Sandoz Prolia/Xgeva Biosimilar BLA Submitted

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FDA has accepted for filing a Sandoz BLA for a biosimilar version of Amgen’s denosumab (Prolia and Xgeva), which includes all indications for the reference drugs, including osteoporosis in postmenopausal women and in men at increased risk of fractures, treatment-induced bone loss, prevention of skeletal-related complications in cancer that has spread to the bone, giant cell bone tumor, and treating hypercalcemia refractory to bisphosphonate therapy.

The company says the BLA includes a “comprehensive analytical and clinical data package,” and data from the Phase 1/3 ROSALIA study. “Results confirmed that the proposed biosimilar denosumab matches the reference medicine in terms of pharmacokinetics, pharmacodynamics, efficacy, safety and immunogenicity in women with postmenopausal osteoporosis; and contributes to demonstration of similarity, which is the basis for use in all indications,” it says.

The monoclonal antibody is designed to bind to the RANKL protein to decrease the production and activity of osteoclasts, which leads to reduced bone loss/fractures and other serious bone conditions, Sandoz says.

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