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Leuk Lymphoma. 2001 Nov-Dec;42(6):1283-8.

Dose escalation of ara-c may improve response rates in a subgroup of chronic myeloid leukemia patients with poor response to interferon-alpha and low-dose ara-C.

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1
Department of Internal Medicine, University Hospital, Innsbruck, Austria.

Abstract

The present analysis was performed to evaluate the impact of cytosine arabinoside (ara-C) dose escalation on hematological and cytogenetic responses in patients with chronic myelogenous leukemia (CML) who failed to respond to low-dose ara-C (LD ara-C) at a dose of 10 mg/m2/d over 10 days per month and interferon-alpha (IFNalpha, 3.5 MU/d). Following the same administration schedule, dose escalation of ara-C to 15 and 20 mg/m2/d 1-10 was performed in 36 of 119 patients (30%) due to inadequate hematological response and/or disease progression. As a result, improvement of hematological and cytogenetic responses was achieved in 22 (61%) and nine (25%) patients, respectively. Escalated ara-C dose levels were usually well tolerated, although some patients experienced deterioration of preexisting side effects. Our results support the critical role of ara-C dose towards a better disease control in CML.

PMID:
11911409
DOI:
10.3109/10428190109097753
[Indexed for MEDLINE]

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