Phase II-Trial of Double-Consolidation Following Intensive Induction Treatment for Improvement of Survival in Elderly Patients with Acute Myeloid Leukemia

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Abstract
Thirty-two consecutive, unselected acute myeloid leukemia (AML) patients (pts) of all FAB-subtypes with a median age of 68 years were treated with intensive induction chemotherapy consisting of one or two cycles of daunorubicin 30 mg/m2 day 1–3 and Ara C 100 mg/m2 as continuous infusion day 1–7. The overall CR rate was 50%, 14/24 (58%) in de novo AML, and 2/8 (25%) with preceding MDS. One patient achieved a PR of 21 months duration, 3 pts died within 7 days of the induction treatment (ED), 6 died during hypoplasia (HD), and 6 remained refractory to 2 cycles of induction. Four pts died after achieving CR. Of the remaining 12 responders, 11 pts received 2 cycles of consolidation consisting of daunorubicin 30 mg/m2 day 1, and Ara C 100 mg/m2 continuous IV infusion day 1–7. No deaths were observed during consolidation. DFS and survival of responders were 7 and 13 months respectively, survival of all pts, responders and non-responders, was 7 months. Large cooperative trials are necessary to identify those elderly pts who may benefit from intensified consolidation treatment.