NEUROCRINE BIOSCIENCES INC
10-K, 2000-03-30
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              ---------------------

                                    FORM 10-K
                              ---------------------

                                   (Mark One)

                [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                     For the fiscal year ended December 31,
                                      1999

                                       OR

              [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                        For the transition period from to

                         Commission file number: 0-28150


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

             DELAWARE                                       33-0525145
     (State or other jurisdiction                        (I.R.S. Employer
  of incorporation or organization)                   Identification Number)

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

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


     Securities registered pursuant to Section 12(b) of the Act: None
     Securities  registered  pursuant to Section 12(g) of the Act: Common Stock,
$0.001 par value

     Indicate by check mark  whether the  registrant:  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days.  Yes [X]  No [ ]

     Indicate by check mark if disclosure of delinquent  filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best  of  the  registrant's   knowledge,  in  definitive  proxy  or  information
statements  incorporated  by  reference  in Part  III of this  Form  10-K or any
amendment to this Form 10-K. [X]

     The aggregate  market value of the voting stock held by  non-affiliates  of
the Registrant as of March 15, 2000 totaled  approximately  $527.6 million based
on the closing  stock price as reported  by the Nasdaq  National  Market.  As of
March 15, 2000, there were 21,830,471  shares of the Registrant's  Common Stock,
$.001 par value per share, outstanding.

                       DOCUMENTS INCORPORATED BY REFERENCE

     Certain  information  required by Part III of Form 10-K is  incorporated by
reference  from the  Registrant's  Proxy  Statement  for the  Annual  Meeting of
Stockholders to be held on May 24, 2000 (the "Proxy  Statement"),  which will be
filed with the  Securities  and  Exchange  Commission  within 120 days after the
close of the Registrant's fiscal year ended December 31, 1999.


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<PAGE>


                                     PART I

ITEM 1.  BUSINESS

GENERAL

     Neurocrine Biosciences, Inc. (the "Company") was incorporated in California
on January 17,  1992 and was  reincorporated  in  Delaware  in March  1996.  The
Company is a neuroscience-based company focused on the discovery and development
of   novel   therapeutics   for    neuropsychiatric,    neuroinflammatory    and
neurodegenerative diseases and disorders. The Company's neuroscience,  endocrine
and immunology  disciplines  provide a unique  biological  understanding  of the
molecular interaction between central nervous,  immune and endocrine systems for
the development of therapeutic interventions for anxiety, depression,  insomnia,
stroke, malignant brain tumors, multiple sclerosis, obesity and diabetes.

     The  following   Business  section  contains   forward-looking   statements
concerning the continuation of the Company's strategic alliances and the receipt
of payments thereunder, the identification of drug targets and selection of lead
compounds for clinical  development,  the commencement and successful conclusion
of clinical  trials,  the receipt of  regulatory  approvals,  and the  potential
development  of future  commercial  products.  Such  forward-looking  statements
necessarily involve risks and uncertainties.  The Company's actual results could
differ materially from those anticipated in these forward-looking  statements as
a result of  certain  factors,  including,  without  limitation,  that  research
funding and development will continue under the Company's  collaborations,  that
research  and   development   candidates  will   successfully   proceed  through
pre-clinical and early stage clinical trials,  that development  candidates will
prove  effective for  treatment in humans in later stage  clinical  trials,  the
timely  receipt  of  regulatory   clearances   required  for  clinical  testing,
manufacturing  and  marketing  of  products,  the  potential  adverse  impact of
competitive  technologies,  products,  and intellectual property rights of third
parties,  and the failure to achieve product  development and  commercialization
goals.  Actual results and the timing of certain events could differ  materially
from those indicated in the forward-looking  statements as a result of these and
other factors. See "Risk Factors."

     Neurocrine  currently  has  five  programs  in  clinical  development.  The
Company's  CRF  receptor  antagonist  project is  currently in Phase II clinical
development  with its partner,  Janssen  Pharmaceutica,  N.V.  ("Janssen"),  for
anxiety/depression.  In 1999 the Company  completed a Phase II clinical trial in
transient  insomnia with a GABA receptor  subtype  agonist and a second Phase II
clinical  trial with  Neurocrine's  Altered  Peptide  Ligand  (APL)  compound in
patients with multiple  sclerosis.  The Company is currently  conducting a Phase
I/II trial with its IL-4 Fusion Toxin for glioblastoma  (malignant brain tumors)
and a Phase I safety and dose  escalating  clinical  study with its APL compound
for Type I Diabetic patients.

PRODUCTS UNDER DEVELOPMENT

     The following  table  summarizes  Neurocrine's  most  advanced  products in
research  and clinical  development.  This table is qualified in its entirety by
reference to the more  detailed  descriptions  appearing  elsewhere in this Form
10-K.

- ------------------------------------------------------------------------------
Program                   Indication              Status*    Commercial Rights
- ------------------------------------------------------------------------------
CRF Receptor Antagonist    Anxiety/Depression   Phase II      Janssen/
                                                                Neurocrine

GABA Receptor Subtype      Insomnia             Phase II      Neurocrine
  Agonist

IL-4 Fusion Toxin          Glioblastoma         Phase I/II    Neurocrine


Altered Peptide Ligand     Multiple Sclerosis   Phase II      Neurocrine

Altered Peptide Ligand     Diabetes             Phase I       Neurocrine/
                                                                Taisho*

GnRH Antagonist            Endometriosis        Development   Neurocrine

CRF Receptor Antagonist    Anxiety/Depression   Development   Neurocrine
                           Stroke
<PAGE>
Excitatory Amino Acid      Neurodegenerative    Research      Wyeth-Ayerst /
  Transporters                Diseases                          Neurocrine

Melanocortin Receptor      Obesity              Research      Neurocrine
  Antagonist

Chemokine Antagonist       Inflammatory         Research      Neurocrine
                             Disorders

Orexin                     Sleep Disorders      Research      Neurocrine

Urocortin/CRF Agonist      Obesity              Research      Lilly
- ----------
    *Subject to exercise  of Option  Agreement  by Taisho.  See  discussion  of
          Strategic Alliances regarding Taisho on page 13.

    "Research" indicates identification and evaluation of compounds in in vitro
          and animal models.

     "Development" indicates that lead compounds have been discovered that meets
          certain in vitro and in vivo  criteria.  These  compounds  may undergo
          structural   modification  and  more  extensive  evaluation  prior  to
          selection for preclinical development.

     "Phase I" indicates that  Neurocrine  and/or its  collaborative  partner is
          conducting   clinical  trials  to  determine  safety,   the  maximally
          tolerated  dose  and   pharmacokinetics   of  the  compound  in  human
          volunteers.

     "Phase II" indicates that Neurocrine  and/or its  collaborative  partner is
          conducting  clinical trials in humans to determine safety and efficacy
          in an expanded patient population.


NEUROCRINE'S RESEARCH AND DEVELOPMENT PROGRAMS

     CORTICOTROPIN RELEASING FACTOR ("CRF"). Corticotropin releasing factor, the
central  regulator of the body's overall  response to stress,  affects  multiple
systems by functioning both as an endocrine factor and a  neurotransmitter.  CRF
acts as a hormone at the  pituitary  gland  causing the secretion of the steroid
cortisol  from the adrenal  glands  resulting in a number of metabolic  effects,
including   suppression  of  the  immune   system.   CRF  also  functions  as  a
neurotransmitter  in the  brain  and  plays  a  critical  role  in  coordinating
psychological  and behavioral  responses to stress such as increased heart rate,
anxiety,  arousal  and reduced  appetite.  In  addition  to  neuroendocrine  and
neurotransmitter  roles,  accumulating  evidence  suggests  that  CRF  may  also
integrate  actions between the immune and central nervous systems in response to
physiological and psychological stressors.

     The body has  several  mechanisms  to  regulate  the  effects  of CRF.  The
Company's  cloning of human CRF receptors and binding proteins suggests that the
diverse  functions of CRF are mediated through distinct  receptor subtypes which
are differentially distributed in specific brain areas and in tissues outside of
the central  nervous  system.  These  targets may offer a mechanism  to modulate
specific  actions of CRF without  affecting  the broad range of its  activities.
There are  several  diseases  and  disorders  such as  anxiety,  depression  and
substance abuse in which CRF levels are increased.  The  deleterious  effects of
high levels of CRF may be  countered  by the  administration  of  selective  CRF
receptor antagonists.

     Anxiety.  Anxiety  is  among  the  most  commonly  observed  group  of  CNS
disorders,   which  includes  phobias  or  irrational   fears,   panic  attacks,
obsessive-compulsive  disorders and other fear and tension syndromes.  Estimates
by the  National  Institute  of Mental  Health  suggest  that the most  commonly
diagnosed  forms of  anxiety  disorders  may  affect  10% of the  United  States
population.  Of the  pharmaceutical  agents that are currently  marketed for the
treatment   of  anxiety   disorders,   a  class  of   compounds   known  as  the
benzodiazepines,  which includes Valium, is the most frequently  prescribed.  In
spite of their therapeutic  efficacy,  several side effects limit the utility of
these  anti-anxiety  drugs. Most problematic among these are drowsiness,  ataxia
(the inability to stand up), amnesia,  drug dependency and withdrawal  reactions
following the cessation of therapy.

     Neurocrine  is  developing  a  new  class  of  therapeutics   that  targets
stress-induced   anxiety.   In  view  of  the   evidence   implicating   CRF  in
anxiety-related disorders,  Neurocrine is developing small molecule CRF receptor
antagonists as anti-anxiety  agents that block the effects of  overproduction of
CRF. The Company  believes that these  compounds  represent a class of molecules
based on a novel  mechanism of action that may offer the advantage of being more
selective,  thereby providing  increased efficacy with reduced side effects.  In
animal studies used to evaluate  anti-anxiety drugs,  Neurocrine scientists have
demonstrated  the efficacy of its clinical  compound  candidates  following oral
administration  without evidence of apparent side effects.  Neurocrine currently
has two CRF development  programs.  In the more advanced  program,  Neurocrine's
corporate partner,  Janssen, selected a CRF-1 receptor antagonist drug candidate
for preclinical testing in 1996, commenced and completed Phase I clinical trials
on the compound in late 1998 and  initiated a Phase II open label study in 1999.

<PAGE>

Preliminary  safety and efficacy results on 20 patients in this study were shown
to have an improvement in widely accepted measures of anxiety and depression. In
addition to the CRF program partnered with Janssen,  Neurocrine is conducting an
independent  CRF  program  focused on a series of  chemical  compounds  that are
proprietary to Neurocrine.  Neurocrine plans to select a lead clinical candidate
from  this  program  in 2000.  There  can be no  assurance  that CRF  antagonist
compounds will be effective and safe  therapeutics for the treatment of anxiety,
depression or any other conditions.  Results in animal models of anxiety are not
necessary  predictive of efficacy in human  clinical  trials and there can be no
assurance that in larger placebo-controlled clinical trials these compounds will
demonstrate clinical efficacy in humans. In addition,  no assurance can be given
that Janssen will successfully complete Phase II clinical testing or progress to
later clinical trials in a timely manner.

     Depression. Depression is one of a group of neuropsychiatric disorders that
includes extreme feelings of elation and despair, loss of body weight, decreased
aggressiveness  and  sexual  behavior,  and loss of  sleep.  This  condition  is
believed  to result  from a  combination  of  environmental  factors,  including
stress,  as  well  as  an  individual's  biochemical  vulnerability,   which  is
genetically  predetermined.  The  biochemical  basis of depression is thought to
involve   elevated   secretion  of  CRF  and  abnormally  low  levels  of  other
neurotransmitters in the brain such as serotonin. Clinical reports indicate that
at least 25 million people worldwide  experience major depressive  disorders and
another 45 million people experience other depressive  disorders.  In the United
States 6% of the population is affected by major  depression.  The most frequent
prescribed  antidepressant therapies are selective serotonin reuptake inhibitors
(SSRIs)  such as Prozac,  Zoloft,  Paxil and Celexa  which act to  increase  the
levels of serotonin  and several  other  chemicals in the brain.  Because  these
drugs affect a wide range of neurotransmitters, they have been associated with a
number of side  effects.  While newer,  more  selective  drugs offer some safety
improvement,  side  effects  remain  problematic.  Another  limitation  to  most
existing antidepressant therapies is slow onset of action.

     Neurocrine and its corporate partner, Janssen are developing small molecule
therapeutics to block the effects of  overproduction of CRF for the treatment of
depression.  The Company has developed  several distinct  chemical series of CRF
receptor antagonists.  Janssen selected a drug candidate in 1996 for preclinical
testing,  commenced  Phase I clinical  trials on the  compound  in late 1997 and
completed  these in 1998. In late 1998 a Phase II open label trial was initiated
in patients with major  depression.  No assurance can be given that Janssen will
successfully  complete  Phase II clinical  testing of this candidate or that the
Phase II data will support  continuation of the program and additional  clinical
trials.

     Stroke.  Stroke is an acute  neurologic event caused by blockage or rupture
of  vessels,  which  supply  blood to the brain  leading  to nerve  cell  death.
Neuronal damage progresses over a period of four to six hours.  According to the
National Institutes of Health ("NIH") estimates,  approximately 500,000 patients
experience a stroke in the United States each year, with an approximately  equal
incidence  in the rest of the  world.  Stroke  results in an  estimated  150,000
fatalities each year,  making it the leading cause of death behind heart disease
and cancer, and an estimated  additional 150,000 stroke victims suffer permanent
neurological damage.  Survivors of stroke are at significantly increased risk of
suffering  another  episode.  Current  treatments for stroke consist of surgery,
steroid therapy and  anti-platelet  therapy.  These treatments may help increase
blood flow but do not affect the  secondary  mechanisms  which  cause nerve cell
death.

     Neurocrine believes its CRF receptor antagonist program may have utility in
the treatment of stroke. Preliminary experiments in animal models of stroke show
enhancement  of  neuronal  survival  following  treatment  with  a CRF  receptor
antagonist.  Results  obtained  in animals  are not  necessarily  predictive  of
results obtained in humans,  and no assurance can be given that the Company will
successfully complete pre-clinical development of CRF antagonist drug candidates
appropriate  for stroke and enter into or complete  clinical  trials in a timely
manner, if at all.

     GABA SUBTYPE RECEPTOR AGONISTS. The term "insomnia" is used to describe all
conditions  related to the perception of inadequate or non-restful  sleep by the
patient.  According to a Gallup Survey conducted on behalf of the National Sleep
Foundation,  49% of all  Americans  say that they have trouble  sleeping.  Often
undiagnosed or dismissed,  insomniacs  have trouble  falling  asleep,  remaining
asleep or staying  awake.  Insomnia  was also shown to be related to the age and
sex of the individuals,  the prevalence of which is higher in older  individuals
and  females.  While  insomnia is  reported  to be a major  problem in the adult
population worldwide,  only approximately 10% of such patients seek prescription
sleeping  medications  for  their  condition.  This  fact  may  result  from the
perceived side effect profile of currently marketed sedative-hypnotics.

<PAGE>

     In the recent  past,  the majority of patients  treated for  insomnia  have
utilized  non-benzodiazepine  compounds,  which  show an  improved  side  effect
profile over the benzodiazepine class of sedative-hypnotics  utilized during the
1980's.  However,  currently  marketed  products  continue  to  exhibit  certain
unfavorable  side  effects,   including   synergy  with  other  CNS  depressants
(especially alcohol),  the development of tolerance upon repeat dosing,  rebound
insomnia following discontinuation of dosing, hangover effects the next day, and
impairment of psychomotor  performance and memory. Memory impairment,  which can
include amnesia for events occurring prior to and after drug administration,  is
of  particular  concern in the elderly whose  cognitive  function may already be
impaired by the aging process.  The elderly population,  which represent a large
portion  of  the  insomnia  market,   would  especially  benefit  from  a  novel
therapeutic with an improved safety profile,  rapidity of onset, and decrease in
memory impairment.

     In 1998 the Company signed an exclusive  worldwide licensing agreement with
DOV  Pharmaceuticals,  Inc.  for a  compound  in  clinical  development  for the
treatment of insomnia. The compound,  NBI-34060, works through the activation of
the benzodiazepine site on a GABA receptor subtype. It is through this mechanism
that the currently marketed therapeutics produces their sleep-promoting effects.
However,  NBI-34060, a next generation compound, is chemically distinct from the
benzodiazepines with a potentially improved pharmacokinetic profile and receptor
subtype  selectivity,  which may reduce the side effects  characteristic  of the
currently marketed products.

     Receptor  binding  studies  and  preclinical  animal  studies on  NBI-34060
indicate that it is a highly potent GABAA receptor agonist specific for the Type
1 site.  In animal  studies,  NBI-34060  shows a reduced  tolerance to sedation,
suggesting a lower potential for abuse, and a reduced tendency to potentiate the
deleterious effects of alcohol. In addition,  in animal models NBI-34060 appears
to be devoid of next day hangover effects and is expected to have a considerably
reduced amnestic potential.

     Prior  to  licensure  of  NBI-34060  by the  Company,  Dov  Pharmaceuticals
conducted  an  NBI-34060  Phase I  clinical  study.  The study was  designed  to
determine  the safety and  tolerance  of  NBI-34060,  and provide a  preliminary
evaluation  of  the  sedative-hypnotic  potential  in 42  normal  volunteers  as
reflected in self-ratings of drowsiness, disruption of memory, and impairment of
psychomotor  performance.  NBI-34060  was well  tolerated,  with no  serious  or
unexpected adverse events ("AEs") reported.  The only consistently reported side
effect was drowsiness,  indicating  strong  potential for the  sedative-hypnotic
properties of the compound. In the first quarter of 1999, Neurocrine completed a
Phase Ib clinical trial in 30 healthy  volunteers to further  explore the safety
and kinetic  profile of NBI-34060.  As  demonstrated in the first Phase I trail,
NBI-34060  demonstrated  an  acceptable  safety  profile.  The Company  recently
completed a Phase II  placebo-controlled  multi-center clinical study evaluating
the efficacy of NBI-34060 in 228 subjects with transient insomnia. The data from
this study  indicate that  NBI-34060 is safe and  effective in helping  subjects
with  transient  insomnia  achieve  rapid sleep  without  the next day  residual
effects  associated with most currently  marketed sleep  hypnotics.  Statistical
significance was reached for the primary clinical endpoint Latency to Persistent
Sleep (LPS) with patients receiving NBI-34060 achieving sleep in a median LPS of
9  minutes  compared  to a  median  LPS  in the  placebo  group  of 23  minutes.
Additional Phase II studies, including dose evaluation in chronic insomnia, will
be  conducted  in 2000.  There can be no  assurance  that the side  effects  and
efficacy  profile of NBI-34060  seen in the Company's  animal models and Phase I
and II trials  will be  confirmed  in  additional  trials or that the results of
future trials will warrant further study.

     ALTERED  PEPTIDE  LIGANDS.  In  North  America,  5% of  adults,  more  than
two-thirds of them women,  suffer from autoimmune  diseases  (including multiple
sclerosis,  rheumatoid arthritis, Type I diabetes, systemic lupus erythematosus,
and thyroiditis).  The body's immune system employs highly specific T cells that
recognize  and attack  foreign  antigens  that  invade  the body.  Occasionally,
certain T cells arise that  inappropriately  recognize the body's own tissues as
foreign. While virtually every individual possesses these self-reactive T cells,
in only a fraction of these people do the immune cells  actually  attack healthy
tissue and cause an autoimmune disease. In a healthy individual, the activity of
these  self-reactive  T cells is held in check  by other T cells  that  regulate
their function  (regulatory T cells).  If a defect in regulatory T cell function
occurs,  or the  environment  favors the activity of  self-reactive  T cells, an

<PAGE>

autoimmune  disease  results.  While it is not clear  what  triggers  the immune
attack,  a  current   hypothesis   suggests  that  people  who  are  genetically
predisposed  to  autoimmune  diseases  come in contact with  certain  infectious
viruses or bacteria.  In the process of controlling  the  infection,  the immune
system targets an antigen on the infectious agent that resembles a self-antigen.
These cells then begin to attack  self-tissue,  resulting in autoimmune disease.
Thus, a failure in regulation of the immune system at the level of dysfunctional
regulatory T cells  predisposes  an individual to  autoimmune  disease.  Current
reasoning  suggests that the  development of immune specific drugs that suppress
the action of  self-reactive T cells and/or restore the function of regulatory T
cells  might prove  advantageous  for the  prevention/cure  or  treatment  of an
autoimmune disease.

     The T cells involved in the autoimmune disease achieve specificity in their
various  functions  via their cell  surface  molecules  known as T cell  antigen
receptors ("TCR").  Each T cell expresses its own specific TCR on its surface. T
cells  recognize  antigens,  whether foreign or self-derived in the context of a
MHC molecule.  This then represents the ligand that hooks up and binds to such a
TCR. In this manner,  a peptide  fragment can send a signal to the T cell via an
antigen-specific  TCR that binds  specifically to this antigen.  After receiving
this  signal  through  its TCR,  the T cell will  divide,  proliferate,  secrete
cytokines and/or destroy healthy cells.

     If the structure of such a peptide fragment is altered,  such that it binds
to its specific TCR with much less affinity, this altered peptide ligand ("APL")
sends an incomplete  signal to the T cell. This incomplete or altered signal can
trick a T cell and prevent it from dividing, proliferating,  secreting cytokines
and/or  destroying  normal  cells.  Indeed,  if such an APL can be  designed  to
prevent  "killer" T cells from  destroying  healthy cells,  it would represent a
very  useful  antigen-specific  therapy  to prevent  the onset of an  autoimmune
disease.

     Multiple Sclerosis ("MS").  Multiple sclerosis is a chronic immune mediated
disease  characterized  by recurrent  attacks of neurologic  dysfunction  due to
damage in the central nervous system ("CNS").  The classic clinical  features of
MS include  impaired  vision and  weakness  or  paralysis  of one or more limbs.
Patients develop a slow,  steady  deterioration  of neurologic  function over an
average  duration  of  approximately  30 years.  The cause of MS is unknown  but
immunologic  or  infectious  factors  have  been  implicated.  According  to the
National  Multiple  Sclerosis  Society,  there are an estimated 350,000 cases of
multiple  sclerosis  in the United  States and an equal  number of  patients  in
Europe  with  approximately  20,000  new cases  diagnosed  worldwide  each year.
Currently available treatments for MS offer only limited efficacy. Steroids have
been  used to  reduce  the  severity  of acute  flare-ups  and  speed  recovery.
Experimental  therapy  with other  immunosuppressive  agents  has shown  limited
success. Betaseron (a form of beta-interferon) has been shown to delay the onset
of flare-ups of the symptoms in patients and has been  approved for marketing by
the United States Food and Drug Administration  ("FDA"). In addition,  Avonex, a
similar form of beta-interferon,  and Copaxone, a peptide polymer, have received
FDA  approval  for  relapsing   remitting   MS.  In  clinical   trial  with  the
beta-interferon  products,  these therapies slowed  progression of disease in MS
patients, yet lead to a variety of side effects including "flu-like" symptoms.

     Neurocrine's  cofounder,  Dr.  Lawrence  Steinman,  identified the dominant
invading  T cell in the  brains of  patients  who had died of MS.  Dr.  Steinman
further  identified the dominant target or recognition site on the myelin sheath
to which  invading  T cells  bind.  Neurocrine  has  exclusively  licensed  this
technology and has designed  altered  peptide  ligands,  which  resemble  native
disease-causing  molecules  of the  myelin  sheath.  These  molecules  have been
altered  to  attract  and bind to  disease-causing  T cells  and  inhibit  their
destructive capabilities.  Neurocrine's altered peptide ligand for the treatment
of MS,  NBI-5788,  has been shown to reverse  disease in animal models of MS and
decrease the production of cytokines such as gamma interferon and tumor necrosis
factor-alpha which contribute to the disease.  These same molecules  demonstrate
the ability to silence  pathogenic  T cells from MS patients in vitro.  Together
with Novartis  Pharmaceuticals  Corporation  ("Novartis"),  the Company's former
collaborative  partner for this  program,  Neurocrine  filed an IND and received
approval  in  1996  to  commence  clinical  trials.  The  Company  and  Novartis
subsequently completed Phase I clinical trials, and two Phase II clinical trials
were initiated in 1999 in North America and Europe. In July 1999 while the Phase
II  trials  were  underway,  Novartis  exercised  its  right  to  terminate  the
collaboration  with the Company effective January 2000.  Subsequently,  the Data
and Safety  Monitoring Board for the study  recommended that  administration  of
study drug be  discontinued  based on certain  reports of patients  experiencing
systemic hypersensitivity-type  reactions.  Neurocrine and Novartis continued to
evaluate  all of the enrolled  patients in the study  through  December  1999 in
accordance  with the Protocol.  Neurocrine  reacquired all rights to the program
from  Novartis on January 7, 2000 and  initiated  data  analysis.  No assurance,
therefore,  can be given that  Neurocrine  will initiate or complete  additional
Phase II or Phase III studies or that  results of any such  studies will warrant
additional clinical development of potential product.

<PAGE>

     Type I Diabetes.  Utilizing its  experience in the  development  of APL for
Multiple  Sclerosis,  Neurocrine  has  extended  this  approach  to  Type  I  or
juvenile-onset  diabetes.  Like MS, in Type I  diabetes  the  immune  system has
erroneously   targeted  healthy  tissue,  in  this  case  the  pancreatic  cells
responsible  for the  production of insulin.  Type I diabetes is one of the most
prevalent  chronic  conditions in North America,  afflicting  approximately  one
million patients in 1999. Diabetics suffer from a number of complications of the
disease  including  heart  disease,   circulatory   problems,   kidney  failure,
neurologic disorders and blindness. Current therapy for Type I diabetes consists
of daily insulin injections to regulate blood glucose levels.

     The Company believes that an altered peptide ligand specific for autoimmune
T cells involved in diabetes may stop the  destruction of the insulin  secreting
cells in  pre-diabetic  patients,  thus  allowing them to delay or avoid chronic
insulin  therapy.  Working  with a leading  Diabetologist  at the Barbara  Davis
Center  for  Childhood  Diabetes  at  the  University  of  Colorado,  Neurocrine
scientists have engineered one of the dominant  pancreatic  antigens which is no
longer recognized by the pathogenic immune cell. In preclinical models this APL,
NBI-6024,  was capable of eliciting a protective  immune  response by generating
cells that secrete factors capable of regulating the destructive  cells reducing
the incidence of diabetes.  In addition,  experiments using immune cells derived
from the blood of Type 1 diabetes  patients indicate that NBI-6024 is recognized
by immune cells response to insulin,  suggesting  that it may have the potential
to  intervene  in  the  disease  process  in  humans.  Neurocrine  is  currently
conducting an NBI-6024 Phase I safety and dose  escalating  clinical  program in
diabetic  patients.  In January 2000,  Neurocrine  announced that it had entered
into an agreement with Taisho  Pharmaceuticals Co., Ltd. ("Taisho") providing to
Taisho an  exclusive  option to obtain  European  and Asian  rights to NBI-6024,
Neurocrine's  APL Diabetes  product.  There can be no assurance that Taisho will
elect to exercise its option with respect to the  technology or that the results
of the  Company's  preclinical  studies in animals and cells derived from Type I
diabetes  patients  will be  predictive  of the  results  the  Company  will see
treating Type I diabetes patients.

     IL-4 FUSION TOXIN.  IL-4 receptors are highly  expressed in malignant brain
tumors as well as in cancers of the breast, kidney, lung, colon, stomach, ovary,
prostate,  and in melanoma and  mesothelioma.  Immunotoxins  are a novel form of
anticancer  therapy  under  investigation  in a variety  of  clinical  settings.
Immunotoxin  therapeutics  are  designed  to  carry a  cellular  toxin,  such as
Pseudomonas exotoxin,  to a target antigen,  expressed on cancer cells. Targeted
immunotoxins have several theoretical advantages over conventional  chemotherapy
in  that  they  may  be  extremely   selective   and  potent  and  effective  in
chemotherapy-resistant T cells.

     Malignant brain tumors,  both primary and metastatic,  are a major cause of
cancer death.  Despite current therapeutic  options such as surgery,  radiation,
and chemotherapy, the median survival rate for malignant brain cancer is only in
the range of 9-12 months. Approximately 17,400 new cases of primary brain cancer
and 75,000 cases of  metastatic  brain tumor are  diagnosed in the United States
each  year,  with  comparable  incidence  numbers in  Europe.  According  to the
American  Cancer  Society,  the  incidence of malignant  brain tumors is rising.
Glioblastoma  (grade 4 astrocytoma)  is the most common primary  malignant brain
tumor.  These tumors arise within the brain and generally remain confined to the
brain.  The clinical course of glioblastoma is  characterized by relentless loss
of vital neurological functions and death within approximately twelve months.

     In 1998, the Company  exclusively  licensed from the National Institutes of
Health an immunotoxin compound, NBI-3001 or IL-4 Fusion Toxin. IL-4 Fusion Toxin
was  designed  as a result of  collaboration  between  the FDA and the  National
Cancer Institute. IL-4 Fusion Toxin is a chimeric protein in which interleukin 4
(IL-4), a cell growth factor has been joined together with Pseudomonas exotoxin,
a toxin that can kill cells. The IL-4 portion of the Fusion Toxin preferentially
binds to human cancer cells because the cancer cells express  elevated levels of
high  affinity  receptors  for  IL-4  on  their  surface,  while  IL-4  receptor
expression  is absent or  undetectable  in normal  brain  tissue.  Once the IL-4
portion of the IL-4  Fusion  Toxin  targets the toxin to the cancer  cells,  the
Pseudomonas  exotoxin  portion of the molecule  preferentially  kills the cancer
cells.

     In the preclinical setting,  NBI-3001 has been found to be highly cytotoxic
to brain tumor cell lines in vitro, and exhibits  anti-tumor activity in in vivo
models of brain tumor.  A Phase I safety trial with NBI-3001 has been  completed
under an Investigator sponsored IND in which 9 patients with recurrent malignant
glioblastoma   were  treated.   Results  were   presented  at  The  Society  for
Neuro-Oncology   Meeting  in  an  abstract   entitled  "A  Circularly   Permuted
Interleukin-4  Pseudomonas Exotoxin for Treatment of Malignant Gliomas." In this
study,  NBI-3001  produced no evident  systemic or  neurological  toxicities  as
documented by serum  chemistry,  hematology  screen  including  liver panels and
neurological examinations. While a physician-IND clinical trial does not replace
the need for Company-sponsored clinical trials, the Company felt that this study

<PAGE>

provided a preliminary  indication that further  clinical trials were warranted.
In 1999 the Company  initiated  a Phase I/II trial of NBI-3001 in patients  with
recurrent  glioblastoma  in which the  primary  endpoints  are  safety and tumor
regression.  The Company  intends to complete  enrollment of this trial in early
2000, and if results  warrant,  commence a Phase III efficacy trial for NBI-3001
in 2000. In October 1999, the FDA granted Fast Track  Designation to the Company
for  NBI-3001.  Fast Track  Designation  allows the  Company to  accelerate  its
clinical program for NBI-3001 and expedite receipt of regulatory  approvals.  No
assurance  can be given that the Company  will  successfully  complete  clinical
testing or progress to later clinical trials in a timely manner, or at all.

     In conjunction with the Company's  clinical  studies in  glioblastoma,  the
Company and others are  investigating the safety and efficacy of IL-Fusion Toxin
in  in  vitro   models  of  different   cancers  and  by  different   routes  of
administration.  Research teams from the FDA and NIH have published results with
IL-4  Fusion  Toxin  demonstrating  a high level of binding and  destruction  of
malignant  tumor cells obtained from patients with colon cancer,  breast cancer,
gastric cancer, prostate cancer, kidney cancer, lymphoma, melanoma and malignant
brain tumors. The Company is also conducting pre-clinical research in this area.
There  can be no  assurance  that the  results  of the in vitro  models  will be
indicative of results in animal  models,  that IL-4 Fusion Toxin will prove safe
or  efficacious  in any of these  settings  or that the  Company  will  initiate
clinical trials in cancers other than glioblastoma.

     GONADOTROPIN-RELEASING  HORMONE  (GNRH)  RECEPTOR.   Gonadotropin-releasing
hormone is a  hypothalamic  decapeptide  that  stimulates  the  secretion of the
pituitary  gonadotropins,  luteinizing  hormone  (LH)  and  follicle-stimulating
hormone (FSH).  The  gonadotropins,  in turn, are necessary for gonadal  steroid
production and normal  reproductive  function.  Chronic  administration  of GnRH
superagonist  peptides  has  been  found to cause  down  regulation  of the GnRH
receptor  resulting  in  a  paradoxical   reduction  in  circulating  levels  of
testosterone  or estrogen,  equivalent to surgical  castration or  oophorectomy,
respectively.  This reversible  shutdown of the reproductive  endocrine axis has
proven clinically useful in treating hormone  dependent  proliferative  diseases
such as endometriosis,  prostate  carcinoma,  and breast cancer, and resulted in
several peptide drugs such as Lupron(R) and Zoladex(R), with an estimated market
in excess of $1  billion.  However,  current  peptide  agonist  based drugs have
several drawbacks.  They require 3-4 weeks before the regulatory  activities are
observed,  and during  this  period  their  stimulatory  effects can result in a
worsening  of  the  disease.  Being  peptides  they  also  require  subcutaneous
injection or nasal administration and are expensive to manufacture.

     The Company  has  screened  its small  molecule  library and has  conducted
structure  activity studies aimed at producing a small molecule GnRH antagonist.
Several  series of small molecule  compounds have been  identified and are being
evaluated as candidates for further development.  There can be no assurance that
the  Company's  work in this area will lead to clinical  candidates  or that any
such clinical candidates will be found to be safe and efficacious.

     EXCITATORY AMINO ACID TRANSPORTERS ("EAATs").  EAATs serve as novel targets
for the  development  of drugs,  which modulate toxic levels of glutamate in the
brain.  Neurotransmitter  transporters  play an important role in regulating the
levels of neurotransmitters,  and some of the most successful CNS drugs are ones
that selectively target these transporters. For example, the Selective Serotonin
Reuptake  Inhibitors  ("SSRIs") such as Prozac selectively inhibit the serotonin
transporter modulating the serotonin levels for therapeutic benefit.  Similarly,
Neurocrine  is  targeting  the EAATs to  selectively  modulate the levels of the
excitatory  neurotransmitter  glutamate  to  produce a  therapeutic  benefit  in
disorders  where glutamate  levels are abnormal such as in stroke,  head trauma,
retinal  ischemia,  schizophrenia  and other  neurodegenerative  and psychiatric
disorders. Neurocrine has entered into collaboration with American Home Products
Corporation    acting   through   its   Wyeth-Ayerst    Laboratories    Division
("Wyeth-Ayerst")  focusing on  modulating  glutamate  transporter  function as a
novel strategy for the treatment of neurodegenerative disorders.  Neurocrine and
Wyeth-Ayerst  will target the EAATs to  selectively  modulate  the levels of the
excitatory  neurotransmitter  glutamate  to  produce a  therapeutic  benefit  in
disorders where  glutamate  levels are abnormal.  These  activities will include
basic research to understand  the function and  regulation of the  transporters,
the  identification of suitable chemical hits, along with the identification and
characterization  of chemical and  biological  leads.  There can be no assurance
that the Company and Wyeth-Ayerst  will be successful in demonstrating  EAATs as
therapeutic  targets  or that they will  identify  any  product  candidates  for
pre-clinical or subsequent clinical development.

<PAGE>

     MELANOCORTIN RECEPTOR ANTAGONISTS.  Melanocortin  receptors are involved in
the control of endocrine,  autonomic and central  nervous  system  function.  To
date,  a family of five  melanocortin  receptor  subtypes  has been  identified;
several of which have been cloned by the Company's  consultants  and scientists.
One of the melanocortin receptor subtypes,  MC4, has recently been identified as
an  important  regulating  mechanism  for  appetite,  body  weight  and  insulin
secretion  which  represents  a novel  target for the  treatment  of obesity and
diabetes.  This  technology  combined  with  Neurocrine's  expertise in obesity,
anorexia nervosa and diabetes provides  additional  avenues for the discovery of
effective  therapies  for the treatment of other  endocrine  functions and brain
disorders.  There can be no assurance  that the Company's  research in this area
will lead to product candidates.

     CHEMOKINES. Chemokines are immune/inflammatory mediators considered central
to the trafficking of leukocytes. Restricted and sub-type specific expression of
their receptors in different  pathologies and on T lymphocytes,  dendritic cells
and CNS tissue, suggests a role for these mediators in diseases characterized by
CNS inflammation and leukocyte invasion.  All ligand-receptor  interactions lead
to migration of the cell types  expressing  the  receptor,  hinting at a central
role for these molecules in the  recruitment/invasion  of the diseased tissue by
these cells and their potential role in the ensuing  destruction.  Antagonism of
this effect may, therefore, be of benefit. In addition to an in-depth program of
discovery research,  the Company has decided to screen our library against these
receptor  systems  in  order  to  identify  small  molecule  antagonists.  Since
chemokines  are large  proteins and have multiple  interaction  sites with their
receptors, the design of specific, high-affinity competitive antagonists will be
required.  Antagonists are being tested in inflammatory  animal models including
experimental  autoimmune   encephalomyelitis  (EAE,  for  MS),  arthritis,   and
diabetes.

     Given the complexity of the chemokine  area,  Neurocrine has focused on the
more  recently  discovered  receptors in an attempt to generate  small  molecule
antagonists.  To that end,  numerous  chemokine  receptors have been  expressed,
screened against the Company's small molecule  library,  and structure  activity
studies  undertaken.  There can be no assurance  that the Company's  research in
this area will lead to product candidates.

     OREXIN.  The orexins  consist of two small peptides (28 and 33 amino acids)
that are  expressed in the brain and have been linked to a variety of activities
including, the control of feeding,  cardiovascular regulation,  water intake and
sleep. There are two closely related receptors (1 and 2) for the orexin peptides
that are  expressed  in  different  areas of the brain and most  likely  mediate
different  functions  of the orexin  peptides.  Both  orexin  receptor  agonists
(narcolepsy)  and  antagonists  (insomnia)  may have  potential  value  for drug
development.  Narcolepsy is  characterized by excessive  daytime  sleepiness and
abnormal REM sleep and affects  0.02% to 0.06% of the  population  in the United
States and Western  Europe.  As  discussed  above,  insomnia  affects 49% of all
Americans.  The  Company  has  screened a small  molecule  library  to  identify
agonists  and  antagonists  for the orexin  receptors  and is in the  process of
optimizing  the  compounds  that  resulted  from the  screens  and  using  these
compounds to further  characterize the orexin system.  There can be no assurance
that the Company's research in this area will lead to product candidates.

     CRF BINDING PROTEIN/ UROCORTIN AGONIST.  The body has several mechanisms to
regulate the effects of CRF.  CRF-binding  protein  ("CRF-BP")  binds to CRF and
holds it in an inactive state, tightly regulating levels of CRF in certain brain
regions.  Neurocrine  scientists have found that there are significant decreases
in CRF levels in the brain areas that are affected in  Alzheimer's  disease.  In
spite of reduced CRF  concentrations,  CRF-BP  levels are not decreased in these
areas  suggesting  that  CRF-BP  may be a novel  target  for drug  intervention.
Consequently,  in  1996  Neurocrine  and  its  partner  Eli  Lilly  and  Company
("Lilly"),  initiated a 3 year  research  collaboration  to screen and  optimize
CRF-BP antagonists to displace CRF from the binding protein to selectively raise
the  concentration  of CRF in  brain  areas  involved  in  learning  and  memory
processes.  In October  1999,  the funded  research  portion of the  program was
completed  as  scheduled  and Lilly has  retained  control  of the  program.  No
assurance can be given that Lilly will successfully  identify suitable candidate
compounds for development in a timely manner, or at all.

     Similarly,  agonists of the CRF-2  receptor  may  represent  a  therapeutic
strategy to elevate CRF and a related neuropeptide  urocortin.  Preliminary data
indicates that CRF and urocortin may act as central  regulators of both appetite
and metabolism.  Neurocrine has evaluated CRF-BP  antagonists and CRF-2 receptor
agonists in various  animal  models of obesity and have shown effects of reduced
food intake and weight loss.  In 1996  Neurocrine  and its partner Eli Lilly and
Company,  initiated a 3 year research collaboration to screen and optimize small
molecule  compounds  for  evaluation in  confirmatory  preclinical  studies.  In
October  1999,  the funded  research  portion of the  program was  completed  as
scheduled  and Lilly has retained  control of the program.  No assurance  can be
given that Lilly will successfully  identify CRF and urocortin agonists suitable
as anti-obesity therapeutics in a timely manner, or at all.
<PAGE>

BUSINESS STRATEGY

     The Company's  strategy is to utilize its  understanding  of the biology of
the central nervous,  immune and endocrine systems to identify and develop novel
therapeutics. There are five key elements to the Company's business strategy:

     TARGET MULTIPLE  PRODUCT  PLATFORMS.  The Company  believes certain central
nervous system drug targets,  such as CRF,  EAATs and MCH represent  significant
market  opportunities  in  psychiatric,   neurologic  and  metabolic  disorders.
Immunological  targets,  such as  altered  peptide  ligands,  offer  therapeutic
strategies  related to autoimmune  diseases.  Neurogenomics and chemokines allow
the Company to combine its neuroscience  and immunology  expertise with new drug
discovery  technologies to identify novel  gene-related  product or gene therapy
opportunities.

     IDENTIFY NOVEL NEUROSCIENCE AND IMMUNOLOGY DRUG TARGETS FOR THE DEVELOPMENT
OF  THERAPEUTICS  WHICH  ADDRESS  LARGE UNMET MARKET  OPPORTUNITIES.  Neurocrine
employs  molecular  biology as an enabling  discipline  to  identify  novel drug
targets such as receptors,  genes and  gene-related  products.  The Company uses
advanced  technologies,   including  combinatorial  chemistry,   high-throughput
screening,  gene  sequencing and  bioinformatics,  to discover and develop novel
small molecule  therapeutics  for diseases and disorders of the central  nervous
and immune systems including anxiety, depression,  Alzheimer's disease, multiple
sclerosis, neurodegeneration, diabetes, obesity and insomnia.

     LEVERAGE STRATEGIC ALLIANCES TO ENHANCE  DEVELOPMENT AND  COMMERCIALIZATION
CAPABILITIES.  Neurocrine  intends to leverage the  development,  regulatory and
commercialization   expertise  of  its  corporate  partners  to  accelerate  the
development  of  its  potential   products,   while   retaining   commercial  or
co-promotion  rights in North America.  The Company intends to further  leverage
its  resources  by  continuing  to enter  into  strategic  alliances  and  novel
financing mechanisms to enhance its internal  development and  commercialization
capabilities.

     To date,  Neurocrine  has entered  into  strategic  alliances  with Janssen
focusing on CRF receptor antagonists to treat anxiety, depression, and substance
abuse; with Novartis to develop altered peptide ligands for the treatment of MS;
and   with   Lilly   to   collaborate   in  the   discovery,   development   and
commercialization  of CRF-BP  antagonists  and CRF agonists for the treatment of
central  nervous  system  disorders  including  obesity  and  dementias  such as
Alzheimer's disease. In 1999 the Company entered into a collaboration  agreement
with  Wyeth-Ayerst  to  research,  develop  and  commercialize  compounds  which
modulate EAATs for the treatment of neurodegenerative and psychiatric diseases.

     In addition,  in 1999 Neurocrine  entered into three  technology  alliances
with other companies to enhance its drug discovery and development capabilities.
The first  alliance  is with Array  Biopharma  Inc. to design and  synthesize  a
focused  library  around  small  molecules  targeted  at  the G  protein-coupled
receptor  superfamily.   The  second  alliance  is  with  Arena  Pharmaceuticals
involving the application of Arena's constitutive activation technology to three
Neurocrine  orphan  G-coupled  receptors.  The  third  alliance  is  with  Trega
Biosciences,   Inc.  directed  to  screening  of  Trega's  proprietary  chemical
libraries.

     OUTSOURCE  CAPITAL  INTENSIVE  AND  NON-STRATEGIC  ACTIVITIES.   Neurocrine
intends  to focus its  resources  on  research  and  development  activities  by
outsourcing its requirements for manufacturing, preclinical testing and clinical
monitoring activities.  The Company utilizes contract current Good Manufacturing
Processes  ("cGMP")  manufacturing for clinical programs including the NBI-34060
program for insomnia,  the APL ligand  programs for MS and Diabetes and the IL-4
Fusion Toxin program.  Neurocrine believes that availability of skilled contract
manufacturers  and  contractors  will  allow  the  Company  to focus on its core
discovery and development programs to generate additional product opportunities.

<PAGE>

     ACQUIRE COMPLEMENTARY RESEARCH AND DEVELOPMENT DRUG CANDIDATES.  Neurocrine
plans to continue to selectively acquire rights to products in various stages of
research and clinical  development  in the fields of neurology and immunology to
take advantage of the development and future  commercialization  capabilities it
is developing in cooperation with its strategic  partners.  In 1998, the Company
licensed  from the National  Institutes  of Health an IL-4 Fusion Toxin which is
currently in Phase I/II clinical trials for recurrent glioblastoma. In May 1998,
the Company  acquired  Northwest  NeuroLogic,  Inc. (NNL),  and the intellectual
property  surrounding  the  EAATs 1  through 5 and  Melanocortin  receptors.  In
addition,  the scientific  founders of NNL, Drs. Roger Cone and Susan Amara,  of
the Vollum Institute became exclusive  consultants to the Company.  Also in June
1998, the Company  exclusively  licensed  worldwide  commercial  rights from DOV
Pharmaceuticals,  Inc.  for a  compound for the treatment of insomnia.


TECHNOLOGY

     Neurocrine  utilizes  advanced  technologies  to enhance its drug discovery
capabilities and to accelerate the drug development process.  These technologies
include:

     HIGH-THROUGHPUT  SCREENING  ("HTS").  Neurocrine  has  assembled a chemical
library of diverse,  low molecular  weight  organic  molecules for lead compound
identification.  The Company has  implemented  robotics  screening  capabilities
linked to its library of compounds that facilitate the rapid  identification  of
new drug  candidates  for multiple drug targets.  The Company  believes that the
utilization  of  high-throughput  screening and medicinal and peptide  chemistry
will enable the rapid identification and optimization of lead molecules.

     COMBINATORIAL  CHEMISTRY.  Recent  developments in both  computational  and
combinatorial  chemistry  have shown  that it is now  possible  to design  small
libraries  focused  around hits emerging  from HTS both to evaluate  rapidly the
quality  of such hits and also  subsequently  optimize  the  selected  hits into
advanced lead candidates. The approach involves learning from the set of hits as
a whole and using this  information to design libraries of compounds that may be
structurally  independent  of the  original  hits.  Neurocrine  has acquired the
necessary  technologies  to facilitate the process of library  design,  parallel
synthesis and rapid purification and  characterization of compounds.  Neurocrine
will use the same process to  supplement  the  corporate  compound  library with
structures  relevant for internal projects and hence improve the likelihood that
HTS will discover a meaningful array of useful hits.

     MOLECULAR  MODELING.  Neurocrine  uses an  array  of  medicinal  chemistry,
computational and combinatorial  tools to facilitate the drug discovery process.
At the start of a new project,  when there is relatively  little known about the
selected  molecular  target,  it is  necessary to analyze  screening  data using
relatively crude 2-dimensional  descriptors of molecular  properties.  Thus, the
BCUT  methodology,  introduced by Professor  Perleman  (Kansas),  allows Company
chemists to search  large  virtual  libraries  of novel,  readily  synthesizable
compounds  and  select  for  parallel  synthesis  only  those  which  match  the
collective  properties of the screening  hits.  Later in the project,  once more
robust data becomes  available,  the BCUT filter is combined with  computational
more  intensive  3-dimensional  searches  such as using  CATALYST-derived  (MSI)
pharmacophore  models.  Other  such tools in concert  with  medicinal  chemistry
intuition  and detailed  pharmacokinetic  measurements  can then be used to turn
potent  ligands  into  truly   drug-like   molecules   ready  for   pre-clinical
development.

     MOLECULAR BIOLOGY. Neurocrine scientists have utilized novel techniques for
examination of gene expression in a variety of cellular systems. The company has
developed a  sophisticated  technique to evaluate the type and quantity of genes
in various cellular systems prior to the isolation of genes. Neurocrine has also
developed  unique  expression  vectors  and cell lines that allow for the highly
efficient protein expression of specific genes.

     GENE SEQUENCING. Neurocrine applies integrated automated DNA sequencing and
gene  identification  technology  in  its  Neurogenomics  program.  The  systems
utilized  by   Neurocrine   allow  for  extended   gene  analysis  in  a  rapid,
high-throughput  format with independent linkage into a sequence  identification
database.   Neurocrine  has  optimized  gene  sequencing   instrumentation   for
"differential display," a technique that may facilitate the rapid identification
of novel genes.

<PAGE>

     BIOINFORMATICS.  Neurocrine's  Neurogenomics  program creates a significant
amount of genetic sequence  information.  Applied genomics relies on information
management  systems to collect,  store and  rapidly  analyze  thousands  of gene
sequences.  Neurocrine has developed a bioinformatics  system, which the Company
believes  will  allow  it  to  identify  novel  genes,  which  are  involved  in
neurodegeneration.  Data are collected by automated  instruments  and stored and
analyzed  by  Neurocrine   using  customized   computational   tools.  To  date,
Neurocrine's molecular biologists have identified over 4,500 novel genes.


STRATEGIC ALLIANCES

     The Company's business strategy is to utilize strategic alliances and novel
financing   mechanisms  to  enhance  its   development   and   commercialization
capabilities. To date, Neurocrine has completed the following alliances:

     JANSSEN  PHARMACEUTICA,  N.V. In January  1995,  Neurocrine  entered into a
research and development agreement with Janssen to collaborate in the discovery,
development  and  commercialization  of small molecule CRF receptor  antagonists
focusing  on the  treatment  of anxiety,  depression  and  substance  abuse (the
"Original Janssen Agreement"). The collaboration utilizes Neurocrine's expertise
in cloning and  characterizing  CRF  receptor  subtypes,  CRF  pharmacology  and
medicinal chemistry. Pursuant to the Janssen Agreement, the Company has received
$2.0 million in license  payments.  In addition,  Johnson & Johnson  Development
Corporation  ("JJDC")  purchased $5.0 million of the Company's  Common Stock. In
1996 Janssen  selected a clinical  candidate  from the  compounds  discovered in
connection with the Original Janssen Agreement and commenced  clinical trials in
Europe. The collaborative research portion of the Original Janssen Agreement was
completed  as  scheduled in 1997.  In  September  1999,  the Company and Janssen
elected to expand their research and development  efforts to identify additional
small molecule CRF antagonists  for the treatment of psychiatric  disorders (the
"Expanded  Janssen   Agreement').   In  connection  with  the  Expanded  Janssen
Agreement,  Neurocrine received an initial payment and will receive two years of
research  funding for the Company's  scientists  working in  collaboration  with
Janssen.

     Under both the Original Janssen  Agreement and Expanded Janssen  Agreement,
Neurocrine is entitled to receive up to $10.0 million in milestone  payments for
the  indications of anxiety,  depression,  and substance  abuse,  and up to $9.0
million  in  milestone  payments  for  other  indications,  in  each  case  upon
achievement  of certain  development  and regulatory  goals.  As of December 31,
1999, the Company has received $11.6 million in sponsored research, $3.5 million
in  milestones,  $2.0 million in license  fees and  $500,000 for prior  research
under  the   agreements.   Janssen  is  responsible  for  funding  all  clinical
development and marketing activities,  including reimbursement to Neurocrine for
its  promotional  efforts,  if any. The Company has granted Janssen an exclusive
worldwide  license  to  manufacture  and  market  products  developed  under the
Original  Janssen  Agreement  and  Expanded  Janssen  Agreement.  The Company is
entitled to receive royalties on Janssen product sales throughout the world. The
Company has certain rights to co-promote  such products in North America.  There
can be no  assurance  that  the  Company  and  its  corporate  partner  will  be
successful in developing,  receiving regulatory approvals or commercializing any
potential products discovered under the Janssen agreements.  As a result,  there
can be no assurance that any product  development  milestone or royalty payments
will be made.

     DUPONT PHARMACEUTICALS  COMPANY. In September 1999, the Company and Janssen
entered into a three-way license agreement with Dupont  Pharmaceuticals  Company
("Dupont")  relating  to certain  patents and patent  applications  owned by the
parties  covering  a series  of small  molecule  CRF  antagonist  compounds.  In
connection with this agreement,  Dupont received exclusive rights to a subset of
CRF receptor antagonist compounds independently discovered by Neurocrine. Dupont
will make milestone  payments to Neurocrine in the event Dupont achieves certain
developmental  and regulatory  milestones and pay a royalty to Neurocrine in the
event such compounds are successfully commercialized.  There can be no assurance
that Dupont will elect to develop these compounds,  or that if Dupont so elects,
that it will be successful and the Company will receive any milestone or royalty
payments.

     WYETH-AYERST LABORATORIES. Effective January 1999, the Company entered into
a  Collaboration  and License  Agreement  with  Wyeth-Ayerst  Laboratories  (the
"Wyeth-Ayerst   Agreement")   relating   to  the   research,   development   and
commercialization of compounds which modulate excitatory amino acid transporters
("EAATs")  for the  treatment of  neurodegenerative  and  psychiatric  diseases.
Pursuant to the Wyeth-Ayerst  Agreement,  Wyeth-Ayerst  will provide the Company
with up to $11.5 million in research and development  funding.  The initial term
of the funded  research will be three years,  subject to earlier  termination or
extension upon  achievement of certain  benchmarks upon mutual  agreement of the
parties.  The  Company  is also  entitled  to  receive  up to $69.2  million  in
milestones  upon  achievement of certain  research,  development  and regulatory
events. As of December 31, 1999 the Company had received a total of $3.0 million
in research and development funding and $3.0 million in milestone payments under
the Wyeth-Ayerst Agreement.

<PAGE>

     In  addition,   under  certain  circumstances  the  Company  may  have  the
opportunity to co-promote  products with  Wyeth-Ayerst  in the United States and
Canada.  There can be no  assurance  that the Company and  Wyeth-Ayerst  will be
successful in research and drug  discovery  based on this  technology,  that any
pre-clinical and clinical drug candidates  arising from the  collaboration  will
generate commercial product candidates that have viable clinical, regulatory and
intellectual  property profiles or that any commercial products arising from the
collaboration will enjoy market acceptance. Therefore, there can be no assurance
that any  milestones or royalty  income will be payable to the Company under its
agreement with Wyeth-Ayerst.

     TAISHO  PHARMACEUTICAL CO., LTD. In December 1999,  Neurocrine entered into
an exclusive agreement (the "Taisho Agreement") with Taisho  Pharmaceutical Co.,
Ltd.  providing  to Taisho an  exclusive  option  to obtain  European  and Asian
development and commercialization rights for Neurocrine's altered peptide ligand
product, NBI-6024, for Type I Diabetes. In the event Taisho exercises its option
under the Taisho Agreement, Taisho and Neurocrine will form a steering committee
to oversee the worldwide  development of NBI-6024 Neurocrine will receive option
fees,  license fees,  milestone  payments and  reimbursement of 50% of worldwide
development expenses. In addition,  Neurocrine will receive royalties on product
sales in Europe and Japan.  Neurocrine  has  retained  all rights to NBI-6024 in
North America. There can be no guarantee that Taisho will exercise its option to
receive  rights to  NBI-6024  or that  following  exercise  of the  option  that
Neurocrine  and Taisho will be  successful  in  developing  and  commercializing
NBI-6024. There can be no assurance therefore,  that Neurocrine will receive any
milestone or royalty income under the Taisho Agreement.

     NOVARTIS PHARMACEUTICALS COMPANY. In January 1996, the Company entered into
a binding letter agreement with Ciba-Geigy (which  subsequently became Novartis)
to develop  altered  peptide ligand  therapeutics  for the treatment of Multiple
Sclerosis based upon the Company's drug development  candidates and expertise in
immunology and protein  chemistry.  In July 1999,  Novartis  exercised its right
under the Novartis Agreement to terminate the collaboration effective January 7,
2000.  Pursuant to the  termination  provisions of the  agreement,  Novartis was
required  to  continue  all funding  commitments  relating to the  collaborative
program,  including  costs to complete the ongoing  Phase II study.  In December
1999, the Phase II study was completed and the locked database  delivered to the
Company. On January 7, 2000 the Company reacquired the rights to the program and
initiated  analysis  of the data.  No  assurance,  therefore,  can be given that
Neurocrine will initiate or complete additional Phase II or Phase III studies or
that results of any such studies will warrant additional clinical development of
potential product.

     ELI LILLY AND COMPANY. In October 1996,  Neurocrine entered into a research
and  license  agreement  (the "Lilly  Agreement")  with Eli Lilly and Company to
collaborate in the discovery,  development and  commercialization of CRF binding
protein ligand  inhibitors for the treatment of central nervous system disorders
including  obesity and dementias such as Alzheimer's  disease and CRF-2 agonists
for CNS mediated diseases and disorders.  Under the Lilly Agreement,  Neurocrine
was  entitled to receive 3 years of funded  research  payments.  Neurocrine  has
received $17.7 million in research payments under the Lilly Agreement,  of which
$3.2 million was received in 1999.  In October 1999,  the funded  portion of the
research  program  concluded  as  scheduled.  The Company  has granted  Lilly an
exclusive worldwide license to manufacture and market CRF binding protein ligand
antagonists and CRF-2 agonist products. At its option, Neurocrine is entitled to
receive a portion  of the  profits  resulting  from  sales of  products  for the
treatment of dementia in the United States (subject to the Company's  obligation
to pay a portion of the  development  costs for such  product).  There can be no
assurance  that Lilly's  continued  research  under the Lilly  Agreement will be
successful  in  discovering  any  potential  products  or  that  Lilly  will  be
successful in developing, receiving regulatory approvals, or commercializing any
potential products that may be discovered. As a result there can be no assurance
that any product development milestone, royalty, or profit sharing payments will
be made.

<PAGE>

     NEUROSCIENCE  PHARMA  INC. In March 1996,  Neurocrine  formed  Neuroscience
Pharma, Inc. ("NPI"), a research and development company. Neurocrine licensed to
NPI  certain   technology  and  Canadian   marketing  rights  to  the  Company's
Neurosteroid and  Neurogenomics  programs in exchange for 49% of the outstanding
Common  Stock  of NPI.  A group of  Canadian  institutional  investors  invested
approximately  $9.5 million in NPI in exchange for Preferred Stock of NPI, which
could be exchanged for shares of Neurocrine's Common Stock. During 1997 and 1998
these  investors  exchanged  the  Preferred  Stock for an aggregate of 1,279,758
shares of Company's Common Stock. In connection with their initial investment in
NPI, such investors also received warrants exercisable for 383,875 shares of the
Company's  Common Stock and are eligible to receive  additional  warrants in the
future in the event that NPI receives certain Canadian government incentives for
research activities. In December 1999, the Company sold its interest in NPI.


RISK FACTORS

     ALL  OF  THE  COMPANY'S  PRODUCT  CANDIDATES  ARE  AT  AN  EARLY  STAGE  OF
DEVELOPMENT.  All  of the  Company's  product  candidates  are  in  research  or
development.  Neurocrine  has not requested or received  regulatory  approval to
commercialize  any product from the United  States Food and Drug  Administration
("FDA") or any other  regulatory  body.  Any  products  that may result from the
Company's research and development  programs are not expected to be commercially
available for the foreseeable future, if at all.

     The  development  of new  pharmaceutical  products is highly  uncertain and
subject to a number of significant  risks.  Potential products that appear to be
promising at early stages of  development  may not reach the market for a number
of reasons.  Such reasons include the possibilities  that the potential products
will:

     o    be found ineffective or cause harmful side effects during  preclinical
          testing or clinical trials
     o    fail to receive necessary regulatory approvals
     o    be difficult to manufacture on a large scale
     o    be uneconomical or fail to achieve market acceptance
     o    be precluded from  commercialization  by  proprietary  rights of third
          parties

     The Company's product candidates require  significant  additional  research
and development efforts. Neurocrine cannot guarantee that:

     o    regulatory  authorities will approve the continued  development of the
          Company's development candidates
     o    clinical  development of any of the Company's  development  candidates
          will successfully proceed through clinical trials
     o    later stage clinical  trials of the Company's  development  candidates
          will show that they are effective in treatment humans
     o    required  regulatory  approvals will be obtained on a timely basis, if
          at all
     o    any products for which  approval is obtained  will be approved for the
          indications requested or be commercially successful

     If any of these potential  problems occurs, the Company's business would be
materially affected and the price of the Company's stock could decline.

     THE COMPANY IS DEPENDENT ON STRATEGIC  ALLIANCES.  The Company is dependent
upon its  corporate  partners  to provide  adequate  funding  for certain of its
programs.  Under  these  arrangements,  the  Company's  corporate  partners  are
responsible  for (i) selecting  compounds  for  subsequent  development  as drug
candidates,   (ii)  conducting  preclinical  testing  and  clinical  trials  and
obtaining required regulatory  approvals for such drug candidates,  and/or (iii)
manufacturing and commercializing any resulting drugs. If the Company's partners
fail to select a compound the Company has discovered for subsequent development,
fail  to gain  the  requisite  regulatory  approvals  or  fail  to  successfully
commercialize  such  products  it will  have a  material  adverse  effect on the
Company's business, financial condition and results of operations. The Company's
strategy for development and commercialization of its products is dependent upon
entering into additional  arrangements  with research  collaborators,  corporate
partners and others,  and upon the subsequent  success of these third parties in
performing their obligations. There can be no assurance that the Company will be
able to enter into additional strategic alliances on favorable terms, or at all.
If the Company fails to enter into additional strategic alliances, it would have
a material  adverse effect on the Company's  business,  financial  condition and
results of operations.

<PAGE>

     The  Company  cannot  control the amount and timing of  resources  that its
corporate  partners  devote to the  Company's  partnered  programs or  potential
products.  If any of the Company's  corporate partners breach or terminate their
agreements  with the Company or otherwise  fail to conduct  their  collaborative
activities in a timely manner, the preclinical testing,  clinical development or
commercialization of product candidates will be delayed, and the Company will be
required   to  devote   additional   resources   to  product   development   and
commercialization,  or terminate  certain  development  programs.  The Company's
strategic alliances with Janssen,  Lilly, Taisho and Wyeth-Ayerst are subject to
termination by Janssen, Lilly, Taisho or Wyeth-Ayerst,  respectively.  There can
be no assurance that Janssen,  Lilly,  Taisho or Wyeth-Ayerst  will not elect to
terminate  its  strategic  alliance  with the  Company  prior  to its  scheduled
expiration.  In addition,  if the Company's  corporate  partners effect a merger
with a third party, there can be no assurance that the strategic  alliances will
not be terminated or otherwise materially adversely affected. The termination of
any current or future  strategic  alliances could have a material adverse effect
on the Company's business,  financial  condition and results of operations.  The
Company's corporate partners may develop,  either alone or with others, products
that compete with the  development  and  marketing  of the  Company's  products.
Competing  products,  either developed by the Company's corporate partners or to
which  the  Company's  corporate  partners  have  rights,  may  result  in their
withdrawal  of  support  with  respect  to all  or a  portion  of the  Company's
technology,  which  would  have a  material  adverse  effect  on  the  Company's
business,  financial  condition  and  results  of  operations.  There  can be no
assurance  that  disputes  will not  arise in the  future  with  respect  to the
ownership  of rights to any  products or  technology  developed  with  corporate
partners.  These and other possible  disagreements with the Company's  corporate
partners  could lead to delays in the  collaborative  research,  development  or
commercialization  of  certain  of the  Company's  product  candidates  or could
require or result in litigation or  arbitration,  which would be  time-consuming
and  expensive,  and would  have a  material  adverse  effect  on the  Company's
business, financial condition and results of operations.

     THE COMPANY  HAS NO  MANUFACTURING  CAPABILITIES  AND RELIES ON THIRD PARTY
CONTRACTORS.  The Company has in the past  utilized,  and intends to continue to
utilize, third party manufacturing for the production of material for use in the
Company's  clinical  trials  and  for  the  potential  commercialization  of the
Company's  future  products.  The Company  has no  experience  in  manufacturing
products for commercial purposes and does not have any manufacturing facilities.
Consequently,  the Company is solely dependent on contract manufacturers for all
production of products for  development  and commercial  purposes.  In the event
that the  Company is unable to obtain or retain  third-party  manufacturing,  it
will not be able to  commercialize  its products as planned.  The manufacture of
the Company's products for clinical trials and commercial purposes is subject to
cGMP  regulations  promulgated  by the FDA. No  assurance  can be given that the
Company's  third-party  manufacturers will comply with cGMP regulations or other
regulatory  requirements now or in the future.  The Company's current dependence
upon third parties for the manufacture of its products may adversely  affect the
Company's profit margin,  if any, on the sale of the its future products and its
ability to develop and deliver products on a timely and competitive basis.

     THE COMPANY HAS NO MARKETING OR SALES FORCE; THE COMPANY'S PRODUCTS WILL BE
SUBJECT TO SALES AND PHARMACEUTICAL  PRICING CONTROLS.  The Company has retained
certain  marketing  or  co-promotion  rights in North  America to certain of its
products  under  development,  and plans to  establish  its own  North  American
marketing  and sales  organization.  The Company  currently has no experience in
marketing or selling  pharmaceutical  products and does not have a marketing and
sales staff. In order to achieve  commercial  success for any product  candidate
approved by the FDA, the Company must either develop a marketing and sales force
or enter into  arrangements  with third parties to market and sell its products.
There can be no  assurance  that the  Company  will  successfully  develop  such
experience or that it will be able to enter into marketing and sales  agreements
with others on  acceptable  terms,  if at all. If the Company  develops  its own
marketing  and sales  capabilities,  it will compete with other  companies  that
currently have  experienced and well funded marketing and sales  operations.  To
the extent that the Company  enters into  co-promotion  or other  marketing  and
sales  arrangements  with other  companies,  any  revenues it  receives  will be
dependent  on the  efforts of others,  and there can be no  assurance  that such
efforts will be successful.

     The  Company's  business  may  be  materially  adversely  affected  by  the
continuing efforts of government and third party payers to contain or reduce the
costs of health care through  various  means.  For example,  in certain  foreign
markets, pricing or profitability of prescription  pharmaceuticals is subject to
government  control.  In the United  States,  there have been,  and the  Company
expects that there will continue to be, a number of federal and state  proposals
to implement similar government control in such jurisdictions.  In addition,  an
increasing  emphasis  on  managed  care in the United  States has put,  and will

<PAGE>

continue to put,  pressure  on  pharmaceutical  pricing.  Such  initiatives  and
proposals, if adopted, could decrease the price that Neurocrine receives for any
products  it may develop  and sell in the  future,  and thereby  have a material
adverse  effect on the Company's  business,  financial  condition and results of
operations.  Further,  to the extent that such proposals or  initiatives  have a
material adverse effect on other pharmaceutical  companies that may be corporate
partners or prospective  corporate partners for certain the Company's  potential
products,  the Company's ability to commercialize the its potential products may
be materially adversely affected.

     The Company's ability to commercialize  pharmaceutical  products may depend
in part on the extent to which  reimbursement for the costs of such products and
related  treatments  will be available  from  government  health  administration
authorities,  private health insurers and other third-party payers.  Significant
uncertainty exists as to the reimbursement  status of newly approved health care
products, and third-party payers are increasingly challenging the prices charged
for  medical  products  and  services.  There  can  be  no  assurance  that  any
third-party  insurance  coverage  will be available to patients for any products
the Company develops.  Government and other third-party  payors are increasingly
attempting to contain  health care costs by limiting both coverage and the level
of reimbursement for new therapeutic  products,  and by refusing, in some cases,
to provide  coverage for uses of approved  products for disease  indications for
which the FDA has not granted marketing approval.  If government and third party
payors  do not  provide  adequate  coverage  and  reimbursement  levels  for the
Company's  products,  the market  acceptance of the Company's  products would be
materially adversely affected.

     THE COMPANY FACES INTENSE COMPETITION. The biotechnology and pharmaceutical
industries are subject to rapid and intense  technological  change.  The Company
faces,  and will continue to face,  competition in the development and marketing
of its product  candidates  from  academic  institutions,  government  agencies,
research   institutions  and   biotechnology   and   pharmaceutical   companies.
Competition  may arise  from  other drug  development  technologies,  methods of
preventing or reducing the  incidence of disease,  including  vaccines,  and new
small molecule or other classes of therapeutic agents. There can be no assurance
that developments by others will not render the Company's product  candidates or
technologies obsolete or noncompetitive.

      The Company is developing  products for the treatment of anxiety disorders
and  depression  which will compete  with  well-established  products  including
Valium(R), marketed by Hoffman-La Roche, Inc., Prozac(R) marketed by Eli Lilly &
Co., Zoloft(R) marketed by Pfizer,  Paxil(R) marketed by Smith Kline Beecham and
Celexa(R)  marketed by Forrest Labs.  Certain  technologies under development by
other  pharmaceutical  companies  could result in treatments for these and other
diseases and  disorders.  In  addition,  a number of  companies  are  conducting
research on molecules to block CRF to treat anxiety and depression.

     The Company is also developing a non-benzodiazepine  GABA-A agonist for the
treatment of Insomnia.  Ambien(R) and Sonata(R)  are  non-benzodiazepine  GABA-A
agonists    currently    marketed    for   the    treatment   of   Insomnia   by
Searle/Sanofi-Synthelabo and American Home Products, respectively.

     Guilford  Pharmaceuticals,  Inc. has  developed  Gliadel(R)  which has been
approved for use as an adjunct to surgery to prolong  survival in patients  with
recurrent  multiforme  glioblastoma for whom surgical resection is indicated and
will  compete  with  the   Company's   IL-4  Fusion  toxin   product   NBI-3001.
Temozolomide(R) marketed by Schering Plough may also compete with NBI-3001.

     Products that may be competitive  with NBI-5788 APL for Multiple  Sclerosis
include Betaseron(R) and Avonex(R), similar forms of beta-interferon marketed by
Berlex  BioSciences  and  Biogen,  Inc.,  respectively.  Copaxone(R),  a peptide
polymer marketed by Teva, has also been approved for the marketing in the United
States and certain  other  countries  for the  treatment of relapsing  remitting
multiple sclerosis.

     There are a number of  competitors  to products in the  Company's  research
pipeline. Tacrine(R),  marketed by Warner-Lambert Co., and Aricept(R),  marketed
by Pfizer Inc,  have been approved for the  treatment of  Alzheimer's  dementia.
Sales of these drugs may reduce the available market for any product  Neurocrine
develops for these indications. Other biotechnology and pharmaceutical companies
are  developing  compounds  to treat  obesity.  In the event that one or more of
these  products  and/or  programs are  successful,  the market for the Company's
products may be reduced or eliminated.

<PAGE>

     In addition, if the Company receives regulatory approvals for its products,
manufacturing efficiency and marketing capabilities are likely to be significant
competitive  factors.  At the  present  time,  the  Company  has  no  commercial
manufacturing capability, sales force or marketing experience. In addition, many
of the  Company's  competitors  and  potential  competitors  have  substantially
greater capital resources, research and development resources, manufacturing and
marketing  experience and production  facilities  than the Company does. Many of
these competitors also have significantly greater experience than the Company in
undertaking  preclinical  testing  and  clinical  trials  of new  pharmaceutical
products and obtaining FDA and other regulatory approvals.

     THE COMPANY'S SUCCESS IS DEPENDENT ON PATENTS AND PROPRIETARY  RIGHTS.  The
Company's  success  will  depend  on the  Company's  ability  to  obtain  patent
protection  for the Company's  products,  preserve the Company's  trade secrets,
prevent third parties from infringing upon the Company's proprietary rights, and
operate without  infringing upon the proprietary  rights of others,  both in the
United States and internationally. Because of the substantial length of time and
expense  associated  with  bringing new  products  through the  development  and
regulatory   approval   processes  in  order  to  reach  the  marketplace,   the
pharmaceutical  industry places considerable  importance on obtaining patent and
trade  secret   protection  for  new   technologies,   products  and  processes.
Accordingly,  Neurocrine  intends to seek patent  protection  for the  Company's
proprietary  technology  and  compounds.  There  can be no  assurance  as to the
success or timeliness in obtaining any such patents,  that the breadth of claims
obtained,  if any, will provide adequate protection of the Company's proprietary
technology or compounds,  or that the Company will be able to adequately enforce
any such claims to protect  its  proprietary  technology  and  compounds.  Since
patent  applications  in the United  States are  confidential  until the patents
issue,  and  publication of  discoveries in the scientific or patent  literature
tend to lag behind actual  discoveries by several months,  the Company cannot be
certain that it was the first  creator of inventions  covered by pending  patent
applications  or that it was the  first  to file  patent  applications  for such
inventions. Litigation, which could result in substantial cost, may be necessary
to enforce the Company's patent and license rights.

     The degree of patent protection  afforded to  pharmaceutical  inventions is
uncertain and any patents that may issue with regard to the Company's  potential
products  will be subject to this  uncertainty.  There can be no assurance  that
competitors  will not develop  competitive  products outside the protection that
may be afforded by the claims of the Company's patents. Other potential products
that the Company may develop may be novel and therefore  would not be covered by
composition  of matter  patent  claims.  In addition,  the Company is aware of a
number  of  patent  applications,   both  domestic  and  European,  relating  to
neurological  compounds,  and in particular  CRF receptor  antagonist  potential
therapeutics,  that  have been  filed by or are  controlled  by other  entities,
including the Company's competitors and potential  competitors.  There can be no
assurance that the Company's potential products can be commercialized  without a
license to any patents which may issue from such applications.

     The Company may be  required to obtain  licenses to patents or  proprietary
rights of others.  As the  biotechnology  industry  expands and more patents are
issued,  the risk  increases  that the Company's  potential  product may require
licenses  of third  party  technologies.  No  assurance  can be  given  that any
licenses required under any patents or proprietary rights of third parties would
be made available on acceptable  terms, or at all. If Neurocrine does not obtain
such licenses,  it could  encounter  delays in product  introductions  to design
around such patents, or it could find that the development,  manufacture or sale
of products  requiring  such licenses  could be  foreclosed.  Litigation  may be
necessary to defend against or assert such claims of infringement to enforce the
Company's issued patents and to protect the Company's trade secrets or know-how,
or to determine the scope and validity of the proprietary  rights of others.  In
addition,  interference  proceedings  declared by the United  States  Patent and
Trademark  Office may be necessary to determine the priority of inventions  with
respect  to  the  Company's  patent  applications  or  those  of  the  Company's
licensors.  Litigation or interference  proceedings  could result in substantial
costs to and diversion of effort by, and may have a material  adverse impact on,
us. In addition,  there can be no assurance that the Company's  efforts would be
successful.

     The Company also relies upon  unpatented  trade  secrets and  improvements,
unpatented  know-how  and  continuing  technological  innovation  to develop and
maintain the Company's competitive position, which it seeks to protect, in part,
by   confidentiality   agreements  with  the  Company's   commercial   partners,
collaborators,  employees and  consultants.  The Company has invention or patent
assignment  agreements  its  employees  and  certain,  but not  all,  commercial
partners and  consultants.  There can be no assurance that a person not bound by
an invention assignment  agreement will not develop relevant  inventions.  There
can be no assurance  that  binding  agreements  will not be  breached,  that the
Company will have  adequate  remedies for any breach,  or that its trade secrets
will not otherwise become known or be independently discovered by competitors.

<PAGE>

     As is  commonplace  in the  biotechnology  industry,  the  Company  employs
individuals   who  were   previously   employed   at  other   biotechnology   or
pharmaceutical  companies,  including  the  Company's  competitors  or potential
competitors.  To the extent the  Company's  employees  are  involved in research
areas at the  Company  which  are  similar  to those  areas in which  they  were
involved  at their  former  employer,  the Company may be subject to claims that
such  employees  and/or the Company  have  inadvertently  or  otherwise  used or
disclosed  the alleged  trade secrets or other  proprietary  information  of the
former  employers.  Litigation  may be necessary to defend  against such claims,
which could result in substantial costs and be a distraction to management,  and
which may have a material adverse effect on the Company,  even if the Company is
successful in defending such claims.

     THE COMPANY AND ITS PRODUCTS ARE SUBJECT TO STRICT  GOVERNMENT  REGULATION.
Regulation by government  authorities in the United States and foreign countries
is a significant  factor in the  development,  manufacture  and marketing of the
Company's  proposed  products and in the Company's  ongoing research and product
development  activities.  All of the Company's  products will require regulatory
approval by government agencies prior to commercialization. In particular, human
therapeutic  products are subject to rigorous  preclinical  testing and clinical
trials  and  other  approval  procedures  of  the  FDA  and  similar  regulatory
authorities  in  foreign  countries.  Various  federal  and state  statutes  and
regulations also govern or influence testing,  manufacturing,  safety, labeling,
storage and  record-keeping  related to such products and their  marketing.  The
process of obtaining these approvals and the subsequent  substantial  compliance
with  appropriate  federal  and  state  statutes  and  regulations  require  the
expenditure of substantial time and financial  resources.  If the Company or the
Company's  collaborators  or licensees  fail to obtain,  or encounter  delays in
obtaining or maintaining,  regulatory  approvals it could  adversely  affect the
marketing of any products the Company develops, the Company's ability to receive
product or royalty revenues and the Company's liquidity and capital resources.

     Preclinical  testing  is  generally  conducted  in  laboratory  animals  to
evaluate  the  potential  safety and the  efficacy of a product.  The results of
these studies are submitted to the FDA as a part of an Investigational  New Drug
Application ("IND"), which must be approved before clinical trials in humans can
begin.  Typically,  clinical  evaluation  involves a time  consuming  and costly
three-phase process.

Phase I        Clinical  trials are conducted  with a small number of subjects
               to  determine  the early  safety  profile,  the  pattern  of drug
               distribution and metabolism.

Phase II       Clinical  trials are conducted with groups of patients  afflicted
               with  a  specific  disease  in  order  to  determine  preliminary
               efficacy, optimal dosages and expanded evidence of safety.

Phase III      Large-scale,  multi-center, comparative trials are conducted with
               patients  afflicted  with a target  disease  in order to  provide
               enough data to demonstrate with substantial evidence the efficacy
               and safety required by the FDA.

     The FDA  closely  monitors  the  progress  of each of the  three  phases of
clinical  trials and may,  at its  discretion,  re-evaluate,  alter,  suspend or
terminate  the testing based upon the data which have been  accumulated  to that
point and its assessment of the risk/benefit ratio to the patient.

<PAGE>

     The results of preclinical testing and clinical trials are submitted to the
FDA  in  the  form  of a New  Drug  Application  ("NDA")  or  Biologics  License
Application  ("BLA") for approval to commence commercial sales. In responding to
an NDA or  BLA,  the  FDA  may  grant  marketing  approval,  request  additional
information or deny the  application if the FDA determines  that the application
does not satisfy its  regulatory  approval  criteria.  There can be no assurance
that approvals will be granted on a timely basis (or at all). If approved, there
can be no  assurance  that such  approval  will include  acceptable  labeling to
adequately commercialize the product. Similar regulatory procedures must also be
complied with in countries outside the United States.

     The results from  preclinical  testing and early clinical trials may not be
predictive of results obtained in later clinical trials. As a result,  there can
be no  assurance  that  clinical  trials the Company  conducts or the  Company's
corporate  partners conduct will demonstrate  sufficient  safety and efficacy to
obtain the requisite  regulatory approvals or will result in marketable products
or marketable  indications.  In addition,  late stage clinical  trials are often
conducted with patients having the most advanced  stages of disease.  During the
course of  treatment,  these  patients can die or suffer other  adverse  medical
effects for reasons  that may not be related to the  pharmaceutical  agent being
tested but which can  nevertheless  adversely  affect clinical trial results.  A
number of companies in the  biotechnology  and  pharmaceutical  industries  have
suffered  significant setbacks in advanced clinical trials, even after promising
results in earlier trials.  If the Company's drug candidates are not shown to be
safe and effective in clinical trials,  the resulting delays in developing other
compounds and conducting  related  preclinical  testing and clinical trials,  as
well as the  potential  need for  additional  financing,  would  have a material
adverse  effect on the Company's  business,  financial  condition and results of
operations.

     The rate of  completion  of clinical  trials the  Company or its  corporate
partners conduct may be delayed by many factors,  including slower than expected
patient  recruitment or unforeseen safety issues.  Any delays in, or termination
of, the clinical trials for the Company's products would have a material adverse
effect on the Company's business, financial condition and results of operations.
There can be no assurance that the Company or its Company's  corporate  partners
will be permitted by regulatory authorities to undertake clinical trials for the
Company's  products or, if such trials are conducted,  that any of the Company's
product  candidates  will  prove  to be safe  and  efficacious  or will  receive
regulatory approvals.

     THERE CAN BE NO ASSURANCE  THAT THE COMPANY'S  PRODUCTS WILL ACHIEVE MARKET
ACCEPTANCE.  The commercial  success of the Company's products that are approved
for marketing will depend upon their acceptance by the medical community as safe
and effective.  Factors the Company  believes will materially  affect the market
acceptance  of the  Company's  products  are  timing  of  receipt  of  marketing
approvals,  safety and  efficacy of the  product,  emergence  of  equivalent  or
superior products and cost effectiveness of the product

     THE COMPANY  WILL  REQUIRE  ADDITIONAL  FUNDING.  The Company  will require
substantial  additional  funding in order to continue the Company's research and
product development programs,  including preclinical testing and clinical trials
of the Company's product candidates, for operating expenses, and for the pursuit
of  regulatory  approvals  for  product  candidates.  The  Company  may  require
additional funding for establishing  manufacturing and marketing capabilities in
the future. The Company believes that its existing capital  resources,  together
with interest income and future payments due under strategic alliances,  will be
sufficient to satisfy the Company's current and projected  funding  requirements
through 2003. However,  such resources might be insufficient to conduct research
and development  programs as planned.  The Company's future capital requirements
will depend on many factors, including:

o    continued scientific progress in its research and development programs,
o    the magnitude of the Company's R&D programs,
o    progress with preclinical testing and clinical trials,
o    the time and costs involved in obtaining regulatory approvals,
o    the costs  involved  in filing  and  prosecuting  patent  applications  and
     enforcing patent claims,
o    competing technological and market developments,
o    the establishment of additional strategic alliances,
o    the cost of manufacturing  facilities and of  commercialization  activities
     and arrangements, and
o    the cost of product in-licensing and any possible acquisitions.

     The Company's  cash reserves and other liquid assets  together with funding
that may be received  under the  Company's  strategic  alliances,  and  interest
income earned thereon,  might be inadequate to satisfy the Company's capital and
operating requirements.

     The Company intends to seek additional funding through strategic alliances,
and may seek additional funding through public or private sales of the Company's
securities,  including equity securities.  In addition, the Company has obtained
equipment leases and may continue to pursue  opportunities to obtain  additional
debt financing in the future. However, additional equity or debt financing might
not  be  available  on  reasonable  terms,  if at  all.  Any  additional  equity
financings  would be dilutive to the Company's  stockholders.  If adequate funds
are not available,  the Company may be required to curtail  significantly one or
more of the  Company's  research and  development  programs  and/or obtain funds
through  arrangements  with corporate  partners or others that may require us to
relinquish   rights  to  certain  of  the  Company's   technologies  or  product
candidates.

<PAGE>

     THE COMPANY DEPENDS ON KEY MANAGEMENT AND EMPLOYEES.  The Company is highly
dependent on the principal  members of its management and scientific  staff. The
loss of any of these  people  could  impede  the  achievement  of the  Company's
development   objectives.   Furthermore,   recruiting  and  retaining  qualified
scientific personnel to perform research and development work in the future will
also be  critical  to the  Company's  success.  The  Company  might be unable to
attract and retain  personnel on acceptable  terms given the  competition  among
biotechnology,  pharmaceutical  and  health  care  companies,  universities  and
non-profit research institutions for experienced  scientists.  In addition,  the
Company  relies on members of its  Scientific  Advisory  Board and a significant
number  of  consultants  to  assist  us in  formulating  the  its  research  and
development  strategy.  All of the  Company's  consultants  and  members  of the
Scientific Advisory Board are employed by employers other than the Company. They
may have  commitments  to, or  advisory or  consulting  agreements  with,  other
entities that may limit their availability to the Company.

     POTENTIAL PRODUCT LIABILITY  EXPOSURE AND LIMITED INSURANCE  COVERAGE.  The
use of any of the Company's  potential products in clinical trials, and the sale
of any  approved  products,  may expose the Company to liability  claims.  These
claims   might  be  made   directly  by   consumers,   health  care   providers,
pharmaceutical  companies  or others  selling  such  products.  The  Company has
obtained limited product liability insurance coverage for the Company's clinical
trials in the  amount of $5.0  million  per  occurrence  and $5  million  in the
aggregate.  The Company  intends to expand or insurance  coverage to include the
sale of  commercial  products if marketing  approval is obtained for products in
development. However, insurance coverage is becoming increasingly expensive, and
the Company  might not be able to maintain  insurance  coverage at a  reasonable
cost or in sufficient amounts to protect us against losses due to liability. The
Company  may be unable  to  obtain  commercially  reasonable  product  liability
insurance  for  any  products  approved  for  marketing.  A  successful  product
liability  claim or series of claims  brought  against the Company  could have a
material adverse effect on the Company's  business and cause the Company's stock
price to fall.

     THE  COMPANY'S  ACTIVITIES  INVOLVE  HAZARDOUS  MATERIALS.   The  Company's
research  activities  involve the  controlled  use of hazardous  materials.  The
Company can not eliminate the risk of  accidental  contamination  or injury from
these materials. In the event of an accident, the Company may be held liable for
any resulting  damages,  which may materially and adversely affect the Company's
financial condition and results of operations.

     THE PRICE OF THE COMPANY'S COMMON STOCK IS VOLATILE.  The market prices for
securities of biotechnology and pharmaceutical  companies have historically been
highly volatile,  and the market has from time to time  experienced  significant
price and volume fluctuations that are unrelated to the operating performance of
particular  companies (See price  information on page 24). The following factors
may have an adverse effect on the Company's stock price:

o        fluctuations in operating results
o        announcements of technological innovations or new therapeutic products
         by the Company or others
o        clinical trial results
o        developments concerning strategic alliance agreements,
o        government regulation
o        developments in patent or other proprietary rights
o        public concern as to the safety of the Company's drugs
o        future sales of substantial amounts of the Company's Common Stock by
         existing stockholders
o        comments by securities analysts and general market conditions

     The realization of any of the risks described in these "Risk Factors" could
cause the Company's stock price to fall dramatically.

<PAGE>

     POTENTIAL  ADVERSE  EFFECT  OF  ANTI-TAKEOVER  PROVISIONS.   The  Company's
Certificate of Incorporation provides for staggered terms for the members of the
Company's  Board of Directors and does not provide for cumulative  voting in the
election of Directors.  In addition,  the  Company's  Board of Directors has the
authority,  without  further action by the  stockholders,  to fix the rights and
preferences of, and issue shares of, Preferred Stock. In April 1997, the Company
adopted a  Stockholder  Rights Plan,  commonly  referred to as a "Poison  Pill".
Further,  the  Company  is  subject  to  Section  203  of the  Delaware  General
Corporation  Law  which,  subject  to  certain  exceptions,   restricts  certain
transactions and business  combinations  between a corporation and a stockholder
owning 15% of more of the corporation's outstanding voting stock for a period of
three years from the date the stockholder becomes an interested stockholder. The
Stockholder  Rights Plan,  staggered  board terms,  lack of  cumulative  voting,
Preferred  Stock  provisions and other  provisions of the Company's  charter and
Delaware corporate law may discourage certain types of transactions involving an
actual or potential change in control of the Company.


SCIENTIFIC ADVISORY BOARD

     Neurocrine  has  assembled  a  Scientific  Advisory  Board  that  currently
consists of 12 individuals. Members of the Scientific Advisory Board are leaders
in  the  fields  of  neurobiology,  immunology,  endocrinology,  psychiatry  and
medicinal  chemistry.  Scientific Advisory Board members meet at least yearly to
advise the Company in the selection,  implementation  and  prioritization of its
research  programs.  Certain  members meet more frequently to advise the Company
with regard to its specific programs.

     The  Scientific   Advisory  Board  presently   consists  of  the  following
individuals:

     SUSAN G. AMARA,  PH.D., a Senior Scientist and Professor,  Vollum Institute
for Advanced  Biomedical  Research is an expert on the  cellular  and  molecular
biology of  neurotransmitter  transporters,  excitatory  amino acid  transporter
structure and regulation and signaling roles of neurotransmitter transporters.

     FLOYD E. BLOOM, M.D., is Chairman of the Department of Neuropharmacology at
The Scripps  Research  Institute.  Dr.  Bloom is an  internationally  recognized
expert in the fields of  neuropharmacology  and neurobiology.  He is the current
editor of the journal, Science.

     MICHAEL BROWNSTEIN, M.D., Ph.D., is Chief of the Laboratory of Cell Biology
at the  National  Institute  of  Mental  Health.  He is a  recognized  expert in
molecular pharmacology as it applies to the field of  neuroendocrinology,  where
he has defined many of the pharmaceutically important neurotransmitter receptors
and transporter systems.

     ROGER D.  CONE,  PH.D.,  a senior  scientist  at the Vollum  Institute  for
Advanced Biomedical  Research,  is an international expert on the neuroendocrine
system,   with  particular   expertise  on  the  melanocortin   system  and  the
hypothalamic  control  of  energy  homeostasis.  Dr.  Cone is an  editor  of the
journal, Endocrinology.

     STEPHEN M. HEDRICK, PH.D., is Professor and Chairman of Cell Biology at the
University  of  California,  San  Diego.  Dr.  Hedrick  is an  expert  in T cell
immunology and  co-discovered the first T cell receptor genes and identified the
regions  responsible  for  antigen  binding.  He is an editor for the Journal of
Immunology.

     FLORIAN HOLSBOER,  M.D., PH.D., is Director at the Max Planck Institute fur
Psychiatrie.   Dr.  Holsboer  is  an   international   expert  on  the  role  of
glucocorticoids   and  neuropeptides,   particularly  CRF,  in  neuropsychiatric
disorders.  He  coordinates  the  efforts  of  several  hundred  scientists  and
clinicians  at the  Max  Planck  Institute,  a major  European  neuropsychiatric
institute.

     GEORGE F. KOOB,  PH.D., is a Member of the Department of  Neuropharmacology
at The Scripps Research Institute and an Adjunct Professor in the Departments of
Psychology and Psychiatry at the University of California,  San Diego.  Dr. Koob
is an internationally  recognized behavioral  pharmacology expert on the role of
peptides in the central nervous system, the neurochemical basis of addiction and
in the  development  of preclinical  behavioral  procedures for the screening of
anxiolytic and antidepressant drugs and memory enhancers.

     CHARLES  B.  NEMEROFF,  M.D.,  PH.D.,  is  Chairman  and  Professor  of the
Department of Psychiatry and Behavioral  Sciences at Emory University  School of
Medicine. Dr. Nemeroff is an internationally recognized expert on the effects of
neuropeptides on behavior and their relevance in clinically important conditions
such as  depression,  anxiety  and  schizophrenia,  and has  published  over 400
articles on this subject.

<PAGE>

     THOMAS ROTH,  PH.D., is the Head of the Division of Sleep Disorder Research
at the Henry Ford Hospital Research  Institute.  Dr. Roth is an  internationally
recognized  expert in the field of sleep research.  His areas of  specialization
are sleep homeostasis and neuropharmacology of sleep.

     LAWRENCE J. STEINMAN, M.D., is Chief Scientific Advisor, Neuroimmunology of
the  Company  and a member of  Neurocrine's  Founding  Board of  Scientific  and
Medical Advisors and its Executive Committee.

     WYLIE W. VALE, PH.D., is Chief Scientific  Advisor,  Neuroendocrinology  of
the  Company  and a member of  Neurocrine's  Founding  Board of  Scientific  and
Medical Advisors and its Executive Committee. See "Item 10 -- Executive Officers
and Directors of the Registrant."

     STANLEY J. WATSON,  JR., M.D.,  PH.D., is Professor and Associate Chair for
Research in the  Department of Psychiatry  and  Co-Director of the Mental Health
Research  Institute at the  University  of Michigan.  Dr. Watson is a recognized
expert in  neuropeptides  and their  receptors  and  their  role in  psychiatric
diseases and behavior.  Dr. Watson is also a member of the Institute of Medicine
of the National Academy of Sciences.

     Each of the members of the Scientific Advisory Board have signed consulting
agreements that contain  confidentiality  provisions and restrict the members of
the  Scientific  Advisory  Board from competing with the Company for the term of
the agreement.  Each member of the Scientific  Advisory Board receives  either a
per diem  consulting  fee or a retainer fee. Each member also has received stock
or stock  options  in the  Company,  which vest over  time.  All  members of the
Scientific  Advisory  Board are full-time  employees of a university or research
institute  that has  regulations  and  policies  which limit the ability of such
personnel  to act as  part-time  consultants  or in  other  capacities  for  any
commercial  enterprise,  including the Company. A change in these regulations or
policies could  adversely  affect the  relationship  of the Scientific  Advisory
Board member with the Company.


INSURANCE

     The Company maintains product liability  insurance for clinical trials. The
Company  intends  to  expand  its  insurance  coverage  to  include  the sale of
commercial   products  if  marketing   approval  is  obtained  for  products  in
development. However, insurance coverage is becoming increasingly expensive, and
no assurance  can be given that the Company  will be able to maintain  insurance
coverage at a reasonable  cost or in  sufficient  amounts to protect the Company
against losses due to liability. There can also be no assurance that the Company
will be able to obtain  commercially  reasonable product liability insurance for
any products  approved for marketing.  A successful  product  liability claim or
series of claims  brought  against  the  Company  could have a material  adverse
effect on its business, financial condition and results of operations.


EMPLOYEES

     As of December 31, 1999, the Company had 151  employees,  consisting of 142
full-time and 9 part-time employees.  Of the full-time employees, 50 hold Ph.D.,
M.D., or equivalent degrees.  None of the Company's employees are represented by
a collective bargaining  arrangement,  and the Company believes its relationship
with its  employees is good.  The Company is highly  dependent on the  principal
members of its management and scientific  staff.  The loss of services of any of
these  personnel  could  impede the  achievement  of the  Company's  development
objectives. Furthermore, recruiting and retaining qualified scientific personnel
to perform  research and development work in the future will also be critical to
the Company's  success.  There can be no assurance that the Company will be able
to attract and retain personnel on acceptable terms given the competition  among
biotechnology,  pharmaceutical  and  health  care  companies,  universities  and
non-profit research institutions for experienced  scientists.  In addition,  the
Company  relies on members of its  Scientific  Advisory  Board and a significant
number of  consultants  to assist the Company in  formulating  its  research and
development strategy.

<PAGE>

ITEM 2.  PROPERTIES

     The  Company  leases  approximately  93,000  square  feet of  space  at its
headquarters  facility,  of which  approximately  65% is  laboratory  facilities
dedicated to research and development.  The facility was constructed in 1998 and
is under lease through August 2013. The Company has sublet  approximately 13,000
square feet of this  facility  through  August 2000.  In  addition,  the Company
leases  approximately  19,000 square feet of laboratory and office space,  which
has been sublet to a third party. The lease and sublease on this property expire
in June 2000. The Company's facilities are located in San Diego, California.

     The Company  believes that its property and  equipment  are generally  well
maintained, in good operating condition and adequate for its current needs.


ITEM 3.  LEGAL PROCEEDINGS

     Not Applicable.


ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     Not Applicable.



                                     PART II


ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

     The Company's  Common Stock has been traded on the Nasdaq  National  Market
System under the symbol NBIX since the Company's  initial public offering on May
23, 1996. Prior to that time there was no established  public trading market for
the  Company's  Common  Stock.  The  following  table sets forth for the periods
indicated  the high and low sale price for the Common  Stock as  reported by the
Nasdaq National Market. These prices do not include retail markups, markdowns or
commissions.
                                              1999           1998
                                       -------------  --------------
                                        High   Low     High    Low
                                       -------------  --------------

         1st Quarter ................. $7.50  $4.88   $10.13   $7.56
         2nd Quarter .................  5.88   4.00     9.06    7.38
         3rd Quarter .................  5.94   3.75     8.13    4.00
         4th Quarter ................. 29.63   5.38     8.00    4.13

     As of March 15, 2000, there were  approximately  160 stockholders of record
of the Company's  Common Stock.  The Company has not paid any cash  dividends on
its  Common  Stock  since its  inception  and does not  anticipate  paying  cash
dividends in the foreseeable future.


<PAGE>



ITEM 6.  SELECTED FINANCIAL DATA

     The following  selected financial data have been derived from the Financial
Statements of the Company,  which have been audited by Ernst & Young LLP,  whose
reports appear elsewhere herein. The information  presented below should be read
in  conjunction  with the  Company's  Financial  Statements  and  Notes  thereto
included elsewhere in this Form 10-K. See "Management's  Discussion and Analysis
of Financial Condition and Results of Operations."

     The following  tables set forth certain  financial data with respect to the
Company (in  thousands,  except per share  data).  The selected  financial  data
should be read in conjunction  with the  consolidated  financial  statements and
notes thereto.

<TABLE>
<CAPTION>

                                                         1999       1998(1)     1997         1996       1995
                                                       -------     -------     -------      ------      ------
<S>                                                   <C>         <C>           <C>         <C>        <C>
STATEMENT OF OPERATIONS DATA
Revenues

      Sponsored research and development ........      $12,171      $8,751     $14,985      $9,092      $3,000
      Sponsored research and development from
          related party .........................          491       3,610        --          --          --
      Milestones and license fees ...............        3,000       2,500      10,250       9,000       2,750
      Grant income and other revenues ...........        1,129       1,176         909       1,124         356
                                                       -------     -------     -------      ------      ------
      Total revenues ............................       16,791      16,037      26,144      19,216       6,106

Operating expenses
      Research and development ..................       29,169      21,803      18,758      12,569       7,740
      General and administrative ................        7,476       6,594       5,664       3,697       2,728
      Write-off of acquired in-process research
          and development and licenses ..........         --         4,910        --          --          --
                                                       -------     -------     -------      ------      ------
      Total operating expenses ..................       36,645      33,307      24,422      16,266      10,468

Income (loss) from operations ...................      (19,854)    (17,270)      1,722       2,950      (4,362)

         Interest income, net ...................        2,851       4,000       3,931       2,598         839
         Other income (expense) .................        1,066         504         818         574         177
         Equity in NPI net losses and other
            adjustments .........................         (885)     (7,188)     (1,130)       --          --
                                                       -------     -------     -------      ------      ------
Net income (loss) before income taxes ...........      (16,822)    (19,954)      5,341       6,122      (3,346)
         Income taxes ...........................         --             1         214         248        --
                                                       -------     -------     -------      ------      ------
Net income (loss) ...............................     $(16,822)   $(19,955)     $5,127      $5,874     $(3,346)
                                                      ========    ========      ======      ======     =======
Earnings per share
      Basic .....................................       $(0.88)     $(1.10)     $ 0.30      $ 0.39     $ (0.29)
      Diluted ...................................        (0.88)      (1.10)       0.28        0.36       (0.29)
Shares used in calculation of earnings per share
      Basic .....................................       19,072      18,141      16,930      14,971      11,684
      Diluted ...................................       19,072      18,141      18,184      16,127      11,684

BALANCE SHEET DATA
Cash, cash equivalents and short-term investments     $ 91,098    $ 62,670    $ 75,092    $ 69,920    $ 18,696
Total assets ....................................      109,222      80,529      91,903      77,957      24,012
Long-term debt and capital lease obligations ....        2,139       2,247         722         847       1,631
Accumulated deficit .............................      (41,672)    (24,850)     (4,895)    (10,022)    (15,895)
Total stockholders' equity ......................       96,354      71,958      83,152      72,767      19,225
- ----------
<FN>
(1)  Includes  results  of  operations  and  financial   position  of  Northwest
     NeuroLogic,  Inc. from May 28, 1998, the date of acquisiton  (See Note 8 of
     the Notes to the Consolidated Financial Statements).
</FN>
</TABLE>
<PAGE>


ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
RESULTS OF OPERATIONS

     The following  Management's  Discussion and Analysis of Financial Condition
and Results of Operations of Neurocrine  Biosciences,  Inc. ("Neurocrine" or the
"Company"),  as well as the  preceding  sections of this  Annual  Report on Form
10-K, contain forward-looking  statements which involve risks and uncertainties,
pertaining generally to the expected continuation of the Company's collaborative
agreements,  the receipt of research payments thereunder, the future achievement
of various milestones in product development and the receipt of payments related
thereto,  the  potential  receipt of royalty and  profit-sharing  payments,  the
anticipated dates of commencement of selection of development candidates and the
commencement of clinical  trials,  the successful  continuation of the Company's
research  and  development  programs  and the  potential  development  of future
products,  the period of time the Company's existing capital resources will meet
its funding  requirements,  and the Company's  financial  results of operations.
Actual  results  could  differ   materially  from  those   anticipated  in  such
forward-looking  statements as a result of various factors,  including those set
forth below, and those outlined in the Business section of Item 1.


OVERVIEW

     Since the  founding of the  Company in January  1992,  Neurocrine  has been
engaged in the discovery and  development of novel  pharmaceutical  products for
diseases  and  disorders  of the central  nervous and immune  systems.  To date,
Neurocrine  has not generated  any revenues from the sale of products,  and does
not expect to generate any product revenues for the foreseeable future. Revenues
are expected to come from the  Company's  strategic  alliances.  Neurocrine  has
incurred a cumulative deficit of approximately  $41.7 million as of December 31,
1999 and expects to incur additional  operating losses in the future,  which may
be potentially greater than losses in prior years.


     Since inception,  Neurocrine has primarily  financed its operations through
proceeds  received  from the sale of its  Common  Stock in various  private  and
public offerings,  as well as revenues received under corporate  collaborations.
The Company operates in a single business segment and has no foreign operations.


RESULTS OF OPERATIONS

    The  Company's  revenues  for the year ended  December  31,  1999 were $16.8
million compared with $16.0 million in 1998, and $26.1 million in 1997. Although
similar  in  amount,  revenues  for 1999 and 1998 have a  different  composition
resulting from several significant events. During 1999, the Company entered into
a collaborative  agreement with Wyeth-Ayerst  ("Wyeth") and agreed to a two-year
extension  of  its  1995   collaboration   with  Janssen   Pharmaceutica,   Inc.
("Janssen").  Revenues  received in 1999 under the new  agreements  consisted of
$5.4 million of sponsored  research and development  funding and $3.0 million in
milestone achievements.

    The increase in 1999 revenues  generated by the new agreements was offset by
a  decline  of in  revenues  received  under  the  Eli  Lily,  Novartis  and NPI
collaborations  that  were  concluded  during  the  year.  Revenues  in 1998 for
sponsored  research and  development  funding and milestone  achievements  under
these agreements were $5.0 million and $2.3 million, respectively.

    Revenues  recorded  during  1997  included  the  initiation  of the Eli Lily
collaboration  and the final year of sponsored  research  funding under the 1995
Janssen  agreement.  Revenues in 1997 for  sponsored  research  and  development
funding and milestone  achievements under these and the Novartis agreements were
higher  than  those  recorded  in  1999  by  $12.2  million  and  $5.3  million,
respectively.

     Research and  development  expenses  increased to $29.2 million during 1999
compared  with  $21.8  million  in 1998 and  $18.8  million  in 1997.  Increased
expenses   reflect   advancement  of  the  Company's  drug  candidates   through
progressive   clinical   development   phases.  The  Company  expects  to  incur
significant increases in future periods as later phases of development typically
involve an increase in the scope of studies and number of patients treated.

     General and  administrative  expenses increased to $7.5 million during 1999
compared with $6.6 million in 1998 and $5.7 million in 1997.  Increased expenses
resulted  from  additional  professional  services,  including  patent and legal
services,  to support the Company's expanded clinical  development  efforts. The
Company anticipates similar increases in general and administrative  expenses in
the future as these efforts continue.

<PAGE>

     During  1998,  the  Company  wrote-off  acquired  in-process  research  and
development  costs of $4.9 million.  This amount included the acquisition of NNL
and  the  in-licensing  of  drug  candidates  for  the  Company's  insomnia  and
glioblastoma  programs.  Both of the  in-licensed  programs are currently  under
clinical development.

     Interest  income  decreased to $3.1 million  during 1999 compared with $4.2
million for 1998 and $4.1 million in 1997.  The decrease in 1999  compared  with
1998 and 1997  primarily  resulted from lower  investment  balances.  Management
anticipates an increase in interest income during future periods  resulting from
cash reserves  generated by the sale of the  Company's  Common Stock in December
1999 and increased revenues from anticipated collaborations.

     In December  1999,  the Company sold its  investment  in NPI. The Company's
proportionate  share of NPI  operating  losses  during 1999,  1998 and 1997 were
$764,000, $3.4 million and $1.1 million,  respectively. In addition, the Company
recorded a write-down in the investment  value of $646,000  during 1999 and $3.8
million during 1998 relating to the decline in cash redemption  value of the NPI
Preferred Shares.

     Net loss for 1999 was $16.8 million or $0.88 per share compared to net loss
of $20.0  million or $1.10 per share for 1998 and net income of $5.1  million or
$0.30 per share for 1997.  Management  expects to incur similar operating losses
in the next two to three years as its clinical  development  efforts continue to
grow.

     To date, the Company's  revenues have come principally from funded research
and  achievements of milestones under corporate  collaborations.  The nature and
amount  of  these  revenues  from  period  to  period  may  lead to  substantial
fluctuations in the results of year-to-date revenues and earnings.  Accordingly,
results and earnings of one period are not predictive of future periods.


LIQUIDITY AND CAPITAL RESOURCES

     As of  December  31,  1999,  the  Company had cash,  cash  equivalents  and
short-term  investments  of $91.1  million  compared  with $62.7 at December 31,
1998.  The Company  invests its excess cash  primarily in investment  grade debt
instruments,   marketable  debt  securities  of  U.S.  government  agencies  and
high-grade commercial paper.  Management has established  guidelines relative to
diversification  and  maturities  that  are  intended  to  maintain  safety  and
liquidity.   The  primary  market  risk  associated  with  such  investments  is
vulnerability  to changes in short-term and long-term U.S. prime interest rates.
For further information regarding the Company's  investments,  see Notes 1 and 2
of the Notes to the Consolidated Financial Statements.

     Net  cash  used by  operating  activities  during  1999 was  $10.3  million
compared  with $10.7  million in 1998 and net cash  provided of $11.0 million in
1997.  The decrease in cash used in  operations  during 1999 compared with 1998,
resulted  primarily from  increased  sponsored  research and milestone  revenues
received  under the Company's  collaborations  during 1999. The increase in cash
used during 1998 compared with 1997,  resulted  primarily from higher  sponsored
research and milestone  revenues  received  under the  Company's  collaborations
during 1997,  which included a $5.0 million lump sum payment from Eli Lilly,  in
addition  to lower  operating  expenses.  Management  anticipates  current  year
operating  activities  to use  approximately  40% more cash than prior  years as
clinical development efforts continue to grow.

     Net  cash  used by  investing  activities  during  1999 was  $21.2  million
compared  with net cash  provided  of $4.7  million in 1998 and net cash used of
$7.2 million in 1997. The cash used by investing activities during 1999 resulted
primarily  from  purchase  of  short-term  investments.  The  cash  provided  in
investing  activities  during 1998 compared with cash used in 1997 resulted from
the sale of short-term investments. During 2000, the Company expects to maintain
the  majority of its  investment  positions.  Capital  equipment  purchases  are
expected  to be $2.4  million of which $2.0  million  will be  financed  through
leasing arrangements.

     Net cash  provided by financing  activities  during 1999 was $41.0  million
compared with $1.9 million and $659,000 during 1998 and 1997, respectively. Cash
provided  during 1999 resulted from net proceeds  received from the private sale
of the  Company's  Common Stock and  exercise of employee  stock  options.  Cash
provided  during  1998  resulted  from  capital  lease  financing  of  equipment
purchases. Cash provided during 1997 resulted from the issuance of the Company's
Common  Stock upon the  exercises  of stock  options and  warrants  and proceeds
received  from a note payable  used to finance the purchase of land.  Management
expects  current year  financing  arrangement  for equipment  leasing and equity
issuances to provide cash similar to that of 1998.

<PAGE>

     In December  1999,  Neurocrine  signed an exclusive  agreement  with Taisho
Pharmaceutical Co. LTD ("Taisho")  providing Taisho an option to obtain European
and Asian commercialization rights for Neurocrine's altered peptide ligand (APL)
for diabetes  (NBI-6024).  Neurocrine would retain all rights in the rest of the
world, including North America..

     In September  1999,  the Company  signed an amendment to its 1995 agreement
with Janssen Pharmaceutica,  N.V. ("Janssen").  The amendment provides for a new
sponsored  research  period  designed  to identify  new  corticotropin-releasing
factor ("CRF")  receptor  antagonists  which will be subject to the terms of the
original  agreement signed in 1995. The term of the amendment is from April 1999
through  February  2001.  Under the  agreement,  the Company  will  receive $5.0
million  in  sponsored  research  funding,  up  to  $3.5  million  in  milestone
achievements,  $500,000  for  research  already  conducted  under  this  certain
technology  and  reimbursement  of all outside and third party costs  associated
with the project. As of December 31, 1999, the Company has received $1.9 million
in sponsored research and the $500,000 payment for prior research.

     In March 1999,  the Company  entered  into an agreement  with  Wyeth-Ayerst
Laboratories, the pharmaceutical division of American Home Products Corporation,
on the research,  development and commercialization of compounds, which modulate
EAATs for the treatment of neurodegenerative and psychiatric diseases.

     The  Wyeth-Ayerst  Agreement,  valued at up to $81  million if a product is
commercialized,   includes:   sharing  proprietary  technologies,   funding  for
research, payments for milestones reached, plus royalties on sales from products
resulting from the collaboration.  Under the terms of the agreement,  Neurocrine
expects to receive  three to five years of funding for research and  development
as well as worldwide  royalties on commercial sales of products that result from
the  collaboration.  Wyeth-Ayerst  will also provide  Neurocrine  with access to
chemical libraries for screening within the collaborative  field. As of December
31, 1999, the Company has received $3.0 million in sponsored  research  payments
and $3.0 million for the achievement of four milestones.

     The Company  believes that its existing  capital  resources,  together with
interest income and future payments due under the strategic  alliances,  will be
sufficient to satisfy its current and projected  funding  requirements  at least
through the year 2003.  However,  no  assurance  can be given that such  capital
resources   and  payments  will  be  sufficient  to  conduct  its  research  and
development programs as planned. The amount and timing of expenditures will vary
depending upon a number of factors, including progress of the Company's research
and development programs.

     Neurocrine  will require  additional  funding for the  continuation  of its
research and product development programs, for progress with preclinical testing
and clinical  trials,  for  operating  expenses,  for the pursuit of  regulatory
approvals  for its  product  candidates,  for the costs  involved  in filing and
prosecuting  patent  applications and enforcing or defending  patent claims,  if
any, the cost of product  in-licensing  and any possible  acquisitions,  and may
require  additional   funding  for  establishing   manufacturing  and  marketing
capabilities in the future. The Company may seek to access the public or private
equity markets  whenever  conditions  are  favorable.  The Company may also seek
additional funding through strategic  alliances and other financing  mechanisms,
potentially  including  off-balance  sheet financing.  There can be no assurance
that adequate funding will be available on terms  acceptable to the Company,  if
at all.  If  adequate  funds are not  available,  the Company may be required to
curtail  significantly  one or more of its research or  development  programs or
obtain funds through  arrangements with collaborative  partners or others.  This
may require the Company to relinquish  rights to certain of its  technologies or
product candidates.

     Neurocrine expects to incur operating losses over the next several years as
its research,  development,  preclinical  testing and clinical trial  activities
increase. To the extent that the Company is unable to obtain third party funding
for such expenses,  the Company  expects that increased  expenses will result in
increased losses from  operations.  There can be no assurance that the Company's
products under development will be successfully  developed or that its products,
if  successfully  developed,  will  generate  revenues  sufficient to enable the
Company to earn a profit.

<PAGE>

INTEREST RATE RISK

     The Company is exposed to changes in  interest  rates its  long-term  debt.
Under its current  policies,  the Company does not use interest rate  derivative
instruments to manage exposure to interest rate changes.

     During 1997, the Company partially  financed the purchase of land under a 5
year note payable for approximately $747,000, which bears interest at a floating
rate of prime plus one quarter percent (8.75% and 8.00% at December 31, 1999 and
1998,  respectively).  The  note is  repayable  in  equal  monthly  installments
beginning  February  1998.  At December 31, 1999,  the balance of the note was $
461,000.  The  repayment  schedule  for the note is $149,000  for each year 2000
through 2002 and $13,000 in the year 2003.

     The Company  believes that a  hypothetical  100 basis point adverse move in
interest  rates along the entire  interest rate yield curve would not materially
effect the fair value of interest sensitive financial  instruments nor the costs
associated with the long-term debt.


IMPACT OF YEAR 2000

     Beginning in 1998, the Company conducted a program to address the impact of
the Year 2000 on the  processing of date  sensitive  information by our computer
systems  and  software  ("IT  Systems"),  embedded  systems in our  non-computer
equipment  ("Non-IT  Systems") and  relationships  with certain  third  parties.
Assessment,  testing,  and  remediation of the Company's  critical  systems were
completed in mid-October  1999.  Based on survey responses and Year 2000 website
statements,  the Company also assessed Year 2000 readiness of third parties with
which it has significant  relationships.  Contingency  plans were formulated for
each of the Company's critical systems and third party relationships, which were
deficient in compliance criteria.

     The total costs,  both  out-of-pocket  and internal,  of the Company's Year
2000 program were  estimated  at $175,000 and were funded with  available  cash.
There are no further costs anticipated. Other internal systems projects were not
significantly  deferred as a result of the Year 2000 readiness program,  because
much of the Year 2000  assessment and  remediation  efforts were integrated into
the Company's routine maintenance and upgrade programs. To date, there have been
no  material  adverse  effects  caused by the January 1, 2000 date change on the
Company's IT and Non-IT Systems,  third party relationships,  nor its results of
operations.


CAUTION ON FORWARD-LOOKING STATEMENTS

     The Company's business is subject to significant  risks,  including but not
limited  to, the risks  inherent in its  research  and  development  activities,
including the successful continuation of the Company's strategic collaborations,
the  successful  completion  of clinical  trials,  the  lengthy,  expensive  and
uncertain process of seeking regulatory approvals, uncertainties associated both
with the  potential  infringement  of patents  and other  intellectual  property
rights of third  parties,  and with  obtaining and enforcing its own patents and
patent rights, uncertainties regarding government reforms and of product pricing
and reimbursement  levels,  technological change and competition,  manufacturing
uncertainties  and  dependence on third parties.  Even if the Company's  product
candidates appear promising at an early stage of development, they may not reach
the market for numerous reasons. Such reasons include the possibilities that the
product will be  ineffective  or unsafe  during  clinical  trials,  will fail to
receive necessary  regulatory  approvals,  will be difficult to manufacture on a
large  scale,  will  be  uneconomical  to  market  or  will  be  precluded  from
commercialization by proprietary rights of third parties.



ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     Quantitative and Qualitative  Disclosures about Market Risk is contained in
Item 7. Management Discussion and Analysis--Interest Rate Risk.

<PAGE>

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

     See the list of the  Company's  Financial  Statements  filed with this Form
10-K under Item 14 below.



ITEM 9.   CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
          FINANCIAL DISCLOSURE

     Not Applicable.



                                    PART III


ITEM 10.  EXECUTIVE OFFICERS AND DIRECTORS OF THE REGISTRANT

     Information required by this item will be contained in the Company's Notice
of 2000  Annual  Meeting  of  Stockholders  and  Proxy  Statement,  pursuant  to
Regulation 14A, to be filed with the Securities and Exchange  Commission  within
120 days after December 31, 1999.  Such  information is  incorporated  herein by
reference.


ITEM 11.  EXECUTIVE COMPENSATION

     Information required by this item will be contained in the Company's Notice
of 2000  Annual  Meeting  of  Stockholders  and  Proxy  Statement,  pursuant  to
Regulation 14A, to be filed with the Securities and Exchange  Commission  within
120 days after December 31, 1999.  Such  information is  incorporated  herein by
reference.


ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     Information required by this item will be contained in the Company's Notice
of 2000  Annual  Meeting  of  Stockholders  and  Proxy  Statement,  pursuant  to
Regulation 14A, to be filed with the Securities and Exchange  Commission  within
120 days after December 31, 1999.  Such  information is  incorporated  herein by
reference.


ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     Information required by this item will be contained in the Company's Notice
of 2000  Annual  Meeting  of  Stockholders  and  Proxy  Statement,  pursuant  to
Regulation 14A, to be filed with the Securities and Exchange  Commission  within
120 days after December 31, 1999.  Such  information is  incorporated  herein by
reference.


<PAGE>
                                     PART IV


ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

(a)  Documents filed as part of this report

          1.   List of Financial Statements.  The following financial statements
               of Neurocrine Biosciences,  Inc. and Report of Ernst & Young LLP,
               Independent  Auditors,  are  included in this  report:  Report of
               Ernst & Young  LLP,  Independent  Auditors  Consolidated  Balance
               Sheet as of December 31, 1999 and 1998 Consolidated  Statement of
               Operations for the years ended  December 31, 1999,  1998 and 1997
               Consolidated  Statement  of  Stockholders'  Equity  for the years
               ended December 31, 1999, 1998 and 1997 Consolidated  Statement of
               Cash Flows for the years ended  December 31, 1999,  1998 and 1997
               Notes to the Consolidated Financial Statements

          2.   List of all  Financial  Statement  schedules.  All  schedules are
               omitted   because  they  are  not   applicable  or  the  required
               information is shown in the Consolidated  Financial Statements or
               notes thereto.

          3.   List of Exhibits required by Item 601 of Regulation S-K. See part
               (c) below.

(b)  Reports on Form 8-K.  No reports on Form 8-K were filed  during the quarter
     ended December 31, 1999.

(c)  Exhibits. The following exhibits are filed as part of, or incorporated by
     reference into, this report:

- --------------------------------------------------------------------------------
Exhibit
Number          Description
- --------------------------------------------------------------------------------
2.1       Agreement  and  Plan of  Reorganization  dated  May 1,  1998,  between
          Northwest  NeuroLogic,   Inc.  NBI  Acquisition  Corporation  and  the
          Registrant (7)

2.2       Form of Warrant  pursuant to the Agreement and Plan of  Reorganization
          dated May 1, 1998. (7)

3.1       Restated Certificate of Incorporation (1)

3.2       Bylaws (1)

3.3       Certificate of Amendment of Bylaws (1)

4.1       Form of Common Stock Certificate (1)

4.2       Form of warrant issued to existing warrant holders (1)

4.3       Information  and  Registration  Rights  Agreement  dated September 15,
          1992, as amended to date (1)

4.4       Form of Series A warrant  issued in  connection  with the execution by
          the Registrant of the Unit Purchase Agreement (see below) (1)

4.5       New  Registration  Rights  Agreement  dated  March 29,  1996 among the
          Registrant and the investors signatory thereto (1)

4.6       Letter of Intent between Northwest NeuroLogic, Inc. and the Registrant
          dated February 27, 1998 (6)

4.7*      Registration  Rights  Agreement  dated May 28, 1998,  between  certain
          investors and the Registrant (7)

4.8       Amended and Restated Rights Agreement by and between the Registrant
          and American Stock Transfer & Trust Company, as Rights Agent, dated as
          of July 19, 1999. (9)

4.9       Stock Purchase  Agreement dated December 20 through 23, 1999,  between
          Neurocrine Biosciences,  Inc. and each of the Purchasers named therin.
          (11)

10.1      Purchase and Sale Agreement and Escrow Instructions between MS Vickers
          II, LLC and the Company dated February 13, 1997 (3)
<PAGE>

10.2      1992 Incentive Stock Plan, as amended (10)

10.3      1996 Employee Stock Purchase Plan (1)

10.4      1996 Director Stock Option Plan and form of stock option agreement (1)

10.5      Form of Director and Officer Indemnification Agreement (1)

10.6      Employment  Agreement dated March 1, 1997,  between the Registrant and
          Gary A. Lyons, as amended (4)

10.7      Employment  Agreement dated March 1, 1997,  between the Registrant and
          Errol B. De Souza, as amended (4)

10.8      Employment  Agreement dated March 1, 1997,  between the Registrant and
          Paul W. Hawran (4)

10.9      Employment  Agreement dated March 1, 1997,  between the Registrant and
          Stephen Marcus, MD (4)

10.10     Consulting  Agreement dated September 25, 1992, between the Registrant
          and Wylie A. Vale, Ph.D. (1)

10.11     Consulting Agreement effective January 1, 1992, between the Registrant
          and Lawrence J. Steinman, MD (1)

10.12     Lease  Agreement  dated  June 1,  1993,  between  the  Registrant  and
          Hartford Accident and Indemnity Company, as amended (1)

10.13     Exclusive  License  Agreement dated as of July 1, 1993, by and between
          the Beckman Research  Institute of the City of Hope and the Registrant
          covering the treatment of nervous system  degeneration and Alzheimer's
          disease (1)

10.14     Exclusive  License  Agreement dated as of July 1, 1993, by and between
          the Beckman Research  Institute of the City of Hope and the Registrant
          covering the use of Pregnenolone for the enhancement of memory (1)

10.15     License  Agreement  dated  May  20,  1992,  by and  between  The  Salk
          Institute for Biological Studies and the Registrant (1)

10.16     License  Agreement  dated  July  17,  1992,  by and  between  The Salk
          Institute for Biological Studies and the Registrant (1)

10.17     License  Agreement  dated  November 16, 1993,  by and between The Salk
          Institute for Biological Studies and the Registrant (1)

10.18     License  Agreement dated October 19, 1992, by and between the Board of
          Trustees of the Leland Stanford  Junior  University and the Registrant
          (1)

10.19     Agreement  dated  January 1, 1995, by and between the  Registrant  and
          Janssen Pharmaceutica, N.V. (1)

10.20     Letter Agreement dated January 19, 1996, by and between the Registrant
          and Ciba-Geigy Limited (1)

10.21*    Unit  Purchase   Agreement  dated  March  29,  1996,  by  and  between
          Neuroscience  Pharma,  Inc. the Registrant and the investors signatory
          thereto (1)

10.22*    Exchange  Agreement  dated March 29, 1996,  by and between  Neurocrine
          Biosciences (Canada), Inc., the Registrant and the investors signatory
          thereto (1)

10.23*    Research  and  Development  Agreement  dated  March 29,  1996,  by and
          between Neurocrine Biosciences (Canada), Inc. and Nueorscience Pharma,
          Inc. (1)

10.24*    Intellectual  Property and License  Grants  Agreement  dated March 29,
          1996,  by  and  between  the  Registrant  and  Neurocrine  Biosciences
          (Canada), Inc. (1)

10.25*    Development and  Commercialization  Agreement dated December 20, 1996,
          by and between Ciba-Geigy Ltd. And the Registrant (2)

10.26*    Letter  and  Purchase  Order  dated  June  7,  1996,  by  and  between
          Ciba-Geigy and the Registrant (2)

10.27     ThirdLease Amendment dated June 6, 1996, by and between Talcott Realty
          I Limited Partnership and the Registrant (2)

10.28*    Research and License  Agreement  dated  October 15, 1996,  between the
          Registrant and Eli Lilly and Company (2)

10.29*    Lease between Science Park Center LLC and the Registrant dated
          July 31, 1997. (5)

10.30*    Option  Agreement  between  Science Park Center LLC (Optionor) and the
          Registrant (Optionee) dated July 31, 1997. (5)

10.31*    Construction Loan Agreement Science Park Center LLC and the Registrant
          dated July 31, 1997.  (5)

10.32     Secured Promissory Note Science Park Center LLC and the Registrant
          dated July 31, 1997.(5)

<PAGE>

10.33*    Operating Agreement for Science Park Center LLC between Nexus
          Properties, Inc. and the Registrant dated July 31, 1997. (5)

10.34     Form of incentive stock option agreement and nonstatutory stock option
          agreement for use in connection with 1992 Incentive Stock Plan (1)

10.35*    Patent  License  Agreement  dated May 7, 1998,  between  the US Public
          Health Service and the Registrant (7)

10.36*    Patent License  Agreement dated April 28, 1998,  between and among Ira
          Pastan, David Fitzgerald and the Registrant (7)

10.37*    Sub-License  and  Development  Agreement  dated June 30, 1998,  by and
          between DOV Pharmaceutical, Inc. and the Registrant (7)

10.38*    Warrant  Agreement  dated June 30, 1998,  between DOV  Pharmaceutical,
          Inc. and the Registrant (7)

10.39*    Warrant  Agreement dated June 30, 1998,  between Jeff Margolis and the
          Registrant (7)

10.40*    Warrant  Agreement  dated June 30, 1998,  between Stephen Ross and the
          Registrant (7)

10.41*    Collaboration  and License  Agreement  dated  January 1, 1999,  by and
          between  American  Home  Products   Corporation   acting  through  its
          Wyeth-Ayerst Laboratories Division and the Registrant (8)

10.42*    Employment Agreement dated January 1, 1999, between the Registrant and
          Margaret Valeur-Jensen (8)

10.43*    Employment  Agreement  dated February 9, 1998,  between the Registrant
          and Bruce Campbell (8)

10.44     Amended 1992  Incentive  Stock Plan, as amended May 27, 1997,  May 27,
          1998 and May 21, 1999. (8)

10.45*    Agreement  by  and  among  Dupont  Pharmaceuticals   Company,  Janssen
          Pharmaceutica,  N.V. and Neurocrine Biosciences,  Inc. dated September
          28, 1999.(10)

10.46*    Amendment Number One to the Agreement between Neurocrine  Biosciences,
          Inc. and Janssen Pharmaceutica, N.V. dated September 24, 1999. (10)

21        Subsidiaries of the Company

23        Consent of Ernst & Young LLP, Independent Auditors

24        Power of Attorney (see page 35)

27        Financial Data Schedule

- ----------

          (1)       Incorporated  by  reference  to the  Company's  Registration
                    Statement on Form S-1 (Registration No. 333-03172)

          (2)       Incorporated  by reference to the  Company's  Report on Form
                    10-K for the fiscal year ended December 31, 1996

          (3)       Incorporated by reference to the Company's amended Quarterly
                    Report on Form 10-Q filed on August 15, 1997

          (4)       Incorporated by reference to the Company's  Quarterly Report
                    on Form 10-Q filed on August 14, 1997

          (5)       Incorporated by reference to the Company's  Quarterly Report
                    on Form 10-Q filed on November 14, 1997

          (6)       Incorporated  by reference to the  Company's  Report on Form
                    8-K filed on March 13, 1998.

          (7)       Incorporated by reference to the Company's  Quarterly Report
                    on Form 10-Q filed on November 16, 1998.

          (8)       Incorporated  by reference to the  Company's  Report on Form
                    10-K for the fiscal year ended December 31, 1998

          (9)       Incorporated by reference to the Company's  Quarterly Report
                    on Form 10-Q filed on August 11, 1999.

          (10)      Incorporated by reference to the Company's  Quarterly Report
                    on Form 10-Q filed on November 12, 1999.

          (11)      Incorporated  by reference to the  Company's  Report on Form
                    S-3 filed on January 20, 2000.

     *    Confidential  treatment  has been  granted  with  respect  to  certain
          portions of the exhibit.

(d)  Financial Statement Schedules See Item 14(a) (2) above.

<PAGE>



                                   SIGNATURES

     Pursuant  to the  requirements  of  Section  13 or 15(d) of the  Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

                                   NEUROCRINE BIOSCIENCES, INC.
                                   A Delaware Corporation

                                   By: /s/Gary A. Lyons
                                   --------------------
                                   Gary A. Lyons
                                   President and Chief Executive Officer

                                   Date:  March 30, 2000


<PAGE>


                                POWER OF ATTORNEY

     KNOW ALL  PERSONS  BY THESE  PRESENTS,  that each  person  whose  signature
appears below  constitutes  and appoints Gary A. Lyons and Paul Hawran,  jointly
and severally his  attorneys-in-fact,  each with the power of substitution,  for
him in any and all  capacities,  to sign any  amendment  to this  Report on Form
10-K,  and to file the  same,  with  exhibits  thereto  and other  documents  in
connection  therewith,  with the  Securities  and  Exchange  Commission,  hereby
ratifying  and  confirming  all  that  each  of said  attorneys-in-fact,  or his
substitute or substitutes, may or cause to be done by virtue hereof.

     Pursuant to the  requirements of the Securities  Exchange Act of 1934, this
report has been signed by the following  persons on behalf of the Registrant and
in the capacities and on the dates indicated.

Signature               Title                                         Date
- ---------               -----                                         ----

/s/ Gary A. Lyons       President, Chief Executive Officer        March 29, 2000
- --------------------    and Director (Principal Executive Officer)
Gary A. Lyons

/s/ Paul W. Hawran      Chief Financial Officer (Principal        March 29, 2000
- --------------------    Financial and Accounting Officer)
Paul W. Hawran

/s/ Joseph A. Mollica   Chairman of the Board of Directors        March 29, 2000
- ---------------------
Joseph A. Mollica

/s/ Richard F. Pops     Director                                  March 29, 2000
- ---------------------
Richard F. Pops

/s/ Stephen A. Sherwin   Director                                 March 29, 2000
- ----------------------
Stephen A. Sherwin

/s/ Wylie W. Vale        Director                                 March 29, 2000
- ----------------------
Wylie W. Vale




<PAGE>



                          NEUROCRINE BIOSCIENCES, INC.
                 INDEX TO THE CONSOLIDATED FINANCIAL STATEMENTS

                                                                         Page

Report of Ernst & Young LLP, Independent Auditors ......................  F-2

Consolidated Balance Sheet .............................................  F-3

Consolidated Statement of Operations ...................................  F-4

Consolidated Statement of Stockholders' Equity .........................  F-5

Consolidated Statement of Cash Flows ...................................  F-6

Notes to the Consolidated Financial Statements .........................  F-7


<PAGE>


                REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS



The Board of Directors and Stockholders
Neurocrine Biosciences, Inc.

We have  audited  the  accompanying  consolidated  balance  sheet of  Neurocrine
Biosciences, Inc. as of December 31, 1999 and 1998, and the related consolidated
statements of operations,  stockholders'  equity, and cash flows for each of the
three years in the period ended December 31, 1999.  These  financial  statements
are the  responsibility of the Company's  management.  Our  responsibility is to
express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the United States. Those standards require that we plan and perform the audit
to obtain reasonable  assurance about whether the financial  statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting  the amounts and  disclosures in the financial  statements.  An audit
also includes assessing the accounting principles used and significant estimates
made by  management,  as well as  evaluating  the  overall  financial  statement
presentation.  We believe  that our audits  provide a  reasonable  basis for our
opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all  material  respects,  the  consolidated  financial  position  of  Neurocrine
Biosciences, Inc. at December 31, 1999 and 1998, and the consolidated results of
its  operations  and its cash  flows for each of the three  years in the  period
ended  December 31, 1999, in conformity  with  accounting  principles  generally
accepted in the United States.


                                        /s/ ERNST & YOUNG LLP
                                        ---------------------
                                        ERNST & YOUNG LLP


San Diego, California
January 27, 2000





<PAGE>

                          NEUROCRINE BIOSCIENCES, INC.
                           Consolidated Balance Sheet
                                 (in thousands)
                                                                December 31,
                                                           --------------------
                                                             1999       1998
                                                           ---------  ---------
                                   ASSETS
Current assets:
    Cash and cash equivalents ............................ $  21,265  $  11,708
    Short-term investments, available-for-sale ...........    69,833     50,962
    Receivables under collaborative agreements ...........     1,458        863
    Receivables from related parties .....................      --          544
    Other current assets .................................     2,257      1,556
                                                           ---------  ---------
       Total current assets ..............................    94,813     65,633

    Property and equipment, net ..........................    11,181     10,899
    Licensed technology and patent applications costs, net       615        967
    Other assets .........................................     2,613      3,030
                                                           ---------  ---------
       Total assets ...................................... $ 109,222  $  80,529
                                                           =========  =========

                      LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
    Accounts payable ..................................... $   2,447  $   2,481
    Accrued liabilities ..................................     5,069      2,077
    Deferred revenues ....................................       155        169
    Current portion of long-term debt ....................       149        149
    Current portion of capital lease obligations .........       825        693
                                                           ---------  ---------
       Total current liabilities .........................     8,645      5,569

    Long-term debt, net of current portion ...............       312        461
    Capital lease obligations, net of current portion ....     1,827      1,786
    Deferred rent ........................................     1,005        257
    Other liabilities ....................................     1,079        498
                                                           ---------  ---------
       Total liabilities .................................    12,868      8,571

Commitments and contingencies (See Note 6) ...............      --         --

Stockholders' equity:
    Preferred Stock, $0.001 par value; 5,000,000 shares
       authorized; no shares issued and outstanding ......      --         --
    Common Stock, $0.001 par value; 100,000,000 shares
       authorized; issued and outstanding shares were
       21,608,011 in 1999 and 18,930,865 in 1998 .........        22         19
    Additional paid in capital ...........................   138,798     97,064
    Deferred compensation ................................      (411)      (187)
    Stockholder notes ....................................      (119)      (119)
    Accumulated other comprehensive (loss) income ........      (264)        31
    Accumulated deficit ..................................   (41,672)   (24,850)
                                                           ---------  ---------
       Total stockholders' equity ........................    96,354     71,958

                                                           ---------  ---------
       Total liabilities and stockholders' equity ........ $ 109,222  $  80,529
                                                           =========  =========

                             See accompanying notes.


<PAGE>



                          NEUROCRINE BIOSCIENCES, INC.
                      Consolidated Statement of Operations
                                 (in thousands)

                                                    Year-ended December 31,
                                               --------------------------------
                                                 1999       1998         1997
                                               --------   --------    --------
Revenues:
    Sponsored research and development ........ $ 12,171   $  8,751    $ 14,985
    Sponsored research and development
      from related party ......... ............      491      3,610        --
    Milestones and license fees ...............    3,000      2,500      10,250
    Grant income and other revenues ...........    1,129      1,176         909
                                                --------   --------    --------
       Total revenues .........................   16,791     16,037      26,144

Operating expenses:
    Research and development ..................   29,169     21,803      18,758
    General and administrative ................    7,476      6,594       5,664
    Write-off of acquired in-process research
      and development and licenses ............     --        4,910        --
                                                --------   --------    --------
       Total operating expenses ...............   36,645     33,307      24,422

Income (loss) from operations .................  (19,854)   (17,270)      1,722

Other income and expenses:
    Interest income ...........................    3,082      4,151       4,084
    Interest expense ..........................     (231)      (151)       (153)
    Equity in NPI losses and
     other adjustments, net ............... ...     (885)    (7,188)     (1,130)
    Other income ..............................    1,066        504         818
                                                --------   --------    --------
Income (loss) before taxes ....................  (16,822)   (19,954)      5,341
Income taxes ..................................     --            1         214
                                                --------   --------    --------
Net income (loss) ............................. $(16,822)  $(19,955)   $  5,127
                                                ========   ========    ========
Earnings (loss) per common share:
    Basic ..................................... $  (0.88)  $  (1.10)   $   0.30
    Diluted ................................... $  (0.88)  $  (1.10)   $   0.28

Shares used in the calculation of earnings
  (loss) per common share:
    Basic .....................................   19,072     18,141      16,930
    Diluted ...................................   19,072     18,141      18,184


                             See accompanying notes.

<PAGE>


                          NEUROCRINE BIOSCIENCES, INC.
                 Consolidated Statement of Stockholders' Equity
                                 (in thousands)


<TABLE>
<CAPTION>
                                                                                                    Notes
                                                       Common Stock    Additional                Receivable
                                                    -----------------   Paid In     Unearned        from
                                                    Shares     Amount   Capital   Compensation   Stockholders
                                                    ------     ------   -------   ------------   ------------
<S>                                                  <C>         <C>     <C>         <C>           <C>
     BALANCE AT DECEMBER 31, 1996 .................  16,777      $ 17    $ 83,234    $ (376)       $ (128)

Net income ........................................      --        --          --        --            --
Unrealized loss on short-term investments .........      --        --          --        --            --

Comprehensive income ..............................      --        --          --        --            --
Issuance of common stock for warrants .............     182        --          59        --            --
Issuance of common stock for option exercises .....     106        --         453        --            --
Issuance of common stock pursuant to the
  Employee Stock Purchase Plan ....................      22        --         175        --            --
Issuance of common stock in exchange for
  NPI Preferred Stock .............................     600         1       4,473        --            --
Payments received on stockholder notes ............      --        --          --        --             8
Deferred compensation and related amortization, net      --        --         192       (63)           --
                                                     -------    ------   --------    --------     --------
     BALANCE AT DECEMBER 31, 1997 .................  17,687        18      88,586       (439)        (120)

Net loss ..........................................      --        --          --         --           --
Unrealized gain on short-term investments .........      --        --          --         --           --

Comprehensive loss ................................      --        --          --         --           --
Issuance of common stock for warrants .............      60        --         142         --           --
Issuance of common stock for option exercises .....      81        --         286         --           --
Issuance of common stock pursuant to the
  Employee Stock Purchase Plan ....................      30        --         205         --           --
Issuance of common stock in exchange for
  NPI Preferred Stock .............................     679         1       3,854         --           --
Issuance of common stock for NNL Acquisition ......     392        --       4,032         --           --
Issuance of common stock for milestone achievement        2        --          17         --           --
Payments received on stockholder notes ............      --        --          --         --            1
Amortization of deferred compensation, net ........      --        --         (58)       252           --
                                                     -------    ------   --------    --------     --------
     BALANCE AT DECEMBER 31, 1998 .................  18,931        19      97,064       (187)        (119)

Net loss ..........................................      --        --          --         --           --
Unrealized gain on short-term investments .........      --        --          --         --           --

Comprehensive loss ................................      --        --          --         --           --
Issuance of common stock for option exercises .....     307        --       1,507         --           --
Issuance of common stock pursuant to the Employee
Stock  Purchase Plan ..............................      42        --         213         --           --
Issuance of common stock, net of offering costs ...   2,328         3      39,293         --           --
Amortization of deferred compensation, net ........      --        --         721       (224)          --
                                                     -------    ------   --------    --------     --------
     BALANCE AT DECEMBER 31, 1999 .................  21,608      $ 22    $138,798     $ (411)      $ (119)
                                                     =======    ======   ========    ========     ========

</TABLE>

                             See accompanying notes.

<PAGE>
                        NEUROCRINE BIOSCIENCES, INC.
                 Consolidated Statement of Stockholders' Equity
                           (continued) (in thousands)


<TABLE>
<CAPTION>
                                                    Accumulated
                                                       Other                         Total
                                                    Comprehensive   Accumulated   Stockholders'
                                                    Income (Loss)     Deficit         Equity
                                                    -------------     ---------      ----------
<S>                                                      <C>         <C>             <C>
     BALANCE AT DECEMBER 31, 1996 .................      $  42       $ (10,022)      $  72,767

Net income ........................................         --           5,127           5,127
Unrealized loss on short-term investments .........        (40)             --             (40)
                                                                                     ----------
Comprehensive income ..............................         --              --           5,087
Issuance of common stock for warrants .............         --              --              59
Issuance of common stock for option exercises .....         --              --             453
Issuance of common stock pursuant to the
  Employee Stock Purchase Plan ....................         --              --             175
Issuance of common stock in exchange for
  NPI Preferred Stock .............................         --              --           4,474
Payments received on stockholder notes ............         --              --               8
Deferred compensation and related amortization, net         --              --             129
                                                       ---------      ---------      ----------
     BALANCE AT DECEMBER 31, 1997 .................          2          (4,895)         83,152

Net loss ..........................................         --         (19,955)        (19,955)
Unrealized gain on short-term investments .........         29              --              29
                                                                                     ----------
Comprehensive loss ................................         --              --         (19,926)
Issuance of common stock for warrants .............         --              --             142
Issuance of common stock for option exercises .....         --              --             286
Issuance of common stock pursuant to the
  Employee Stock Purchase Plan ....................         --              --             205
Issuance of common stock in exchange for
  NPI Preferred Stock .............................         --              --           3,855
Issuance of common stock for NNL Acquisition ......         --              --           4,032
Issuance of common stock for milestone achievement          --              --              17
Payments received on stockholder notes ............         --              --               1
Amortization of deferred compensation, net ........         --              --             194
                                                       ---------      ---------      ----------
     BALANCE AT DECEMBER 31, 1998 .................         31         (24,850)          71,958

Net loss ..........................................         --         (16,822)         (16,822)
Unrealized gain on short-term investments .........       (295)             --             (295)
                                                                                       ---------
Comprehensive loss ................................         --              --          (17,117)
Issuance of common stock for option exercises .....         --              --            1,507
Issuance of common stock pursuant to the Employee
Stock  Purchase Plan ..............................         --              --              213
Issuance of common stock, net of offering costs ...         --              --           39,296
Amortization of deferred compensation, net ........         --              --              497
                                                       ---------      ---------      ----------
     BALANCE AT DECEMBER 31, 1999 .................     $ (264)      $ (41,672)       $  96,354
                                                       =========      =========      ==========

</TABLE>

                             See accompanying notes.


<PAGE>



                          NEUROCRINE BIOSCIENCES, INC.
                      Consolidated Statement of Cash Flows
                                 (in thousands)

<TABLE>
<CAPTION>

                                                                Twelve Months Ended December 31,
                                                             -----------------------------------
                                                                1999         1998         1997
                                                             ---------    ---------    ---------
<S>                                                          <C>          <C>          <C>
CASH FLOW FROM OPERATING ACTIVITIES
Net (loss) income ........................................   $ (16,822)   $ (19,955)   $   5,127
Adjustments to reconcile net income (loss) to net cash
  Provided by (used in) operating activities:
      Acquisition of NNL for Common Stock ................          --        4,200           --
      Equity in NPI losses and other adjustments .........         885        7,188        1,130
      Depreciation and amortization ......................       2,066        1,720        1,322
      Loss on abandonment of assets ......................         133          460           76
      Gain on sale of equipment ..........................          --          (15)          --
      Deferred revenues ..................................         (14)      (1,750)       1,000
      Deferred rent ......................................         748         (402)         384
      Compensation expenses recognized for stock options .         497          194          129
      Change in operating assets and liabilities,
        net of acquired business:
          Accounts receivable and other current assets ...        (752)      (2,898)         885
          Other non-current assets .......................        (357)         291       (1,274)
          Accounts payable and accrued liabilities .......       3,360          271        2,213
                                                             ---------    ---------    ---------
Net cash flows (used in) provided by operating activities      (10,256)     (10,696)      10,992

CASH FLOW FROM INVESTING ACTIVITIES
Purchases of short-term investments ......................     (87,728)     (41,618)    (113,080)
Sales/maturities of short-term investments ...............      68,562       50,006      112,315
Purchases of property and equipment, net .................      (2,061)      (3,683)      (6,440)
                                                             ---------    ---------    ---------
Net cash flows provided by (used in) investing activities      (21,227)       4,705       (7,205)

CASH FLOW FROM FINANCING ACTIVITIES
Issuance of Common Stock .................................      41,016          433          687
Proceeds received from long-term obligations .............         981        2,500          747
Principal payments on long-term obligations ..............        (957)      (1,006)        (783)
Payments received on notes receivable from stockholders ..          --            1            8
                                                             ---------    ---------    ---------
Net cash flows provided by financing activities ..........      41,040        1,928          659
                                                             ---------    ---------    ---------
Net increase (decrease) in cash and cash equivalents .....       9,557       (4,063)       4,446
Cash and cash equivalents at beginning of the period .....      11,708       15,771       11,325
                                                             ---------    ---------    ---------
Cash and cash equivalents at end of the period ...........   $  21,265    $  11,708    $  15,771
                                                             =========    =========    =========

SUPPLEMENTAL DISCLOSURES
Supplemental disclosures of cash flow information:
  Interest paid                                              $     231     $    150     $    153
  Taxes paid                                                         -            1          250

Schedule of noncash investing and financing activities:
  Conversion of note receivable to investment in NPI                 -     $  1,401            -
  Conversion of NPI Preferred Stock to investment in NPI             -        3,855        4,474

</TABLE>


                             See accompanying notes.

<PAGE>


                          NEUROCRINE BIOSCIENCES, INC.
                 NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
                                December 31, 1999


NOTE 1.  ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

     BUSINESS  ACTIVITIES.  Neurocrine  Biosciences,  Inc. (the  "Company")  was
incorporated  in  California  on  January  17,  1992 and was  reincorporated  in
Delaware in March 1996. The Company is a  neuroscience-based  company focused on
the  discovery  and  development  of novel  therapeutics  for  neuropsychiatric,
neuroinflammatory  and neurodegenerative  diseases and disorders.  The Company's
neuroscience,  endocrine and immunology  disciplines provide a unique biological
understanding of the molecular  interaction between central nervous,  immune and
endocrine systems for the development of therapeutic  interventions for anxiety,
depression,  insomnia,  stroke,  malignant  brain  tumors,  multiple  sclerosis,
obesity and diabetes.


     PRINCIPLES OF CONSOLIDATION.  The consolidated financial statements include
the accounts of  Neurocrine  Biosciences,  Inc. (the  "Company")  and its wholly
owned subsidiary,  Northwest NeuroLogic, Inc. ("NNL").  Significant intercompany
accounts and transactions have been eliminated in consolidation.

     USE OF ESTIMATES.  The  preparation  of financial  statements in conformity
with  generally  accepted  accounting  principles  requires  management  to make
estimates  and  assumptions  that affect the amounts  reported in the  financial
statements and the  accompanying  notes.  Actual results could differ from those
estimates.

     CASH EQUIVALENTS.  The Company considers all highly liquid investments with
a maturity of three months or less when purchased, to be cash equivalents.

    SHORT-TERM INVESTMENTS  AVAILABLE-FOR-SALE.  In accordance with Statement of
Financial  Accounting  Standards ("SFAS") No. 115,  "Accounting for Certain Debt
and   Equity   Securities,"    short-term    investments   are   classified   as
available-for-sale.  Available-for-sale  securities  are  carried at fair value,
with the  unrealized  gains and losses  reported in  comprehensive  income.  The
amortized cost of debt securities in this category is adjusted for  amortization
of premiums  and  accretion  of discounts  to  maturity.  Such  amortization  is
included in investment  income.  Realized gains and losses and declines in value
judged to be other-than-temporary,  if any, on available-for-sale securities are
included  in  investment  income.  The cost of  securities  sold is based on the
specific  identification method. Interest and dividends on securities classified
as available-for-sale are included in interest income.

     The Company  invests its excess cash  primarily  in  investment  grade debt
instruments,  marketable  debt  securities  of  U.S.  government  agencies,  and
high-grade commercial paper.  Management has established  guidelines relative to
diversification and maturities that maintain safety and liquidity.

     PROPERTY  AND  EQUIPMENT.  Property  and  equipment  are  carried  at cost.
Depreciation  and  amortization  are provided over the estimated useful lives of
the assets, ranging from three to ten years, using the straight-line method.

     LICENSED  TECHNOLOGY  AND PATENT  APPLICATION  COSTS.  Licensed  technology
consists of  worldwide  licenses to patents  related to the  Company's  platform
technology  which are  capitalized at cost and amortized over periods of 7 to 11
years.  These costs are regularly  reviewed to determine that they include costs
for patent  applications the Company is pursuing.  Costs related to applications
that are not being actively  pursued are evaluated under  Accounting  Principles
Board  Statement  17  "Intangible  Assets" and are  adjusted  to an  appropriate
amortization  period  which  generally  results in immediate  write-off.  Assets
written-off  during  1999  had  a  net  book  value  of  $133,000.   Accumulated
amortization   at  December  31,  1999  and  1998  was  $685,000  and  $679,000,
respectively.

     IMPAIRMENT  OF  LONG-LIVED   ASSETS.  In  accordance  with  SFAS  No.  121,
"Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to
be Disposed of", if indicators of  impairment  exist,  the Company  assesses the
recoverability  of the affected  long-lived  assets by  determining  whether the
carrying  value of such  assets can be  recovered  through  undiscounted  future
operating  cash flows.  If  impairment is  indicated,  the Company  measures the
amount of such  impairment by comparing  the carrying  value of the asset to the
present value of the expected  future cash flows  associated with the use of the
asset. While the Company's current and historical operating and cash flow losses
are indicators of impairment,  the Company  believes the future cash flows to be
received from the long-lived  assets will exceed the assets carrying value,  and
accordingly  the  Company  has not  recognized  any  impairment  losses  through
December 31, 1999.

<PAGE>

     INDUSTRY  SEGMENT AND  GEOGRAPHIC  INFORMATION.  The Company  operates in a
single industry  segment - the discovery and development of therapeutics for the
treatment of diseases and disorders of the central,  nervous and immune systems.
The Company has no foreign operations.

     RESEARCH AND DEVELOPMENT REVENUE AND EXPENSES. Revenues under collaborative
research  agreements  are  recognized  over the period  specified in the related
agreement.  Advance payments received in excess of amounts earned are classified
as deferred revenue and recognized as income in the period earned. Revenues from
government  grants are recognized  based on the performance  requirements of the
grant or as the grant expenditures are incurred.  Research and development costs
are  expensed  as  incurred.   Such  costs  include  proprietary   research  and
development  activities  and expenses  associated  with  collaborative  research
agreements.   Research  and  development   expenses  relating  to  collaborative
agreements and grants were  approximately  $7.2 million,  $12.0 million and $9.4
million during 1999, 1998 and 1997, respectively.

     STOCK-BASED  COMPENSATION.  As permitted by SFAS No. 123,  "Accounting  for
Stock-Based  Compensation",   the  Company  has  elected  to  follow  Accounting
Principles Board Opinion No. 25, "Accounting for Stock Issued to Employees" (APB
25)  and  related   Interpretations  in  accounting  for  stock-based   employee
compensation. Deferred compensation is recorded for employee options only in the
event that the fair  market  value of the stock on the date of the option  grant
exceeds  the  exercise  price  of the  options.  The  deferred  compensation  is
amortized over the vesting period of the options.

     Deferred charges for options granted to  non-employees  has been determined
in  accordance  with  SFAS  No.  123 and EITF  96-18  as the  fair  value of the
consideration  received  or the fair  value of the  equity  instruments  issued,
whichever is more reliably  measured.  Deferred  charges for options  granted to
non-employees are periodically remeasured as the underlying options vest and are
included in deferred compensation in the financial statements.

     EARNINGS PER SHARE.  Basic and diluted earnings per share are calculated in
accordance with FASB Statement No. 128,  "Earnings per Share".  All earnings per
share amounts for all periods have been presented,  and where appropriate,  were
restated to conform to the requirements of Statement No. 128.

    COMPREHENSIVE INCOME.  Comprehensive income is calculated in accordance with
FASB  Statement No. 130,  "Comprehensive  Income".  The  Statement  requires the
disclosure of all components of comprehensive  income,  including net income and
changes  in  equity  during a period  from  transactions  and other  events  and
circumstances   generated   from   non-owner   sources.   The  Company's   other
comprehensive income consisted of gains and losses on short-term investments and
is reported in the consolidated statement of stockholders' equity.

     RECLASSIFICATIONS.  Certain  reclassifications have been made to prior year
amounts to conform to the presentation for the year ended December 31, 1999.

     IMPACT OF RECENTLY  ISSUED  ACCOUNTING  STANDARDS.  In December  1999,  the
Securities and Exchange  Commission  issued Staff  Accounting  Bulletin No. 101,
"Revenue Recognition in Financial  Statements,"("SAB  101"). Among other things,
SAB 101 discusses the SEC staff's view on accounting for non-refundable up-front
fees  received  in  connection  with  collaboration  agreements.  The Company is
currently  evaluating  the  impact  of SAB 101 on the  accounting  for  up-front
license  fees  received.  Should  the  Company  determine  that a change  in its
accounting policy is necessary,  such a change will be made effective January 1,
2000 and would result in a charge to results of  operations  for the  cumulative
effect of the change. This amount, if recognized,  would be recorded as deferred
revenue and recognized as revenue in future periods.  Prior financial statements
would not be restated.

<PAGE>

    In  June  1998,  the  Financial   Accounting  Standards  Board  issued  SFAS
133,"Accounting for Derivative Instruments and Hedging Activities".  The Company
expects to adopt the new Statement  effective  January 1, 2001.  This  statement
requires the  recognition  of all  derivative  instruments  as either  assets or
liabilities in the statement of financial  position and the measurement of those
instruments  at fair  value.  The Company  does not expect the  adoption of this
statement to have a material  impact on its results of  operations  or financial
position.


NOTE 2.  SHORT-TERM INVESTMENTs

     The  following  is  a  summary  of  short-term  investments  classified  as
available-for-sale securities (in thousands):

                                  ---------  -----------  -----------  ---------
                                                Gross        Gross     Estimated
                                  Amortized   Unrealized   Unrealized    Fair
                                     Cost        Gains      Losses        Value
                                  ---------  -----------  -----------  ---------
DECEMBER 31, 1999
US Government securities .......   $ 1,997     $  --       $   (24)     $ 1,973
Corporate debt securities ......    68,100           7        (247)      67,860
                                   -------     -------     -------      -------
         Total securities ......   $70,097     $     7     $  (271)     $69,833
                                   =======     =======     =======      =======

DECEMBER 31, 1998
US Government securities .......   $ 6,000     $    17     $  --        $ 6,017
Certificates of deposit ........       260        --          --            260
Commercial paper ...............     5,420        --          --          5,420
Corporate debt securities ......    39,141          61         (87)      39,115
Other ..........................       110          40        --            150
                                   -------     -------     -------      -------
         Total securities ......   $50,931     $   118     $   (87)     $50,962
                                   =======     =======     =======      =======

     Gross  realized  gains and losses were not material for any of the reported
periods.  The  amortized  cost and  estimated  fair value of debt  securities by
contractual maturity at December 31, 1999, are shown below (in thousands).

                                                    Amortized   Estimated
                                                       Cost     Fair Value
                                                     -------     -------
Due in one year or less ..........................   $ 2,004     $ 2,000
Due after one year through four years ............    68,093      67,833
                                                     -------     -------
                                                     $70,097     $69,833
                                                     =======     =======

NOTE 3.  PROPERTY AND EQUIPMENT

     Property  and  equipment  at  December  31,  1999 and 1998,  consist of the
following (in thousands):
                                                   1999        1998
                                                 --------    --------
Land .........................................   $  5,299    $  5,299
Furniture and fixtures .......................      1,982       1,856
Equipment ....................................      9,046       7,356
Leasehold improvements .......................        875         562
                                                 --------    --------
                                                   17,202      15,073
Less accumulated depreciation and amortization     (6,021)     (4,174)
                                                 --------    --------
Net property and equipment ...................   $ 11,181    $ 10,899
                                                 ========    ========
<PAGE>

     Furniture  and equipment  under  capital  leases were $6.7 million and $5.8
million at December 31, 1999 and 1998, respectively. Accumulated depreciation of
furniture  and  equipment  under  capital  leases  totaled $4.0 million and $3.1
million at  December  31,  1999 and 1998,  respectively.  In 1999,  the  Company
entered into $981,000 of additional capital leases. Similar transactions in 1998
totaled $2.5 million.


NOTE 4.  ACCRUED LIABILITIES

     Accrued  liabilities at December 31, 1999 and 1998 consist of the following
(in thousands):
                                                   1999     1998
                                                  ------   ------
           Accrued employee benefits ...........  $1,331   $1,120
           Accrued professional fees ...........     270      438
           Accrued offering expenses ...........   1,222     --
           Accrued development costs ...........   1,828      333
           Taxes payable ........... ...........      27       15
           Other accrued liabilities ...........     391      171
                                                  ------   ------
                                                  $5,069   $2,077
                                                  ======   ======

NOTE 5.  LONG-TERM DEBT

     During 1997, the Company partially  financed the purchase of land under a 5
year note payable for approximately $747,000, which bears interest at a floating
rate of prime plus one quarter percent (8.75% and 8.00% at December 31, 1999 and
1998,  respectively).  The  note is  repayable  in  equal  monthly  installments
beginning February 1998.

     At December 31, 1999, the balance of the note was $ 461,000.  The repayment
schedule for the note is $149,000 for each year 2000 through 2002 and $13,000 in
the year 2003.


NOTE 6.  COMMITMENTS AND CONTINGENCIES

     CAPITAL LEASE OBLIGATIONS. The Company has financed certain equipment under
capital lease  obligations,  which expire on various dates through the year 2004
and bear interest at rates  between 7.6% and 10.1%.  The lease  commitments  are
repayable in monthly installments.

     OPERATING  LEASES.  In May 1997, the Company purchased two adjacent parcels
of land in San Diego for $5.0  million.  In August  1997,  the Company  sold one
parcel to Science Park Center LLC, a California  limited  liability company (the
"LLC"),  of which the Company owns a minority  interest,  in exchange for a note
receivable  in the amount of $3.5 million plus interest of 8.25%.  However,  for
accounting purposes,  this transaction does not qualify as a sale under SFAS No.
98 and therefore,  the entire amount of the note receivable is included in land.
The amount included in land at December 31, 1999 and 1998 was $3.8 million.

     During 1998, the LLC constructed an expanded  laboratory and office complex
which was leased by the  Company  under a 15 year  operating  lease,  commencing
September  1998. The Company has the option to purchase the facility at any time
during the term of the lease at a predetermined  price.  The lease contains a 4%
per year  escalation  in base rent fees,  effective  with each  anniversary.  In
November 1998, the Company  subleased a portion of this facility to an unrelated
third party through August 2000. The Company will hold the second parcel of land
until such time as additional facilities are required.

<PAGE>

     In November 1998,  the lease  obligation  relating to the Company's  former
operating facility was amended to reduce the amount of square footage leased and
to  shorten  the lease term to  conclude  in June 2000.  The  Company  currently
subleases  this space to an  unrelated  third party and is obligated to continue
this arrangement through June 2000.

     Repayment  schedules for the capital lease  obligations and operating lease
commitments at December 31, 1999 are as follows (in thousands):

                                                 Capital         Operating
Fiscal Year:                                     Leases            Leases
                                                 ---------        ---------
2000 ..........................................  $     996       $    2,731
2001 ..........................................      1,163            2,525
2002 ..........................................        573            2,626
2003 ..........................................        173            2,731
2004 ..........................................         66            2,841
Thereafter ....................................          -           29,880
                                                 ---------        ---------
  Total minimum payments ......................   $  2,971        $  43,334
                                                                  =========
Less:  amounts representing interest ..........       (319)
                                                 ----------
Future minimum payments .......................      2,652
Less:  current portion ........................       (825)
                                                 ----------
Future payments on capital lease obligations ..   $  1,827
                                                 ==========

     Rent expense was $2,730,000,  $2,379,000 and $2,139,000 for the years ended
December  31,  1999,  1998 and  1997,  respectively.  Sublease  income  was $1.2
million,  $837,000 and $917,000 for the years ended December 31, 1999,  1998 and
1997, respectively.

     Future  minimum  sublease  income  to  be  received  under   non-cancelable
subleases at December 31, 1999 will be $657,000 for the year ending December 31,
2000.

     LICENSING AND RESEARCH  AGREEMENTS.  The Company has entered into licensing
agreements with various universities and research organizations. Under the terms
of these  agreements,  the  Company has  received  licenses  to  technology,  or
technology  claimed, in certain patents or patent  applications.  The Company is
required to pay royalties on future sales of products  employing the  technology
or falling under claims of a patent,  and,  certain  agreements  require minimum
royalty payments.  Certain  agreements also require the Company to make payments
upon the achievement of specified milestones.


NOTE 7.  STOCKHOLDERS' EQUITY

     COMMON STOCK ISSUANCES. From inception through 1996, the Company has issued
Common Stock in various  private and public  offerings,  as well as to corporate
collaborators,  at prices  between  $5.00 and  $10.50  per  share  resulting  in
aggregate net proceeds of  approximately  $72.1  million.  In December 1999, the
Company sold 2.3 million shares of Common Stock in a private placement at $18.00
per share. The offering resulted in net proceeds of $39.3 million.

     OPTIONS.  The Company has authorized 5.6 million shares of its Common Stock
for issuance upon exercise of options or stock purchase rights granted under the
1992  Incentive  Stock Option Plan,  1996 Director  Option Plan and the 1997 NNL
Stock Option Plan (collectively  "the Plan").  These plans provide for the grant
of stock options and stock purchase rights to officers, directors, and employees
of, and consultants and advisors to, the Company. Options under these plans have
terms  of up to 10  years  from  the  date of  grant  and may be  designated  as
incentive stock options or nonstatutory stock options under the Plan.

<PAGE>

     A summary of the Company's stock option activity,  and related  information
for the years ended December 31 follows:

                             1999                 1998              1997
                   -------------------  -------------------  -------------------
                             Weighted             Weighted             Weighted
                    Options   Average    Options   Average    Options   Average
                      (in    Exercise      (in    Exercise      (in    Exercise
                   thousands)  Price    thousands)  Price    thousands)  Price
                   -------------------  -------------------  -------------------
Outstanding at
  January 1, ....    2,793    $ 6.02      2,653    $ 5.84      1,739    $ 4.48
Granted .........    1,142    $ 6.03        677    $ 6.26      1,072    $ 7.86
Exercised .......     (412)   $ 4.79        (81)   $ 3.64       (100)   $ 4.10
Canceled ........     (365)   $ 6.52       (456)   $ 5.76        (58)   $ 5.88
                     -----    ------      -----    ------      -----    ------
Outstanding at
  December 31, ..    3,158    $ 5.91      2,793    $ 6.02      2,653    $ 5.85
                     =====    ======      =====    ======      =====    ======


     A summary of options outstanding as of December 31, 1999 follows:

                      Options Outstanding              Options Exercisable
- -------------- -----------------------------------  ----------------------------
                                         Weighted                Weighted
 Range of      Outstanding  Remaining    Average   Exercisable    Average
 Exercise         as of    Contractual   Exercise     As of      Exercise
  Prices        12/31/99      Life        Price      12/31/99      Price
- --------------- ----------------------------------  ----------------------------
$0.02 to $2.50      478       4.3        $ 2.29       425          $ 2.42
$4.03 to $4.25      459       5.6        $ 4.24       406          $ 4.25
$4.66 to $5.25      501       8.7        $ 4.99       119          $ 5.01
$5.27 to $6.50      410       8.8        $ 5.79        97          $ 5.97
$6.56 to $7.37      509       7.7        $ 7.16       271          $ 7.25
$7.50 to $8.25      361       7.2        $ 7.95       219          $ 8.00
$8.31 to $20.50     440       7.4        $ 9.66       251          $ 9.04
                  -----       ---        ------     -----          ------
                  3,158       7.1        $ 5.91     1,788          $ 5.54

     The weighted  average fair values of the options  granted during 1999, 1998
and 1997 were $3.75, $5.59 and $5.01, respectively.

     Pro forma  information  regarding net income (loss) is required by SFAS No.
123, and has been  determined  as if the Company had  accounted for its employee
stock options under the fair value method of that Statement.  The fair value for
these  options was estimated at the date of grant using a  Black-Scholes  option
pricing model using the following  weighted-average  assumptions  for 1999, 1998
and 1997,  respectively:  risk-free  interest  rates of 6.4%,  5.5% and 5.8%;  a
dividend  yield of 0.0% (for all  years),  volatility  factors  of the  expected
market price of the  Company's  common stock of .74, .88 and .43; and a weighted
average expected life of the option of 5 years (for all years presented).

     For  purposes of pro forma  disclosures,  the  estimated  fair value of the
options granted is amortized to expense over the options'  vesting  period.  The
pro forma effect on net losses for 1999 and 1998 and net income in 1997,  is not
likely to be  representative of the effects on reported income or loss in future
years because these amounts  reflect less than full vesting for options  granted
during these periods.  The Company's pro forma  information  for the years ended
December 31, 1999,  1998 and 1997  follows (in  thousands,  except for per share
data):

<PAGE>
                                                  1999        1998       1997
                                                ---------   ---------  --------
Net income (loss) as reported                   $(16,822)   $(19,955)   $5,127
Earnings (loss) per share (diluted)             $  (0.88)   $  (1.10)   $ 0.28

Pro forma net income (loss)                     $(18,303)   $(20,758)   $4,364
Pro forma earnings (loss) per share (diluted)   $  (0.96)   $  (1.14)   $ 0.24


     EMPLOYEE STOCK  PURCHASE  PLAN. The Company has reserved  125,000 shares of
Common Stock for  issuance  under the 1996  Employee  Stock  Purchase  Plan (the
"Purchase  Plan").  The  Purchase  Plan permits  eligible  employees to purchase
Common Stock through payroll  deductions at a purchase price equal to 85% of the
lesser of the fair market  value per share of Common  Stock on the start date of
an  offering  period or on the date on which the shares are  purchased.  Through
December 31, 1999, 93,000 shares had been issued pursuant to the Purchase Plan.

     WARRANTS.  The Company has outstanding  warrants to purchase 384,000 shares
of  Common  Stock at an  exercise  price of $10.50  per  share.  These  warrants
generally  expire in 2007. At December 31, 1999, all  outstanding  warrants were
exercisable.

     The  following  shares of Common Stock are reserved for future  issuance at
December 31, 1999 (in thousands):

               Stock option plans                           3,653
               Employee stock purchase plan                    32
               Warrants                                       384
                                                            -----
               Total                                        4,069
                                                            =====

     Of the shares available for future issuance under the Plan, 3.2 million are
outstanding grants and 495,000 remain available for future grant.


NOTE 8.  ACQUIRED IN-PROCESS RESEARCH AND DEVELOPMENT AND LICENSES

     NORTHWEST  NEUROLOGIC,  INC. In May 1998, the Company  acquired the assets
and  liabilities  of Northwest  NeuroLogic,  Inc.  ("NNL"),  in exchange for the
Company's Common Stock and stock options valued at $4.2 million. The acquisition
was  accounted  for as a  purchase  and,  accordingly,  the  purchase  price was
allocated  to the  assets  acquired  and the  liabilities  assumed  based on the
estimated fair market values. Substantially all the purchase price was allocated
to  the  in-process  research  and  development.  The  value  allocated  to  the
technology  was  then  expensed   because  it  had  not  reached   technological
feasibility  and had no future  alternative  uses.  Since the  acquisition,  the
operations of NNL have been included in the Company's consolidated statements of
operations.

     The following are pro forma  unaudited  results of operations  for the year
ended December 31, 1998 (in  thousands,  except per share data) had the purchase
of NNL been consummated as of January 1, 1998. This pro forma information is not
necessarily  indicative of the actual  results that would have been achieved nor
is it necessarily indicative of future results.

              Revenues .............................   $16,325
              Net loss .............................   (20,013)
              Loss per share basic and diluted .....   $ (1.09)

     OTHER.  During  1998,  the  Company  purchased  licenses  for  technologies
relating to insomnia and brain cancer in the amount of $710,000.  These projects
are  in  the  early  stages  of  development,  have  not  reached  technological
feasibility and have no known alternative uses. Consequently, the costs of these
licenses were expensed.

<PAGE>

NOTE 9.  COLLABORATIVE RESEARCH AND DEVELOPMENT AGREEMENTS

     TAISHO.  In December 1999,  Neurocrine  signed an exclusive  agreement with
Taisho  Pharmaceutical  Co. LTD ("Taisho")  providing Taisho an option to obtain
European and Asian  commercialization  rights for  Neurocrine's  altered peptide
ligand (APL) for diabetes (NBI-6024).  Neurocrine would retain all rights in the
rest of the world, including North America. The resulting collaboration could be
valued at up to $45  million,  if a product is  commercialized,  consisting  of:
licensing  and option fees,  payments  for certain  development  and  regulatory
milestones,  and reimbursement of 50% of the worldwide  development expenses. In
addition,  Neurocrine  would  receive  royalties on product  sales in Europe and
Japan.

     WYETH-AYERST.  In March 1999,  the Company  entered into an agreement  with
Wyeth-Ayerst Laboratories, the pharmaceutical division of American Home Products
Corporation,  on the research,  development and  commercialization  of compounds
which modulate  excitatory amino acid transporters  (EAATs) for the treatment of
neurodegenerative  and  psychiatric  diseases.  EAATs are part of the  family of
neurotransmitter  transporters  and play a key role in regulating the actions of
neurotransmitters and brain function.

     The agreement,  valued at up to $81 million if a product is commercialized,
includes: sharing proprietary technologies,  funding for research,  payments for
milestones  reached,  plus  royalties on sales from products  resulting from the
collaboration.  Under the terms of the agreement,  Neurocrine expects to receive
three to five years of funding for research and development as well as worldwide
royalties on commercial  sales of products  that result from the  collaboration.
Wyeth-Ayerst will also provide  Neurocrine with access to chemical libraries for
screening within the  collaborative  field. As of December 31, 1999, the Company
has received  $3.0 million in sponsored  research  payments and $3.0 million for
the achievement of four milestones.

     ELI LILLY.  In October 1996, the Company entered into an agreement with Eli
Lilly and Company  under which the Company  expects to receive  $22.0 million in
research  payments of which $17.7  million have been received as of December 31,
1999. The Company is also entitled to milestone payments for certain development
and  regulatory  accomplishments.  The  Company  will have the option to receive
co-promotion  rights and share profits from commercial sales of select products,
which  result from the  collaboration  in the U.S. or receive  royalties on U.S.
product sales. The Company will receive  royalties on product sales for the rest
of the world.

         The  collaborative  research  portion of the agreement was completed as
scheduled in 1999. The Company will continue to receive  milestone  payments and
royalties upon the successful  continuation  of the  development  portion of the
agreement, if any.

     JANSSEN.  In  January  1995,  the  Company  entered  into  a  research  and
development  agreement  (the  "Janssen  Agreement")  with  Janssen,  under which
Janssen paid the Company $2.0 million in up-front  license fees and $9.7 million
in sponsored  research  payments during the three-year term of the collaborative
research  portion of the  agreement.  The research  portion of the agreement was
completed in 1997.

     Under the Janssen Agreement, the Company is entitled to receive up to $10.0
million in milestone  payments for the  indications  of anxiety,  depression and
substance  abuse,  and up to $9.0 million in additional  milestone  payments for
other  indications.  Milestone  payments of $3.5 million had been received as of
December 31, 1998. There were no additional  milestone  payments received during
1999.  The  Company  has  granted  Janssen  an  exclusive  worldwide  license to
manufacture  and market  products  developed  under the Janssen  Agreement.  The
Company is entitled to receive  royalties  on  worldwide  product  sales and has
certain  rights  to  co-promote  such  products  in North  America.  Janssen  is
responsible  for funding all  clinical  development  and  marketing  activities,
including reimbursement to Neurocrine for its promotional efforts, if any.

<PAGE>

     The  collaborative  research  portion of the  agreement  was  completed  as
scheduled  in  1997  with  the  selection  of  a  clinical   candidate  and  the
commencement of clinical trials in Europe.  The Company will continue to receive
milestone  payments  and  royalties  upon  the  successful  continuation  of the
development  portion of the  agreement.  Janssen has the right to terminate  the
Agreement upon six months notice.  However,  in the event of termination,  other
than  termination  by  Janssen  for cause or as a result of the  acquisition  of
Neurocrine,  all product and technology rights become the exclusive  property of
Neurocrine.

     In September  1999,  the Company  signed an amendment to its 1995 agreement
with Janssen Pharmaceutica,  N.V. ("Janssen").  The amendment provides for a new
sponsored  research  period  designed  to identify  new  corticotropin-releasing
factor ("CRF")  receptor  antagonists  which will be subject to the terms of the
original  agreement signed in 1995. The term of the amendment is from April 1999
through  February  2001.  Under the  agreement,  the Company  will  receive $5.0
million  in  sponsored  research  funding,  up  to  $3.5  million  in  milestone
achievements,  $500,000  for  research  already  conducted  under  this  certain
technology  and  reimbursement  of all outside and third party costs  associated
with the project. As of December 31, 1999, the Company has received $1.9 million
in sponsored research and the $500,000 payment for prior research.

     NOVARTIS.  In January  1996,  the Company  entered into an  agreement  with
Novartis under which Novartis paid the Company $5.0 million in up-front  license
fees and was obligated to provide  Neurocrine  with $7.0 million in research and
development  funding during the first two years of the agreement and up to $15.5
million in further research and development funding  thereafter.  As of December
31, 1999,  the Company has  received  $18.8  million in  sponsored  research and
development payments and $9.1 million of milestone payments.

     On July 7, 1999,  Novartis exercised its right to terminate the Development
and  Commercialization  Agreement,  effective  January  7,  2000.  As a  result,
Neurocrine  will  reacquire  the  worldwide  rights  to its  multiple  sclerosis
compound, MSP771.


NOTE 10.  RELATED PARTY TRANSACTIONS

     NEUROSCIENCE  PHARMA, INC. In March 1996, the Company along with a group of
Canadian   institutional   investors  (the  "Canadian  Investors")   established
Neuroscience  Pharma Inc.  ("NPI").  The Company's  contribution  was to license
certain  technology and Canadian marketing rights to NPI. The Canadian Investors
contributed  approximately  $9.5 million in cash in exchange  for the  Preferred
Stock of NPI,  which was  convertible  into the  Company's  Common  Stock at the
option of the Canadian Investors, and warrants exercisable for 383,875 shares of
the  Company's  Common  Stock at an  exercise  price of $10.50  per  share.  The
Canadian  Investors  are also eligible to receive  additional  warrants upon the
attainment of certain additional funding.

     During 1997 and 1998, the Investors converted their Preferred Shares to the
Company's  Common Stock. As a result,  the Company recorded an investment in NPI
equal to the market value of Common  Stock issued in exchange for the  Preferred
Shares  and has  recognized  its  proportionate  share of the NPI net  losses in
accordance  with the equity method of  accounting.  Equity in NPI losses totaled
$764,000, $3.4 million and $1.1 million in 1999, 1998 and 1997, respectively.

     The Preferred Shares were redeemable for cash at the Company's option.  The
redemption  feature of the Preferred Shares limits their value to the balance of
cash and cash equivalents maintained by NPI.  Consequently,  the Company reduced
the value of its NPI investment by $647,000  during 1999 and $3.8 million during
1998. The balance of the Company's  investment in NPI was $0 and $1.4 million at
December 31, 1999 and 1998, respectively.

     During 1996, the Company entered into a sponsored  research  agreement with
NPI.  The terms of the  agreement  called  for NPI to fund  additional  research
efforts on  technologies  licensed to NPI by the  Company.  Associated  with the
costs of research on those certain programs,  the Company recognized revenues of
$491,000 and $3.6 million during 1999 and 1998 respectively.

<PAGE>

     During  December  1999,  the  Company  sold  the its  investment  in NPI in
exchange for cash,  receivables  and  potential  royalties  on  worldwide  sales
resulting from certain of NPI's future products.  This  transaction,  as well as
those  discussed  above,  is  included  in  "Equity  in  NPI  losses  and  other
adjustments, net" reported on the Consolidated Statement of Operations.


NOTE 11.  EARNINGS PER SHARE

     The  following  data show the amounts used in computing  earnings per share
and the effect on income and the  weighted-average  number of shares of dilutive
potential common stock (in thousands except for earning per share data):

                                                Year Ended December 31,
                                            --------------------------------
                                               1999        1998       1997
                                            ---------    ---------  --------
Numerator:
 Net income (loss) ......................  $ (16,822)   $ (19,955)   $ 5,127
 Effect of dilutive securities ..........         --           --         --
                                            ---------    ---------   -------
 Numerator for earnings (loss) per share   $ (16,822)   $ (19,955)   $ 5,127
                                            =========    =========   =======
Denominator:
 Denominator for basic earnings
  (loss) per share ......................     19,072       18,141     16,930

 Effect of dilutive securities:
   Employee stock options ...............         **           **        909
   Convertible preferred stock ..........         **           **        204
   Warrants .............................         **           **        141
                                              ------      -------    -------
   Dilutive potential of common shares ..         **           **      1,254
                                              ------      -------    -------
   Denominator for diluted earnings
    (loss) per share . ..................     19,072       18,141     18,184
                                              ======       ======     ======


  Basic earnings (loss) per share .......    $ (0.88)     $ (1.10)   $  0.30
                                              =======      =======    =======
  Diluted earnings (loss) per share .....    $ (0.88)     $ (1.10)   $  0.28
                                              =======      =======    =======
- ----------
** Antidilutive


NOTE 12.  INCOME TAXES

     At December 31, 1999, the Company had federal and California income tax net
operating loss  carryforwards of  approximately  $20.3 million and $5.4 million,
respectively.  The federal and California tax loss  carryforwards  will begin to
expire in 2010 and 2003,  respectively,  unless previously utilized. The Company
also  has  federal  and  California   research  tax  credit   carryforwards   of
approximately $3.5 million and $1.3 million,  respectively,  which will begin to
expire in 2007 and 2012,  respectively,  unless previously utilized. The Company
has  federal  Alternative  Minimum  Tax credit  carryforwards  of  approximately
$257,000, which will carryforward indefinitely.

     Pursuant to Internal  Revenue Code Sections 382 and 383,  annual use of the
Company's net operating loss and credit  carryforwards may be limited because of
cumulative  changes in ownership of more than 50% which occurred during 1992 and
1993.  However,  the Company  does not believe such changes will have a material
impact upon the utilization of these carryforwards.

     Significant  components of the Company's deferred tax assets as of December
31, 1999 and 1998 are shown  below.  A valuation  allowance of  $13,504,000  and
$6,470,000 at December 31, 1999 and 1998, respectively,  have been recognized to
offset the net deferred tax assets as  realization  of such assets is uncertain.
Amounts are shown in thousands as of December 31, of the respective years:

<PAGE>

                                                  1999         1998
                                                --------     --------
    Deferred tax assets:
      Net operating loss carryforwards .......  $ 7,400      $ 3,744
      Tax credit carryforwards ...............    4,649        2,069
      Capitalized research and development ...      935          453
      Other, net                                    520          204
                                                --------     --------
    Total deferred tax assets ................   13,504        6,470
    Valuation allowance ......................  (13,504)      (6,470)
                                                --------     --------
    Net deferred tax assets ..................  $     -      $     -
                                                ========     ========

    The provision  for income taxes on earnings  subject to income taxes differs
from the statutory  federal rate at December 31, 1999, 1998 and 1997, due to the
following:
                                                1999         1998       1997
                                              --------    --------    --------
Federal income taxes at 34% ................. $(5,719)   $(6,785)     $1,816
State income tax, net of federal benefit ....       -          1          87
Tax effect on non-deductible expenses .......     932      4,213          21
Increase in valuation allowance and other ...   4,787      2,572      (1,837)
Alternative minimum taxes ...................       -          -         127
                                              --------    -------     --------
                                               $    -      $   1      $  214
                                              ========    =======     ========


                                                                      Exhibit 21

                  SUBSIDIARIES OF NEUROCRINE BIOSCIENCES, INC.



                                    State of
                                 Incorporation
Subsidiary                       or Formation                    Ownership
- ----------                       ------------                    ---------

Northwest NeuroLogic, Inc.           Oregon                         100%




                                                                      Exhibit 23

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS


We consent to the incorporation by reference in the Registration Statements Form
S-3 No. 333-95005 and Form S-8 Nos.  333-57875 and 333-87127 of our report dated
January 27,  2000,  with respect to the  consolidated  financial  statements  of
Neurocrine Biosciences,  Inc. included in its Annual Report on Form 10-K for the
year ended December 31, 1999.



                                              /s/ ERNST & YOUNG LLP
                                              ---------------------
                                              ERNST & YOUNG LLP

San Diego, California
March 27, 2000


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