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Drug Use and Addiction clinical trials in Los Angeles, CA
6 studies for Drug Use and Addiction are looking for participants at sites in and around Los Angeles (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 →
Evaluation of Oral THC and CBD in Men and Women
RecruitingPhase 1Healthy volunteers welcome
- University of California, Los Angeles, Los Angeles
MDMA-Assisted Therapy for Veterans With Moderate to Severe Post Traumatic Stress Disorder
RecruitingPhase 2
- VA Greater Los Angeles Healthcare System, Westwood campus, Los Angeles
- West Los Angeles Veteran Affairs, Los Angeles
Multi-Site Trial of Tirzepatide for Smoking Cessation
RecruitingPhase 2
- Keck School of Medicine, University of Southern California, Los Angeles
Age-dependent Effects of Smoked and Oral Delta-9-THC
RecruitingPhase 1Healthy volunteers welcome
- UCLA Center for Cannabis and Cannabinoids, Los Angeles
THC and CBD: A Controlled Human Study Probing a Harm Reduction Strategy
RecruitingPhase 1Healthy volunteers welcome
- UCLA Center for Cannabis and Cannabinoids, Los Angeles
An Evaluation of the Pink Cloud Application in Post- Treatment Substance Use Disorder Support
RecruitingHealthy volunteers welcome
- Loyola Marymount, Los Angeles
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
- Dallas, TX5 studies
- Providence, RI5 studies
- Salt Lake City, UT5 studies
Other studies in Los Angeles
- Non-Small Cell Lung Cancer87 studies
- Cancer (all types)74 studies
- Breast Cancer73 studies
- Prostate Cancer61 studies
- Colorectal Cancer59 studies
- Metastatic Cancer57 studies
- Ovarian Cancer50 studies
- Lung Cancer45 studies
- Head and Neck Squamous Cell Carcinoma42 studies
- Pancreatic Cancer35 studies
- Endometrial Cancer34 studies
- Melanoma34 studies
From ClinicalTrials.gov, data retrieved Oct 6, 2026. Each study sets its own eligibility; the study team decides who can join.