NEW YORK--(BUSINESS WIRE)--ZIOPHARM Oncology, Inc. (NASDAQ: ZIOP) announced today that Dr. Jonathan Lewis, Chief Executive Officer, will present at the ThinkEquity Think Big Conference on Thursday, August 2, 2007 at 9:45 a.m. ET at the Mandarin Oriental Hotel, New York. Dr. Lewis will provide an overview of the Company and an update on its clinical development programs.