View clinical trials related to Cigarette Smoking.
Filter by:This is a randomized, open-label, forced-switch, parallel, proof-of-concept study to assess exposure to biomarkers of tobacco exposure following short-term ad lib use of three blu e-cigarette products. The primary objectives of this study are to: 1. Compare changes in selected urine and blood biomarkers of tobacco exposure within cohorts following a 5-day forced-switch from usual brand conventional combustible cigarettes to exclusive use of blu e-cigarettes, dual use of blu e cigarettes and the subject's usual brand combustible cigarette, or smoking cessation. 2. Compare changes in selected urine and blood biomarkers of tobacco exposure among cohorts following a 5-day forced-switch from usual brand conventional combustible cigarettes to exclusive use of a blu e cigarette, dual use of a blu e-cigarette and the subject's usual brand combustible cigarette, or smoking cessation. The secondary objectives of this study are to: 1. Compare changes in selected physiological endpoints affected by tobacco exposure within cohorts during a 5-day forced-switch from usual brand conventional combustible cigarettes to exclusive use of blu e cigarettes, dual use of blu e cigarettes and the subject's usual brand combustible cigarette, or smoking cessation. 2. Compare changes in selected physiological endpoints affected by tobacco exposure among cohorts following a forced-switch to exclusive use of a blu e cigarette, dual use of a blu e-cigarette and the subject's usual brand combustible cigarette, or smoking cessation. 3. Determine daily nicotine consumption from blu e-cigarettes following exclusive use of blu e cigarettes or dual use of blu e-cigarettes and the subject's usual brand combustible cigarette over a 5-day period. 4. Assess the effectiveness of exclusive use of blu e-cigarettes or dual use of blu e-cigarettes and the subject's usual brand combustible cigarette to reduce the urge to smoke. 5. Assess subject opinions of various characteristics of blu e-cigarettes. 6. Assess the safety and tolerability of short-term use of blu e-cigarettes.
Project 1, Study 2 will evaluate the impact of very low nicotine content cigarettes with and without transdermal nicotine on cigarettes smoked per day, nicotine exposure, discomfort/dysfunction, other health-related behaviors, nicotine/tobacco dependence, biomarkers of tobacco exposure, intention to quit, compensatory smoking, other tobacco use, cigarette characteristics, cue reactivity, cardiovascular function, perceived risk and cue reactivity. The investigators will also consider differences between conditions in compliance with product use and the ability to abstain from smoking when provided a financial incentive for abstinence.
The overall goal of the study is to evaluate how motivation and readiness for change are influenced in the context of a smoking cessation attempt. A total of 60 adult (i.e. age 18-55) smokers (N=40 with ADHD; N=20 without ADHD) who are interested in quitting will be enrolled into a 3-arm trial allocated as follows. Twenty of the ADHD smokers and the 20 non-ADHD smokers will be assigned to a traditional 8-week contingency management intervention in which monetary payments will be made contingent upon biologically verified evidence of smoking abstinence. The 20 additional ADHD smokers will be assigned to a treatment-as-usual condition (nicotine replacement; supportive counseling). During the treatment phase, subjects will be required to answer questions 4x/week in their daily lives via an EMA (Ecological Momentary Assessment). Specific Aim 1: To assess motivation to quit smoking and readiness for change prior to a quit attempt in treatment seeking ADHD and non-ADHD smokers. Hypothesis 1a: The investigators hypothesize that prior to a quit attempt, smokers with ADHD will exhibit significantly lower levels of intrinsic motivation to quit, and equal or higher levels of extrinsic motivation to quit compared to smokers without ADHD. Hypothesis 1b: The investigators hypothesize that smokers with ADHD will exhibit relatively less readiness for change than smokers without ADHD. Specific Aim 2: To assess how baseline levels of motivation to quit and readiness for change are influenced during a quit attempt as a function of both ADHD status and treatment modality. Hypothesis 2a. The investigators hypothesize that the CM intervention will result in relatively greater change in extrinsic motivation to quit versus intrinsic motivation to quit, and that this effect will be more pronounced among ADHD smokers. Hypothesis 2b: The investigators hypothesize that overall motivation to quit (intrinsic and extrinsic) and readiness for change will be significantly influenced by the CM intervention versus treatment as usual among ADHD smokers. Exploratory Aim 1: To assess the relative efficacy of a CM intervention versus treatment as usual in smokers with ADHD. The investigators hypothesize that CM will be more effective for promoting short-term (4-8 weeks) smoking abstinence, as well as for promoting longer-term (3-6 months) smoking cessation. Exploratory Aim 2: To assess the associations among smoking withdrawal/craving, affect, ADHD symptoms, and motivation to quit/readiness for change. The investigators hypothesize that higher levels of motivation and readiness for change will be associated with lower levels of self-reported withdrawal, craving, and negative affect.
This study will assess the extent of postpartum smoking relapse among Romanian women, the associated risk factors, and will develop, implement, and pilot-test a randomized trial smoking relapse intervention incorporating innovative research concepts in a social and cultural acceptable manner. The primary hypothesis is that the intervention will increase mothers' smoking abstinence rates.
The study's primary aim is to test the hypothesis that an intervention that integrates low to moderate physical activity (walking) with evidence-based smoking cessation counseling (LMPA) will result is greater reductions in quit-day reactivity to smoking cues (a behavioral predictor of smoking relapse) as compared to standard care smoking cessation counseling (control group) in a sample of low-income sedentary male and female smokers. The study will also test the hypothesis that the participants randomized to the LMPA intervention will have greater quit rates at one-week and one-month post quit day follow ups.
The recent Surgeon General's Report calls for effective and readily available treatment approaches to help adolescent smokers interested in quitting. Schools are an ideal venue for connecting adolescent smokers with smoking cessation assistance. This study will adapt the Craving to Quit (C2Q) smartphone app, which integrates mindfulness training into a smoking cessation program, for teen smokers (C2Q-Teen). We will test how well this novel app helps teens stop smoking compared to another teen smoking cessation app that does not include mindfulness training, and to written cessation information alone. If effective, the C2Q-Teen would be relatively easy to disseminate widely and have tremendous public health significance
Investigators will examine whether adding financial incentives to current best practices for smoking cessation during pregnancy (i.e., referral to pregnancy-specific counseling using a telephone quit line) increases cessation rates and improves infant health. While more expensive upfront compared to best practices alone, the investigators hypothesize that this treatment approach will be economically justified by the later cost savings associated with more women quitting, having healthier babies, and needing less healthcare. It should also help to reduce the greater risk for health problems often seen among those who less well off economically.
The purpose of this study is to examine the impact of providing light smokers with feedback about their health, including exposure to tobacco-related chemicals.
The long-term goal of this research is to reduce tobacco-related disparities in maternal and infant health outcomes by improving smoking cessation and relapse prevention interventions for minority pregnant and postpartum women, who have been significantly underrepresented in smoking cessation research. This study will examine the feasibility and efficacy of a prize-based contingency management approach for increasing smoking cessation and preventing relapse among socioeconomically disadvantaged minority pregnant smokers. First, the intervention will be pretested with 10 pregnant low-income minority smokers and then refined based on acceptability survey and focus group data. Next, a pilot study will be conducted. 60 highly disadvantaged minority women, recruited from the outpatient obstetric clinics at a large teaching hospital, who report daily smoking and who meet other eligibility criteria will be enrolled and randomized to one of two study conditions: 1) Standard Psychoeducational Intervention (6-week, individually-administered, pregnancy-specific Quit Smoking Now curriculum, as currently implemented in the clinic; QSN Only); 2) Standard Psychoeducational Intervention plus Contingency Management (provision of incentives contingent on biochemically-verified abstinence; QSN-CM). Abstinence monitoring via expired carbon monoxide and salivary cotinine levels will occur in both groups beginning on the first quit day and continuing through 3-months postpartum. Only participants in the QSN-CM group will be reinforced for biochemically-verified abstinence with chances to win prizes ranging in value from approximately $1 to $100 ('fishbowl' or 'prize bowl' method). Study outcomes will be assessed through follow-up research exams (delivery and 6-months postpartum) and hospital chart reviews. The primary hypothesis is that that women randomized to the QSN-CM condition will have higher rates of abstinence during pregnancy and postpartum compared to women receiving standard of care alone. Results should advance scientific knowledge regarding effective methods for promoting and maintaining smoking abstinence among pregnant disadvantaged women and provide preliminary feasibility and efficacy data needed to support a larger randomized controlled trial.
The purpose of this study is to examine the effect of varenicline and prazosin on smoking, drinking, and sleep among cigarette smokers who report heavy alcohol use. Varenicline is an FDA approved smoking cessation medication. Some smokers report sleep problems when taking varenicline. This study will test whether using prazosin, which is an FDA-approved blood pressure medication, in combination with varenicline reduces sleep problems that can be associated with using varenicline for smoking cessation. In addition, the study will examine the combined effects of these medications on smoking and drinking. Hypothesis: Varenicline plus prazosin will result in lower rates of vivid dreams and insomnia symptoms/sleep discontinuity than varenicline alone prior to the 3-day practice quit attempt. Hypothesis: Varenicline plus prazosin will result in lower rates of vivid dreams and insomnia symptoms/sleep discontinuity than varenicline alone during the 3-day practice quit attempt.