09:19 AM EDT, 05/28/2025 (MT Newswires) -- Health care stocks were edging higher premarket Wednesday with the Health Care Select Sector SPDR Fund ( XLV ) up 0.1% and the iShares Biotechnology ETF (IBB) recently advancing by 0.2%.

Phreesia ( PHR ) shares were up more than 3% after the company reported a narrower fiscal Q1 net loss as revenue increased year-over-year.

Spero Therapeutics ( SPRO ) shares were surging by more than 219% after the company and GSK (GSK) said a phase 3 trial of tebipenem HBr, an investigational oral antibiotic for complicated urinary tract infections, including pyelonephritis, met its primary endpoint and will end early due to efficacy.

InflaRx ( IFRX ) shares fell by more than 55% after the company said it plans to discontinue further development of vilobelimab for the treatment of pyoderma gangrenosum, a rare and inflammatory skin disease.