View clinical trials related to Nicotine Use Disorder.
Filter by: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.
Using a 2x2 randomized factorial design, we will conduct a statewide field trial in Missouri to compare the relative and combined effects of these two strategies for augmenting an existing, evidence-based tobacco quitline program. Among 2000 low-income smokers, half will receive standard Missouri quitline services and half will receive new Specialized Quitline services targeted to this group. In each of these groups, half also will receive calls from a trained navigator to help them address unmet Basic Needs and the accompanying psychological distress that act as barriers to smoking cessation.
The purposes of this study are 1) to determine the pharmacokinetics of nicotine after multiple dose administration by electronic cigarette and 2) to compare the acute effects of multiple dose of nicotine administrated by electronic cigarette compared with those obteined by cigarette.
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
In the current proposal, we intend to study the efficacy of bupropion SR with or without combined contingency management (CM) among adolescent cigarette smokers. The proposed study will test not only medication (bupropion SR), but also combination of medication and CM in potentially improving smoking cessation outcomes AND retention of adolescent smokers in the study. Hypothesis to be tested: Bupropion SR treatment will increase abstinence from cigarette smoking (as measured by urine cotinine and continuous abstinence) in adolescent smokers as compared to treatment with placebo only. Hypothesis to be tested: Adolescent smokers treated with combined bupropion SR + contingency management (CM) treatment will have increased retention and increased abstinence rates when compared to bupropion SR alone or CM + placebo treated groups (as measured by decreased drop-out of participants, urine cotinine and continuous abstinence). Hypothesis to be tested: CM will increase the abstinence from cigarette smoking (as measured by urine cotinine and continuous abstinence) in adolescent smokers as compared to treatment with placebo only.
The purpose of this study is to determine whether baclofen is effective in reducing smoking urge, withdrawal, and reinforcement in moderate to heavy cigarette smokers.