Some research suggests that administration of oxytocin with oxycodone may reduce its abuse liability and improve its ability to reduce pain. In a 6-session laboratory study, the investigators will be evaluating the effects of oxycodone and oxytocin (combined and separately, across sessions) on experimentally-induced pain, subjective effects, decision-making, and activation of different neural substrates.

Type: Interventional

Start Date: Sep 2021

open study

The purpose of this research study is to understand the factors that underlie changes in thinking and memory with increasing age. The investigators will test the usefulness of MRI, PET, and cognitive testing in detecting subtle changes in the brain that precede cognitive decline. An addendum to this study includes additional PET scans to examine the relationship between tau protein in the brain and cognitive decline. Tau is a protein that is known to form tangles in the areas of the brain important for memory, and these tau tangles are a hallmark of Alzheimer's disease. This sub-study research aims to look at the tau accumulation in the brain using an investigational drug called MK-6240, which is a radio tracer that gets injected prior to a positron emission tomography (PET) scan.

Type: Interventional

Start Date: May 2018

open study

Background: - The National Institute of Allergy and Infectious Diseases (NIAID) at the National Institutes of Health needs healthy volunteers for vaccine clinical trials. This is a screening study that is used to identify healthy volunteers who may be eligible to participate in other clinical trials at the Vaccine Research Center that evaluate investigational vaccines, monoclonal antibodies, and injection devices. The VRC conducts studies that will allow researchers to better understand the immune system and how vaccines and monoclonal antibodies work. Objectives: - To screen healthy volunteers for clinical trials at the NIAID VRC. Eligibility: - Healthy people between 18 and 60 years of age. They must be available to take part in clinical trials and be able to provide blood for research studies. Design: - Screening for healthy volunteers to participate in clinical trials is an ongoing process. - Volunteers will be asked about their medical history, including sexual activity and drug use, and a detailed physical exam will be performed. - Blood and urine samples may be collected, and possibly other tests as needed to evaluate the volunteer's health status. - Volunteers will not receive any investigational product in this screening protocol.

Type: Observational

Start Date: Aug 2011

open study

Background: Diet is one of the most modifiable behaviors affecting health. But diet assessment measures that are based on self-report can be inaccurate. Researchers want better ways to address the role of diet in chronic disease. They want to see if stable isotopes can be used to better assess what people eat. Objective: To see if stable isotopes can help scientists identify things people eat. Eligibility: Healthy adults ages 18 to 65 Design: Participants will be screened with a medical history and physical exam. They will have blood and urine tests. These tests will be repeated during the study. Participants will stay in the inpatient unit of the NIH in Phoenix, Arizona, for 13 weeks. For 7 days, participants will eat a diet prepared by the NIH kitchen. They will get balanced meals that are 50% carbohydrates, 20% protein, and 30% fat. Then participants will be randomly placed on one of 3 diets containing different percentages of carbohydrates from soda. Participants height and weight will be measured. The amount of fat and muscle in their body will be measured by body scans that are similar to x-rays. Participants will have oral glucose tolerance tests. They will consume a sugar drink and then give blood samples over 3 hours. Participants will give hair and stool samples. Participants will complete a diet questionnaire. It assesses their food intake over 24 hours. Participants will complete behavioral questionnaires and computer performance tests. Participants will have fat biopsies taken from their stomach and thigh. Participants will have three 24-hour stays in a metabolic chamber. It is used to measure metabolism.

Type: Interventional

Start Date: Feb 2022

open study

Background: A number of diseases can cause a type of lung injury called pulmonary arterial hypertension (PAH). Most people who develop PAH do not survive more than a few years. A new study drug (ZMA001) may help. ZMA001 is a monoclonal antibody. This type of drug consists of proteins, made in a facility, that are very similar to proteins in a human body. But before giving ZMA001 to people sick with PAH, researchers want to find out how the drug affects healthy people. Objective: To test a drug (ZMA001) in healthy volunteers. Eligibility: Healthy adults aged 18 to 60 years. Design: Participants will be screened. They will have a physical exam with blood tests. They will have a urine test for drug use. They will have a test of their heart function. Participants will come to the clinic for 1 inpatient visit of up to 48 hours. ZMA001 is a liquid administered through a tube attached to a needle inserted into a vein in the arm. Participants will receive this drug only once, during their inpatient stay. Some participants will receive the drug; others will receive a placebo in Cohort 1 only. A placebo is a treatment that looks just like the real drug but contains no medicine. Participants will not know which treatment they are getting in Cohort 1. Cohorts 2-4 will receive a single dose of the study drug, administered through a tube attached to a needle inserted into a vein in the arm. After a screening visit, participants will have 1 inpatient visit and up to 8 outpatient visits over 16 weeks after receiving the treatment. Blood draws and other tests will be repeated. Each outpatient visit is approximately 2 hours long. This study is the first time ZMA001 will be administered to people.

Type: Interventional

Start Date: Nov 2023

open study

The goal of this study is to learn if short-term changes in the immune system alter how we process information and experience fear. The main questions it aims to answer are: Do people who receive typhoid vaccine respond differently than those who receive a placebo saline vaccine? Do people who receive typhoid vaccine experience changes in how they think and feel? Participants will: Attend four appointments at the San Francisco VA Health Care System; Receive typhoid vaccine or placebo at one of the visits; Have their physiological responding measured while listening to sounds; Complete questionnaires and psychological tests.

Type: Interventional

Start Date: Mar 2025

open study

This study, at the Western Human Nutrition Research Center (WHNRC), will focus on whether or not achieving and maintaining a healthy body weight is the most important health promoting recommendation of the Dietary Guidelines for Americans (DGA).The investigators hypothesize that improvement in cardiometabolic risk factors resulting from eating a DGA style diet will be greater in people whose energy intake is restricted to result in weight loss compared to those who maintain their weight. The investigators further propose that during a state of energy restriction, a higher nutrient quality diet such as the DGA style diet pattern, will result in greater improvement in cardiometabolic risk factors compared to a typical American diet (TAD) pattern that tends to be lower nutrient quality (more energy-dense and less nutrient-rich.)

Type: Interventional

Start Date: Aug 2022

open study

Huntington's Disease (HD) is an autosomal dominant disease manifested in a triad of cognitive, psychiatric, and motor signs and symptoms. HD is caused by a triplet repeat (CAG)expansion in the gene Huntingtin (HTT). This disease has classically been conceptualized as a neurodegenerative disease. However, recent evidence suggests that abnormal brain development may play an important role in the etiology of HD. Huntingtin (HTT)is expressed during development and through life. In animal studies, the HTT gene has been shown to be vital for brain development. This suggests that a mutant form of HTT (gene-expanded or CAG repeats of 40 and above) would affect normal brain development. In addition, studies in adults who are gene-expanded for HD, but have not yet manifested the illness, (pre-HD subjects) have significant changes in the structure of their brain, even up to 20 years before onset of clinical diagnosis. How far back these changes are evident is unknown. One possibility is that these brain changes are present throughout life, due to changes in brain development,though initially associated with only subtle functional abnormalities. In an effort to better understand the developmental aspects of this brain disease, the current study proposes to evaluate brain structure and function in children, adolescents, and young adults (ages 6-30) who are at risk for developing HD - those who have a parent or grandparent with HD. Brain structure will be evaluating using Magnetic Resonance Imaging (MRI) with quantitative measures of the entire brain, cerebral cortex, as well as white matter integrity via Diffusion Tensor Imaging. Brain function will be assessed by cognitive tests, behavioral assessment, and physical and neurologic evaluation. Subjects that are gene-expanded (GE) will be compared to subjects who are gene non-expanded (GNE). Changes in brain structure and/or function in the GE group compared to the GNE group would lend support to the notion that this disease has an important developmental component.

Type: Observational

Start Date: Jul 2005

open study

Title: Collection of Peripheral Blood Mononuclear Cells (PBMCs) from Healthy People for the Expansion of T Cells for Adoptive Cell Therapy Background: New therapies are being developed that use a person s own immune system to fight tumors. Some of the tumors being studied include cancers caused by viruses. Researchers want to use the healthy cells of volunteers to perform research studies. To do this, they are collecting lymphocytes through leukapheresis. Objectives: To collect healthy cells from volunteers for research studies for new cancer therapies. Eligibility: Healthy people ages 18 and older Design: Participants will be screened with a standard donor questionnaire. It asks about their health and past medical problems. It also asks about risky behaviors that could increase their exposure to viruses or bacteria that could be transmitted through a transfusion. Participants will give a blood sample to make sure they are able to donate. They will have a physical exam. A finger stick test will check their hemoglobin, or red blood cell, level. They might give a urine sample. Participants will undergo apheresis. For this, a needle is placed in a vein in each of their arms. Their blood is taken from one arm. A machine separates the white cells from the red cells and plasma by a spinning process. The white cells are removed and directed into a plastic bag. The red cells and plasma are returned through the needle in the other arm. The entire procedure takes 4 6 hours. Participants may donate every 21 days in this protocol if they choose to. ...

Type: Observational

Start Date: Aug 2016

open study

Phase 1b, open-label study of CLN-978 administered subcutaneously in patients with Moderate to Severe Systemic Lupus Erythematosus (SLE).

Type: Interventional

Start Date: Jan 2025

open study

To evaluate the usefulness of an upper extremity assistive device, called (MyoPro) in improving upper extremity activities in people with incomplete spinal cord injury. The Department of Defense is supporting this study.

Type: Interventional

Start Date: Oct 2023

open study

The goal of this study is to determine whether erectile function is impacted by dietary patterns in healthy men with normal erectile function.

Type: Interventional

Start Date: Oct 2023

open study

One of the principal complicating factors associated with traumatic brain injury (TBI) is sleep-wake disturbances (e.g., insomnia, excessive daytime sleepiness, and circadian rhythm sleep disorders). Morning bright light therapy (MBLT) has been shown to improve sleep quality in a variety of conditions, but little has been done investigating the utility of MBLT in improving sleep in Veterans with TBI. This proposal aims to determine the effect of MBLT on sleep quality in Veterans with TBI. Veterans with and without TBI will be recruited from the VA Portland Health Care System. Baseline questionnaires and 7 days of actigraphy will be collected prior to engaging in 60 minutes of MBLT daily for 4 weeks, during which actigraphy will also be collected continuously. Post-MBLT questionnaire data will be collected, and follow-up questionnaire data will be collected at 3 months post-MBLT.

Type: Interventional

Start Date: Aug 2017

open study

The goal of this observational study is to learn more about how genes impact the risk of kidney disease. Anyone 18 or older living in the US is eligible, and a diagnosis of kidney disease is NOT required. Study participation is online, and it takes about 20 minutes to complete health surveys and request a saliva collection kit sent through US mail. In return, study participants may opt to receive information about their genetic ancestry at no cost.

Type: Observational

Start Date: Nov 2025

open study

The goal of this research is to examine the addition of a digitally delivered social support training approach to an existing digital program designed to promote a physically active lifestyle among self-selected teams of adults who are not meeting physical activity guidelines. The main aims are to: 1. Determine if the social support training intervention promotes significantly greater changes in moderate-to-vigorous intensity aerobic physical activity (such as a brisk walk) as measured by an accelerometer (research grade physical activity measurement device) at 3 months compared to the same intervention without social support training among self-selected teams of adults who are not meeting the physical activity guidelines. 2. Determine if the social support training intervention promotes significantly greater changes in social support, motivation, accountability, and autonomy social support (free from excessive control and encouraging one's free will) at 3 months and 12 months compared to the same intervention without social support training. 3. Determine if the social support training intervention promotes significantly greater changes in moderate-to-vigorous intensity aerobic physical activity as measured by an accelerometer at 12 months compared to the same intervention without social support training. 4. Explore whether social support mediates increased and sustained moderate-to-vigorous intensity aerobic physical activity among the entire sample of participants.

Type: Interventional

Start Date: Aug 2025

open study

This randomized clinical trial (RCT) will investigate novel approaches to enhance effectiveness, engagement, reach, and cost-effectiveness of medically tailored meals (MTM) programs for promoting cardiovascular health, focusing on economically disadvantaged New York City neighborhoods with a disparate burden of multiple cardiometabolic diseases. The main questions the RCT aims to answer are: 1. Does enhancing MTM programs, with culturally relevant cardiovascular health curriculum (including educational sessions on heart health, healthy diet, cooking demonstrations, recipes, gift bags with healthy ingredients and fresh produce, and addressing social needs) enhance program engagement and effectiveness in improving short-term healthy eating behaviors and clinical outcomes (HbA1c and blood pressure) among individuals with type 2 diabetes and elevated to high blood pressure who currently qualify for MTM programs? 2. Is the MTM program coupled with the cardiovascular health curriculum effective for improving healthy eating behaviors and clinical outcomes (HbA1c and blood pressure) among individuals with type 2 diabetes and elevated to high blood pressure who do not currently qualify for MTM programs and is a gradual reduction of MTM dosing an effective and sustainable approach for expanding reach of these programs? To answer question 1, 60 participants with type 2 diabetes and elevated to high blood pressure who currently qualify for MTM programs will be randomized into a group that receives the standard MTM program (10 MTMs/week for 8 months) or a group that receives the standard program plus the cardiovascular health curriculum. To answer question 2, 100 participants with type 2 diabetes and elevated to high blood pressure who do not currently qualify for MTM programs (due to not having advanced disease with complications) will be randomized into a group that receives the standard MTM program (10 MTMs/week for 8 months) plus the cardiovascular health curriculum or a group that receives standard MTM program for the first 3 months followed by a gradual reduction in dosing of the MTMs by 50% over the remaining 5 months plus the CVH curriculum. All participants will have their HbA1c and blood pressure measured and complete questionnaires about their diet quality, health and lifestyle behaviors, and program engagement and implementation at baseline, 3 months, and 8 months.

Type: Interventional

Start Date: Aug 2024

open study

STELLA-R is a multicomponent, self-directed, online intervention designed to facilitate effective management of behavioral and psychological symptoms that are common in many types of dementia. The curriculum instructs care partners to use the ABC approach, a cognitive behavioral technique that teaches care partners to describe a Behavior, then consider the Activators and Consequences of a care recipient behavior. The goal of this intervention is to reduce care partner burden and decrease reactivity to upsetting behaviors.

Type: Interventional

Start Date: Jul 2024

open study

The proposed project aims to test the cognitive and neural effects of a cognitive training in a sample of individuals seeking treatment for anxiety, depression, or traumatic stress symptoms. Participants will be randomly assigned to one of two groups. Group 1 will receive a computer-based program that is designed as a cognitive training intervention and Group 2 will receive a similar computer-based exercise that researchers think will be less effective in training thinking skills (also known as a control or sham condition). Participants will be compared on cognitive performance and brain response during cognitive tasks from baseline to post-treatment.

Type: Interventional

Start Date: Oct 2024

open study

The purpose of this study is to test whether a dietary supplement (low-dose melatonin) commonly used to treat night owls, administered in conjunction with a behavioral sleep intervention, will help to shift the brain clock earlier and improve mood and sleep in bipolar disorder. Eligible participants will be randomized to receive melatonin plus a behavioral sleep intervention or placebo plus a behavioral sleep placebo. The hypotheses for this study include: - Melatonin plus behavioral sleep intervention (compared to placebo plus behavioral sleep placebo) will produce a greater advance of dim light melatonin onset (DLMO), between pre- and post-treatment. - Melatonin (compared to placebo) will produce a greater reduction in Patient Health Questionnaire-9 score between pre- and post-treatment.

Type: Interventional

Start Date: Aug 2024

open study

This study aims to examine the long-term effect of repetitive transcranial magnetic stimulation (rTMS), a non-invasive brain stimulation technique, on chronic headaches following mild traumatic brain injury (mTBI). rTMS has been shown to be effective in reducing chronic headaches without side effects commonly seen in medications, such as sleepiness and addiction. This study uses rTMS to manage chronic headaches to improve post-concussion symptoms and reduce the economic burden due to delayed recovery. This project aims to better identify biomarkers for diagnosis and prognosis and maximize recovery from mTBI.

Type: Interventional

Start Date: Oct 2023

open study

The goal of this study is to evaluate how citicoline, an over-the-counter supplement, versus a placebo pill (i.e., an inactive pill) affects the immune system, brain, and cognition in adolescents who may use alcohol.

Type: Interventional

Start Date: Oct 2024

open study

The reason for this study is to see if lasmiditan is safe and effective in children aged 6 to 17 with migraine. The study will last up to 20 weeks and may include up to 4 visits.

Type: Interventional

Start Date: Jun 2020

open study

The overall objective of the Scleroderma Registry is to support and promote the basic science and clinical research of this complex rheumatic disease at the Hospital for Special Surgery (HSS). The registry facilitates our understanding of the clinical features, pathobiology, genetics of Scleroderma. This will ultimately lead to a potential treatment for this currently untreatable condition.

Type: Observational

Start Date: Aug 2006

open study

Although multiple treatments for OCD exist, slow symptom decrease, high remission, and significant side effects for some OCD patients limit their efficacy. More research into the precise neural mechanisms and linked cognitive functions in OCD is also necessary. To address both concerns, this study by Dr. Reinhart and his team will test a new, non-invasive, and well-tolerated neuromodulation method for reducing OCD symptoms, based on reward-related rhythms of the orbitofrontal cortex (OFC; a brain region responsible for reward, decision making and other crucial functions that is affected by OCD). This proposal is based on highly encouraging preliminary data in both subsyndromal and treatment-resistant populations that shows rapid reductions in OCD behaviors that last at least 1-3 months. Using high-definition transcranial alternating current stimulation (HD-tACS) guided by EEG brain wave recordings, the study will test whether repetitive modulation of relevant rhythm activity in the OFC can lead to rapid (within five days) and sustainable (up to three months) OCD symptom reduction. This research aims to increase knowledge of OCD and development of effective treatment with minimal side effects.

Type: Interventional

Start Date: Jul 2024

open study

This proposed study aims to conduct timely research that promotes vaccine confidence and vaccination of one strongly recommended vaccine with suboptimal uptake rates: Human papillomavirus (HPV) in vulnerable and underserved youth aged 11-14.

Type: Interventional

Start Date: Sep 2025

open study