Clinical trials
Smokers clinical trials
Below are recruiting smokers clinical trials, each written for real people, not researchers. We’re tracking 59 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07707063RecruitingPhase 4
Gum disease treatment with I-PRF, iodine, or laser in smokers and non-smokers
This trial tests whether adding I-PRF (a concentrate from your own blood), povidone-iodine, or laser treatment to standard deep-cleaning helps smokers and non-smokers with gum disease. You may qualify if you have moderate to severe gum disease with at least one bleeding pocket in each area of your mouth.
Tunis, Mont FleuryAges 18 years+ - NCT07282756Recruiting
Lovastatin gel for gum disease treatment
This study tests whether a lovastatin gel applied to the gums (after a deep cleaning) helps treat gum disease better than cleaning alone. Participants must not have had previous gum treatment or antibiotics recently, and can be a smoker or non-smoker.
Bielsko-Biala, Silesian VoivodeshipAges 18–59 - NCT07285122RecruitingPhase 1
Inhaled study drug for healthy smokers and people with COPD
This study tests an inhaled medication called RB042 in healthy adults, healthy smokers, and people with COPD. It aims to see how the drug works in the body and whether it is safe, which could help in developing a new treatment for COPD.
Nedlands, Western AustraliaAges 18–80 - NCT03862924Recruiting
Study tests standardized e-cigarette effects in people with HIV who smoke
This study looks at how a specific e-cigarette affects health in people who have HIV and smoke cigarettes regularly. You might be able to join if you meet smoking, HIV care, and safety requirements and are not planning to quit right away.
Providence, Rhode IslandAges 18 years+ - NCT07058974RecruitingPhase 1
Exercise and medication study for inflammation in older smokers
This trial tests whether a medication called rapamycin, combined with exercise, can lower inflammation in the body. It may help people aged 65-80 who smoke or used to smoke and have a body mass index between 25 and 32.
New York, New YorkAges 65–80 - NCT07562295Recruiting
How Smoking Affects Gum Health
This study compares gum and tooth health in young adults who smoke cigarettes, e-cigarettes, or hookah. Researchers want to understand how each type of smoking affects your mouth and gums differently.
Homs, Homs GovernorateAges 18–25 - NCT07027956Recruiting
Smoking and lung function study
This study measures how well your lungs work and how much oxygen is in your blood. It compares smokers and non-smokers to see if smoking affects breathing.
KırşehirAges 18–65 - NCT07118332RecruitingEarly Phase 1
Psilocybin for chronic pain in veterans who smoke
This trial tests if psilocybin can help veterans with chronic pain who also smoke cigarettes. You will take psilocybin in a controlled setting to see if it reduces pain and helps with smoking.
West Haven, ConnecticutAges 21–65 - NCT03199651Recruiting
Study for people with stage IV lung cancer
This study focuses on improving outcomes for people with stage IV non-small cell lung cancer by gathering health, treatment, and lifestyle information. It may help researchers understand what supports survival and care planning, especially for people who are current smokers or recent quitters.
Columbus, OhioAges 18 years+ - NCT07547202Recruiting
Gum Disease Treatment Effects on Saliva in Smokers and Non-Smokers
This study tests whether a non-surgical cleaning procedure for gum disease changes markers in your saliva differently depending on whether you smoke. Researchers want to understand how smoking affects how your mouth heals.
Baghdad, Baghdad GovernorateAges 18 years+ - NCT07367737Enrolling by invitation
Comparing histatin-1 levels in smokers and non-smokers with gum disease
This study looks at a protein called histatin-1 in your saliva to see how it changes with gum disease treatment. Researchers want to compare levels between smokers and non-smokers before and after deep cleaning (a non-surgical treatment for periodontitis). It may help understand how smoking affects gum healing.
Baghdad, Medical CityAges Any age - 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+ - NCT06671288Recruiting
Balloon exercises for smokers with mild COPD
This trial tests if blowing up balloons while activating your core muscles can help smokers with mild breathing problems. You would do simple exercises to improve your lung function and breathing.
Rawalpindi, Punjab ProvinceAges 25–59 - NCT06372899Recruiting
Switching to E-cigarettes or Nicotine Pouches for Smokers
This study tests whether switching to e-cigarettes or nicotine pouches can help smokers who have tried many times to quit. If you are a heavy smoker (at least 5 cigarettes a day) and have failed to quit before, this trial may offer a new way to reduce harm from smoking.
Philadelphia, PennsylvaniaAges 21 years+ - NCT06296849RecruitingPhase 2
Quit smoking together as a couple with financial incentives
This trial tests if offering money rewards can help couples who both smoke to quit together. You and your partner would both join the program and get support to stop smoking.
Athens, GeorgiaAges 18 years+ - NCT05188287Recruiting
Phone app support to help Black smokers quit
This study tests a culturally tailored smartphone app plus coaching to help African American adults quit smoking. You may qualify if you smoke daily, are ready to quit soon, and can use the quit supports they provide.
Oklahoma City, OklahomaAges 18 years+ - NCT06678243Recruiting
Smartphone app to help occasional smokers quit
This study tests a smartphone app (SiS4) designed to help people who smoke occasionally but not daily to quit. You will use the app to track your smoking and get support tailored to your schedule.
Boston, MassachusettsAges 18 years+ - NCT06575673Recruiting
Online skills training to help smokers quit and feel better
This trial tests an internet-based program that teaches skills to help you quit smoking and manage stress, anxiety, or low mood. You'll use your own device to get support and learn new ways to cope.
Tai Po, New TerritoriesAges 18–64 - NCT05703672RecruitingPhase 3
Switching smokers to e-cigarettes who do not want to quit
This study tests whether switching from regular cigarettes to e-cigarettes helps smokers who are not interested in quitting. You would also be offered varenicline and regular check-ins to compare outcomes over time.
Kansas City, MissouriAges 21 years+ - NCT05896033Recruiting
Study how menthol cigarette rules affect current menthol smokers
This study looks at how changes in menthol cigarette and e-cigarette rules may affect people who currently smoke menthol cigarettes. You may be asked to complete phone-based reports (like a diary) about your smoking patterns.
Charleston, South CarolinaAges 21 years+ - NCT05815199Recruiting
E-cigarettes to help smokers with serious mental illness cut down
This study tests whether e-cigarettes can help people who smoke a lot reduce cigarette use (without requiring them to quit completely). It is designed for adults with serious mental illness and focuses on harm reduction and follow-up over time.
New York, New YorkAges 21 years+ - NCT05660525Recruiting
Helping rural smokers quit with pharmacist support and nicotine replacement
This study tests a smoking-cessation program delivered through community pharmacies in rural Appalachia. It may help people quit smoking using nicotine replacement (patch or lozenges) plus support from pharmacists.
Charlottesville, VirginiaAges 18 years+ - NCT05555069Recruiting
Menthol-flavored vaping study for adult menthol cigarette smokers
This study looks at how menthol flavoring may affect whether adult menthol cigarette smokers switch to e-cigarettes. You may be asked to switch and use e-cigarettes over a set period, while researchers track your smoking behavior.
Kansas City, MissouriAges 21 years+ - NCT05486455Recruiting
Lung cancer screening CT for eligible former and current smokers
This study looks at how well a chest CT scan can detect lung cancer early in people with a significant smoking history. If you qualify, your CT results may help improve future screening for people like you.
MarseilleAges 50–80
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Common questions
- Are there clinical trials for smokers?
- Yes. Clin2 currently lists 59 recruiting smokers 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 smokers 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 smokers 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.