22,385 matching studies

Sponsor Condition of Interest
Kimchi and Gut Health
University of California, Davis Healthy Adult Participants
The goal of this study is to learn about the effects of eating kimchi on the gut health of healthy adults in the USA. The investigators will be researching the changes in the gut microbiome, biomarkers of gut health and cardiometabolic health after consuming fermented and unfermented cabbage. The1 expand

The goal of this study is to learn about the effects of eating kimchi on the gut health of healthy adults in the USA. The investigators will be researching the changes in the gut microbiome, biomarkers of gut health and cardiometabolic health after consuming fermented and unfermented cabbage. The main questions it aims to answer are: Does eating kimchi (fermented cabbage) result in enrichment of lactic acid bacteria in the stools of participants? Does eating kimchi result in metabolic changes in the gut microbiome, biomarkers of gut and cardiometabolic health of participants? Researchers will compare a group of participants eating fermented cabbage (kimchi) daily to a group of participants eating non-fermented cabbage daily. Participants will: Eat kimchi or cabbage daily for 3 weeks. Visit the study site for brief visits up to 5 times. Have blood drawn and provide a fecal sample 2 times - at beginning and end of the 3 week study. Keep occasional records of food intake and questionnaires about any gastrointestinal symptoms that participants may have.

Type: Interventional

Start Date: Mar 2026

open study

A Study to Assess the Effectiveness and Safety of IPN10200 Over Time in Adults With Moderate to Sev1
Ipsen Moderate to Severe Glabellar Lines
The purpose of this study is to assess the effectiveness and safety of a single dose of IPN10200 compared to placebo (double-blind phase) and how well and safely repeat doses of IPN10200 work over time (open-label phase) in adult participants with moderate to severe glabellar lines. Glabellar lines1 expand

The purpose of this study is to assess the effectiveness and safety of a single dose of IPN10200 compared to placebo (double-blind phase) and how well and safely repeat doses of IPN10200 work over time (open-label phase) in adult participants with moderate to severe glabellar lines. Glabellar lines are wrinkle-like lines that appear between the eyebrows and can become more noticeable with age or repeated facial expressions. They may affect a person's appearance and confidence. All participants in the double-blind phase will receive IPN10200 or placebo during the first treatment cycle. De novo participants in the open-label phase will receive IPN10200 during the first treatment cycle. Some participants may receive additional treatment cycles with IPN10200 depending on their eligibility. There will be 3 periods in this study: - A screening period (up to 20 days) to assess whether the participant can take part, requiring at least 1 visit to the study centre. - A treatment period where participants may receive up to 4 treatment cycles. In the double-blind phase, participants receive a single treatment of IPN10200 or placebo. In the open-label phase (rollover participants from double-blind), eligible participants may receive additional cycles of IPN10200. In the open-label phase (de novo participants), participants will receive IPN10200 in the first cycle and eligible participants may receive additional cycles of IPN10200. Requires multiple visits during the first month followed by 1 visit every month. - A follow-up period (24 weeks) after the last injection where participants' health will be monitored. Participants will undergo health measurements and observation, including blood sampling, physical examinations, clinical evaluations and electrocardiograms (ECG: recording of the electrical activity of heart). They will also be asked to fill in questionnaires and keep a diary. Each participant will be in this study for up to 107 weeks. Participants may withdraw consent to participate at any time.

Type: Interventional

Start Date: Feb 2026

open study

A Clinical Study of MK-3120 in People With Bladder Cancer (MK-3120-003)
Merck Sharp & Dohme LLC Bladder Cancer Urinary Bladder Neoplasms
Researchers are looking for new ways to treat high-risk non-muscle invasive bladder cancer (HR NMIBC). NMIBC is cancer in the tissue that lines the inside of the bladder and has not spread to the bladder muscle or outside of the bladder. In standard treatment for HR NMIBC, doctors first remove the1 expand

Researchers are looking for new ways to treat high-risk non-muscle invasive bladder cancer (HR NMIBC). NMIBC is cancer in the tissue that lines the inside of the bladder and has not spread to the bladder muscle or outside of the bladder. In standard treatment for HR NMIBC, doctors first remove the tumor with a procedure called transurethral resection of the bladder tumor (TURBT). Researchers want to learn if using MK-3120, the study medicine, can treat HR NMIBC after TURBT. The goal of this study is to learn about the safety of MK-3120 and if people tolerate it.

Type: Interventional

Start Date: Dec 2025

open study

Study of S-606001 as an Add-on to Enzyme Replacement Therapy (ERT) in Participants With Late-onset1
Shionogi Pompe Disease
The purpose of this study is to evaluate the safety, pharmacodynamics (PD), and exploratory clinical efficacy of S-606001 in adult participants with LOPD as an add-on to ERT. expand

The purpose of this study is to evaluate the safety, pharmacodynamics (PD), and exploratory clinical efficacy of S-606001 in adult participants with LOPD as an add-on to ERT.

Type: Interventional

Start Date: Oct 2025

open study

A Study to Learn About the Study Medicine Called PF-07328948 in Adults With Heart Failure (BRANCH-H1
Pfizer Heart Failure
The purpose of this study is to learn about the safety and effects of the study medicine (PF-07328948) for the possible treatment of heart failure (HF). expand

The purpose of this study is to learn about the safety and effects of the study medicine (PF-07328948) for the possible treatment of heart failure (HF).

Type: Interventional

Start Date: Jun 2025

open study

A Study of MK-5684 in People With Certain Solid Tumors (MK-5684-015/OMAHA-015)
Merck Sharp & Dohme LLC Malignant Neoplasm
Researchers want to learn if MK-5684 (the study medicine) can treat breast cancer, ovarian cancer, and endometrial cancer. MK-5684, the study medicine, is designed to treat cancer by blocking the body from making steroid hormones. Researchers will compare MK-5684 to the standard treatments for eac1 expand

Researchers want to learn if MK-5684 (the study medicine) can treat breast cancer, ovarian cancer, and endometrial cancer. MK-5684, the study medicine, is designed to treat cancer by blocking the body from making steroid hormones. Researchers will compare MK-5684 to the standard treatments for each cancer type in this study. The goal of this study is to learn if people who receive MK-5684 live longer without the cancer growing or spreading compared to people who receive a standard treatment.

Type: Interventional

Start Date: Aug 2025

open study

Circadian Rhythms in Human Adipose
Mayo Clinic Obesity, Abdominal Feeding Patterns
The goal of this study is to understand the underlying circadian rhythms in subcutaneous adipose tissue of humans with our without continuous feeding and how these are altered in people who have obesity. expand

The goal of this study is to understand the underlying circadian rhythms in subcutaneous adipose tissue of humans with our without continuous feeding and how these are altered in people who have obesity.

Type: Interventional

Start Date: Jul 2021

open study

Prospective Trial Assessing Real World Outcomes Response to Pembro in Black Patients w/ NSCLC
H. Lee Moffitt Cancer Center and Research Institute Non-small Cell Lung Cancer
This is a non-registrational, cohort study enrolling eligible Black patients diagnosed with histologically or cytologically, advanced/metastatic NSCLC without known EGFR/ALK/ROS1 tumor mutations, and who are ≥ 18 years of age, ECOG performance status 0-2, and may have detectable ctDNA at baseline. expand

This is a non-registrational, cohort study enrolling eligible Black patients diagnosed with histologically or cytologically, advanced/metastatic NSCLC without known EGFR/ALK/ROS1 tumor mutations, and who are ≥ 18 years of age, ECOG performance status 0-2, and may have detectable ctDNA at baseline.

Type: Interventional

Start Date: Jun 2025

open study

Pembrolizumab With or Without Maintenance Sacituzumab Tirumotecan (Sac-TMT; MK-2870) in Metastatic1
Merck Sharp & Dohme LLC Non-small Cell Lung Cancer NSCLC
This is a phase 3 study of pembrolizumab in combination with carboplatin/taxane (paclitaxel or nab-paclitaxel) followed by pembrolizumab with or without maintenance sacituzumab tirumotecan (sac-TMT; MK-2870) in first-line treatment of metastatic squamous non-small cell lung cancer. It is hypothesiz1 expand

This is a phase 3 study of pembrolizumab in combination with carboplatin/taxane (paclitaxel or nab-paclitaxel) followed by pembrolizumab with or without maintenance sacituzumab tirumotecan (sac-TMT; MK-2870) in first-line treatment of metastatic squamous non-small cell lung cancer. It is hypothesized that pembrolizumab with maintenance sacituzumab tirumotecan is superior to pembrolizumab without sacituzumab tirumotecan maintenance with respect to overall survival (OS).

Type: Interventional

Start Date: Jun 2024

open study

A Study to Evaluate Glofitamab as a Single Agent vs. Investigator's Choice in Participants With Rel1
Hoffmann-La Roche Lymphoma
The purpose of this study is to evaluate the efficacy of glofitamab monotherapy compared with an investigator's choice of either rituximab plus bendamustine (BR), or lenalidomide with rituximab (R-Len) in patients with relapsed or refractory (R/R) mantle cell lymphoma (MCL). expand

The purpose of this study is to evaluate the efficacy of glofitamab monotherapy compared with an investigator's choice of either rituximab plus bendamustine (BR), or lenalidomide with rituximab (R-Len) in patients with relapsed or refractory (R/R) mantle cell lymphoma (MCL).

Type: Interventional

Start Date: Oct 2023

open study

Study of the Bria-IMT Regimen and CPI vs Physicians' Choice in Advanced Metastatic Breast Cancer.
BriaCell Therapeutics Corporation Breast Cancer Metastatic Breast Cancer Breast Neoplasm Breast Cancer Metastatic End Stage Cancer
This is a multicenter randomized, open label study to evaluate overall survival with the Bria-IMT regimen in combination with Checkpoint Inhibitor [Retifanlimab], versus Treatment of Patients'/Physicians' Choice (TPC) in advanced metastatic or locally recurrent breast cancer (aMBC) patients with no1 expand

This is a multicenter randomized, open label study to evaluate overall survival with the Bria-IMT regimen in combination with Checkpoint Inhibitor [Retifanlimab], versus Treatment of Patients'/Physicians' Choice (TPC) in advanced metastatic or locally recurrent breast cancer (aMBC) patients with no approved alternative therapies available.

Type: Interventional

Start Date: Dec 2023

open study

Evaluating the Addition of Adjuvant Chemotherapy to Ovarian Function Suppression Plus Endocrine The1
NRG Oncology Breast Cancer
This Phase III Trial will determine whether adjuvant chemotherapy (ACT) added to ovarian function suppression (OFS) plus endocrine therapy (ET) is superior to OFS plus ET in improving invasive breast cancer-free survival (IBCFS) among premenopausal, early- stage breast cancer (EBC) patients with es1 expand

This Phase III Trial will determine whether adjuvant chemotherapy (ACT) added to ovarian function suppression (OFS) plus endocrine therapy (ET) is superior to OFS plus ET in improving invasive breast cancer-free survival (IBCFS) among premenopausal, early- stage breast cancer (EBC) patients with estrogen receptor (ER)-positive, HER2-negative tumors and 21-gene recurrence score (RS) between 16-25 (for pN0 patients) and 0-25 (for pN1 patients).

Type: Interventional

Start Date: Aug 2023

open study

Predicting Outcomes in Nonalcoholic Steatohepatitis With Advanced Fibrosis
Virginia Commonwealth University Nonalcoholic Steatohepatitis
Nonalcoholic Steatohepatitis (NASH) is a condition with increased amount of fat, inflammation and scarring in the liver. In compensated cirrhosis, the liver is coping with this damage and maintaining its important functions. Decompensation occurs when the liver becomes unable to perform all of its1 expand

Nonalcoholic Steatohepatitis (NASH) is a condition with increased amount of fat, inflammation and scarring in the liver. In compensated cirrhosis, the liver is coping with this damage and maintaining its important functions. Decompensation occurs when the liver becomes unable to perform all of its functions adequately. Variceal hemorrhage (bleeding from abnormal vessels in the liver called varices), Ascites (abnormal build-up of fluid in the abdomen), and Encephalopathy (brain confusion as a result of the liver not being able to get rid of toxic substances) are three symptoms of liver decompensation. The purpose of this research study is to investigate better ways to routinely monitor the condition of patients with NASH with compensated cirrhosis and to better pinpoint the development of decompensation in the livers of these patients.

Type: Observational

Start Date: Apr 2023

open study

A Study to Test the Efficacy and Safety of Staccato Alprazolam in Study Participants 12 Years of Ag1
UCB Biopharma SRL Stereotypical Prolonged Seizures
The purpose of the study is to assess the success of a single administration of Staccato alprazolam compared with placebo both in rapidly terminating a seizure episode within 90 seconds and with no recurrence of seizure(s) up to 2 hours after investigational medicinal product (IMP) administration. expand

The purpose of the study is to assess the success of a single administration of Staccato alprazolam compared with placebo both in rapidly terminating a seizure episode within 90 seconds and with no recurrence of seizure(s) up to 2 hours after investigational medicinal product (IMP) administration.

Type: Interventional

Start Date: Dec 2021

open study

Belzutifan/MK-6482 for the Treatment of Advanced Pheochromocytoma/Paraganglioma (PPGL), Pancreatic1
Merck Sharp & Dohme LLC Pheochromocytoma/Paraganglioma Pancreatic Neuroendocrine Tumor Von Hippel-Lindau Disease Advanced Gastrointestinal Stromal Tumor HIF-2α Mutated Cancers
This is a study to evaluate the efficacy and safety of belzutifan monotherapy in participants with advanced pheochromocytoma/paraganglioma (PPGL), pancreatic neuroendocrine tumor (pNET), von Hippel-Lindau (VHL) disease-associated tumors, advanced wt (wild-type) gastrointestinal stromal tumor (wt GI1 expand

This is a study to evaluate the efficacy and safety of belzutifan monotherapy in participants with advanced pheochromocytoma/paraganglioma (PPGL), pancreatic neuroendocrine tumor (pNET), von Hippel-Lindau (VHL) disease-associated tumors, advanced wt (wild-type) gastrointestinal stromal tumor (wt GIST), or advanced solid tumors with hypoxia inducible factor-2 alpha (HIF-2α) related genetic alterations. The primary objective of the study is to evaluate the objective response rate (ORR) of belzutifan per response evaluation criteria in solid tumors version 1.1 (RECIST 1.1) by blinded independent central review (BICR).

Type: Interventional

Start Date: Aug 2021

open study

Natural History Study of Parathyroid Disorders
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Parathyroid Cancer Primary Hyperparathyroidism Pseudohypoparathyroidism Inheritable Bone Diseases Multiple Endocrine Neoplasia, Type 1
Background: Parathyroid disorders are very common in the general population and include disorders of parathyroid excess, deficiency, or defects in parathyroid hormone (PTH) signaling. PTH, the main secretory product of parathyroid glands is responsible for regulation of calcium-phosphate homeostas1 expand

Background: Parathyroid disorders are very common in the general population and include disorders of parathyroid excess, deficiency, or defects in parathyroid hormone (PTH) signaling. PTH, the main secretory product of parathyroid glands is responsible for regulation of calcium-phosphate homeostasis. Objective: i) To investigate the cause of parathyroid disorders ii) To describe evolution, natural history, and longitudinal trends of parathyroid and related disorders seen in syndromic presentations like multiple endocrine neoplasia, hyperparathyroidism-jaw tumor syndrome Eligibility: People ages 6 months older who have, are at risk of having, or are related to a person with a parathyroid or related disorder. Design: Participants will be screened with a review of their medical records. Participants will be seen, tested, and treated by doctors based on their condition. Their visits may be in person or via telehealth. Participants will complete questionnaires. They will answer questions about their physical, mental, and social health. Participants may give samples such as saliva, blood, urine, or stool. Participants may give cheek cell samples. They will do this using a cheek swab or by spitting into a cup. Adult participants may give a skin biopsy. For this, a small bit of skin is removed with a punch tool. Participants may have medical photos taken. If participants have surgery during the course of their regular care either at the NIH or at a different hospital or doctor s office, researchers will ask for some of the leftover tissue. Participants will be in the study as long as they are being seen by their doctor.

Type: Observational

Start Date: Nov 2021

open study

Care of the Urothelial Cancer Patient and Prospective Procurement of Urothelial Cancer Tissue
National Cancer Institute (NCI) Bladder Cancer Urinary Tract Cancer Urothelial Cancer Healthy Volunteers
Background: Urothelial cancer is cancer of the bladder, ureter, and urethra. Researchers want to better understand what changes in a person s cells and genes cause this cancer to form. This may help them find new ways to treat it. Objective: - To perform DNA sequencing to help researchers learn1 expand

Background: Urothelial cancer is cancer of the bladder, ureter, and urethra. Researchers want to better understand what changes in a person s cells and genes cause this cancer to form. This may help them find new ways to treat it. Objective: - To perform DNA sequencing to help researchers learn the differences between normal tissue and tumor tissue. Also, to learn how molecular changes - including gene changes - might help predict the course of disease and how people respond to therapy. Eligibility: - Adults age 18 and older who have or are suspected of having urothelial cancer or an inherited disorder that raises their risk of getting bladder cancer. Design: - Participants will be screened with a physical exam. Their medical records and tissue samples will be reviewed. - Eligible participants will give tissue blocks of their original tumor. The blocks will be put in a tissue bank. - Participants medical records may be reviewed. - Participants may have a medical history and physical exam. - Participants may have blood and urine tests. They may have imaging scans. They may give urine, blood, and saliva samples. These samples may be used in future research. - If participants need surgery for their cancer, researchers will keep some of the tissue (both tumor and normal tissue). The tissue may be used in future research. - Participants will go back to the Clinical Center in 6 months. They may give saliva, urine, and blood samples. After 6 months, they will be seen by their local doctor for standard post-surgical visits. - Participants will be called every 6 months to give health updates.

Type: Observational

Start Date: Nov 2015

open study

Psychological Benefits of a Normalized Camping Experience for Children With Cancer
National Cancer Institute (NCI) Pediatric Cancer
Background: - Cancer has an enormous impact on the psychological and social well-being of the family unit. The life-threatening connotations of cancer single out the ill child from his peer/family group as one who is different, and often unable to maintain a normal lifestyle. Phy1 expand

Background: - Cancer has an enormous impact on the psychological and social well-being of the family unit. The life-threatening connotations of cancer single out the ill child from his peer/family group as one who is different, and often unable to maintain a normal lifestyle. Physical sequelae of cancer and its treatment accentuate the differences between these children and their normal peers/siblings. - It is important that children with cancer be prepared to function outside of protected situations and begin to develop skills of separation and independence. For healthy children, some of these latter skills are acquired by a camping experience. Such an experience for the patient with cancer is frequently precluded by their dependence on medical facilities and the physical limitations of their activities. - The goal of this study will be to assess the short and long term benefits of the "normalized" camping experience, provided in conjunction with Special Love, Inc., on the patients and staff. In particular, we will seek to determine whether such a comprehensive experience is capable of influencing the attitudes and life experiences of patients and staff in a positive manner. Objectives: -To evaluate the impact of an enriched normalized camping experience on the quality of life of the pediatric cancer patient. In particular, attempts will be made to measure the manner in which this experience influences the child's sense of well-being and self-esteem as well as his or her relationship with parents, family, and peers. Eligibility: - Children 7-17 years of age who are currently being treated for cancer or are up to 3 years post therapy OR Young adults with cancer (YACers) 18-25 years of age who are acting as counselors at Camp Fantastic - All children/young adults will be selected for camp after careful screening by a multidisciplinary committee consisting of medical and program directors. - At the discretion of the multidisciplinary committee consisting of medical and program directors, special exceptions may be made for children with extenuating circumstances. Design: - Assessment of benefit may include interviews with children and families before, during and following camp. Observational data on the child's performance at camp will be noted. - Medical and nursing personnel will consist of staff from the Pediatric Branch at the NCI, other units within the NIH, and participating institutions. - Special Love members, the Program Director at the 4-H Center camp (site of the camp) and Pediatric Branch staff at the NCI will coordinate the camp program, taking into account the medical needs of each camper. - Every attempt will be made to provide a full agenda of age appropriate activities for the patients. - The length of the camping experience for children with cancer will be for 7 days beginning on a Sunday and extending through the following Saturday morning. Patients will be transported to the camp from the NIH Clinical Center and the Virginia hospitals by bus.

Type: Observational

Start Date: Feb 1983

open study

Study of Aerosolized Antibiotics and Pembrolizumab in Advanced Non-small Cell Lung Cancer
National Cancer Institute (NCI) Advanced Non Small Cell Lung Cancer
Background: Non-small cell lung cancer (NSCLC) can be hard to treat and is often fatal. People with NSCLC commonly have changes in the bacteria that populate their lungs. These bacterial changes may aid tumor growth. Researchers want to find out if treating the bacteria, too, can help cancer treat1 expand

Background: Non-small cell lung cancer (NSCLC) can be hard to treat and is often fatal. People with NSCLC commonly have changes in the bacteria that populate their lungs. These bacterial changes may aid tumor growth. Researchers want to find out if treating the bacteria, too, can help cancer treatment work better. Objective: To test 2 inhaled antibiotics (aztreonam and vancomycin), combined with a standard cancer treatment, in people with NSCLC. Eligibility: People aged 18 years and older with NSCLC that has returned or progressed after treatment and cannot be treated with surgery. Design: Participants will be screened. They will have a physical exam with blood tests. They may blow into a machine to test how well their lungs work. They will have imaging scans. They may need to have a small piece of tissue cut from their tumor (biopsy). Participants will be treated in six 21-day cycles. They will visit the clinic to receive a drug for cancer treatment on the first day of each cycle. This drug will be administered through a tube attached to a needle inserted into a vein in the arm. The 2 antibiotic drugs will be in the form of a fine mist that can be inhaled. Participants use a device to take these drugs at home. They will inhale aztreonam up to 3 times a day and vancomycin 1 or 2 times a day. They will take these drugs during only 3 of the treatment cycles. Biopsies and other tests will be repeated halfway through and after the study treatment. Follow-up visits will continue for 1 year after study treatment.

Type: Interventional

Start Date: Apr 2024

open study

Comprehensive Molecular and Clinical Evaluation of Pediatric and Adult MDS
National Cancer Institute (NCI) Myelodysplastic Syndromes
Background: Myelodysplastic syndromes (MDS) occur when the cells that make blood cells are abnormal. There are limited treatment options for MDS. Researchers want to learn more through this natural history study so they can develop better treatments. Objective: To study the natural course of MDS1 expand

Background: Myelodysplastic syndromes (MDS) occur when the cells that make blood cells are abnormal. There are limited treatment options for MDS. Researchers want to learn more through this natural history study so they can develop better treatments. Objective: To study the natural course of MDS and MDS/myeloproliferative neoplasms (MPN) and collect biological samples that can help researchers understand the disease. Eligibility: People with suspected or confirmed MDS or MDS/MPN. Healthy donors are also needed. They can be people who are scheduled to donate bone marrow at NIH for a relative, or they may be providing bone marrow in another study. Design: Participants will be screened with a medical history. Participants will have a physical exam. They will give blood and urine samples. They will discuss their symptoms, medications, and ability to perform their normal activities. They will complete surveys about how they are feeling. Participants will have a bone marrow biopsy. A needle will be inserted through a small cut. Bone marrow will be removed. A small piece of bone may be removed. Participants may have an optional skin biopsy. Participants may give optional saliva and stool samples. They may collect these samples at home and mail them to NIH. Participants may undergo optional apheresis. One or two needles or intravenous (IV) lines will be placed in their arm, neck, or groin veins. Blood will be removed. A machine will separate out the white cells. The rest of the blood will be returned to the participant. Participants will be contacted for follow-up once a year for up to 20 years. Healthy donors will have marrow collected for this study during their scheduled procedure with no follow-up.

Type: Observational

Start Date: Aug 2022

open study

DDAVP for Pituitary Adenoma
National Institute of Neurological Disorders and Stroke (NINDS) Cushing's Disease Pituitary Adenoma
This study is designed as a single institution trial. The study utilizes safe and clinically-validated tools for preoperative workup of patients with small pituitary tumors. DDAVP stimulation and 18F-labeled fluoro-deoxyglucose (FDG) uptake for PET-imaging will be used to detect MRI-negative pituit1 expand

This study is designed as a single institution trial. The study utilizes safe and clinically-validated tools for preoperative workup of patients with small pituitary tumors. DDAVP stimulation and 18F-labeled fluoro-deoxyglucose (FDG) uptake for PET-imaging will be used to detect MRI-negative pituitary adenomas in patients with Cushing s disease. Patients who have MRI-negative pituitary microadenomas will undergo FDG PET-imaging with DDAVP stimulation. Intravenous FDG will be given approximately four hours following DDAVP administration. Within 12 weeks after completion of the FDG high-resolution PET scan, patients will undergo surgical resection of the pituitary adenoma. Surgical and histological confirmation of adenoma location will be noted. All images will be read independently by neuroradiologists blinded to clinical and histopathological outcomes. The diagnostic and localization accuracy of PET-imaging will be assessed by comparing the PET findings with histopathology.

Type: Interventional

Start Date: Mar 2026

open study

Detection and Characterization of Host Defense Defects
National Institute of Allergy and Infectious Diseases (NIAID) Immune Defects
This protocol is designed to evaluate selected patients with documented recurrent or unusual infections and their family members for clinical and laboratory correlates of immune abnormalities. It allows long term follow up of patients with host defense defects and permits the periodic study of thei1 expand

This protocol is designed to evaluate selected patients with documented recurrent or unusual infections and their family members for clinical and laboratory correlates of immune abnormalities. It allows long term follow up of patients with host defense defects and permits the periodic study of their blood, urine, saliva, skin, stool and vaginal specimens or wound drainage from such patients or their family members for medically indicated purposes and research studies related to understanding the genetic and biochemical bases of these diseases. This protocol may help provide patients and materials for the development of therapies for these diseases. This study will: 1. Determine the biochemical and genetic causes of inherited immune diseases affecting phagocytes (white blood cells that defend against bacterial and fungal infections) 2. Try to develop better ways to diagnose and treat patients with these diseases, and to prevent, diagnose and treat their infections Patients and family members may undergo the following procedures: - A personal and family medical history, physical examination and other procedures, which may include various blood tests; urinalysis; saliva collection; imaging studies such as chest X-ray, computed tomography (CT) or magnetic resonance imaging (MRI); and lung function studies, dental examination or eye examinations, if medically indicated. - Patients who have draining wounds will have fluid collected from these wounds for biochemical study. - Tissues removed as part of medical care, such as pieces of lung, liver, or teeth, or biopsies of these tissues will be studied. - Patients who have an immune problem that investigators wish to study further will be asked to return to NIH for follow-up visits at irregular intervals, but at least every 6 months. The visits will include an updated medical history, examination directed at the particular medical problem related to the immune disorder, follow-up of abnormal tests or treatment, and collection of blood, saliva, urine, or wound fluid for study. - Patients may have genetic testing and must be willing to have specimens stored for future research. - Family members will have a medical history, saliva or urine collection, and chest X-ray or other imaging study, if medically indicated. - Normal volunteers who have had tissue biopsies or pieces of tissue removed as part of medical care, such as pieces of lung, liver, or teeth, will have these tissues studied. - NIH does not cover the cost of the initial screening visit for travel or lodging. A financial assessment may determine if the patient is eligible for financial assistance. This study does not enroll children under the age of 2. - Patients will be asked to obtain their medical records, previous test results, or imaging studies prior to the first visit.

Type: Observational

Start Date: Sep 1993

open study

Caregiving Networks Across Disease Context and the Life Course
National Human Genome Research Institute (NHGRI) Inherited Metabolic Disorders Undiagnosed Diseases Batten's Disease Tay Sachs Diabetes
Background: In the U.S., about 53 million informal, unpaid caregivers provide care to a person who is ill, is disabled, or has age-related loss of function. These caregivers may be adult children, spouses, parents, or others. The stress of providing long-term care affects caregivers health and wel1 expand

Background: In the U.S., about 53 million informal, unpaid caregivers provide care to a person who is ill, is disabled, or has age-related loss of function. These caregivers may be adult children, spouses, parents, or others. The stress of providing long-term care affects caregivers health and well-being. Researchers want to learn more about this stress and its effects. Objective: To learn how the caregiving process affects the health and well-being of caregivers over time. Eligibility: Adults aged 18 years and older who are caregivers for a person with a chronic medical condition and who have already given consent to take part in other study activities. Design: Participants will be put in different groups. They will complete some or all of the following tasks over 1 year. They may repeat these tasks once a year for up to 5 years. Participants will fill out 2 online surveys. One will ask about their health and their caregiving experience. The other will ask them to list people in their social network and their care recipient s social network who give them support. Participants will have a 2-part phone interview. It will be audio recorded. In part 1, they will be asked about the people they listed in the survey. In part 2, they will be asked about their caregiving experience and events in the care recipient s life. Participants may fill out a weeklong diary every 3 months. It will ask about their daily social activities, well-being, and stress levels. It will also ask about their thoughts and feelings about caregiving. Participants may give a blood sample each year they are in the study. ...

Type: Observational

Start Date: Sep 2022

open study

Dietary Omega-7 Palmitoleic Acid-Rich Oil on Lipoprotein Metabolism and Satiety in Adults
National Heart, Lung, and Blood Institute (NHLBI) Cardiovascular Disease
Background: Omega-7 fatty acids are found in the oil extracted from certain fish and nuts like macadamia. Palmitoleic acid is one of the most common omega-7 fatty acids. Many studies suggest that this oil is good for heart health. Researchers want to find out more about these potential benefits.1 expand

Background: Omega-7 fatty acids are found in the oil extracted from certain fish and nuts like macadamia. Palmitoleic acid is one of the most common omega-7 fatty acids. Many studies suggest that this oil is good for heart health. Researchers want to find out more about these potential benefits. Objective: To study how oil enriched with palmitoleic acid (Omega-7 oil) affects metabolism. Eligibility: Healthy adults at least 18 years old with no known history of cardiovascular disease. Subjects not allergic to fish oil and fish products Females that are not pregnant and are not planning a pregnancy during the length of the study Design: Participants will be screened with questions about their health, medical history, and medicines they take. Participants will have 4 visits over 24 weeks. The visits may include: - Blood drawn from a vein in the arm by a needle stick. Sometimes participants will have to fast before the blood draw. - Vital signs (blood pressure, heart rate, and temperature) taken - Body mass index measured - Cardio-Ankle Vascular Index test may be performed. The stiffness of the participant s arteries will be measured by reading blood pressure in the arms and legs and monitoring the heart. - Optional stool samples - Pregnancy test - A short review of participants physical activity and diet - A supply of dietary supplements to take between visits. Participants will take 4 gel capsules a day. Participants will keep a food and exercise journal Compensation will be provided to subjects that complete the study Check your eligibility for this study by clicking here: https://www.surveymonkey.com/r/DietaryOmega

Type: Interventional

Start Date: Jul 2018

open study

Natural History of Stroke: Cause and Development
National Institute of Neurological Disorders and Stroke (NINDS) Brain Disease Ischemic Attack, Transient Cerebrovascular Accident Cerebrovascular Disorder Vascular Diseases
The purpose of this study is to learn more about stroke and obtain information that may serve as the basis for future investigations. It will 1) establish a registry of patients with cerebrovascular disease (stroke); 2) characterize the natural history of acute stroke and transient ischemic attacks1 expand

The purpose of this study is to learn more about stroke and obtain information that may serve as the basis for future investigations. It will 1) establish a registry of patients with cerebrovascular disease (stroke); 2) characterize the natural history of acute stroke and transient ischemic attacks (TIA)-an interruption of blood flow to the brain that causes stroke symptoms for a short period of time); and 3) evaluate the data to generate ideas for future studies. Patients 18 years of age or older with suspected acute stroke or TIA may be eligible for this study. Subjects will be recruited from patients who present with stroke at the emergency department of Suburban Hospital in Bethesda, Maryland. The study will gather data collected from diagnostic and laboratory tests the patient undergoes as part of standard medical care, including findings of medical and neurological examinations and other tests. In addition, studies will be done for research purposes only to gather data about stroke and TIA. These may include the following: - Blood and urine tests not more than 2 tablespoons of blood will be drawn for various tests. - Electrocardiogram (EKG) (heart tracing)-electrodes placed on the chest wall detect the heartbeat and heart rhythm. - Computed tomography (CT) scan of the head-specialized X-rays are used to obtain images of the brain. - Magnetic resonance imaging (MRI) of the brain-a strong magnetic field and radio waves are used to produce images that provide information about the brain tissue and blood vessels. - Transcranial Doppler (TCD)-sound waves are used to image the arteries of the brain and neck. - Echocardiogram-sound waves are used to image the heart and evaluate heart function. Patients may be asked to return to Suburban Hospital for follow-up testing in 1, 3, and/or 12 months, when some of these tests may be repeated to assess changes over time

Type: Observational

Start Date: Jan 2001

open study