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Post-remission therapy in acute myeloblastic leukemia. A randomized trial comparing early consolidation plus
J Maldonado1, S Gardella, J M Rodriguez Fernandez
1Servicio de Coordinación Oncológica, Hospital Clinic i Provincial, Barcelona, Spain.
Abstract:
During a 5-year period 203 previously untreated patients with acute myeloblastic leukemia entered an intensive induction chemotherapy regimen with daunorubicin, cytosine arabinoside, 6-thioguanine, vincristine and prednisone (DATOP). The complete remission rate was 64%. Patients in complete remission were randomly assigned to 3 courses of early consolidation with DATOP at lower dosage followed by maintenance chemotherapy, or to the same maintenance regimen in the absence of any consolidation courses. No significant differences were found between these options concerning disease-free survival (median 7.0 vs. 9.8 months; p greater than 0.10) or survival (median 15.8 vs. 19.4 months; p greater than 0.10). This study, in addition to the few previously reported randomized trials, suggests that early low-dose consolidation adds no benefit to maintenance chemotherapy in acute myeloblastic leukemia once complete remission has been achieved.
