REDWOOD CITY, Calif., Jan. 12, 2010 (GLOBE NEWSWIRE) -- Threshold Pharmaceuticals, Inc. (Nasdaq:THLD) today announced clinical trial results related to Threshold's clinical stage hypoxia-activated prodrug, TH-302. The results are being presented at the 28th Annual J.P. Morgan Healthcare Conference taking place in San Francisco from January 11 to 14, 2010.