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71 clinical studies listed.

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Tobacco Use

Tundra lists 71 Tobacco Use clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT05707871

Cardiovascular Effects of Very Low Nicotine Content Cigarettes

The study is measuring Cardiovascular effects of very low nicotine content cigarettes on daily and non-daily smokers

Gender: All

Ages: 21 Years - Any

Updated: 2026-08-28

1 state

Tobacco Use
NOT YET RECRUITING

NCT07789496

Quit With Sense: Using Mindful Smoking and Wearable Device for Smoking Cessation

This pilot randomized controlled trial will test the feasibility of a smoking cessation intervention using mindful smoking practice and a smartphone-based sensor-band among adults who regularly smoke cigarettes. Participants will be randomized to either an intervention group or a control group. Participants in the intervention group will receive a one-on-one mindful smoking guidance session, instructions for using a smartphone-based sensor-band, a mindfulness practice video, and smoking cessation information. Participants in the control group will receive smoking cessation information. The intervention period will last 8 weeks, with assessments at baseline, 8 weeks, and 4 months after completion of the intervention. The study will evaluate feasibility, preliminary smoking cessation outcomes, and physiologic parameters including heart rate variation, skin temperature, resting heart rate, respiratory rate, and real-time heart rate during craving and mindful smoking practice.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-27

1 state

Smoking Cessation
Cigarette Smoking
Tobacco Use
+1
RECRUITING

NCT06693700

A Study Evaluating the Use of an Indoor Air Quality Monitor to Promote a Smoke-free Home

The purpose of this study is to evaluate how using an indoor air quality monitor can promote a smoke-free home for cancer patients who are enrolled in MSK's Tobacco Treatment Program.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-27

2 states

Smoking
Smoking Cessation
Smoking Reduction
+7
RECRUITING

NCT07168629

A Community Health Worker Intervention to Improve Lung Cancer Screening Uptake in Community Health Centers

Lung cancer screening (LCS) can reduce lung cancer-related mortality by 20%, but only 5-10% of eligible individuals have received an initial LCS. The goal of this study is to partner with community stakeholders to jointly develop and pilot test a multi-component community health worker-delivered intervention targeting key barriers to improve LCS and tobacco treatment utilization. The proposed activities will lay the groundwork for a subsequent R01 grant, conducting a fully powered randomized clinical trial to establish CHWs as an evidence-based practice that will facilitate access to screening and tobacco treatment, to reduce lung cancer mortality.

Gender: All

Ages: 50 Years - 80 Years

Updated: 2026-08-21

1 state

Lung Cancer
Tobacco Use
ENROLLING BY INVITATION

NCT05852860

A Patient-Oriented Research Mentoring Program in Tobacco Dependence and Implementation Science Research

The objective of this trial is to evaluate the effectiveness of "nudges" to clinicians, patients, or both in increasing referral to, and engagement with, tobacco use treatment services (TUTS) for HIV patients versus usual care. This will be a four-arm pragmatic cluster randomized clinical trial. The investigators hypothesize that each of the implementation strategy arms will significantly increase TUTS referral and engagement compared to usual care and that the combination of nudges to clinicians and to patients will be the most effective.

Gender: All

Updated: 2026-08-14

1 state

HIV
Smoking
Tobacco Use
+1
NOT YET RECRUITING

NCT07758998

The Effect of Motivational Interviewing on Smoking Behavior Among Nursing Students

Smoking is one of the leading preventable public health problems worldwide, particularly among young adults who are at increased risk of nicotine dependence. Nursing students represent an important target population because, as future health professionals, they are expected to play a significant role in tobacco control and smoking cessation counseling. The Transtheoretical Model (TTM) is one of the most widely used theoretical frameworks for promoting health behavior change. The aim of this study will be to determine the effect of Transtheoretical Model-based motivational interviewing on changing smoking behavior among nursing students. This study will be planned as a single-group, quasi-experimental pretest-posttest intervention. Nursing students who smoke cigarettes and voluntarily agree to participate will be included in the study. At baseline, participants will complete a Demographic Information Form, the Fagerström Test for Nicotine Dependence, the Stages of Change questionnaire, the Self-Efficacy/Temptation Scale, the Processes of Change Scale, and the Decisional Balance Scale. Participants will receive Transtheoretical Model-based educational sessions and motivational interviewing interventions focusing on the health effects of smoking, reasons for smoking, the benefits of smoking cessation, identification of social support resources, relapse prevention strategies, and successful smoking cessation experiences. The Stages of Change questionnaire will be administered before each motivational interviewing session, and all outcome measures will be reassessed during follow-up evaluations. The study is expected to provide evidence regarding the effectiveness of Transtheoretical Model-based motivational interviewing in reducing smoking behavior, decreasing nicotine dependence, promoting progression through the stages of change, improving self-efficacy, enhancing the use of behavioral change processes, and supporting smoking cessation among nursing students.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-11

1 state

Tobacco Use
Smoking Cessation
NOT YET RECRUITING

NCT07734727

Adaptation and Testing of a Novel Text-based Tobacco Cessation and Education Intervention in Kenyan Emergency Department Patients

In this study, investigators will adapt and implement Text2Quit in a Kenyan ED population will increase knowledge and cessation. Investigators will use a mixed-methods, hybrid implementation-effectiveness approach to assess these outcomes. Results will inform a randomized, controlled trial in a nationally representative sample of EDs in future. This study will be the first to target tobacco use in this population, the first to use mobile cessation, and will contribute to advancing implementation science on tobacco cessation globally. It will also provide a novel approach to implementation for mHealth interventions, with findings that can be generalized to other Non-Communicable Diseases and risk factors, such as alcohol use, hypertension and diabetes.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-06

Tobacco Use
Tobacco Use Cessation
NOT YET RECRUITING

NCT07746492

Just-in-Time Support for Smoking, Vaping, and Eating Urges During High-Stress Moments Among Gender and Sexual Minority Adults in Dhaka

Gender and sexual minority adults in Bangladesh experience high levels of stigma-related stress. Acute stress can trigger strong, affect-driven urges to smoke, vape, or engage in stress-attributed eating. These urges can rise and fall within minutes to hours, operating outside the reach of conventional clinic-based interventions delivered days or weeks later. This pilot micro-randomized trial (MRT) evaluates whether delivering a brief, culturally adapted support message via smartphone during moments of high self-reported stress reduces the intensity of the urge for the participant's pre-specified target behaviour, relative to no message. Over a 24-day period, 115 participants will be scheduled for up to 5 ecological momentary assessments (EMA) per day. Whenever a participant reports an acute stress level of 5 or higher (0 to 10 scale) and satisfies pre-specified privacy, safety, behavioural, and spacing criteria, the app randomizes with probability 0.5 to deliver either a brief support message or no message. By contributing multiple randomized decision points over time, each participant serves as their own micro-control. The primary outcome is the intensity of the urge for the participant's pre-specified target behaviour, measured 45 to 60 minutes after randomization. An exploratory urge assessment is also collected 10 minutes after randomization; comparing the two time points will help establish whether the support message's effect is immediate, delayed, or both, and will inform the choice of follow-up window for a future, fully powered trial. Prior to trial launch, all EMA items, message content, notification logic, and digital safety protocols will be developed and tested with community members, reviewed by a Community Advisory Board, and locked. As a pilot optimization trial, its objectives are to estimate the short-term causal effect of the prompt, to identify the contexts in which that effect is larger or smaller, and to establish whether momentary assessment and just-in-time intervention research can be delivered safely, privately, and acceptably in this high-stigma setting. The study does not evaluate long-term behavioural maintenance and does not claim to address the underlying structural stigma and discrimination that produce minority stress.

Gender: All

Ages: 18 Years - Any

Updated: 2026-08-05

Tobacco Use
Electronic Cigarette Use
Emotional Eating
+1
NOT YET RECRUITING

NCT07739797

A Study to Assess Nicotine Uptake From Electronic Nicotine Delivery System Products

This will be a randomized, open-label, 8-way crossover, single-site study designed to evaluate elements of abuse liability (AL), including subjective effects and physiological measures (pharmacodynamics \[PD\]), and plasma nicotine uptake (pharmacokinetics \[PK\]) during and following ad libitum use of electronic nicotine delivery system (ENDS) investigational products (IPs). The study will be conducted in a confinement setting among generally healthy adult smokers of combustible cigarettes and dual users of cigarettes and ENDS products.

Gender: All

Ages: 21 Years - 60 Years

Updated: 2026-07-31

Smoking Behaviors
Smoking ( Cigarette)
Tobacco Use
NOT YET RECRUITING

NCT06790342

Optimizing Treatment of Co-occurring Smoking and Unhealthy Alcohol Use Among PWH in Nairobi, Kenya

People with HIV (PWH) smoke tobacco cigarettes and drink alcohol at higher rates than the general population, both in the US and internationally, including low- and middle-income countries. Now that effective antiretroviral therapy is available throughout most of the world, PWH are surviving long enough to manifest the lethal consequences of both their smoking and drinking. In this project, the investigational team aims to advance the knowledge and understanding of treatment strategies (i.e. individual intensive counseling ± pharmacotherapy with cytisine) that target both tobacco and alcohol use among PWH in Kenya, a resource constrained environment, and to generate outcome data that may benefit co-users of tobacco and alcohol throughout the world.

Gender: All

Ages: 18 Years - 80 Years

Updated: 2026-07-30

HIV
Tobacco Use
Alcohol Use Disorder
RECRUITING

NCT07712887

Puff Topography and Sensory Effects Across IQOS Device Generations

The goal of this clinical trial is to learn how people use two generations of IQOS heated tobacco devices and how each device affects their smoking behavior and sensory experience. The main questions it aims to answer are: * Do participants puff differently when using the newer IQOS Iluma i compared to the older IQOS 2.4? * Does the flavor of the tobacco stick (preferred flavor vs. standard tobacco flavor) affect puffing behavior or sensory experience? * What are the differences in throat hit, mouthfeel, and satisfaction between the two devices? Participants will: * Attend 2 laboratory visits at the American University of Beirut * Use both the IQOS Iluma i and IQOS 2.4 devices during each visit * Have their puffing behavior recorded automatically during device use * Provide a breath sample before and after each use session * Complete short questionnaires about how each device felt and their urge to smoke

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-07-30

1 state

Nicotine Dependence
Tobacco Use
NOT YET RECRUITING

NCT07735286

Automating Tobacco Cessation in Primary Care

This study focuses on improving how primary care teams identify patients who smoke and offer access to nicotine replacement therapy, or NRT. NRT includes medications such as nicotine patches, gum, or lozenges that can reduce cravings and support people who are interested in cutting back or quitting smoking. Although NRT is an evidence-based treatment option, it is not always discussed or prescribed during routine primary care visits. To better understand how NRT can be offered in primary care, the project will test a workflow at Penn Family Care that identifies patients who currently smoke and provides information about available tobacco treatment options. Edward Cooper Internal Medicine will serve as a comparison site. Patients who smoke and/or are prescribed NRT will also receive a 30-day follow-up survey to learn whether they received, picked up, or used NRT; whether it was useful; and what barriers they experienced.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-29

Tobacco Use
Tobacco Use Cessation
NOT YET RECRUITING

NCT07230249

Telegram Messenger Support for Smoking Cessation After Heart Attack

This randomized controlled trial will evaluate whether a 6-month behavioral intervention delivered via Telegram messenger increases smoking cessation rates in patients after myocardial infarction (MI). Adult smokers hospitalized with acute MI who regularly use Telegram will be randomly assigned to either: * INTERVENTION GROUP: Standard care plus a 6-month Telegram chatbot program providing personalized motivational messages, cognitive-behavioral techniques for craving management, and relapse prevention support. * CONTROL GROUP: Standard care (routine physician advice to quit smoking) plus basic surveys via Telegram without therapeutic content. The primary outcome is 30-day point prevalence abstinence at 6 months, verified by blinded telephone interview with participant and corroborating report from a close relative. Secondary outcomes include changes in cigarette consumption, nicotine dependence, motivation, and intervention engagement metrics. This study addresses the critical gap in smoking cessation support after hospital discharge and could provide evidence for a scalable digital health solution in cardiac secondary prevention.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-28

1 state

Myocardial Infarction (MI)
Tobacco Use
Smoking Cessation
RECRUITING

NCT06033599

Motivational Interviewing and Mindfulness-Oriented Recovery Enhancement

The purpose of this study is to 1) examine barriers and facilitators to implementation of MI and MORE for polysubstance use and evaluate strategies for optimizing training, fidelity, and clinic uptake, and 2) evaluate patient outcomes related to the effectiveness of MORE decreasing opioid, tobacco, and other drug use.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-17

2 states

Polysubstance Abuse
Opioid Use
Tobacco Use
NOT YET RECRUITING

NCT07515586

A Mindfulness-based Intervention for Sexual Assault Survivors

The goal is this pilot randomized trial is to learn if intervention 1 is feasible and acceptable. A secondary aim is to learn if intervention 1 reduces alcohol misuse and tobacco use in sexual assault survivors. The main questions it aims to answer are: * Is intervention 1 feasible to implement? * Is intervention 1 an acceptable intervention among the primary population, sexual assault survivors? * Does intervention 1 reduce alcohol misuse and tobacco use? Researchers will compare intervention 1 to an attention-placebo control group (e.g., online resources on healthy eating and nutrition). Participants will: * take online surveys at baseline, 1 month follow-up, and 3-month follow-up * answer text-message questions at baseline and post-test * view and engage in an educational program

Gender: All

Ages: 18 Years - 24 Years

Updated: 2026-07-16

1 state

Alcohol Misuse
Tobacco Use
Mindfulness
+1
ACTIVE NOT RECRUITING

NCT06295757

Effects of Relighting on Smoke Toxicant Deliveries and Subjective Smoking Measures

Characterize effects of relighting on smoke toxicant deliveries and subjective smoking measures. This will be a within-subject comparison in a single experimental group of 30 smokers who report engaging in relighting behaviors. We will assess smoking intensity for relit and non-relit (i.e., smoked continuously without relighting) cigarettes in the natural environment and will conduct in-clinic measurements of smoking topography and subjective responses for relit and non-relit cigarettes. Information on relighting patterns and smoking topography collected from each participant will be used to compare machine-measured smoke yields of key harmful constituents when their usual cigarettes are smoked with and without relighting. Hypothesis: Relit cigarettes will produce higher levels of toxicants than non-relit cigarettes.

Gender: All

Ages: 21 Years - Any

Updated: 2026-07-13

1 state

Tobacco Use
Cigarette Smoking
Nicotine Dependence
ACTIVE NOT RECRUITING

NCT07020273

CONNECT Cancer Survivors With Tobacco Treatment

The purpose of this study is to evaluate the comparative effectiveness of two different informatics-enabled implementation strategies on increasing tobacco treatment and improving smoking cessation rates for cancer control and prevention. This will be done via a two-arm pragmatic cluster randomized trial (CRT) to test the effectiveness of nudges to change (ELEVATE-S) vs. quit-focused usual care (ELEVATE) in increasing tobacco treatment (use of medication, brief advice, or referral to external counseling) and smoking cessation.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-10

1 state

Tobacco Use
Tobacco Use Cessation
Smoking Cessation
+2
COMPLETED

NCT06534905

E-cigarette Switching Older Adults

The goal of this clinical trial is to learn if adults 50 years and older who currently smoke tobacco and are in treatment for opioid use disorder will switch to using e-cigarettes instead of continued smoking. Participants will not have a plan to quit smoking and will not be actively trying to quit smoking at the start of the trial. The main questions the study aims to answer are: * Are e-cigarettes a feasible and acceptable harm-reduction tool among older adults who currently smoke tobacco and don\'t have a plan to quit? * Will switching to e-cigarettes and reducing tobacco use be more likely among patients given access to e-cigarettes compared to individuals who are exposed to a standard brief intervention for smoking cessation (control)? * Does the accuracy of nicotine/tobacco knowledge change after participants are exposed to education on the harms of nicotine relative to no education? Participants will complete a baseline session (BL) and follow-up visits at weeks 2, 6, and 8, each lasting 30-90 minutes, for a total of approximately 3-4 hours of participation in the study. Each session will include computerized assessments of tobacco and other substance use, health status, mood, and functioning. Patients will be randomly assigned at baseline (if meeting eligibility criteria) to receive an e-cigarette product (name of product: NJOY Ace) or brief advice to quit smoking (in alignment with recommendations by the American Society of Addiction Medicine).

Gender: All

Ages: 50 Years - Any

Updated: 2026-07-10

1 state

Tobacco Use
Opioid Use Disorder
Tobacco-Related Disorders
ACTIVE NOT RECRUITING

NCT06689774

Salvation Army Tobacco Quit Line Referral Implementation Trial

The goal of this clinical trial is to understand how the Salvation Army staff can help people who use tobacco learn about and connect with no-cost treatments to help cut down or quit smoking. Researchers will gather information about the thoughts and experiences of people who smoke tobacco and receive services at the Salvation Army, as well as the experiences of the staff offering support to help treat tobacco use.

Gender: All

Ages: 18 Years - Any

Updated: 2026-07-08

1 state

Tobacco Use
Smoking
Smoking Cessation
RECRUITING

NCT07489443

Feasibility and Acceptability Trial to Reduce Tobacco and Cannabis Use During Pregnancy and Postpartum

Using both tobacco and cannabis during pregnancy is more common in minoritized groups and can make quitting smoking in pregnancy and remaining smoke free postpartum difficult. Investigators will test an intervention to address prenatal depressive symptoms to encourage people to quit tobacco and cannabis during pregnancy and stay quit postpartum.

Gender: FEMALE

Ages: 18 Years - Any

Updated: 2026-07-06

1 state

Perinatal
Cannabis Use
Tobacco Use
+1
NOT YET RECRUITING

NCT07685795

Abuse Liability of Four Modern Oral Nicotine Products

This is a single-site, open-label, randomized, 6-way crossover study designed to evaluate elements of abuse liability (AL) including subjective effects, physiological measures (pharmacodynamics \[PD\]), and plasma nicotine uptake (pharmacokinetics \[PK\]) during controlled monitored use and following ad libitum use of the study investigational products (IPs) by generally healthy smokers who are also users of smokeless tobacco.

Gender: All

Ages: 21 Years - 60 Years

Updated: 2026-07-06

Smoking
Smoking Behaviors
Tobacco Use
+1
ENROLLING BY INVITATION

NCT04297592

Antibiotic Prophylaxis in High-Risk Arthroplasty Patients

To determine the effectiveness of a 7-day course of an oral, prophylactic antibiotic on the incidence of periprosthetic joint infection and wound complications following primary total hip and knee arthroplasty in a high-risk patient population.

Gender: All

Ages: 18 Years - 99 Years

Updated: 2026-07-06

2 states

Infections Joint Prosthetic
Overweight or Obesity
MSSA Colonization
+6
NOT YET RECRUITING

NCT07612696

Impact of Electronic Cigarette Temperature and Solvent on Biomarkers

This project seeks to determine how e-cigarette (EC) physical design features, including those that allow the user to manipulate the quality and quantity of aerosols, affect exposure and toxicity from oxidants and other aerosol constituents.

Gender: All

Ages: 21 Years - Any

Updated: 2026-06-16

1 state

Oxidative Stress
Tobacco Use
Electronic Cigarettes
RECRUITING

NCT06310187

Little Cigar Oxidants

Determine the effects of little cigars on human exposure to tobacco smoke oxidants. In a balanced randomized cross-over study design in cigarette smokers, subjects will be assigned to 3 exposure groups. These include a high oxidant little cigar exposure condition, a low oxidant little cigar exposure condition, and their usual cigarette. Biological samples will be collected before and after product usage.

Gender: All

Ages: 21 Years - 65 Years

Updated: 2026-06-16

1 state

Tobacco Use
Oxidative Stress