Biogen files natalizumab (Tysabri®) BPCIA case against Sandoz/Polpharma in Delaware

Sep 9, 2022

Biogen filed a sealed complaint against Sandoz and Polpharma for infringement of 28 Biogen patents in the District of Delaware relating to Sandoz’s biosimilar natalizumab (Tysabri®).  Whilst the complaint was accepted under seal, Biogen was ordered to file a redacted complaint by 19 September 2022. Sandoz and Polpharma announced that they had entered into a licensing deal for Polpharma’s natalizumab biosimilar in September 2019, and the FDA accepted Sandoz’s ABLA for biosimilar natalizumab in July 2022.

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