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July 22, 2014
07:15 EDTXON, ZIOPZiopharm announces expansion of oncology programs with Intrexon
Ziopharm (ZIOP) announced the expansion of synthetic immuno-oncology programs in conjunction with Intrexon (XON) to include chimeric antigen receptor T-cell, or CAR-T, therapy. Additionally the company has provided an update on its development efforts with the proprietary RheoSwitch Therapeutic System, or RTS, platform, an inducible regulator for expression of therapeutic molecules through administration of an oral activator ligand, as well as its clinical program with Ad-RTS-IL-12, a novel DNA-based therapeutic candidate for the controlled expression of IL-12. CAR-T cells represent an emerging, high value immunological therapy that can target and destroy cancer cells displaying "personalized" fingerprints, yet current approaches feature challenges associated with toxicity, off-target effects, and uneconomical manufacturing. Intrexon possesses the integrated technology platforms, molecular engineering, systems biology, and cell engineering capabilities required to overcome these challenges and fully realize the potential of CAR]T cell therapies. Most significantly, utilization of the RTS platform will facilitate exquisite regulation of one or more bioeffectors in CAR-T cells enabling physicians to control systemic effects of cell therapies with an appropriate dosing regimen of the oral activator ligand, and eventually bring about improved safety and efficacy of these and related therapeutic strategies. Further preclinical work is underway in this promising area of study, and ZIOPHARM and Intrexon expect to provide a progress update in the second half of 2014.
News For ZIOP;XON From The Last 14 Days
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November 19, 2015
09:29 EDTXONIntrexon's AquaAdvantage salmon approved by FDA
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07:07 EDTZIOPZIOPHARM announces data highlighting Ad-RTS-hIL-12 activity in Glioma
ZIOPHARM Oncology announced that the company is presenting initial results from an ongoing Phase 1 dose-escalation study of Ad-RTS-hIL-12 + orally administered veledimex in recurrent or progressive glioblastoma or grade III malignant glioma. The presentation, titled "Intratumoral Regulated Expression of IL-12 as a Gene Therapy Approach to Treatment of Glioma," will be delivered at 5:15 pm CT, Saturday, November 21, 2015 at the 20th Annual Society for Neuro-Oncology, or SNO, Annual Scientific Meeting in San Antonio, Texas. Ad-RTS-hIL-12 + the oral activator veledimex is a novel viral gene therapy candidate for the controlled expression of IL-12, a critical protein for stimulating an anti-cancer T-cell immune response. The ongoing multi-center Phase 1 trial of Ad-RTS-hIL-12 + veledimex examines a gene therapy strategy for recurrent high grade gliomas, with the goal of generating a localized anti-tumor immune response. The primary objective of the study is to determine the safety and tolerability of a single intra-tumoral Ad-RTS-hIL-12 injection activated upon dosing with oral veledimex. Secondary objectives are to determine the Ad-RTS-hIL-12 + veledimex maximum tolerated dose, the immune responses elicited by Ad-RTS-hIL-12 + veledimex, and assessment of biologic response. The study is expected to enroll up to 72 subjects. Preclinically, the effects of Ad-RTS-mIL-12 + veledimex were studied in orthotopic glioma animal models, demonstrating veledimex crossed the blood-brain-barrier. In a standard orthotopic glioma mouse model that evaluated dexamethasone, bevacizumab, temozolamide and a PD-1 inhibitor, Ad-RTS-mIL-12 + veledimex demonstrated a dramatic dose-related increase in survival, without significant adverse events, that was superior to all other treatments. In the current, on-going Phase 1 study, five patients are available for initial assessment, two with recurrent grade III malignant glioma and three with grade IV. Results show IL-12 was detectable in peripheral blood along with downstream IFNg, indicating that veledimex crossed the blood brain barrier activating IL-12 expression from intra-tumorally administered Ad-RTS-hIL-12. Ad-RTS-hIL-12 + veledimex was well tolerated with minimal neurologic toxicity. The most common adverse events were headache, fever, hyponatremia and nausea/vomiting. Related serious adverse events were aseptic meningitis, neutropenia, thrombocytopenia, leukopenia, with all toxicity to date consistent with the "on-target" effects of immunotherapy.
November 18, 2015
08:16 EDTXONOragenics announces completion of pre-IND meeting for OG253
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