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 422 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06548490RecruitingPhase 2
Semaglutide for Opioid Use Disorder
This study tests whether a once-weekly injection of semaglutide (a GLP-1 receptor agonist) can reduce opioid use in people who are already on buprenorphine or methadone but still using opioids. It lasts about 19 weeks.
Baltimore, MarylandAges 18–75 - NCT06296186Recruiting
PTSD treatment for veterans in substance use recovery
This trial tests a condensed form of prolonged exposure therapy for PTSD in veterans who are also receiving treatment for a substance use disorder. The goal is to help you process trauma and reduce substance use together.
San Diego, CaliforniaAges 18 years+ - NCT07631598Recruiting
Buprenorphine at Needle Exchange Programs to Prevent Overdoses
This study tests whether offering buprenorphine (a medication that reduces cravings and withdrawal) directly at syringe service programs (places where people get clean needles) can help people with opioid addiction stay safe and reduce overdose risk. If you use opioids and visit a syringe service program, this may be an option to explore.
Los Angeles, CaliforniaAges 18 years+ - NCT07563517Recruiting
Peer coaching for substance use support in jail
This study tests whether connecting people in jail with peer coaches—people with lived experience of substance abuse recovery—can help them stay engaged with care after release. You'd receive support calls and guidance from someone who understands recovery firsthand.
Atlanta, GeorgiaAges 18 years+ - NCT05974202Recruiting
Brain stimulation and therapy for cocaine use
This study tests a combination of brain stimulation (rTMS) and talk therapy (CBT) to help people reduce cocaine use. It's for adults who want treatment and use cocaine at least once a week.
New York, New YorkAges 22–65 - NCT05486234Recruiting
Study to reduce cannabis and alcohol use with teen and caregiver
This study looks at ways to help teens cut down on cannabis and alcohol use. You may qualify if you’ve been using both in the last three months and your caregiver is able to join and consent.
Charleston, South CarolinaAges 13–17 - NCT06584448Recruiting
Drinking, acetate, and stress study
This study looks at how acetate (a substance produced when the body breaks down alcohol) affects stress and drinking. It tests if giving acetate can help people with alcohol use disorder (AUD) reduce their drinking.
New Haven, ConnecticutAges 18–60 - NCT07756723RecruitingPhase 2/Phase 3
Comparing PTSD treatments for veterans with substance use
This study compares two proven treatments for veterans who have both PTSD and substance use problems. It aims to find which treatment works best to help with trauma recovery.
Coatesville, PennsylvaniaAges 18 years+ - NCT07487155Recruiting
Coordinating care for ADHD and addiction in prison
This trial tests a new way of coordinating care for people in prison who have both ADHD and a substance use disorder. It combines medical treatment, addiction services, and team-based support all in one program.
BrestAges 18 years+ - NCT06678672Recruiting
Help for veterans who smoke before major surgery
This study tests a program to help veterans who smoke quit before a planned major surgery. The program uses rewards to encourage quitting, and it may improve surgery outcomes.
San Francisco, CaliforniaAges 18 years+ - NCT07575373Recruiting
Improving Hospital Care for People With Substance Use Disorders
This study tests a new team-based approach to help hospitalized patients with substance use disorders get better care and smoother transitions when leaving the hospital. Researchers want to see if coordinated support from doctors, counselors, and social workers can improve your health outcomes and connection to treatment.
Salt Lake City, UtahAges 18 years+ - NCT07104123Recruiting
Improving treatment retention for substance use during pregnancy
This study is looking for pregnant people or new parents (within 3 years of giving birth) who have a substance use disorder. The goal is to find better ways to help them stay in treatment.
Baltimore, MarylandAges 18 years+ - NCT05886582RecruitingPhase 2
Rotigotine patch added to therapy for cocaine use
This Phase 2 study tests whether a rotigotine skin patch, used alongside behavioral therapy, can help people reduce cocaine use. It also looks at changes in brain activity while you do study tasks.
Richmond, VirginiaAges 25–70 - NCT03135886Recruiting
Testing for HIV in opioid treatment programs
This project studies how to improve offering and completing HIV (and hepatitis C) tests in opioid treatment programs. It may help increase timely follow-up and linkage to care when results are positive.
New York, New YorkAges 18 years+ - NCT07221396Enrolling by invitation
A text-based program to help reduce stimulant use
This study tests a text-message program called LDART to help people who use cocaine or other stimulants cut down or quit. If you live in Connecticut, have a smartphone, and want to reduce your stimulant use, you may be able to join.
New Haven, ConnecticutAges 18 years+ - NCT06424184Recruiting
Fast brain stimulation for addiction and depression
This study tests a quick, non-invasive brain stimulation method (rTMS) to help people who use stimulants like cocaine or methamphetamine and also feel depressed. The goal is to see if it can reduce cravings and improve mood.
Dallas, TexasAges 18–65 - NCT06823453Recruiting
Training friends and family to support people who use opioids
This study trains friends and family members of people who use opioids, so they can provide better support and reduce stigma. It also includes people who use opioids to see if this training improves their relationship and well-being.
Chicago, IllinoisAges 18 years+ - NCT07742722Recruiting
Peer support for veterans with mental health and substance use issues
This study tests a program where trained peer supporters help veterans who have been involved with the justice system and have mental health or substance use issues. It aims to improve their well-being and recovery.
Bedford, MassachusettsAges 18 years+ - NCT07734623Recruiting
Ultrasound treatment for severe opioid or amphetamine use disorder
This trial tests a low-intensity focused ultrasound treatment for people with severe opioid or amphetamine use disorder. The ultrasound targets a part of the brain linked to addiction, and the goal is to see if it is safe and helpful.
TaipeiAges 20–50 - NCT07527871Enrolling by invitation
Emergency care screening and counseling for substance use prevention
This study tests whether screening patients in the emergency department for substance use, followed by a brief counseling session, can help prevent substance use problems and overdoses. You would be asked about your substance use and receive supportive counseling by phone or video.
Columbus, OhioAges 18 years+ - NCT07278427Recruiting
Reducing substance use in rural parents
This trial tests a program to help parents in rural Ohio reduce substance use and strengthen their families. You may be eligible if you are 18 or older and have had certain substance use issues.
Columbus, OhioAges 18 years+ - NCT04141202Recruiting
Exercise program during short inpatient treatment for substance use
This trial tests a structured exercise program for people receiving short-term inpatient treatment for substance use. It may help improve health and recovery support during your stay.
TrondheimAges 18 years+ - NCT05854836Recruiting
Pre-pregnancy support for incarcerated women with substance use
This study tests a preconception (before pregnancy) support program for incarcerated women who have used substances and could become pregnant. It may help improve health and planning before a future pregnancy.
St Louis, MissouriAges 18–49 - NCT07210268Recruiting
Brain stimulation for nicotine addiction treatment
This trial tests a new method called temporal interference to stimulate the brain and help people who vape nicotine reduce their addiction. It aims to see if this non-invasive approach can make it easier to quit.
Bloomington, IndianaAges 21–50
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Substance Use Disorders trials by city
Studies with a site in or near these metro areas.
Substance Use Disorders trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for substance use disorders?
- Yes. Clin2 currently lists 422 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.