On February 09, 2016 ZIOPHARM Oncology, Inc. (Nasdaq:ZIOP), a biopharmaceutical company focused on new cancer immunotherapies, reported that the first patient has been enrolled in a Phase 1 clinical study of its second generation non-viral CD19-specific chimeric antigen receptor (CAR) modified T-cell therapy in patients with advance lymphoid malignancies (Press release, Ziopharm, FEB 9, 2016, View Source [SID:1234509011]). The CD19-specific T cells were modified using the Sleeping Beauty system to stably express the CAR in T cells. Schedule your 30 min Free 1stOncology Demo! The Sleeping Beauty transposon-transposase is a unique non-viral system for introducing genes encoding CARs and T-cell receptors (TCRs) into lymphocytes and is exclusively licensed by Intrexon Corporation (NYSE:XON) through The University of Texas MD Anderson Cancer Center and accessed as part of ZIOPHARM’s collaboration. This non-viral approach may play an important role in immunotherapy and has several potential advantages over viral delivery systems, including:
Discover why more than 1,500 members use 1stOncology™ to excel in:
Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing
Schedule Your 30 min Free Demo!
Lower cost of generating genetically modified T cells
Generate T cells with minimal ex vivo processing
Conduit to targeting solid tumor neo-antigens using TCRs
Pathway to overcome regulatory hurdles
"The survival benefit seen in early clinical results with our first generation CD19-specific CAR+ T cells were highly encouraging, and preclinical results to date suggest that our next generation CAR structure may improve upon these outcomes," said Laurence Cooper, M.D., Ph.D., Chief Executive Officer of ZIOPHARM. "These studies continue to strengthen our understanding of the application and benefit of the Sleeping Beauty platform, the only efficient non-viral gene transfer system in clinical application. Sleeping Beauty offers the potential to significantly reduce the expense and simplify the implementation of genetically modified T cells, both of which are critical to the personalization and broad application of immunotherapies based on CARs and TCRs."
In two prior trials the first generation CD19-specific CAR+ T cells, patient-derived (autologous) or donor-derived (allogeneic) T cells were administered to recipients with advanced CD19-expressing leukemias and lymphomas after hematopoietic stem-cell transplantation (HSCT). Results demonstrated an apparent doubling of survivals compared to historical controls.
The second-generation Sleeping Beauty CAR+ T cells employ a revised CAR construct designed to improve persistence and anti-tumor response over the first generation therapy. Additionally, this investigational treatment is independent of HSCT. This trial is being conducted at MD Anderson.