Juno Therapeutics Inc. planned to win US FDA approval in 2017 for its chimeric antigen receptor T cell (CAR-T) cell therapy JCAR015, but the company has reached another significant milestone that may delay that goal: its Phase II ROCKET clinical trial in the treatment of adults with relapsed or refractory B cell acute lymphoblastic lymphoma (ALL) has been put on clinical hold due to three deaths.
Juno recently instituted a new pre-conditioning regimen in ROCKET that added fludarabine to cyclophosphamide chemotherapy, which was administered before the company's engineered T cells were injected back into recently enrolled patients