View clinical trials related to Smoking.
Filter by:The purpose of this study is to learn how smoking affects the immune systems in people with HIV infection. The investigators would like to know if HIV infected smokers who quit smoking have different responses in their tissues from people who keep smoking.
The goal of this study is to better understand why some Alpha-1 genotype MZ (PiMZ) individuals develop chronic obstructive pulmonary disease (COPD) while others do not. This study will examine portions of the Alpha-1 gene that are not routinely tested to determine whether other changes in this gene correlate with development and progression of COPD. Participation involves responding to questionnaires about lung health and history, and performing an at-home finger stick to obtain blood spots using a test kit that is mailed. The blood provided will be used for genetic testing and correlation of results with COPD history. Participants will receive their results and access to genetic counseling at the conclusion of the study.
A Randomized, Double-Blind, Placebo-Controlled, Crossover Design Study of CERC-501 in a Human Laboratory Model of Stress-precipitated Smoking Behavior.
This study is a randomized controlled trial (RCT) to compare the effects of varenicline, cytisine, and nicotine replacement therapy (NRT) to reduce: 1) alcohol use and craving, 2) smoking; and 3) inflammation and risk for coronary heart disease (CHD) and mortality among 400 HIV-infected Russians, with heavy alcohol consumption and tobacco use.
Endothelium is considered a real member, so it is contributing to determine the vascular homeostasis. The presence of endothelial dysfunction, evaluated in peripheral arteries by non-invasive study of the variation of gauge of the brachial artery as a result of post-ischemic hyperemia (FMD), is predictive of occurrence of major cardiovascular events. Several recent studies have shown that passive smoking is correlated with endothelial dysfunction and, therefore, non-smokers exposed subjects to passive smoking, have an increased risk of occurrence cardiovascular pathologies. From January 2008, a ministerial decree will ban smoking in bars, restaurants and nightclubs. The impact of exposure end to smoking in non-smoking subjects, as part of a prospective study and controlled, has never been evaluated.
This study will compare the effectiveness of two approaches for delivering smoking cessation advice in the primary care setting. Ask-Advise-Connect (AAC) is a strategy that uses the electronic health record (EHR) to prompt clinical staff to Ask if the patient smokes, Advise them to quit and, if they're interested, Connect them to Quitline (QL) counseling services. The connection occurs when a QL counselor is notified of the patient's interest, and then calls the patient to enroll in treatment. AAC has been shown to be very effective at enrolling patients, however, it was found that less than 42% of patients who agreed to be referred were successfully contacted by the QL after 5 call attempts. This indicates that many patients that are referred are not ready for cessation, but may feel obligated to accept the referral from their primary care team. This presents an opportunity to improve the patient centeredness of the referral process. To overcome these limitations, the investigators propose pairing it with a patient-centered smoking cessation approach called the Teachable Moments Communication Process (TMCP). The investigators' team developed this communication strategy, which incorporates patients' concerns into a partnership-oriented discussion about smoking cessation. The investigators propose that combining these two approaches could increase appropriate referrals to the QL, increase the likelihood of successful patient contact and enrollment, and increase the patient's rating of the value of the experience.
This purpose of the study is to develop and test a new website to help people who have bipolar disorder quit smoking.
Current study is the fourth wave of the policy-related survey on tobacco control in Hong Kong. It aims to investigate the level of public support on current and future tobacco control measures and taxation policies and to address the timely impacts of smoke-free policies, substantiate public support on further tobacco control measures and assist COSH in shaping policy direction for government. In total, 5000 subjects will be randomly selected for a telephone interview. The subjects will be categorized into three groups, i.e. never smokers (1667), ex-smokers (1667) and current smokers (1667). They will be required to answer a questionnaire via telephone. All data shall be collected using a Computer Assisted Telephone Interview (CATI) system, which allows real-time data capture and consolidation. All interviews shall be conducted anonymously. Analysis of survey data will aim to identify current opinion on tobacco control policies and implications for future policies. Analyses will be controlled for confounding variables as required by stratification into sub-groups based on important pre-defined characteristics and/or by multivariate analysis. Comparison with past trends and, where possible, extrapolation of future trends will be explored. Weights will be applied to adjust for the sex and age of Hong Kong population, and to handle the over-sampling issues of current smokers. The data analysis will be conducted by statisticians.
The purpose of this study is to assess the effects of administering N-Acetylcysteine (NAC) to assist in initial cessation and/or relapse prevention in adult cigarette smokers.
This study assesses the nicotine pharmacokinetic (PK) parameters in adopters of electronic cigarettes following a 12-hour tobacco and nicotine abstinence. The PK results of this study will be compared to historical data on smokers obtained in prior studies, as well as on naïve and short-term users of electronic cigarettes.