Alnylam Drops COVID-19 Vaccine Patent Suit Against Pfizer, BioNTech

May 15, 2025

Reuters Legal (5/14, Brittain) reports Alnylam Pharmaceuticals on Tuesday “conceded defeat for now in a lawsuit against Pfizer and BioNTech over technology in their COVID-19 vaccine, asking a Delaware federal court on Tuesday to enter a judgment that they did not infringe Alnylam’s patents.” The move comes after US District Judge Colm Connolly “interpreted the company’s patents in a way that would not cover Pfizer and BioNTech’s vaccine. The company dropped a separate lawsuit over Moderna’s COVID-19 shots following a similar ruling favoring Moderna last year.” An Alnylam spokesperson “said the company was evaluating its options and may appeal.”