Active clinical trials for "Tobacco Use Disorder"

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 FDA recently gained the authority to regulate the nicotine content of cigarettes. Prior research suggests that smokers who switch to very low nicotine content (VLNC) cigarettes experience reduced addiction to nicotine and are more likely to quit smoking. Currently, the most common method for smokers to reduce their nicotine intake is to reduce their number of cigarettes per day (CPD). No research has compared reducing smokers' nicotine intake by switching to VLNC cigarettes vs by reducing CPD with regard to decreasing dependence or quitting; thus the investigators will examine the two strategies by randomizing smokers to 1) switch to VLNC cigarettes or 2) reduce CPD. In addition, all smokers will use the nicotine patch to help them reduce their nicotine intake.

This is a one-session study that participants complete remotely including consent, Experimental Tobacco Marketplace purchases, and assessments to examine the effects of cigarette and e-cigarette flavors on cigarette demand and substitution in the Experimental Tobacco Marketplace.

To examine reward processing and cognitive control both with and without the influence of vaporized nicotine in young adults with no history of cigarette use using EEG and fMRI. The goal is to determine whether acute nicotine administration using a Juul device would impact functional correlates of reward and inhibitory control in people who commonly use juul devices.

This study will consist of 2 phases. Phase 1 will be a one day crossover study to see the effects of study product on a smoker's desire to smoke, measured by changes in scores on questionnaires given over time. Phase 2 will be a two-week extension, in which subjects will self-administer the study product and visit the study site for assessment of desire to smoke and collection of samples for the evaluation of smoking-related biomarkers.

The purpose of this study is to assess the bioequivalence between two oral nicotine sublingual tablets, 2 mg and 4 mg.

Psychosocial treatments for drug abuse benefit some patients (Rawson et al 2004), but there is an urgent need for new treatment approaches that can improve treatment outcomes. One new approach involves facilitation of extinction of conditioned responses through the use of d-cycloserine, a partial agonist at the NMDA glycine site. This approach has proved useful for the treatment of several anxiety disorders. For example, treatment with d-cycloserine enhanced the efficacy of behavioral treatments for acrophobia (Ressler et al 2004) and social phobia (Hofmann et al 2006) by enhancing extinction of conditioned fear responses. This suggests that d-cycloserine has potential to enhance the efficacy of behavioral treatments for drug dependence by enhancing extinction of conditioned responses to drug cues. In this Phase I Cutting-Edge Basic Research Awards (CEBRA) application we propose a proof-of-concept study to examine effects of treatment with d-cycloserine for facilitating extinction of craving provoked by exposure to cigarette smoking cues. The benefits of this treatment approach together with cognitive behavioral treatment for reducing cigarette smoking will then be determined. Smoking cues will be presented using an established virtual reality simulator(Bordnick et al 2004; Bordnick et al 2005a)

The purpose of this study is to better characterize differences in mood, attention, brain activation patterns underlying the beneficial effects of pharmacological treatments previously demonstrated to be help individuals successfully quit tobacco smoking. Smokers will be randomly assigned to one of three treatments: 1) bupropion sustained release (SR), 2) nicotine patch, or 3) placebo patches plus pills across a 45-day period with a 3-week intensive post-treatment follow-up. In addition, 20 percent of the subjects will be randomized to a delayed-quit control group.

RATIONALE: A study that evaluates participants' beliefs about smokeless tobacco products and nicotine replacement therapy may be useful in helping smokers stop smoking. PURPOSE: This clinical trial is studying the acceptability of less harmful alternatives to cigarettes.

This study will examine the effects of high frequency, repetitive Transcranial Magnetic Stimulation (rTMS) on decision-making and smoking behavior.