NCT00576979 2026-03-24Intensity-Modulated Radiation Therapy, Etoposide, and Cyclophosphamide Followed By Donor Stem Cell Transplant in Treating Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia or Acute Myeloid LeukemiaCity of Hope Medical CenterPhase 1/2 Completed51 enrolled 16 charts