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                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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                                    FORM 8-K

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                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the

                         Securities Exchange Act of 1934

     Date of Report (Date of the earliest event reported): November 27, 2001


                          NEUROCRINE BIOSCIENCES, INC.
             (Exact name of registrant as specified in its charter)

        DELAWARE                     0-28150                   33-0525145
    (State or other           (Commission File Number)       (IRS Employer
     jurisdiction of                                      Identification Number)
     incorporation)

   10555 SCIENCE CENTER DRIVE, SAN DIEGO, CA                       92121
  (Address of principal executive offices)                       (Zip Code)

       Registrant's telephone number, including area code: (858) 658-7600



                                       N/A

         (Former name or former address, if changed since last report.)

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This Current Report on Form 8-K is filed by Neurocrine Biosciences, Inc., a Delaware corporation (the "Company"), in connection with the matters described herein. ITEM 5. OTHER EVENTS On November 27, 2001, the Company announced the dosing of seven subjects in the initiation of a Phase I clinical trial with the Company's proprietary, orally active, gonadotropin-releasing hormone antagonist. A copy of the Company's press release announcing the initiation of the clinical trial, dated November 27, 2001, is attached hereto as Exhibit 99.1 and incorporated herein by reference. ITEM 7. EXHIBITS (c) Exhibits. The following exhibits are filed herewith: Exhibit Number Description of Exhibit ------ ---------------------- 99.1 Press Release, dated November 27, 2001.

SIGNATURES Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Dated: November 27, 2001 /s/ Paul W. Hawran ----------------- ------------------ Paul W. Hawran Executive Vice President and Chief Financial Officer

EXHIBIT INDEX EXHIBIT NUMBER DESCRIPTION - -------- ------------------------------------------------------------ 99.1 Press Release, dated November 27, 2001.

                                                                    Exhibit 99.1


FOR IMMEDIATE RELEASE
Contact at Neurocrine Biosciences
Claudia Jones or Paul Hawran
(858) 658-7600



             NEUROCRINE BIOSCIENCES ANNOUNCES INITIATION OF PHASE I
                     CLINICAL TRIAL WITH ORALLY ACTIVE GNRH
                   ANTAGONIST FOR WOMEN'S HEALTH DISORDERS AND
                                 PROSTATE CANCER

San Diego, CA, November 27, 2001 - Neurocrine  Biosciences,  Inc.  (NASDAQ:NBIX)
announced  today the  completion of dosing of the first cohort of seven subjects
in the Phase I clinical  trial with the company's  proprietary,  orally  active,
gonadotropin-releasing  hormone  (GnRH)  antagonist.  GnRH  is  a  hormone  that
regulates male and female reproductive  hormones.  Injectable peptide drugs that
block the action of GnRH have found  broad  clinical  utility in women's  health
disorders  and  prostate  cancer in males.  This trial is an oral  single  dose,
double-blind,  placebo controlled, dose escalating Phase I study being conducted
in up to 56 normal,  healthy  volunteers  and is  designed  to study the safety,
pharmacokinetics and pharmacodynamics of a number of doses of this compound.  In
addition,  secondary endpoints in the study will assess suppression of pituitary
gonadotropins; an important surrogate measurement of efficacy.

"This is an important  milestone  towards  developing  a potential  new class of
drugs to  compete  in a $2.5  billion  market in  women's  health  and  prostate
cancer," said Dr. Henry Pan, Executive Vice President of Clinical Development of
Neurocrine.

Currently available GnRH agonists and antagonists are peptides,  which generally
are given as injectable  depots.  We believe  orally  active,  non-peptide  GnRH
antagonists should provide increased dosing flexibility, convenience and greater
patient  acceptability  over these  current  treatments.  Using high  throughput
parallel  chemical  synthesis of designed  libraries,  combined with preclinical
safety, pharmacokinetic (PK) and metabolic properties, Neurocrine's approach has
rapidly  produced  several  series of  proprietary  highly  potent,  non-peptide
compounds.

"This  program has moved very rapidly from basic  research  through  preclinical
studies to Phase I clinical studies and continues to demonstrate the strength of
Neurocrine's integrated drug discovery and development  capabilities," said Paul
Conlon, Vice-President of Biology.

                                     -MORE-

Neurocrine  recently announced the award of a peer-reviewed  Phase II SBIR grant
from the National  Institutes of Health (NIH) to fund the  development of orally
active GnRH antagonists.  This grant will total  approximately $1 million over a
two-year period and will support  research to discover and evaluate  current and
next  generation  small molecule GnRH receptor  antagonists for the treatment of
uterine fibroids, endometriosis, breast cancer, prostate cancer, infertility and
other disorders linked to the endocrine system.

Neurocrine  Biosciences,  Inc.  is  a  product-based  biopharmaceutical  company
focused on  neurological  and  endocrine  diseases  and  disorders.  Our product
candidates  address  some of the  largest  pharmaceutical  markets  in the world
including insomnia, anxiety,  depression,  malignant brain tumors and peripheral
cancers,  diabetes,   multiple  sclerosis,   irritable  bowel  syndrome,  eating
disorders,  pain,  stroke,  and  certain  female  health  disorders.  Neurocrine
Biosciences,  Inc. news releases are available through the Company's website via
the Internet at http://www.neurocrine.com.


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In addition to historical  facts,  this press release  contains  forward-looking
statements that involve a number of risks and  uncertainties.  Among the factors
that could cause actual results to differ materially from those indicated in the
forward  looking   statements  are  risks  and  uncertainties   associated  with
Neurocrine's  GnRH development  program and  Neurocrine's  business and finances
including,  but not limited to, risk that Neurocrine's GnRH antagonist compounds
will not  successfully  proceed  through  clinical  trials or that  later  stage
clinical  trials  will not show  that they are  effective  in  treating  humans;
determinations  by  regulatory  and  governmental  authorities;   dependence  on
corporate collaborators who could terminate their relationships with the Company
at any time;  uncertainties  relating  to  patent  protection  and  intellectual
property   rights  of  third  parties;   impact  of  competitive   products  and
technological  changes;  availability of capital and cost of capital;  and other
material  risks. A more complete  description of these risks can be found in the
Company's annual report on Form 10K for the year ended December 31, 2000 and the
Company's  quarterly  report  on Form 10Q each of which  should  be read  before
making any  investment in  Neurocrine  common  stock.  Neurocrine  undertakes no
obligation  to update the  statements  contained in this press release after the
date hereof.

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