PURPOSE: Luteinizing hormone-releasing hormone agonists are the most common form of androgen deprivation therapy in men with prostate cancer. Limited data exist regarding physician decision-making in prescribing luteinizing hormone-releasing hormone agonists. We present an analysis of luteinizing hormone-releasing hormone agonist use trends based on a time matched comparison of data from Medicare and the Veterans Health Administration, a health care system unaffected by recent changes in Medicare reimbursement implemented by the Medicare Modernization Act in 2004. MATERIALS AND METHODS: Medicare claims and payment data were obtained from the Centers for Medicare and Medicaid Services from 2003 to 2007 for luteinizing hormone-releasing hormone agonists and for simple orchiectomy. The Veterans Health Administration Pharmacy Benefits Management database was queried for the annual number of prescriptions for luteinizing hormone-releasing hormone agonists during the same period. RESULTS: After implementation of the Medicare Prescription Drug, Improvement and Modernization Act in 2004 the reimbursement of luteinizing hormone-releasing hormone agonists in the Medicare population decreased by 54.8% and annual claims decreased by 25.1% from 2004 to 2007. During the same period luteinizing hormone-releasing hormone agonist use decreased by 16.8% in the Veterans Health Administration population. There was no compensatory increase in the use of simple orchiectomy for androgen deprivation therapy during the study period. CONCLUSIONS: Use of luteinizing hormone-releasing hormone agonists has decreased in the Medicare and Veterans Health Administration populations since 2004 without a compensatory increase in the use of alternative forms of androgen deprivation therapy. The shift in practice patterns is likely due to a decrease in Medicare reimbursement for these drugs, an increase in the use of intermittent therapy and increased recognition of the adverse effects associated with androgen deprivation therapy.
PURPOSE: Luteinizing hormone-releasing hormone agonists are the most common form of androgen deprivation therapy in men with prostate cancer. Limited data exist regarding physician decision-making in prescribing luteinizing hormone-releasing hormone agonists. We present an analysis of luteinizing hormone-releasing hormone agonist use trends based on a time matched comparison of data from Medicare and the Veterans Health Administration, a health care system unaffected by recent changes in Medicare reimbursement implemented by the Medicare Modernization Act in 2004. MATERIALS AND METHODS: Medicare claims and payment data were obtained from the Centers for Medicare and Medicaid Services from 2003 to 2007 for luteinizing hormone-releasing hormone agonists and for simple orchiectomy. The Veterans Health Administration Pharmacy Benefits Management database was queried for the annual number of prescriptions for luteinizing hormone-releasing hormone agonists during the same period. RESULTS: After implementation of the Medicare Prescription Drug, Improvement and Modernization Act in 2004 the reimbursement of luteinizing hormone-releasing hormone agonists in the Medicare population decreased by 54.8% and annual claims decreased by 25.1% from 2004 to 2007. During the same period luteinizing hormone-releasing hormone agonist use decreased by 16.8% in the Veterans Health Administration population. There was no compensatory increase in the use of simple orchiectomy for androgen deprivation therapy during the study period. CONCLUSIONS: Use of luteinizing hormone-releasing hormone agonists has decreased in the Medicare and Veterans Health Administration populations since 2004 without a compensatory increase in the use of alternative forms of androgen deprivation therapy. The shift in practice patterns is likely due to a decrease in Medicare reimbursement for these drugs, an increase in the use of intermittent therapy and increased recognition of the adverse effects associated with androgen deprivation therapy.
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