Clinical trials
Nicotine Addiction clinical trials
Below are recruiting nicotine addiction clinical trials, each written for real people, not researchers. We’re tracking 25 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07165808Recruiting
Nicotine pouch abuse liability study
This study looks at how different nicotine pouch products affect people's desire to use them. It may help if you currently use nicotine pouches and are not planning to quit.
Atlanta, GeorgiaAges 21–35 - NCT06254001RecruitingPhase 4
Combined tobacco treatment for hospitalized smokers
This trial tests a combination of treatments to help hospitalized smokers quit. If you are a smoker currently in the hospital, you may be able to join and get support to stop smoking.
Mexico CityAges 18 years+ - NCT06096714RecruitingEarly Phase 1
Testing nicotine's addictive threshold in smokers
This study tests how nicotine affects the brain's reward system in people who smoke. It aims to find the level of nicotine that becomes addictive, helping guide future treatments.
West Haven, ConnecticutAges 21–59 - NCT06863168Recruiting
Cigarillo Education Messages for Black Young Adults
This study tests different messages to see what works best to help Black young adults avoid or cut back on cigarillo smoking. If you are between 18 and 30, identify as non-Hispanic Black, and are either open to trying cigarillos or only use them once in a while, this may be for you.
Philadelphia, PennsylvaniaAges 18–30 - NCT06630728RecruitingPhase 4
How Addictive Are Very Low Nicotine Little Cigars?
This study is testing whether little cigars with very low nicotine are less addictive than regular ones. Researchers want to see how smoking these affects your mood, cravings, and smoking behavior.
Columbus, OhioAges 21–75 - NCT06471387Recruiting
Study of genes linked to nicotine addiction
This study looks at your genes to understand why some people get addicted to nicotine. Your participation could help develop new treatments for quitting smoking.
NicosiaAges 18–60 - NCT06544057Recruiting
E-counseling to help quit smoking or vaping
This trial tests a real-time e-counseling program to help adults quit smoking or vaping. It is designed for those who are motivated to stop using nicotine and set a quit date.
Leicester, MidlandsAges 18–65 - NCT07059377RecruitingPhase 3
Semaglutide to help smokers with diabetes quit
This study tests if the diabetes drug semaglutide can help people with type 2 diabetes stop smoking more easily. Participants will get either semaglutide or a placebo to see if it improves quit rates.
Ottawa, OntarioAges 18 years+ - NCT07585006RecruitingPhase 1
How nicotine affects the body: comparing e-cigarette liquids
This study compares different nicotine products to understand how they affect your body. Researchers will measure your heart rate, breathing, and blood samples during three short lab visits. The results may help scientists better understand nicotine's effects.
Columbus, OhioAges 21 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 - NCT07322432RecruitingPhase 2
The CONQUER trial: quitting vaping with e-cigarette reduction
This study tests whether gradually reducing nicotine in e-cigarettes helps people who vape quit completely. It is for adults who are ready to stop and want a structured program.
New York, New YorkAges 21 years+ - NCT06619964Enrolling by invitation
Study on nicotine levels in e-liquids
This trial tests how different nicotine levels in e-liquids affect people who use pod or pen-style vapes daily. It aims to help regulators make better rules about nicotine content.
Rochester, New YorkAges 21 years+ - NCT05276050Recruiting
Brain-circuit treatment to help people with schizophrenia quit smoking
This study tests a circuitry-guided approach to help people with schizophrenia quit smoking. It may help reduce cravings and improve quitting, while also watching for safety issues.
Houston, TexasAges 22–65 - NCT05505188Recruiting
Predicting long-term pain after head and neck radiotherapy
This study looks for ways to predict and improve pain you may have months after radiotherapy for first head and neck cancer. It may help doctors better anticipate pain and support patients during recovery.
CaenAges 18 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+ - NCT06803706Recruiting
Gut bacteria changes during smoking quit attempt
This study looks at how quitting smoking changes your body's gut bacteria and metabolism. It is for people with a substance use disorder who want to stop smoking.
FehringAges 18 years+ - NCT07292883RecruitingPhase 2
Accelerated TMS for smoking cessation
This trial tests whether a rapid form of brain stimulation (TMS) can help people stop smoking. It is designed for adults who are ready to quit within the next month.
Penetanguishene, OntarioAges 18 years+ - NCT07298902Recruiting
Non-invasive brain stimulation to help quit smoking
This study tests a new non-invasive brain stimulation technique to help long-term smokers quit. You'll receive a safe magnetic pulse to brain areas linked to cravings, and researchers track your progress.
Houston, TexasAges 20–60 - NCT07346092Recruiting
Health beliefs and social behaviors about nicotine pouches
This study looks at how graduate students at Ohio State University perceive and use oral nicotine pouches. The goal is to create better ways to communicate the addictive risks of these products.
Columbus, OhioAges 21 years+ - NCT07210268Recruiting
Brain stimulation for nicotine addiction treatment
This trial tests a new method called temporal interference to stimulate the brain and help people who vape nicotine reduce their addiction. It aims to see if this non-invasive approach can make it easier to quit.
Bloomington, IndianaAges 21–50 - NCT06077240Recruiting
E-cigarettes vs pouches for quitting smoking
This study compares the effects of e-cigarettes and nicotine pouches on smoking habits and addiction. The goal is to see which method helps people smoke less and reduces their dependence on cigarettes.
New Haven, ConnecticutAges 21 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 - 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 - NCT07145866RecruitingPhase 4
Varenicline and TMS for quitting nicotine use
This study tests whether combining the medication varenicline (Chantix) with a special brain stimulation treatment (TMS) can help people quit vaping or smoking nicotine. If you're motivated to quit and use nicotine daily, you may be able to join.
Boston, MassachusettsAges 18–65
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Common questions
- Are there clinical trials for nicotine addiction?
- Yes. Clin2 currently lists 25 recruiting nicotine addiction 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 nicotine addiction 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 nicotine addiction 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.