
                  this  Agreement is in full force and effect from the effective
                  date and will  remain in effect  for the period  specified  in
                  Article 3.3.

         8.2      Termination  of this  Agreement does not affect the rights and
                  obligations set forth in the following Articles:

                  Article 15                Indemnification
                  Article 16                Use Of Names And Trademarks
                  Article 18                Confidentiality
                  Article 20                Late Payments

                                    Page 10
<PAGE>

         8.3      Termination of this Agreement does not relieve Optionee of its
                  obligation  to pay any  monies due or owed at the time of such
                  termination and does not impair any accrued right of Regents.

9.       PROSPECTIVE TERMS OF THE LICENSE AGREEMENT


         9.1      The License Agreement resulting from this option must include,
                  but will not be limited to, the following provisions:

                  (a)      the grant of an  exclusive  right,  with the right to
                           sublicense,  to make, have made, use, sell, offer for
                           sale and import  Licensed  Products  and Services and
                           use Licensed  Method limited to the Licensed Field of
                           Use and the  Licensed  Territory  for the life of the
                           last to expire patent under Regents' Patent Rights;

                  (b)      *******;

                  (c)      *******;

                  (d)      *******;

                  (e)      *******;

                  (f)      diligence terms;

                  (g)      *******.

         9.2      The  License   Agreement   will  include  other  standard  and
                  customary   terms  normally   contained  in  similar   License
                  Agreements granted by Regents.

10.      DUE DILIGENCE

         10.1     Subject to Article 10.2,  Optionee shall diligently  undertake
                  the research  program outlined in its Research and Development
                  Plan summarized in Appendix A.



                                    Page 11
<PAGE>

         10.2     Optionee will exercise due diligence in conducting research on
                  potential commercial  applications and provide evidence of its
                  diligence pursuant to Article 11 (Reporting Obligations).

11.      REPORTING OBLIGATIONS

         11.1     During  the term of this  Agreement,  Optionee  shall  provide
                  Regents with semi-annual progress reports. These reports shall
                  be due on or before the following dates of each calendar year:

                  (a)      Feb. 28 for the  preceding  six month  period  ending
                           Dec. 31.

                  (b)      Aug. 31 for the  preceding  six month  period  ending
                           June 30.

         11.2     These reports shall include:

                  (a)      a  written  summary  of  Optionee's  progress  toward
                           developing   commercial   products   based   on   the
                           Invention;

                  (b)      an accounting  of the  financial and other  resources
                           devoted  to  any  technology  development  activities
                           pertaining to the Invention;

                  (c)      an update on Optionee's large/small entity status.

12.      TERMINATION BY REGENTS

         12.1     If  Optionee  violates  or fails to  perform  any term of this
                  Agreement,  then  Regents may give written  notice  (Notice of
                  Default) of such  default to  Optionee.  If Optionee  fails to
                  repair such default  within sixty (60) days of the date of the
                  Notice of  Default,  Regents has the right to  terminate  this
                  Agreement by a second written  notice (Notice of  Termination)
                  to Optionee.  If a Notice of  Termination is sent to Optionee,
                  this Agreement will  automatically  terminate on the effective
                  date of such notice.  These  notices are subject to Article 17
                  (Notices).

                                    Page 12
<PAGE>

13.      TERMINATION BY OPTIONEE

         13.1     Optionee has the right at any time to terminate this Agreement
                  or to terminate its rights to Regents' Patent Rights by giving
                  notice in writing to Regents. Such Notice of Termination shall
                  be subject to Article 17 (Notices) and such termination  shall
                  be effective  sixty (60) days from the effective  date of such
                  notice.

         13.2     Any  termination  pursuant  to Article  13.1 will not  relieve
                  Optionee of any  obligation  or liability  incurred  under the
                  Agreement.

14.      LIMITED WARRANTY

         14.1     Regents  warrants to Optionee  that it has the lawful right to
                  grant the option contained herein.

         14.2     THIS AGREEMENT AND ASSOCIATED  INVENTION ARE PROVIDED  WITHOUT
                  WARRANTY  OF  MERCHANTABILITY  OR  FITNESS  FOR  A  PARTICULAR
                  PURPOSE OR ANY OTHER  WARRANTY,  EXPRESS OR  IMPLIED.  REGENTS
                  MAKES NO REPRESENTATION OR WARRANTY THAT THE LICENSED PRODUCTS
                  AND SERVICES,  BIOLOGICAL  MATERIALS OR LICENSED  METHODS WILL
                  NOT INFRINGE ANY PATENT OR OTHER PROPRIETARY RIGHT.

         14.3     IN NO EVENT WILL REGENTS BE LIABLE FOR ANY INCIDENTAL, SPECIAL
                  OR  CONSEQUENTIAL  DAMAGES  RESULTING  FROM  EXERCISE  OF THIS
                  AGREEMENT OR THE USE OF THE LICENSED PRODUCTS AND SERVICES.

         14.4     Nothing in this Agreement may be construed as:



                                    Page 13
<PAGE>

                  (a)      a  warranty  or  representation  by Regents as to the
                           validity or scope of any Regents' Patent Rights;

                  (b)      a warranty  or  representation  that  anything  made,
                           used, sold, offered for sale, imported,  or otherwise
                           disposed  of under any  license  of  Regents'  Patent
                           Rights  is or  will  be  free  from  infringement  of
                           patents of third parties; or

                  (c)      an  obligation  by either party to bring or prosecute
                           actions or suits  against  third  parties  for patent
                           infringement;

                  (d)      conferring by implication,  estoppel or otherwise any
                           license or rights under any patents of Regents  other
                           than  Regents'   Patent  Rights  as  defined  herein,
                           regardless  of whether  such  patents are dominant or
                           subordinate to Regents' Patent Rights;

                  (e)      an obligation to furnish any know-how not provided in
                           Regents' Patent Rights.

15.      INDEMNIFICATION

                  15.1     Optionee  indemnifies,  holds  harmless  and  defends
                           Regents,  its officers,  employees,  and agents;  the
                           sponsors of the research  that led to the  Invention;
                           and  the   inventors   of  the   patents  and  patent
                           application  in  Regents'  Patent  Rights  and  their
                           employers against any and all claims,  suits, losses,
                           damages,  costs, fees, and expenses resulting from or
                           arising out of exercise of this Agreement.

                  15.2     Regents shall promptly  notify Optionee in writing of
                           any claim or suit brought  against Regents in respect
                           of which Regents  intends to invoke the provisions of
                           this Article 15. Optionee will keep Regents  informed
                           on a  current  basis  of its  defense  of any  claims
                           pursuant to this Article 15.

16.      USE OF NAMES AND TRADEMARKS

                  16.1     Nothing   contained  in  this   Agreement   shall  be
                           construed as  conferring  any right upon  Optionee to
                           use in advertising,  publicity,  or other promotional
                           activities any name, trade name, trademark,  or other
                           designation  of  The



                                    Page 14
<PAGE>

                           Regents of the University of California or any of its
                           campuses  unless  required by law or  consented to in
                           writing  by  Regents,  which  consent  shall  not  be
                           unreasonably withheld.

17.      NOTICES

                  17.1     All notices under this  Agreement  must be in writing
                           and deposited in the United  States mail,  registered
                           or certified, and addressed as follows:

                  To Regents:      The Regents of the University of California
                                   Office of Technology Licensing
                                   2150 Shattuck Avenue, Suite 510
                                   Berkeley, CA 94720-1620
                                   Attn.:  Director (UC Case No. B00-005)

                  To Optionee:     Neurobiological Technologies, Inc.
                                   3260 Blume Drive, Suite 500
                                   Richmond, CA 94806
                                   Attn:  President

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

18.      CONFIDENTIALITY

         18.1     Optionee and Regents respectively shall hold the other party's
                  proprietary   business,   terms  of  this  Agreement,   patent
                  prosecution   material,   and  technical  information  against
                  disclosure to third parties with the same degree of care as it
                  exercises  with  its own  data  and  license  agreements  of a
                  similar nature.

         18.2     Nothing in this  Agreement  restricts the right of Optionee or
                  Regents  to  use,   disclose,   or  otherwise  deal  with  any
                  information or data that:

                  (a)      at the time of  disclosure  to a  receiving  party is
                           generally  available  to  the  public  or  thereafter
                           becomes   generally   available   to  the  public  by
                           publication  or  otherwise  through  no  act  of  the
                           receiving party;

                                    Page 15
<PAGE>

                  (b)      the receiving party can show by written record was in
                           its possession  prior to the time of disclosure to it
                           and was not acquired  directly or indirectly from the
                           disclosing party;

                  (c)      is  independently  made  available  to the  receiving
                           party as a matter of right by a third party;

                  (d)      is subject to disclosure under the California  Public
                           Records Act or other requirements of law.

         18.3     Regents  is  free  to  release  to the  inventors  and  senior
                  administrators employed by Regents the terms and conditions of
                  this  Agreement.  If such release is made,  Regents shall give
                  notice of the  confidential  nature and shall request that the
                  recipient  does not  disclose  such  terms and  conditions  to
                  others.  If a  third  party  inquires  whether  a  license  to
                  Regents' Patent Rights is available,  Regents may disclose the
                  existence  of this  Agreement  and the  extent of the grant in
                  Article 3 (Grant  Of Option  For  Exclusive  License)  to such
                  third party, but will not disclose the name of Optionee or any
                  other terms or  conditions  of this  Agreement,  except  where
                  Regents are required to release  information  under either the
                  California Public Records Act or other applicable law.

         18.4     Optionee and Regents will destroy or return to the  disclosing
                  party proprietary  information  received from the other in its
                  possession  within  fifteen (15) days  following the effective
                  date of termination.  However,  each party may retain one copy
                  of proprietary information for archival purposes in nonworking
                  files.  Optionee and Regents  will provide each other,  within
                  thirty (30) days following termination,  with a written notice
                  that proprietary information has been returned or destroyed.

         18.5     The terms of this Article 18 (Confidentiality) will not expire
                  until five (5) years from the official date of  termination of
                  this Agreement.

                                    Page 16
<PAGE>

19.      ASSIGNABILITY

         19.1     This  Agreement is binding upon and shall inure to the benefit
                  of Regents,  its successors and assigns, but shall be personal
                  to, and be personal  property of,  Optionee and  assignable by
                  Optionee  only  with  the  written  consent  of  Regents.  The
                  Optionee may assign the Agreement  without such consent to any
                  party with which  Optionee  shall  merge or to which  Optionee
                  shall transfer all or substantially all of its assets. Regents
                  shall be notified  prior to any  assignment  under  Article 17
                  (Notices).

20.      LATE PAYMENTS

         20.1     If any payments are not received by Regents when due, Optionee
                  must pay to Regents  interest  charges on such  payments  at a
                  rate  of  ten  percent  (10%)  per  annum.  Such  interest  is
                  calculated  from  the  date  payment  was due  until  the date
                  actually received by Regents.

21.      SCOPE OF AGREEMENT

         21.1     This  Agreement,  together  with the Secrecy  Agreement  dated
                  October 26, 1999 constitutes the entire agreement  between the
                  parties.  No  representative  of Regents or Optionee  has been
                  authorized to make any  representation,  warranty,  or promise
                  not contained herein.

22.      SEVERABILITY

         22.1     The  provisions of this  Agreement are  severable,  and if any
                  provision  of this  Agreement is  determined  to be invalid or
                  unenforceable   under  any  controlling   body  of  law,  such
                  invalidity  or  enforceability  will not in any way affect the
                  validity or enforceability of the remaining provisions hereof.

23.      APPLICABLE LAW

         23.1     THIS AGREEMENT WILL BE CONSTRUED,  INTERPRETED, AND APPLIED IN
                  ACCORDANCE WITH THE LAWS OF THE STATE OF



                                    Page 17
<PAGE>

                  CALIFORNIA.  IF EITHER PARTY  UNDERTAKES  LEGAL ACTION ARISING
                  UNDER THIS  AGREEMENT,  THEN SUCH LEGAL ACTION WILL TAKE PLACE
                  IN SAN FRANCISCO,  CALIFORNIA.  THE  PREVAILING  PARTY WILL BE
                  ENTITLED TO REASONABLE  ATTORNEYS'  FEES IN ADDITIONS TO COSTS
                  AND NECESSARY DISBURSEMENTS.

24.      MISCELLANEOUS

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

         24.2     This  Agreement  will not be binding upon the parties until it
                  has been signed below on behalf of each party, in which event,
                  it shall be effective as of the date recited on page one.

         24.3     No amendment or modification  hereof shall be valid or binding
                  upon the  parties  unless made in writing and signed on behalf
                  of each party.

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

THE REGENTS OF THE UNIVERSITY              NEUROBIOLOGICAL
OF CALIFORNIA                              TECHNOLOGIES, INC.

Signature
          /s/ William A. Hoskins           Signature /s/ Paul E. Freiman
          --------------------------------           ---------------------------

Name      William A. Hoskins               Name      Paul E. Freiman
          --------------------------------           ---------------------------

          Director, Office of Technology
Title     Licensing                        Title     President and CEO
          --------------------------------           ---------------------------

Date      July 27, 2000                    Date      July 26, 2000
          --------------------------------           ---------------------------



                                    Page 18
<PAGE>




                   APPENDIX A - RESEARCH AND DEVELOPMENT PLAN

                        PROPOSED WORKPLAN FOR CRH ANALOGS


It  has  been   ascertained   that   aforementioned   CRH  analogs  differ  from
Neurobiological  Technologies,   Inc's.  CRH  (XERECEPT(TM))  in  at  least  the
following three properties:

1.       CRH-analogs exhibit stronger anti-neoplastic properties than CRH

2.       CRH-analogs are weaker anti-edema compounds than CRH

3.       Hypotension is less likely to occur with CRH-analogs than with CRH

A work plan would  encompass  in vivo models to screen  CRH-analogs  in terms of
arriving at the most optimum  CRH-analog  for clinical  purposes.  Such a screen
should  also  review  the  possibility  of  combining  CRH and a  CRH-analog  to
potentially  create a  cocktail  that would  possess  both  anti-neoplastic  and
anti-edema  properties.  After "proof of concept" is established in vivo, closer
examination of manufacturing details and toxicology studies would be necessary.










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