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Намерени 206 изпитвания за "diabetes" Стр. 6 от 11

Набира участници Фаза 3

EASi-KIDNEY™ (The Studies of Heart & Kidney Protection With BI 690517 in Combination With Empagliflozin)

Kidney Disease, Chronic

This study is open to adults with chronic kidney disease at risk of progression. People with and without type 2 diabetes can take part in this study. The study is open to people who take other medicines called angiotensin converting enzyme inhibitors (ACEi) or angiotensin receptor blockers (ARB). People who already take empagliflozin or any other sodium-glucose cotransporter-2 inhibitor (SGLT2i) can also join. The study is also open to people who currently do not take any of these treatments. The purpose of this study is to find out whether a medicine called BI 690517 helps people with chronic kidney disease when taken in combination with a study medicine called empagliflozin. Worsening of kidney function increases the risk for kidney failure, cardiovascular disease, and heart disease. This study has 2 parts. In the first part, participants get empagliflozin or placebo matching BI 690517 for at least 6 weeks. Participants continue taking ACEi or ARB throughout the study if such treatments are indicated. In the second part, participants are divided into 2 groups by chance. One group takes BI 690517 tablets and the other group takes placebo tablets. Placebo tablets look like BI 690517 tablets but do not contain any medicine. Participants take 1 tablet once a day in addition to empagliflozin for the duration of the study. The doctors document when participants experience worsening of their kidney disease, go to hospital due to heart failure, or die of cardiovascular problems during the study. The time to these events is compared between the 2 treatment groups to see whether the treatment works. The study continues until the required number of events have occurred which is about 3 to 4 years. During this time, participants visit the study site about 4 times within the first 6 months. Then they visit the study site every 6 months. At the visits, doctors regularly check participants' health, take blood and urine samples, measure blood pressure and weight, check kidney function, and take note of any unwanted effects.

Начало: 13.08.2024 Край: 30.08.2028 Възраст: от 18 г. Лечение

Argentina, Australia, Brazil +14 Boehringer Ingelheim NCT06531824

Набира участници

Effect of Changes in Carbohydrate Intake Patterns on Glucose Control in Patients With Type 1 Diabetes

Type 1 Diabetes Diet Intervention Glucose Control

The blood glucose fluctuates greatly in T1DM patients, especially in the middle and late stages of the disease, and carbohydrate (CHO) is the main determinant of postprandial glucose response (PGR). Based on the previous investigation to understand how nutritional habits affect blood glucose control, we will conduct dietary intervention studies in T1DM patients to explore whether the adjustment of dietary pattern is beneficial to blood glucose control, and further explore the relevant mechanism through the detection of related metabolic indicators.

Начало: 01.08.2024 Край: 31.12.2027 Възраст: 18–70 г.

China Yang Tao NCT06273631

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Body Surface Gastric Mapping Vs Gastric Emptying Scintigraphy on Clinical Management in Gastroparesis

Gastroparesis

Gastroparesis is a chronic and debilitating gastric disease associated with poor quality of life, psychological distress, frequent hospitalisations, and high healthcare utilization and associated costs. It is defined by persistent upper gastrointestinal symptoms and delayed gastric emptying with no mechanical gastric outlet obstruction. Gastric emptying scintigraphy (GES) is the current gold standard for diagnosing gastroparesis but its clinical utility is currently being questioned. Current management strategies have often been found to be ineffective, largely due to an incomplete understanding of the disease's pathophysiology. There is a critical need for more advanced diagnostic testing that can better diagnose patients and guide personalized targeted therapy. Body surface gastric mapping (BSGM) using Gastric Alimetry (Alimetry Ltd., New Zealand) is a new FDA-cleared medical device to assess gastric function by non-invasively assessing gastric motility using simultaneous high-resolution electrogastrography and symptom profiling. BSGM has demonstrated clinical utility in the assessment of gastric function through patient phenotyping in a variety of cohorts, including patients with nausea and vomiting disorders, diabetes, delayed gastric emptying, and post-gastric surgery. Previous research revealed that the detection of gastric motility abnormality rates through patient phenotyping were higher using Gastric Alimetry compared to GES (43% vs 23%). Clinical application of these phenotypes has also aided in changing management decisions, which reduced healthcare utilization and associated costs. However, how GES and BSGM test results differentially influence clinical management in patients is uncertain. This exploratory pilot study proposes a two-arm, prospective trial to assess whether BSGM-guided care could change clinical outcomes compared to the standard of care (GES) in patients with suspected gastroparesis. The trial consists of two phases. Phase 1 involves participants separately undertaking a GES and BSGM test. Based on these results, the referring clinician will devise management plans for treatment using a standardized form: 1) unblinded to one test (GES or BSGM) but blinded to the other test; and 2) unblinded to both tests (GES + BSGM). They will be asked to recommend any changes to interventions (medications, diet, endoscopic/surgical referral or other) and additional testing. In phase 2, those in Phase 1 will undergo BSGM-guided care based on their combined management plan (GES + BSGM) and followed up over a 12 month period. A separate set of participants will be recruited to undergo standard of care (GES only) in parallel with Phase 1 participants. After 12 months, those on the standard of care arm will be crossed over to BSGM-guided care, undergo a BSGM test, treated according to the new management plan, and followed up over 6 months. Questionnaires will assess symptoms, quality of life, health psychology, sleep, and work impact. If validated, this may change clinical practice by reducing the need for invasive or radioactive-based procedures to diagnose these patients and facilitating a more targeted treatment approach.

Начало: 03.05.2024 Край: 03.12.2026 Възраст: от 18 г. Диагностика

Australia University of Western Sydney NCT06411574

Набира участници Фаза 4

Empagliflozin Treatment in Kidney Transplant Recipients

Kidney Transplant Chronic Kidney Disease

Kidney transplantation improves the health and quality of life for those Veterans with end stage kidney disease (ESKD). While early patient and graft survival are excellent, long-term outcomes continue to be challenging. Patient death with existing kidney graft function occurs in about half of all recipients over time. This is primarily due to the development of cardiovascular disease in a patient population with multiple preexisting cardiac disease risk factors. There has been little progress in improving outcomes in this area for over two decades. Recent studies in chronic kidney disease (CKD) patients using SGLT2 inhibitors (SGLT2i), regardless of the presence of type 2 diabetes mellitus (T2DM), results in both kidney protective and cardiac protective impacts and improved patient outcomes. However, kidney transplant recipients (KTRs) were excluded from these clinical trials due to concerns that these agents promote infection, diminish graft function, and may alter immunosuppressive drug levels that are the mainstay of patient's transplant therapy. There are limited published data of SGLT2i treatment of selected KTRs.

Начало: 05.04.2024 Край: 31.03.2030 Възраст: от 19 г.

United States VA Office of Research and Development NCT06013865

Набира участници Фаза 1/2

Feasibility of Semaglutide in Advanced Lung Disease

Obesity Interstitial Lung Disease Chronic Obstructive Pulmonary Disease Sarcoidosis, Pulmonary +1

The goal of this clinical trial is to learn whether semaglutide, an FDA-approved treatment for diabetes and obesity, is feasible and tolerable in patients with advanced lung disease. The main question\[s\] it aims to answer are: 1. Are patients with advanced lung disease able to tolerate semaglutide therapy? 2. Are we able to titrate semaglutide therapy to a target weight? Participants will be asked to perform pulmonary function, physical function and body composition testing, as well as a blood draw before and after 12-weeks of semaglutide therapy. While on therapy, subjects will be surveyed regarding any adverse events or side effects.

Начало: 29.01.2024 Край: 28.12.2027 Възраст: 18–80 г.

United States University of Pennsylvania NCT05746039

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Virtual perI-/Menopause Registry of AusTrALia

Menopause Perimenopausal Disorder Postmenopausal Symptoms Health Knowledge, Attitudes, Practice +16

13 million (50.7%) Australians are born with ovaries, 14% (\~3 million) are currently aged 40-59 yrs, \& all such who live to midlife will experience menopause, defined as \>12 months without a period. Peri-menopause (peri), typically occurs 5 yrs before menopause as hormone levels decrease. As with oestrogen, peri symptoms can affect every bodily system; e.g. depression/anxiety, diminished mental function, irregular periods, hot flushes, sleep problems, vaginal atrophy \& urinary urgency. These symptoms are linked with lower quality of life \& significantly higher work impairment; a third experiencing symptoms so severe as to impede daily life \& increase risk of suicide. Lifetime increased risks of diabetes, heart disease, osteoporosis \& dementia are also associated with menopause, yet it remains disconcertingly poorly studied. The investigators propose to create a world-first, cutting-edge, consumer-driven, Virtual peri-/menopause registry of AusTrALia (VITAL). The unique design will enable consumers to determine VITAL's questions, encourage secure revelation of private data e.g. vaginal \& mental health symptoms, \& to direct priorities for research, education, \& health service improvements. VITAL will thus deliver optimal assessments of incidence, prevalence \& impact. The participating consumers, researchers, clinical specialists, policy makers, \& modern virtual data infrastructure enable this unique \& innovative registry design, future translation to improved community health, \& promote awareness \& collaborative synergies. Leveraging the investigators' critical range of expertise \& ongoing feedback opportunities for both participants \& stakeholder partnerships, the investigators will create a ground-breaking platform that: * empowers the consumer voice and priorities, * enables peri-/menopause research to extend beyond existing niche focuses, * evidences the true impact of peri-/menopause across the nation, * evolves healthcare services and outcomes, \& * educates community, clinicians, \& policy-makers. After Australian registry establishment, the investigators will expand VITAL to mirror it in other nations while still protecting individual's data the right way, but so all can learn \& apply the best aspects of care from across the world.

Начало: 03.08.2023 Край: 01.08.2073 Възраст: от 18 г.

Australia Bespoke Clinical Research NCT06487130

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Comparison of the Therapeutic Effects of VR and VR + Metformin in the Treatment of Cesarean Section Scar Defect

Defect

Cesarean section scar defect (CSD) is a novel recognized cause of postmenstrual abnormal uterine bleeding in women. No clinical guidelines have been issued for the management of CSD. The investigators have previously demonstrated that vaginal repair of CSD was an relative effective treatment of CSD. However, only 28.2% of the CSD patients normalized to less than 7 days of menstruation, whereas 51.2% of women had 7 to 10 days of menstruation at 6 months post vaginal repair. The previous research suggested that the occurrence of CSD may be related to the aging phenotype of the myometrium. Metformin, as a classic diabetes treatment drug, has an important position in anti-aging therapy. Therefore, the randomized study was designed to evaluate whether the application of metformin in combination with vaginal repair could achieve better clinical effects than those achieved by vaginal CSD repair alone.

Начало: 15.04.2023 Край: 30.06.2027 Възраст: 18–40 г.

China Xinhua Hospital, Shanghai Jiao Tong University School o NCT05205317

Набира участници Фаза 3

Implementation of Metformin theraPy to Ease Decline of Kidney Function in Polycystic Kidney Disease (IMPEDE-PKD)

Autosomal Dominant Polycystic Kidney Disease

This study will investigate if a medication (metformin) widely used in the treatment of diabetes could be re-purposed for the treatment of patients with a diagnosis of early stage ADPKD to slow the rate of kidney function decline, reducing morbidity and mortality and improving the quality of life for ADPKD patients.

Начало: 29.11.2022 Край: 01.12.2030 Възраст: 18–70 г. Лечение

Australia, New Zealand, United Kingdom The University of Queensland NCT04939935

Набира участници

A Natural History Study of Metabolic Sizing in Health and Disease

Metabolic Disorders Cancer Chronic Kidney Disease Diabetes +1

Background: Scientists have long used simple measures (such as height and weight) to estimate how much a person s body uses food (calories) as energy, as commonly called the metabolic rate. But metabolism varies among people with similar body sizes. Scientists now believe the old formulas for estimating metabolic rates may not work well for all people. Researchers want to find more accurate ways to measure a person s metabolism. Objective: This natural history study will examine the relationships between metabolism, body composition, and body surface area in a wide range of people. Eligibility: Healthy children and adults aged 2 years or older. Also, people aged 2 years or older with conditions that may alter metabolism. These may include diabetes, obesity, renal disease, or cancer. Design: Participants will spend 2 days and 1 night in the hospital. They will provide a medical history and answer questions about their activity levels, the foods they eat, and their lifestyle. They will also eat a special diet. Participants will undergo many tests: They will lie in a bed with a clear hood covering their head for 30 to 45 minutes to measure the gases in their breath. They will lie on a padded table for about 15 minutes while their body is scanned. They will stand on a platform while a 3D scanner measures their body. They will have a test to measure how fast an electric signal moves through their body. They will grip an instrument to measure the strength of their hands. They will drink salty water and provide blood and urine samples. Participants may be invited to return for these 2-day visits up to 8 times per year. Return visits must be at least 2 weeks apart.

Начало: 25.10.2022 Край: 01.07.2031 Възраст: 2–99 г.

United States National Institute of Diabetes and Digestive and Kidney NCT05398783

Набира участници Фаза 2/3

Combined Dose-Finding and CV Outcomes Study With CSL300 (Clazakizumab) in Adult Subjects With ESKD Undergoing Dialysis

Atherosclerotic Cardiovascular Disease End Stage Kidney Disease Atherosclerotic Cardiovascular Disease in Patients With ESKD

This is a 2-part (phase 2b/3) prospective, interventional, multicenter, randomized, double-blind, placebo-controlled study. Part 1 (phase 2b) is a dose-finding study for CSL300 vs placebo. Part 2 (phase 3) aims to assess the efficacy of CSL300 on cardiovascular (CV) outcomes and safety in subjects with systemic inflammation and either atherosclerotic cardiovascular disease (ASCVD) or diabetes with end stage kidney disease (ESKD) undergoing maintenance dialysis.

Начало: 21.10.2022 Край: 27.09.2029 Възраст: от 18 г. Поддържаща грижа

Argentina, Australia, Belgium +27 CSL Behring NCT05485961

Набира участници Фаза 1/2

Evexomostat Plus PI3K or AKT Inhibitor and Fulvestrant in Patients With a PI3K Alteration and HR+/Her2- Breast Cancer

HR+/HER2-negative Breast Cancer Metastatic Breast Cancer

This is a Phase 1b/2, open-label, parallel-arms pilot study in men and post-menopausal women with hormone receptor positive (HR+), HER2- advanced or metastatic breast cancer with an alteration in the PI3K pathway, including a mutation of the PIK3CA gene, PTEN loss, or AKT1 mutation, designed to determine the safety of evexomostat (SDX-7320) plus standard of care treatment alpelisib (BYL-719) or capivasertib and fulvestrant (each combined, the 'triplet therapy'), to measure the severity and number of hyperglycemic events, and to assess clinical, anti-tumor benefit of the triplet therapy. The purpose of this study is: * to characterize the safety of the triplet drug combination consisting of either alpelisib or capivasertib (per the treating oncologist's choice) and fulvestrant plus evexomostat, * to test whether evexomostat, when given in combination with either alpelisib or capivasertib and fulvestrant will reduce the number and severity of hyperglycemic events and/or reduce the number or dose of anti-diabetic medications needed to control the hyperglycemia for metabolically normal patients and those deemed at risk for capivasertib and alpelisib-induced hyperglycemia (insulin resistance, as measured by HOMA-IR, baseline elevated HbA1c or well-controlled type 2 diabetes), and * to assess preliminary anti-tumor efficacy for each combination and changes in key biomarkers and quality of life in this patient population.

Начало: 26.08.2022 Край: 01.03.2027 Възраст: от 18 г.

United States SynDevRx, Inc. NCT05455619

Набира участници Фаза 3

MetfOrmin BenefIts Lower Extremities With Intermittent Claudication

Intermittent Claudication

Peripheral arterial disease (PAD) affects over 20% of aged adults and is very common among Veterans due significant tobacco use. PAD is due to the progressive blockage of peripheral arteries, predominantly to the legs, and results in intermittent claudication (IC) or recurrent muscle pain with activity secondary to insufficient blood supply. Those with PAD and IC experience a progressive decline in walking and poor quality of life. There is no effective medical treatment for PAD and IC. Metformin is a safe and effective treatment for Type 2 diabetes but it can also reduce inflammation, oxidative stress, and improve energy requirements as well as improve blood flow to the legs. Therefore, the investigators will test the ability of Metformin to improve overall functional status, reduce PAD progression, and reduce systemic inflammation in Veterans suffering from PAD and IC in a randomized, placebo controlled trial: Metformin BenefIts Lower Extremities with Intermittent Claudication (MOBILE IC) Trial. The success of this trial may identify a safe and effective treatment for PAD and IC.

Начало: 01.03.2022 Край: 28.02.2032 Възраст: 35–89 г.

United States VA Office of Research and Development NCT05132439

Набира участници Фаза 3

Proact: A Study of REACT in Subjects With Type 2 Diabetes Mellitus and Chronic Kidney Disease

Type 2 Diabetes Mellitus Chronic Kidney Diseases

The purpose of this study is to assess the safety and efficacy of up to 2 REACT/rilparencel injections in participants with T2DM and CKD.

Начало: 05.01.2022 Край: 01.12.2029 Възраст: 30–80 г. Лечение

Australia, Canada, Mexico +4 Prokidney NCT05099770

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TAS Test: Online Motor-cognitive Tests for Early Detection of Alzheimer's Disease

Alzheimer Disease Dementia Age-related Cognitive Decline

Global dementia prevalence is rising. Alzheimer's disease (AD), the most common cause, has devastating effects on people's quality of life. AD has a preclinical (pre-AD) period of 10-20 years when brain pathology silently progresses before any cognitive symptoms appear. Current tests for pre-AD are invasive, costly and unsuitable for screening at population level. Similar to screening for pre-diabetes and carcinoma in situ, it is important to detect AD at the preclinical stage in order to offer early interventions before the pathology progresses to the irrerversible degenerative stage. In the study, research will develop a new scalable test (TAS Test) by combining two innovative ideas: hand-movement tests to detect pre-AD \>10 years before cognitive symptoms begin; and computer vision so people can "self-test" online using home computers. This unique approach builds on recent discoveries that hand-movement patterns change in pre-AD. The research team will use exquisitely precise computer vision methods to automatically analyse movement data from thousands of participants, and combine this with machine learning of overall motor-cognitive performance. The project team has access to 3 well-phenotyped cohorts, \>10,000 existing participants and a cutting-edge assay for a blood AD biomarker, ptau181. The research team will develop a TAS Test algorithm to classify hand-movement and cognitive test data for pre-AD risk (p-taua181 levels) and determine TAS Test's precision to prospectively predict 5-year risks of cognitive decline and AD.

Начало: 05.03.2021 Край: 01.12.2030 Възраст: от 50 г.

Australia University of Tasmania NCT05194787

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Study of Endocrine-Related Conditions and Physiology

Endocrine Disease

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

Начало: 27.03.2019 Край: 01.01.2036 Възраст: 18–90 г.

United States National Institute of Diabetes and Digestive and Kidney NCT03867448

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Taste Bud-Derived Stem Cells in Humans

Diabetes

Background: Stem cells are found in body tissues. They can regenerate into more of the same cells or become other types of cell. Researchers want to use stem cells from taste buds to try to make cells that secrete insulin. Taste buds are found mostly on the tip and sides of the tongue. Researchers also want to study if the number of taste buds and stem cells decrease as people age. They will remove small pieces of tongue tissue (about the size of a pen tip). The taste buds will grow back. It is hoped that studying taste bud stem cells can lead to new diabetes treatments. Objectives: To see if stem cells from taste buds can be isolated in humans. Eligibility: Healthy adults at least 18 years old Design: Participants will be screened with: * Medical history * Physical exam * Blood and urine tests * Tongue photograph and mouth inspection. Food coloring will be applied to the tongue. Participants will have 1 study visit. They will not eat or drink anything 8 hours before. * They will give blood and urine samples. * They will have a tongue biopsy. Vital signs will be checked. The inside of the mouth will be examined. The tongue may be cleaned. The tongue will be numbed. Five small pieces of tissue will be taken with a small scissor. Any bleeding will be blotted with cotton and should stop in minutes. * Participants will be monitored for about 30 minutes. They will get a snack or meal. * They will be told how to take care of the tongue for the rest of the day. Participants will be called a week later to see how the

Начало: 18.12.2017 Край: 31.12.2026 Възраст: 18–120 г.

United States National Institute on Aging (NIA) NCT03366168

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Evaluation of Adults With Endocrine and Metabolic-Related Conditions

Endocrine Diseases

Background: There are many endocrine and metabolic-related conditions. Two well-known disorders include diabetes and thyroid disease. Some of these diseases are caused by a change in genes. Researchers want to identify the genes involved in these disorders. They hope this will help them learn more about these diseases. Objectives: To learn more about conditions that affect the hormone-secreting glands (endocrine glands) in adults. To train doctors to diagnose and treat people with endocrine or metabolic conditions. Eligibility: Adults age 18 years and older with a known or suspected endocrine disorder. Relatives ages 18 years and older. Doctors will review all requests and available medical records to determine final eligibility for the protocol. Design: Participants will have a medical history and physical exam. Most participants will have 1 visit, and may have follow up visits if necessary. They may have tests, surgery, or other procedures to help diagnose or treat their condition. These could include: * Blood, urine, and saliva tests * Imaging tests. These may include X-ray, ultrasound, or scans. * Sleep study * Medical photographs * Visits with other specialists at NIH Participants will provide blood, urine, saliva, or tissue samples. Some of these samples may be stored in the freezer for future studies. Participants may be asked to participate in genetic testing. They will give a blood or saliva sample for this.

Начало: 09.07.2016 Край: 31.12.2029 Възраст: 18–100 г.

United States National Institute of Diabetes and Digestive and Kidney NCT02830308

Набира участници Фаза 4

NT-proBNP Selected Prevention of Cardiac Events in Diabetic Patients

Heart Diseases Diabetes Mellitus, Type 2

Purpose and rationale The purpose of this study is to evaluate the effect of high dose Renin-Angiotensin System (RAS)-antagonists and beta-blocker treatment for the primary prevention of cardiac events in a population of patients with Type 2 diabetes mellitus (T2DM) with no evidence of a preexisting cardiac disease. An additional aim is to demonstrate an interaction between concentrations of amino-terminal pro-B type natriuretic peptide (NT-proBNP as a surrogate of imminent cardiac risk) and treatment effects and the economic impact of the intervention overall and in the biomarker stratified subgroups. Primary objective Superiority of high dose treatment with RAS-antagonists and beta-blockers compared to conventional therapy regarding the reduction of unplanned hospitalization or death due to a cardiac event in T2DM patients with a NT-proBNP \> 125pg/ml. There is an additional eye-substudy for Viennese sites only. The purpose of this sub-study is to evaluate the effect of high dose RAS-antagonists and beta blocker treatment on early subclinical signs of diabetic micro-angiopathy and neuropathy. An additional aim will be the evaluation of the possible impact of the cardiovascular risk factor NT-proBNP on the onset and progression of diabetic retinopathy.

Начало: 01.02.2016 Край: 01.12.2026 Възраст: от 18 г. Лечение

Austria, Netherlands, New Zealand +2 Martin Huelsmann NCT02817360

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Urinary Vitamin C Loss in Diabetic Subjects

Diabetes

Several studies have reported that diabetic subjects have lower plasma vitamin C concentrations than non-diabetic subjects. Although urinary vitamin C loss in diabetic subjects was reported to be increased in two studies, these are difficult to interpret due to lack of controlled vitamin C intake, inadequate sampling, lack of control subjects, or methodology uncertainties in vitamin C assay and sample processing. Consequently, it is unclear whether diabetic subjects truly have both low plasma and high urine vitamin C concentrations. We propose that low plasma vitamin C concentrations in diabetic subjects are due in part to inappropriate renal loss of vitamin C in these subjects but not in healthy controls. We will study nondiabetic controls and cohorts with diabetes. Vitamin C concentrations in plasma, RBCs, and urine will be measured in outpatients. In those willing to be admitted to the Clinical Center, we will measure vitamin C pharmacokinetics to determine the relative bioavailability for vitamin C in individuals with and without abnormal urinary loss of vitamin C (or renal leak). Single nucleotide polymorphisms (SNPs) will be determined in genomic DNA responsible for the two proteins mediating sodium dependent vitamin C transport, SVCT1 and SVCT2. We will also explore mechanisms underlying abnormal urinary vitamin C loss....

Начало: 11.04.2006 Възраст: 18–65 г.

United States National Institute of Diabetes and Digestive and Kidney NCT00071526

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Chronic Kidney Disease in Children Prospective Cohort Study (CKiD)

Chronic Kidney Disease

The Division of Kidney, Urologic, and Hematologic Diseases (DKUHD) of the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), in collaboration with the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) and the National Heart, Lung and Blood Institute (NHLBI) funded a cooperative agreement including two Clinical Coordinating Centers (at Children's Hospital of Philadelphia and at Children's Mercy Hospital in Kansas City), a central biochemistry laboratory (at the University of Minnesota) and a Data Coordinating Center (at Johns Hopkins School of Public Health) to conduct a prospective epidemiological study of children with chronic kidney disease (CKD).

Начало: 01.10.2003 Край: 01.07.2028 Възраст: 6–22 г.

United States Johns Hopkins Bloomberg School of Public Health NCT00327860

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