SIRT Sierra Natl BK Tehachapi Calif (MM)

Sirtris Pharmaceuticals, Inc. (NASDAQ: SIRT), a biopharmaceutical company focused on discovering and developing small molecule drugs to treat diseases of aging, announced today announced that it will report financial results for the second quarter of 2007 on Monday, August 13, 2007, after the U.S. financial markets close. Management will provide an update on the Company and discuss second quarter results via conference call on Monday, August 13, 2007, at 4:30 p.m. EDT. To access the call, please dial 800-289-0572 (domestic) or 913-981-5543 (international) five minutes prior to the start time and provide the passcode 2478956. A replay of the call will be available from 6:00 p.m. EDT on August 13, 2007 until August 24, 2007. To access the replay, please dial 888-203-1112 (domestic) or 719-457-0820 (international), and provide the passcode 2478956. A live audio webcast of the call also will be available on the "Investors" section of the Company's website, www.sirtrispharma.com. An archived webcast will be available on the Sirtris website approximately one hour after the call and will be archived for 14 days. About Sirtris Pharmaceuticals Sirtris Pharmaceuticals is a biopharmaceutical company focused on discovering and developing proprietary, orally available, small molecule drugs with the potential to treat diseases associated with aging, including metabolic diseases such as Type 2 Diabetes. Our drug candidates are designed to mimic certain beneficial health effects of calorie restriction, without requiring a change in eating habits, by activation of sirtuins, a recently discovered class of enzymes that control the aging process. The company's headquarters are in Cambridge, Massachusetts. This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 concerning Sirtris Pharmaceuticals. These forward-looking statements about future expectations, plans and prospects of Sirtris Pharmaceuticals involve significant risks, uncertainties and assumptions, including risks related to the lack of results that would provide a basis for predicting whether any of the Company�s product candidates will be safe or effective, or receive regulatory approval, the possibility that results of pre-clinical studies are not necessarily predictive of clinical trial results, the Company's potential inability to initiate and complete pre-clinical studies and clinical trials for its product candidates, the fact that none of the Company's product candidates has received regulatory approvals, the potential inability of the�Company to gain market acceptance of the Company's product candidates, and those other risks factors�that can be found in the�Company's filings with the Securities and Exchange Commission. Actual results may differ materially from those Sirtris Pharmaceuticals contemplated by these forward-looking statements. Sirtris Pharmaceuticals does not undertake to update any of these forward-looking statements to reflect a change in its views or events or circumstances that occur after the date of this release.