To the Editor: The tyrosine kinase inhibitor imatinib mesylatespecifically inhibits the BCR-ABL kinase, and has shown promisingresults in phase 1 and 2 trials in patients with chronic myelogenousleukemia at various stages of the disease.1,2 We describe apatient in whom a complete molecular response was achieved withno evidence of BCR-ABL messenger RNA (mRNA) six months aftertreatment with imatinib began.
A 58-year-old man with Philadelphia chromosome (Ph)positivechronic myelogenous leukemia in chronic phase was initiallytreated with interferon alfa followed by intensive chemotherapyplus granulocyte colony-stimulating factor, which allowed thesuccessful collection of Ph-negative blood stem . . . [Full Text of this Article]
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