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Blood. 2007 Feb 1;109(3):896-904. Epub 2006 Sep 26.

Results of the Dana-Farber Cancer Institute ALL Consortium Protocol 95-01 for children with acute lymphoblastic leukemia.

Author information

  • 1Division of Hematology and Oncology, Sainte-Justine Hospital, University of Montreal, Quebec, Canada. albert.moghrabi@umontreal.ca

Abstract

The Dana-Farber Cancer Institute (DFCI) Childhood ALL Consortium Protocol 95-01 was designed to minimize therapy-related morbidity for children with newly diagnosed ALL without compromising efficacy. Patients participated in randomized comparisons of (1) doxorubicin given with or without dexrazoxane, a cardioprotectant (high-risk patients), (2) intensive intrathecal chemotherapy and cranial radiation (standard-risk patients), and (3) Erwinia and Escherichia coli asparaginase (all patients). Between 1996 and 2000, 491 patients (aged 0-18 years) were enrolled (272 standard risk and 219 high risk). With a median of 5.7 years of follow-up, the estimated 5-year event-free survival (EFS) for all patients was 82%+/-2%. Dexrazoxane did not have a significant impact on the 5-year EFS of high-risk patients (P=.99), and there was no significant difference in outcome of standard-risk patients based on type of central nervous system (CNS) treatment (P=.26). Compared with E coli asparaginase, Erwinia asparaginase was associated with a lower incidence of toxicity (10% versus 24%), but also an inferior 5-year EFS (78%+/-4% versus 89%+/-3%, P=.01). We conclude that (1) dexrazoxane does not interfere with the antileukemic effect of doxorubicin, (2) intensive intrathecal chemotherapy is as effective as cranial radiation in preventing CNS relapse in standard-risk patients, and (3) once-weekly Erwinia is less toxic than E coli asparaginase, but also less efficacious.

PMID:
17003366
[PubMed - indexed for MEDLINE]
PMCID:
PMC1785142
Free PMC Article

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