FDA Approves Amgen sBLA for Xgeva
FDA has approved an Amgen supplemental BLA for Xgeva (denosumab) to expand the currently approved indication for the prevention of skeletal-related events (SREs) in patients with bone metastases from solid tumors to include patients with multiple myeloma. The approval is based on data from a Phase 3 study that enrolled 1,718 patients.
The study met the primary endpoint, demonstrating non-inferiority to zoledronic acid in delaying the time to first on-study skeletal-related event in patients with multiple myeloma, according to the company. Secondary endpoints, delaying time to first skeletal-related event and delaying time to first-and-subsequent SREs, did not demonstrate superiority. Overall survival was comparable between Xgeva and zoledronic acid, it says.
Xgeva is a human monoclonal antibody that binds to and neutralizes RANK ligand, “a protein essential for the formation, function and survival of osteoclasts, which break down bone — thereby inhibiting osteoclast-mediated bone destruction,” Amgen says. Xgeva is currently indicated for the prevention of SREs in patients with bone metastases from solid tumors based on results from three previous pivotal Phase 3 head-to-head studies.
XGEVA was originally approved by FDA in 2010 for preventing SREs in patients with bone metastases from solid tumors. In 2013, it was approved for adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity.