643 Clinical Trials for Various Conditions
The purpose of the study is to learn more about the relationships between the brain, behavior, and natural daily exposure to particular environments, including the places where smokers regularly spend time and specific retail outlets.
This trial uses an online survey to study smoking attitudes and behaviors among current smokers. An online survey consisting of questions about general demographics, smoking history, smoking attitudes, smoking behaviors, smoking intentions, health and qualities of daily life may help researchers understand the differences in smoking attitudes and behaviors among current smokers.
The primary aim of this study is to examine the efficacy of Decídetexto, an innovative mobile smoking cessation intervention that incorporates two elements: 1) a tablet-based e-Health platform that collects personal smoking-related information to support the development of an individualized quit plan and guides the ensuing text messaging program; and 2) a 12-week text messaging "skills-based counseling" (I.e, behavioral support) program that includes educational information, behavioral strategies, motivational messaging, and pharmacotherapy support driven by information obtained from both the tablet program and the user's text messages. The investigators will evaluate its efficacy relative to a standard care condition that provides high quality printed smoking cessation materials along with referral to telephone quit line counseling. Participants in both groups are given access to free pharmacotherapy via a toll-free study number. Experienced Promotores de Salud (Community Health Workers) will use community and clinic-based outreach to recruit Latino smokers into the study. Participants in both conditions will complete follow-up assessment at the end of treatment (Week 12) and Month 6 (primary outcome). Our hypothesis is that at month 6, smokers in Decídetexto will have significantly higher cotinine-verified 7-day point prevalence abstinence (no cigarettes in the past 7 days) than smokers in the control arm.
The purpose of this study is to evaluate reactions to, and choices to self-administer, cigarette smoke with varying nicotine content among low-frequency, non-dependent adolescent/young adult smokers between the ages of 15-25 years.
The purpose of the study is to explore how feedback of cellular DNA (Deoxyribonucleic Acid) damage, as a marker of exposure to the genotoxic agents of tobacco smoke, promotes cessation.
The purposes of the present proposal are to 1) compare inhaled albuterol-induced changes in airway blood flow (Qaw), and in CO and Ppas in healthy current smokers and lifetime non-smokers as an index of endothelial function in the airway and pulmonary circulations, 2) compare the results between smokers and non-smokers, and 3) determine the effect of a 4-week treatment with an ICS on albuterol responsiveness of Qaw and the echocardiographic parameters. With this protocol the Investigators will test the hypotheses that a) there is a correlation between airway and pulmonary vascular endothelial function within the current smoker and non-smoker groups, and b) ICS treatment improves airway and pulmonary vascular endothelial function in the current smoker group.
The goal of this research study is to collect information from Latino and Hispanic smokers and recent quitters about factors that are important to them when they are trying to quit. Researchers want to better understand some of the challenges and problems that Latinos and Hispanics face when they try to quit smoking, and then use that information to design a treatment for future smokers.
The proposed study will examine the threshold for nicotine self-administration (NSA) using five different nicotine doses in young adult male and female non-dependent smokers (light and intermittent smokers or LITS). We propose a double-blind, placebo-controlled study that will enroll 195 individuals, targeting a total of 72 completers (36 male and 36 females). In each of the five experimental sessions, smokers will be randomly assigned to one of the five doses of nicotine (0.0125, 0.025, 0.05, 0.1 and 0.2 mg/70 kg). The highest dose, 0.2 mg/70 kg, corresponds to nicotine delivered by about one or two puffs of a cigarette. At the beginning of each experimental session, smokers will sample the assigned both the nicotine dose for that experimental session, and the placebo (saline) dose, followed by the opportunity to choose between nicotine and placebo for a total of ten choices over a 150-minute period. The main outcomes will be threshold dose (the minimum dose of nicotine that is self-administered more than placebo) and the slope of dose-response for nicotine self-administration (changes in nicotine self-administration per unit change in nicotine dose). We will also collect measures of nicotine intake (cotinine), nicotine clearance (3-hydroxycotinine (3-HC) / cotinine), and self-report drug effects
The hypothesis underlying the proposed study is that the blunted endothelium-dependent vasodilation seen in the airway of current smokers is also present in the brachial artery, and that the same inhaled corticosteroid (ICS) treatment regime that reversed endothelial function in the airway of current smokers will also restore endothelium-dependent relaxation in the brachial artery. Non-smokers will be used as controls and will not receive any intervention or treatment.
Cigarette smoking is the major risk factor for chronic obstructive pulmonary disease (COPD, commonly known as chronic bronchitis and emphysema). Despite this clear link, only 15-20% of smokers develop COPD suggesting that genetic factors affect the lung's susceptibility to the stress of cigarette smoke. The cells lining the airways (epithelium) and cells that help defend the lung (alveolar macrophages) of smokers develop gene expression changes that are different from that of nonsmokers. In the investigators' previous studies they have demonstrated that there are greater than 200 genes that are responsive to cigarette smoke in these cells. But the investigators do not know whether the gene expression is static or changes as a function of time. Genes that show significant changes over time may be relevant to the progression of the disease. Even though quitting smoking reduces the rate at which the lungs decline, many-smokers still go on to develop COPD. This study will provide insights into the natural history of smoking-related gene expression of the lung cells in health and disease.
The objective of this trial was to assess the pharmacokinetics of a single dose of 10 mg Staccato Loxapine administered to smokers compared to nonsmokers.
Little is known about the support needed to improve compliance with Chantix for smoking cessation. This is a two arm pilot study of African American smokers to provide varying levels of side effect management and compliance support during a 12 week treatment period. The primary aim of the study is to estimate the effect of induction support compared to standard care in increasing compliance with Chantix at month 3
The purpose of this study is to help us better understand the cellular changes that may lead to the development of lung cancer. We want to compare people who have never smoked and yet have been diagnosed with lung cancer to never smokers who have not developed lung cancer. We hope to use the information obtained in this study as the basis for future studies and will not regard the results from this study as final.
To determine whether an average population of males and females who smoke 10 pack years or more of cigarettes in a primary care setting with chronic bronchitis has already developed significant changes on pulmonary function testing.
This study will investigate the effect of smoking on the metabolism of a single oral dose of GW876008.
This clinical trial compares the use of oral nicotine pouches to nicotine replacement therapy, consisting of nicotine patches and lozenges, to reduce cigarette use in smokers living in rural Appalachia. The lung and oral cancers that plague Appalachia are fueled by cigarette smoking. Oral nicotine pouches which contain nicotine but no tobacco leaf, present a new opportunity to reduce cancer risk among Appalachian adults who smoke. Oral nicotine pouches and nicotine replacement therapy may work well to reduce cigarette use for smokers in rural Appalachia.
Young adults are particularly vulnerable to psychological distress during the transition from adolescence to adulthood, making them more susceptible to developing persistent substance use. The tobacco industry capitalizes on this vulnerability by using marketing tactics to promote tobacco initiation and facilitate the progression from experimental tobacco use to long-term use. In China, where the average age of starting daily smoking is 21.1 years old, the number of current young adult smokers exceeds 29 million. It is crucial to develop effective communication messages to counter the tobacco industry's marketing strategies and protect the health of young adults in China. This project aims to test the effects of different anti-smoking message themes among Chinese young adults. In this online randomized clinical trial, participants will be randomly assigned to one of five antismoking message conditions. The investigators will compare the effects of these themes with each other and with the control condition.
The goal of this study is to design and test the first mobile contingency management (CM) smoking cessation intervention for military Veterans undergoing major elective surgery. Smoking is the leading risk factor for postoperative complications and is associated with longer hospital stays, reoperations, and 30-day mortality. Smoking rates among patients undergoing major elective surgery are high, 22.3-43.0%. It is imperative to identify efficacious, strategically timed smoking cessation interventions for surgery patients. CM incentivizes smoking cessation through positive reinforcement (rewards) when bioverified abstinence is achieved. To ensure feasibility, CM must be tailored to the clinical context. CM for smoking cessation has never been delivered before and after major surgery, nor has mobile CM bioverification been trialed perioperatively. The investigators will develop and test a tailored mobile smoking cessation CM protocol for Veterans undergoing major elective surgery.
The goal of this project is to test if a new behavioral treatment for people who smoke nondaily and wish to quit works. The new treatment is a smartphone app that engages users in positive psychology exercises and gives them tested tools for quitting smoking. The positive psychology exercises help users maintain their positive emotions while they quit smoking. This app has been developed with and for people who smoke nondaily through several steps of development. The main questions it aims to answer are: * Does the smoking cessation app (SiS4) help people who smoke nondaily quit smoking? * How do people's attitudes towards smoking, their smoking urges, and their mental well-being shift when using the SiS4 app? Researchers will compare the new app to an existing app that was developed for people who smoke daily to see if the new app works better to help people who smoke nondaily quit smoking. Participants will: 1. Use a smartphone app every day for 7 weeks 2. Complete online surveys about their smoking, attitudes about smoking, withdrawal symptoms and smoking urges, app use, and mental well-being at enrollment as well as 2 weeks, 6 weeks, 3 months, 6 months and 12 months after the initially chosen quit date. If the SiS4 app works well, it would be the first evidence-based quit-smoking treatment for people who smoke nondaily.
This clinical trial evaluates the effect of message framing on smoking behaviors among lesbian, gay, bisexual, transgender, queer (LGBTQ+) young adults who use nicotine and/or tobacco. Tobacco regulation has contributed to a steady decline in tobacco products designed to be smoked (combustible), but there has been an increase in the use of new tobacco products, such as electronic nicotine delivery systems (ENDS). The use of more than one tobacco product (polytobacco) is high in LGBTQ+ populations. Both LGBTQ+ people and people who engage in polytobacco use are less likely to view tobacco as harmful, which may reinforce tobacco use. Message framing includes culturally targeted messages to communicate the absolute risks (AR) and relative risks (RR) of polytobacco use. Using message framing may increase quit rates or change smoking behaviors in LGBTQ+ young adults who use nicotine and/or tobacco products.
This study's long-term goal is to improve clinical outcomes among smokers living with HIV (SLWH) by providing smoking cessation interventions in HIV clinical care that will increase the chances of quitting smoking, limits costs and burden on staff and reach many smokers living with HIV.
The goal of this clinical trial is to compare the reach and effectiveness of the Refer2Quit intervention for increasing tobacco use treatment and quit rates among household members who smoke versus a treatment as usual group. This clinical trial also aims to study household member and pediatric patient characteristics that are associated with reach and effectiveness of Refer2Quit.
To verify whether unrestricted access to flavored products is likely to lead to greater reductions in combustible cigarette smoking and decreased exposure to smoking related toxicants.
To compare the efficacy of e-cigarette (e-cig) provision with or without behavioral support (SWITCH IT) delivered via telehealth to reduce harm among smokers with MI who cannot quit smoking and are not ready to pursue cessation treatment, and to examine self-regulation (using e-cigs instead of cigarettes to cope with stress/distress and self-efficacy) as a potential mechanism for behavior change from SWITCH IT
Recent studies and market monitoring have shown that in places where menthol cigarettes are no longer available, tobacco companies have started marketing "non-menthol cooling cigarettes". Little is known about what current menthol smokers think of these non-menthol cooling cigarettes and how they compare to regular menthol cigarettes. By doing this study, the investigators hope to learn what menthol smokers think of these cigarettes and how they impact how menthol smokers smoke.
This phase II trial evaluates how a virtually supervised exercise intervention in combination with group counseling affects inflammation and the bacterial composition (microbiome) of the gut in smokers who are at high risk for lung cancer. Physical exercise has been shown to reduce lung cancer development and to have beneficial effects on the gut microbiome and inflammation. Group counseling may promote adherence to the exercise intervention by empowering participants to exert greater control over their behavior and environment. This clinical trial may help researchers understand how exercise impacts inflammation and the microbiome in people at risk for lung cancer and whether or not exercise with counseling can improve health outcomes in high-risk individuals.
This decentralized clinical trial assesses the feasibility of conducting a tobacco product evaluation study remotely via telehealth visits and mailed samples. This is an open label, between-subject, randomized pilot study to assess the effect of minimal filter ventilation vs. moderate filter ventilation on smoking behavior and biomarkers of exposure (e.g., nicotine, carbon monoxide) in menthol smokers switched to non-menthol cigarettes. Subjective measures, alveolar carbon monoxide, blood pressure and cigarettes smoked per day will be collected remotely. Biological samples will be collected at home and mailed into the clinic.
Safety assessment of long-term 3 mg cytisinicline three times daily (TID) exposure for 52 weeks is the main purpose of this study, conducted in the United States.
The purpose of this study is to assess the feasibility and safety of injectable naltrexone (NTX;380 mg) in conjunction with oral bupropion (BUP; 450 mg daily)NTX-BUP administration among individuals with schizophrenia spectrum disorders that smoke cigarettes and to evaluate change on smoking-related measures and symptoms of schizophrenia.
This between-subjects study aims to evaluate whether e-cigarettes (ECIGS) versus oral nicotine pouches (ONPS) more readily substitute for combustible cigarettes among 200 cigarette smokers. After measuring baseline cigarette smoking rate, participants will be randomized to ECIGS or ONPS and be instructed to switch (versus smoking cigarettes) over a 6-week period. Relative reductions in biomarkers of exposure will be measured. ECIG- and ONP-associated subjective reward and the reinforcing value of ECIGS and ONPS relative to combustible cigarettes will be assessed as mechanisms.