Ascenta Therapeutics Announces Presentation of Promising Results From Clinical Trials of AT-101 in Prostate, Brain, and Lung Cancers at 2009 ASCO Annu...(ided into chemo-sensitive (A) and chemo ...)

Date:6/1/2009

ided into chemo-sensitive (A) and chemo refractory (B) cohorts. Median time to progression was 17.4 weeks (range 5.3 - 36.1 weeks) in A and 11.7 weeks (range 1.9 - 19.4 weeks) in B, considered by the investigators to be favorable compared to historical controls. Observed toxicities with the combination were consistent with those associated with topotecan.

Abstracts of all eleven presentations or publications on AT-101 made in conjunction with the 2009 ASCO Annual Meeting are available at www.asco.org.

About AT-101

AT-101 is an orally-active, pan-Bcl-2 inhibitor (including Bcl-2, Bcl-xL, Bcl-w, and Mcl-1 inhibition) that has been shown to induce apoptosis directly by operating as a BH3 mimetic and indirectly as an independent upregulator of Noxa and Puma. By blocking the binding of Bcl-2 family members with proapoptotic proteins and upregulating specific proapoptotic factors, AT-101 lowers the threshold for cancer cells to undergo apoptosis in various tumor types.

About Ascenta Therapeutics

Ascenta Therapeutics, Inc. is a privately-held, clinical-stage biopharmaceutical company that discovers and develops new medicines for the treatment of cancer. The company is headquartered in Malvern, Pennsylvania, and has a preclinical research facility in Shanghai, China. Its technology is focused on discovering molecules that restore the natural potential for cancer cells to undergo cell death (apoptosis). Ascenta's lead agent, AT-101, is an orally-active small molecule pan Bcl-2 inhibitor (Bcl-2, Bcl-xL, and Mcl-1) currently in Phase 2 clinical trials. The Company's preclinical pipeline includes the oral multi-IAP antagonist AT-406, and an HDM2-p53 inhibitor program.

For additional information on Ascenta Therapeutics, please visit the company's website at www.ascenta
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