This study evaluates the effects of probiotic consumption on inflammatory outcomes and measures of gut health. Participants will be given yogurt with probiotics for one period and yogurt without probiotics for another, with a break in between. These periods will occur in random order.

Type: Interventional

Start Date: Jun 2018

open study

Background: Clonal Hematopoiesis of Indeterminate Potential (CHIP) is a change in a person s DNA that can increase a person s risk of developing blood cancers or cardiovascular disease. CHIP occurs mostly occurs in older people. Clonal cytopenia of undetermined significance (CCUS) occurs when one or more blood cell types is lower than it should be and is associated with a change in their DNA. Researchers want to learn more about how CHIP and CCUS progress. Objective: To examine the natural history of people in a study of CHIP and CCUS to (1) verify the association of myeloid somatic mutations with atherosclerosis and blood cancers, and (2) find new potential clinical associations. Eligibility: Adults 18 and older with CHIP with a somatic pathogenic variant associated with blood cancers. Adults with CCUS are also needed. Design: Potential participants will be screened with gene testing. For this, they will give a blood sample. They will also be enrolled in NHLBI screening protocol #97-H-0041. Those who pass this screening will visit the NIH Clinical Center for more screening tests. For this, they will give a blood sample. They will have a physical exam. They will give their medical history. They may give a urine sample. Those with CCUS will have bone marrow taken. Eligible participants will give blood and urine samples. Their heart activity will be monitored and tested. The arteries in their neck will be assessed using ultrasound. They will have liver and heart scans. They will have a bone mineral density scan. They will have lung function tests. They will have the inside of their cheek swabbed or have a skin punch biopsy. They will have the option to have advanced scans done of their heart and full body but this is not required. Participants will have yearly follow-up visits for 10 years. They will repeat the above procedures every 1-3 years depending on the procedure.

Type: Observational

Start Date: Mar 2020

open study

Background: Brown adipose tissue (BAT) is a type of fat in the body. It may prevent weight gain, improve insulin sensitivity, and reduce fatty liver. Researchers want to see if BAT helps the body burn energy. Objective: To learn more about how BAT works to burn energy. Eligibility: People ages 18-40 with a body mass index between 18 and 40 Design: Participants will be screened with: Medical history Physical exam Blood, urine, and heart tests Dietitian interview Participants will have an overnight baseline visit. This includes: Repeats of screening tests Exercise test Scans. For one scan, a radioactive substance is injected into the arm. FSIVGIT: An IV is inserted into veins in the right and left arms. Glucose and insulin are injected in one arm. Blood glucose and insulin levels are measured from the other. Metabolic suite: Participants stay 18-19 hours in a room that measures their metabolic rate. Monitors on the body measure heart rate, movement, and temperature. Optional fat biopsy: A small piece of tissue is removed with a needle. Participants will take 2-4 pills daily for 4 weeks. All women will take the drug mirabegron. Men will be randomly get either the drug or a placebo. All participants will have a visit after 2 weeks of the pills. They will repeat the screening tests. Participants will have an overnight visit 2 weeks later. They will repeat the baseline tests. Participants will keep food and medication diaries. Participants will have a follow-up visit 2 weeks after stopping the pills. This includes heart tests. ...

Type: Interventional

Start Date: Mar 2017

open study

The purpose of this clinical trial is to see whether the Healthy Minds Program (HMP) is practical to use, well-received, and shows early signs of helping people who have recently experienced suicidal thoughts or behaviors. Participants will: - complete questionnaires - use HMP app for 4 weeks

Type: Interventional

Start Date: Apr 2026

open study

The purpose of the study is to develop a new quit-smoking treatment among individuals with a cancer diagnosis using a smartphone app.

Type: Interventional

Start Date: Jan 2026

open study

The goal of this observational study is to learn more about how genes impact the risk of breast cancer. Anyone 18 or older living in the US is eligible, and a diagnosis of cancer 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: Apr 2024

open study

The purpose of this study is to evaluate the efficacy, safety and tolerability of rapcabtagene autoleucel (administered once following lymphodepletion) in participants with severe refractory diffuse cutaneous systemic sclerosis relative to rituximab.

Type: Interventional

Start Date: Oct 2024

open study

Emerging adulthood (18-25 years of age) is a critical developmental window to promote weight management and cardiometabolic health, particularly for emerging adult women. The primary purpose of this study is to test the preliminary efficacy of the intensive lifestyle intervention for EA women in reducing adiposity, as well as improving biomarkers of inflammation and metabolic risk over 12 months compared with a traditional behavioral weight loss intervention. This treatment program will be tested in emerging adult (EA) women ages 18-25 years old with a BMI of 25-50 kg/m^2.

Type: Interventional

Start Date: Sep 2025

open study

This study is a 3-group, parallel design, randomized controlled trial (RCT) in approximately 258 adults with obesity that will investigate whether a 16-week behavioral weight loss treatment and a 52-week stepped-care digital health intervention can improve the maintenance of a ≥ 5% weight loss. 16-week run-in (Phase 1). To qualify for randomization, participants must lose ≥ 5% of initial weight in the 16-week run-in. This loss will be achieved with the provision of weekly-group lifestyle counseling, which includes a partial meal replacement diet. 52-week randomized trial of 3 weight loss maintenance strategies (Phase 2): Participants who have achieved ≥ 5% weight loss during Phase 1 will be randomly assigned to 1 of 3 groups: 1. Participants in the Usual Care group will be emailed monthly educational modules with information on maintaining weight loss. 2. Participants in the SELF group will receive a wireless "smart" body weight scale and a wearable physical activity tracker, and daily text messages with tailored feedback to assist in weight loss maintenance. 3. Participants in the STEP group will be enrolled in an intervention that consists of 4 steps that are progressive and based on response to treatment. After 13 weeks at each step, participants who do not maintain a ≥5% weight loss or regain 2 percentage points of weight from the participants randomization value will move to a higher intensity step. Participants who maintain weight loss will stay at the same step.

Type: Interventional

Start Date: Feb 2024

open study

The primary objective of this study is to evaluate the long-term safety of avacopan in participants with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV).

Type: Interventional

Start Date: Feb 2024

open study

This is a prospective, multi-center, open label, randomized control clinical trial evaluating the safety and efficacy of the Cordella™ Pulmonary Artery Sensor System in NYHA Class II-III Heart Failure Patients (PROACTIVE-HF-2 Trial). The study contains of 5 arms: NYHA II Cohort - To demonstrate safety and efficacy of the Cordella PA Sensor System in NYHA Class II HF patients, where patients have daily access to PAP data. - Treatment Arm (Group 1) - Active Control Arm (Group 2) - Crossover Arm (Group 3) NYHA III Cohort - To demonstrate safety and efficacy of the Cordella PA Sensor System in NYHA Class III HF patients, where patients have daily access to PAP data, including a randomized sub-study to evaluate a clinician-directed patient self-management strategy.

Type: Interventional

Start Date: Nov 2023

open study

This study aims to assess a mobile app called MAYA for use in middle-aged and older adults with anxiety or mood disorders. The MAYA app is designed to teach coping skills for anxiety and depression that are drawn from cognitive behavioral therapy. Participants will be asked to use the app for at least two days a week, 20 minutes on each day, for six weeks. Participants will have weekly check-ins as well as longer assessments at the beginning of the study, week 3, week 6 (end of treatment), and week 12 (follow up). During assessments, participants will answer brief questionnaires designed to assess their symptoms and impressions of the app. The main hypotheses of the study are that participants will complete most of the assigned sessions and that they will rate their impressions of the app highly. The secondary hypotheses are that symptoms of depression and anxiety will decrease with use of the MAYA app.

Type: Interventional

Start Date: Jun 2023

open study

The proposed study is designed to first test whether teaching people personalized or standardized emotion regulation skills leads to greater decreases in daily negative emotion intensity. Second, using data from an initial sample, the investigators will prospectively assign an independent sample of participants to receive their predicted optimal or non-optimal skills to determine if it is feasible and efficacious to match participants to the most appropriate training condition. Results of these studies may identify the mechanisms by which emotion regulation interventions impact emotional functioning and allow for the development of personalized, evidence-based, and scalable emotion regulation interventions.

Type: Interventional

Start Date: Sep 2023

open study

The overall goal of this project is to advance a biologically-based approach to treatment of reading disorders after stroke, which will expand the limits of cognitive rehabilitation. Using a novel brain imaging technique, called real-time functional magnetic resonance imaging (fMRI) neurofeedback combined with right hand motor imagery, this project will re-instate brain activity in the left language-dominant hemisphere. Stroke patients will practice modulating their own brain activity using fMRI neurofeedback signal and will select the most effective mental strategies that help them maintain brain activation patterns associated with better reading recovery.

Type: Interventional

Start Date: Apr 2023

open study

The purpose of the Trial-Ready Cohort - Down Syndrome (TRC-DS) is to enroll 120 healthy adults with Down syndrome (DS), between the ages of 25-55, into a trial ready cohort (TRC), and up to 550 participants in total including co-enrolled in the Alzheimer Biomarkers Consortium - Down Syndrome (ABC-DS) study. Participants enrolled in the TRC-DS will undergo longitudinal cognitive and clinical assessment, genetic and biomarker testing, as well as imaging and biospecimen collection. Using these outcome measures, researchers will analyze the relationships between cognitive measures and biomarkers of Alzheimer's disease (AD) to identify endpoints for AD clinical trials in DS that best reflect disease progression. To learn more about the study and participating sites, visit our study website at: https://www.trcds.org/. TRC-DS is collaborating with the Alzheimer's Disease Biomarker Consortium-Down Syndrome (ABC-DS) to allow study participants to be concurrently enrolled in both ABC-DS and TRC-DS, referred to as "co-enrollment". ABC-DS is a longitudinal, observational research study that is overseen at University of Pittsburgh Coordinating Center. ABC-DS participants who express interest in potentially joining a clinical trial in the future and who meet TRC-DS eligibility criteria, may choose to co-enroll in TRC-DS at an ABC-DS Site. Co-enrolled participants will adhere to the ABC-DS protocol and schedule of activities, but agree to share their data with the TRC-DS team and to receive invitations for future participation in clinical trials. Fore more information on ABC-DS please visit https://www.nia.nih.gov/research/abc-ds or http://abcds.pitt.edu/.

Type: Observational

Start Date: Jun 2021

open study

Background: Influenza (flu) is a contagious respiratory illness caused by viruses. Flu symptoms can range from mild to severe, and the illness can be fatal. Vaccines help the body learn to prevent or fight infections such as flu. Some vaccines are combined with adjuvants. Adjuvants are special salts or fats that help vaccines work better. Researchers are looking for ways to make flu vaccines more effective. Objective: To test a new flu vaccine with and without a new adjuvant. Eligibility: Healthy adults aged 18 to 50. They must have had at least 1 flu vaccine since 2020. Design: Participants will have 12 clinic visits over 15 months. The vaccine is given as an injection into the muscle of the upper arm. Participants will be vaccinated during 2 visits spaced 4 months apart. Half will receive just the vaccine; half will receive the vaccine plus the adjuvant. They will be monitored for at least 30 minutes after each shot. Participants will keep a diary for 7 days after each shot. They check their temperature every day and record any symptoms. Participants will have 10 follow-up clinic visits plus 4 phone calls. They will have 4 to 10 tablespoons of blood drawn at each clinic visit. Fluid samples will be collected from their nose and mouth. They will be checked for any health changes. Participants may opt to undergo apheresis: Blood will be taken from the body through a needle inserted into a vein. The blood will pass through a machine that separates out the white blood cells. The remaining blood will be returned to the body through a different needle.

Type: Interventional

Start Date: Aug 2025

open study

This is a first-in-human, single-arm, open-label study evaluating the safety, tolerability, and preliminary efficacy of ALLO-329 in adults with autoimmune diseases: systemic lupus erythematosus (SLE) with and without renal involvement, idiopathic inflammatory myopathy (IIM), and systemic sclerosis (SSc).The purpose of this trial is to evaluate the safety and tolerability of ALLO-329, an allogeneic anti-CD19, anti-CD70 dual chimeric antigen receptor (CAR) T cell therapy, in adults with autoimmune disorders, provide initial evidence of biological activity and clinical response to the treatment and determine the recommended Phase 2 regimen (RP2R).

Type: Interventional

Start Date: Nov 2025

open study

This two-arm randomized trial will provide digital cognitive behavioral therapy for insomnia (CBT-I) to all participants and passive body heating (PBH) sessions using a sauna blanket to half of participants over a 9-week treatment period. Participants are adults aged 18 years or older with insomnia disorder.

Type: Interventional

Start Date: Sep 2025

open study

HVTN 206/HPTN 114 is a randomized, double blind, controlled, phase 2 clinical trial to evaluate the safety, tolerability, pharmacokinetics, and neutralization of VRC07-523LS, PGT121.414.LS, and PGDM1400LS broadly neutralizing monoclonal antibodies given intravenously in adult participants without HIV. The hypothesis of the study is that the combination of VRC07-523LS and PGT121.414.LS and PGDM1400LS antibodies when administered via the intravenous (IV) route will be safe and tolerable in adult participants without HIV. The study aims to enroll 200 participants across multiple sites with an estimated total duration of participation of eighteen (18) months.

Type: Interventional

Start Date: Mar 2025

open study

The goal of this study is to test two behavioral interventions for chronic insomnia in individuals with chronic pain and use prescribed opioid medication to treat their chronic pain.

Type: Interventional

Start Date: Dec 2024

open study

The purpose of this study is to see if the sleep aid, lemborexant, can decrease the amount of amyloid-beta and tau in the blood. Amyloid-beta and tau are proteins involved in the disease process leading to Alzheimer's disease.

Type: Interventional

Start Date: Mar 2024

open study

The proposed research is a randomized crossover trial designed to assess changes in postprandial cognitive function and the gut-brain axis in adults with subjective cognitive complaints who consume 1 study snack per day for 1 week.

Type: Interventional

Start Date: Feb 2024

open study

This is a randomized, parallel group, double-blind Phase 2 study with a 52-week blinded extension evaluating the safety and efficacy of 3 dose levels of frexalimab in comparison with placebo in participants with newly diagnosed T1D on insulin treatment. Study details include: Screening period: at least 3 weeks and up to 5 weeks Double-blind treatment period (104 weeks): - Main treatment period: 52 weeks - Blinded extension: 52 weeks Optional Open Label Extension: 104 weeks Safety follow-up: up to 26 weeks The treatment duration will be up to 104 weeks, the total study duration will be up to 135 weeks.

Type: Interventional

Start Date: Dec 2023

open study

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, we will be evaluating the effects of oxycodone and oxytocin (combined and separately, across sessions) on experimentally-induced pain, subjective effects, and decision-making.

Type: Interventional

Start Date: Sep 2023

open study

The purpose of this study is to see if 6 months of home-based walking will improve memory, and brain structure and function, compared to health education in older adults that have chronic kidney disease and mild cognitive impairment.

Type: Interventional

Start Date: Jun 2024

open study