Key words High-risk acute myeloid leukemia
Springer Online Journal Archives 1860-2000
Abstract The current phase-II trial was initiated to assess the efficacy and toxicity of the Ida-FLAG regimen in patients with poor-risk acute myeloid leukemia (AML). Three subgroups of patients with AML were eligible for the study: (a) refractory, (b) first relapse, or (c) secondary AML (i.e., signs of trilineage myelodysplasia at diagnosis or the history of a myelodysplasia or myeloproliferative disorder). Fifty-seven fully evaluable patients were included in the study. Twenty patients received a second course of Ida-FLAG. Complete remission was achieved by 1/14 patients with refractory AML, 12/15 patients with relapsed AML, and 17/28 patients with secondary AML. The median duration of ANC 〈1000/μl was 17 days (10–36); of platelets 〈30,000/μl 23 days (9–65); of days with fever 〉38.0 °C 6 days (1–33). Thirteen patients (22.8%) died within 42 days of severe infection or hemorrhage. Overall survival at 20 weeks in the subgroups was 24% for patients with refractory, 78% for patients with relapsed, and 55% for patients with secondary AML. The toxicity of the first cycle of Ida-FLAG is moderate. The feasibility and subjective tolerance of the Ida-FLAG regimen are acceptable. There is no evidence for an increase of atypical infections. The efficacy for patients with secondary AML and especially those with first relapse of AML is good, with a high rate of complete remissions. Remission duration seems to be short. Therefore, an intensified post-remission therapy seems necessary.
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