View clinical trials related to Smoking.
Filter by:The primary objective of this study is to to verify the feasibility of obtaining and comparing two epithelia in two populations based on the following experiments: - Differentiation of an Induced Pluripotent Stem cell (iPS) clone derived from cutaneous biopsy in a population of heavy smokers (plus patients with chronic obstructive pulmonary disease) in order to obtain differentiated bronchial epithelia in vitro. - For each of these same patients, generation of bronchial epithelium in vitro from bronchial biopsy using human bronchial epithelial cells (HBECs) in air-liquid interface (ALI) cultures.
This study will compare nicotine delivery and product satisfaction in healthy subjects either using several different types of electronic cigarettes or smoking a conventional cigarette.
Before February 2018 the baseline survey is conducted in about 60 class in Brazilian secondary schools. These classes are randomized to control and intervention group in a 1/1 manner. A few weeks thereafter medical students from the local medical school visit the schools and perform a smoking prevention intervention called "photoaging mirroring intervention" which takes about 45 minutes. One month and six months after the intervention the intervention group receives another anonymous questionnaire monitoring smoking status. The primary endpoint is the difference in the chance of smoking prevalence between the two groups.
This study is a randomized controlled trial (RCT) and there will be two groups: an intervention group and a control group. Nurse practitioners (NPs) across Newfoundland and Labrador (NL) who agree to participate will be randomly assigned to one of the two groups. The NPs in the intervention group will be asked to screen about 30 individuals aged 40-74 years without established cardiovascular disease (CVD) that currently come to their clinics. The NPs will be asked to screen these patients for CVD using a set of specific data collection tools that will be in electronic format. The control group will carry on with usual practice. Their charts will be reviewed by the researchers at a later date. At the end of the study, the screening program, with tools and strategies for CVD screening, will be given to NPs in the control group.
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.
Hookah (water pipe) smoking is a new global epidemic. The World Health Organization wants to prohibit all claims that hookah is less harmful than cigarettes and wants hookah products to bear the same warning labels as cigarettes. But there is little scientific evidence to substantiate this proposal. Cigarettes, cigars, medicinal nicotine, and e-cigarettes all acutely impair brachial artery endothelial function (flow-mediated dilation, FMD). Also, cigarettes cause both acute and chronic impairment in coronary endothelial function, but the comparative effects of hookah are unknown. Hookah tobacco is heated with burning charcoal. So, the smoke contains "tar" and nicotine plus charcoal combustion products. These include carbon monoxide (CO) and proatherogenic oxidants (especially carbon-rich nanoparticles) that the study team expected to impair endothelial function.
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.