Clinical trials
Drug Use Disorders clinical trials
Below are recruiting drug use disorders clinical trials, each written for real people, not researchers. We’re tracking 288 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05722561RecruitingPhase 2
E-cigarettes to reduce smoking in opioid use disorder
This Phase 2 study tests whether e-cigarettes can help people who use opioids (and also smoke cigarettes) cut down on combustible cigarette smoking. It looks at whether switching to e-cigarettes for “harm reduction” is safe and helps you smoke fewer cigarettes without requiring you to quit completely.
New York, New YorkAges 21–75 - NCT05781009RecruitingPhase 2
Pregnenolone treatment for alcohol use disorder
This Phase 2 study tests pregnenolone to help reduce or improve alcohol use disorder symptoms. It looks for adults who drink regularly and meet diagnostic criteria for moderate to severe alcohol use disorder, while excluding people with certain other substance use, medicines, or serious mental/medical conditions.
New Haven, ConnecticutAges 18–70 - NCT05859347Recruiting
Brain stimulation study for cannabis use disorder
This trial tests whether a treatment called repetitive transcranial magnetic stimulation (a non-surgical magnetic stimulation to the brain) can help people reduce or stop cannabis use. You may be eligible if you have cannabis use disorder and meet specific safety and symptom criteria.
Toronto, OntarioAges 18–65 - NCT05899660Recruiting
Omega-3 for alcohol use disorder during withdrawal
This trial studies whether taking omega-3 supplements during a hospital alcohol-withdrawal program can improve recovery for people with alcohol use disorder. It may help by changing inflammation and how the body responds to stopping alcohol.
BrusselsAges 18–70 - NCT05986578Recruiting
Brain stimulation for cocaine use disorder
This study tests whether brain stimulation can help people with cocaine use disorder. It is a research study that aims to identify brain targets for treatment with a non-invasive technique called transcranial magnetic stimulation (TMS).
Houston, TexasAges 18–65 - NCT05988632RecruitingPhase 1/Phase 2
Insulin nasal spray for alcohol use disorder
This trial tests whether a nasal spray with insulin can help people with alcohol use disorder. It may affect how the brain responds to alcohol and reduce drinking.
Providence, Rhode IslandAges 21 years+ - NCT06105853Recruiting
Stress and brain activity in alcohol use disorder
This study looks at how people with alcohol use disorder respond to stress and what happens in the brain. You'll use a smartphone and may have an MRI scan to understand your stress responses.
Mannheim, Baden-WurttembergAges 18–65 - NCT06643988Recruiting
Memory and thinking study for opioid use disorder
This study looks at how people with opioid use disorder remember personal events. You'll do tasks on a cellphone and at home while taking medication for opioid use disorder.
Philadelphia, PennsylvaniaAges 18–60 - NCT06426303RecruitingPhase 4
Alcohol Use Disorder Treatment in Veterans: Brain and Inflammation
This study is for veterans with alcohol use disorder who have been sober for 5 days to 3 weeks. It looks at how trauma, inflammation, and brain function relate to alcohol problems and how well treatment works. You will be in a group that gets medication or a placebo.
Portland, OregonAges 18–60 - NCT06444256RecruitingPhase 2
Testing a sleep medication for people with stimulant use
This trial tests whether a medication that blocks a brain chemical involved in wakefulness can help people with stimulant use disorder sleep better. If you use cocaine or methamphetamine and have trouble sleeping, this study may be an option.
Houston, TexasAges 18–65 - 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+ - NCT06538558RecruitingPhase 1
Study of tezampanel for opioid withdrawal
This trial tests if tezampanel can help relieve withdrawal symptoms in people with opioid use disorder who are seeking treatment. Participants must already be in an outpatient addiction program.
Indianapolis, IndianaAges 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 - 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 - NCT06870110Recruiting
Brain training for opioid use disorder
This trial tests a brain-training program for people with opioid use disorder. It uses an EEG headset to measure brain activity while you do computer exercises, and aims to see if this training can help recovery.
Minneapolis, MinnesotaAges 18–65 - 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 - NCT07178990Recruiting
Wellness and recovery app for people on opioid treatment
This study tests if a smartphone app can help people taking medications for opioid use disorder and who also have alcohol use disorder. You will use the app for 6 months and provide feedback through surveys and saliva drug tests.
Ann Arbor, MichiganAges 19–63 - NCT07211867Recruiting
Reducing self-stigma in pregnant women and new mothers with substance use
This trial tests a digital tool called Enhearten that aims to decrease self-stigma (negative feelings about yourself) in pregnant women and new mothers who have used substances (other than alcohol or tobacco). The study hopes to help participants feel better about themselves and seek support.
St Louis, MissouriAges 18 years+ - 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+ - NCT07325266RecruitingPhase 2
Testing apremilast for alcohol use disorder
This study tests whether a pill called apremilast can help reduce drinking in people with alcohol use disorder. You'll take the medication and attend regular visits to see how it affects your alcohol cravings and use.
Los Angeles, CaliforniaAges 21 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+ - 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
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Common questions
- Are there clinical trials for drug use disorders?
- Yes. Clin2 currently lists 288 recruiting drug 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 drug 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 drug 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.