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 408 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04773691Recruiting
High-frequency brain stimulation to help cut alcohol use
This trial tests whether high-frequency rTMS (a non-surgical brain stimulation) can reduce how much alcohol you drink. It targets people with alcohol use disorder who are not fully stopping, and who want to cut down after a past relapse or failed withdrawal attempt.
DijonAges 18 years+ - NCT04770025RecruitingPhase 2
Brain stimulation with therapy for risky alcohol use
This study tests whether a non-invasive brain stimulation device can make standard psychotherapy work better for people who drink in a risky way. It’s designed for community participants who are not already in alcohol-use treatment.
Albuquerque, New MexicoAges 21–60 - NCT07136363Recruiting
RESTORE study: support for stimulant users leaving jail or prison
This trial tests a smartphone app (DynamiCare) to help people recovering from stimulant use (methamphetamine or cocaine) stay healthy after leaving jail or prison. It also focuses on those at risk for or living with HIV.
New Haven, ConnecticutAges 18 years+ - NCT07118618RecruitingPhase 2
Probenecid for alcohol cravings and drinking
This study tests if the medication probenecid can help reduce cravings for alcohol and the amount you drink. It is for people who drink heavily and have moderate to severe alcohol use disorder.
Providence, Rhode IslandAges 18 years+ - NCT07086014Recruiting
Brain response to methamphetamine cues in men
This study uses brain scans to see how men with methamphetamine use disorder react to images or reminders of the drug. It aims to understand cravings and brain activity, which could help improve treatments.
New York, New YorkAges 18–60 - NCT07094061Recruiting
Brain response to reward cues in young adults
This study looks at how the brain reacts to cues that signal rewards in young adults ages 18 to 22. Participants will do computer tasks and have an MRI scan to understand differences in how people respond to reward-related signals.
Ann Arbor, MichiganAges 18–22 - NCT07091877Recruiting
Cocaine use and brain response study
This study looks at how cravings for cocaine change over time in people who have recently stopped using. Researchers will measure brain activity to understand this process better.
New York, New YorkAges 18–65 - NCT07085377Recruiting
Nurse-led methadone program for opioid use disorder
This trial tests a system where nurses can adjust your methadone dose without a doctor's order. It's for people starting methadone treatment for opioid use disorder and willing to be followed at a CSAPA center for 3 months.
BayonneAges 18 years+ - NCT07075081RecruitingPhase 2
Cultural healing trial for Ojibwe adults using substances
This trial tests a culturally-based program called Gii'Igoshimong (Sitting With Your First Family) for Ojibwe/Anishinaabe/Chippewa adults who have used substances recently. It aims to support wellness and recovery in a way that respects your heritage.
Duluth, MinnesotaAges 18 years+ - NCT07050862Recruiting
Personalized brain stimulation to help veterans quit smoking
This study tests a personalized brain stimulation treatment to help veterans quit smoking. It uses magnetic pulses to target brain areas involved in addiction, which may reduce cravings and make it easier to stop.
Charleston, South CarolinaAges 18–70 - NCT06265506Recruiting
Virtual Reward Program for Cutting Back on Heavy Drinking
This study tests a virtual program that rewards you for reducing heavy drinking. You'd use a phone app, check in via Zoom, and get a glimpse into your drinking patterns through a blood test. It might be a good fit if you want to cut back on heavy drinking without going to an in-person clinic.
Spokane, WashingtonAges 18 years+ - NCT06940674RecruitingPhase 3
CBD plus opioid treatment for recovery
This study tests whether adding cannabidiol (CBD) to your usual methadone or buprenorphine treatment helps you recover from opioid use disorder. If you're already in stable treatment with those medications, the trial aims to see if CBD can improve your outcomes.
New York, New YorkAges 18–65 - NCT06907979Recruiting
Cannabis use and emotion processing study
This study looks at how heavy cannabis use affects the way you process emotions. You may be able to join if you use cannabis most days, meet criteria for cannabis use disorder, and are not currently in treatment for it. Participants will have brain scans and mild brain stimulation.
Auburn, AlabamaAges 18–50 - NCT06899594RecruitingEarly Phase 1
Psilocybin for quitting methamphetamine
This trial tests whether psilocybin (a psychedelic medicine) can help people quit methamphetamine. You'll receive counseling before, during, and after the drug session, and your progress will be followed for several months.
Shreveport, LouisianaAges 25–65 - NCT06853873Enrolling by invitation
Alcohol counseling for safer pregnancies
This trial tests a counseling program to help pregnant women reduce risky alcohol use. The program is designed to support women in making healthier choices for themselves and their baby.
Cape TownAges 18 years+ - NCT06837220Recruiting
Smoking cessation program for people in community behavioral health
This study tests a smoking cessation program designed for people who receive care at community behavioral health centers in Chicago. If you're a daily smoker interested in quitting, you may be able to join and get support to help you stop.
Chicago, IllinoisAges 18–26 - NCT06837311Recruiting
Smoking cessation after stroke via smartphone monitoring
This study tests a smartphone-based program that helps people who recently had a stroke quit smoking. It uses digital monitoring and support as part of your regular post-stroke follow-up to lower the risk of another stroke.
BordeauxAges 18–80 - NCT06822569Recruiting
Teen health choices & wellness study
This study tests a program to help teenagers make healthy choices. It may be a good fit if you've recently done a behavior you'd like to change and live in Rhode Island.
Providence, Rhode IslandAges 13–16 - NCT06810310RecruitingPhase 2
Psilocybin for motivation in opioid use disorder
This study tests whether a single dose of psilocybin (the active ingredient in magic mushrooms) can help people with opioid use disorder stay motivated in recovery. It uses brain scans to see how psilocybin affects brain areas linked to motivation.
Philadelphia, PennsylvaniaAges 18–60 - NCT06793488RecruitingEarly Phase 1
Anxiety and alcohol use disorder treatment study
This study tests whether a medication called disulfiram (Antabuse) can help people with alcohol use disorder (AUD) feel less anxious when they stop drinking. Researchers will also use brain scans (MRI) to look at how the brain changes during early abstinence.
New York, New YorkAges 21–55 - NCT06786325RecruitingPhase 2
Psilocybin treatment study for opioid use disorder
This trial tests whether psilocybin can help people recovering from opioid use disorder while living at a residential treatment center. If you are already taking buprenorphine/naloxone (Suboxone), methadone, or have received Sublocade, this study may be an option for you.
Philadelphia, PennsylvaniaAges 18–60 - NCT06695884Recruiting
Finding the best TMS pulse pattern to boost brain reward activity
This study tests different pulse patterns of transcranial magnetic stimulation (TMS), a noninvasive brain stimulation, to see which one best increases activity in brain reward circuits. It may help people who are dependent on nicotine.
Newark, New JerseyAges 18–55 - NCT06617312RecruitingPhase 2
Cytisinicline and brain response to smoking cues
This study tests how a medicine called cytisinicline (similar to a plant-based stop-smoking aid) affects brain activity when you see or think about smoking. It may help researchers understand how the medicine works, even if you aren't ready to quit right now.
Los Angeles, CaliforniaAges 18–65 - NCT06575751RecruitingPhase 2
Study of cannabidiol and cannabis concentrate users
This study looks at how cannabidiol (a compound in cannabis) affects people who regularly use strong cannabis concentrates like wax, shatter, or oil. It may help understand if using CBD can change how cannabis affects the body or help with cannabis use disorder.
Aurora, ColoradoAges 25–60
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Common questions
- Are there clinical trials for substance use disorders?
- Yes. Clin2 currently lists 408 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.