A large real-world study of UK health records linked semaglutide, the ingredient in Ozempic and Wegovy, to far fewer asthma attacks and COPD flare-ups, but the benefit did not show up for the other GLP-1 drugs tested

A UK real-world study presented at the 2026 ERS Congress tied semaglutide to nearly 40 percent fewer asthma attacks and 20 percent fewer COPD flare-ups. Here is what it means, and its limits.






