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Harm Reduction clinical trials recruiting in the U.S.

17 studies for Harm Reduction are recruiting participants at sites across the United States.

Cities with the most studies

• New York City, NY3 studies

By state

• New York4 studies
• Pennsylvania3 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.