Dr. S. Vincent Rajkumar on a New Bortezomib Triplet in Multiple MyelomaByS. Vincent Rajkumar, MDDecember 14th 2015S. Vincent Rajkumar, MD, discusses bortezomib, lenalidomide, and dexamethasone coming out on top in a recent phase III trial over lenalidomide and dexamethasone alone.