Sanofi, Regeneron's IL-33 drug fails one of 2 COPD studies as FDA timeline thrown in doubt

Sanofi’s plans to submit itepekimab to regulators for approval this year have been thrown into doubt after the Regeneron-partnered drug failed one of a pair of phase 3 COPD trials.

May 30, 2025 - 13:30
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Sanofi, Regeneron's IL-33 drug fails one of 2 COPD studies as FDA timeline thrown in doubt
Sanofi’s plans to submit itepekimab to regulators for approval this year have been thrown into doubt after the Regeneron-partnered drug failed one of a pair of phase 3 COPD trials.