Bristol Myers Squibb and Ono Pharmaceutical are challenging Amgen's proposed Opdivo biosimilar through a lawsuit, alleging patent infringement. The legal action comes as the FDA's decision on the biosimilar's approval approaches, creating uncertainty in the oncology market.
BMS, Ono Sue Amgen Over Opdivo Biosimilar Ahead of FDA Decision
BMYAMGNPharmaceuticalsPatent DisputeFDA Regulation



