Chronic Myelogenous Leukemia Treatment (Professional) (cont.)
IN THIS ARTICLE
Accelerated-Phase Chronic Myelogenous Leukemia
Treatment Options for Accelerated-Phase Chronic Myelogenous Leukemia (CML)
Patients with accelerated-phase CML show signs of progression without meeting the criteria for blast crisis (acute leukemia). Symptoms and findings include the following:
Bone marrow examination shows increasing blast cell percentage (but =30%) and basophilia. Additional cytogenetic abnormalities occur during the accelerated phase (trisomy 8, trisomy 19, isochromosome 17Q, p53 mutations or deletions), and the combination of hematologic progression plus additional cytogenetic abnormalities predicts for lower response rates and a shorter time-to-treatment failure on imatinib mesylate. At 1 year after the start of imatinib, the failure rate is 68% for patients with both hematologic progression and cytogenetic abnormalities, 31% for patients with only hematologic progression, and 0% for patients with cytogenetic abnormalities only. Before the availability of imatinib, the median survival time of accelerated-phase CML patients was less than 1 year.
Current Clinical Trials
Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with accelerated phase chronic myelogenous leukemia. The list of clinical trials can be further narrowed by location, drug, intervention, and other criteria.
General information about clinical trials is also available from the NCI Web site.
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