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Celltrion Files IPR and Motion for Joinder Regarding Regeneron’s Eylea® (aflibercept) Patent

Dec 14, 2023

Celltrion filed an inter partes review (IPR) petition challenging Regeneron’s Eylea® aflibercept  patent no. 11,253,572, in IPR proceeding IPR2024-00260.  Celltrion also filed a motion for joinder with Samsung Bioepis’ IPR (IPR2023-00884) of the ‘572 patent which was instituted in November 2023.  The ‘572 patent relates to methods of use of aflibercept in treating angiogenic eye disorders.