Abstract:Belantamab mafodotin (BLENREP) is a targeted anti-tumor drug developed by GlaxoSmithKline. It can selectively act on B cell maturation antigens on the surface of malignant plasma cells. The drug was approved by the U.S. Food and Drug Administration (FDA) on August 5, 2020 for the treatment of relapsed or refractory multiple myeloma in adults. Clinical trials have shown that belantamab mafodotin has good clinical effects. Its common adverse reactions include corneal disease, thrombocytopenia and anemia. In this paper, we mainly introduced the mechanism of action, dosage, pharmacokinetics, clinical research and adverse reactions of belantamab mafodotin, in order to provide some reference for clinical medication.