SAN ANTONIO--(BUSINESS WIRE)--GenSpera, Inc. (OTCBB: GNSZ) announced that its patent application, entitled “Tissue Specific Prodrugs,” has been issued by the United States Patent and Trademark Office (USPTO) as US Patent 7,767,648. The patent covers the method of use for G-202, GenSpera’s lead oncology drug, which is currently in a Phase I clinical study treating cancer patients whose disease has progressed after other treatments.
