PMID: 8950336Jan 1, 1997Paper

Modified BFM protocol for childhood acute lymphoblastic leukemia: a retrospective analysis

Medical and Pediatric Oncology
Z AzizS Maqbool

Abstract

Childhood acute lymphoblastic leukemia (ALL) has a 5-year disease-free survival (DFS) of more than 70%. This fact is not reflected in developing countries due to the lack of proper supportive care. A modified version of the standard Berlin-Frankfurt-Munich (BFM) protocol for pediatric ALL was developed to achieve balance between toxicity and favorable response rates. Modification included a dose reduction of asparaginase and methotrexate during the consolidation and reinduction phase. Forty-two patients younger than 15 years of age were put on the modified BFM protocol between November 1990 and November 1993. Thirty-nine patients were 2-10 years of age and 3 were older than 10 years. Male to female ratio was 3.2:1. 71.4% had L1 and 28.6% had L2 morphology. Univariate analysis factors revealed central nervous system (CNS) involvement and late complete remission (CR) during induction as poor prognostic factors. In multivariate analysis, CNS disease (P < 0.0083) was the only prognostic variable for prolonged DFS. All patients went into CR. Eleven patients have relapsed. Life table analysis of these patients shows a 59.4% probability of overall survival (OS) and a 52.5% probability of DFS at 48 months.

References

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