Real-world outcomes of unselected elderly acute myeloid leukemia patients referred to a leukemia/hematopoietic cell transplant program

Bone Marrow Transplant. 2020 Jan;55(1):189-198. doi: 10.1038/s41409-019-0675-1. Epub 2019 Sep 16.

Abstract

Due to perceived intolerance, many elderly AML patients do not receive therapy, and few are considered for hematopoietic cell transplantation (HCT). To better understand "real-world" outcomes, 323 consecutive AML patients ≥ 60 years referred from 2009 to 2017 were evaluated (median age 70 [60-88] years); favorable (fav) in 48 (15%), intermediate (int) in 112 (35%) and poor risk in 161 (50%). Remission induction therapy, either intensive chemotherapy (IC, n = 205) or hypomethylating agents (HMA, n = 57), was given to all but 61 (19%) patients. With median f/u of 34 months, 2-year overall survival (OS) for the whole cohort was 31%; 40 and 33% for IC- and HMA-treated vs. 0% for untreated patients. Early mortality was 14%. Remission (CR/CRi) was achieved in 60% of patients, with approximately half of these surviving 2 years. In transplant-eligible patients (60-75-year-old, int/poor risk, achieving remission), 54 (46%) of 118 received HCT. Transplanted patients had improved 2- and 3-year post-remission survival of 59% and 40% compared to 26% and 18% in similar patients not receiving HCT (HR = 0.59, 95% CI 0.37-0.93, p = 0.023). These results suggest that survival of elderly AML patients may be improved through a coordinated approach of remission induction therapy for most patients followed by HCT when feasible.

MeSH terms

  • Aged
  • Cohort Studies
  • Hematopoietic Stem Cell Transplantation*
  • Humans
  • Leukemia, Myeloid, Acute* / therapy
  • Middle Aged
  • Remission Induction
  • Retrospective Studies
  • Transplantation, Homologous