Arcellx announces FDA lifted clinical hold for iMMagine-1 Phase 2 program

Arcellx announced clinical hold and clinical hold lifted by FDA for the company’s iMMagine-1 Phase 2 Clinical Program. On June 19, 2023, Arcellx announced that its iMMagine-1 study had been placed on partial clinical hold by FDA following a recent patient death, which involved a patient who was treated with CART-ddBCMA despite becoming ineligible for treatment under the trial protocol prior to CART-ddBCMA infusion. Subsequently, the patient was managed in a manner that conflicted with the trial protocol. On August 14, 2023, Arcellx announced that FDA had lifted the partial clinical hold after aligning with FDA on modifications to the iMMagine-1 trial protocol related to the prevention and management of the risk of adverse events within the trial. As a key effort to enhance protocol adherence, Arcellx retrained clinical sites. Additionally, FDA allowed an expansion of treatment options for therapies that patients in the iMMagine-1 trial are permitted to receive between apheresis and CAR-T infusion to better align its protocol with current clinical practice. The company anticipates presenting preliminary data from the iMMagine-1 study in the second half of 2024.