View clinical trials related to Nicotine Dependence.
Filter by:Background Smokers often reject drugs as smoking cessation aids. Nonpharmacological interventions are notoriously under-evaluated. Methods We conducted a randomized clinical trial in which we compared a medication, i.e., sustained-release bupropion (Zyban®; 413 subjects), at the time of the trial the most efficacious pharmacological smoking cessation aid, with an ultrashort psychotherapeutic intervention, Psychodynamic Model Training® (366 subjects), a manual-based psychodynamically oriented 1 ½ day autosuggestion training. Outcome criterion was 12-month self-reported continuous abstinence confirmed by urine cotinine levels below the level of detection (13 ng/ml) or, in an independent analysis, by exhaled carbon monoxide of 10 ppm or less at all interviews conducted at 3, 6, and 12 months.
The use of smokeless tobacco (ST) as a substitute for cigarette smoking has been suggested since it is considered by some to be a less harmful tobacco product (Russell, Jarvis and Feyerabend, 1980; Russell et al, 1981; Rodu, 1994). ST does not have the volatile constituents and carbon monoxide (CO) that are found in cigarette smoke. Since ST is not smoked there would be less risk of cardiovascular and lung disease. In addition the harm associated with second hand smoke would be eliminated. Although the health risks are reduced in ST users, they still exist due to the presence of nitrosamines found in ST. A better approach would be to use nicotine replacement that did not contain carcinogens, however the cost of such NRT could be prohibitive especially in third world countries where the rate of smoking is continuing to rise and the per capita income is much lower than in the United States. Purpose: The goal of this study is to evaluate the health effects of Camel Snus, the new oral tobacco product produced by RJ Reynolds and Taboka, produced by Phillip Morris. These products are pasteurized rather than fermented and contain less moisture to eliminate spitting. They are marketed as an alternative to cigarette smoking.
This study is designed to test the efficacy of an extended smoking cessation program for teen smokers. We hypothesize that teen smokers randomized to extended treatment will have a higher abstinence rate at 52 week follow-up than teen smokers receiving only open label treatment.
The purpose of the experiment is to examine the effect of smoking on how individuals recognize and interpret sensory information.
The purpose of this study is designed to examine the effects of Selegiline Transdermal System and behavioral intervention in smoking cessation as compared to behavioral intervention alone.
This research project addresses the hypothesis that a neurocognitive profile characterized by impairment of response inhibition and sustained attention may be a risk factor for smoking initiation and nicotine dependence among young women. Nicotine has short- term, facilitating effects on attention and response inhibition. Therefore, individuals who are impaired on cognitive functions such as these and initiate cigarette smoking may be more likely to maintain the habit and develop nicotine dependence. The research protocol specifically tests whether administration of nicotine to non-abstinent, regular cigarette smokers improves cognitive function in those domains where the participants had previously been shown to manifest performance deficits
The purpose of this study is to compare the effects of self-help materials for smoking cessation and self-help materials for smoking cessation plus prize-based contingency management (CM), in which prize incentives are available for breath and saliva samples that indicate smoking abstinence, in substance abuse treatment patients who want to quit smoking.
Cigarette smoking decreases life expectancy, causes devastating health complications, and costs society billions of dollars each year. These untoward consequences are especially pronounced among persons with schizophrenia (SCZ) because approximately 80% to 95% of this group smokes cigarettes. These high prevalence rates underscore the need for research investigating the determinants of smoking in patients with SCZ. Several researchers have observed that nicotine improves specific symptoms of SCZ including negative symptoms, negative affect, and cognitive deficits. This has led to the hypothesis that patients with SCZ smoke in an attempt to self-medicate. However, the mechanism(s) by which nicotine has its positive effect on symptoms remains unclear. The current proposal posits that neural inhibition (NI) is a physiological mechanism of this effect, while variation in the alpha-7-nicotinic receptor subunit gene (CHRNA7) represents the genetic underpinnings of these processes. The proposed study will assess NI and symptom improvement after acute administration of nicotine to both smokers and nonsmokers with SCZ. In addition, NI and CHRNA7 variation will be tested as predictors of patients' ability to reduce/quit smoking following smoking treatment. These data may lead to the development of new pharmacological strategies for treating the symptoms of SCZ and new methods for assisting these patients to quit smoking.
After a steady decline for the last 50 years, the prevalence of tobacco use in the United States has reached a plateau of approximately 23%. Currently available treatments among adults are expensive and not efficacious for all tobacco users. New pharmacologic agents need to be developed and tested to achieve the Healthy People 2010 goal of less than a 12% adult tobacco use prevalence. Bupropion, an FDA approved agent for tobacco cessation, acts by inhibiting central synaptosomal reuptake of dopamine and norepinephrine. A widely used herbal antidepressant, St. John's Wort (SJW), shares a similar mechanism of action and is effective for treating mild to moderate depression. SJW is well tolerated, available over the counter, and is significantly less expensive than the established treatments for tobacco dependence. To date, no prospective clinical trial evaluating the efficacy of SJW for the treatment of tobacco use has been published. We propose to evaluate the efficacy of SJW for increasing tobacco abstinence and decreasing nicotine withdrawal symptoms in a randomized, double-blind, placebo-controlled, three-arm, parallel group, dose-ranging clinical trial. Participants (N=120) will be randomly assigned to one of the three groups and will receive a twelve-week course of SJW 900 mg per day, 1800 mg per day, or a matching placebo. This study is anticipated to provide the data needed to develop a larger randomized controlled clinical trial submitted through the R01 funding mechanism.
Although spousal support predicts the success of a smoker's cessation efforts, "social support" interventions based on teaching partners better support skills have had consistently disappointing results. We examined the potential utility of a family-consultation (FAMCON) intervention based on family-systems theory in a treatment-development project involving 20 couples in which one partner (the primary smoker) continued to smoke despite having or being at significant risk for heart or lung disease. Results were promising. The 50% rate of stable abstinence achieved by primary smokers over at least 6 months exceeds benchmark success rates reported in the literature for other, comparably intensive interventions, suggesting that a couple-focused intervention different in concept and format from social-support interventions tested in the past may hold promise for health-compromised smokers. The FAMCON approach appeared particularly well-suited to female smokers and smokers whose partner also smoked – two sub-groups at high risk for relapse.