MLN9708 for the Prophylaxis of Chronic Graft-versus-host Disease in Patient Undergoing Allogeneic Transplantation

This is a phase I/II study of MLN9708 for the prophylaxis of chronic graft-versus-host-disease (GVHD) in patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT). During the phase I portion, patients undergoing both sibling and unrelated donor transplantation will be enrolled on the same arm to determine the dose-limiting toxicity (DLT) and maximum-tolerated dose (MTD). During the phase II portion of the trial, patients will be enrolled into two separate and independent cohorts: a) Matched sibling transplants and b) Unrelated donors transplants. Both cohorts will be enrolled and analyzed separately.