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J Clin Oncol. 2012 Jul 10;30(20):2441-8. doi: 10.1200/JCO.2011.37.1286. Epub 2012 Apr 16.

Cladribine, but not fludarabine, added to daunorubicin and cytarabine during induction prolongs survival of patients with acute myeloid leukemia: a multicenter, randomized phase III study.

Author information

1
Comprehensive Cancer Center M. Curie-Sklodowska Memorial Institute, Branch Gliwice, Gliwice, Poland. jholowiecki@io.gliwice.pl

Abstract

PURPOSE:

The goal of this study was to evaluate whether the addition of a purine analog, cladribine or fludarabine, to the standard induction regimen affects the outcome of adult patients with acute myeloid leukemia (AML).

PATIENTS AND METHODS:

A cohort of 652 untreated AML patients with median age 47 years (range, 17 to 60 years) were randomly assigned to receive one of three induction regimens: DA (daunorubicin plus cytarabine), DAC (DA plus cladribine), or DAF (DA plus fludarabine). Postremission treatment was the same for all arms.

RESULTS:

Complete remission rate in the DAC arm was higher compared with the DA arm (67.5% v 56%; P = .01) as a consequence of reduced incidence of resistant disease (21% v 34%; P = .004). There was no significant difference in early outcome between the DAF and DA arms. The probability of overall survival was improved for the DAC arm (45% ± 4% at 3 years) compared with the DA arm (33% ± 4%; P = .02), and leukemia-free survival was comparable. Long-term outcome did not differ significantly for the comparison of the DAF and DA arms. A survival advantage of the DAC arm over the DA arm was observed among patients age 50 years or older (P = .005), those with initial leukocyte count above 50 × 10(9)/L (P = .03), and those with unfavorable karyotype (P = .03). DAF revealed a significant advantage over DA in patients with adverse karyotype (P = .02).

CONCLUSION:

The addition of cladribine to the standard induction regimen is associated with increased rate of complete remission and improved survival of adult patients with AML.

PMID:
22508825
DOI:
10.1200/JCO.2011.37.1286
[Indexed for MEDLINE]

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