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FDA Grants Orphan Drug Designation to CD4CAR for the Treatment of Peripheral T-Cell Lymphoma

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iCell Gene Therapeutics announced that the U.S. Food and Drug Administration (FDA) has granted Orphan Drug designation for its chimeric antigen receptor engineered T-cells directed against the target protein CD4 (CD4CAR) for the treatment of peripheral T-cell lymphoma (PTCL).

William Tse, MD, Chief of the Blood and Marrow Transplantation Division in Department of Medicine at the University of Louisville School of Medicine, said, “We are very excited to have this opportunity to partner with iCell Gene Therapeutics to lead the efforts of preparing this cutting-edge immunotherapy into first-in-human clinical trial for patients suffering this extremely difficult-to-treat T-cell lymphoma.”

The Orphan Drug Designation program provides orphan status and associated development incentives to drugs and biologics intended for the safe and effective treatment, diagnosis, or prevention of rare diseases or disorders that affect fewer than 200,000 people in the United States.

About CD4CAR

CD4CAR is in development for CD4­–positive T-cell malignancies. The novel CD4-specific chimeric antigen receptor engineered T-cells are properly matched allogeneic human T-cells engineered to express an anti­­–CD4scFV antibody domain. An initial phase I clinical study is being planned through collaboration between iCell Gene Therapeutics, the National Institutes of Health, Indiana Clinical and Translational Sciences Institute, Stony Brook Hospital, and the Blood and Marrow Transplantation Division and the Clinical Trial Research Unit at James Graham Brown Cancer Center at University of Louisville.

About PTCL

Although there are clinical development programs ongoing with CAR T-cells for CD19-positive cell hematologic malignancies, CD4–positive peripheral T-cell lymphomas (PTCLs) have not been targeted by a CAR therapy in a human trial. PTCLs account for 10% to 15% of all non-Hodgkin lymphomas (NHLs) and are more difficult to treat in comparison to B-cell NHLs.

Furthermore, and with few exceptions, T-cell NHLs have poorer outcomes, lower response rates, shorter times to progression, and shorter median survival in comparison to B-cell NHLs. As a result, the standard of care for PTCLs is not well-established and the only potential curative regimen is bone marrow transplant.

However, not only is bone marrow transplant poorly tolerated, but is not an option for a significant subset of patients with resistant disease. This leaves many patients with no curative options.

The content in this post has not been reviewed by the American Society of Clinical Oncology, Inc. (ASCO®) and does not necessarily reflect the ideas and opinions of ASCO®.


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