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
- NCT05932745Recruiting
Test of new e-cig ingredients in current adult users
This study tests how new e-cigarette ingredients affect adults who already use e-cigarettes. You may be asked to avoid tobacco and nicotine briefly before sessions so researchers can measure effects more clearly.
New Haven, ConnecticutAges 18 years+ - NCT06582888RecruitingEarly Phase 1
VR attention test for smoking cravings
This study tests whether a virtual reality (VR) program can measure how your brain pays attention to smoking cues. It also involves taking a medication called varenicline (Chantix) to see if it reduces cravings. You may be eligible if you are a daily smoker, have been smoking for at least 3 years, and are not ready to quit in the next month.
San Diego, CaliforniaAges 22 years+ - NCT06695884Recruiting
Finding the best TMS pulse pattern to boost brain reward activity
This study tests different pulse patterns of transcranial magnetic stimulation (TMS), a noninvasive brain stimulation, to see which one best increases activity in brain reward circuits. It may help people who are dependent on nicotine.
Newark, New JerseyAges 18–55 - NCT06837220Recruiting
Smoking cessation program for people in community behavioral health
This study tests a smoking cessation program designed for people who receive care at community behavioral health centers in Chicago. If you're a daily smoker interested in quitting, you may be able to join and get support to help you stop.
Chicago, IllinoisAges 18–26 - NCT06614504RecruitingPhase 2
Nicotine control for dual e-cigarette and cigarette users
This study is testing how to help people who both smoke cigarettes and use e-cigarettes. It looks at ways to control nicotine use to help you quit or cut back.
Providence, Rhode IslandAges 21 years+ - NCT07292883RecruitingPhase 2
Accelerated TMS for smoking cessation
This trial tests whether a rapid form of brain stimulation (TMS) can help people stop smoking. It is designed for adults who are ready to quit within the next month.
Penetanguishene, OntarioAges 18 years+ - NCT06679062RecruitingPhase 2
Suvorexant for alcohol use disorder and PTSD
This study tests whether the sleep medication suvorexant can help people with both alcohol use disorder and PTSD. If you're struggling with drinking, PTSD symptoms, and poor sleep, this trial may offer a new treatment option.
Los Angeles, CaliforniaAges 21–65 - NCT06484075RecruitingPhase 1/Phase 2
Suvorexant for alcohol use disorder: brain effects
This study tests whether the sleep medication suvorexant can help people with alcohol use disorder by looking at its effects on brain activity. Participants will stay in the hospital for about a month, take suvorexant or a placebo, and have brain scans.
Bethesda, MarylandAges 18–75 - NCT06835907Recruiting
Baclofen for anxiety and alcohol use disorder
This trial tests if baclofen can help people with both anxiety and alcohol use disorder. It is an open-label study, meaning everyone knows they are taking the medication. Researchers want to see if it supports people in staying alcohol-free.
Jette, Brussels CapitalAges 18–65 - NCT07214207RecruitingPhase 2
Testing a sleep medicine for alcohol use disorder and stress-related drinking
This trial tests whether a medicine called suvorexant, which is used for sleep, can help people with alcohol use disorder drink less, especially when stressed. You would receive the medicine or a placebo, and researchers will track your drinking and stress levels over several weeks.
Columbus, OhioAges 18–65 - 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+ - NCT03506867Enrolling by invitation
Test program to help recent smokers in Ottawa or Toronto
This trial offers a health program for people age 16+ who smoked recently and live in Ottawa or Toronto. It aims to help with quitting and follow-up over one year, especially for people facing financial hardship or housing instability.
Ottawa, OntarioAges 16 years+ - NCT06335407RecruitingPhase 1
Testing a new under-the-tongue med for alcohol use and trauma
This study tests a new sublingual (under-the-tongue) medication for people with alcohol use disorder who have also had a traumatic life event. It aims to see if the medication can help reduce drinking and related symptoms.
West Haven, ConnecticutAges 21–65 - 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 - NCT04721418Recruiting
Imaging brain changes in cocaine use or health controls
This study uses a brain scan to look at changes in brain connections in people with cocaine use disorder, and compares them with healthy volunteers. It may help researchers understand how cocaine affects the brain and what biological signs could be targeted in the future.
New Haven, ConnecticutAges 21–60 - NCT06405074Recruiting
Ultrasound for Smoking Cessation in Veterans
This study tests if a gentle ultrasound aimed at a specific part of the brain (the insula) can help veterans who smoke tobacco reduce or quit smoking. The research is for veterans who smoke heavily and are motivated to think about quitting but are not currently in treatment.
Washington D.C., District of ColumbiaAges 18–75 - NCT05445804RecruitingPhase 1
Oral cannabidiol (CBD) to help you quit tobacco
This Phase 1 study tests whether taking oral CBD can help people quit tobacco. It also checks safety and helps researchers learn how people respond to the treatment while they practice quitting.
Baltimore, MarylandAges 18–65 - NCT05766553Recruiting
Virtual reality mindfulness to reduce cigarette cravings
This trial tests whether guided mindfulness meditation in virtual reality can lower cigarette cravings and help people quit smoking. It may help by reducing urges to smoke during stressful moments.
IteuilAges 18–75 - NCT06789250Recruiting
Online therapy for mental health and alcohol use issues
This trial tests an internet-based cognitive behavioral therapy program designed for people who struggle with both mental health symptoms (like depression or anxiety) and problematic alcohol use. The goal is to see if this approach can help improve both issues at the same time, conveniently from home.
LinköpingAges 18 years+ - NCT03764098RecruitingPhase 2
Guanfacine to reduce heavy drinking in adults with alcohol use disorder
This Phase 2 study tests whether guanfacine can reduce drinking in women and men who drink heavily and meet criteria for alcohol use disorder. It also looks at how the medicine affects drinking patterns in a controlled setting.
New Haven, ConnecticutAges 21–70 - NCT07095205RecruitingPhase 4
Nicotine's effect on depression in brain imaging study
This trial uses a special brain scan to see how nicotine might help treat depression. It compares people with depression to healthy volunteers to understand how nicotine affects brain chemistry related to mood.
Stony Brook, New YorkAges 18–65 - NCT05957848RecruitingPhase 2
Guanfacine for teens with cannabis use problems
This Phase 2 study tests whether extended-release guanfacine can reduce cannabis use in adolescents and young adults. It may help by targeting brain pathways that can drive cravings or continued use.
Parkville, VictoriaAges 12–25 - NCT06218056RecruitingPhase 2
CBD for reducing cigarette smoking in a treatment center
This study tests whether a daily dose of cannabidiol (CBD) can help people who smoke at least 5 cigarettes a day cut down or quit. It is for people staying at a treatment center in Los Angeles where cannabis use is not allowed.
North Hollywood, CaliforniaAges 18–65 - NCT05838274Recruiting
Study of alcohol effects and brain scans in bipolar disorder
This study gives a controlled amount of alcohol and uses brain MRI scans to understand how alcohol affects people with bipolar disorder. It may help researchers find brain and behavior patterns that explain differences in alcohol responses.
Austin, TexasAges 21–26
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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.