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
- 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+ - NCT07721883Recruiting
Social media and tobacco use in teens
This study looks at how social media affects teens' interest in tobacco products like e-cigarettes and vapes. Researchers want to talk with high school students to understand these influences and help prevent tobacco use.
Los Angeles, CaliforniaAges 14–17 - 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+ - NCT05487807RecruitingPhase 1
Quit-smoking program for people with HIV in Uganda and Zambia
This study tests a tailored quit-smoking (tobacco cessation) program for people living with HIV in Uganda and Zambia. It aims to help you reduce or stop tobacco use in a way that fits your needs and local setting.
KampalaAges 18 years+ - NCT05660798Recruiting
Switching from cigarettes to heat-not-burn to protect heart arteries
This study looks at whether switching from regular cigarettes to a tobacco heating product slows buildup of plaque in the heart arteries. You’d be guided through smoking change and monitored using heart scans, to see if artery plaque stays the same or improves.
WarsawAges 18–75 - NCT05733767RecruitingPhase 2
Nurse-led help to quit smoking after heart or lung illness
This Phase 2 study tests a nurse practitioner–led program and medicine plan to help you stop smoking after certain heart or lung conditions. It may help you quit and stay smoke-free, while using lab testing (like breath measurements) to confirm progress.
Springfield, MassachusettsAges 18 years+ - NCT05786547RecruitingPhase 3
Varenicline plus support to help quit tobacco in HIV care
This Phase 3 trial tests a quit-smoking program using varenicline (a medicine) plus additional support, for people with HIV who currently use tobacco. It may help you stop smoking or using tobacco and stay quit with safer, guided care.
Aurora, ColoradoAges 18 years+ - NCT05859451Recruiting
Heated tobacco product study for surgically treated leg fractures
This study looks at whether a tobacco heating system (instead of cigarettes) affects how well a surgically repaired tibia or femur fracture heals. It mainly targets smokers with a certain smoking history who do not want to join free smoking-cessation seminars.
Tübingen, Baden-WurttembergAges 18 years+ - 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 - NCT06170437Recruiting
Smoke-free Home Study in Subsidized Housing
This study looks at ways to help people who live in subsidized housing make their homes smoke-free. You may be able to join if you are a current smoker and smoke inside your home.
San Francisco, CaliforniaAges 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 - NCT06488443Recruiting
Yoga for reducing tobacco cravings
This study tests whether yoga can help men who are dependent on tobacco reduce their cravings. If you are a male tobacco user aged 18 to 65, this trial may offer a non-medicine way to manage your urge to smoke or chew tobacco.
Bengaluru, KarnatakaAges 18–65 - NCT06609369RecruitingPhase 2
Sleep and smoking relapse study
This study tests whether improving sleep can help people quit smoking and avoid relapse. It uses brain scans, a quitting medication, and counseling.
New Haven, ConnecticutAges 18–65 - 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+ - 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 - NCT06862050Recruiting
Testing a smoking cessation program for tobacco users
This trial tests a program to help people quit tobacco. It focuses on offering support to daily tobacco users living in the Augusta or Central Savannah River Area.
Augusta, GeorgiaAges 18 years+ - NCT07107139Recruiting
Lab study on smokeless tobacco for daily smokers
This study tests how people who smoke daily react to a new type of smokeless tobacco product (like snus or dip) after trying it in a lab. You must have already taken part in our earlier auction study and be open to using a non-combusted tobacco product.
Buffalo, New YorkAges 21 years+ - NCT07129590Recruiting
Trauma-informed care to help pregnant people quit smoking
This study tests whether a trauma-informed care approach can help pregnant people who have experienced trauma to quit smoking. The study involves clinicians and patients working together to improve smoking cessation support.
San Francisco, CaliforniaAges 18 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+ - NCT06678789Recruiting
Testing low vs high nicotine pouches for smokers
This study compares how low and high nicotine pouches affect adult smokers who want to try a tobacco-free option. You'll attend two visits in Charleston to check health markers.
Charleston, South CarolinaAges 21 years+ - NCT04949464Recruiting
Smoking quit coaching plus lung scans for people with HIV
This study tests a behavior-change program to help people with HIV quit smoking, along with routine low-dose lung CT scans to find warning signs early. It’s a feasibility study, meaning the main goal is to see if the approach is practical and acceptable, and if people can follow through.
La Jolla, CaliforniaAges 45–80 - NCT07503925RecruitingPhase 4
THRIVE Study: Oral nicotine pouches and health
This study looks at how oral nicotine pouches (a type of smokeless tobacco product) affect health. If you use these pouches daily and meet a few other conditions, you may help researchers understand their public health impact.
Columbus, OhioAges 21 years+ - NCT07439471Recruiting
Study on tobacco and cannabis co-use in young adults
This study looks at why and how young adults use both tobacco and cannabis together. It may help understand patterns of use and improve future health programs.
Buffalo, New YorkAges 18–30 - NCT06448351Recruiting
Changing nicotine in e-cigarettes to reduce harm
This study tests how changing the amount of nicotine in e-cigarettes affects people's behavior. It looks at two groups: young adults who already vape and older adult smokers who want to try vaping, to see if different nicotine levels can help reduce smoking or make vaping safer.
Columbus, OhioAges 21–65
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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.