Study Evaluating the Safety and Efficacy of JCARH125 in Subjects With Relapsed and/or Refractory Multiple Myeloma

Participants will undergo leukapheresis to isolate peripheral blood mononuclear cells (PBMCs) for the production of JCARH125. During JCARH125 production, participants may receive bridging chemotherapy for disease control. Following successful generation of JCARH125 product, participants will receive a course of lymphodepleting chemotherapy followed by one dose of JCARH125 administered intravenously (IV).

Participants will undergo leukapheresis to isolate PBMCs for the production of JCARH125. During JCARH125 production, participants may receive bridging chemotherapy for disease control. Following successful generation of JCARH125 product, participants will receive a course of lymphodepleting chemotherapy followed by two doses of anakinra administered subcutaneously and one dose of JCARH125 administered IV. Subjects receive anakinra for 5 consecutive days following JCARH125 infusion.