Clinical trials

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Condition / disease
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Status: Not yet recruiting

Pre-pubertal Low Dose Transdermal Estradiol in Turner Syndrome

This is a research study to find out if treatment with transdermal estradiol patches started between 8 to 11.5 years is safe in girls with Turner syndrome who have ovarian failure and to see whether it may improve performance on two tests of working speed and short-term memory.

Participants needed: 15
Trial details
Phase: Phase 2Age: 8-12Biological sex: FemaleType: InterventionalSponsor: Children's National Research InstituteUpdated: Aug 25, 2026Locations: 1
Eligibility criteria

Provision of signed and dated informed consent form [+5]

Spontaneous thelarche with breast Tanner stage 3 or more, spontaneous menarche o... [+7]

Status: Not yet recruiting

Base-Edited Hematopoietic Stem/Progenitor Cell Gene Therapy for Treatment of CXCR4-WHIM

Background: Warts, hypogammaglobulinemia, infections and myelokathexis syndrome (WHIMs) is a rare disorder that affects the immune system. People with WHIMs can have severe infections all over their body. WHIMs is caused by a mutation in the CXCR4 gene. Treatment with drugs can help control the infections but does not cure the disorder. Researchers want to try a treatment where they collect stem cells from a person with WHIMS, use base-editing to replace the bad gene with a healthy version, and return the new cells to the person. This could cure WHIMs. Objective: To test a treatment using base-edited stem cells in people with WHIMs. Eligibility: People aged 3 years and older with WHIMs. Design: The study has 4 stages. Stage 1: Screening. Participants will be screened at 1 or more visits. They will have a physical exam with blood tests. A sample of tissue and fluid (biopsy) will be taken from the bone marrow in the hip. Stage 2: Apheresis. Blood will be taken from the body through a needle; the blood will pass through a machine that separates out the stem cells. The remaining blood will be returned to the body through a different needle. The collected stem cells will undergo gene editing. Stage 3: Treatment. Participants will stay in the hospital for about 4 weeks. They will receive 3 drugs to prepare their body for the procedure. Then the edited stem cells will be returned to their bloodstream. They will stay in the hospital until they recover. Stage 4: Follow-up. Participants will have 8 follow-up visits over 5 years. Long-term visits will continue for 15 years.

Participants needed: 10
Trial details
Phase: Phase 1, Phase 2Age: 3-75Biological sex: AllType: InterventionalSponsor: National Institute of Allergy and Infectious Diseases (NIAID)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Aged >= 3 years and weighing >=15 kg. [+9]

Acute onset infection as indicated by symptoms such as persistent fevers, or ima... [+7]

Status: Recruiting

A Study to Evaluate the Safety and Effectiveness of Upadacitinib in Pediatric Participants With Alopecia Areata

Alopecia areata (AA) is a disease that happens when the immune system attacks hair follicles and causes hair loss. AA usually affects the scalp and face, but hair loss can happen on any hair-bearing part of the body. Some treatment options are available for adults and adolescents with AA, however there is still high unmet need for systemic treatments (treatment that moves throughout the bloodstream) approved for young patients with AA. Treatments may not work for all patients or may stop working over time. Because of this, researchers are developing new AA treatments, like upadacitinib. Upadacitinib is a type of medicine called a Janus- Kinase (JAK) inhibitor and works with the body to fight the inflammation that can cause AA. In this study, different doses (amounts) of upadacitinib are being compared to treatment with placebo (looks like the study treatment but contains no medicine). Upadacitinib is an investigational JAK inhibitor being developed for the treatment of severe alopecia areata in pediatric patients. This is a randomized, double-blind, placebo-controlled study. Participants are placed in 3 groups, called treatment arms. Each group receives a different treatment. There is a 1 in 5 chance that participants will be assigned to placebo. Pediatric participants with a diagnosis of severe alopecia areata with SALT score ≥ 50 scalp hair loss will be enrolled. Participants will be at least 6 years old at Screening and less than 18 years old at Baseline. Approximately 300 participants will be enrolled in the study at approximately 120 sites worldwide. Participants will receive oral doses of upadacitinib or matching placebo daily, or twice daily, for approximately 160 weeks. The study comprises a 35-day Screening Period, a 24-week placebo-controlled double-blinded treatment period (Period A), a 28-week blinded extension treatment period (Period B), a 108-week blinded long-term extension period (Period C), and a 30-day follow-up period. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, blood tests, checking for side effects and completing questionnaires.

Participants needed: 300
Trial details
Phase: Phase 3Age: 6-17Biological sex: AllType: InterventionalSponsor: AbbVieUpdated: Aug 25, 2026Locations: 4
Eligibility criteria

Participants must have a diagnosis of severe alopecia areata with SALT score >=... [+2]

Participants must not have a current diagnosis of primarily diffuse type of alop... [+2]

Status: Not yet recruiting

Miniature In-line Respirator

This first-in-human pilot study will test an investigational miniature breathing device called the Hope inVent. The device is a small, single-use, in-line respirator that connects to a breathing tube and uses compressed oxygen to help move air in and out of the lungs. It has no moving parts and is designed to provide short-term breathing support in situations where standard ventilators may not be available, such as emergencies, disasters, battlefield settings, transport, or ventilator shortages. The study will enroll up to 5 brain-dead organ donors who are already receiving mechanical ventilation at the Gift of Life Donor Care Center at the Hospital of the University of Pennsylvania. Donors will only be included after authorization for organ donation and research has been obtained through standard procedures. Donors who may donate lungs or who have significant lung disease will not be included. During the study, investigators will briefly replace the standard ventilator with the Hope inVent device for up to 15 minutes. The standard ventilator will remain immediately available, and the donor will be continuously monitored by the clinical and research teams. Investigators will measure whether the device can maintain acceptable breathing measures, including oxygen level and carbon dioxide level. They will also record breathing pressures and tidal volume, which is the amount of air delivered with each breath. If the device does not perform as expected or if any safety concern occurs, the donor will be returned immediately to the standard ventilator. There is no direct benefit to the organ donor. Information from this study may help determine whether this type of simple, low-cost breathing device could be useful for future patients who need emergency or short-term ventilator support when standard ventilators are not available.

Participants needed: 5
Trial details
Age: 1-100Biological sex: AllType: InterventionalSponsor: National Institutes of Health Clinical Center (CC)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

1. Diagnosis of brain death [+3]

Brain-dead research donor will be excluded if their baseline CO(2) or pulse oxim... [+7]

Status: Not yet recruiting

Augmenting Parent Management Training for Child Temper Outbursts Using a Digital Tool

Background: Pediatric disruptive behavior disorders (DBDs) are characterized by severe irritability, anger, and temper outbursts. The primary way to treat children with DBDs is parent management training (PMT). PMT teaches parents how to reward desired behaviors and not to reward undesired ones. Researchers want to find out if a smartphone app can help parents apply these skills more effectively. Objective: To test a smartphone app to enhance PMT. Eligibility: Children aged 8 to 13 years with DBDs. A parent or guardian is also needed. Design: Parents will have 12 weekly sessions of PMT. PMT teaches them how to manage their child s mood and behaviors. Parents will learn to actively ignore, praise, set limits, and handle temper outbursts. PMT can be either in person or via video. Sessions last 30 to 60 minutes. They will be video and audio recorded. Parents will be divided into 2 groups. Only 1 group will download a smartphone app. The app helps parents practice PMT skills. It offers videos, a resource library, and alerts when a child may be at risk for various behaviors. All parents will be prompted every day to answer questions about their child s mood and their own behavior. These will continue until 12 weeks after their last PMT session. Children will also answer questions on their phone daily for 1 week at a time. They will do this on 3 different weeks, each about 2 months apart. They will also have check-ins by phone every 2 weeks for up to 6 months. Parents will have follow-up calls 3, 6, and 12 months after they finish PMT.

Participants needed: 200
Trial details
Age: 8-13Biological sex: AllType: ObservationalSponsor: National Institute of Mental Health (NIMH)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Enrollment into protocol 01-M-0254 for screening purposes [+10]

Active major depressive disorder or history of psychosis, bipolar I disorder, Le... [+5]

Status: Not yet recruiting

Combination Bevacizumab and PRGN-2012 in Adults With Recurrent Respiratory Papillomatosis (RRP)

Background: Recurrent respiratory papillomatosis (RRP) is a rare disease that causes wart-like growths called papillomas to grow in the airway, most often in the voice box, windpipe, or lungs. These growths can make it hard to speak or breathe. Surgery can remove the papillomas, but they often come back. In some cases, they can become cancerous. Objective: This study istesting whether two treatments used together (PRGN-2012, a vaccine-based treatment and bevacizumab, a drug that affects blood vessel growth) can help control RRP and reduce the chance that papillomas will grow back. Eligibility: Adults aged 18 years and older may be able to join the study if they have RRP and meet certain treatment history requirements. This may include people who have previously received PRGN-2012 or bevacizumab, or people who have needed more than 2 surgeries to remove papillomas. Design: Before starting treatment, participants will have screening tests to make sure the study is safe for them. These tests may include a physical exam with blood and urine tests, heart function testing, imaging scans, and an endoscopy. During an endoscopy, a thin, flexible tube with a small camera will look at the inside of the nose, throat, voice box, and upper windpipe. Participants will receive study treatment during 7 clinic visits over about 6 months. Bevacizumab is given through a vein amd PRGEN-2012 is given as an injection under the skin of the arm or leg. Participants may receive 1 or both drugs at each visit. After completing treatmen, participants will return for 4 follow-up visits over 1 year. These visits may include repeat imaging, blood and urine tests, and other exams. After that, the study team will contact participantsby phone or email every 3 months for 2 years. If their RRP gets worse during the follow-up period, they may be able to receive a second course of treatment using the same schedule....

Participants needed: 50
Trial details
Phase: Phase 2Age: 18-120Biological sex: AllType: InterventionalSponsor: National Cancer Institute (NCI)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Histological or cytological diagnosis of RRP confirmed by pathology report. Note... [+17]

History of significant cardiovascular disease or thromboembolic event: cerebral... [+19]

Status: Not yet recruiting

Visual Attention, Object Recognition, and Eye Movements in Healthy Volunteers

Background: Vision is vital for many of our daily activities. Researchers want to learn more about how we aim our eyes (that is, what images, such as faces, immediately attract our attention) and how we direct our attention (that is, what we see and what we ignore). Objective: To study how healthy adults process and respond to visual images. Eligibility: Healthy people aged 18 years with no vision problems. Design: Participants will have 5 to 10 clinic visits over 2 to 4 months. Some participants may have up to 25 visits. Each visit lasts about 1 hour. Participants will be screened. They will answer questions about their medical and eye history. They will have a standard eye exam; eye drops will be used to dilate the pupils. (They may skip this exam if they have had an eye exam at the NIH within the past year.) Participants will perform eye movement tests. They will sit in front of a computer and view images that appear on the screen. They may be asked to respond to what they see by speaking, moving their hands, looking in a certain direction, or pushing a button. Their eye movements will be tracked. For some tests, participants heads may be held steady using a chinrest and head strap. For some tests, they may wear a cap fitted with cameras that use invisible lights in front of their eyes.

Participants needed: 40
Trial details
Age: 18-100Biological sex: AllType: ObservationalSponsor: National Eye Institute (NEI)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Stated willingness to comply with all study procedures and actively pay attentio... [+3]

Participant has an ocular, visual, or oculomotor problem that in the opinion of... [+2]

Status: Not yet recruiting

Restoring Vascular and Insulin Function To Augment Anti-Amyloid Therapy in Alzheimer's Disease

The purpose of this study is to find out what effects (good and bad) the study medications (insulin or Empagliflozin) have on adults with mild memory impairment or early Alzheimer's disease who are clinically prescribed an anti-amyloid therapy compared to placebo.

Participants needed: 30
Trial details
Phase: Phase 2Age: 55-85Biological sex: AllType: InterventionalSponsor: Wake Forest University Health SciencesUpdated: Aug 25, 2026Locations: 1
Eligibility criteria

Fluent in English [+8]

A diagnosis of dementia other than Alzheimer's disease [+14]

Status: Recruiting

Survey to Determine Incarcerated Persons' Views on Surrogate Decision Making

Background: About 180,000 of the people in US prisons are over 55 years old. Aging people often cannot make medical decisions on their own. People who cannot make their own decisions must rely on a "surrogate." A surrogate is someone who helps the person's doctor make decisions for them. Researchers want to conduct a survey to ask people in prison who they would like to be their surrogates. But first, they need to find out if their survey questions are clear and easy to understand. Objective: To get imprisoned people's feedback on survey questions about surrogate decision making. Eligibility: People currently imprisoned in a US facility with access to Edovo. They must be able to read and write in English. Design: Participants will answer 26 survey questions. The questions will be on the Edovo Learn software platform. After each question, they will be asked: "Was this question clear? If not, please explain in the box below what you found unclear. Also, if you have any suggestions for how we might make the question clearer, please include them." Participants will be asked to imagine themselves in a situation where they cannot make their own medical decisions. They may skip questions or stop the survey if they want. No information that identifies them will be collected. The survey will take about 15 minutes.

Participants needed: 75,000
Trial details
Age: 18-120Biological sex: AllType: ObservationalSponsor: National Institutes of Health Clinical Center (CC)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Currently incarcerated in a United States facility with Edovo educational tablet... [+2]

Status: Not yet recruiting

Pelashield vs Xeroform

The purpose of this research study is to compare the effects (good or bad) of a new skin graft dressing (PelashieldTM) compared to the one traditionally used (Xeroform).

Participants needed: 40
Trial details
Phase: Phase 4Age: 18+Biological sex: AllType: InterventionalSponsor: Wake Forest University Health SciencesUpdated: Aug 25, 2026Locations: 1
Eligibility criteria

Undergoing split-thickness skin graft harvest, with a donor site sufficiently la... [+4]

Inability, or anticipated inability, to reliably report pain within 1hour (or in... [+9]

Status: Recruiting

Self-Supervised Constraint-Induced Movement Therapy for Stroke Recovery

The goal of this clinical trial is to learn how a partially self-supervised constraint-induced movement therapy (sCIMT) program in adults with arm and hand weakness will work after stroke. This study will look at whether the program can help people improve the use of their arm and hand after a stroke while requiring less time with a therapist. The main questions it aims to answer are: * Does the sCIMT program help people use their affected arm and hand better - after a stroke? * Do participants feel that the sCIMT program is useful, easy to follow, and a good fit for their recovery needs? * Does taking part in the sCIMT program improve participants' quality of life and daily well-being? Participants will: * Take part in a therapy program 5x/week for 2 weeks. The program is designed to help improve the use of the arm and hand affected by stroke. * Wear a mitt on the stronger hand during certain practice activities to encourage use of the weaker hand. * Complete surveys and tests before and after the program to measure arm and hand use, experiences with the program, and quality of life.

Participants needed: 12
Trial details
Age: 18-85Biological sex: AllType: InterventionalSponsor: Ohio State UniversityUpdated: Aug 25, 2026Locations: 1
Eligibility criteria

Sustained a first-time ischemic or hemorrhagic stroke ≥2 weeks prior to study en... [+6]

Excessive pain in the affected shoulder, arm, or hand as measured by a score ≥6... [+7]

Status: Recruiting

A Pivotal Clinical Study to Evaluate the MySalvia System for the Treatment of Resistant Migraine

The purpose of this pivotal clinical study is to evaluate the safety and effectiveness of the MySalvia System, a minimally invasive implantable neuromodulation therapy, for the preventive treatment of adults with resistant migraine.

Participants needed: 150
Trial details
Age: 22-84Biological sex: AllType: InterventionalSponsor: Salvia BioElectronicsUpdated: Aug 25, 2026Locations: 2
Eligibility criteria

Documented diagnosis of 1.1 migraine without aura and/or 1.2 migraine with aura... [+5]

Presence of another chronic primary or secondary headache disorder, unless the p... [+6]

Status: Not yet recruiting

AMAZE 9: A Research Study Investigating How Well Zenagamtide Tablets Help People With Excess Body Weight Lose Weight

The purpose of this clinical study is to find out if zenagamtide is safe and effective for treating people who have excess body weight. There are 2 study treatments in this study taken as oral tablets once a day. Participants will either get zenagamtide (the treatment being tested) or Placebo (treatment that has no active medicine in it). Which treatment participants get is decided by chance.

Participants needed: 950
Trial details
Phase: Phase 3Age: 18+Biological sex: AllType: InterventionalSponsor: Novo Nordisk A/SUpdated: Aug 25, 2026Locations: 37
Eligibility criteria

Male or female (sex at birth). [+1]

Glycated haemoglobin (HbA1c) more than or equal to (≥) 6.5% [48 millimoles per m... [+2]

Status: Not yet recruiting

Plasma Lipids-Dependent Vitamin E Metabolism During Dynamic Hyperlipidemia

Background: Obesity is known to lead to diseases such as diabetes and high cholesterol (or fats) in the blood (hyperlipidemia). But no one knows why. Researchers think that high levels of fat in the blood may block important nutrients, such as vitamin E, from reaching places they are needed in the body. Objective: To learn how high-fat meals affect levels of vitamin E in the blood. Eligibility: People aged 18 to 65 with high blood fat levels. Healthy volunteers are also needed. Design: Participants will have 3 or 4 clinic visits in 3 months. The last visit will require them to stay in the clinic for 2 nights. Participants will be screened. They will have a physical exam and blood tests. After this visit, all participants must stop taking any dietary supplements. Those who use them must also stop taking any drugs to lower their blood sugar and blood fats. These participants will have an extra visit for blood tests after 60 days. The next visit will include 2 imaging scans: Magnetic resonance imaging (MRI) of the abdomen. This scan will check for fat in the liver. Dual-energy X-ray absorptiometry (DEXA). This scan measures the levels of body fat. On day 1 of the clinic stay, participants will have 2 set meals, with nothing but water after 10 pm. On day 2, they will drink high-fat shakes at 8 am, noon, and 4 pm. They will have blood draws every hour for 17 hours, and then every 2 hours until 7 am. The blood will be taken from a tube inserted into a vein and left in place for the day. On day 3, they will go home.

Participants needed: 48
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: National Heart, Lung, and Blood Institute (NHLBI)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Cohort 1 [+12]

For women: pregnancy or currently breastfeeding [+21]

Status: Not yet recruiting

Hepatic Artery Infusion of Carfilzomib in Participants With Liver Metastatic Disease Previously Treated With Hepatic Artery Infusion Pump Therapy

Background: Cancers that begin in the colon, adrenal glands, or bile ducts may spread to the liver. These liver tumors are often treated using a hepatic artery infusion (HAI) pump. The HAI pump is installed in the artery that goes to the liver; drugs are administered directly to the liver through this pump. But these tumors often return after treatment. Carfilzomib (CFZ) is a drug approved to treat another kind of cancer. Researchers want to find out if this drug may be helpful when administered through the HAI pump directly to the liver for people with colon, adrenal glands, or bile duct cancer that has spread to the liver. Objective: To test the safety of carfilzomib (CFZ) delivered via a hepatic artery infusion (HAI) pump directly to the liver in people with cancer in their liver. Eligibility: People aged 18 years or older with cancers of the colon, adrenal glands, or bile ducts that spread to the liver and persist after treatment. They must have a functioning hepatic artery infusion (HAI) pump in place from previous treatment of HAI pump therapy. Design: Participants will be screened. They will have a physical exam, blood tests, imaging scans, and a test of their heart function. They will also have a test to show how the blood flows through their liver: A radioactive substance will be injected into a vein, and a special camera will take pictures of the blood flow for up to 1 hour. Participants will receive the study drug for about 6 months. They will visit the clinic once a week. Their HAI pump will be filled with the drug at each visit; the drug will slowly drain from the pump into the liver. Blood tests and imaging scans will be repeated during the study. Participants will have follow-up visits 1 and 3 months after their last dose of study drug. An optional liver biopsy (tissue sample) for research purposes may be done before the study drug is given, and again (optional) within 28 days after first receiving the study drug. Individuals may participate in the study even if they do not agree to have the biopsies done. ...

Participants needed: 20
Trial details
Phase: Phase 1Age: 18-120Biological sex: AllType: InterventionalSponsor: National Cancer Institute (NCI)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Participants must have a histologically or cytologically confirmed by pathology... [+12]

Participants with liver metastases amenable to resection. [+8]

Status: Not yet recruiting

Screening Protocol

This study is a screening evaluation for volunteers who are interested in participating in National Center for Complementary and Integrative Health (NCCIH) research studies about pain and related processes, such as emotion, mood, and decision-making. Screening may include review of medical history, physical exam, vital signs, questionnaires, blood and urine tests, and optional sensory testing to better understand pain and related symptoms. The purpose is to identify and characterize healthy volunteers and people with pain who may be eligible for future NCCIH research studies. This screening study does not test a treatment and has no formal hypothesis.

Participants needed: 10,000
Trial details
Age: 12-100Biological sex: AllType: ObservationalSponsor: National Center for Complementary and Integrative Health (NCCIH)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Stated interest in, and availability for, participating in NCCIH studies and wil... [+3]

Have active medical or psychiatric health issues that create additional and subs... [+2]

Status: Recruiting

Unified Network for Integrated Fluid Collection at Yale

UNIFY is a Yale-wide liquid biopsy master repository that prospectively collects Streck-tube blood, dried blood spots (and optional archival tissue) from Yale Cancer Center patients across all tumor types for current and future research.

Participants needed: 2,500
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Yale UniversityUpdated: Aug 25, 2026Locations: 1
Eligibility criteria

Histological or radiological evidence of a suspected or confirmed solid tumor or... [+2]

Inability to provide informed consent. [+1]

Status: Not yet recruiting

IL-15 Superagonist With or Without Vaccine in Biochemically Recurrent Prostate Cancer After Previous Stereotactic Body Radiation Therapy

Background: Biochemically recurrent prostate cancer (BCR) occurs when prostate-specific antigen (PSA) levels in the blood rise after surgery or radiation. BCR affects 30,000 to 50,000 men each year. Researchers want to know if a drug (N-803) alone or combined with a vaccine (ETBX-071) can reduce PSA in BCR prostate cancer after radiation. Objective: To test a study drug alone and combined with a vaccine in people with BCR prostate cancer who have been treated with targeted radiation to areas of recurrent prostate cancer in the past. Eligibility: People aged 18 years and older with BCR prostate cancer who have previously undergone treatment with stereotactic body radiation therapy (SBRT). Design: Participants will be screened. They will have a physical exam with blood tests. They will have tests of their heart and kidney function. They will have 3 different imaging scans of their tumors. N-803 is injected under the skin of the abdomen. ETBX-071 is injected under the skin of thigh. Participants will be divided into 2 groups: 1 group will get N-803 alone; 1 group will get both N-803 and ETBX-071. The drug or drugs will be given on the first day of 21-day treatment cycles. Participants will have 8 treatment cycles. Participants will have a follow-up visit 3 weeks after their last dose of the study drugs. Blood tests and all 3 imaging scans will be repeated. Follow-up visits will continue every 4 to 8 weeks for 5 years. These visits will include a positron emission tomography (PET) scan every 6 months.

Participants needed: 65
Trial details
Phase: Phase 2Age: 18-120Biological sex: MaleType: InterventionalSponsor: National Cancer Institute (NCI)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Histopathological confirmation of prostate adenocarcinoma by the Laboratory of P... [+18]

Human immunodeficiency virus (HIV) seropositivity [+12]

Status: Recruiting

Natural History of Trisomy 8-Associated Autoinflammatory Disease (TRIAD) and Related Disorders

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.

Participants needed: 750
Trial details
Age: 1-99Biological sex: AllType: ObservationalSponsor: National Institute of Allergy and Infectious Diseases (NIAID)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Stated willingness to comply with study requirements. [+8]

Status: Not yet recruiting

IL-12 Genetically Engineered Myeloid Cells in Participants With Relapsed, Refractory Solid Tumors

Background: Myeloid cells are a type of immune cell found in most tumors. Interleukin 12 (IL-12) is a protein that helps the immune system kill tumor cells. Researchers want to know if myeloid cells that have been genetically engineered to produce IL-12 (IL-12 GEMys) can activate the immune system to attack cancer cells in solid tumors. Objective: To test IL-12 GEMys in people with cancer. Eligibility People aged 18 years and older with cancer that returned or failed to respond to treatment. Design: Participants will be screened. They will have a physical exam with blood tests. They will have tests of their heart and lung function. They will have imaging scans of their tumors. A sample of tumor tissue may be taken. Participants will have daily injections for few days to prepare them to undergo leukapheresis: Blood will be taken from the body through a needle inserted into a vein. The blood will pass through a machine that separates out stem cells. The remaining blood will be returned to the body through a different needle. The collected stem cells will be modified in a lab to create IL-12 GEMys. Participants will check in to the hospital. They will receive drugs for 5 days to prepare their body for the treatment. Then they will have their own IL-12 GEMys infused through a needle inserted into a vein. They will stay in the hospital until they are well enough to go home. This may be 7 to 14 days or longer. Some participants may receive a second treatment with IL-12 GEMys within 2 years after the first. Participants will have follow-up visits for about 5 years. These will include imaging scans and blood tests.

Participants needed: 95
Trial details
Phase: Phase 1Age: 18-120Biological sex: AllType: InterventionalSponsor: National Cancer Institute (NCI)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Relapsed or refractory solid tumor malignancies for whom standard measures do no... [+27]

Participants with history of primary CNS tumors or leptomeningeal disease. [+15]

Status: Not yet recruiting

A Research Study Investigating How Well the Medicine Zenagamtide Helps People With Excess Body Weight Lose Weight Compared to Semaglutide

The purpose of this study is to find out if zenagamtide is safe and effective for treating participants who have excess body weight compared to treatment with semaglutide.

Participants needed: 650
Trial details
Phase: Phase 3Age: 18+Biological sex: AllType: InterventionalSponsor: Novo Nordisk A/SUpdated: Aug 25, 2026Locations: 43
Eligibility criteria

Male or female (sex at birth). [+1]

Glycated haemoglobin (HbA1c) ≥ 6.5% (48 millimoles per mole [mmol/mol]) as measu... [+2]

Status: Not yet recruiting

Docetaxel and SX-682 in Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma, Salivary Gland Carcinoma, and Advanced Prostate Cancer

Background: Head and neck cancers (HNCs) account for about 5% of all cancers worldwide. They grow in the mouth, throat, nasal cavity, or salivary glands. Prostate cancer is the most common cancer in men in the United States. Survival rates for these cancers are lower than 50% if they spread to other parts of the body or return after treatment. Better treatments are needed. Objective: To test a new drug (SX-682), combined with an approved drug (docetaxel, or DTX), in people with HNCs or prostate cancer. Eligibility People aged 18 years and older with an HNC or prostate cancer that has returned after treatment or has spread. Design: Participants will be screened. They will have blood tests, imaging scans, and a test of their heart function. A tissue sample (biopsy) of the tumor may be taken. Participants will take the study drugs in 3-week cycles. SX-682 is a tablet taken by mouth twice a day from Days 1 to 11 of each cycle. Participants will get a supply of the drug to take home. DTX is given on Day 8 of each cycle through a tube attached to a needle inserted into a vein in the arm. Participants will come to the clinic on Days 1 and 8 of every cycle. They will take both drugs for up to 6 cycles. Participants will have follow-up visits 1 week and 1 month after they finish taking the drugs. Follow-ups will continue every 3 months for 2 years. Then they will have phone or email check-ins twice a year until 5 years have passed.

Participants needed: 120
Trial details
Phase: Phase 1, Phase 2Age: 18-120Biological sex: AllType: InterventionalSponsor: National Cancer Institute (NCI)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Age >= 18 years. [+29]

History of allergic reactions attributed to compounds of similar chemical or bio... [+11]

Status: Not yet recruiting

Pulmonary Hypertension (PH) Biorepository for Translational Research

Background: Pulmonary hypertension (PH) is high blood pressure in the blood vessels of the lungs. It can lead to heart failure and death if not treated. Researchers want to create a repository of blood samples and health information collected from people with PH. They hope to use this information to find better ways to diagnose and treat PH. Objective: To collect blood samples and health information from people suspected of or diagnosed with PH. Eligibility: People aged 18 years and older who have or may have PH. Design: Researchers will collect information from participants medical records. Participants will have blood drawn from a vein. About 3 tablespoons will be collected during the study visit. The visit will last about 1 hour. Participants may choose to provide new blood samples at follow-up visits. Updated medical information may also be collected. Participants may continue to participate as long as the study is ongoing. Participants may opt out of providing new blood samples but remain in the study. All study samples will be stored at the National Institutes of Health. Health information will be stored in secure databases.

Participants needed: 1,000
Trial details
Age: 18-100Biological sex: AllType: ObservationalSponsor: National Institutes of Health Clinical Center (CC)Updated: Aug 25, 2026Locations: 3
Eligibility criteria

Provision of signed and dated informed consent form [+3]

Status: Recruiting

A Study to Assess the Safety and Effects of ABBV-1758 Following Subcutaneous or Intravenous Injections in Participants With Alzheimer's Disease

Alzheimer's disease (AD) is a progressive, irreversible neurological disorder and is the most common cause of dementia in the elderly population. Clinical symptoms of the disease may begin with occasional forgetfulness such as misplacement of items, forgetting important dates or events, and may progress to noticeable memory loss, increased confusion and agitation, and eventually, loss of independence and non-responsiveness. The purpose of this study is to test how safe ABBV-1758 is, how well it works, how the body processes it and what effects it has on the body. ABBV-1758 is an investigational drug being developed for the treatment of Alzheimer's disease. This study is conducted in 3 stages. Stage A is a multiple ascending dose study with a 1 in 5 chance (4:1 randomization) that participants are assigned to receive placebo. Stage B is a dose expansion phase, also using 4:1 randomization for ABBV-1758 or placebo. Stage C enrolls Japanese and Chinese participants with the same randomization scheme. Approximately 210 participants will be enrolled at about 55 sites in the United States, China, and Japan. Participants will receive intravenous (IV) or subcutaneous (SC) doses of ABBV-1758 or placebo once every 4 weeks (Q4W) for 24 weeks and will be followed for additional 12 weeks in the Follow-up Period. Participants will have the option of participating in a 12-month, blinded Extension Period receiving ABBV-1758 or placebo based on amyloid PET results. There may be higher treatment burden for participants in this trial compared to their standard of care due to study procedures. Participants will attend regular visits during the study at a hospital or clinic. The safety of the treatment will be checked by medical assessments, blood tests, and completing questionnaires.

Participants needed: 210
Trial details
Phase: Phase 1, Phase 2Age: 50-90Biological sex: AllType: InterventionalSponsor: AbbVieUpdated: Aug 25, 2026Locations: 12
Eligibility criteria

In regions where timely testing is feasible (e.g., results available within 4 we... [+2]

Participants with screening magnetic resonance imaging (MRI) that show evidence... [+7]

Status: Not yet recruiting

Multitargeted Recombinant Ad5 PSA/MUC-1/Brachyury-Based Immunotherapy (TriAdeno) Vaccine With IL-15 Superagonist N-803 in Participants With Clinically Localized Prostate Cancer Undergoing Active Surveillance

Background: Prostate cancer is the second most common cause of cancer-related death among men in the United States. Early-stage, low-grade prostate cancer is managed with active monitoring. However, 35% of men with this cancer will need treatment within 5 years because of tumor growth. Researchers want to know if a new vaccine that targets 3 anti-cancer proteins (TriAdeno) plus a drug (N-803) approved for bladder cancer can help stop prostate tumors from growing. Objective: To test TriAdeno and N-803 in people with early-stage prostate cancer. Eligibility: People aged 18 years and older with early-stage low- or medium-risk prostate cancer. Design: Participants will be screened. They will have a physical exam with blood tests. They will have a test of their heart function. They will have an imaging scan. They may have a rectal exam. TriAdeno is injected under the skin of the upper thigh; N-803 is injected under the skin of the abdomen. Participants will be treated in up to four 21-day cycles. They will get both injections on the first day of each cycle. Participants may opt to complete a memory aid: They may record all of their symptoms for 7 days after each injection. They may also complete a questionnaire about their prostate symptoms. Blood tests, imaging scans, and other tests will be repeated during the study. A tissue sample (biopsy) of the tumor will be collected during or after cycle 2; a second biopsy may be taken about 1 year later. Participants will have follow-up phone calls for 5 years....

Participants needed: 52
Trial details
Phase: Phase 2Age: 18-120Biological sex: MaleType: InterventionalSponsor: National Cancer Institute (NCI)Updated: Aug 25, 2026Locations: 1
Eligibility criteria

Histologically confirmed diagnosis of organ confined, low- or intermediate-risk... [+19]

Prior treatment for PCa by surgery, radiation, local ablative (i.e., cryosurgery... [+14]