ATRA and anthracycline-based chemotherapy in the treatment of childhood acute promyelocytic leukemia (APL): A 10-year experience in Tunisia

Med Oncol. 2011 Dec;28(4):1618-23. doi: 10.1007/s12032-010-9642-9. Epub 2010 Aug 10.

Abstract

Reports on childhood APL from developing countries are scarce. We treated 65 APL with two consecutive trials combining ATRA and chemotherapy. Twenty (30.7%) were aged less than 20 years including 11 girls and 9 boys, with a median age of 12 years. Fever at presentation (P=0.002) and variant APL (P=0.044) were more frequent in children, while there were no significant difference between children and adults for WBC count, Sanz's score distribution and additional cytogenetic abnormalities. The CR rate was 95% (19/20) in children and 80% (36/45) in adults (P=0.13). Differentiation syndrome (DS) was less often observed in children (1/20) than in adults (13/45) (P=0.031). Two children relapsed and died during salvage therapy, and 2 died in CR from infection and from cardiac failure attributed to anthracyclines, while other children remained alive in CR. With a median follow-up of 4 years, 4-year EFS was 75% in children and 71.1% in adults (P=0.57), while 4-year OS was 75% in children vs. 73.3% in adults (P=0.72). Our results suggest that, even in the absence of optimal socio-economic condition, ATRA combined with anthracycline-based chemotherapy gives adequate results in childhood APL, as in adults.

Publication types

  • Clinical Trial

MeSH terms

  • Adolescent
  • Adult
  • Anthracyclines / administration & dosage*
  • Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
  • Child
  • Child, Preschool
  • Disease-Free Survival
  • Female
  • Humans
  • Kaplan-Meier Estimate
  • Leukemia, Promyelocytic, Acute / drug therapy*
  • Leukemia, Promyelocytic, Acute / mortality*
  • Male
  • Middle Aged
  • Treatment Outcome
  • Tretinoin / administration & dosage*
  • Tunisia
  • Young Adult

Substances

  • Anthracyclines
  • Tretinoin