Public survey on breath testing for health

This trial studies a simple breath test to detect cancers of the digestive system, including the esophagus, stomach, liver, pancreas, and colon. It is for people who have been referred by their doctor for tests because they have symptoms that might be caused by cancer.

This study is testing a simple breath test (Inflammacheck device) to see if it can measure airway inflammation in people with various lung conditions, including lung cancer, pneumonia, asthma, and COPD, as well as healthy volunteers. It aims to find better ways to diagnose and monitor respiratory diseases using your breath.

This study tests a breath analysis (a sample you give by breathing into a device) to help detect or better understand colorectal cancer. It may help researchers see whether breath results can identify cancer sooner and in people who haven’t started treatment yet.

This study is developing a simple breathing test to check how your lungs are doing if you use drugs or alcohol. You'll have breathing tests and answer some questions about your health and substance use.

This study tests a simple breath test to detect liver cancer and monitor liver health. It is looking for patients with liver cancer, liver cirrhosis, primary sclerosing cholangitis, or people with normal livers to see if the breath test can help tell the difference.

This study tests a special breathalyser (VosCryo) to see if it can detect signs of lung cancer in exhaled breath. If you have advanced lung cancer or are a healthy companion, you may help understand how breath samples can be used for diagnosis or monitoring.