Press Release

Neurocrine Biosciences Reports Second Quarter 2008 Results

SAN DIEGO, July 30 /PRNewswire-FirstCall/ -- Neurocrine Biosciences, Inc. (Nasdaq: NBIX) today announced its financial results for the quarter ended June 30, 2008. For the second quarter of 2008, the Company reported a net loss of $21.0 million, or $(0.55) per share compared with a net loss of $26.4 million, or $(0.69) per share, for the same period in 2007. For the six months, the Company reported a net loss of $42.0 million, or $(1.10) per share, as compared to $52.1 million, or $(1.37) per share, for the same period last year.

Revenues for the second quarter of 2008 were $0.7 million compared with $48,000 for the same period last year. Revenues for the six months ended June 30, 2008 were $2.5 million, compared with $0.2 million for the same period in 2007. The increase in revenues is primarily due to revenues recognized in 2008 under collaboration agreements with GlaxoSmithKline (GSK) and Dainippon Sumitomo Pharma Co., Ltd. (DSP).

Research and development expenses decreased to $16.2 million during the second quarter of 2008 compared with $18.8 million for the same period in 2007. For the six months ended June 30, 2008, research and development expenses were $30.4 million, compared to $37.9 million for the same period last year. The decrease in research and development expenses is primarily due to cost savings related to our restructuring in the fourth quarter of 2007.

General and administrative expenses were $4.7 million for the second quarter of 2008 and $8.8 million during the same period last year. For the six months ended June 30, 2008, general and administrative expenses were $13.0 million, compared to $17.1 million for the first half of 2007. The reduction in general and administrative expenses is primarily due to cost savings related to recent restructurings.

The Company's balance sheet on June 30, 2008 reflected total assets of $225.7 million, including cash and investments of $133.5 million compared with balances at December 31, 2007 of $276.7 million and $179.4 million, respectively. The Company expects to end 2008 with in excess of $100 million in cash and investments.

"We have made significant progress during the first half of 2008, moving our GnRH program forward in a large and comprehensive Phase II program, and advancing urocortin 2 through its final preclinical studies to allow for long-term Phase II clinical studies. In addition, we are moving a number of our research programs forward to meet our goal of advancing a novel compound into the clinic each year. All of this is taking place while carefully managing our cash burn," said Kevin Gorman, Chief Executive Officer and President of Neurocrine Biosciences. "We are fortunate to have two Phase II programs that have generated substantial partnership interest and to have an outstanding partner in GSK who is dedicated to our CRF collaboration with three compounds in clinical development."

R & D Pipeline Update

Neurocrine's clinical development group and corporate partners have five programs in clinical development and will report on R & D progress throughout 2008. Neurocrine scientists continue to supply Neurocrine's pipeline to meet the Company-wide goal of bringing one new compound into development each year.

GnRH Antagonists for Endometriosis

Elagolix in Three Phase II Clinical Trials for Endometriosis

Below is a summary of the current ongoing randomized placebo-controlled Phase II trials for elagolix:

     Trial     Study Design           Endpoints        n     Status    Results

     0603   Six-month treatment    1. Impact of       252   Treatment   Q3 08
            period with elagolix   elagolix on bone         phase
            and DMPA (positive     mineral density          complete
            control) plus          using DXA scan
            additional long-term   2. Dysmenorrhea
            safety assessments     and pelvic pain
            post treatment

     0702   Placebo-controlled     Dysmenorrhea       150   Screening   1H 09
            trial with 2 doses of  and pelvic pain          complete
            optimized formulation  assessed with
            tablet                 modified endpoints

     0703   Placebo-controlled     Dysmenorrhea       180   Initiated   1H 09
            trial with 2 doses of  and pelvic pain
            elagolix and           assessed with
            leuprolide depot       modified endpoints

The Company completed the 6-month treatment phase of a Phase IIb study in patients with endometriosis. This multi-center, randomized, double-blind study included three treatment groups, with two doses of elagolix, 150 mg once a day and 75 mg twice daily, and a positive control, Depo-Provera(R). This study is designed primarily to assess the impact of elagolix on bone mineral density as measured by DXA scan at the conclusion of dosing and at 6-months and 12-months post-treatment versus baseline. In addition, the study will confirm the effect of elagolix on endometriosis symptoms. Topline results from the 6-month treatment period are expected in the third quarter of 2008. The study will continue after the treatment period for DXA scans and safety assessments. The 6-month results, together with data from the other Phase II studies, will be the basis for securing agreement on a registration plan with the FDA.

The Company is also currently conducting two additional randomized placebo-controlled Phase II clinical trials. The clinical endpoints for both of these trials are a reduction in pelvic pain associated with endometriosis, utilizing a scale proposed by the FDA. The first Phase II trial includes our selected commercial formulation tablet in two doses, (150 mg and 250 mg); this trial is actively enrolling approximately 150 patients and screening was complete as of the end of July 2008. The Company expects topline results from the first three months of treatment in early 2009. The second trial is a four arm comparator trial of two doses of elagolix, placebo or leuprolide depot. This trial is being conducted in Central and Eastern Europe. Topline data from this 3-month double-blind trial of approximately 180 patients should be available in the first half of 2009.

Neurocrine is also investigating the potential of certain GnRH antagonists in treating other hormone-dependent diseases in Men's and Women's Health.

Corticotropin Releasing Factor (CRF1) Receptor Antagonists for Anxiety/Depression and IBS

The CRF collaboration between Neurocrine and GSK has identified multiple unique high affinity and selective antagonists for the CRF1 receptor that are currently in clinical development for mood disorders and irritable bowel syndrome (IBS). There are currently three distinct CRF compounds in clinical development that have arisen out of the GSK collaboration. The compound (876008) is in a Phase II "proof of concept" trial to evaluate its safety and efficacy in patients with IBS. Approximately 130 patients meeting established diagnostic criteria for IBS have been entered into this cross-over design trial. The trial contains standard assessments of safety, tolerability and pharmacokinetics. The clinical endpoints reflect change in symptom frequency and severity and the data should be available in the second half of 2008.

GSK will soon be advancing a novel lead CRF1 receptor antagonist compound, 561679, into a Phase II trial in patients with major depressive disorder.

In addition to the two compounds listed above, GSK has also successfully completed a Phase I single dose-escalating clinical trial with a third CRF1 compound, 586529, for the treatment of anxiety and depression.

Urocortin 2 for Congestive Heart Failure (CHF) Continues Preclinical Evaluation

Initiation of longer term (up to 72 hours in duration) Phase II clinical trials of urocortin 2 are awaiting additional preclinical data. The Company has identified five preclinical studies necessary to support the longer period of infusion in the clinical program. Two of these five preclinical studies were successfully completed in June/July 2008. The two completed studies were non-GLP toxicology and safety assessment studies over 14 days of continuous infusion in distinct species models. The results of these studies show that urocortin 2 was well tolerated. Neurocrine anticipates topline data from the balance of the preclinical studies in late 2008.

Indiplon Update

The Company met with the FDA in July for an end of review meeting related to the December 12, 2007 approvable letter for indiplon capsules. The FDA meeting focused on the three additional requirements outlined in the December 12, 2007 approvable letter. At present, the Company is awaiting the final minutes of this meeting to determine the next course of action related to indiplon capsules.

Conference Call and Webcast Today at 5:00 p.m. Eastern Daylight Time

Neurocrine will hold a live conference call and webcast today at 5:00 p.m. Eastern Daylight Time (2:00 p.m. Pacific Daylight Time). Participants can access the live conference call by dialing 1-800-862-9098 (US) or 785-424-1051 (International) using the conference passcode 7NBIX2. The call can also be accessed via the webcast through the Company's website at

If you are unable to attend the Webcast and would like further information on this announcement please contact the Investor Relations Department at Neurocrine Biosciences at (858) 617-7600. A replay of the Conference Call will be available approximately one hour after the conclusion of the call by dialing 1-800-283-4641 (US) or 402-220-0851 (International) using the passcode 7NBIX2. The call will be archived for two weeks.

Neurocrine Biosciences, Inc. is a biopharmaceutical company focused on neurological and endocrine diseases and disorders. Our product candidates address some of the largest pharmaceutical markets in the world including endometriosis, irritable bowel syndrome (IBS), anxiety, depression, pain, diabetes, benign prostatic hyperplasia (BPH) and other neurological and endocrine related diseases and disorders. Indiplon was licensed from DOV Pharmaceutical, Inc. in 1998. Neurocrine Biosciences, Inc. news releases are available through the Company's website via the internet at

In addition to historical facts, this press release may contain forward- looking statements that involve a number of risks and uncertainties. Among the factors that could cause actual results to differ materially from those indicated in the forward-looking statements are risks and uncertainties associated with Neurocrine's business and finances in general, as well as risks and uncertainties associated with the Company's R & D pipeline and Company overall. Specifically, the risks and uncertainties the Company faces with respect to the Company's clinical programs include, but are not limited to, risk that the Company's elagolix Phase II clinical trials will fail to demonstrate that elagolix is safe and effective; risk that preclinical data will indicate that urocortin 2 is not suitable for further clinical studies; risk that the CRF1 receptor antagonist candidate's Phase II proof of concept clinical studies will not support further clinical studies; and overall risk that the Company's clinical candidates will not proceed to later stage clinical trials. Risks associated with the Company's indiplon program include, but are not limited to risk that indiplon approval and subsequent commercialization may be indefinitely delayed or never accomplished. With respect to its pipeline overall, the Company faces risk that it will be unable to raise additional funding required to complete development of all of its product candidates; risk relating to the Company's dependence on contract manufacturers for clinical drug supply; risks associated with the Company's dependence on corporate collaborators for commercial manufacturing and marketing and sales activities; uncertainties relating to patent protection and intellectual property rights of third parties; risks and uncertainties relating to competitive products and technological changes that may limit demand for the Company's products; and the other risks described in the Company's report on Form 10-K for the year ended December 31, 2007 and report on Form 10Q for the quarter ended March 31, 2008. Neurocrine undertakes no obligation to update the statements contained in this press release after the date hereof.

                         NEUROCRINE BIOSCIENCES, INC.
               Condensed Consolidated Statements of Operations
                (in thousands, except for loss per share data)

                                    Three Months Ended       Six Months Ended
                                          June 30,               June 30,
                                      2008        2007       2008        2007
                                         (unaudited)           (unaudited)
      Sponsored research and
       development                      $4         $21        $16        $107
      License fees and milestones      730           -      2,460           -
      Grant Revenue                      -          27          9          45
        Total revenues                 734          48      2,485         152

    Operating expenses:
      Research and development      16,186      18,789     30,413      37,850
      General and administrative     4,665       8,807     12,951      17,124
        Total operating expenses    20,851      27,596     43,364      54,974

    Loss from operations           (20,117)    (27,548)   (40,879)    (54,822)

    Other income and (expenses):
      Interest income and other
       income                        1,060       2,032      2,666       4,456
      Interest expense              (1,914)       (848)    (3,835)     (1,718)
        Total other income
         (expense)                    (854)      1,184     (1,169)      2,738

    Net loss                      $(20,971)   $(26,364)  $(42,048)   $(52,084)
    Net loss per common share:
      Basic and diluted             $(0.55)     $(0.69)    $(1.10)     $(1.37)

    Shares used in the calculation
     of net loss per common share:
      Basic and diluted             38,421      37,969     38,376      37,938

                         NEUROCRINE BIOSCIENCES, INC.
                    Condensed Consolidated Balance Sheets
                                (in thousands)

                                                        June 30,  December 31,
                                                          2008         2007
    Cash, cash equivalents and marketable securities     $111,901    $179,385
    Other current assets                                    1,728       3,563
      Total current assets                                113,629     182,948

    Property and equipment, net                            79,434      82,598
    Long-term investments                                  21,593           -
    Restricted cash                                         6,568       6,399
    Other non-current assets                                4,446       4,709
      Total assets                                       $225,670    $276,654

    Current liabilities                                   $19,494     $29,907
    Long-term liabilities                                 126,335     128,050
    Stockholders' equity                                   79,841     118,697
      Total liabilities and stockholders' equity         $225,670    $276,654

SOURCE  Neurocrine Biosciences, Inc.

CONTACT: Claudia Woodworth of Neurocrine Biosciences, +1-858-617-7600

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