Biosimilar competition to Amgen Inc.’s denosumab (Prolia/Xgeva) is rising globally, with Mabwell (Shanghai) Bioscience Co. Ltd. gaining the latest China NMPA approval of Maiweijian (TK-006) on April 8. Mabwell’s wholly owned subsidiary, Jiangsu T-mab Biopharma Co. Ltd., gained NMPA clearance of Maiweijian (120 mg) as the first denosumab biosimilar for the indications of U.S.-licensed Xgeva for bone-related diseases.

The EMA’s Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion recommending approval of Pfizer Inc.’s Emblaveo (aztreonam-avibactam), an antibiotic combination that would offer a new option to patients with serious bacterial infections caused by multidrug-resistant gram-negative bacteria.

The EMA’s Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion recommending approval of Pfizer Inc.’s Emblaveo (aztreonam-avibactam), an antibiotic combination that would offer a new option to patients with serious bacterial infections caused by multidrug-resistant gram-negative bacteria. If approved, Emblaveo would be among the first beta-lactam/beta-lactamase inhibitor combos cleared for use in Europe.

The biosimilars revolution continues with the U.S. FDA’s approval of the first denosumab biosimilars: Wyost (denosumab-bbdz) and Jubbonti (denosumab-bbdz) from Sandoz Inc. for treating osteoporosis and to prevent bone problems in cancer. The approval puts up a strong challenge to Amgen Inc.’s Prolia, the first biologic for osteoporosis, and Xgeva, for bone cancer.

The skeleton undergoes continuous remodeling throughout life in response to diverse environmental stimuli. Osteoclasts, which are specialized cells on the bone surface, break down old bone tissue (in a process known as bone resorption) and build it back up. Dysregulation of osteoclast formation and function can lead to bone fragility, including osteoporosis, which is estimated to affect over 10 million people globally.