Clinical trials
Tobacco clinical trials
Below are recruiting tobacco clinical trials, each written for real people, not researchers. We’re tracking 190 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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 - NCT06030674Recruiting
Measuring Tobacco and Cannabis Smoke Exposure in Nonsmokers
This study measures how much tobacco and cannabis smoke nonsmokers are exposed to in their daily lives. It may help understand health risks from secondhand smoke.
San Francisco, CaliforniaAges 21–50 - 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 - 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 - 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+ - NCT06470321Recruiting
Predictors of nicotine relapse in smokers
This study looks at factors that might predict whether someone will start smoking again after quitting. It is for adults who smoke daily, want to quit, and are not on any medications.
NicosiaAges 18–60 - 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 - NCT06543407Recruiting
Safer smoking options for people with mental illness
This study offers a way to reduce harm from smoking for people with mental health conditions who are not ready to quit. It tests if switching to a less harmful product can help improve health without requiring you to stop smoking completely.
Louisville, KentuckyAges 21 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+ - 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+ - 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+ - 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+ - NCT06617312RecruitingPhase 2
Cytisinicline and brain response to smoking cues
This study tests how a medicine called cytisinicline (similar to a plant-based stop-smoking aid) affects brain activity when you see or think about smoking. It may help researchers understand how the medicine works, even if you aren't ready to quit right now.
Los Angeles, CaliforniaAges 18–65 - NCT06673225Recruiting
INSPIRE respiratory health program in Botucatu
This study tests a respiratory health program for adults with breathing symptoms and a history of smoking. It aims to see if the program improves lung health and quality of life.
Botucatu, São PauloAges 18 years+ - 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 - NCT04297592Enrolling by invitationPhase 4
Antibiotics to prevent infection after hip or knee replacement
This trial studies whether giving antibiotics before and/or after surgery can lower the chance of a serious joint infection after elective hip or knee replacement. It’s aimed at people at higher risk for infection.
Iowa City, IowaAges 18–99 - 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 - NCT06746623Recruiting
Non-endoscopic screening for Barrett's in veterans without reflux
This trial tests a new, non-endoscopic screening method for Barrett's esophagus (a condition that can lead to cancer) in veterans who do not have chronic acid reflux. It aims to find early signs of the condition using a simple swallowable device, potentially avoiding the need for a traditional endoscopy.
Cleveland, OhioAges 40–85 - NCT06747871Recruiting
Opioids, low nicotine cigarettes, and chronic pain study
This study tests if using cigarettes with very low nicotine can help people with chronic pain who are on buprenorphine for opioid use disorder. It aims to see if this approach reduces smoking and helps you think about quitting.
Durham, North CarolinaAges 21 years+ - NCT06762210Recruiting
Quit smoking with AI and dental health checks
This trial tests whether a smartphone app that uses artificial intelligence (AI) can help you quit smoking by looking at how it affects your dental health. If you smoke at least 5 cigarettes a day and want to quit, you may be able to join.
Fayoum, Alexandria GovernorateAges 21–65 - NCT06784817Recruiting
Gum health in smokers and heated tobacco users
This study compares gum health in three groups: daily cigarette smokers, exclusive users of heated tobacco products (like IQOS), and never-smokers. It aims to see if heated tobacco has different effects on gums compared to traditional smoking.
Budapest, Pest CountyAges 18 years+ - NCT06832085RecruitingPhase 4
Comparing stop-smoking medications for adult smokers in Ontario
This study compares three different stop-smoking treatments—nicotine patches, cytisine, or varenicline—to see which works best. If you want to quit or cut down in the next six months, this could help you find the right medication.
Ottawa, OntarioAges 18 years+ - NCT06901713Recruiting
Help quitting smoking with CBT and mindfulness
This trial tests a smoking cessation program that combines cognitive behavioral therapy (CBT) and mindfulness audio to help you quit or reduce smoking. You'll receive digital materials to support you.
HangzhouAges 18–65 - 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+
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Common questions
- Are there clinical trials for tobacco?
- Yes. Clin2 currently lists 190 recruiting tobacco 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 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 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.