National Jewish Health

This study is testing whether a breathing test called the lung clearance index (LCI) can detect small airways disease in adults with chronic lung conditions like asthma or fibrosis. Researchers will compare results from 300 patients with lung disease to 300 healthy volunteers. Th…

This study is looking for markers in the blood that can predict whether a person's chronic hypersensitivity pneumonitis will get worse over time. Researchers will follow about 137 patients at 7 U.S. centers for 24 months, tracking lung function, symptoms, and CT scans. The goal i…