Second chance frost: testing repeat lung freeze for Smoker's cough
Disease control
Not yet recruiting
This study aims to check if it's safe to give patients a second round of a special 'freeze spray' treatment for their COPD and chronic bronchitis. It's for 10 people who have already received this treatment in a previous study. Doctors will give two more treatment sessions about …
Phase: NA • Sponsor: CSA Medical, Inc. • Aim: Disease control
Last updated Mar 23, 2026 15:15 UTC