Volume 124, Issue 4 pp. 474-480

Granulocyte-macrophage colony-stimulating factor to increase efficacy of mitoxantrone, etoposide and cytarabine in previously untreated elderly patients with acute myeloid leukaemia: a Swedish multicentre randomized trial

C. Löfgren

C. Löfgren

Huddinge University Hospital, Stockholm

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C. Paul

C. Paul

Huddinge University Hospital, Stockholm

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M. Åström

M. Åström

Örebro University Hospital, Stockholm

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R. Hast

R. Hast

Karolinska Hospital, Stockholm

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M. Hedenius

M. Hedenius

Sundsvall Hospital, Stockholm

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R. Lerner

R. Lerner

Huddinge University Hospital, Stockholm

Södersjukhuset, Stockholm

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J. Liliemark

J. Liliemark

Karolinska Hospital, Stockholm

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I. Nilsson

I. Nilsson

Karlstad Hospital, Stockholm

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S. Rödjer

S. Rödjer

Östra Sjukhuset, Gothenburg

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B. Simonsson

B. Simonsson

Uppsala Academic Hospital, Stockholm

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D. Stockelberg

D. Stockelberg

Sahlgrens’ Hospital, Stockholm, Sweden

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U. Tidefelt

U. Tidefelt

Örebro University Hospital, Stockholm

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M. Björkholm

M. Björkholm

Karolinska Hospital, Stockholm

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First published: 20 January 2004
Citations: 24
Christina Löfgren, Department of Hematology, M 54 Huddinge University Hospital, SE 141 86 Stockholm, Sweden.
E-mail: [email protected]

Summary

A total of 110 patients, aged 64 years or over, with de novo acute myeloid leukaemia (AML) and white blood cell counts <50 × 109/l were treated with 3 d of cytarabine 1 g/m2 twice daily, mitoxantrone 12 mg/m2 and etoposide 200 mg/m2, randomized with or without the addition of granulocyte-macrophage colony-stimulating factor (GM-CSF) 200 μg/m2. The primary aim was to evaluate the effect of GM-CSF on the remission rate. Secondary aims included comparison of duration of remission, survival and infectious complications and the impact of maintenance therapy with thioguanine. Complete remission (CR) was achieved by 64% of patients without GM-CSF, and by 65% of patients who received GM-CSF, the median remission duration was 13 vs. 6 months, the median overall survival (OS) was 14 vs. 9 months, the mean time to neutrophil recovery was 25 vs. 17 d (P = 0·03) and the number of positive blood cultures was 46 vs. 39 (P = 0·05) respectively. The impact of thioguanine remains unanswered since only 30 patients remained in CR after consolidation therapy. We conclude that induction therapy is feasible with acceptable toxicity in elderly patients with AML, albeit with a high relapse rate and short OS. GM-CSF prior to, and in combination with, induction treatment reduced the time to neutrophil recovery and the number of neutropenic septicaemia cases but did not improve the OS of AML in the elderly.

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