Oral Idarubicin and Low Dose Cytarabine as the Initial Treatment of Acute Myeloid Leukemia in Elderly Patients

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Abstract
Idarubicin (IDR) is an anthracycline that can be administered orally. Low dose cytarabine (LDARAC) has been commonly used in the treatment of acute myeloid leukemia (AML) in elderly patients. A comination of oral IDR (20 mg/m(2) for 3 days) and LDARAC (10 mg/m(2) q12 hours for 10 days) was given in 32 patients aged 65 to 82 years (median 76) with de novo AML. Eight patients whose marrow remained blastic by day 20 received a second course (IDR for 2 days and LDARAC for 5 days). Complete remission (CR) was achieved in 13 cases (40.5%), (one course 12, two courses 1). There was 1 early death, 3 deaths in aplasia, 2 partial remissions and 13 failures. All but 5 patients were entirely managed in hospital. The median duration of neutropenia was 18 days and only 1 patient obtained CR without therapeutic aplasia. The extrahematologic toxicity was mild with 3 reversible cardiac events. These results are comparable to those obtained with conventional chemotherapy and this regimen could be proposed as induction treatment of AML in elderly patients.