Early peripheral blood blast clearance during induction chemotherapy for acute myeloid leukemia predicts superior relapse-free survival Academic Article uri icon


MeSH Major

  • Antineoplastic Agents
  • Blast Crisis
  • Precursor Cell Lymphoblastic Leukemia-Lymphoma


  • In childhood acute lymphoblastic leukemia (ALL), a rapid decline of circulating leukemic blasts in response to induction chemotherapy or prednisone is one of the most important prognostic factors, not only for achieving remission but also for relapse-free survival (RFS). However, in acute myeloid leukemia (AML) parameters of chemosensitivity have been restricted mainly to the rapidity of achievement of complete remission (CR) or the assessment of residual leukemic bone marrow blasts during aplasia. We hypothesized that the time to circulating peripheral blood blast clearance, as a potential surrogate for in vivo chemosensitivity, would have prognostic relevance in AML also. In a retrospective analysis of a cohort of 86 adult patients with AML receiving uniform induction and consolidation chemotherapy, we demonstrate that the time to clearance of circulating blasts during induction chemotherapy is an independent prognostic marker of RFS, superseding other known or established risk factors, including karyotype and number of inductions to achieve CR.

publication date

  • December 15, 2007



  • Academic Article



  • eng

Digital Object Identifier (DOI)

  • 10.1182/blood-2007-07-104091

PubMed ID

  • 17909077

Additional Document Info

start page

  • 4172

end page

  • 4


  • 110


  • 13