Fast Track for Therapy for Reducing Cell Transplant Rejection
FDA has granted Fate Therapeutics a fast track designation for ProTmune for reducing the incidence and severity of acute graft-versus-host disease (GvHD) in patients undergoing allogeneic hematopoietic cell transplantation (HCT). The company says it is currently investigating ProTmune in an open-label Phase 1/2 clinical trial that is evaluating the therapy for preventing acute GvHD and cytomegalovirus (CMV) infection, both of which are leading causes of morbidity and mortality in HCT patients.
The multi-center trial design involves an initial 10-subject, Phase 1 stage, during which all subjects undergoing allogeneic mobilized peripheral blood (mPB) HCT will receive ProTmune, according to the company. Following an independent data monitoring committee safety review, a 60-subject, randomized, controlled Phase 2 stage is expected to enroll, during which subjects will be assigned to receive either ProTmune or a conventional mPB cell graft in a 1:1 ratio.
Fate Therapeutics describes ProTmune as an investigational programmed cellular immunotherapy that is produced by “modulating a donor-sourced, mobilized peripheral blood graft ex vivo with two small molecules (FT1050 and FT4145) to enhance the biological properties and therapeutic function of the graft's immune cells. The programmed mobilized peripheral blood graft is adoptively transferred and administered to a patient as a one-time intravenous infusion.”