Clinical Data, Inc. to Host Investor Day and Webcast October 8, 2009

Clinical Data, Inc. (NASDAQ: CLDA), today announced that it will host an Investor Day on Thursday, October 8, 2009 beginning at 8:30 a.m. EDT in New York City. The program, “Focus on Vilazodone: A Potential New Treatment for Depression,” will feature a series of presentations and panel discussion by leading experts in the treatment of depression, antidepressants and related sexual dysfunction.

Investment professionals interested in attending Clinical Data’s investor event should contact Amanda Brown at abrown@clda.com or (617) 527-9933 x3345.

The presentation will be available via webcast and telephonic archive for 30 days beginning two hours after the completion of the live event.

About Clinical Data, Inc.

Clinical Data develops first-in-class and best-in-category therapeutics. The Company is advancing its late-stage drug candidates for central nervous system disorders and cardiovascular diseases, to be followed by promising drug candidates in major therapeutic areas including oncology and inflammatory diseases. Clinical Data plans to differentiate its therapeutics by combining its drug development and biomarker expertise to develop products with enhanced efficacy and tolerability, improving patient health and reducing costs. To learn more, please visit the Company's website at www.clda.com.