Clinical trials
Tobacco Use clinical trials
Below are recruiting tobacco use clinical trials, each written for real people, not researchers. We’re tracking 103 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06234722Enrolling by invitation
How Prices Affect Tobacco Use in Appalachia
This study looks at how the price of different tobacco and nicotine products might change how much people in Appalachia buy or use them. If you use nicotine or tobacco daily and don't plan to quit soon, you may be able to join.
Lexington, KentuckyAges 21 years+ - NCT06438549Recruiting
Community health workers help pregnant smokers quit
This study tests whether adding a community health worker to your prenatal care team can help pregnant women quit smoking. It's for women who are ready to make a quit plan and are getting care at certain hospitals.
Loma Linda, 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 - 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 - NCT06881069Recruiting
Text-based tobacco cessation support for low-income Utahns
This study tests a text-message program to help people who use tobacco quit. It's designed for adults living in low-income areas in Utah who visit certain clinics.
Salt Lake City, UtahAges 18 years+ - 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+ - NCT07148232RecruitingPhase 4
Helping people experiencing homelessness quit smoking
This study tests an extended program to help people who are homeless and smoke at least 5 cigarettes a day quit smoking. It provides nicotine replacement therapy (like patches or gum) and support over time.
San Francisco, CaliforniaAges 18 years+ - NCT06042361Enrolling by invitation
Making smoke-free housing fairer for residents
This study aims to make smoke-free policies more equitable in affordable housing communities. If you live in one of the six selected properties in Massachusetts, Maryland, or New York, you may be able to participate in a survey or a group discussion.
Boston, MassachusettsAges 18 years+ - 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+ - 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 - NCT06609109RecruitingPhase 1
Testing how cannabis affects e-cigarette use
This study is for daily e-cigarette users who also use cannabis at least once a week. It tests how cannabis affects vaping behavior. Researchers want to see if using cannabis changes how much or how people vape.
Baltimore, MarylandAges 21 years+ - NCT07489443Recruiting
Helping pregnant women reduce tobacco and cannabis use
This study is testing a program to help pregnant women and new mothers cut back on or quit using tobacco and cannabis. It’s designed to see if the program is easy to use and helps improve health for both mom and baby.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT06693700Recruiting
Using an air quality monitor to help make your home smoke-free
This study tests whether an indoor air quality monitor can help people keep their homes smoke-free. It is for MSK patients who currently smoke and want to reduce smoke exposure indoors.
Basking Ridge, New JerseyAges 18 years+ - NCT06988371Enrolling by invitation
Study on smoking habits in a simulated tobacco marketplace
This study looks at how people who smoke occasionally or daily choose and use cigarettes in a simulated online marketplace. It may help researchers understand buying and smoking behaviors better.
Lexington, KentuckyAges 18 years+ - 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+ - NCT06986993RecruitingPhase 4
Semaglutide for smoking and weight in people with obesity
This study tests whether the medication semaglutide (similar to Ozempic/Wegovy) can help people who smoke and have obesity cut down on cigarettes, even if they aren't ready to quit. Participants will receive the drug and be monitored for changes in smoking habits and health.
Oklahoma City, OklahomaAges 18–65 - NCT06535867Recruiting
Comparing phone-based vs. in-person mouth cancer screening in rural India
This study compares two ways to find early signs of mouth cancer or conditions that could lead to cancer. One method uses a simple phone-based health check, and the other uses standard in-person screening. People in rural areas of Varanasi who are at risk—such as those who use tobacco or have mouth sores—may be able to join.
New York, New YorkAges 18 years+ - NCT05415371Enrolling by invitation
Smoking help program for pregnant women in Medicaid
This study tests a smoking-cessation program for pregnant people who smoke while using Medicaid. It may help reduce smoking during pregnancy through structured support calls.
Oklahoma City, OklahomaAges 18–105 - NCT06609083RecruitingPhase 1
How cannabis affects cigarette smoking
This study looks at how cannabis affects cigarette smoking habits. If you smoke every day and also use cannabis weekly, researchers want to see if cannabis changes how much you smoke.
Baltimore, MarylandAges 21 years+ - NCT04812613Enrolling by invitation
Study of cannabis use and mental health support for Ottawa youth
This study looks at tobacco use alongside other addictions in young people in Ottawa who have unstable housing and mental health concerns, and who use cannabis or have used it before. It may offer support or new approaches aimed at reducing health risks related to tobacco and substance use.
Ottawa, OntarioAges 16 years+ - NCT06098144RecruitingPhase 4
Smoking cessation program for construction workers
This study tests a program to help construction workers quit smoking. It involves safety managers receiving training to support workers in their quit attempts.
Miami, FloridaAges 18 years+ - NCT06851936Recruiting
Help quitting tobacco for cancer survivors and their caregivers
This study tests a program to help people with a history of cancer and their family caregivers quit using tobacco or nicotine products. You may help researchers learn what works best for supporting quitting in this group.
Gainesville, FloridaAges 18 years+ - 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 - NCT05999383RecruitingPhase 2
Marijuana and tobacco use study
This trial looks at how marijuana and tobacco work together in your body. If you regularly use both cannabis and tobacco, you may help researchers understand their combined effects.
San Francisco, CaliforniaAges 21–65
Hear when a new Tobacco Use trial opens
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Tobacco Use trials by city
Studies with a site in or near these metro areas.
Tobacco Use trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for tobacco use?
- Yes. Clin2 currently lists 103 recruiting tobacco 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 tobacco 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 tobacco 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.