WASHINGTON--(BUSINESS WIRE)--ZIOPHARM Oncology, Inc. (Nasdaq: ZIOP), announced today that preclinical data on the novel organic arsenic darinaparsin (ZinaparTM, or ZIO-101) were presented at the American Association for Cancer Research (AACR) Annual Meeting in Washington, D.C. The presentation was from the team of James Goldenring, MD, PhD, Sanger Professor of Surgery and Cell & Developmental Biology, and Vice Chairman of Surgical Research at the Vanderbilt University Medical Center.