ZIOPHARM Oncology, Inc., a biotechnology company, focuses on acquiring, developing, and commercializing a portfolio of immuno-oncology therapies for treating heterogenous solid tumors and unknown antigens. The company develops two immuno-oncology platform technologies, including Controlled IL-12, which delivers interleukin 12 or IL-12, a master regular of the immune system, in a controlled and safe manner to focus the patient’s immune system to cancer; and Sleeping Beauty (SB), which is based on the genetic engineering of T-cells using the (SB) system to rapidly reprogram T-cells outside of the body for infusion. Its lead gene therapy product candidate is Ad-RTS-hIL-12 plus veledimex, which is in Phase I clinical trial, a gene therapy product candidate to treat patients with recurrent glioblastoma. The company is also developing chimeric antigen receptor (CAR) T-cell and T-cell receptor T-cell therapies. ZIOPHARM Oncology, Inc. has collaboration agreements with Precigen, Inc., MD Anderson Cancer Center, the National Cancer Institute, and Ares Trading S.A. The company is headquartered in Boston, Massachusetts.