Clinical trials
Nicotine Use Disorder clinical trials
Below are recruiting nicotine use disorder clinical trials, each written for real people, not researchers. We’re tracking 156 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03713424RecruitingPhase 2
Brain scan study of an antibiotic for drug addiction
This study uses an MRI brain scan to see how taking clavulanic acid affects brain activity related to drug addiction. It may help researchers understand whether this medicine could change how addiction-related cues affect the brain.
Columbia, MissouriAges 18–65 - NCT03948893Recruiting
Behavior program to help you quit nicotine
This study tests a structured counseling/behavior treatment to help people who smoke become nicotine-free. If you’re interested in quitting, you may be asked to complete questionnaires and follow a quit plan as part of the research.
Columbia, MissouriAges 18 years+ - NCT04084860RecruitingPhase 2
Brief medicine trial to help reduce heavy alcohol drinking
This Phase 2 study tests a brief medication approach meant to reduce “problem drinking.” It may help people cut back or stop alcohol use by adjusting brain signaling related to drinking cravings and urges.
New York, New YorkAges 21–70 - NCT04770025RecruitingPhase 2
Brain stimulation with therapy for risky alcohol use
This study tests whether a non-invasive brain stimulation device can make standard psychotherapy work better for people who drink in a risky way. It’s designed for community participants who are not already in alcohol-use treatment.
Albuquerque, New MexicoAges 21–60 - NCT05028062RecruitingPhase 4
Naltrexone injections for people who want to cut alcohol drinking
This Phase 4 study tests whether naltrexone injections can help people with alcohol use disorder (AUD) reduce or stop heavy drinking. You may get two injections over 8 weeks, and you can join if you meet specific drinking pattern and eligibility rules.
Philadelphia, PennsylvaniaAges 18–65 - NCT05062369Recruiting
Brain stimulation plus training to support alcohol abstinence
This study tests whether a combination of brain stimulation (tDCS) and cognitive training can help people with alcohol use disorder stay abstinent. You may be included if you are currently not drinking and can commit to the program timeline.
Minneapolis, MinnesotaAges 18–65 - NCT05178069RecruitingPhase 2
Probiotic supplement study for alcohol use disorder and liver injury
This Phase 2 trial studies whether a probiotic (LGG) can improve health in people with alcohol use disorder and alcohol-related liver injury. It’s not an alcohol treatment study, so participants are mainly joining to see how the supplement affects the body and liver-related outcomes.
Louisville, KentuckyAges 21–65 - NCT05929677RecruitingEarly Phase 1
Study tests effects on impulsivity and how alcohol feels
This early-phase study looks at how alcohol affects impulsivity (tendency to act quickly) and people’s subjective experiences. You may be able to join if you drink regularly and meet the study safety rules.
Boston, MassachusettsAges 21–25 - NCT06494891RecruitingPhase 2
Understanding motivation for IV alcohol drinking
This study looks at why people with alcohol use disorder choose to drink alcohol given through an IV. The goal is to better understand the motivation behind drinking, which could help improve treatments.
Los Angeles, CaliforniaAges 21–65 - NCT06496191Recruiting
Fecal transplant for alcohol use in cirrhotics
This trial tests whether a fecal microbiota transplant (FMT) can help people with alcohol-related cirrhosis who are still drinking. It aims to see if FMT can reduce alcohol cravings and improve liver health.
New Delhi, National Capital Territory of DelhiAges 18–70 - NCT06784908Recruiting
Stress and pain study for people living with HIV
This study looks at how stress affects pain in people with HIV. It may help find better ways to manage pain in this group.
New Haven, ConnecticutAges 18–68 - NCT06786325RecruitingPhase 2
Psilocybin treatment study for opioid use disorder
This trial tests whether psilocybin can help people recovering from opioid use disorder while living at a residential treatment center. If you are already taking buprenorphine/naloxone (Suboxone), methadone, or have received Sublocade, this study may be an option for you.
Philadelphia, PennsylvaniaAges 18–60 - NCT06810310RecruitingPhase 2
Psilocybin for motivation in opioid use disorder
This study tests whether a single dose of psilocybin (the active ingredient in magic mushrooms) can help people with opioid use disorder stay motivated in recovery. It uses brain scans to see how psilocybin affects brain areas linked to motivation.
Philadelphia, PennsylvaniaAges 18–60 - NCT06899594RecruitingEarly Phase 1
Psilocybin for quitting methamphetamine
This trial tests whether psilocybin (a psychedelic medicine) can help people quit methamphetamine. You'll receive counseling before, during, and after the drug session, and your progress will be followed for several months.
Shreveport, LouisianaAges 25–65 - NCT07028983Recruiting
Music therapy for drug and alcohol addiction recovery
This trial tests if adding music therapy to standard addiction treatment helps people recover from substance use disorders. It is for adults who have completed detox and are not currently going through detox.
ViennaAges 18 years+ - NCT07118618RecruitingPhase 2
Probenecid for alcohol cravings and drinking
This study tests if the medication probenecid can help reduce cravings for alcohol and the amount you drink. It is for people who drink heavily and have moderate to severe alcohol use disorder.
Providence, Rhode IslandAges 18 years+ - NCT07202039Recruiting
E-Cigarettes for Smokers on Buprenorphine
This study tests whether switching to electronic cigarettes can help reduce harm for people with opioid use disorder who are on buprenorphine and smoke daily. The goal is to see if e-cigarettes are a safer option than continuing to smoke regular cigarettes.
Greenville, South CarolinaAges 21 years+ - NCT07225777RecruitingPhase 2
THC's effects on brain and behavior by sex
This study looks at how THC affects men and women differently, focusing on brain activity and behavior. It may help understand why some people react differently to cannabis.
Charleston, South CarolinaAges 21–45 - NCT07341230Recruiting
Deep brain stimulation for alcohol addiction
This trial tests if deep brain stimulation can help people with severe alcohol addiction who haven't been helped by other treatments. It involves implanting a device to stimulate brain areas linked to addiction.
Cambridge, CambridgeshireAges 18–60 - NCT06043362Recruiting
Nicotine pouches for daily smokers
This study tests if nicotine pouches can help daily smokers reduce how many cigarettes they smoke. You'll try nicotine pouches, and researchers will track your progress.
Hershey, PennsylvaniaAges 21–70 - NCT06381180RecruitingPhase 1/Phase 2
Cannabis for Veterans with PTSD
This study is testing whether cannabis can help veterans with PTSD feel better. It is for veterans who have used cannabis before and currently have PTSD symptoms.
Detroit, MichiganAges 19–69 - NCT03540758RecruitingPhase 2
Study of how brain sugar control channels affect blood sugar
This Phase 2 study tests how certain channels in the brain help control how your body makes and releases sugar (glucose). It may help explain blood sugar problems in people with type 2 diabetes and healthy volunteers.
The Bronx, New YorkAges 21–70 - NCT03935646RecruitingPhase 2
Test of Adderall’s short-term effects in college students with ADHD
This study measures how stimulant medication (Adderall) affects college students with ADHD in the short term. It compares people with ADHD to students without ADHD to see what changes you may notice during the study.
Laramie, WyomingAges 18–29 - NCT07712887Recruiting
Studying how IQOS users puff across device models
This study looks at how people who regularly use IQOS inhale from different versions of the device. It aims to understand how the feeling and pattern of use change between models.
Beirut, BeirutAges 18–65
Hear when a new Nicotine Use Disorder trial opens
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Common questions
- Are there clinical trials for nicotine use disorder?
- Yes. Clin2 currently lists 156 recruiting nicotine use disorder 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 nicotine use disorder 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 nicotine use disorder 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.