Clinical Research Directory

Cognitive Task Development and Implementation for Functional MRI Studies

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 develop, assess and refine of cognitive and affective tasks and determination of their practical feasibility and efficacy for both MRI and non-MRI application. Eligibility: * Healthy volunteers between 18 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 may complete as assessment of medical and psychological history, and provide information about past or current drug use. Researchers will introduce the tasks to be performed and may have participants practice the tasks. * During the study, participants will be asked to do one or more tasks selected by the researchers. The tasks may 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....

Developing Field Tools for Real-Time Assessment of Exposure to Psychosocial Stress and Drug Use in an Outpatient Treatment Population

Background: \- Researchers are interested in developing more accurate methods to assess environmental influences on psychological stress and drug use. One key to a more accurate assessment of environmental influences is minimizing the delay between exposure and reporting. Portable devices such as personal digital assistants (PDAs) and global positioning system (GPS) units may be able to provide a more real-time image of these factors. Objectives: \- To assess the use of PDAs to measure stress and drug use, and GPS units to assess the effects of neighborhood environment in an outpatient treatment population. Eligibility: * Individuals from 18 to 75 years of age who are current heroin users seeking treatment for addiction and who spend most of their time in Baltimore city. * Participants must be able to visit the research and treatment center at least three times per week for regular tests. Design: * Participants will be in the study for approximately 28 weeks (7 months). * A series of three laboratory session examining responsiveness to standardized stressors will occur both early in treatment and will be repeated late in treatment. * Participants will undergo 18 weeks of daily methadone maintenance. Urine samples will be collected three times weekly. * To track drug use, stress, and geographical location (a measure of environmental risk), each participant will carry a PDA and a GPS unit for 16 of the 18 weeks. Participants will make entries (1) each time that they use a drug and (2) each time they feel overwhelmed, anxious, or stressed more than usual. Participants will also make three random-signal-triggered recordings per day and one brief (end of day) recording. * Retrospective self-report questionnaires on drug use and stress will be given regularly. * After 18 weeks of methadone maintenance, participants will discontinue carrying the PDA and GPS unit and will have the choice of transferring to a community clinic or undergoing a 10-week taper from methadone at the research clinic. Participants who stay for the taper will continue to provide urine samples, but only once a week.

Harm Reduction Intervention for Anabolic-androgenic Steroids Users: a Randomized Controlled Trial

This clinical trial aims to investigate the short and long-term efficacy of a harm reduction intervention in reducing the use of non-clinical anabolic-androgenic steroids (AAS) in abusive users of AAS. As secondary objectives, the study will investigate the intervention's effect on health parameters (i.e., blood), quality of life, sleep quality, body image, eating behavior, depression, anxiety, fatigue, aggressiveness, cardiovascular parameters, muscle strength, body composition and muscle cross-sectional area outcomes.

Advanced Functional and Structural MRI Techniques for Neuropharmacological Imaging

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....

Evaluation of Oral THC and CBD in Men and Women

The purpose of this study is to determine the pharmacokinetics and pharmacodynamics of oral delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) and to evaluate detection of recently smoked THC in oral fluid.

OUD Smartphone Services

The purpose of the research is to check whether services and materials made available through a smartphone app are helpful to people who have been diagnosed with opioid use disorder (OUD). Participants are asked to use an app to submit videos of themselves taking salivary drug tests to a secure online system. The app includes reminders, rewards, and activities, as well as access to live support. Study participation lasts one year and includes about 30 minutes each week submitting videos, an hour-long interview to get started, and hour-long interviews once every three months after that over the course of the year.

Suicidal Behavior in Patients Diagnosed With Bipolar Disorder

The purpose of this study is to learn the environmental and psychological factors that impact suicidality in patients diagnosed with Bipolar Disorder. Additionally, the study aims to identify treatments to reduce the suicidal behavior and improve quality of life through a 6-week group-based intervention program.

Factors Predicting Outcome in Group Treatment of Alcohol Use Disorders (AUDs)

Harmful alcohol use is a global risk factor for disease, injuries and death. Research on treatment of Alcohol use disorders (AUDs) indicates that different treatment modalities are equally effective, but also that a large group of patients do not change their drinking pattern despite being in treatment. It is assumed that it is not random who benefits from treatment. Thirty to forty percent of outcome variance in treatment is probably explained by patient factors, and we need more knowledge on how different patient factors moderate treatment effects. Further, clinicians also need more knowledge about selecting patients to different therapies. The present study will investigate how patient factors predict outcome in group treatment of AUDs, and what predicts positive treatment outcomes over time. The study is designed as a quasi-experimental, multi-centre, follow-up study. Patients will be included from Vestfold Hospital Trust, Borgestadklinikken, Blue Cross Clinic, Behandlingssenteret Eina, Blue Cross Clinic and A-senteret, Oslo, Church City Mission. The Project will provide more knowledge about patients seeking treatment for AUDs, and specifically how patient factors predict outcome in group treatment. These results will in turn lead to better selection of treatment modalities, and patients will receive a more effective treatment earlier on. Main aims: 1) How do patient factors predict outcome in group treatment of alcohol use disorders (AUDs)? 2) Do positive treatment outcomes last over time? Specifically, do the following factors: a) psychiatric comorbidity b) severity of alcohol use pre-treatment c) personality disorders and d) cognitive impairments predict 1) completion of group treatment and 2) positive outcome after 1 year. As an additional aim, we will investigate if the Montreal Cognitive Assessment test (MoCa) is feasible as a brief screening instrument for mild cognitive impairments for AUD patients.

Structured Physical Exercise in Short-term Inpatient Treatment of Substance Use Disorder

In 2017, structured physical exercise with high intensity was implemented as a part of the treatment program at St. Olav Hospital Clinic of Substance Use and Addiction Medicine. The objective of this study is to examine whether implementing structured physical exercise in the treatment program has implications for patients' physical and mental health and quality of life after completing a 3 month residential treatment program. The results of this study will benefit substance use disorder patients in the future, and may have an impact on further implementation of physical exercise in addiction treatment clinics both nationally and internationally.

Peer-led Personalized Support Program

Aim: To test the effectiveness of a peer-led personalized support program using instant messaging applications and a self- determination theory-based intervention to help young drug abusers quit drugs. Hypothesis to be tested: The investigators hypothesize that compared with those in the control group, the participants in the intervention group will experience greater success in reducing and quitting drugs and will have a better health-related quality of life at 12 months follow-up.

AA on Drug Abusers by Nursing Students

Drug abuse is a serious public health issue. Despite the serious consequences of drug abuse, there are around 2000 new cases reported by drug abusers each year. There is growing evidence of the use of auricular acupressure (AA), a traditional Chinese medicine (TCM) treatment modality, in reducing withdrawal symptoms among drug abusers. This study aims to investigate the feasibility and effectiveness of training nursing students to deliver brief education on AA on drug abusers.

Team-based Learning Intervention to Prevent Risk Factors for Chronic Diseases - a Cluster Randomized Trial

Background: Chronic diseases, such as cardiovascular diseases, diabetes, and cancer, are a major global health issue. Their modifiable risk factors, including poor diet, physical inactivity, irregular sleep, tobacco use, and excessive alcohol consumption, often emerge during adolescence and persist into adulthood. Early educational interventions can promote healthy habits and reduce their prevalence. Team-Based Learning (TBL), an active teaching method, has demonstrated effectiveness in improving knowledge and behaviors essential for a healthy lifestyle. Objective: evaluate whether a TBL-based educational intervention can improve adolescents' knowledge and habits related to chronic disease risk factors. Methods: A cluster randomized controlled trial (cRCT) will be conducted in public schools in Palmares, Brazil, targeting high school students aged 15-19 years. Fourteen schools will be randomly assigned to intervention and control groups. The intervention, consisting of four TBL modules, will cover healthy eating, physical activity, screen time, sleep, tobacco, and alcohol use, delivered by graduate nursing students under faculty supervision. Data collection will take place at three time points: pre-intervention, post-intervention, and three months later. The control group will continue receiving standard health education. Primary outcomes will assess behavioral changes, while secondary outcomes will analyze body mass index (BMI) and blood pressure. Analysis: Data will be analyzed using SPSS, with descriptive statistics, paired and unpaired t-tests, ANOVA, and chi-square tests. The analysis will account for clustering and be conducted using intention-to-treat analysis. Statistical significance will be set at p\<0.05. Conclusion: The study will provide evidence on TBL as a scalable tool for preventing risk factors in adolescents, contributing to long-term public health benefits.

Wakaya: Rising Up for Choctaw Youth Health

Investigators will conduct a two-group randomized waitlist-control trial to assess the efficacy of the Wakaya: Rising Up for Choctaw Youth Health program on improving physical activity, reducing sedentary behaviors and improving healthful eating habits as well as delaying or reducing alcohol, tobacco and other drug use. Wakaya is an experiential, outdoor, nature-based program grounded in Choctaw values. It is a multi-level intervention that increases individual motivation and leadership skills to make healthy behavioral choices for behavior and exercise.

Neurobiological Effects of Transcranial Direct Current Stimulation Treatment in Alcohol Use Disorder

Background: Alcohol Use Disorder (AUD) is a complex psychiatric disorder, involving several brain areas and neurocircuits. Transcranial Direct Current Stimulation (tDCS) allows to stimulate superficial areas of brain using a weak electrical current. Preliminary data suggest that tDCS may reduce alcohol craving and consumption. Objectives: The main outcome is to test if tDCS can reduce alcohol craving and use and to assess the changes in BDNF and pro-BDNF levels. Secondary outcomes are the assessment of other psychiatric dimensions (mood, behavioral and cognitive alterations) associated with prolonged alcohol use. Eligibility: Healthy, right-handed adults ages 18-65 who do have AUD (moderate to severe). Design: This is a randomized, double-blind, sham-controlled study with three phases: 1) a tDCS intensive treatment phase; 2) follow-up with weekly tDCS stimulation; 3) follow-up without tDCS stimulation. Participants will be screened with: * Psychometric Scales * Medical history * Physical exam * Urine tests and breathalyzer * After being enrolled, baseline behavioral and laboratory data will be collected. In particular, participants will undergo: * Psychometric Scales * Venous blood sample (BDNF/proBDNF levels) Participants will be randomized to real or sham tDCS arm. The stimulation will be delivered daily for five days during the first week (intensive treatment phase) and then weekly for 3 months (follow-up with stimulation). During this period patient will be tested with a behavioral and psychometric evaluation.Therefore, participants will receive 3 follow-up monthly visits without tDCS stimulation, in which behavioral and psychometric data will be collected. Treatment includes: * tDCS: The tDCS will be delivered with a stimulator connected to two sponge electrodes, soaked in a saline solution. The stimulation will be administered at a current intensity of approximately 1 mA, for the duration of 20 minutes. The anode will be placed on the right DLPFC, the cathode on the contralateral cortical area. * BDNF/proBDNF levels: A venous blood sample will be collected before the first stimulation and after the last stimulation of the intensive-stimulation period (first week). The blood sample will be centrifuged within 20 minutes of sampling at 1000 × g for 15 minutes. Then, the serum will be aliquoted and stored at -80 ° C until analysis. * Repeat of screening tests and questionnaires * Urine toxicological screen and breathalyzer