Substance Use Disorder (SUD) Clinical Trials

30 recruitingLast updated: June 18, 2026

There are 30 actively recruiting substance use disorder (sud) clinical trials across 15 countries. Studies span Not Applicable, Early Phase 1, Phase 1, Phase 4. Top locations include San Francisco, California, United States, Vienna, Austria, Oakland, California, United States. Updated daily from ClinicalTrials.gov.


Substance Use Disorder (SUD) Trials at a Glance

30 actively recruiting trials for substance use disorder (sud) are listed on ClinicalTrialsFinder across 6 cities in 15 countries. The largest study group is Not Applicable with 21 trials, with the heaviest enrollment activity in San Francisco, Vienna, and Oakland. Lead sponsors running substance use disorder (sud) studies include University of California, San Francisco, Pakistan Institute of Living and Learning, and Fairleigh Dickinson University.

Browse substance use disorder (sud) trials by phase

Treatments under study

About Substance Use Disorder (SUD) Clinical Trials

Looking for clinical trials for Substance Use Disorder (SUD)? There are currently 30 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Substance Use Disorder (SUD) trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Substance Use Disorder (SUD) clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 30 trials

Recruiting
Not Applicable

Metabolome and Gut Microbiome Changes During Smoking Cessation in Long-term Drug Therapy in a Therapeutic Community

healthy adult participantsSubstance Use Disorder (SUD)Alcohol Use Disorder (AUD)+1 more
Sigmund Freud PrivatUniversitat150 enrolled3 locationsNCT06803706
Recruiting

NLP Analysis of Weekly Narratives for Dynamic Clinical Assessment in SUD

AnxietyEmotional DysregulationSubstance Use Disorder (SUD)+2 more
Lauro Gutiérrez Castro35 enrolled1 locationNCT07595614
Recruiting

Reducing Parental Substance Use and Enhancing Family Resilience Among Rural Families Through Ohio START

Rural HealthSubstance Use Disorder (SUD)Child Maltreatment+3 more
Ohio State University400 enrolled1 locationNCT07278427
Recruiting
Not Applicable

WORTH Paths Intervention

Sexual and Reproductive HealthSubstance Use Disorder (SUD)Sexual Risk Behavior
Fairleigh Dickinson University50 enrolled1 locationNCT06889831
Recruiting
Not Applicable

Fighting Addictions, Improving Lives: COmprehensive Drug Rehabilitation With Music

Substance Use Disorder (SUD)
NORCE Norwegian Research Centre AS600 enrolled11 locationsNCT07028983
Recruiting
Not Applicable

Contextualization and Digitalization of WHO's Mental Health Action Gap Intervention Guide Substance Use Disorders Module

Substance Use Disorder (SUD)
Pakistan Institute of Living and Learning300 enrolled1 locationNCT07386574
Recruiting
Not Applicable

HABITS Study (Helping Addiction by Individualized Therapeutic Stimulation): Pilot Trial of Deep Brain Stimulation Guided By Stereoelectroencephalography for Treatment-Refractory Substance Use Disorders

Substance Use Disorder (SUD)Addiction
Centre for Addiction and Mental Health10 enrolled1 locationNCT06973512
Recruiting
Not Applicable

Adolescent Stress and Substance Intervention Subsequent to Trauma

PTSDSubstance Use Disorder (SUD)Acute Stress Disorder
Rhode Island Hospital92 enrolled1 locationNCT07197476
Recruiting
Not Applicable

Pathways to Perinatal Mental Health Equity

Perinatal AnxietyPerinatal DepressionSubstance Use Disorder (SUD)+4 more
University of Massachusetts, Worcester1,270 enrolled1 locationNCT06790641
Recruiting
Not Applicable

California MEPS Hub

Substance Use Disorder (SUD)HIV PreventionHepatitis C Virus (HCV)+3 more
University of California, Los Angeles318 enrolled3 locationsNCT07433985
Recruiting

Identifying Substance Use Consequences

Substance Use Disorder (SUD)
Mclean Hospital50 enrolled1 locationNCT07503067
Recruiting
Not Applicable

The Trans-Led Care Study

Substance AbuseSubstance AddictionSubstance Use Disorder (SUD)+2 more
Illinois Institute of Technology124 enrolled1 locationNCT06880705
Recruiting
Phase 4

Long-acting Cabotegravir Injectable Pre-exposure Prophylaxis for People Who Inject Drugs

HIVSubstance Use Disorder (SUD)Injection Drug Use
Massachusetts General Hospital100 enrolled2 locationsNCT07199335
Recruiting
Not Applicable

Correctional Service of Canada Pilot Trial of Digital Substance Use Disorder Interventions (PROCESS)

Substance Use Disorder (SUD)
St. Joseph's Healthcare Hamilton20 enrolled4 locationsNCT07342218
Recruiting
Not Applicable

Calls and Coordination for Transitions of Care at Re-entry

Chronic medical conditionsSubstance Use Disorder (SUD)Prisoners+2 more
University of Wisconsin, Madison488 enrolled1 locationNCT06794983
Recruiting
Phase 1

Open-Label Psilocybin Study in Transdiagnostic Population

AnxietyDepression - Major Depressive DisorderPTSD+5 more
Yale University50 enrolled1 locationNCT06442423
Recruiting

LHC-CIDI-5 in Hong Kong

Suicidal IdeationObsessive Compulsive Disorder (OCD)Major Depressive Disorder (MDD)+20 more
The University of Hong Kong2,500 enrolled1 locationNCT06804525
Recruiting
Not Applicable

Transcranial Direct Current Stimulation (tDCS) for Treatment of Cocaine Use Disorder

Substance Use Disorder (SUD)Cocaine Use DisorderCocaine Dependence
Icahn School of Medicine at Mount Sinai120 enrolled1 locationNCT07318480
Recruiting
Not Applicable

Web-based Alcohol- or Cocaine-specific Inhibition Training in Adolescents and Young Adults With Substance Use Disorder

Substance Use Disorder (SUD)Alcohol Use Disorder (AUD)Cocaine Use Disorder (CUD)
University of Bern210 enrolled1 locationNCT07071779
Recruiting
Not Applicable

Substance Use in Pregnant People - Optimizing Retention in Treatment

PregnancyPostpartumSubstance Use Disorder (SUD)+1 more
Washington University School of Medicine40 enrolled2 locationsNCT07104123