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This study aimed to explore the therapeutic efficacy and safety of alfacalcidol among Chinese postmenopausal women (age >65 years) with osteoporosis or osteopenia.A total of 62 postmenopausal women with osteoporosis or osteopenia (>65 years) were recruited from urban residential community of Beijing. The patients daily took oral calcium and alfacalcidol (Alpha D3, 1 μg) for 9 months. Safety and efficacy assessments were performed at baseline and regular intervals. Alfacalcidol was adjusted to a daily dose of 0.5 μg in case of hypercalcemia or hypercalciuria.A significant improvement in "timed up and go test" and "chair rising test" was achieved 3 months after treatment. Significant decreases in bone turnover markers were observed 3 months after the treatment and lasted throughout the study. Nineteen patients discontinued due to adverse events (17 hypercalciuria, 1 hydronephrosis, and 1 stomach ache), while alfacalcidol was adjusted to a daily dose of 0.5 μg in 18 patients (29.0%). Increased serum creatinine was observed when compared to baseline (P <.001), but all the values were in normal range.The treatment with 1 μg alfacalcidol can significantly improve muscle function and bone metabolism. Regular monitoring of urine calcium and timely dosage-adjustments are very important to guarantee the safety of alfacalcidol treatment in Chinese menopausal women.

Efficacy and safety of alfacalcidol in Chinese postmenopausal women aged over 65 with osteoporosis or osteopenia