BCMA-directed chimeric antigen receptor T cell compositions and methods and uses thereof

Provided in some aspects are compositions of cells for treating subjects with disease and conditions such as multiple myeloma (MM), and related methods, compositions, uses and articles of manufacture. In some embodiments, the disease or condition is a relapsed or refractory multiple myeloma (r/r MM). The cells generally express recombinant receptors such as chimeric antigen receptors (CARs) for targeting an antigen, such as BCMA, on cells of the myeloma.