View clinical trials related to Smoking.
Filter by:The purpose of this clinical study is to evaluate changes in biomarkers of exposure (BOE) to tobacco smoke constituents after smokers switch from combustible cigarettes to use of one of the three electronic cigarettes or abstinence.
This trial will test the efficacy of a 3-month intervention on Facebook targeting tobacco use and heavy episodic drinking against a 3-month Facebook intervention targeting tobacco use. Both groups will be offered a nicotine patch starter kit. The primary outcome is verified 7-day point prevalence abstinence from smoking at 3, 6, and 12 months.
Peripheral artery disease (PAD) affects 8-18 million in the US and is an economic burden, currently estimated to be greater than cancer and heart disease. Older age (> 65 years), smoking, diabetes and kidney diseases are some risk factors associated with PAD and are known to have increased morbidity and mortality.Early detection is critical for mitigating PAD progression. Ankle-brachial index (ABI) testing is recommended by the US Preventative Services Task Force as an affordable and effective screening tool for evaluating PAD risk. QuantaFlo™ (Semler Scientific, Inc.) is a novel, noninvasive, 510K FDA approved digital device that is used as a screening tool to measure ABI of patients at risk of PAD. This single center prospective clinical trial will evaluate the sensitivity and specificity of digital ABI in detecting PAD using color Doppler ultrasound and 'gold standard' angiography as reference. Specifically in patient undergoing dialysis and who cannot undergo ABI using pressure cuffs dialysis grafts/ fistulae in the arms, we will evaluate the value of digital ABI in detecting PAD.
The objective of this study is to conduct a randomized controlled trial to determine whether the use of the COach2Quit application (app) reduces smoking more than brief advice for smoking cessation. The investigators hypothesize that real time biomarker feedback and messaging support from the COach2Quit app will lead to greater smoking cessation rates than brief anti-smoking advice alone. If effective, the COach2Quit app could be an easily accessible and cost-effective tool to help smokers quit. The findings from this trial could have implications for the delivery of future outpatient smoking cessation programs.
This study will examine elements of abuse liability (AL) related to potential product adoption of three electronic tobacco vapor products by current smokers relative to high and low AL comparator products (usual brand cigarette and nicotine gum, respectively). Changes in subjective measures, speed and amount of nicotine uptake, and maximum changes in physiological effects during and after product use that follows a 12-hour (minimum) tobacco and nicotine abstinence period, will be determined. The electronic tobacco vapor products will not be compared to each other.
The goal is this study is to evaluate how the skin surface lipid composition is correlated with overall sebum production, barrier function, and inflammatory disease status. We hypothesize that there will be differences in the skin surface composition among subjects of various groups: 1. Young vs older healthy population 2. Atopic dermatitis vs Acne vs Healthy controls 3. Active smokers vs non-smoker controls
To study feasibility and implementation of a education videogame and the effects on adolescents knowledge and beliefs around tobacco products.
To determine the rate and amount of nicotine uptake with 10-minute ad libitum use of four different marketed electronic cigarettes. Furthermore, to measure overall product liking by subjects to assess potential willingness to seek out the Electronic Cigarette (EC) again in the future.
This short-term study aims to prove the potential cardio-protective physiological effect of inhaled aclidinium bromide/formoterol fumarate on inspiratory pleural pressures. Smoking is associated with gas-trapping (hyperinflation), even in the absence of chronic obstructive pulmonary disease. Breathing in the presence of gas-trapping requires large negative inspiratory pleural pressures, which are transmitted to the surface of the heart and increase cardiac wall stress. Inhaled aclidinium bromide and formoterol fumarate has been shown to reduce gas-trapping, but the impact on inspiratory pleural pressures and biomarkers of cardiac stress in smokers is unknown.
This study will evaluate exposure to "tar" and nicotine from two menthol cigarette products and provide a basis for comparing mouth-level exposure when smokers smoke the two cigarette products. Mouth-level exposure is the measurement of substance trapped in the cigarette butt after smoking the cigarette. Other purposes of this study are to: - Compare the plasma cotinine, a byproduct of your body's processing of nicotine, levels found in users after smoking each of two different cigarettes. - Find out the daily mouth-level exposure to cigarette "tar" and nicotine from smoking each of two different cigarettes in adult smokers. - Determine if certain measures of nicotine dependence change based on the type of cigarette smoked - To compare product liking and intent to use it again.