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
- NCT05704582Recruiting
Avatar vs supportive sessions to cut cannabis use
This study compares two types of talking/learning sessions—one using an “avatar” (computer-based character) and one using regular supportive sessions—to reduce cannabis use. It is meant for adults with psychotic disorders who also meet criteria for cannabis use disorder.
Montreal, QuebecAges 18 years+ - NCT06262958Recruiting
Early help for teen alcohol and substance issues
This study looks at early help for alcohol and substance use in teenagers. The goal is to see if early support can improve outcomes for young people who have been treated at a psychiatric clinic.
KuopioAges 14–19 - NCT05534568Recruiting
Parent support program for families affected by pregnancy substance use
This program aims to help mothers and young children get safer, better support services when substance use occurred during pregnancy. It may help connect you (or your child) to the right community resources and reduce risk of ongoing alcohol or drug exposure.
Oklahoma City, OklahomaAges 18 years+ - NCT07800520RecruitingPhase 1
Brain imaging study for people with opioid use disorder
This study uses a special brain scan (PET) and MRI to look at how a protein in the brain, called CB1 (part of the body's natural pain and reward system), changes when people start treatment for opioid use disorder. It may help doctors understand how buprenorphine works and improve addiction treatments.
New Haven, ConnecticutAges 25–65 - 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+ - 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 - NCT07692984Recruiting
Alcohol and drug use in people with schizophrenia or bipolar disorder
This study looks at how alcohol and substance use affects people with schizophrenia or bipolar disorder. It aims to understand if having these conditions together changes treatment or outcomes.
Bolu, BoluAges 18–65 - NCT07684976Recruiting
Safety of a helmet device using ultrasound for substance use disorder
This study tests a special helmet that uses focused ultrasound to stimulate parts of the brain involved in addiction. It aims to see if the treatment is safe and works for people with moderate to severe substance use disorder who have not gotten enough help from standard medication treatments.
Toronto, OntarioAges 18–70 - NCT04459000Recruiting
Pregnant substance-use support through a prenatal clinic program
This trial is for pregnant people who are dealing with substance use during pregnancy and can receive care at a specific prenatal clinic. It aims to help connect participants to treatment and support resources.
Oklahoma City, OklahomaAges Up to 55 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+ - NCT06701500Recruiting
Study on decision making in alcohol use disorder
This study looks at how people with alcohol use disorder make decisions based on habits, goals, and automatic cues. It may help understand what drives drinking behavior.
DresdenAges 18–65 - NCT06701487Recruiting
Brain learning mechanisms and substance use control
This study looks at how certain learning mechanisms in the brain (called Pavlovian conditioning) influence your ability to control alcohol or drug use. It may help explain why some people have trouble stopping, and could lead to better treatments. You'll fill out questionnaires and likely have a brain scan (MRI).
DresdenAges 18–65 - NCT07590115Enrolling by invitation
Behavioral Patterns and Treatment Success in Substance Use Recovery
This study looks at how behavioral patterns change during residential treatment for substance use disorder. Researchers will track your progress over several weeks to understand what helps people succeed in recovery.
Potrerillos, JaliscoAges 18–60 - 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+ - 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+ - NCT06738953Recruiting
Preventing mental disorders with a self-efficacy course
This trial tests if a course designed to boost your belief in your own abilities can help prevent anxiety, mood, or substance use disorders. It is for young adults who currently feel less confident in handling challenges.
Potsdam, BrandenburgAges 18–30 - NCT06158607Recruiting
PrEP adherence help for women with substance use
This study tests a program to help Black and Hispanic women with substance use disorders take PrEP consistently to prevent HIV. The goal is to see if talking with a health coach can improve PrEP use and reduce HIV risk.
Houston, TexasAges 18–60 - NCT07529327Recruiting
Language support groups for children of caregivers with substance use
This study offers weekly group sessions to help parents or caregivers support their young child's language development. It is designed for caregivers who have sought treatment for substance use or used substances in the past year, and whose child is between 12 and 42 months old and has a language delay.
Eugene, OregonAges 18 years+ - 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+ - NCT07523633RecruitingPhase 2
Semaglutide to help reduce cannabis use disorder
This trial tests whether a medication called semaglutide (used for weight management) can help adults with cannabis use disorder cut down or stop using cannabis. Researchers want to see if it reduces cravings and use while also monitoring overall health.
FrederiksbergAges 18–70 - NCT07512856Recruiting
Support Service for Transgender People Using Substances
This study tests a new support program designed specifically for transgender people who use drugs or engage in chemsex (using drugs during sexual activity). The program aims to reduce health risks and provide safer, more culturally respectful care.
Pathum Wan, BangkokAges 18 years+ - NCT07503067Recruiting
Understanding substance use consequences
This study looks at the experiences and consequences of substance use. It is for people who either use substances, care for someone who does, or have a close friend or family member who does.
Belmont, MassachusettsAges 18 years+ - NCT07490717Enrolling by invitation
Treating PTSD and opioid use in jails
This study tests new ways to screen and treat people in jail who have both post-traumatic stress disorder (PTSD) and opioid use disorder. It aims to help participants with therapy while incarcerated and after release.
Little Rock, ArkansasAges 18 years+
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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 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.