REDWOOD CITY, Calif., Aug. 12, 2008 (PRIME NEWSWIRE) -- Threshold Pharmaceuticals, Inc. (Nasdaq:THLD), today announced that it has initiated a clinical trial of TH-302 in combination with various chemotherapeutic agents in patients with advanced solid tumors. TH-302 is a proprietary Hypoxia-Activated Prodrug (HAP) that specifically targets tumor hypoxia.
