Home › Breathing Problems

Breathing Problems clinical trials recruiting in the U.S.

19 studies for Breathing Problems are recruiting participants at sites across the United States.

When you have breathing problems, such as shortness of breath, it's hard for you to take in the oxygen your body needs. Find out what can cause this.

By state

• California4 studies
• New Jersey4 studies
• North Carolina3 studies

Recently updated studies

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.