Abstract
Imatinib mesylate, an inhibitor of BCR/ABL tyrosine kinase, has remarkable activity in chronic myeloid leukemia resulting in an 87% major cytogenetic response. We describe a woman who failed to achieve any cytogenetic response after 2.5 years of imatinib, 400mg daily. When daily sargramostim (GM-CSF) 100 microg/m2 was added, cytogenetic studies revealed a gradual increase in percentage of normal cells from start, 4, 9, and 15 months at 0%, 10%, 55%, and 85%, respectively. She became transfusion independent after starting GM-CSF. The addition of GM-CSF to imatinib resulted in a clinical benefit and a major cytogenetic response in this patient.
Publication types
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Case Reports
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Research Support, Non-U.S. Gov't
MeSH terms
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Antineoplastic Agents
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Benzamides
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Biopsy
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Bone Marrow / pathology
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Female
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Fusion Proteins, bcr-abl / antagonists & inhibitors
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Granulocyte-Macrophage Colony-Stimulating Factor / therapeutic use*
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Humans
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Imatinib Mesylate
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / drug therapy*
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / genetics
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Philadelphia Chromosome
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Piperazines / therapeutic use*
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Pyrimidines / therapeutic use*
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Recombinant Proteins
Substances
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Antineoplastic Agents
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Benzamides
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Piperazines
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Pyrimidines
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Recombinant Proteins
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sargramostim
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Granulocyte-Macrophage Colony-Stimulating Factor
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Imatinib Mesylate
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Fusion Proteins, bcr-abl