Kidney Transplantation Post–Chimeric Antigen Receptor T-Cell (CAR-T) Therapy in Multiple Myeloma

Kidney disease affects approximately half of patients with multiple myeloma (MM), and kidney failure is associated with poor prognosis. Kidney transplantation is rarely pursued in MM due to concerns of relapse, infection, and allograft rejection. However, advances in therapy, including B-cell maturation antigen (BCMA)–directed chimeric antigen receptor (CAR) T-cell therapy, have led to deep and durable hematologic responses, creating new opportunities for transplantation in select patients. We report a 71-year-old man with stage III MM and high-risk cytogenetics [del(17p)] who developed end-stage kidney disease requiring hemodialysis during his treatment course.