The use of proteasome inhibitors and immunomodulatory agents in the treatment of myeloma have resulted in significant improvements in patient outcomes over the last decade. Although these agents now form the backbone of current myeloma treatment regimens both in the frontline and in a relapsed setting, drug resistance remains an inevitable challenge that most patients will encounter during their disease course. Hence, new treatment strategies continue to be explored, and the recent regulatory approvals of the monoclonal antibodies (mAbs) daratumumab (DARA) and elotuzumab (ELO), which target the plasma cell surface proteins CD38 and signaling lymphocytic activation molecule F7 (SLAMF7), respectively, have heralded the long-awaited era of antibody-based approaches in the treatment of myeloma. Hoping to build on these advances, a number of other mAbs are in various stages of clinical development, including those targeting myeloma cell surface antigens, the bone marrow microenvironment, and immune effector T cells such as anti-programmed cell death protein 1 antibodies. In this review, the current landscape and practical use of mAb-based therapy in myeloma will be discussed.
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