Background: Each year, more than 32,000 people in the United States are diagnosed with colorectal cancer that has returned or progressed after treatment and spread to other organs. This is called metastatic colorectal cancer (mCRC). Most people with mCRC survive only about 2 years. Objective: To test the ability of a combination of up to 4 experimental anti-cancer drugs treat mCRC. The names of these drugs are retifanlimab, TriAdeno vaccine, N-803, and SX-682. They are described below. Eligibility: Adults aged 18 years or older with mCRC. Participants must have Design: Participants will be screened. This includes having a physical exam, blood tests, urine tests, and imaging tests. If signed on to the study, participants will have 2 tumor biopsies. One when starting the study and once about 8 weeks after bring on the study. Participants will receive $500 for each biopsy. Participants will be treated with either 3 or 4 drugs and will receive a detailed calendar explaining when each drug is given. Retifanlimab is given every 4 weeks through an IV (an IV is tube attached to a needle inserted into a vein in the arm). N-803 is injected under the skin on the abdomen every 4 weeks. TriAdeno vaccine is injected under the skin of the upper arm or thigh once a month for 3 doses and then once every 3 months. Some participants will also receive a 4th drug. SX-682 is a pill taken by mouth. Participants will take this drug 2 times a day at home for about 3 weeks of each month. Study treatment will continue up to 2 years. Follow-up phone calls/emails may continue for 3 more years.

Type: Interventional

Start Date: Mar 2024

open study

Background: Endocrine disorders involve changes to glands that produce hormones. Hormones are released by these glands into the blood so they can direct the function of other tissues in the body. Researchers want to study people who may have endocrine disorders. They want to learn more about the conditions that affect endocrine glands. Objective: To study adults with a variety of endocrine disorders for research and physician education. Eligibility: Adults ages 18 and older who have an endocrine or metabolic-related disorder Healthy volunteers 18 and older Design: Participants will be screened with a review of their medical records. Participants will have a physical exam and medical history. The length of the study and the schedule will vary by participant. Tests may include: Blood and urine tests Stool and saliva samples Imaging studies: Participants will lie on a table while a machine takes pictures of the body. They may be injected with a substance to make their organs more visible in the pictures. Tests of endocrine tissue function Consultation with other specialists Sleep study Medical photographs Participants may be treated for their endocrine disorder. This could include: Surgery. If tissue is removed during surgery, it may be studied. Radiation Medicine Participants may have genetic testing. This will be done with a small amount of blood, cells from a cheek swab, or saliva. Sponsoring Institution: National Institute of Digestive, Diabetes and Kidney Disease ...

Type: Observational

Start Date: Mar 2019

open study

Background: - To understand diseases of the retina and the eye, information is needed about people with and without such diseases. Researchers want to study these people and follow them over time. They also want to study body tissues and blood to understand the nature of eye disease. Studying genes, cells, and tissues may help them understand why some people get eye problems and others do not, or why some people respond to treatment while others do not. Researchers want to collect physical samples and personal data to develop a National Eye Institute database. Objectives: - To collect health information and blood and tissue samples from people with and without eye diseases, to be used in research studies. Eligibility: - Individuals at least 2 years of age with different types of eye disease. - Healthy volunteers with no history of eye disease. Design: - Participants may be recruited from National Eye Institute studies or may be referred from other sources. - Participants will be screened with a physical exam and medical history. They will also have a full eye exam. Questions will be asked about family medical history, especially about eye disease. - Blood samples will be collected. Other samples, such as saliva, tears, hair, stool, and urine, may be collected as needed. Adult participants may also provide a skin sample. - Tissue or fluid from eye collected as part of eye care or treatment may also be added to the database. - No treatment will be provided as part of this study.

Type: Observational

Start Date: Jun 2012

open study

Background: Trisomy 8 mosaicism is a genetic disorder that can increase inflammation in the body. Symptoms include fevers; sores or ulcers in the mouth, digestive tract, or genital area; skin rashes; problems in organs or tissues; and changes in bone marrow cells. Researchers want to conduct a natural history study to learn more about these symptoms and what causes them. Objective: To gather data and samples from people with and without the trisomy 8 mosaicism. Eligibility: People of any age with the trisomy 8 gene mosaicism. Their healthy relatives are also needed. Design: Affected participants will have visits every 1 to 2 years for 30 years at NIH. Each visit will take 1 to 5 days and may be in-person or remote. With remote visits, participants may have a video call with the study team and samples may be sent to researchers by mail. Participants may have these procedures: Physical exam, with blood tests. Tests of brain function and motor skills. Sensory tests. Researchers will see how participants respond to sensations such as pinpricks, heat, cold, and pressure. Magnetic resonance imaging (MRI) scan of the brain and/or spine. X-ray of the spine. Ultrasound test of heart function (echocardiogram). Tissues samples (biopsies) collected from the skin, inside of the mouth, and bone marrow. Swabs to collect cells from the mouth, skin, and vagina. Collection of blood, stool, urine, saliva, hair, and fingernail samples. X-rays, MRI, and heart tests will be done only once. Other procedures may be repeated at each visit. All tests and procedures are voluntary. Healthy relatives who enroll will have a baseline visit and then follow-up visits as needed. They will have a physical exam. The inside of their mouth may be swabbed. Samples of blood, stool, urine, and saliva may be taken.

Type: Observational

Start Date: Sep 2026

open study

Background: Irritability can be defined as an unusually strong response to frustration; these responses may include severe temper outbursts and a constant grumpy mood. Irritability is a common symptom of many mental health disorders. Little is known about how the brain responds to frustration, and few treatments are available for this problem. Researchers want to know more about how the brain responds to frustration. Objective: To learn how the brain responds to frustration. Eligibility: Healthy adults aged 18 to 55 years. They must have been screened through studies 01-M-0254 or 17-M-0181. Design: Participants will have up to 3 study visits in 2 months. Each visit will last up to 4 hours. Visit 1: Participants will be screened. They will have a physical exam. They will complete questionnaires about how often and how easily they get angry or grumpy. They will be trained to use a device that measures hand grip. Visit 2: Participants will have a magnetic resonance imaging (MRI) scan. They will lie on a table that slides into a tube. Padding will hold their head still. Visit 3: Participants will undergo magnetoencephalography (MEG). A cone with detectors will be lowered over their head while they are seated. The MEG will measure the magnetic fields in the participant s brain both while they are resting and while they are doing the frustration task. For the task, they will hold a grip device in each hand. They will use the devices to pick 1 of 2 doors on a computer screen. The task has 3 parts. The participant s face will be filmed during this task.

Type: Interventional

Start Date: Feb 2025

open study

Background: At least 30% of Americans have fatty liver disease. This means that they store too much fat in the liver. At the moment lifestyle changes are the only way to treat this problem. Objective: To test how (1) a low-carbohydrate diet and (2) a supplement called nicotinamide riboside (NR) affect how a person s body uses dietary fat. Eligibility: Men aged 18 to 65 and women aged 18 to 50 who are healthy volunteers with a body mass index (height to weight ratio) of 25 or more. Adults with maturity-onset diabetes of the young type 2 (MODY2) are also needed. Design: Participants with diabetes will have 1 screening visit and a 9-day clinic stay. Healthy volunteers will have 1 screening visit and 2 clinic stays of 1 to 2 weeks each. During screening, all participants will have a physical exam with blood and urine tests. They will have their heart rhythm measured while riding a gym bike. NR is a pill taken by mouth. Only healthy volunteers will take the NR, for 14 days at a time, during 1 clinic stay. During their other stay, they will take placebos; these are pills that look like the study supplement but contain no NR. During each clinic stay, all participants will eat a normal American diet. Then they will eat a ketogenic "low-carb" diet for 5 days. Participants will have many tests, including: Sleeping every night and having two 24-hour stays in a special room that measures the gases their body uses and produces. Drinking a high-fat shake, then remaining seated for 5 hours while their blood and breath are monitored. Having a substance injected into the arm and remaining seated for 3 hours while their blood is measured. Wearing monitors to measure their activity levels. Another monitor will measure their blood glucose levels. Having imaging scans. ...

Type: Interventional

Start Date: Jan 2024

open study

The goal of this clinical trial is to examine perceptions of virtual human communicators and cancer research recruitment messages. This study will also examine how different informed consent approaches influence decisions to participate in research.

Type: Interventional

Start Date: Jul 2026

open study

This study evaluates the effects of daily consumption of a yogurt on immune function and subjective health status in healthy adults in the United States. Participants are randomly assigned to receive either the active yogurt or a placebo once daily for 8 weeks. The study assesses immune function using salivary immunoglobulin A and other immune-related biomarkers. The study also evaluates cold-like symptoms, quality of life, gastrointestinal symptoms, stress, and sleep-related outcomes.

Type: Interventional

Start Date: Sep 2026

open study

The purpose of this prospective study is to investigate whether ophthalmic artery stenosis (narrowing of the ophthalmic artery) contributes to the development and progression of geographic atrophy (GA), an advanced form of dry age-related macular degeneration (AMD).

Type: Observational [Patient Registry]

Start Date: Sep 2026

open study

Anesthetic greater occipital nerve (GON) blockade is a simple, inexpensive, and safe procedure that has demonstrable headache pain suppressing effects. In this study, Veterans with post-traumatic headache will be randomized to receive 0.0%, 0.05%, or 0.5% bupivacaine in bilateral GON blocks and the lasting (i.e., transitional) effects on headache frequency measured in a headache diary.

Type: Interventional

Start Date: Sep 2026

open study

The purpose of this study is to find out if a psychotherapy method called brief behavioral activation (BBA) can improve depression, anxiety, and overall well-being and encourage healthy lifestyle behaviors in English- and Spanish-speaking Older Adult Cancer Survivors (OACS). BBA is a therapeutic technique that guides people to set goals and engage in enjoyable or rewarding activities as a way of changing behavior and reducing symptoms of depression. In this study, BBA will be given by telephone or videoconference (remotely).

Type: Interventional

Start Date: Aug 2026

open study

Atopic dermatitis is well reported to have a significant impact on well-being in adolescents with atopic dermatitis, without clear recommendations for intervention. The investigators aim to identify an accessible, effective digital health intervention for these patients. The investigators hypothesize that regular use of a digital mindfulness meditation app will improve disease control and quality of life in adolescents with moderate to severe atopic dermatitis based on validated survey measures.

Type: Interventional

Start Date: Aug 2026

open study

The purpose of this clinical study is to look at how well a study medicine called cagrilintide helps people living with excess body weight to lose weight. Participants will either get cagrilintide, the active study medicine being tested or placebo, a medicine that has no active medicine in it. Which treatment participants get is decided by chance. Cagrilintide is a new medicine under development that doctors cannot prescribe yet, but it has been tested in humans before. Participants will be in this clinical study for about 9 months.

Type: Interventional

Start Date: Aug 2026

open study

This study is a Phase 3, multi-center, randomized, 6-week, double-blind, placebo-controlled, parallel-group trial to assess the efficacy and safety of solriamfetol in adolescents aged 12 to <18 years with ADHD.

Type: Interventional

Start Date: Jun 2026

open study

This study is being conducted to look at the effect YB-101 has on thyroid function. This study will also evaluate how safe and well tolerated YB-101 is and how it is distributed through the body. The study consists of a part 1, blinded treatment period, and a part 2 double-blinded treatment period. Participants will receive YB-101 or Placebo subcutaneously. Participants who participate in Part 1 can not participate in Part 2. Participants will complete 34-39 in-clinic visits in Part 1 or Part 2 over an approximate 40 week period.

Type: Interventional

Start Date: Jun 2026

open study

The purpose of this study is to learn whether adding extra doses of azithromycin to the standard antibiotic treatment for preterm prelabor rupture of membranes may improve pregnancy outcomes for patients between 22 weeks and 28 weeks gestational age. Researchers will compare the standard antibiotic treatment to the standard antibiotic treatment with additional doses of azithromycin. Participants will: - Be randomly assigned to one of two groups: - The standard antibiotic treatment - The standard antibiotic treatment plus 7 additional doses of oral azithromycin 500 mg every other day. - Participants will be asked to complete a survey regarding their experience and side effects.

Type: Interventional

Start Date: Aug 2026

open study

The purpose of this study is to evaluate the long-term safety, tolerability and efficacy of remibrutinib (LOU064) in adult participants with moderate to severe hidradenitis suppurativa (HS) who have completed either of the preceding Phase 3 studies, CLOU064J12301 or CLOU064J12302.

Type: Interventional

Start Date: Jul 2026

open study

The goal of this study is to help children with autism and a co-occurring intellectual disability and their families learn practical strategies for managing issues like irritability, aggression, and other challenging behaviors. The main objective of this study is: To adapt current Regulating Together materials to create an outpatient group program for emotion dysregulation in autism and co-occurring intellectual disability (ASD + ID) that will improve psychosocial outcomes for youth with ASD + ID.

Type: Interventional

Start Date: Oct 2027

open study

This study will evaluate whether the InTune product system may help support attention, memory, focus, and other thinking skills in healthy adults ages 18-64. Participants will be randomly assigned to receive either the InTune products or placebo products that look and feel the same but do not contain active ingredients. Participants will use the products throughout their participation in the study and complete a series of cognitive tests and questionnaires at the beginning and end of the study. Researchers will compare changes in memory performance, self-reported mental clarity and focus, product experiences, and any side effects between the two groups.

Type: Interventional

Start Date: Jun 2026

open study

The main objective of this study is to evaluate the effect of ION775 on fasting triglyceride (TG) levels in participants with hypertriglyceridemia (HTG) and severe hypertriglyceridemia (sHTG).

Type: Interventional

Start Date: May 2026

open study

This study will evaluate the pharmacokinetic effects of acute and chronic dosing of a hemp-based cannabidiol (CBD) topical lotion with low levels of delta-9-tetrahydrocannabinol (THC) in a sanitized and controlled environment.

Type: Interventional

Start Date: May 2026

open study

Researchers are looking for new ways to treat certain types of advanced and/or metastatic solid tumors. The main goal of this study is to learn about the safety of different doses of MK-4884 and if participants tolerate them.

Type: Interventional

Start Date: Jun 2026

open study

The purpose of this clinical study is to learn about the effects and safety of berobenatide (PF-08653944). This may help people with overweight or obesity lose weight. People in this study may also have type 2 diabetes. About 950 adults will be in this study. Berobenatide will be compared to a placebo. A placebo does not have any medicine in it but looks just like the medicine being studied. Berobenatide or placebo is given by a shot under the skin in the belly area. The objective of the study is to compare the experiences of people receiving berobenatide to those of the people who do not to assess if the study medicine is effective and safe. People will take part in this study for about 20 months. During this time, they will have about 15 study visits at the site. They will also have 2 study visits over the phone.

Type: Interventional

Start Date: Jun 2026

open study

The purpose of this study is to evaluate how well brenipatide (LY3537031) is tolerated what side effects may occur, and the safety and efficacy in participants with Irritable Bowel Syndrome-Constipation (IBS-C). The study drug will be administered subcutaneously (SC) (under the skin) when compared with placebo. The study will last approximately 35 weeks.

Type: Interventional

Start Date: Apr 2026

open study

The purpose of this study to find out whether mirdametinib is a safe and effective treatment for Central Nervous System/CNS tumors (glioma and neurohistiocytosis).

Type: Interventional

Start Date: Apr 2026

open study