CART-BCMA Cells for Multiple Myeloma

At entry subjects will undergo routine laboratory and imaging assessment of their multiple myeloma. Eligible subjects will undergo steady-state apheresis to obtain large numbers of peripheral blood mononuclear cells (PBMC) for CART-BCMA manufacturing. Cryopreserved historical apheresis products collected from the patient prior to study entry are usable for CART-BCMA manufacturing if collected at an appropriately certified apheresis center and the product meets adequate mononuclear cell yields. If a historical apheresis product is not available, an apheresis procedure will be scheduled for cell procurement after study entry. The T cells will be purified from the PBMC, transduced with TCRζ/4-1BB lentiviral vector, expanded in vitro and then frozen for future administration. The number of subjects who have inadequate T cell collections, expansion or manufacturing compared to the number of subjects who have CAR T cells successfully manufactured will be recorded; feasibility of product manufacturing is not expected to be problematic in this patient population.