Amgen, UCB File BLA for Romosozumab

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Amgen and UCB have filed a BLA for romosozumab, an investigational monoclonal antibody for treating osteoporosis in postmenopausal women who have increased fracture risks. “Romosozumab works by binding and inhibiting sclerostin, a protein naturally occurring in the bone, thereby increasing bone formation and decreasing bone resorption,” the companies say.

The submission is based on data from a pivotal Phase 3 placebo-controlled Fracture Study In Postmenopausal Women With Osteoporosis (FRAME) in about 7,200 patients. The study evaluated romosozumab compared with placebo in reducing the risk of new vertebral fractures through 12 months. It further evaluated romosozumab treatment for 12 months followed by denosumab treatment for 12 months, compared with placebo followed by denosumab treatment, finding the former effective in reducing the risk of new vertebral fractures through 24 months. Amgen and UCB plan to present results from the FRAME clinical trial at an upcoming medical congress.

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