Incidence and reasons for late failure after allogeneic haematopoietic cell transplantation following BuCy2 in acute myeloid leukaemia.

The long-term follow-up is presented for 317 patients with acute myeloid leukaemia who underwent human leucocyte antigen-identical sibling marrow transplants between 1984 and 1995 following preparation with busulfan 16 mg/kg and cyclophosphamide 120 mg/kg. Among the 142 (45%) who were alive and leukaemia-free 3 years following transplantation, the leukaemia-free survival at 15 years was 72·8%. The cumulative incidence of late (>3 years beyond transplant) non-relapse mortality at 15 years was 12·9% and of late relapse was 16·5%. None of the variables considered (including age, disease stage, and graft- versus-host disease) were predictive of late failure. [ABSTRACT FROM AUTHOR]