A New Active Vitamin D, ED-71 for Osteoporosis

Inclusion Criteria: * Osteoporotic patients who meet any of the following condition: 1. with at least one fragility fracture, 2. above 70 year-old with bone mineral density below 70% young adult mean, 3. with bone mineral density below 60% young adult mean * Women three years or more after menopause or men Exclusion Criteria: * Current disorders such as primary hyperparathyroidism, Cushing's syndrome,gonadal insufficiency, poorly controlled diabetes mellitus or other causes of secondary osteoporosis * A history or suspicion of active urolithiasis at any time * Use of bisphosphonates in the past 12 months * Use of medications known to affect bone in the past 2 months * Abnormal serum calcium, urinary calcium, serum creatinine or liver function tests