Clinical trials
Substance Use clinical trials
Below are recruiting substance use clinical trials, each written for real people, not researchers. We’re tracking 220 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07516301Recruiting
Substance use screening for adult childhood cancer survivors
This study tests whether adding a quick substance use survey and a short follow-up conversation into your regular clinic visits is helpful. It is designed for people who were treated for childhood cancer and are now adults.
Memphis, TennesseeAges 15 years+ - NCT06929520Recruiting
ENDS intervention for rural Hawaiian youth
This trial tests a culturally tailored program to reduce e-cigarette (ENDS) use among rural middle school students in Hawaii. It may help if you are a 6th to 8th grader on Hawaii Island.
Honolulu, HawaiiAges 10–14 - 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 - NCT07318480Recruiting
tDCS for Cocaine Use Disorder
This study tests whether a non-invasive brain stimulation method called tDCS can help reduce cocaine use. You would receive several sessions of mild electrical current applied to your scalp, which may help control cravings and improve your ability to stay abstinent.
New York, New YorkAges 18–60 - NCT06477848Enrolling by invitation
Improving care for teens with opioid use disorder in pediatric clinics
This study looks at how to better support teens with opioid use disorder in pediatric primary care. It involves training clinic staff and gathering feedback from both providers and patients.
Indianapolis, IndianaAges 12 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+ - 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 - NCT04331704RecruitingPhase 4
Alcohol and sexual health program for men at risk of HIV
This study tests an alcohol- and sexual-health program to help reduce HIV risk in men who recently had condomless sex and drink heavily. It may help you by offering structured support around drinking and HIV prevention (PrEP).
Gainesville, FloridaAges 18–30 - NCT05515354RecruitingPhase 4
Smoking quit plan matched to your menstrual cycle phase
This Phase 4 study tests a smoking-quit treatment plan timed to your menstrual cycle. It may help you quit smoking and learn how quitting support works for people who menstruate regularly.
Toronto, OntarioAges 18–40 - NCT06432985Recruiting
Smoking Cessation Program for Veterans with Cancer
This study tests a video-based program to help Veterans who smoke and are being treated for cancer or lung cancer screening to quit. If you're a VA patient in San Francisco and currently smoke, you may be able to join.
San Francisco, CaliforniaAges 18 years+ - NCT06961838Recruiting
Breathing muscle training for substance use recovery
This study tests whether a breathing exercise device can help people recovering from substance use disorder. It may improve how well your breathing muscles work and support your overall treatment.
Istanbul, TurkeyAges 18 years+ - NCT06103370Recruiting
HIV prevention via telemedicine and peer networks
This study tests how well a program combining telemedicine (virtual doctor visits) and peer support can help prevent HIV among people who inject drugs. You'd get trained, attend weekly group sessions, and invite a friend or partner to also take part.
Baltimore, MarylandAges 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+ - NCT07695818Recruiting
Land-based program for young parents to prevent substance misuse
This trial tests a program called Returning to the Land, which helps young parents aged 14-19 who live near the Rocky Boy Reservation. The goal is to see if connecting with land and culture can reduce substance misuse and support healthy families.
Box Elder, MontanaAges 14–19 - 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+ - NCT05505188Recruiting
Predicting long-term pain after head and neck radiotherapy
This study looks for ways to predict and improve pain you may have months after radiotherapy for first head and neck cancer. It may help doctors better anticipate pain and support patients during recovery.
CaenAges 18 years+ - NCT06617949RecruitingEarly Phase 1
Pain Control Study for New Mothers on Opioid Medication
This study looks at better ways to manage pain after childbirth for mothers who are taking medication for opioid use disorder. It aims to find which pain control method works best and is safest for you and your baby.
Milwaukee, WisconsinAges 18–40 - NCT06804525Recruiting
Adapting a mental health survey in Hong Kong
This study adapts a mental health survey for Hong Kong adults. It is open to adults aged 25 and older who live in randomly selected households and can speak Chinese or English.
Hong KongAges 25 years+ - NCT07460973Recruiting
Wellness program for American Indian youth
This study tests a program designed to improve health and reduce disparities for American Indian youth ages 12–18. It includes educational activities and cultural teachings.
Bozeman, MontanaAges 12–18 - NCT06370481Recruiting
HIV and addiction training program for Alabama clinics
This study tests a program to help people living with HIV in Alabama who also struggle with opioid or stimulant use. It takes place at your HIV clinic and checks whether a new approach to addiction care can improve your health.
Birmingham, AlabamaAges 18 years+ - NCT04957628Recruiting
Tailored interventions for people in hospital medical wards
This study tests whether personalized (tailored) interventions can help patients during their hospital stay in medical wards. You may be invited to participate if you can understand the study information and your stay is for a medical issue, not a major injury or planned surgery.
OsloAges 18 years+ - NCT07439783Enrolling by invitation
Testing a training program to improve staff retention in child welfare
This trial tests a new training model designed to help keep child welfare supervisors and their teams (including case workers and peer supporters) happy and on the job, so they can better help families. It focuses on agencies that are part of Ohio START.
Columbus, OhioAges 18 years+ - NCT05943171Recruiting
App-based CBT for substance dependence and relationship aggression
This study tests an app-guided version of CBT (a structured talk-therapy approach) against standard CBT to help people with substance dependence and recent verbal aggression in an intimate relationship. You may be screened to see if you fit both the substance use and relationship aggression parts of the trial.
Rochester, New YorkAges 18–65 - NCT05992272Recruiting
How cues affect drinking and smoking habits
This study looks at how certain cues (like seeing a drink or a cigarette) trigger cravings and behavior in people who drink alcohol or smoke. Understanding this may help improve addiction treatments.
BerlinAges 16–65
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Common questions
- Are there clinical trials for substance use?
- Yes. Clin2 currently lists 220 recruiting substance use 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 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 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.