On November 17, 2025 Formycon AG (“Formycon”) announced development of a dupilumab biosimilar, FYB208, referencing Regeneron and Sanofi’s DUPIXENT. Dupilumab is a monoclonal antibody therapy designed to treat immunological disease by blocking interleukin 4 and interleukin 13 receptor signaling-induced type 2 inflammation. DUPIXENT is approved for the treatment of asthma,…
On November 11, 2025, Sanofi and Regeneron announced that the FDA accepted for priority review its supplemental biologics license application (“sBLA”) for Dupixent (dupilumab) in the treatment of adults and children aged 6 years and older with allergic fungal rhinosinusitis (“AFRS”), with a target action date of February 28, 2026….
On June 9, 2025, biosimilar manufacturers Samsung Bioepis and Alvotech announced separate deals to expand their respective offerings in Japan and Europe. Samsung Bioepis announced a licensing, development, and commercialization agreement with NIPRO Corporation for multiple biosimilar candidates in Japan. One of these candidates is SB17, a biosimilar of Janssen’s…
Last week, Regeneron Pharmaceuticals, Inc. and Sanofi announced that the FDA has accepted a Priority Review of the supplemental Biologics License Application (sBLA) for DUPIXENT (dupilumab) 300 mg weekly to treat patients aged 12 years and older with eosinophilic esophagitis (EoE). EoE is a chronic, immune-mediated, atopic inflammatory condition of…
Following up on our previous coverage of Immunex’s patent infringement suit against Sanofi related to Immunex’s Dupixent® (dupilumab) biologic, Judge Otero recently denied Sanofi’s motion for summary judgement of invalidity based on indefiniteness of the claim terms “competes” and “binding affinity (Ka).” Sanofi criticized Immunex’s ’487 patent for failing to…