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News 2026-09-15 17:29 UTC

Bristol Myers sues Amgen over proposed Opdivo biosimilar

By Blake BrittainBristol Myers Squibb NYSE:BMY and Ono Pharmaceutical TSE:4528 have sued Amgen NASDAQ:AMGN in Delaware federal court, seeking to block Amgen's proposed U.S. biosimilar of their blockbuster cancer immunotherapy drug Opdivo.The case is Bristol-Myers Squibb Co. v. Amgen Inc., U.S. Dist…