Opioid-use Disorder Clinical Trials

165 recruitingLast updated: June 18, 2026

There are 165 actively recruiting opioid-use disorder clinical trials across 11 countries. Studies span Not Applicable, Phase 2, Phase 1, Phase 3, Phase 4, Early Phase 1. Top locations include Baltimore, Maryland, United States, Philadelphia, Pennsylvania, United States, New York, New York, United States. Updated daily from ClinicalTrials.gov.


Opioid-use Disorder Trials at a Glance

165 actively recruiting trials for opioid-use disorder are listed on ClinicalTrialsFinder across 6 cities in 11 countries. The largest study group is Not Applicable with 84 trials, with the heaviest enrollment activity in Baltimore, Philadelphia, and New York. Lead sponsors running opioid-use disorder studies include Yale University, University of Pennsylvania, and Medical University of South Carolina.

Browse opioid-use disorder trials by phase

Treatments under study

About Opioid-use Disorder Clinical Trials

Looking for clinical trials for Opioid-use Disorder? There are currently 164 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 Opioid-use Disorder 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 Opioid-use Disorder 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 165 trials

Recruiting

Opioid Use Disorder and Pain

Opioid-use DisorderHealthy Controls Group - Age and Sex-matched
Yale University180 enrolled1 locationNCT06800703
Recruiting
Phase 4

Optimizing Evidence-based HIV Prevention Targeting People Who Inject Drugs on PrEP

Opioid-use DisorderHIV
University of Connecticut256 enrolled1 locationNCT05669534
Recruiting
Not Applicable

Adaptive Decision Support for Addiction Treatment Master

Opioid-use Disorder
Yale University1,912 enrolled3 locationsNCT06799117
Recruiting
Not Applicable

Coordinating Outpatient bupreNorphiNe for Emergency Care and Continuing Treatment

Opioid-use Disorder
University of California, Davis3,492 enrolled4 locationsNCT07024498
Recruiting
Not Applicable

Better Experiences in Substance Treatment: A Brief Alcohol-focused Intervention Tailored for Patients in Opioid Agonist Treatment

Opioid UseOpioid-use DisorderAlcohol Use Disorder+1 more
University of Notre Dame60 enrolled1 locationNCT07342504
Recruiting
Not Applicable

Postpartum Intervention for Mothers With Opioid Use Disorders (R33)

Opioid-use DisorderParent-Child Relations
Stony Brook University80 enrolled2 locationsNCT07632053
Recruiting
Phase 3

Buprenorphine for Individuals in Jail

Opioid-use Disorder
Friends Research Institute, Inc.240 enrolled2 locationsNCT06306443
Recruiting
Phase 2

A Study of Brenipatide in Participants With Opioid Use Disorder

Opioid-use Disorder
Eli Lilly and Company465 enrolled57 locationsNCT07420283
Recruiting
Not Applicable

Supporting Treatment Access and Recovery in COD

Mental Health DisorderOpioid-use Disorder
University of Massachusetts, Worcester1,000 enrolled5 locationsNCT05138614
Recruiting

Sensing Physiological Symptoms of Opioid Withdrawal and Cravings in Patients With Opioid Use Disorder

Opioid-use DisorderOpioid Withdrawal
Spark Biomedical, Inc.20 enrolled2 locationsNCT06487533
Recruiting
Not Applicable

Project STRONGER: Stepped Care for Opioid Use Disorder Treatment Engagement and Recovery

Post Traumatic Stress Disorder (PTSD)Opioid-use DisorderIntimate Partner Violence (IPV)
Yale University532 enrolled3 locationsNCT07115030
Recruiting
Phase 4

Integrated e-Health (Electronic Health) for HIV and Substance Use Disorders in Justice Involved Women

Opioid-use DisorderHIVeHealth
Yale University250 enrolled2 locationsNCT05547048
Recruiting
Not Applicable

Older Adults, Methadone, and Cognitive Function

Opioid-use DisorderCognitive Ability, General
University of Maryland, Baltimore30 enrolled1 locationNCT07153029
Recruiting
Early Phase 1

A Clinical Trial Comparing Buprenorphine Formulations for High Potency Synthetic Opioid Use

Opioid-use Disorder
Rachel R. Luba60 enrolled1 locationNCT06726200
Recruiting
Not Applicable

Neuromodulation and Cognitive Training in Opioid Use Disorder

Opioid-use DisorderOpioid DependenceOpioid Abuse
University of Minnesota30 enrolled1 locationNCT03773523
Recruiting
Phase 2

Psilocybin on Brain Mechanisms of Motivation in OUD

Opioid-use Disorder
University of Pennsylvania24 enrolled1 locationNCT06810310
Recruiting
Not Applicable

Social Functioning in Opioid Use Disorder

Opioid-use Disorder
Medical University of South Carolina230 enrolled1 locationNCT07044466
Recruiting
Not Applicable

Contingency Management to Improve Medication for Opioid Use Disorder Continuation After the Emergency Department

Opioid-use Disorder
University of Vermont30 enrolled1 locationNCT07129902
Recruiting
Phase 3

Standard Versus High Dose ED-Initiated Buprenorphine Induction

Opioid-use Disorder
Yale University360 enrolled5 locationsNCT06494904
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