Elotuzumab and Lenalidomide After Stem Cell Transplant in Treating Patients With Newly Diagnosed Multiple Myeloma

This phase II trial studies how well elotuzumab works when given with lenalidomide as maintenance therapy after transplant in patients with newly diagnosed multiple myeloma who underwent transplant using their own stem cells (autologous transplant). Maintenance therapy is treatment that is given to help keep cancer from coming back after it has disappeared following the initial treatment. Immunotherapy with monoclonal antibodies, such as elotuzumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Biological therapies, such as lenalidomide, may stimulate or suppress the immune system in different ways and stop cancer cells from growing. Adding elotuzumab to standard maintenance therapy with lenalidomide may work better in treating patients with multiple myeloma who have undergone transplant.