Inhibition of tumor growth in preclinical models
Synta also presented results showing that ganetespib reduces tumor invasiveness in preclinical models, including the ability of tumors to spread (metastasis) and grow new blood vessels (angiogenesis). These effects are consistent with observations in GALAXY-1: the appearance of new lesions was substantially reduced in the ganetespib arm as compared to the control arm.
Conference Call and WebcastSynta will host a webcast and conference call at 8:00 AM ET on Monday, October 28, 2013, to discuss these results. The webcast, which will include both audio and slides, can be accessed by visiting the home page or the Investor Relations section of the Synta Pharmaceuticals website, www.syntapharma.com. The conference call can be accessed by dialing (877) 407-8035 (U.S.) or (201) 689-8035 (International). Participants can follow along with the prepared slide presentation that is available on the home page of the company’s website, www.syntapharma.com. For those unable to join the live call, a replay will be available from 12:00 PM ET on October 28 through 11:59 PM ET on November 4, 2013. To access the replay, please dial (877) 660-6853 (U.S.) or (201) 612-7415 (International) and refer to conference ID 10000731. About Ganetespib Ganetespib, an investigational drug candidate, is a selective inhibitor of heat shock protein 90 (Hsp90), a molecular chaperone which controls the folding and activation of a number of client proteins that drive tumor development and progression. Many solid and hematologic tumors are dependent on Hsp90 client proteins including proteins involved in “oncogene addiction” (ALK, HER2, mutant BRAF and EGFR, androgen receptor, estrogen receptor, JAK2); proteins involved in resistance to chemotherapy and radiation therapy (ATR, BCL2, BRCA1/2, CDK1/4, CHK1, survivin, and WEE1); proteins involved in angiogenesis (HIF-1alpha, VEGFR, PDFGR, and VEGF); and proteins involved in metastasis (MET, RAF, AKT, MMPs, HIF-1alpha, and IGF-1R). In preclinical models, inhibition of Hsp90 by ganetespib results in the inactivation, destabilization, and eventual degradation of these cancer-promoting proteins. Ganetespib is being evaluated in trials in lung cancer, breast cancer, and other tumor types. The most common adverse event seen to date has been transient, mild or moderate diarrhea, which has been manageable with standard supportive care. Information on these trials can be found at www.clinicaltrials.gov. Ganetespib has received Fast Track designation from FDA for second-line treatment of non-small cell lung adenocarcinoma in combination with docetaxel. About the GALAXY Program The GALAXY (Ganetespib Assessment in Lung cAncer with docetaXel) program consists of two randomized trials comparing the combination of ganetespib and docetaxel versus docetaxel alone in patients with Stage IIIB/IV NSCLC who have received one prior systemic therapy: a Phase 2b/3 trial (GALAXY-1) to determine the patient population most likely to derive benefit from ganetespib, and a confirmatory Phase 3 trial (GALAXY-2). More information about the GALAXY trials can be found at www.clinicaltrials.gov (NCT01348126 and NCT01798485). About Lung Cancer Lung cancer is the leading cause of cancer-related death in the world, accounting for nearly 1.4 million deaths in 2008, according to the World Health Organization. The five-year survival rate for this disease is approximately 16%; over half of people with lung cancer die within one year of being diagnosed. In the U.S., the American Cancer Society estimates that 228,000 cases of lung cancer will be diagnosed in 2013. Non-small cell adenocarcinoma comprises about 40% of all lung cancer.
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