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Smoking and Youth clinical trials recruiting in the U.S.

75 studies for Smoking and Youth are recruiting participants at sites across the United States.

The younger you are when you start smoking, the more health problems it can cause. Know the risks of smoking cigarettes for people under age 21.

Cities with the most studies

• Atlanta, GA6 studies
• Houston, TX6 studies
• Charleston, SC5 studies
• New York City, NY5 studies
• St. Louis, MO4 studies
• Boston, MA4 studies
• New Haven, CT3 studies
• Chicago, IL3 studies
• Orlando, FL3 studies
• Los Angeles, CA3 studies
• Philadelphia, PA3 studies
• Minneapolis, MN3 studies

By state

• California8 studies
• Connecticut3 studies
• Florida5 studies
• Georgia7 studies
• Illinois5 studies
• Maryland3 studies
• Massachusetts4 studies
• Minnesota4 studies
• Missouri6 studies
• New Jersey3 studies
• New York11 studies
• North Carolina5 studies
• Pennsylvania5 studies
• South Carolina6 studies
• Texas7 studies
• Virginia3 studies

Recently updated studies

From ClinicalTrials.gov, data retrieved Oct 5, 2026. Each study sets its own eligibility; the study team decides who can join.