Sanofi, Regeneron's IL-33 Drug Fails One of Two COPD Studies, Casting Doubt on FDA Approval Timeline on May 30, 2025 AERIFY-1 AERIFY-2 Approved Clinical Trials COPD IL33 protein, human itepekimab Regeneron sanofi United States Food and Drug Administration +
Sanofi, Regeneron's IL-33 Drug Fails One of Two COPD Studies, Casting Doubt on FDA Approval Timeline on May 30, 2025 AERIFY-1 AERIFY-2 Approved Clinical Trials COPD IL33 protein, human itepekimab Regeneron sanofi United States Food and Drug Administration +