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Drug Use and Addiction clinical trials in Washington, DC

3 studies for Drug Use and Addiction are looking for participants at sites in and around Washington (within about 30 miles). Open a study to see who can join and how to contact the study team.

Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →

About Drug Use and Addiction

Drugs include prescription and over-the-counter medicines, alcohol, tobacco, and illegal substances. Repeated drug use can change the brain and lead to addiction.

More about Drug Use and Addiction on MedlinePlus

Drug Use and Addiction trials in other cities

• Baltimore, MD13 studies
• New York City, NY9 studies
• Houston, TX9 studies
• New Haven, CT8 studies
• Charleston, SC8 studies
• Boston, MA7 studies
• Chicago, IL7 studies
• San Francisco, CA6 studies
• San Diego, CA6 studies
• Los Angeles, CA6 studies
• Dallas, TX5 studies
• Providence, RI5 studies

Other studies in Washington

• Cancer (all types)58 studies
• Non-Small Cell Lung Cancer55 studies
• Breast Cancer46 studies
• Metastatic Cancer43 studies
• Lung Cancer41 studies
• Prostate Cancer38 studies
• Obesity33 studies
• Colorectal Cancer29 studies
• Cardiovascular Disease28 studies
• Bladder Cancer26 studies
• Acute Myeloid Leukemia24 studies
• Ovarian Cancer23 studies

From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.