TNFRSF17 and AL amyloidosis: Bispecific antibodies targeting B-cell maturation antigens (BCMA) have emerged as promising therapeutic options for relapsed and/or refractory multiple myeloma (RRMM).<h4>Methods</h4>This retrospective study evaluated the efficacy and safety of teclistamab, a BCMA-directed bispecific antibody, in patients with RRMM with renal impairment (RI) at baseline compared to those without.