LUGANO, Switzerland--(BUSINESS WIRE)--ZIOPHARM Oncology, Inc. (NASDAQ: ZIOP) announces that positive interim data from an ongoing phase II trial of ZIO-201 (isophosphoramide mustard - IPM) to treat advanced sarcoma patients was presented at the European Society of Medical Oncology (ESMO) meeting held July 5-8, 2007 in Lugano, Switzerland. The abstract entitled, “Phase-I/II Study of IPM (ZIO-201) In Advanced Sarcoma,” was presented by Rashmi Chugh, MD, a Principal Investigator from the University of Michigan, Ann Arbor, Michigan.