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Elotuzumab is a monoclonal antibody directed against the SLAMF7 receptor, expressed on normal and malignant plasma cells with a lower expression on other lymphoid cells such as natural killer (NK) cells. Elotuzumab has no significant antimyeloma activity when given as a single agent to patients with relapsed or refractory multiple myeloma (RRMM). However, when combined with other antimyeloma agents, it results in improved response and outcome. Owing to the results from the landmark ELOQUENT-2 phase III clinical trial, which compared lenalidomide and dexamethasone with or without elotuzumab in patients with RRMM, elotuzumab in combination with lenalidomide and dexamethasone was approved by the American Food and Drug Administration (FDA) in November 2015 for multiple myeloma (MM) patients who received one to three prior lines of therapy. This review will give a brief description of the …