Implementation of management guidelines for chronic myeloidl leukemia perspectives in the United States
Clinical practice guidelines are developed to improve the quality of care and outcomes for patients. Guidelines facilitate clinical decisions, promote efficient use of health care resources, and provide guidance to practitioners. For chronic myeloid leukemia (CML), tyrosine kinase inhibitors (TKIs) have changed the paradigm of therapy by lowering the disease burden and by providing more precise monitoring of response. These advances affect treatment guidelines for CML and inform CML clinical trial protocols. Guidelines developed by the National Comprehensive Cancer Network (NCCN) and European LeukemiaNet (ELN) synthesize the best available evidence to support decision-making in the management of CML patients. Both guidelines recognize specific milestones for treatment response. At each time point, the ELN guidelines define overall response benchmarks, and the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) provide an algorithm that specifies the timing for evaluations of cytogenetic and molecular parameters during therapy. The NCCN Guidelines also include strategies for providing supportive care and for managing toxicities. Molecular monitoring now plays a greater role in CML management. Molecular response as a milestone is currently recommended by the ELN but has not yet been adopted by the NCCN. As evidence continues to accumulate, the NCCN and ELN Guidelines are likely to evolve to reflect new data and standards of care.
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