Biologic Makers Expand Indications Across Allergic Disease Categories
Sanofi and Regeneron have expanded Dupixent's approved allergic indications well beyond its original atopic dermatitis and severe asthma use, adding chronic rhinosinusitis with nasal polyps and eosinophilic conditions that share underlying inflammatory pathways. That indication breadth lets a single biologic capture patient value across multiple allergic diagnoses rather than competing in one narrow disease category alone. Novartis and GSK are pursuing comparable indication expansion strategies for their own biologic portfolios, racing to establish first-mover formulary position in each newly approved allergic disease category before competitors catch up. That dynamic is reshaping how allergists evaluate new biologic launches against established options.
Market Impact: Adds 15-20% new diagnosed patients








