Naltrexone Hydrochloride

The study will compare alcohol use in two groups of subjects. One group will be assigned to the Deep TMS treatment and the other group will be assigned to the sham treatment. This is a prospective, 6-month, double blind, randomized, controlled, multi-center trial in outpatients recruited in both academic and private research centers. The study population will consist of subjects diagnosed with moderate to severe AUD. The study is comprised of three phases: 1. Pre-study Screening and Baseline Phase 2. Acute Treatment Phase and 3. Maintenance Treatment and Follow up Phase Subjects of all ethnic and gender categories, ages ranging between 18-86 years will be screened for study eligibility according to the inclusion and exclusion criteria. Subjects who meet the eligibility criteria and are willing to sign an informed consent form will be enrolled in the study. The subjects' demographic and baseline characteristics, as well as their overall medical condition will be assessed prior to treatment administration. Eligible patients will be randomized with a 1:1 ratio to one of two study groups (treatment or sham) and stratified by site. Randomization will be employed to avoid bias in the assignment of subjects to treatment group. All subjects will undergo the same treatment regimen, regardless of the assigned treatment group. The acute treatment phase will include 15 treatment visits over a period of 3-5 weeks. The Maintenance Treatment \& Follow-up phase will include one treatment visit per week from the end of the Acute Treatment Phase until the 6 month follow-up visit. At each treatment session, prior to stimulation onset, alcohol related cues will be presented to the subject. After the offset of the alcohol cue presentation, active or sham Deep TMS stimulation will be administered. The study design is directed towards a comparison between active treatment and sham, up to 4 months and 6 months follow-up. Efficacy will be assessed using the primary efficacy measure of the percent heavy drinking days during months 2-4, based on the Time Line Follow Back (TLFB) reporting. Additionally, several subject assessment scales will be used during the course of the study to assess alcohol use and alcohol craving. Safety will be assessed, including monitoring the severity, causality and frequency of all adverse events, vital signs, and physical and neurological examination.

Alcohol use disorder (AUD) is a complex chronic brain disease characterized by compulsive alcohol use, loss of control over drinking, and negative emotional states. Extensive research has identified the general neural circuitry underlying AUD. There is an exciting opportunity to intervene in AUD using neuromodulation. Transcranial magnetic stimulation (TMS) offers a non-invasive method to modulate brain activity, making it a promising tool for investigating, modulating, and potentially treating AUD. However, the precise effects of TMS on neural circuits involved in AUD and the mechanisms underlying these effects must first be understood. Magnetoencephalography (MEG) is a neuroimaging method that provides direct measurement of brain activity within neural circuits with high temporal resolution. Critically, MEG can measure brain activity in a wide range of frequencies that are consistent with those targeted by TMS. The goal of this proposal is therefore to collect preliminary and feasibility data to support a future NIH grant application that would use MEG to investigate TMS effects in individuals with AUD (iAUD).

This study will collect data that measures the effects of a psychedelic intervention on patients struggling with alcohol use disorder (AUD). The study design will be a double blind, randomized, active-comparator trial with two study arms. Subjects randomized to Arm 1 (n=40) will receive individual psychotherapy sessions plus a 30 mg dose of psilocybin. Arm 2 subjects (n=40) will receive individual psychotherapy sessions and a 0.75 mg/kg dose of ketamine.

The overall objective of this program of research is to utilize phosphatidylethanol (PEth), a blood-based biomarker that can detect alcohol use for up to 28 days to deliver a feasible telehealth-based 26-week CM intervention. This study will test a telehealth PEth-based CM model in a sample of adults with AUD (n=200), recruited via online platforms by randomizing individuals to six months of 1) an online cognitive behavioral therapy for AUD (CBT4CBT) and telehealth PEth-based CM (CM condition) or 2) CBT4CBT and reinforcers for submitting blood samples (no abstinence required) (control condition). Investigators will assess group differences in PEth-defined abstinence and regular excessive drinking (PEth \>= 200 ng/mL), and alcohol-related harms (e.g., smoking, drug use). This study will address important gaps in CM research by assessing outcomes during a 12-month follow-up, which is much longer than most previous CM studies; using a conceptual model to identify predictors of post-treatment abstinence. Investigators will conduct an economic analysis to place the cost of this model in the context of downstream CM-associated cost-offsets and improvements in personal and public health.

There is growing interest in the utilization of transcranial magnetic stimulation (TMS) as a novel, non-pharmacologic approach to decreasing alcohol use among treatment-seeking individuals with Alcohol Use Disorder (AUD). The results of this study will be used to determine which of the 2 proposed TMS strategies has a larger effect on drinking behavior (% days abstinent, % heavy drinking days) as well as alcohol cue-reactivity in a 4 month period. These data will pave the way for TMS to be used as an innovative, new treatment option for individuals with AUD.

Background: \- Scientists know that alcohol use disorders affect brain structure. They want to know more about the effects of alcohol use disorders on a person s behavior. They want to develop tasks that can be done inside a scanner that can help them better understand these effects in later studies. Objective: \- To develop tasks that investigate a person s behavior that can be used in later studies. Eligibility: * Inpatient participants of another study. They must be physically healthy right-handed adults 18-60 years old. * Healthy right-handed volunteers 18-65 years old. Design: * Participants will be screened with medical history and physical exam. They will have an EKG to record heart activity. They will give blood and urine samples and have a psychiatric interview. * Participants will have between one and three visits. * Participants will be asked about their alcohol drinking to see if they have an alcohol use disorder. * Participants will complete one of three simple computerized tasks either inside the magnetic resonance imagining (MRI) scanner or outside of it. * The MRI scanner takes pictures of the brain. The scanner is a metal cylinder. Participants lie on a table that can slide in and out of the cylinder. They will be in the scanner for about 60 minutes. They may have to lie still for up to 20 minutes. The scanner makes loud knocking noises, but they will get earplugs.