View clinical trials related to Tobacco Use Disorder.
Filter by:The objective of the study is to determine the effect of non-invasive brain stimulation on craving for tobacco and brain metabolites.
The primary aim of this study is to conduct a 60-patient feasibility, acceptability, and preliminary efficacy study of mSMART (Mobile App based Personalized Solutions and Tools for Medication Adherence of Rx Pill), a smartphone application ("app") for improving medication adherence among substance users. The investigators will compare 2 groups of cigarette smokers undergoing a quit attempt with varenicline (Chantix): a) an experimental group using the mSMART app on their smartphone and a MEMS Cap (Medication Event Monitoring System, a smart pillbox that will a record a date and time-stamped medication event whenever pill box is opened and closed, and thus allow for primary measurement of medication adherence) and b) a control group using the MEMS Cap and mobile web-based surveys on their smartphone.
Smoking rates among individuals with psychiatric disorders are disproportionately higher than the general population. The majority of psychiatric hospitals ban smoking on hospital grounds, thus providing an opportunity for inpatients to experience abstinence. Yet smokers in inpatient psychiatric settings are infrequently provided with referrals for cessation treatment on discharge (< 1 %) and most resume smoking upon discharge. Therefore, the integration of effective cessation interventions within the current mental health treatment system is a public health priority. The overall objective of this project is to adapt a Sustained Care (SusC) model to smokers with severe mental illness (SMI) engaged in a psychiatric hospitalization and to conduct a randomized, pragmatic effectiveness trial designed to assess the benefit of this adapted SusC intervention in real-world practice. We will test the hypothesis that, among smokers with SMI in inpatient psychiatric treatment (n = 422), SusC will result in significantly greater rates of cotinine-validated, 7-day point prevalence abstinence at 6- and 12-months compared to a group that receives Usual Care (UC) about smoking cessation. Furthermore, we hypothesize that a higher proportion of SusC vs. UC patients will use evidence-based smoking cessation treatment (counseling and pharmacotherapy) in the month after discharge. We will also explore the effect of SusC on health and health care utilization in the 12 months post-discharge (psychiatric symptoms, psychiatric and medical hospital readmissions and emergency room visits) and the effectiveness of SusC on smoking abstinence in patient diagnostic subgroups. The expected outcome of this project is a demonstration of the effectiveness of a Sustained Care intervention for smoking cessation in individuals with severe mental illness (SMI) following psychiatric hospitalization. Future studies could extend these findings to individuals with SMI receiving outpatient psychiatric treatment or psychotherapy. Overall, this research would have a significant positive public health impact that will move us closer to the long-term goal of dissemination and integration of the Sustained Care model to increase smoking cessation and decrease smoking related morbidity and mortality in people with severe mental illness.
The goal of this project is to evaluate the feasibility, acceptability, and effect size of a new computerized Motivational Enhancement Therapy (cMET) intervention for alcohol-involved adolescents in primary care.
Background: - Smoking is a difficult habit to quit, and some people find it more difficult to quit than others do. Nicotine is the substance in cigarettes that makes smoking so addictive. Nicotine changes some patterns of brain activity, and smokers have differences in brain activity when compared to non-smokers. Some genes make it more likely that a person will become addicted to smoking. Researchers want to study how nicotine interacts with genes and brain activity. This may help develop better treatments to help people quit smoking. Objectives: - To develop a test of nicotine dependence, using brain activity and genetic analysis, which may be useful in predicting success in smoking cessation and in the development of new smoking cessation treatment targets. Eligibility: - Main group: Current smokers between 18 and 55 years of age who are seeking treatment to quit. - Comparison group: Current smokers between 18 and 55 years of age who are not seeking to quit. - Comparison group: Healthy former smokers between 18 and 55 years of age. - Comparison group: Healthy nonsmoking volunteers between 18 and 55 years of age. Design: - Participants will be screened with a physical exam and medical history. Blood samples will be collected. - The three comparison groups will have one magnetic resonance imaging (MRI) scan session. They will have tests of thinking, concentration, and memory both inside the scanner, and while sitting in front of a computer. - Current smokers who are trying to quit must be willing to undergo a course of nicotine treatment that includes weekly counseling (for 12 weeks) and e-cigarettes. Participants will attempt smoking abstinence and will have a total of 6 MRI scanning sessions. They will do thinking, concentration, and memory tasks inside and outside of the scanner. - For smokers, the first scanning session will take place before they attempt to quit. This will be a baseline scan. The second scanning session will take place 48 hours after having their last real cigarette. After this scan, they will use electronic cigarettes to help quit their habit. - After using e-cigarettes for two weeks, smokers will have a third scan session.. They will then gradually taper their use of the electronic cigarettes over the course of three weeks, at which point they will be nicotine abstinent. - After about 5 weeks of abstinence, they will have the fourth scan. The fifth scan will be approximately 6 months after start of the study, and the final scan will take place at about 1 year from the study start. - Smokers will continue to receive support on quitting smoking until the study ends at about 1 year.
The purpose of this study is to determine whether electronic cigarettes can reduce reactivity to smoking-related cues.
As an add-on treatment to behavioural therapy for tobacco dependence, anodal transcranial direct current stimulation (tDCS) significantly increases the cessation rate compared to treatment with sham tDCS; endpoint analysis will be performed 1, 3, 6 and 12 months after completion of the smoke-free programme in combination with tDCS. Craving, assessed with a visual analog scale (VAS), is reduced significantly in the verum treatment group compared to the sham tDCS group. tDCS is suitable for use in larger groups (8-12 people).
The purpose of this study is to evaluate the effectiveness of a combined parent-student program for smoking prevention in 7th graders in Berlin schools.
Background: - Drugs of abuse have effects on mood, behavior, thinking, and decision making that may encourage people to continue using them and make it difficult for them to stop. Researchers who study these effects are interested in developing new tests to evaluate how drugs and drug use affect different areas of the brain. - Magnetic resonance imaging (MRI) scans allow researchers to study brain activity and changes to brain function. When specific psychological tests are performed during functional MRI (fMRI) scans, researchers can examine the effects of drug use on the brain. By developing and testing new procedures for fMRI studies, more information can be obtained on brain function and activity in drug-using and non-drug-using individuals, and this information can help develop new treatments and therapies for substance abuse. Objectives: - To evaluate the effects of newly developed psychological procedures to be performed during fMRI scans. Eligibility: - Healthy volunteers between 13 and 65 years of age who are willing to undergo MRI scanning. - Both drug-using and non-drug-using individuals will be selected for this study. Design: - Before the start of the study, participants will complete questionnaires about medical and psychological history, and provide information about past or current drug use. Researchers will introduce the tasks to be performed during the scanning session(s), and will allow participants to practice the test either on a separate computer or on the computer used during the MRI scan. - During the study, participants will be asked to do one or more tasks selected by the researchers. The tasks will be performed on a computer in an MRI machine, and may involve receiving rewards (such as money or sips of juice) for actions, memory and reaction-time tests, or other tests that involve responding to instructions on the screen. - Participants will receive compensation for their participation in the study, including hourly compensation for individual visits and lump-sum compensation for each MRI scan....
Background: - Functional and structural magnetic resonance imaging (MRI) techniques have allowed researchers to map and study how the brain works when at rest and when engaged in specific tasks. MRI scans have provided more information about how drugs affect the brain, and about how drug addiction changes the brain and influences behavior, mood, and thinking processes. To better understand the underlying mechanism of drug addiction and to develop strategies for more effective treatment, researchers are interested in developing new MRI techniques to study the effects of addiction on the brain. Objectives: - To develop new functional and structural MRI techniques, and to evaluate their potential use in brain imaging studies related to addiction. Eligibility: - Individuals between 18 and 80 years of age. - Participants may be smokers or nonsmokers, and may use drugs or not use drugs. Design: - During the initial screening, participants will complete questionnaires about family and personal history, drug use, and other information as required by the researchers. Participants who will be asked to complete tasks during the MRI scan will be shown how to perform these tasks before the scanning session. - Before each study session, participants may be asked to complete some or all of the following: questions about their drug use during the last week, a breathalyzer test, a urine drug-use assessment, a urine pregnancy test, or a measure of carbon monoxide. Participants will also provide blood samples before the start of the scan. - For each scanning session, participants will have an MRI scan that will last approximately 2 hours. - MRI scans may include specific tasks to be performed during the scan, or an experiment that studies the brain's response to carbon dioxide.