Successful Treatment with Imatinib Mesylate in a Case of Minor BCR-ABL-Positive Acute Myelogenous Leukemia

  • Katsuro Ito
  • Kazunori Tominaga
  • Toshiya Suzuki
  • Itsuro Jinnai
  • Masami Bessho
Case Report


Philadelphia (Ph) chromosome-positive acute myelogenous leukemia (AML) is a rare disease that is resistant to conventional antitumor chemotherapy and has a poor prognosis. We describe a case of Ph chromosome-positive AML in which imatinib mesylate was used and a favorable outcome was obtained. A 64-year-old man was found to have Ph chromosome-positive, minor BCR-ABL-positive AML. Remission could not be induced by remission induction therapy with antitumor agents. Because the patient had a serious concomitant infectious disease, administration of 600 mg/day of imatinib mesylate, a specific inhibitor of BCR-ABL tyrosine kinase, was started after written informed consent was obtained. Complete cytogenetic response (CCR) was achieved without serious adverse events and persisted for more than 1 year. Our results suggested that imatinib mesylate was very useful for treating Ph chromosome-positive AML.

Key words

Imatinib mesylate Minor BCR-ABL AML 


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Copyright information

© The Japanese Society of Hematology 2005

Authors and Affiliations

  • Katsuro Ito
    • 1
  • Kazunori Tominaga
    • 1
  • Toshiya Suzuki
    • 1
  • Itsuro Jinnai
    • 2
  • Masami Bessho
    • 2
  1. 1.Ogawa Red Cross HospitalSaitamaJapan
  2. 2.First Department of Internal MedicineSaitama Medical SchoolSaitamaJapan

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