Reduced-Intensity Conditioning with Busulfan, Fludarabine, and Antithymocyte Globulin for Hematopoietic Cell Transplantation from Unrelated or Haploidentical Family Donors in Patients with Acute Myeloid Leukemia in Remission

•Unrelated and haploidentical family donor hematopoietic cell transplantation after reduced-intensity conditioning with antithymocyte globulin showed equivalent anti–acute myeloid leukemia effect as matched sibling donor hematopoietic cell transplantation•Decreasing chronic graft-versus-host disease effect of antithymocyte globulin in unrelated donor and haploidentical family donor hematopoietic cell transplantation over-rode effect of HLA disparity