SANGAMO ANNOUNCES UK AUTHORIZATION OF A PHASE 1/2 CLINICAL TRIAL EVALUATING THE CAR-TREG CELL THERAPY TX200 FOR KIDNEY TRANSPLANTATION
SANGAMO ANNOUNCES UK AUTHORIZATION OF A Phase 1/2 CLINICAL TRIAL EVALUATING THE CAR-TREG cell therapy TX200 FOR kidney transplantATION
The STEADFAST clinical study of TX200 is the first-in-human trial to evaluate a CAR-Treg cell therapy
Brisbane, California – November 19, 2019 – Sangamo Therapeutics, Inc. (Nasdaq: SGMO), a genomic medicine company, announced today that the United Kingdom’s (UK) Medicines Healthcare Products Regulatory Agency (MHRA) has granted authorization of the first-in-human clinical trial to evaluate a Chimeric Antigen Receptor Regulatory T Cell (CAR-Treg) therapy. TX200 is being studied for the prevention of immune-mediated rejection following HLA-A2 mismatched kidney transplantation for end-stage renal disease (ESRD). Sangamo expects to open the first clinical sites for the STEADFAST study in 2020.
“Being the first company to test a CAR-Treg candidate in humans is an important milestone for Sangamo and this exciting new frontier of cellular therapy. We believe that the TX200 program will be invaluable in expanding our understanding of the safety and mechanism of action of CAR-Treg cells and their relevance in the clinic,” said Adrian Woolfson, BM, BCh, PhD, Head of Research and Development at Sangamo. “This innovative and personalized cellular therapy approach for HLA-A2 mismatched kidney transplantation is designed to help regulate the body’s immune system specifically and locally to promote acceptance of an immunologically mismatched donor organ. Beyond transplantation, we plan to explore the potential of CAR-Tregs in a range of autoimmune and inflammatory diseases.”
TX200 HLA-A2 CAR-Treg cells are designed to accumulate and localize within the new kidney where the HLA‑A2 protein is present, thereby utilizing the ability of Tregs to suppress immune responses against the transplanted kidney. This approach aims to help the recipient’s immune system accept the new kidney and induce immunological tolerance, potentially allowing tapering and eventual elimination of accompanying standard-of-care immune suppressive treatments.
Kidney transplantation is the treatment of choice for patients with ESRD who must otherwise remain on long-term dialysis. To prevent graft rejection, transplanted patients are treated with lifelong immune suppressive therapy, which impacts the body’s immune system broadly and is associated with multiple side effects, including an increased risk of infectious complications, cancer, and other drug-related toxicities.
TX200, which has been developed in collaboration with Professor Megan Levings of the University of British Columbia1, entered Sangamo’s pipeline in 2018 as part of the acquisition of TxCell. Beyond kidney transplantation, Sangamo intends to use its zinc finger nuclease (ZFN) gene editing technology to develop next-generation autologous and allogeneic CAR-Treg cell therapies for use in treating autoimmune and inflammatory diseases.
About the STEADFAST study
The STEADFAST study is a multicenter, open-label, single ascending dose, dose-ranging Phase 1/2 study. Sangamo plans to run this study in five different countries in Europe: United Kingdom, France, Netherlands, Germany, and Belgium.
About Sangamo Therapeutics
Sangamo Therapeutics is committed to translating ground-breaking science into genomic medicines with the potential to transform patients’ lives using gene therapy, ex vivo gene-edited cell therapy, and in vivo genome editing and gene regulation. For more information about Sangamo, visit www.sangamo.com.
- JCI Insight. 2019;4(6):e123672. https://doi.org/10.1172/jci.insight.123672.
Forward Looking Statements
This press release contains forward-looking statements regarding Sangamo's current expectations. These forward-looking statements include, without limitation, statements regarding the potential benefits of cell therapy, including but not limited to Treg therapy, the Company's ability to develop and commercialize product candidates to address genetic diseases with the Company's proprietary technologies and the timing of commencement or next stages of such programs and the anticipated benefits therefrom. These statements are not guarantees of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict. Factors that could cause actual results to differ include, but are not limited to, the outcomes of clinical trials, the uncertain regulatory approval process, uncertainties related to the execution of clinical trials and uncertainties that research outcomes will support clinical programs. Actual results may differ from those projected in forward-looking statements due to risks and uncertainties that exist in Sangamo's operations and business environments. These risks and uncertainties are described more fully in Sangamo's Annual Report on Form 10-K for the year ended December 31, 2018 as filed with the Securities and Exchange Commission on March 1, 2019 and Sangamo's Quarterly Report on Form 10-Q for the quarter ended September 30, 2019 that it filed on November 6, 2019. TX200 is an investigational product and has not been determined to be safe or efficacious by regulatory authorities. Forward-looking statements contained in this announcement are made as of this date, and Sangamo undertakes no duty to update such information except as required under applicable law.
Contact
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Media Inquiries – Global
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Investor Relations and Media Inquiries – European Union & United Kingdom
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