Clinical Research Directory

An Interactive Smartphone Application to Motivate Smokers to Quit

Prospective, randomized, single-blinded, blinded-endpoint trial to determine the impact of a smartphone application-based program to motivate smokers to increase readiness to quit, make quit attempts, and quit smoking.

Therapeutic Contact Intensity in a Psychological Smoking Cessation Intervention With an App

This randomized controlled trial intends to examine the efficacy of a smoking cessation intervention with an App according to the intensity of therapeutic contact. Participants will be assigned to one of three groups. The first group will receive eight sessions with trained psychologists alongside access to the App. The second group will receive four sessions with trained psychologists plus App access. The control group will only have access to the App. This study seeks to determine the impact of different levels of therapeutic contact on abstinence outcomes.

The Next Step in Smoking Prevention: the Reduction of Tobacco Retail Outlets, a Comprehensive Policy Evaluation

Few countries have legislation to reduce the number and types of tobacco retail outlets. The Netherlands plans to ban tobacco sales in supermarkets in 2024. The overall aim of this proposed research is to evaluate the implementation of new legislation to reduce the number and types of tobacco outlets in the Netherlands, up until and including the ban on sales of tobacco in supermarkets. In a comprehensive policy evaluation, the investigators plan to examine (1) the impact of the policy on the number and types of tobacco outlets, (2) the impact on attitudes and behaviors of smoking adults and non-smoking youth, and (3) the influence of the tobacco industry on the policy process and the retail environment. In addition, the investigators plan to focus on differential effects in disadvantaged neighborhoods, where both smoking rates and tobacco outlet density are typically highest. The investigators bring together a unique combination of economic, psychological, and journalistic research methods. The investigators examine the impact of the new legislation on the amount and type of tobacco outlets and on the number of smokers by using routinely collected monitoring data. The investigators examine the impact of the legislation on smoking susceptibility of non-smoking youth and on impulse tobacco purchases by smoking adults with yearly quantitative surveys (two surveys before the policy implementation and two after) and with qualitative interviews and discussion sessions. The investigators examine whether these impacts differ for disadvantaged versus non-disadvantaged neighborhoods. The investigators examine what strategies the tobacco industry uses to influence the new legislation, policy processes, and the tobacco retail environment by performing a journalistic investigation, using for example documents obtained by Freedom of Information Act requests, (possibly) leaked documents from insider meetings, and interviews with insiders. Our research will provide a comprehensive evaluation of the effects of the implementation of the proposed legislative measures. Based on our results, the investigators will formulate recommendations for the Dutch Cancer Society, the Dutch government, and for other countries who consider reducing the number of tobacco outlets; highlight potential areas for further development and improvement within the legislative framework and provide recommendations on how to counter the lobby from the tobacco industry.

THE EFFECT OF A TRANSTHEORETICAL MODEL-BASED CHATBOT SUPPORT INTERVENTION ON SMOKING BEHAVIOR IN UNIVERSITY STUDENTS

The purpose of this clinical trial is to examine the impact of a chatbot-supported intervention based on the Transtheoretical Model (TTM) on smoking behavior, self-efficacy, decisional balance, and the urge to smoke among university students. The main questions it aims to answer are: * Does the chatbot-based support intervention, grounded in the Transtheoretical Model (TTM), have an effect on smoking behavior? * Does the chatbot-based support intervention, grounded in the Transtheoretical Model (TTM), have an effect on self-efficacy levels? * Does the chatbot-based support intervention, grounded in the Transtheoretical Model (TTM), have an effect on decisional balance? * Does the chatbot-based support intervention, grounded in the Transtheoretical Model (TTM), have an effect on the urge to smoke? The researchers will compare the experimental group with a group that received no intervention to determine whether the chatbot is effective in influencing smoking behavior. Participants will: * Complete the preliminary assessment questionnaire. * If you are in the experimental group, access the Telegram chatbot via the provided link and exchange messages with the bot once a week for a total of 6 weeks (each session will take approximately 10 minutes). Additionally, read the informational messages sent twice a week and try to incorporate the suggestions into your daily life. * Complete the follow-up questionnaires that will be sent after 6 weeks and again after 3 months.

A Study to Assess Nicotine Uptake From a Menthol Electronic Nicotine Delivery System Product

This will be a randomized, open-label, 2-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 \[PK\]) of Menthol ENDS investigational product (IP) relative to each participant's usual brand (UB) menthol cigarette. The study will be conducted in a confinement setting in generally healthy adult menthol cigarette smokers and dual users of menthol cigarettes and ENDS products.

Prevalence and Associated Factors of High BMI and Periodontitis in Thai Adults Aged Under 60 Years

Overweight and obesity, as well as periodontitis, are common public health problems with increasing prevalence. Both conditions may be linked through shared mechanisms involving chronic low-grade systemic inflammation. Numerous studies have reported an association between elevated body mass index (BMI) and periodontitis, particularly among younger and working-age populations. However, data regarding Thai adults under the age of 60 remain limited. Therefore, this study aims to determine the prevalence of high BMI and periodontitis among Thai adults aged 18-59 years and to identify factors associated with these conditions. The findings may provide useful information for improving awareness and supporting the prevention of both periodontal and general health problems in this population.

Vape Use Among Younger & Older Smokers

The study aims to recruit 100 current cigarette smokers (50 young adults ages 21-34; 50 older adults ages 35-65) who have tried vaping or are currently vaping (dual users). The study will examine the trajectories in tobacco use (cigarettes and/or ENDS), including the nuanced differences in ENDS use (i.e., detailed device characteristics, user preferences, patterns of use), according to smoker age group.

Overcoming Nicotine Dependence to Enable Quitting

Tobacco use disorder is a chronic, relapsing health condition that necessitates a chronic care approach. However, traditional smoking cessation treatment programs allocate nearly all their resources only to those smokers who are willing to set a quit date. This is problematic because few smokers are ready to set a quit date at any given time, and a smoker's stated intention to quit can change rapidly. One novel potential treatment strategy is to foster practice quitting (PQ), defined as attempting to not smoke for a few hours or days, without pressure or expectation to permanently quit. Although a growing body of evidence supports the role of practice quitting in fostering permanent quit attempts and cessation, there is a significant knowledge gap regarding which treatment strategies should be used to engage smokers in practice quitting. The proposed study will test the role of PQ counseling vs. Motivational Interviewing (MI) counseling, and NRT sampling (four-week supply of nicotine lozenges and patches) vs. none.

Impact of Lifestyle on Health Maintenance: A Randomized Controlled Trial

This study aims to evaluate the impact of public health interventions on changes in healthy lifestyle habits over time and their subsequent effects on health outcomes. The investigators hypothesize that exposing at-risk populations to structured physical activity programs, education on healthy nutrition, promotion of the Mediterranean diet, and workshops focused on strengthening psychological resilience will lead to improvements in anthropometric, oxidative, metabolic, and psychological parameters. Anthropometric and laboratory measures will be collected at multiple time points throughout the study. The longitudinal follow-up will span 12 months. It is anticipated that sustained adherence to healthy lifestyle behaviors will result in positive lifestyle changes and enhanced health-related quality of life.

Nurse-led Smoking Cessation Program With Follow-up in Healthy Life Centres: a Randomized Clinical Trial

A better understanding of how to incorporate effective smoking cessation measures into clinical practice is requested. In this is prospective, multi-center, randomized, open, blinded end-point (PROBE) trial, we assigned daily smokers hospitalized with an acute cardiac event 1:1 to an in-hospital nurse-led smoking cessation intervention with direct referral to further follow-up in the municipal healthy life-centres (intensive intervention) or to written information about smoking cessation and the municipal program (low-threshold intervention) . The primary outcome will be the smoking cessation rates between the groups at 6 months follow-up. Key secondary outcomes include a cost-effectiveness analysis of the intensive intervention and cessation rates at 3- and 12-months follow-up, the proportion who used nicotine replacement therapy and the proportion who attended the healthy-life center program between the two groups. We also assess effects of recurrent cardiovascular events and mortality after 12 months, two and five years follow-up. Exploratory analyses include new knowledge about the patient and system factors of importance for participation to healthy life-centers and for changes in smoking behaviour.

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.

Nicotine Pouch Pharmacokinetics Abuse Liability

Nicotine pharmacokinetics and subjective effects of Investigational Nicotine Pouch Products in adult cigarette smokers: A controlled, randomized, cross-over study with a balanced incomplete block design.

A Clinical Trial of Adaptive Treatment for Early Smoking Cessation Relapse

This is a research study to find out if treatment decision making can be improved for smokers who find it difficult to quit with medications. Everyone who participates in this study will receive free product, either nicotine replacement therapies (patches and lozenges), varenicline, or a harm reduction product (e-cigarette) for a full 12 weeks. Most participants will receive some combination of these treatments, depending on individual response to each. All visits and study assessments will be entirely remote. All treatments will be provided free of charge for the first 12 weeks. After that, the study team will contact the participants 6 months after the first study phone call to complete another survey. The study lasts six months and will involve 8 surveys.

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.

Human Perception of Odors and Odor Blockers

The goal of this clinical trial is to determine whether blockers of perception of key odorants in cigarette smoke have any utility in smoking cessation. The main question it aims to answer is: • Can odor blockers be used to suppress perception of the intensity of cigarette smoke in ways that reduce the ability of the odor of cigarette smoke to increase the urge to smoke. Participants will be asked to smell up to 20 odor samples per session and report on odor pleasantness and desire to smoke.

Multi-Site Trial of Tirzepatide for Smoking Cessation

This multi-site clinical trial will generate data on the efficacy of tirzepatide for smoking cessation and associated outcomes (e.g., post-cessation weight gain) in treatment-seeking people who smoke (PWS) with overweight or obesity. A sample of 300 treatment-seeking people who smoke with body mass index of 25 kg/m2 or greater will be recruited from four geographic sites (University of Southern California, Yale University, University of Chicago, and University of Colorado Anschutz Medical Campus) to participate in a parallel-arm, dose-escalating, placebo-controlled trial. Participants will attend weekly clinic visits to receive subcutaneous tirzepatide or placebo over 16 weeks (Visit Weeks 1-16), followed by follow-up visits at Week 17 and Week 27. Medication will be prescribed according to the standard dose titration schedule for the first 16 weeks of treatment (initial dose: 2.5mg/week; final dose: 10mg/week). All participants will also receive nicotine patches.

Switch or Quit R01

This study evaluates whether non-cigarette tobacco products (e-cigarettes) can help smokers quit smoking as compared to traditional quit methods (nicotine replacement therapy or varenicline/Chantix). Participants in this study will be randomly assigned to one of two groups, then will have a choice between the offered products of that group. Participants in the e-cigarette group will have a choice of e-cigarette brand and flavor. Participants in the medication group will have choice between nicotine replacement therapy (patches and lozenges) or varenicline, also known as Chantix. Participation will last 6 months and will include weekly phone calls for the initial 7-weeks plus a 11-week phone call and a 6-month follow-up visit. Participants will also complete electronic daily diaries during the first 7-weeks.

Evaluation of a Novel mHealth Intervention for People Who Are Ambivalent About Quitting Smoking

The goal of this study is to compare the effectiveness of two smoking cessation programs to determine which better helps people change their smoking behavior, the control or the experimental intervention? Both interventions include access to a mHealth app and other publicly available stop-smoking resources. The two app versions each include best practice advice and guidance for quitting smoking, but one includes additional content designed for people who aren't ready to quit smoking. The investigators hypothesize that people who receive the experimental intervention will be more likely to request additional stop-smoking resources offered through the intervention and report smoking abstinence after 6 months. The investigators also hypothesize people assigned to the experimental app will have better app engagement and be more likely to report positive changes in their smoking behavior and use of other evidence-based stop smoking treatments that are publicly available.

Omega-3 Plus Low-Dose Aspirin in Smokers With Stage III Periodontitis

This randomized double-blind placebo-controlled clinical trial aims to evaluate the clinical and biochemical effects of omega-3 fatty acids combined with low-dose aspirin as an adjunct to scaling and root planing (SRP) in smoker patients with Stage III periodontitis. The study compares test and control groups regarding periodontal clinical parameters and gingival crevicular fluid interleukin-1 beta (IL-1β) levels Or other inflammatory markers that will be determined later at baseline, 3 months, and 6 months following treatment

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.

Isradipine Enhancement of Virtual Reality Cue Exposure for Smoking Cessation

The proposed study represents a crucial and important stage in translating basic research to strategies for treating nicotine dependence. The investigation addresses an important public health issue by testing an intervention - informed by basic research - that may lead to a more effective and efficient treatment for smokers. The expected findings should provide initial effect size data for the addition of isradipine to an integrated psychosocial/behavioral and pharmacological smoking cessation intervention for smokers, and thus provide the necessary data for a large-scale follow-up trial.

An Experimental Evaluation of Menthol-Flavored Tobacco Accessories

In a within-subjects design in-laboratory study, participants will sample non-menthol cigarettes mentholated with various accessories (e.g., crush balls, filter tips, aroma cards) in a controlled setting. They will compare these to their preferred menthol brand using subjective ratings (e.g., liking, strength, ease of use) and complete purchase tasks and ETM trials to assess product demand and likelihood of future use.

Translational Research Center in Lung Cancer Disparities (TRACER) Project 2

The purpose of this study is to examine racial differences in smoking behaviors and stress responses between African American and white male smokers.

Influence of Authorized Smokeless Tobacco Product Modified Risk Claims I: Consumer Product Demand

To explore consumer responses to the announcement and implementation of new modified risk claims for Copenhagen and General Snus (brands of smokeless tobacco (ST) products) using a series of complementary and innovative research activities and methods.