Clinical trials
Tobacco Use Disorder clinical trials
Below are recruiting tobacco use disorder clinical trials, each written for real people, not researchers. We’re tracking 118 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05974202Recruiting
Brain stimulation and therapy for cocaine use
This study tests a combination of brain stimulation (rTMS) and talk therapy (CBT) to help people reduce cocaine use. It's for adults who want treatment and use cocaine at least once a week.
New York, New YorkAges 22–65 - NCT06584448Recruiting
Drinking, acetate, and stress study
This study looks at how acetate (a substance produced when the body breaks down alcohol) affects stress and drinking. It tests if giving acetate can help people with alcohol use disorder (AUD) reduce their drinking.
New Haven, ConnecticutAges 18–60 - 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+ - 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 - 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+ - 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 - NCT05855668Recruiting
Study how brain and behavior differ in alcohol and cannabis use
This study looks at how people’s thoughts, brain-related measures, and behaviors differ between alcohol use disorder and cannabis use disorder. You may be asked to join group psychotherapy and complete assessments, which could help improve how care is planned for people like you.
Toronto, OntarioAges 18 years+ - 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 - 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 - NCT06225232RecruitingPhase 2
Psilocybin for cannabis use disorder
This trial tests whether a single dose of psilocybin (a psychedelic compound) can help people with moderate to severe cannabis use disorder reduce or stop their cannabis use. You will receive the drug in a supervised setting and have follow-up check-ins.
Hamilton, OntarioAges 18–65 - NCT06239350Recruiting
Young adult tobacco and cannabis co-use study
This study tests a program to help young adults who use both nicotine and cannabis products reduce or quit nicotine use. If you are between 18 and 25, use nicotine products at least 20 days a month and cannabis at least 10 days a month, and want to quit nicotine, you may be eligible.
Charleston, South CarolinaAges 18–25 - 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 - 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+ - NCT06534047RecruitingPhase 4
Brain stimulation or nicotine patch to help you quit smoking
This study tests whether a brain stimulation treatment called rTMS can help people with psychiatric conditions quit smoking. You will be randomly assigned to get either rTMS or a nicotine patch, and your progress will be tracked to see which treatment works better.
Toronto, OntarioAges 18–70 - NCT06688539RecruitingPhase 4
Quitting e-cigarettes in adults who also use cannabis
This trial tests if varenicline, a stop-smoking medication, can help people ages 18 to 40 quit e-cigarettes while also using cannabis. It's designed for regular e-cigarette users who want to quit and who use cannabis at least 10 days per month.
Charleston, South CarolinaAges 18–40 - 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 - NCT06712602RecruitingPhase 1
Testing PT150 for Alcohol Use Disorder
This study tests whether a drug called PT150 can help people with moderate to severe alcohol use disorder who are not currently seeking treatment. You will be asked to stay abstinent from alcohol for short periods and attend sessions to see how PT150 affects your body and alcohol cravings.
Lexington, KentuckyAges 21–55 - NCT06798324RecruitingPhase 4
Brain stimulation plus smoking cessation medication for quitting smoking
This trial tests whether combining brain stimulation (tDCS) with a smoking cessation medication (varenicline) helps people quit smoking. You would attend daily visits for two weeks.
Toronto, OntarioAges 18–85 - NCT06883162RecruitingPhase 3
A study to help people stop smoking tobacco and reduce cannabis use
This study tests whether a medication called varenicline (or a placebo) can help people who use both tobacco and cannabis to quit or cut back. It takes place in South Carolina and lasts 12 weeks.
Charleston, South CarolinaAges 18 years+ - NCT06922617Recruiting
E-cigarettes vs. Nicotine Replacement for Smoking in Substance Use Treatment
This study compares e-cigarettes to nicotine replacement therapy (like patches or gum) to help people who are in treatment for substance use disorder (like drugs or alcohol) quit or reduce smoking. It aims to find a safer way to cut back on cigarettes.
Charleston, South CarolinaAges 21 years+ - NCT06930547Recruiting
Smoking cessation education for recovery
This study tests whether education classes can help people who are in recovery from mental health issues quit smoking. It is for people registered with a Community Mental Health Center who smoke daily.
Erzurum, ErzurumAges 18 years+ - NCT07281261Recruiting
Nerve stimulation for alcohol use disorder
This study tests whether a mild nerve stimulation device (tAN) can help reduce alcohol cravings and withdrawal. It's for people with moderate to severe alcohol use disorder who are going through withdrawal and do not use tobacco.
Houston, TexasAges 18–64 - NCT07466875Recruiting
Ear stimulation for nicotine withdrawal in psychiatric patients
This trial tests whether gentle electrical stimulation on the ear can help relieve nicotine withdrawal symptoms for smokers who are in a psychiatric hospital and must stop smoking. It is added on top of standard nicotine replacement therapy.
Nantou CityAges 18–65 - NCT07568483Recruiting
Web-based smoking cessation support program
This study tests TUBSIS 2.0, a digital program designed to help you quit or cut back on smoking. You'll use it on your computer, tablet, or phone, and researchers will track how it affects your smoking habits over time.
ZurichAges 18 years+
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Tobacco Use Disorder trials by city
Studies with a site in or near these metro areas.
Tobacco Use Disorder trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for tobacco use disorder?
- Yes. Clin2 currently lists 118 recruiting tobacco 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 tobacco 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 tobacco 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.