View clinical trials related to Smoking.
Filter by:The purpose of this study is to examine cigarette smokers' use of electronic cigarettes (e-cigarettes), and how use of e-cigarettes affects short term smoking behavior.
The ultimate goal of this research is to develop a chronic care treatment package for smokers that will address the challenges and opportunities of each phase of the cessation process - motivation, preparation, cessation, maintenance, and relapse recovery. That is, to develop treatments for smokers not yet ready to quit, those who are preparing to quit, those actively engaged in the quitting process and those who have tried to quit but relapsed. To achieve this goal, this research comprises three distinct research studies, each of which represent a phase in a comprehensive chronic care treatment model for clinical intervention with smokers in the primary care setting: the Motivation Study, the Cessation Study, and the Long-term Quitting Study. The goal of each study is to test and identify effective intervention components for distinct phases of the smoking cessation process. These components will then be combined for future research on the effectiveness of this chronic care treatment package. This study is a 2x2x2x2 factorial design. Participants will be randomized to one of two levels on four different factors: 1) Nicotine Mini-Lozenge vs. No Mini-Lozenge, 2) Behavioral Reduction Counseling (intervention: BR) vs. No Behavioral Reduction Counseling, 3) 5Rs Motivation Counseling (intervention 5 R's) vs. No 5Rs Motivation Counseling, and 4) Behavioral Activation Counseling (intervention BA) vs. No Behavioral Activation Counseling. These components have strong theoretical and empirical support, but their relative, additive, and interactive effects are unknown.
The current study will test the effectiveness of a multi-modal behavioral intervention (the Oral Health 4 Life program) targeted to smokers who are ready to quit smoking and seeking services through tobacco quitlines. The investigators hypothesize that, compared to people in the control arm, participants in the enhanced intervention will: 1. Be more likely to quit smoking as evidenced by 7 day point prevalent abstinence rates at 6 month follow-up [primary outcome] and at 2 month follow-up [secondary outcome]. 2. Be more likely to see a dental care professional in the past 6 months at 6 month follow-up [primary outcome]. 3. Exhibit more positive change in relevant oral health knowledge/beliefs and attitudes (e.g., self-efficacy, motivation) that could influence future behavior change.
The purpose of the Patient and Provider Assessment of Lipid Management Registry (PALM) is to gain a better understanding of physicians' cholesterol medication prescribing practices, patient and physician attitudes and beliefs related to cholesterol management, and current utilization of cholesterol-lowering therapies given the new ACC/AHA guideline recommendations. The PALM Registry hopes to allow for the design of ways to improve cholesterol management and decrease the burden of cardiovascular disease (CVD) in the US.
Early changes associated with the development of smoking-induced diseases, e.g., COPD and lung cancer (the two commonest causes of death in U.S.) are often characterized by abnormal airway epithelial differentiation. Airway basal cells (BC) are stem/progenitor cells necessary for generation of differentiated airway epithelium. Based on our preliminary observations on SAE BC cells and FGFR2 signaling, we hypothesized that suppression of FGFR2 signaling in the SAE BC stem/progenitor cells by cigarette smoking renders these cells less potent in generating and maintaining normally differentiated SAE, shifting these cells towards a COPD associated phenotype. To test this, SAE basal cells will be isolated from cultured cells obtained through bronchoscopic brushings and analyzed through in vitro assays for their stem/progenitor capacities.
A single-center, randomized, controlled, switching, open-label, parallel cohort study. Smoking subjects will be confined to a clinic for 9 days. During their stay, baseline assessments during ad libitum smoking will occur for the first 3 days. Following baseline, subjects will be switched to either an Electronic Cigarette or Nicotine Gum, and post-product switch assessments will occur for 6 days.
The goal of this study is to get information from current smokers about how they feel towards both the electronic cigarette (e-cigarette) and the nicotine oral inhaler. This will include beliefs, harms, appeal, ease of use, enjoyment, and their use for helping people stop smoking.
The purpose of this study is to measure plasma nicotine uptake parameters, physiological measures, and subjective effect measures in smokers during and following a single ad libitum use of three electronic cigarettes versus combustible cigarettes and nicotine gum.
In 2011, the National Lung Screening Trial (NLST) reported that lung cancer mortality was reduced by 20% with spiral computed tomography (CT) compared to chest X-ray. It is estimated that 8 million people in the US are at high risk for lung cancer and that lung screening could prevent 12,000 deaths annually. Cost effectiveness models suggest that concurrent smoking cessation programs will be essential in order to realize the full benefit of screening. However, there are no clinical guidelines or evidence-based cessation protocols with demonstrated effectiveness in this setting. The investigators are addressing this gap by rigorously testing whether two scalable and pragmatic interventions can significantly boost intention to quit and cessation rates.
The universe of tobacco products is expanding, with new noncombustible products gaining popularity even as the reduction in prevalence of cigarette smoking slows or stalls. E-cigarettes, or Electronic Nicotine Delivery Systems (ENDS), are the most prevalent of these emerging noncombustible products. With sales increasing rapidly and more efficient pulmonary delivery devices under development, ENDS are likely to play an increasing role in the future tobacco market. Little is known about the cognitions and behaviors leading to or sustaining ENDS use. Smokers may use ENDS to subvert smoking restrictions, to reduce perceived smoking harms, or for smoking cessation. Evidence about ENDS use is emerging from national surveillance and laboratory research, but the majority of information on ENDS is limited to retrospective surveys and convenience samples of White male ENDS users. The investigators research suggests Black smokers are less likely than White smokers to try and be current ENDS users, perhaps due to a greater degree of perceived harm associated with ENDS, a preference for menthol, or cultural norms. Thus, it is timely and critical to study how all smokers, including Blacks and menthol smokers, experience and initiate ENDS use employing valid, innovative research methods.