Substance Use Clinical Trials

173 recruitingLast updated: June 18, 2026

There are 173 actively recruiting substance use clinical trials across 26 countries. Studies span Not Applicable, Phase 4, Phase 2, Early Phase 1, Phase 1, Phase 3. Top locations include New York, New York, United States, Boston, Massachusetts, United States, Baltimore, Maryland, United States. Updated daily from ClinicalTrials.gov.


Substance Use Trials at a Glance

173 actively recruiting trials for substance use are listed on ClinicalTrialsFinder across 6 cities in 26 countries. The largest study group is Not Applicable with 129 trials, with the heaviest enrollment activity in New York, Boston, and Baltimore. Lead sponsors running substance use studies include VA Office of Research and Development, Yale University, and Centre for Addiction and Mental Health.

Browse substance use trials by phase

Treatments under study

About Substance Use Clinical Trials

Looking for clinical trials for Substance Use? There are currently 64 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 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 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 173 trials

Recruiting
Not Applicable

Defining Neurobiological Links Between Substance Use and Mental Illness

Substance Use DisorderNormal PhysiologyMajor Depressive Disorder
National Institute on Drug Abuse (NIDA)620 enrolled1 locationNCT05538910
Recruiting
Not Applicable

Feasibility of Incorporating a Standardized Substance Use Measure With Linked-Brief Intervention Into Routine Psychosocial Care of Adult Childhood Cancer Survivors

Substance UseSurvivors of Childhood Cancer
St. Jude Children's Research Hospital30 enrolled1 locationNCT07516301
Recruiting

Culturally Engaged REcovery: MOms Connected Through Native communitY

PregnancyMaternal Morbidity and MortalitySubstance Use Disorders (SUD)+1 more
University of Utah270 enrolled1 locationNCT06747442
Recruiting
Not Applicable

Neuroimaging of Adolescent Cannabis Use Treatment

Cannabis withdrawalSubstance Use DisordersCannabis Use+23 more
Indiana University80 enrolled1 locationNCT07340554
Recruiting
Not Applicable

Neurobehavioral Signatures of Sign- and Goal-Tracking in Emerging Adults: Translation of a Preclinical Model

HealthySubstance Use
University of Michigan294 enrolled2 locationsNCT07094061
Recruiting
Not Applicable

Development and Evaluation of a Virtual Reality Tool for At-Risk Trauma-Exposed Young People

HIV InfectionsSubstance Use Disorders
Medical University of South Carolina50 enrolled1 locationNCT05816083
Recruiting
Not Applicable

Adaptation and Evaluation of Bright Horizons

Substance UseAlcohol Abuse
Johns Hopkins Bloomberg School of Public Health100 enrolled1 locationNCT05743699
Recruiting
Not Applicable

Adaptation of the Family Check-Up Online

Substance Use (Drugs, Alcohol)
University of Oregon108 enrolled1 locationNCT07025083
Recruiting
Not Applicable

The Development and Evaluation of a Culturally Grounded ENDS Intervention for Rural Hawaiian Youth

E-cigarette useSubstance Use
University of Hawaii500 enrolled1 locationNCT06929520
Recruiting

Screening, Evaluation and Assessment (SEA) Protocol at the NIDA IRP

Substance Use DisorderAlcohol Use Disorder
National Institute on Drug Abuse (NIDA)10,000 enrolled1 locationNCT06552741
Recruiting
Not Applicable

Improving Outcomes for Early Postpartum Mothers in Outpatient MOUD Treatment

ParentingSubstance Use TreatmentPerinatal Substance Use
University of Arkansas10 enrolled1 locationNCT07071766
Recruiting
Not Applicable

tAN for Substance Use Disorder

Substance Use DisordersAlcohol Use DisorderAlcohol Abuse+1 more
Spark Biomedical, Inc.20 enrolled1 locationNCT07281261
Recruiting

Impact of Federal and State Medications for Opioid Use Disorder (MOUD) Policy Changes During the Pandemic

Substance Use DisordersOpioid-use DisorderAlcohol Use Disorder
Boston University185,810 enrolled1 locationNCT07232641
Recruiting
Not Applicable

Efficacy of an EMDR App for PTSD and SUD

Substance Use DisordersPosttraumatic Stress Disorder (PTSD)
Centre for Addiction and Mental Health24 enrolled1 locationNCT07146633
Recruiting
Not Applicable

Project REACH: A Comprehensive Telehealth Intervention at Syringe Service Programs to Engage People Who Use Drugs

Substance UseDrug Use
University of Minnesota121 enrolled1 locationNCT07433712
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
Not Applicable

The Collaborative Care PrTNER Study

Substance Use DisordersHIVSubstance Use+1 more
Children's Hospital of Philadelphia275 enrolled2 locationsNCT06585631
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

The Hastiin Bidziil (Strong Man) Intervention

Substance Use
Johns Hopkins Bloomberg School of Public Health160 enrolled2 locationsNCT06559774