A humanized monoclonal antibody directed against the human CS1 (CD2 subset 1, CRACC, SLAMF7) antigen with potential antineoplastic activity. Elotuzumab binds to the CS1 antigen, which may trigger antibody-dependent cellular cytotoxicity (ADCC) in cells expressing CS1. CS1 is a cell surface glycoprotein belonging to the CD2 subset of the immunoglobulin superfamily (IgSF) and is highly expressed by multiple myeloma cells, but minimally expressed by normal cells. Check for active clinical trials using this agent. (NCI Thesaurus)