Clinical trials
Substance Use Disorders clinical trials
Below are recruiting substance use disorders clinical trials, each written for real people, not researchers. We’re tracking 418 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06512389RecruitingPhase 2
Testing CBD for alcohol cravings
This study tests whether a medication called cannabidiol (CBD) can help reduce cravings for alcohol. Over several weeks, you will take the study pill and attend lab sessions where you can choose to drink alcohol in a safe setting.
Toronto, OntarioAges 19 years+ - NCT06559995RecruitingPhase 2/Phase 3
Ketone drink for alcohol withdrawal
This study tests whether a special ketone drink can ease alcohol withdrawal and help your brain heal. If you have been drinking heavily for at least 3 years and are having withdrawal symptoms now, this might be an option for you.
Philadelphia, PennsylvaniaAges 18–65 - NCT06620276Recruiting
Ketamine and therapy for alcohol use disorder and depression
This trial tests if combining ketamine infusions with weekly therapy can help people who have both alcohol use disorder and hard-to-treat depression. You may qualify if you drink at least moderately, have treatment-resistant depression, and are willing to attend 8 therapy sessions.
Montreal, QuebecAges 18–70 - NCT06660381RecruitingPhase 1
Psilocybin therapy for cannabis use disorder
This study tests if psilocybin (a substance that can change how you think and feel) can help people reduce or stop using cannabis. You will receive support and be monitored closely throughout the trial.
Baltimore, MarylandAges 18 years+ - NCT06706349Recruiting
Exercise to improve sleep in alcohol use disorder
This study tests whether a personalized exercise program can improve sleep quality in people with alcohol use disorder. You would work with a physical activity coach over several weeks, and your sleep and health would be monitored closely.
BesançonAges 18–65 - NCT07654205Recruiting
Smartphone study for young adults with ADHD and heavy drinking
This study tests a smartphone app to help young adults aged 18-25 who have ADHD and drink heavily. It aims to see if the app can reduce risky drinking and improve ADHD symptoms.
Pittsburgh, PennsylvaniaAges 18–25 - NCT06866379Recruiting
Brain study on alcohol use disorder: septal nuclei
This study uses brain scans (fMRI) to look at a small area deep in the brain called the septal nuclei, which may play a role in alcohol use disorder. It aims to understand how the brain's structure and activity relate to heavy drinking, which could lead to better treatments.
FrederiksbergAges 30–65 - NCT06943859RecruitingPhase 2
Ketamine for opioid use disorder during methadone treatment
This study tests if a medicine called ketamine, given during methadone treatment, can help people reduce their use of opioids. It is for people who recently started methadone and have been using opioids heavily.
Baltimore, MarylandAges 18–65 - NCT06949423Recruiting
Deep TMS for alcohol use disorder
This study tests whether deep transcranial magnetic stimulation (dTMS) can change brain activity related to alcohol use. It is for people who have moderate to severe alcohol use disorder and are willing to attend clinic visits.
Palo Alto, CaliforniaAges 18–75 - NCT06985927Recruiting
Self-Concept and Memory in Alcohol Use Disorder
This study looks at how people with alcohol use disorder remember their past and see themselves. Researchers will ask about your memories and self-image to understand the link between alcohol and thinking patterns.
ReimsAges 24 years+ - NCT06994338RecruitingPhase 2
Tirzepatide for alcohol use disorder
This study tests whether a medication called tirzepatide (a once-weekly injection) can help people reduce their alcohol consumption. It is for people who drink heavily, have a high BMI, and are actively seeking help to drink less.
Los Angeles, CaliforniaAges 21–65 - NCT07029529RecruitingPhase 2
Apremilast for alcohol use disorder
This study tests whether a drug called apremilast can help people who drink heavily reduce their alcohol use. You will take the medication daily for several weeks and attend study visits to track your progress.
New Haven, ConnecticutAges 21–65 - NCT07226570Recruiting
Ibogaine brain mapping study for opioid use disorder
This study uses MRI and EEG scans to map how ibogaine affects the brain in people with opioid use disorder. You must already be scheduled to receive ibogaine treatment in Tijuana, Mexico, on your own, as the study does not cover treatment costs.
Irvine, CaliforniaAges 21–70 - NCT07227948RecruitingPhase 2
Testing semaglutide for cocaine use disorder
This study tests whether semaglutide, a medication used for weight management, can help reduce cocaine use in people with cocaine use disorder. You may qualify if you have a body mass index (BMI) of 25 or higher and recently used cocaine.
Houston, TexasAges 18 years+ - NCT07158853RecruitingPhase 1
Brain stimulation and training for opioid use disorder
This trial combines a gentle brain stimulation technique called tDCS with thinking exercises to see if it helps people with opioid use disorder who are already on medication. It aims to improve treatment outcomes
Minneapolis, MinnesotaAges 18 years+ - NCT07464613Recruiting
Social thinking in severe alcohol use disorder
This study looks at how people with severe alcohol use disorder process social information, like understanding others' emotions or intentions. It uses brain imaging (MRI) and tests on a smartphone. The goal is to learn more about social cognition in recovery.
Reims, ReimsAges 18–65 - NCT07520292RecruitingPhase 1
Testing NTX-2001 to reduce drinking in alcohol use disorder
This study tests whether a new medication called NTX-2001 can help people with alcohol use disorder drink less. Researchers will measure how the drug affects alcohol consumption and safety in adults aged 21–60.
New Haven, ConnecticutAges 21–60 - NCT07612631RecruitingEarly Phase 1
Brain imaging study of alcohol and stress response
This research uses brain imaging to understand how two brain systems—one involved in stress and one involved in reward—interact in people with alcohol use disorder. The goal is to find new ways to help people reduce heavy drinking.
Pittsburgh, PennsylvaniaAges 18–55 - NCT05015881Enrolling by invitationPhase 2/Phase 3
Brain and heart scans in alcohol use disorder
This study uses special brain and heart scans to see how sugar (glucose) is used in people with alcohol use disorder compared with people without it. It may help researchers understand the brain–heart connection in alcohol use disorder.
Philadelphia, PennsylvaniaAges 21–65 - NCT06474026Recruiting
Focused Ultrasound for Stimulant Use Disorder
This trial tests a non-invasive brain treatment called focused ultrasound for people with stimulant use disorder (like methamphetamine or cocaine). It aims to help reduce cravings and improve recovery by gently stimulating a brain area involved in addiction.
Seoul, SeoulAges 19–60 - NCT03667846RecruitingPhase 2
Biomarker-guided treatment for drinking and PTSD symptoms
This Phase 2 study tests whether blood/brain “biomarkers” can help choose a treatment plan for people who have alcohol use disorder and PTSD. The goal is to improve outcomes related to drinking and PTSD symptoms compared with a standard approach.
New York, New YorkAges 18–70 - NCT04610697Recruiting
Cognitive training for people in forensic mental health care
This trial studies whether a structured “cognitive remediation” program (training thinking skills) can help people receiving care on a forensic treatment unit. It may benefit those who want support improving attention, memory, or problem-solving as part of their treatment.
Ottawa, OntarioAges 18–55 - NCT06371404Recruiting
Brain imaging study of stress and alcohol use disorders
This study uses a special brain scan to look at how stress and alcohol use affect the brain. It may help people with PTSD, alcohol use disorder, or healthy volunteers understand these conditions better.
New Haven, ConnecticutAges 18–70 - NCT07218354RecruitingPhase 3
Medication for reducing alcohol use in veterans
This study tests whether a medication (semaglutide) can help veterans reduce or stop drinking alcohol. It is for veterans who drink heavily and have alcohol use disorder, and who are interested in cutting down.
Long Beach, CaliforniaAges 18–80
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Common questions
- Are there clinical trials for substance use disorders?
- Yes. Clin2 currently lists 418 recruiting substance use disorders studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a substance use disorders trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a substance use disorders trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.