We retrospectively assess the long-term outcome and determined prognostic factors correlated with outcomes in adults with acute myeloid leukemia (AML) undergoing autologous hematopoietic stem cell transplantation (HSCT) in our institution over a 19-year period. A total of 78 adults who received autologous HSCT for AML in first complete remission (CR) and of 21 adults in further CR were included in the study. Bone marrow (n = 14) or peripheral blood stem cells (PBSC) (n = 85) transplantation was performed at a median of 2.9 months from CR. Hematologic recovery was significantly reduced in the PBSC group. Five-year cumulative incidences of relapse were 56 and 49%, respectively. Corresponding 5-year probabilities of event-free survival (EFS) were 33 and 35%, while those of overall survival (OS) were 38 and 49%, respectively. In multivariate analyses, cytogenetics was the main prognostic factor for outcome. Treatment-related mortality (TRM) was of 15% at 5 years, but higher in females as compared to males (p = 0.04). We confirmed that long-term EFS can be achieved after autologous HSCT in adult patients with AML. Results in adults who experience a relapse after conventional chemotherapy support the use of autologous HSCT as salvage therapy if such patients achieve a subsequent CR.
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