Outcome of allogeneic SCT in patients with chronic myeloid leukemia in the era of tyrosine kinase inhibitor therapy

Ann Hematol. 2013 Apr;92(4):487-96. doi: 10.1007/s00277-012-1650-8. Epub 2012 Dec 19.

Abstract

The introduction of tyrosine kinase inhibitors (TKIs) for chronic myeloid leukemia (CML) led to a dramatic change in the role of allogeneic stem cell transplantation (SCT) with a rapid decline in the number of patients receiving SCT in first chronic phase (CP1). We evaluated 68 consecutive patients in all phases of CML (male/female = 39:29, 27 in CP1), who received SCT from related/unrelated donors (related/unrelated = 23:45) under myeloablative or reduced intensity conditioning (MAC/RIC = 45:23). Forty-eight patients (71 %) received TKIs pre-SCT, 20 patients post-SCT (29 %). Overall survival (OS) of CP1 patients achieved a plateau of 85 % at 10 months. Relapse-free survival (RFS) of CP1 patients was 85 % at 1 and 2 years, and 81 % at 5 years. Multivariate analysis showed adverse OS and RFS for patients transplanted >CP1 (hazard ratio (HR) = 6.61 and 4.62) and those who had grade III-IV aGvHD (HR = 2.45 and 1.82). Patients with advanced CML had estimated OS of 65 and 47 %; and RFS of 41 and 32 % at 1 and 2 years respectively. Therefore, for patients with advanced CML phases, allogeneic SCT provides an acceptable chance of cure. Transplant research should focus on improving conditioning regimens and post-SCT management for this subgroup of CML patients.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Antineoplastic Combined Chemotherapy Protocols / therapeutic use
  • Child
  • Cohort Studies
  • Female
  • Hematopoietic Stem Cell Transplantation* / methods
  • Humans
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive / diagnosis
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive / drug therapy
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive / mortality
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive / therapy*
  • Male
  • Middle Aged
  • Prognosis
  • Protein Kinase Inhibitors / therapeutic use*
  • Protein-Tyrosine Kinases / antagonists & inhibitors
  • Retrospective Studies
  • Transplantation, Homologous
  • Treatment Outcome
  • Young Adult

Substances

  • Protein Kinase Inhibitors
  • Protein-Tyrosine Kinases