KOS, Greece--(BUSINESS WIRE)--ZIOPHARM Oncology, Inc. (NASDAQ: ZIOP), announced today the presentation of two posters at the XIth Annual International Myeloma Workshop being held in Kos, Greece from June 25-28th, 2007. The meeting highlights important advances made in the biology and treatment of multiple myeloma. ZIOPHARM is presenting darinaparsin (ZIO-101) gene expression profiling data that further elucidates its unique mechanism of action as well as interim Phase II data from two ongoing trials in advanced myeloma.