This study is a mechanistic clinical trial designed to investigate the effects of the circadian system and sleep on non-dipping blood pressure (BP) in people with hypertension (HTN).

Type: Interventional

Start Date: Aug 2022

open study

This is a double-blind, 2-group randomized controlled trial evaluating the effects of topiramate versus placebo in patients with comorbid PTSD and moderate-to-severe AUD. This trial will provide one of the first rigorous tests of whether the effects of topiramate in AUD generalize to patients with co-occurring PTSD, and one of the first rigorous tests of whether topiramate has beneficial effects on PTSD symptoms in this population. It will be the first study to test whether the rs2832407 genotype predicts clinical response to topiramate for AUD and PTSD in patients with both disorders. Further, it will contribute to the understanding of topiramate's mechanisms of action in the co-morbid AUD/PTSD population, and to the discovery of predictors of treatment response.

Type: Interventional

Start Date: Oct 2019

open study

A Multicenter, acute, randomized, double-blind, placebo-controlled, flexible-dose trial with the treatment of sertraline.

Type: Interventional

Start Date: Nov 2019

open study

This study meets the NIH definition of a clinical trial, but is not a treatment study. Instead, the goal of this study is to investigate how hearing ourselves speak affects the planning and execution of speech movements. The study investigates this topic in both typical speakers and in patients with Deep Brain Stimulation (DBS) implants. The main questions it aims to answer are: - Does the way we hear our own speech while talking affect future speech movements? - Can the speech of DBS patients reveal which brain areas are involved in adjusting speech movements? Participants will read words, sentences, or series of random syllables from a computer monitor while their speech is being recorded. For some participants, an electrode cap is also used to record brain activity during these tasks. And for DBS patients, the tasks will be performed with the stimulator ON and with the stimulator OFF.

Type: Interventional

Start Date: Jan 2023

open study

This research study is called 'PRenatal and Obstetric Maternal Exposures and ISlet Autoantibodies in Early Life: The PROMISE Study'. The purpose of this study is to find out more about how exposures during pregnancy, such as having an infection, diet and growth may impact later risk of type 1 diabetes (TID) and islet autoimmunity in the child. We are also interested in finding out more about why having a father or sibling with T1D increases risk of autoimmunity in the child more than having a mother with T1D. We are enrolling women who are pregnant and either have T1D or another first degree relative (father or full sibling) of the baby has T1D. The biological father is also invited to enroll in study, as it is important to understand how the father's health and genetics may contribute to the child's risk of developing T1D. The study procedures for the mother, father and baby are explained below. Mother: Pregnant women will be asked to complete a visit once per trimester (3 visits) during pregnancy and one visit up to 12 weeks after delivery. At each visit, mothers will consent to a blood draw, collection of biological samples and the completion of questionnaires. . Mothers who have T1D will also be asked to download any diabetes device data they have, such as continuous glucose monitor or insulin pump data. Father: The (biological) father will be invited to enroll in a single visit. He will consent to a blood draw and completion of questionnaires. Fathers with T1D will also be asked to download any diabetes device data they have, such as continuous glucose monitor or insulin pump data. Baby: The baby will have blood collected at birth to determine the genetic risk for T1D. Families will consent to the completion of questionnaires about growth, health and diet at 6, 12, 18 and 24 months of age and between 5-7 years of age, and to complete blood testing for islet autoantibodies at 24 months and between 5-7 years of age. For those children with a high genetic risk score, we will also collect blood for autoantibody testing at 6, 12, and 18 months of age.

Type: Observational

Start Date: Dec 2022

open study

This study aims to better understand how people with Parkinson's control reaching movements. Specifically, we are asking how these individuals respond to different environmental perturbations. Testing includes reaching movements made within a virtual reality set-up.

Type: Interventional

Start Date: Dec 2018

open study

Background: People with sickle cell disease (SCD) have problems with their heart, brain, kidneys, liver, and lungs as they age. These problems may improve after transplant. Researchers want to learn how and why this happens. Objective: To study the benefits of treatments that are intended to cure SCD. Eligibility: People aged 18 and older with SCD who are either receiving curative therapy in the next 3 months or don t have any plans to receive a curative therapy in the next 2 years. Design: At their first visit, participants will be screened with their medical history and a physical exam. Participants will then have a baseline visit. This will take about a week to complete and will include: Blood and heart tests MRI of the brain, heart, and lungs. Participants will lie on a bed that will move into the MRI scanner. Special padding may be placed around their head to keep it still. Interactive games. Participants will complete computer games that test memory, attention, problem solving, language, spatial orientation, processing speed, and emotion. Questionnaire rating quality of life Iothalamate test. An IV catheter will be placed into a vein. A contrast agent will be injected through the IV. Blood will then be collected at different time points. Lung function tests and a 6-minute walk test Vibration controlled transient elastography. A probe placed on the abdomen will measure liver scarring. DOS test. A light attached to the finger or toe will measure blood oxygen. Participants will have an end-of-study visit about 2 years after their baseline visit. This will include repeats of the baseline visit tests.

Type: Observational

Start Date: Mar 2022

open study

The purpose of this study is to establish differences in the primary outcome of walking dysfunction using the 12-Item Multiple Sclerosis Walking Scale (MSWS-12) and to establish differences in the secondary outcome of HRQoL using the 29-Item Multiple Sclerosis Walking Scale (MSWS-29) between the exercise training intervention condition and the waitlist control condition following the 16-week intervention period.

Type: Interventional

Start Date: Sep 2026

open study

The purpose of this study is to research the effects of partial sleep deprivation (sleep restriction) in a group of individuals whose parents have high blood pressure compared to a group of individuals whose parents have normal blood pressure.

Type: Interventional

Start Date: Feb 2025

open study

The investigators will recruit individuals with broadly-defined AN (n = 80) who are currently in or have recently participated in higher-level eating disorder treatment (e.g., residential, partial hospitalization/day treatment, intensive outpatient treatment). Interested participants will sign consent, complete eligibility assessments, and will be randomized to receive Positive Affect Treatment for Anorexia Nervosa (PAT-AN) or Psychoeducation and Behavioral Therapy (PBT) through teletherapy shortly following discharge from higher level of care. Participants can participate in most other forms of outpatient treatment while receiving the research intervention. Participants will engage in 24 weeks of PAT-AN or PBT starting in the first 3 months post-discharge. At each session, the investigators will complete brief measures assessing treatment acceptability, affect, and eating disorder symptoms. Participants will also complete an assessment battery of self-report, EMA, and neurocognitive measures evaluating primary outcomes (BMI; eating disorder symptoms), secondary outcomes (depression, anxiety, and suicidality), and presumed treatment mechanisms at baseline, end of treatment (EOT), and 3-month follow-up (FU). All assessments will be remotely delivered via HIPAA-compliant platforms.

Type: Interventional

Start Date: Dec 2023

open study

The prevalence of autonomic dysfunction and sleep disordered breathing (SDB) is increased in individuals with spinal cord injury (SCI). The loss of autonomic control results in autonomic dysreflexia (AD) and orthostatic hypotension (OH) which explains the increase in cardiovascular related mortality in these Veterans. There is no effective prophylaxis for autonomic dysfunction. The lack of prophylactic treatment for autonomic dysfunction, and no best clinical practices for SDB in SCI, are significant health concerns for Veterans with SCI. Therefore, the investigators will investigate the effectiveness of mild intermittent hypoxia (MIH) as a prophylactic for autonomic dysfunction in patients with SCI. The investigators propose that MIH targets several mechanisms associated with autonomic control and the co-morbidities associated with SDB. Specifically, exposure to MIH will promote restoration of homeostatic BP control, which would be beneficial to participation in daily activities and independence in those with SCI.

Type: Interventional

Start Date: Oct 2022

open study

The present study will evaluate the effects of both aging and nicotine on psychophysical tasks and electrophysiological measures. Nicotine will be administered to study participants in the form of gum that is available as an over-the-counter medication. The hypothesis is that nicotine will reverse the detrimental effects of aging on auditory processing. The proposed experiments will characterize the effects of nicotine and may eventually lead to improved treatments of hearing loss in a variety of patient populations and in healthy aging.

Type: Interventional

Start Date: Feb 2022

open study

The purpose of this study is to test the safety and efficacy of BHV-3000 versus placebo in the acute treatment of moderate or severe migraine in children and adolescents.

Type: Interventional

Start Date: Jan 2021

open study

Background: Interstitial lung disease affects the tissues that aid the transfer of oxygen and carbon dioxide between the air and the bloodstream. The disease can cause fibrosis, a thickening and scarring of lung tissue. Fibrosis often continues getting worse, and most people with this disease die in 3 to 5 years. Objective: To test a study drug (hymecromone) in people with interstitial lung disease or lung fibrosis. Eligibility: People aged 18 years and older with interstitial lung disease or lung fibrosis. Design: Participants will have at least 7 clinic visits over 5 months. Participants will have screening and baseline visits. They will have blood tests and tests of their heart function. They will give a sputum sample. Other tests will include: Spirometry: Participants will breathe in and out through a mouthpiece to measure how much air they can hold in their lungs and how hard they can breathe. Diffusion capacity of lungs for carbon monoxide: Participants will breathe in a gas that contains a small amount of carbon monoxide. Then they will breathe through a mouthpiece. This test measures how well oxygen moves from the air into the blood. Resting energy expenditure. Participants will lie still for 30 minutes with a clear dome over their head. This test measures the calories their body burns at rest. 6-minute walk test. Participants will walk at their normal pace for 6 minutes. Their vital signs and blood oxygen levels will be checked. Hymecromone is a tablet taken by mouth. Participants will take 2 tablets every morning and 2 tablets every night for 12 weeks. Participants who decide to continue longer may enter an optional 12 week extension phase, for a maximum treatment time of 24 weeks. Tests will be repeated at study visits.

Type: Interventional

Start Date: May 2025

open study

Background: Sjogren disease is an autoimmune disease - that is, a disease that causes the body's immune system to attack its own organs and tissues. Sjogren disease can affect the kidneys, lungs, or other organs. It can also cause dry mouth and eyes, fever, joint pain, rashes, and other symptoms. Researchers want to know if a drug approved to treat rheumatoid arthritis and other autoimmune diseases can help people with Sjogren disease. Objective: To test a drug (tofacitinib) in people with Sjogren disease. Eligibility: People aged 18 to 75 years with Sjogren disease. They must be enrolled in protocol 15-D-0051. Design: - Participants will be screened. They will have a physical exam with blood and urine tests. They will give samples of saliva; a small sample of tissue will be taken from a salivary gland. They will have a test of their heart function. They will have an eye exam, including a test for dry eyes. - Tofacitinib is a tablet taken by mouth. Participants will take the drug twice a day at home. - Participants will have 9 clinic visits over 28 weeks. Each visit will take up to 5 hours. In addition to repeated tests, they will have tests of the speed and pressure of blood flow through their body. They will complete health questionnaires throughout the study. - Participants will also have 5 phone visits during the study. They will review their health and study treatments. - They will have 1 final visit after they stop taking the drug.

Type: Interventional

Start Date: Dec 2025

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

The purpose of this study is to evaluate how well MER511 is tolerated and what side effects may occur in adults who have Graves' disease. The study drug will be administered either intravenously (into a vein in the arm) or subcutaneously (under the skin). Blood tests will be performed to investigate how the body processes the study drug and how the study drug affects the body.

Type: Interventional

Start Date: Dec 2025

open study

The purpose of this study is to optimize an automated digital chatbot intervention for adults with clinical or subclinical eating disorders.

Type: Interventional

Start Date: Jul 2026

open study

The purpose of this study is to know how well seltorexant works, and also to evaluate safety and maintenance effect of seltorexant compared with placebo as an adjunctive therapy to an antidepressant in improving depressive symptoms in participants with major depressive disorder with insomnia symptoms (MDDIS) who have had an inadequate response to current antidepressant therapy with a selective serotonin reuptake inhibitor (SSRI) or serotonin-norepinephrine reuptake inhibitor (SNRI).

Type: Interventional

Start Date: Jul 2024

open study

The purpose of this study is to find out how the language of people with Primary Progressive Aphasia is affected by Propranolol. Propranolol is not FDA approved for the treatment of Primary Progressive Aphasia. Propranolol is FDA approved for the treatment of heart conditions such as blood pressure. This research is being done because there are currently no drug treatment options for language impairments and anxiety often experienced by people with Primary Progressive Aphasia.

Type: Interventional

Start Date: Jan 2025

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 is a hybrid type III implementation-effectiveness trial; this study design blends elements of implementation and clinical effectiveness research, with the primary aim of determining the utility of an implementation strategy and a secondary aim of assessing clinical outcomes associated with the implementation trial. Consistent with best practices for this type of design, the study team will conduct a randomized test of the effect of implementation strategy on effective delivery of the Online EmReg intervention in clinical practice. Specifically, the study team will compare Standard Training (a 3-hour on-demand training workshop) to Extended Training, (a 3-hour on-demand training workshop with 3 months of bi-weekly consultation). The research team's primary aim is to determine the optimal strategy to train clinicians in effectively delivering Online EmReg, and secondary aim is to assess patient improvement per clinician-administered DERS. Outcome measures will be assessed via self-report surveys, performance evaluations (via role-plays), and tracked clinician participation and fidelity. Study participation is expected to last up to 18 months.

Type: Interventional

Start Date: Jul 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

Black individuals are more likely to have decreased insulin sensitivity which results in a high risk for the development of cardiometabolic disease. The reasons for this are incompletely understood. Natriuretic peptides (NPs) are hormones produced by the heart that play a role in regulating the metabolic health of an individual. Low circulating level of NPs is an important contributor to increased risk for diabetes. The NP levels are relatively lower among Black individuals thus affecting their metabolic health and putting them at a higher risk for diabetes. This study aims to test the hypothesis that by augmenting NP levels using sacubitril/valsartan, among Black Individuals one can improve their metabolic health (as measured by insulin sensitivity & energy expenditure) and help establish the role of NPs in the underlying mechanism behind increased risk for cardiometabolic disease in these population.

Type: Interventional

Start Date: Aug 2020

open study

Background: Researchers developed [11C]MC1, a radioligand for cyclooxygenase-2 (COX-2). COX-2 is an enzyme induced in the brain during inflammation. Researchers want to see the levels of COX-1 (measured as distribution volume VT) are elevated in the brain of two groups of mood disorders patients undergoing MDE relative to the control group. Objective: To determine whether COX-1 and COX-2 are detectable in the brains of individuals with MDD experiencing a major depressive episode (MDE). Eligibility: People aged 18-70 years with MDD and Healthy Volunteers aged 18 70 years. Design: Group A: MDD participants will be studied with the same dose of [11C]MC1 before and after administration of 600 mg celecoxib; the study is neither randomized nor placebo-controlled. Group B: MDD participants, both medicated and unmedicated, will be studied with [11C]PS13 and compared to healthy volunteers.. https://nimhcontent.nimh.nih.gov/start/surveys/?s=TJW4RA4WN3LDD988

Type: Interventional

Start Date: Jul 2021

open study