Arena Pharmaceuticals to Present at the Piper Jaffray 22nd Annual Health Care Conference

SAN DIEGO, Nov. 24, 2010 /PRNewswire/ -- Arena Pharmaceuticals, Inc. (Nasdaq: ARNA) announced today that the company is scheduled to present at the Piper Jaffray 22nd Annual Health Care Conference on December 1, 2010, at 8:00 a.m. Eastern Time (5:00 a.m. Pacific Time) at the New York Palace Hotel in New York City. Jack Lief, Arena's President and Chief Executive Officer, is scheduled to provide a corporate overview.

A live audio webcast of the presentation will be available under the investor relations section of Arena's website at www.arenapharm.com. A replay of the presentation will be available for 30 days following the event. Please connect to Arena's website several minutes prior to the start of the webcast to ensure adequate time for any software download that may be necessary.

About Arena Pharmaceuticals

Arena is a clinical-stage biopharmaceutical company focused on discovering, developing and commercializing oral drugs that target G protein-coupled receptors, an important class of validated drug targets, in four major therapeutic areas: cardiovascular, central nervous system, inflammatory and metabolic diseases. Arena's most advanced drug candidate, lorcaserin, is intended for weight management. Arena's wholly owned subsidiary, Arena Pharmaceuticals GmbH, has granted Eisai Inc. exclusive rights to market and distribute lorcaserin in the United States, following FDA approval of the New Drug Application for lorcaserin.

Arena Pharmaceuticals(R) and Arena(R) are registered service marks of the company.

Forward-Looking Statements

Certain statements in this press release are forward-looking statements that involve a number of risks and uncertainties. Such forward-looking statements include statements about the potential therapeutic indication and use, FDA approval and commercialization of lorcaserin; the Eisai collaboration and potential activities thereunder; and Arena's focus, goals, strategy, research and development programs, and ability to develop compounds and commercialize drugs. For such statements, Arena claims the protection of the Private Securities Litigation Reform Act of 1995. Actual events or results may differ materially from Arena's expectations. Factors that could cause actual results to differ materially from the forward-looking statements include, but are not limited to, the following: the risk that regulatory authorities may not find data and other information related to Arena's clinical trials and other studies meet safety or efficacy requirements or are otherwise sufficient for regulatory approval; the timing of regulatory review and approval is uncertain; Arena's response to the complete response letter for the lorcaserin NDA may not be submitted in a timely manner or the information provided in such response may not satisfy the FDA; the FDA may request additional information prior to approval of the lorcaserin NDA; unexpected new data; risks related to commercializing new products; Arena's ability to obtain and defend its patents; the timing, success and cost of Arena's research and development programs; results of clinical trials and other studies are subject to different interpretations and may not be predictive of future results; clinical trials and other studies may not proceed at the time or in the manner Arena or others expect or at all; Arena's ability to obtain adequate funds; risks related to relying on collaborative agreements; the timing and receipt of payments and fees, if any, from Arena's collaborators; and satisfactory resolution of pending and any future litigation or other disagreements with others. Additional factors that could cause actual results to differ materially from those stated or implied by Arena's forward-looking statements are disclosed in Arena's filings with the Securities and Exchange Commission. These forward-looking statements represent Arena's judgment as of the time of this release. Arena disclaims any intent or obligation to update these forward-looking statements, other than as may be required under applicable law.

Contact: Arena Pharmaceuticals, Inc.

Media Contact: Russo Partners



Jack Lief

David Schull, President

President and CEO

[email protected]


858.717.2310

Cindy McGee


Manager, IR and Corporate Communications

Anthony J. Russo, Ph.D., CEO

858.453.7200, ext. 1479

[email protected]


212.845.4251



www.arenapharm.com

SOURCE Arena Pharmaceuticals, Inc.

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