PMID: 9436939Jan 22, 1998Paper

A phase I/II study of idarubicin, dexamethasone and interferon-alpha (I-Dexa) in patients with relapsed or refractory multiple myeloma

Leukemia
K HübelA Engert

Abstract

To improve the outcome for patients with relapsed or refractory multiple myeloma (MM), we combined idarubicin (Ida), dexamethasone and interferon (IFN) in a new regimen, 'I-Dexa'. Here we report our results of a phase I/II study using the I-Dexa protocol in an outpatient setting. A total of 31 patients were enrolled. Most patients were heavily pretreated with a median of two different chemotherapy regimen (range, 1-4). All but four patients had advanced disease (stage III). The dose of Ida was escalated to define the maximal tolerated dose (MTD) in this regimen. Four patients were treated with 5 mg/m2 and 27 patients with 7.5 mg/m2 Ida (day 1, i.v.). Dexamethasone was given at a fixed dose of 20 mg per os daily on days 2-5 and 11-14. Treatment was repeated at day 21 and consisted of up to six cycles. Patients who achieved a response or stable disease received IFN maintenance. IFN was administered three times weekly at a dose of 3 x 10(6) U/day s.c. until relapse. At the time of evaluation, 125 courses of I-Dexa were analyzed. The MTD of Ida in this regimen was 7.5 mg/m2. Hematological toxicity was mild including 5% leukocytopenia, 3% thrombocytopenia and 1% anemia (WHO grade III) at dose level 2. The MTD was defined by nonhemat...Continue Reading

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