Biologic Drugs in Development

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Amgen is once again asking the court to weigh in on a patent infringement case. In March 2017, Sanofi and Regeneron asked a federal court to issue a declaratory judgment of non-infringement indicating that their drug Dupixent (dupilumab) does not infringe on Amgen’s ‘487 patent covering IL-4 inhibitors. Although the court has not yet responded to this request, in early April 2017 Amgen issued a complaint of patent infringement against Sanofi/Regeneron involving the same ‘487 patent.