Pomalidomide is a drug that changes that enhances or suppresses your immune systems reaction to a stimulus.This change may help the body destroy tumor cells. Bortezomib is an inhibitor that targets how cells dispose of unneeded proteins. By blocking this process, bortezomib can help destroy unwanted cells. Dexamethasone is a steroid, that helps prevent inflammation in a wide variety of organs and acts against myeloma cells. Elotuzumab is a monoclonal antibody, Elotuzumab targets a protein that is highly common on the surface of multiple myeloma cells called SLAMF7.