Pembrolizumab + Lenalidomide Post Autologous Stem Cell Transplant (ASCT) in High-risk Multiple Myeloma (MM)

This is an open-label, Phase II, single center trial of pembrolizumab (MK-3475), lenalidomide and dexamethasone in subjects with high risk Multiple Myeloma (hrMM) post high-dose chemotherapy with autologous stem cell transplantation (ASCT). Patients with high-risk MM defined as those with one of the following abnormalities who have undergone induction therapy followed by single or tandem melphalan -based ASCT will be considered eligible.