NCT00255710 2010-03-17Cyclophosphamide and/or Mycophenolate Mofetil With or Without Tacrolimus in Treating Patients Who Are Undergoing a Donor Bone Marrow or Peripheral Stem Cell Transplant for Hematologic CancerSidney Kimmel Comprehensive Cancer Center at Johns HopkinsPhase 1 Completed60 enrolled