ZIOP ZIOPHARM Oncology Inc

Ziopharm Oncology, Inc. (Nasdaq: ZIOP), today announced the Company will host a conference call and webcast on Thursday, May 7, at 4:30 pm EDT to provide a corporate update and discuss financial results for the first quarter ended March 31, 2020. The call can be accessed by dialing 1-877-451-6152 (U.S. and Canada) or 1-201-389-0879 (international). The passcode for the conference call is 13701877. To access the live webcast or the subsequent archived recording, visit the “Investors” section of the Ziopharm website at www.ziopharm.com. The webcast will be recorded and available for replay on the Company’s website for two weeks.

About Ziopharm Oncology, Inc. Ziopharm Oncology is an immuno-oncology company focused on developing end-to-end cost-effective solutions using its non-viral Sleeping Beauty platform for T-cell receptor (TCR) and chimeric antigen receptor (CAR) T-cell therapies and immune-stimulating gene therapy with Controlled interleukin 12 (IL-12). The Sleeping Beauty platform genetically modifies T cells with DNA plasmids to express TCRs to target neoantigens inside and outside hotspots for solid tumors and CAR to target CD19 for blood cancers using the Company’s “Rapid Personalized Manufacturing” to produce and release CAR-T as soon as the day after gene transfer. The Sleeping Beauty platform is being advanced in collaboration with the National Cancer Institute, The University of Texas MD Anderson Cancer Center and Eden BioCell. The Company is also developing its Controlled IL-12 platform, or Ad-RTS-hIL-12 plus veledimex, as monotherapy and in combination with immune checkpoint inhibitors to treat brain cancer, including in collaboration with Regeneron Pharmaceuticals.Ziopharm Contact: Chris Taylor VP, Investor Relations and Corporate Communications T: 617.502.1881 E: ctaylor@ziopharm.com