After meeting the eligibility criteria and enrolling on the trial, patients will undergo leukapheresis for collection of autologous lymphocytes, which will be sent to BMS/Celgene manufacturing facilities. Once cells have been manufactured, patients will then proceed to lymphodepleting chemotherapy with cyclophosphamide 300mg/m2 and fludarabine 30mg/m2 for 3 consecutive days followed by the infusion of BCMA CAR T-cells at a target dose of 450 x106 cells. Maintenance lenalidomide, starting at 10mg a day for 21 days of a 28-day cycle will be initiated at a minimum of at least 30 days, but no later than 180 days after the CAR T-cell infusion and will continue until the patient reaches 12 months post CAR T-cell infusion and continue free of progression
This study is designed as a Phase II, multicenter, single arm trial to assess anti-B Cell Maturation Antigen (BCMA) chimeric antigen receptor (CAR) T-cells (bb2121) to improve post autologous hematopoietic cell transplant (HCT) responses among patients with multiple myeloma (MM).