Abstract
We report results achieved in our institution with a study opened in July 1990 (similar to the German AML-BFM-87 in which daunorubicin was replaced by idarubicin in the induction phase and cranial preventive radiotherapy was omitted) and closed in December 1994, for the treatment of newly diagnosed acute myeloblastic leukemia (AML), without prior malignancies except for myelodysplasia. This evaluation included 68 patients, whose mean age was 6 years (range: 1 month–16 years). Thirty-nine were boys and 29 were girls. Complete remission rate was 80.9% ( 55 68 ), death on induction rate was 14.7% and induction failure rate was 4.4%. At median follow up of 38 months (range: 12–66 months), the 4-year event-free survival (EFS) estimate was 0.428 (S.E.: 0.062), event-free interval (EFI) estimate was 0.529 (S.E.: 0.07) and overall survival (OS) estimate was 0.44 (S.E.: 0.071). We conclude that idarubicin in combination with cytarabine and etoposide is a highly effective regimen for induction in children with AML. Although preventive cranial irradiation was not delivered, we have observed only one combined CNS relapse. Finally, we corroborate that in this setting two definite risk groups may be identified in children with AML.
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