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Quitting Smoking clinical trials recruiting in the U.S.

74 studies for Quitting Smoking are recruiting participants at sites across the United States.

Quitting smoking is important for your health. Tobacco use is the most common preventable cause of death. Find the best way for you to quit.

Cities with the most studies

• Minneapolis, MN6 studies
• Chicago, IL5 studies
• Charleston, SC5 studies
• San Francisco, CA5 studies
• Oklahoma City, OK4 studies
• Boston, MA3 studies
• Houston, TX3 studies
• New York City, NY3 studies

By state

• California9 studies
• Colorado3 studies
• Florida3 studies
• Illinois6 studies
• Kansas3 studies
• Massachusetts4 studies
• Minnesota7 studies
• Missouri4 studies
• New Jersey3 studies
• New York5 studies
• North Carolina3 studies
• Oklahoma6 studies
• South Carolina5 studies
• Texas6 studies
• Virginia3 studies
• Wisconsin3 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.