Pharmacogenetic Study of Ondansetron in Alcohol Use Disorder
Alcohol Use DisorderThe primary study objective is to determine the efficacy of ondansetron (0.33 mg twice daily) administered orally for a period of 16 weeks in reducing risky drinking among currently drinking subjects with alcohol use disorder who have selected genotypes at the serotonin transporter and receptor genes. The secondary objective is to assess the safety and tolerability of ondansetron in subjects with alcohol use disorder who have selected genotypes at the serotonin transporter and receptor genes.
Internet Based Cognitive Behavior Treatment for Alcohol Problems
Alcohol Use DisordersThe purpose of this study is to determine whether internet based cognitive behavior therapy might be effective in the treatment of alcohol problems.
Effects of Nalmefene After Single Dose on the Blood Oxygen Level Dependent (BOLD) fMRI Signal in...
Alcohol DependenceTo contribute to the understanding of the underlying neurobiological mechanism behind the interaction of alcohol and nalmefene
Safety and Pharmacodynamic Study of GET 73 in Alcohol Dependent
Alcohol DependenceExamination of the effect of GET 73 on alcohol pharmacokinetics and pharmacodynamics (intoxication and sedation)and safety profile in alcohol-dependent individuals.To evaluate whether GET 73, as compared to placebo, results in diminished cue-reactivity responses to alcohol cues in terms of urge to drink during the cue reactivity session and results in lower quantity of alcohol consumed during an alcohol self-administration session.
Examination of Zinc, S-adenosylmethionine, and Combination Therapy Versus Placebo in Alcoholics...
AlcoholismThis is a randomized, placebo controlled trial of dietary zinc and S-adenosylmethionine (SAMe) in otherwise healthy alcoholic US Veterans. The primary goal is to determine if either dietary zinc or S-adenosylmethionine (SAMe) can augment lung immune defenses in alcoholics and thereby decrease the risk of lung injury and infection.
Integrating Combined Therapies for Persons With Co-occurring Disorders
Alcohol Use DisorderMental Health DisorderThe purpose of this study is to assess the effectiveness and implementability of ICT for co-occurring alcohol use and mental health disorders within community addiction treatment, as delivered by routine community addiction clinicians.
Effects of Acute Exercise on Various Parameters in Individuals With Alcohol Use Disorders
Heavy DrinkingAlcohol Abuse2 moreThe purpose of this research is to examine the effects of exercise of different intensities on psychological, physiological, biochemical, physiological and alcohol-related parameters in individuals with alcohol use disorders (heavy drinkers and alcoholic patients) in order to investigate possible biochemical mechanisms by which exercise may be a healthy alternative to alcohol abuse. For that purpose, a control group of individuals that do not exceed the limits for moderate alcohol use will be included.
Internet Based Cognitive Behavior Treatment for Alcohol Use Disorders
Alcohol Use DisordersThe purpose of this study is to determine whether extensive internet based cognitive behavior treatment program with guidance is a more effective method to treat individuals with alcohol use disorders than a briefer cognitive behavior treatment program without guidance.
Functional Neuroimaging of Alcoholism Vulnerability (PIT)
HealthyThis project compares Family History Positive (FHP) for alcoholism subjects to matched Family History Negative (FHN) subjects derived from the project Principal Investigator's National Institute on Alcohol Abuse and Alcoholism-funded longitudinal study of drinking behavior in a 2000 college freshman population (known as the Brain and Alcohol Research in College Students study (BARCS)). The age of these subjects is a valuable one at which to capture the transition from harmful use to abuse/dependence. This project explores the effects of memantine in a double-blind, randomized, counterbalanced manner on alcoholism risk-relevant tasks. More specifically, this project studies functional MRI tasks related to different aspects of reward and/or impulsivity-related behavior in different contexts, compares the underlying neural circuitry across tasks, and uses a pharmacologic probe of the glutamatergic system to examine NMDA/DA interactions. The combined measures provide the opportunity to advance our understanding of specific aspects of brain function related to familial alcoholism vulnerability in an already well-characterized population as some members evolve into alcohol abuse. In addition to conventional within-task analyses, functional network connectivity and allied approaches will be used to examine brain networks across tasks. The investigators will study adult male and female subjects in equal numbers who are either offspring of an alcoholic parent or are FHN matched controls. The investigators will recruit and assess a total of 84 (42 FHP and 42 matched FHN) subjects between the ages of 18-21 years on initial BARCS contact. The investigators will use 4 cognitive tasks during the functional MRI (fMRI) which include: 1) a Monetary Incentive Delay Task that distinguishes networks engaged in motivational (anticipation) and consummatory (outcome) components of reward processing; 2) a Go/No-Go Task that measures the ability to inhibit response to a pre-potent stimulus; 3) an Alcohol Cue Reactivity Task that examines Nucleus Accumbens response to alcohol-related versus matched soft drink stimuli; and 4) a Pavlovian-to-Instrumental Transfer (PIT) Task that dissects a component of the Monetary Incentive Delay (MID) Task, and provides an imaging assay of a transfer-like process that can be related to real-world drinking behavior, thus informing upon and extending the key findings from CTNA-2.
Cortical rTMS as a Tool to Change Brain Reactivity to Alcohol Cues
Alcohol DependanceThe goal of this investigation is to determine if, in heavy alcohol users, a single session of transcranial magnetic brain stimulation (TMS) over a brain region involved in craving (medial prefrontal cortex) and a brain region involved in cogntive control (dorsolateral prefrontal cortex) can lower an individual's craving and brain response to alcohol cues. This study involves a screening visit, followed by three visits which involve brain imaging (using functional MRI) and brain stimulation (using TMS). There is also an additional Magnetic resonance spectroscopy (MRS) exploratory Aim in which we will measure the concentration of glutamate in the prefrontal cortex before and after a session of TMS.