09:03 AM EDT, 05/28/2024 (MT Newswires) -- Health care stocks were lower to flat pre-bell Tuesday as the Health Care Select Sector SPDR Fund (XLV) was down 0.2% and iShares Biotechnology ETF (IBB) was flat.

Insmed ( INSM ) shares were surging past 127% after the company said its experimental drug, brensocatib, for the treatment of bronchiectasis, has met the primary endpoint in a late-stage study.