Loading...
Blocking sclerostin (an osteocyte-derived negative regulator of bone formation) increases bone formation and reduces bone resorption. In a previous study, treatment of postmenopausal women with low bone mass with romosozumab, a humanized anti-sclerostin antibody, increased bone mineral density (BMD) more than alendronate or teriparatide after 1 year (NEJM JW Womens Health Feb 2014 and N Engl J Med 2014; 370:412). Now, in a manufacturer funded phase III study, 7180 postmenopausal women with osteoporosis were randomized to monthly subcutaneous romosozumab (210 mg) or placebo for 1 year followed by open-label subcutaneous denosumab (60 mg) every 6 months for an additional year.
At 12 months, incidence of new vertebral fractures in the romosozum…