08:52 AM EDT, 03/17/2025 (MT Newswires) -- Health care stocks declined premarket Monday with the Health Care Select Sector SPDR Fund (XLV) and iShares Biotechnology ETF (IBB) down 0.4% recently.

Avidity Biosciences Inc ( RNA ) shares advanced by more than 3% after the company said topline data from a phase 1/2 trial of del-zota to treat Duchenne muscular dystrophy showed "consistent, statistically significant improvements in dystrophin, exon skipping and creatine kinase."