Long-Term Follow-Up of Patients on Drug Holiday from Bisphosphonates: Real-World Setting
2013
Objective: Atypical femoral fractures and osteoporosis of the jaw have been associated with prolonged bisphosphonate therapy for postmenopausal osteoporosis. American Association of Clinical Endocrinologists guidelines suggest a drug holiday after 4 to 5 years of bisphosphonate treatment for moderate-risk patients and 10 years for high-risk patients, but there are minimal data on safe holiday durations. A recent U. S. Food and Drug Administration perspective suggests a treatment duration of 3 to 5 years. Our aim was to describe a group of patients on drug holiday and identify fracture risk.Methods: A retrospective chart review was conducted of 209 patients who started a bisphosphonate drug holiday between 2005 and 2010. Collected data included bone mineral density (BMD), markers of bone turnover, vitamin D status, and clinical and radiographic reports of fractures.Results: Eleven of 209 patients (5.2%) developed a fracture. Their mean age was 69.36 years (±15.58), and the mean lumbar spine and femoral nec...
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