Arena Pharmaceuticals to Host Research & Development Day on Decembe...( SAN DIEGO Dec. 8 /- Arena Pharmaceuti...),Health

SAN DIEGO, Dec. 8 /PRNewswire-FirstCall/ -- Arena Pharmaceuticals, Inc. (Nasdaq: ARNA) announced today that it will host a Research and Development Day on Monday, December 15, 2008, beginning at approximately 12:00 p.m. Eastern Time (9:00 a.m. Pacific Time). Speakers, including Jack Lief, President and Chief Executive Officer, Dominic P. Behan, Ph.D., Senior Vice President and Chief Scientific Officer, and William R. Shanahan, M.D., Vice President and Chief Medical Officer, are scheduled to provide an overview of the company, including its clinical development and discovery programs.

A live audio webcast of the presentation will be available under the investor relations section of Arena's website at http://www.arenapharm.com. A replay of the presentation will be available for at least 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 in four major therapeutic areas: cardiovascular, central nervous system, inflammatory and metabolic diseases. Arena's most advanced drug candidate, lorcaserin, is being investigated in a Phase 3 clinical trial program for the treatment of obesity. Arena's broad pipeline of novel compounds target G protein-coupled receptors, an important class of validated drug targets, and includes compounds being evaluated independently and with partners, including Merck & Co., Inc. and Ortho-McNeil Pharmaceutical, Inc.

Arena Pharmaceuticals(R) and Arena(R) are registered service marks of the company. "APD" is an abbreviation for Arena Pharmaceut
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