Background: Eosinophilic esophagitis (EoE) is a disease that causes inflammation in the esophagus. The esophagus is the tube that moves food from the mouth to the stomach. Diagnosing EoE currently requires a specialized tool called an endoscope. The esophageal string test (EST) is another test; the EST collects fluid from the upper digestive tract. An EST is simpler and cheaper than an endoscopy. Researchers want to know if an EST can diagnose EoE. Objective: To test if the EST can diagnose EoE in people who have trouble swallowing. Eligibility: Adults aged 18 to 65 years with trouble swallowing. They must have been born in Africa and be of African descent. Design: Participants will be screened. They will give blood, stool, urine, and skin swab samples. They will complete surveys about their medical history, diet, symptoms, and home environment. They will bring a sample of their drinking water for testing. Participants will have an EST. They will swallow a pill capsule that contains a nylon string. One end of the string will be taped to their cheek. The string will unravel down the esophagus and into the stomach. It will be pulled out after 1 hour. Fluids that soaked into the string will be tested. At a different visit, participants will have an endoscopic exam. An endoscope is a flexible tube that is inserted down the mouth; it can be used to take tissue samples from the esophagus, stomach, and small intestine. Participants will have a final visit in person, online, or by phone. They will take a survey and talk about their test results.

Type: Interventional

Start Date: Dec 2025

open study

Background: Myelodysplastic syndromes (MDS) are disorders of blood stem cells that can develop into blood cancers. Treatment options are limited. To find better treatments, researchers need to better understand how MDS develops. To do that, they must be able to compare biospecimens from people with the disease to those of healthy people. Objective: This study will create a database of biospecimens collected from healthy volunteers. Eligibility: Healthy people aged 18 and older. Design: Participants will be screened. They will have a physical exam with blood and urine tests. Up to 5 types of samples will be collected on 1 or more days within 1 month of screening: Blood: Blood will be drawn by inserting a needle into a vein. Saliva: Participants will scrape the insides of their cheeks with a brush. Stool: Participants will be given a container to collect stool at home. They will use a prepaid envelope to mail in the sample. Bone marrow: A sample of the soft tissue inside the bones will be drawn out. The area to be biopsied, usually the lower back, will be numbed. A needle will be inserted through a small cut to remove the sample. Participants' pain will be monitored; additional numbing medicine may be used. Skin: A piece of skin about 1/6 of an inch across will be cut away. Stitches may be used to close the wound. Participants will return to the clinic to have the stitches removed. Participants do not have to provide all of the samples listed. They will give each sample only once.

Type: Observational

Start Date: Jan 2023

open study

Background: - Scientists know that alcohol use disorders affect brain structure. They want to know more about the effects of alcohol use disorders on a person s behavior. They want to develop tasks that can be done inside a scanner that can help them better understand these effects in later studies. Objective: - To develop tasks that investigate a person s behavior that can be used in later studies. Eligibility: - Inpatient participants of another study. They must be physically healthy right-handed adults 18-60 years old. - Healthy right-handed volunteers 18-65 years old. Design: - Participants will be screened with medical history and physical exam. They will have an EKG to record heart activity. They will give blood and urine samples and have a psychiatric interview. - Participants will have between one and three visits. - Participants will be asked about their alcohol drinking to see if they have an alcohol use disorder. - Participants will complete one of three simple computerized tasks either inside the magnetic resonance imagining (MRI) scanner or outside of it. - The MRI scanner takes pictures of the brain. The scanner is a metal cylinder. Participants lie on a table that can slide in and out of the cylinder. They will be in the scanner for about 60 minutes. They may have to lie still for up to 20 minutes. The scanner makes loud knocking noises, but they will get earplugs.

Type: Interventional

Start Date: May 2014

open study

Background: Adrenocortical carcinoma (ACC) is a rare cancer of the adrenal glands. ACC often returns after tumors are removed with surgery. Less than 35% of people with ACC survive 5 years after diagnosis. Objective: To test a new type of external beam RT before surgery in people with ACC. Eligibility: People aged 18 years and older with ACC that came back after treatment but may be safely removed with surgery. Design: Participants will be screened. They will have a physical exam with blood and urine tests. They will have tests of their heart function. They will have imaging scans. A small sample of tumor tissue may be collected if one is not available. They will undergo laparoscopy: Small incisions will be made in the abdomen so that a thin tube with a light and camera can be inserted to view the organs. RT comes from a machine that aims radiation at tumors. Participants will receive preoperative RT in daily fractions over approximately 2-3 weeks, followed by a planned surgical resection about 4 weeks after the completion of RT. Visits will last 30 to 60 minutes. Participants will undergo surgery to remove their tumors about 4 weeks after they finish RT. They will stay in the hospital 1 to 3 weeks after surgery. Participants will have follow-up visits for 10 years after surgery.

Type: Interventional

Start Date: Dec 2025

open study

Background: Chronic heavy drinking can cause alcohol use disorder (AUD). AUD changes how the brain works. People with AUD may drink compulsively or feel like they cannot control their alcohol use. Acamprosate is an FDA-approved drug that reduces anxiety and craving in some, but not all, people with AUD. Objective: To learn more about how acamprosate affects brain function in people with AUD. Eligibility: People aged 21 to 65 years with moderate to severe AUD. Design: Participants will stay in the clinic for 21 days after a detoxification period of approximately 7 days. Acamprosate is a capsule taken by mouth. Half of participants will take this drug 3 times a day with meals. The other half will take a placebo. The placebo looks like the study drug but does not contain any medicine. Participants will not know which capsules they are taking. Participants will have a procedure called electroencephalography (EEG): A gel will be applied to certain locations on their scalp, and a snug cap will be placed on their head. The cap has sensors with wires. The sensors detect electrical activity in the brain. Participants will lie still and perform 2 tasks: they will look at different shapes and press a button when they see a specific one; and they will listen to tones and press dedicated buttons when they hear the corresponding tones. Participants will have 2 EEGs: 1 on day 2 and 1 on day 23 of their study participation. They may opt to have up to 4 more EEG studies (one on day 13 and one on each of the three follow-up visits) and 2 sleep studies, in which they would have sensors attached to their scalp while they sleep. Participants may have up to three follow-up visits for 6 months.

Type: Interventional

Start Date: May 2025

open study

Background: Research studies have shown that genetic changes and family history may increase a man s risk for prostate cancer. Researchers want to follow the prostate health of men who have specific genetic changes associated with prostate cancer to help them learn more about which men are at higher risk for prostate cancer. Objectives: To study men with specific genetic changes and determine who is at higher risk for getting prostate cancer. To study if certain genetic changes and family history can be used to help prevent or treat prostate cancer. Eligibility: Males between ages 30-75 who have one or more specific genetic changes but without prostate cancer. Design: - This study does not perform genetic testing. All participants must have documented genetic changes and able to provide a copy of the report. - Before enrollment, participants will provide a copy of documented genetic changes and go through a telephone interview to determine eligibility for the study. - On enrollment, participants will have medical and family history review, medication review, physical exam, blood collection for clinical and research testing, and MRI (magnetic resonance imaging) of the prostate. - Every year, participants will repeat the physical exam, medical history, family history, medication review, routine blood tests, including PSA and testosterone. - Every 2 years, participants will repeat all the above plus prostate MRI and blood tests for research. - If, at any time, the physical exam, blood tests or MRI are abnormal, participants may be asked to do a biopsy. - If the biopsy results in prostate cancer, participants will be given counseling on next steps, general treatment recommendations, and then followed with a phone call each year. - Participants may ask to speak with a genetic counselor.

Type: Observational

Start Date: Mar 2019

open study

Background: Some genetic diseases put increase the risk of heart and blood diseases, which are the number one cause of death and disability in the U.S. Researchers want to study diseases of the heart and/or blood vessels. They want to collect data and specimens from affected people, their family members, and healthy people. Objective: To study diseases of the heart and/or blood vessels. Eligibility: People age 2 and older who may have genetic disease affecting the heart and/or blood vessels Their relatives Healthy volunteers Design: Participants will be screened with a medical history, physical exams, and imaging tests. Participants may have a few visits or visits for 2 weeks or more. This will depend on their age and disease status. Visits may include: Photographs of the face and body Heart tests Samples taken of blood, urine, saliva, skin, and/or tissue Scans. For some, a dye may be injected into a vein. A six-minute walk test Lung tests. For some, participants will blow into a tube. For others, they will breathe in a gas from a mask, have a small injection, then have a scan. Stress tests while walking on a treadmill or riding a stationary bike Ultrasound of veins and arteries Devices outside the body testing the stiffness and function of arteries Eye exam and eye tests. For some, a dye may be injected in a vein. Blood pressure tests Measurements of blood flow under the skin and in the arms and fingernail blood vessels Devices outside the body testing flexibility of the blood vessels and skin, and skin temperature...

Type: Observational

Start Date: Jul 2018

open study

Background: The vagus nerve runs from the brain to many organs. Stimulating it can affect the experience of pain. The nerve can be stimulated on the surface of the left ear. Researchers want to study how this stimulation affects the perception of pain. They also want to study how mood affects the experience of pain. Objective: To study the effects of mood and vagus nerve stimulation on the experience of pain. Eligibility: Healthy people ages 18 and older who are fluent in English Design: Participants will be pre-screened with a 15-minute phone call. Participants will have three 2-hour visits. At the screening visit, participants will be screened with: Medical and psychiatric history Physical and psychological exams Questionnaires about physical and psychiatric health and mood Urine tests A heat probe on the forearm. The temperature will be increased until it is painful but tolerable. Participants will have 2 testing sessions within 7 days. Before the testing, they cannot do the following: Eat, use nicotine, or exercise for at least 2 hours Drink alcohol for 24 hours Take certain medicines for 3 days Testing includes: Urine drug screening Left ear stimulation: In one session, the vagus nerve will be stimulated. In the other, an area of the ear away from the vagus nerve will be stimulated. This will be done with mild electric shocks that cause a tingling, pricking, or itchy feeling. Heat applied to the forearm until it is painful but tolerable Completing several forms on a computer or on paper about how they are feeling Monitors on the chest and a finger clip to monitor heart, breathing, and blood pressure

Type: Interventional

Start Date: Oct 2016

open study

Background: - The rare disease melorheostosis causes bones to thicken. This may lead to pain, and can affect bones, joints, and muscles. Researchers want to learn more about the disease and how it progresses. Objective: -To see what happens to people with melorheostosis over time and understand the causes of the disease. Eligibility: - People 18 and over with melorheostosis. - Their unaffected relatives. Design: - All participants will have a medical history and physical exam. - Participants who are relatives will give samples of blood or cheek cells. - Other participants will be in the study for about 1 week. - They will have blood and urine collected. - Strength, walking, and range of motion will be measured. - Participants may also have - X-rays and scans. - A pain and neurological evaluation. - Their skin evaluated by a dermatologist. - A small sample of bone taken. - Nerve conduction studies. Small electrodes with to wires will be put on the skin. A metal probe will give a small electrical shock. - Electromyography. A thin needle will be placed into the muscles. - An ultrasound, which uses sound waves to examine the muscles and nerves. An ultrasound probe will be placed over the skin. - A bone scan. They will get a small amount of radioactive fluid through a needle in an arm vein. This fluid travels to the bones. The bones will be photographed in a machine. - Bone Densitometry, a low-level x-ray. - Photographs taken. - A small circle of skin removed with a surgical instrument. - Questionnaires about their quality of life. - Participants will be asked to return about every 2 years. At these visits, participants may have blood and urine tests and x-rays.

Type: Observational

Start Date: Aug 2015

open study

The purpose of this study is to understand the safety and estimate the efficacy of combining anti-CD3 x anti-CD33 bispecific antibody (CD33Bi) armed fresh peripheral blood mononuclear cells (CD33Bi FPBMC) for patients with acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) where they still have detectable disease ("MRD+") after some treatment. Participants receive 4 weekly doses of CD33 FPBMC by intravenous infusion followed by 4-6 weeks of standard treatment with a hypomethylating agent (type of treatment such as decitabine or azacitidine) and possibly a drug called venetoclax. This is considered 1 cycle of study treatment and may be repeated up to 4 times during the study.

Type: Interventional

Start Date: Dec 2025

open study

The goal of this clinical trial is to learn if VENT-03 works to treat patients with cutaneous lupus erythematosus (CLE) who may or may not have systemic lupus erythematosus (SLE). Another goal is to learn about the safety of VENT-03 and how it is processed by the body. The main questions it aims to answer are: - Does VENT-03 affect the activity and severity of CLE? - What side effects do participants have when taking VENT-03? Researchers will compare VENT-03 to a placebo (a look-alike substance that contains no drug) to see if VENT-03 works to treat patients with CLE. Participants will: - Take VENT-3 or a placebo every day for 4 weeks, then all participants will switch to VENT-03 for another 8 weeks; - Visit the clinic once a month for checkups and tests.

Type: Interventional

Start Date: Dec 2025

open study

Cannabidiol oral solution (CBD-OS) is approved in the US for the treatment of seizures associated with Lennox-Gastaut syndrome (LGS), Dravet syndrome (DS), or Tuberous sclerosis complex (TSC) in patients 1 year of age and older. This study will assess the efficacy and safety of CBD-OS in participants aged 12 to 75 years for the treatment of focal-onset seizures (FOS).

Type: Interventional

Start Date: Nov 2025

open study

This is a study to evaluate the safety and preliminary anti-tumor activity of STRO-004 in adults with metastatic cancer. This study includes 3 parts: - Part 1A is a dose escalation study of STRO-004 monotherapy in selected tumor types known to commonly express Tissue Factor (TF). - Part 1B is a cohort expansion in 1 or more types of cancer to further evaluate a STRO-004 monotherapy dose, determine the best dose for use in later phases, and examine anti-tumor activity. - Part 1C is a dose escalation of STRO-004 combined with pembrolizumab to determine tolerability and preliminary anti-tumor activity of both drugs used together.

Type: Interventional

Start Date: Nov 2025

open study

This study evaluates the efficacy and safety of brenipatide when compared to placebo for reducing the risk of relapse to cigarette smoking in adults who have recently quit. Study participation will last approximately 34 weeks with up to 17 study visits, which includes a 2-week screening period, 24-week treatment period, 8-week safety follow-up period. .

Type: Interventional

Start Date: Nov 2025

open study

This global, open-label, single arm, phase 1b study aims to learn more about whether a treatment called JNJ-90301900 is safe and effective when injected directly into tumors, along with standard chemotherapy and radiation therapy, for participants with head and neck squamous cell cancer (HNSCC; a type of solid tumor that begins in outer tissue layer of the mouth & throat).

Type: Interventional

Start Date: Dec 2025

open study

The purpose of this study is to investigate weight reduction with macupatide and eloralintide, alone or in combination, in adult participants with obesity or overweight and with type 2 diabetes. Participation in the study will last about 48 weeks.

Type: Interventional

Start Date: Oct 2025

open study

This is a sequential Phase 1/2, two-part, multicenter study on safety, tolerability, and efficacy of one-time intravitreal SAR446597 for the treatment of participants with Geographic Atrophy (GA) secondary to Age-related Macular Degeneration (AMD). The core phase duration will be approximately 2 years for each participant. An Extended Follow-Up (EFU) phase of 3 years follows the core phase. The treatment is a one-time intravitreal injection of SAR446597 (or sham as applicable in Part II).

Type: Interventional

Start Date: Oct 2025

open study

This is a clinical study that has two parts. It is testing a potential new medicine called LY4170156 for people with certain types of ovarian, peritoneal, and fallopian tube cancers. Part A looks at participants whose cancer no longer responds to platinum-based treatments (a type of chemotherapy). Part B looks at participants whose cancer still responds to platinum-based treatments. The researchers want to find out if LY4170156 works better than the usual treatments that doctors use now and to better understand how safe it is. Each participant's time in the study will depend on how they respond to the treatment.

Type: Interventional

Start Date: Oct 2025

open study

The purpose of this study is to evaluate how-well icotrokinra works (clinical efficacy) and how safe it is (safety) in participants with moderately to severely active Crohn's disease (CD; a long-term condition causing severe inflammation of the intestinal tract).

Type: Interventional

Start Date: Oct 2025

open study

This study is designed to compare weight loss outcomes and safety of ESG versus lifestyle modification in patients with obesity who discontinued GLP-1 therapy due to intolerance or suboptimal weight loss.

Type: Observational

Start Date: Dec 2025

open study

Researchers want to learn if the study medicines MK-1084 and subcutaneous (SC) pembrolizumab can be used to treat non-small cell lung cancer (NSCLC) when given together. MK-1084 is a targeted therapy for the KRAS G12C mutation. The goal of this study is to learn if people who receive MK-1084 with SC pembrolizumab live longer without the cancer growing or spreading than in people who receive SC pembrolizumab with chemotherapy.

Type: Interventional

Start Date: Oct 2025

open study

This Phase 3 study compares rondecabtagene autoleucel (ronde-cel), a dual-targeting CD19/CD20 CAR T-cell therapy, with investigator's choice of CD19 CAR T-cell therapy in patients with relapsed or refractory large B-cell lymphoma in the second-line setting.

Type: Interventional

Start Date: Jan 2026

open study

This project aims to improve the quality of life and functional outcomes for young non-ambulatory children with Cerebral Palsy (CP) by investigating the efficacy of an Activities-Based Locomotor Training (AB-LT) program compared to usual care. By targeting the body structures, activities, and participation components of the World Health Organization's International Classification of Functioning, Disability, and Health (ICF) framework, this study seeks to enhance our understanding of neuroplasticity and motor learning in this population, offering a novel approach to rehabilitation. Results from this research will lead to more effective, individualized therapies that improve motor function, reduce disability, and ultimately lower the long-term healthcare needs associated with CP.

Type: Interventional

Start Date: Jan 2026

open study

The primary objective of this study is to evaluate the effect of 24-weeks of once daily treatment with TPIP versus placebo on exercise capacity in adults with PH-ILD.

Type: Interventional

Start Date: Jan 2026

open study

Phase 3/4 open label, randomized two cohort study (2 arms in each cohort). It is hypothesized that for people with a histologically or cytologically confirmed diagnosis of malignancy, the higher dose immunotherapy (every 6 weeks Pembrolizumab 400mg dose and every 4 weeks Nivolumab 480mg dose) has more immune-related adverse events irAEs compared to lower dose (every 3 weeks Pembrolizumab 200mg dose and every 2 weeks Nivolumab 240mg dose).

Type: Interventional

Start Date: Oct 2025

open study