08:54 AM EDT, 05/30/2025 (MT Newswires) -- Health care stocks were falling pre-bell Friday as the Health Care Select Sector SPDR Fund (XLV) was down 0.4% and the was iShares Biotechnology ETF (IBB) 1.3% lower recently.

Sanofi ( SNY ) and Regeneron Pharmaceuticals (REGN) said one of the phase 3 trials of itepekimab in adults who were former smokers with inadequately controlled chronic obstructive pulmonary disease, or COPD, met its primary endpoint while another did not meet the same primary endpoint. Shares of Sanofi ( SNY ) were down more than 5% while Regeneron shares were more than 12% lower premarket.