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 419 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06320366Recruiting
Faster TMS for methamphetamine use disorder
This study tests a faster brain stimulation technique (TMS) to help people reduce methamphetamine use. It may be a good option if you have moderate to severe methamphetamine use disorder and are looking for new treatment approaches.
Aurora, ColoradoAges 21–65 - NCT06578429Recruiting
Deep TMS for methamphetamine use disorder
This study uses a type of brain stimulation called deep TMS to see if it can help people with methamphetamine use disorder reduce their cravings and use. You would receive daily magnetic pulses to specific brain areas over several weeks.
Palo Alto, CaliforniaAges 25–75 - NCT06457243Recruiting
Brain stimulation for methamphetamine use disorder
This trial tests a type of brain stimulation (called cTBS) to see if it can reduce methamphetamine cravings and improve thinking. If you are in recovery or still using, you may be able to join.
Shanghai, Shanghai MunicipalityAges 18–60 - NCT07665502Enrolling by invitation
Smartphone app to boost opioid treatment for women facing violence
This study tests a smartphone app (WINGS+++) to help women who have experienced intimate partner violence and trauma improve their engagement with medication for opioid use disorder (MOUD). The goal is to see if the app makes it easier to start and stay on treatment.
New York, New YorkAges 18 years+ - NCT06269627RecruitingPhase 4
Brain activity study for alcohol use treatment
This trial tests how the medication acamprosate affects brain activity in people with moderate to severe alcohol use disorder. It may help researchers understand how this treatment works.
Bethesda, MarylandAges 21–65 - NCT07420283RecruitingPhase 2
Study of Brenipatide for opioid use disorder
This trial tests a new medicine called Brenipatide for people with opioid use disorder who are already taking buprenorphine but still occasionally use non-prescribed opioids. It aims to see if the study drug can help reduce opioid use.
Phoenix, ArizonaAges 18–75 - NCT06067737RecruitingPhase 2
Psilocybin and buprenorphine for opioid use disorder
This study tests whether adding psilocybin (a psychedelic medicine) to buprenorphine (a medication for opioid use disorder) can help people stop using opioids and stay in recovery. It is for people who have already been on buprenorphine but are still using other opioids.
Baltimore, MarylandAges 21–70 - NCT04066192RecruitingPhase 2
Brexpiprazole trial for alcohol use disorder in adults
This study tests whether brexpiprazole can help adults with alcohol use disorder. You must currently not be taking alcohol-focused treatment or alcohol medicines, and you’ll likely complete questionnaires and brain scans.
Aurora, ColoradoAges 21–65 - NCT05408247RecruitingPhase 4
N-acetylcysteine to help people cut back on alcohol
This trial tests whether N-acetylcysteine (a supplement-like medicine) can help people with alcohol use disorder reduce or stop drinking. You may be randomly assigned to receive N-acetylcysteine or a comparison treatment, and you’ll complete interviews during the study.
Sydney, New South WalesAges 18–70 - NCT05452772RecruitingPhase 2
Psilocybin plus niacin to help quit smoking
This Phase 2 study tests whether a psilocybin “session” with niacin can help people quit smoking. It’s for adults who smoke daily and want to quit but have tried and struggled before.
Birmingham, AlabamaAges 21 years+ - NCT05621538Recruiting
Neurofeedback plus brain stimulation for alcohol use disorder
This trial studies whether combining brain “training” (neurofeedback) with noninvasive brain stimulation (TMS) can help people with alcohol use disorder. It may be offered as an additional treatment alongside care you’re already receiving.
Auburn, AlabamaAges 19–65 - NCT05665179Recruiting
Community program for people receiving addiction treatment
This trial is focused on people who are currently getting treatment for substance use disorder. It aims to test community partnership approaches that reduce barriers and improve support during recovery.
Ann Arbor, MichiganAges 18 years+ - 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 - NCT05957159RecruitingEarly Phase 1
Testing an alcohol brain imaging study based on opioid receptor balance
This early-phase study looks at how the brain’s opioid receptor balance may be different in people with alcohol use disorder (AUD), using brain scans and blood testing. It may help researchers understand why some people respond differently to alcohol and related treatments.
New Haven, ConnecticutAges 21–70 - 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+ - NCT05995769RecruitingPhase 2
Psilocybin therapy with talk therapy for alcohol problems
This trial tests whether psilocybin (the active ingredient in magic mushrooms), given with talk therapy, can help people who want to reduce their heavy drinking. It is for people with at least moderate alcohol use disorder who are motivated to change.
Calgary, AlbertaAges 22–65 - NCT05997212Recruiting
Can brain stimulation help with thinking skills in alcohol use disorder?
This study tests if a noninvasive brain stimulation technique called repetitive TMS (rTMS) can improve thinking skills like decision-making and focus in people recovering from alcohol use disorder. You must have been alcohol-free for 8 weeks to 5 years.
Querétaro City, QuerétaroAges 25–59 - 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 - NCT06218706Recruiting
Focused ultrasound for severe opioid addiction
This trial uses focused ultrasound (sound waves aimed at a specific part of the brain) to help people who have severe opioid addiction that hasn't gotten better with other treatments. It may help reduce cravings and support recovery.
Morgantown, West VirginiaAges 22–60 - 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 - NCT06399653Recruiting
Nerve stimulation for alcohol use disorder in veterans
This study tests a non-invasive device that gently stimulates a nerve in your neck (the vagus nerve) to see if it can help reduce alcohol cravings and improve daily functioning. It is designed for veterans who struggle with heavy drinking and want to explore a new treatment option.
San Diego, CaliforniaAges 21–65 - NCT06415721Recruiting
TMS guided by brain scans for alcohol use disorder
This study uses a brain stimulation technique called TMS combined with MRI scans to treat alcohol use disorder. It aims to see if targeting specific brain connections can help reduce drinking.
Palo Alto, CaliforniaAges 25–75
Hear when a new Substance Use Disorders trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for substance use disorders?
- Yes. Clin2 currently lists 419 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.