Comparison of Post-Remission Strategies in Acute Myeloid Leukemia: Autologous Hematopoietic Stem Cell Transplantation versus Consolidation Chemotherapy

Abstract

Autologous Hematopoietic Stem Cell Transplantation (auto-HSCT) has become a therapeutic option for first-line consolidation in Acute Myeloid Leukemia (AML) patients with favorable and intermediate risk features. A total of 101 AML patients in first complete remission, who were not eligible for allogeneic HSCT, were randomized to receive intensive cytarabine-based chemotherapy or to undergo auto-HSCT. The probability of LFS was significantly better in auto-HSCT recipients compared to chemotherapy arm (43% vs 4.8%, p=0.008). At the end of 915 (30-4470) days of followup, the probability of overall survival was better in auto-HSCT group compared to chemotherapy, without statistical significance (79.2% vs 38.8%, p=0.054). Multivariate analysis revealed a significant predictive impact of cytogenetic risk status on OS (p=0.002, HR: 2.824, 95% CI: 1.445- 5.521). Auto-HSCT is considered as an effective consolidation approach in favorable and intermadiate risk AML patients.