BUSINESS

Daiichi Sankyo Wins US Appeal in Seagen ADC Patent Dispute

December 4, 2025
Daiichi Sankyo on December 3 said it has prevailed on appeal in a US patent infringement suit filed by Seagen over its anti-HER2 antibody drug conjugate (ADC) Enhertu (trastuzumab deruxtecan). The company said the US Court of Appeals for the…

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