View clinical trials related to Tobacco Dependence.
Filter by:The overall goal of this study is to determine if switching to very low nicotine content cigarettes changes the function of brain circuitry involved in incentive salience and executive control among dependent smokers.
The primary goal of the proposed research is to test whether varenicline (Chantix) is safe and effective as an over-the-counter (OTC) medication.
The 2-year research plan will test the Extended Put It Out Project (POP-6) in a pilot randomized trial (N=168) compared to TSP-6, as well as comparing POP-6 and TSP-6 to the POP-3 and TSP-3 interventions from a previously-conducted trial. Participants will be young adults who smoke, identify as sexual or gender minorities (SGM), and use Facebook. Primary outcome will be biochemically verified 7-day abstinence from smoking at 3 and 6 months. Secondary outcomes will be a quit attempt (y/n), stage of change, and thoughts about tobacco abstinence at 3 and 6 months.
Schizophrenia is associated with high rates of cigarette smoking and associated morbidity and mortality. In this study, smokers with schizophrenia will complete a baseline session and then randomized to varenicline (VAR) or placebo (PLA). After 1 week on medication, participants will complete a cigarette rating task session. Participants will then undergo a 72-hr abstinence period in which they will come to the laboratory twice per day and receive high-value cash reinforcement contingent upon meeting a strict breath CO abstinence criterion. At each visit, they will rate withdrawal symptoms, mood and craving. At the end of the abstinence period, they will repeat the cigarette rating task. Participants will return to the lab to provide a CO sample 24 hours later, and will text the lab with videos of their CO samples for one week. Date and time of smoking relapse will be measured from these samples.
This study is about whether or not little cigars and cigarillos cause or maintain addiction, and if flavors, such as fruit, make them more addictive. The purpose of this study is to understand the addiction potential of little cigars and cigarillos compared to cigarettes in young adults who smoke both products. This study will also look at the differences between men and women. In the rest of this form, little cigars or cigarillos will be referred to as LCCs.
This project will develop and refine a computer-delivered integrated Personalized Feedback Intervention (PFI) that directly addresses smoking and anxiety sensitivity (AS). The PFI will focus on feedback about smoking behavior, AS, and adaptive coping strategies.
This is a research study to verify the same effectiveness and safety profile for the test products, nicotine 2 mg gum and nicotine 4 mg gum, as for the already approved products, Nicorette Mint 2 mg gum and Nicorette Mint 4 mg gum (reference products), in a standardized mode. This verification is done in a so-called bioequivalence study, which means that the same amount of the same active substance (nicotine), in the same dosage form, for the same route of administration, and meeting the same or comparable standards is performed. During the study visits, blood samples will be drawn to measure the level of the substance in the blood to verify that the two test products are comparable to the reference products. Tolerability of the treatments will be evaluated based on reported and observed adverse events.
The 2-year research plan will test the Put It Out Project (POP) in a pilot randomized trial (N=120) compared to TSP and two historical control conditions. Participants will be young adults who smoke, identify as sexual or gender minorities, and use Facebook. The primary outcome will be biochemically verified 7-day abstinence from smoking at 3 and 6 months. Secondary outcomes will be a quit attempt (y/n), stage of change, and thoughts about tobacco abstinence at 3 and 6 mos.
Tobacco is the most preventable cause of disease and death in Canada. Although the tobacco use rate has substantially gone down in the general population, significant differences exist between sub-populations in Canada, for example Ottawa's highly vulnerable homeless or at-risk for homelessness population has an almost 100% tobacco smoking rate relative to 9-18% in the rest of the Canadian general population. This stark inequity in tobacco use translates into devastating healthcare outcomes such as a disproportionate amount of cancer, stroke, heart disease and death. Canadians who are homeless or at-risk for homelessness die 25 years earlier than housed Canadians, mostly due to tobacco. In order to tackle this tobacco use related inequity - a novel approach is urgently needed. Despite commonly held dogma that People Who Use Drugs (PWUD) don't want to quit smoking, many studies have demonstrated that in fact they are very interested in quitting. Moreover, the investigators pragmatic peer-led community-based action approach used in their PROMPT project has demonstrated that tobacco dependence strategies can be implemented with great success in this population. The majority of PROMPT participants reduced or quit tobacco use, in addition to reducing or quitting all other drug use. Importantly, the investigators have demonstrated that it is possible to gain the trust and engagement of marginalized populations and that researchers can create a community space that is low-threshold, safe and non-judgmental. The investigators aim to compare two tobacco dependence management strategies in the homeless (or at-risk for homelessness) multi-drug use population in Ottawa and Toronto. They will use the same peer-led approach in PROMPT with community peer researchers with lived experience; with the hope that the cost-effective community based framework derived from this trial will serve as a template for interventions and treatments in community settings for chronic diseases such as obesity and diabetes.
This project aims to develop electroretinogram as a new putative marker for dopamine release, and as a predictor of treatment response among patients seeking treatment for smoking cessation. Tobacco smoking continues to be a major public health challenge. Dopamine is a neurotransmitter released in the brain. Several lines of evidence suggest that dopamine release deficit in the brain is involved in the development and maintenance of nicotine dependence. The investigators hypothesize that smokers who do not have a deficit in dopamine release will more readily respond to behavioral treatment for smoking cessation, and in particular, financial incentives contingent on abstinence (Contingency Management). Previous pilot data suggest electroretinogram (ERG), which records electrical signals from the retina in response to light, is a clinically accessible correlate to dopamine release in the brain. The project proposes an ERG-based biomarker, and a pilot clinical trial to apply this biomarker to personalize smoking cessation treatment. This clinically tractable biomarker of central dopamine release may have a large number of future applications in the diagnosis and treatment of other mental illnesses and substance use disorders. The study will recruit normal controls and smokers, measure ERG before and after a standard dose of oral immediate release methylphenidate. Smokers will undergo a 12-week standardized treatment course of CM. The investigators will test whether smoking status and the response to CM are correlated to changes in ERG in response to methylphenidate challenge.