The battle over the proper forum for patent infringement litigation regarding Dupixent® (Dupilumab) appears to have been resolved. Last week, on May 1, 2017, Sanofi, Genzyme, and Regeneron voluntarily dismissed their Declaratory Judgment Complaint in the District of Massachusetts (Civ. No. 17-cv-10465). The dismissal, however, does not resolve the underlying patent infringement dispute, which is






