Hemogenyx CAR-T Therapy on Clinical Hold

FDA has issued Hemogenyx Pharmaceuticals a clinical hold on an IND for the company’s chimeric antigen receptor T-cells (CAR-T) therapy for treating acute myeloid leukemia. The company says the hold is related to a “splicing that occurs during the manufacturing process of the lentivirus that is used to produce CAR-T cells.” It says it has identified the source of the splicing deficiency and has already developed a method to eliminate it, and the lentivirus is being remanufactured. FDA’s clinical hold letter also contains several suggestions to improve the safety of the CAR-T therapy, Hemogenyx says.

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