Active clinical trials for "Tobacco Use Disorder"

The objective of this proposal is to elucidate effects of bupropion SR + varenicline on smoking-cessation related processes in early abstinence using a human laboratory model. A within-subjects design will be used to assess the additive effects of bupropion and varenicline in 48 treatment seeking smokers [bupropion SR (300 mg/day)+placebo, varenicline (2 mg/day+placebo, and bupropion SR (300 mg/day)+varenicline (2 mg/day)]. Outcomes include withdrawal and craving, cognition, stress tolerance, anxiety, the reinforcing effects of smoking, and smoking topography. Hypotheses: We hypothesize that greatest treatment effects will be observed in the bupropion SR+varenicline group followed by varenicline+placebo and bupropion SR+placebo groups.

We plan to examine the feasibility, acceptability, preliminary quit rates, overall nicotine exposure and adverse effects of the nicotine inhaler for smoking cessation in pregnancy.

This is a brief smoking cessation trial in women, comparing transdermal nicotine patch (TNP) versus varenicline.

This randomized trial compared the effectiveness of a three session pharmacist-delivered group program for smoking versus one 5 to 10 minute standard care session delivered over the telephone on 7-day point prevalence quit rates. Participants in both groups were offered their choice of bupropion IR or nicotine patch at no cost. At 6 months after the established quit date, self-reported cessation was biochemically verified using tests for urinary cotinine.

RATIONALE: A stop-smoking plan that includes health education counseling and bupropion may help African-American smokers stop smoking. It is not yet known whether health education counseling is more effective with or without bupropion in helping African Americans stop smoking. PURPOSE: This clinical trial is studying health education counseling and bupropion to see how well they work compared with a placebo and health education counseling in helping African Americans smokers stop smoking.

This is a randomized, controlled trial (RCT) to test the efficacy of an internet continuing dental education intervention designed to increase tobacco cessation counseling in dental practices. The intervention involves surveying practices regarding preventive care, surveying adult patients about their tobacco habits and preventive care provided by dental practice and training/educating the dentist and office staff on tobacco cessation. With patients who smoke and indicate that they have quit, we followed up with testing their saliva for the presence of cotinine. We have enrolled general dentists and periodontists who practice in the Southeastern United States.

Recently, tobacco companies have developed new oral tobacco products that are purportedly less harmful than conventional tobacco products. These products have not been tested by independent research for their health effects or consumer palatability. In addition, it is not known if these products will be used in addition to cigarette smoking or as a substitute to cigarettes. These two studies will examine four oral tobacco products to answer some of these questions. The goals of this first study will be to examine: 1) the brand of oral tobacco products which is preferred by cigarette smokers and the pattern and amount of product use when used as a switching tool; 2) the characteristics that are associated with product choice; 3) nicotine exposure from these products; and 4) the withdrawal symptoms from the tobacco products and potential for continued use. Specifically, our primary aims hypotheses were: 1) the product that will be chosen by most smokers will be based on taste and sensory aspects of the product with products higher in nicotine content more likely to be chosen as the preferred product; and 2) subjects will experience no difficulty using the product for complete cigarette substitution, but a small minority will engage in dual product use. For the secondary aims, we hypothesized: 1) that compared to the subjects' own brand of cigarettes, the biomarkers for exposure for the oral tobacco products will be significantly lower; 2) withdrawal symptoms from the oral products are likely to occur, but are likely to be mild compared to cigarette withdrawal.

The purpose of this study is to examine whether the adjunctive use of bupropion SR in the context of a psychoeducational program modified for people with schizophrenia might improve the likelihood of successful abstinence in this population. If bupropion SR is effective for reducing cigarette smoking, then it will be important to determine if decreased nicotine intake is associated with a worsening of psychotic, anxiety or depressive symptoms. In addition, it would be important to determine the effect that a reduction in nicotine stimulation would have on patient's cognitive functioning, as nicotinic receptors have been shown to regulate attention and memory function, and it is hypothesized that these functions are normalized by acute nicotine administration in people with schizophrenia

The purpose of this preliminary study was to evaluate the intervention completion rate among cigarette smokers enrolled through the Emergency Department (ED) in a tobacco quitline (QL) and to assess the feasibility of a randomized controlled trial assessing the efficacy of this intervention.

The purpose of this study is to test whether Varenicline can help ambivalent smokers (those who are interested in quitting at some point in the future but have no current plans to quit) to reduce their smoking and eventually quit.