NCT01701986 2025-02-28Gemcitabine Hydrochloride, Clofarabine, and Busulfan Before Donor Stem Cell Transplant in Treating Patients With Refractory B-Cell or T-Cell Non-Hodgkin Lymphoma or Hodgkin LymphomaM.D. Anderson Cancer CenterPhase 1/2 Completed64 enrolled 13 charts