September 13, 2005 General News

ACADIA Pharmaceuticals Announces Election of Michael T. Borer to Board of Directors

SAN DIEGO, Sept 13, 2005 /PRNewswire-FirstCall via COMTEX News Network/ — ACADIA Pharmaceuticals Inc. (Nasdaq: ACAD), a biopharmaceutical company utilizing innovative technology to fuel drug discovery and clinical development of novel treatments for central nervous system disorders, today announced the election of Michael T. Borer to its board of directors. The board of directors also appointed Mr. Borer to its audit committee. Mr. Borer will serve as a Class I director. The terms of the Class I directors expire at the annual meeting of stockholders in 2008.

“Mike Borer will be an important addition to our board,” said Uli Hacksell, Ph.D., Chief Executive Officer of ACADIA. “We will benefit from Mike’s specialty pharmaceutical experience in the CNS area and his strong financial expertise, as we advance our product candidates into late-stage clinical development and plan for future commercial operations.”

Mr. Borer succeeds Martien van Osch, who resigned from ACADIA’s board of directors. Dr. Hacksell said, “The entire board joins me in thanking Martien for his work and valuable contributions to ACADIA during an important phase of our development.”

Mr. Borer served as Chief Executive Officer and President of Xcel Pharmaceuticals, Inc., a specialty pharmaceutical company focused on prescription products that treat disorders of the central nervous system, until the sale of the company to Valeant Pharmaceuticals International in early 2005. Prior to founding Xcel in early 2001, Mr. Borer served as Senior Vice President and Chief Financial Officer of Dura Pharmaceuticals, Inc. and held other management positions there from 1994 through 2000. Prior to Dura, Mr. Borer spent 12 years in public accounting with Deloitte & Touche in its audit services group. He holds a bachelor’s degree in accounting from San Diego State University.

About ACADIA Pharmaceuticals

ACADIA Pharmaceuticals is a biopharmaceutical company utilizing innovative technology to fuel drug discovery and clinical development of novel treatments for CNS disorders. ACADIA currently has four drug programs in clinical development as well as a portfolio of preclinical and discovery assets directed at large unmet medical needs, including schizophrenia, Parkinson’s disease, neuropathic pain, and glaucoma. Using its proprietary drug discovery platform, ACADIA has discovered all of the drug candidates in its product pipeline. ACADIA’s corporate headquarters is located in San Diego, California and it maintains research and development operations in both San Diego and Scandinavia.

Forward-Looking Statements

Statements in this press release that are not strictly historical in nature are forward-looking statements. These statements include but are not limited to statements related to the progress and timing of ACADIA’s drug discovery and development programs or future commercial operations. These statements are only predictions based on current information and expectations and involve a number of risks and uncertainties. Actual events or results may differ materially from those projected in any of such statements due to various factors, including the risks and uncertainties inherent in drug discovery, development and commercialization. For a discussion of these and other factors, please refer to ACADIA’s annual report on Form 10-K for the year ended December 31, 2004 filed with the United States Securities and Exchange Commission as well as other subsequent filings with the Securities and Exchange Commission. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. This caution is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. All forward-looking statements are qualified in their entirety by this cautionary statement and ACADIA undertakes no obligation to revise or update this press release to reflect events or circumstances after the date hereof.

ACADIA Pharmaceuticals Inc.
Lisa Barthelemy, Director, Investor Relations
Thomas H. Aasen, Vice President and Chief Financial Officer
(858) 558-2871

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