Clinical trials: Vitamin Deficiencies
Parkinson Disease
Effect of Vitamin D3 Supplementation on Cardiac Autonomic Nerve Function in Male Parkinson's Disease Patients With Hypovitaminosis D
The goal of this clinical trial is to see the effect of vitamin D3 supplementation on cardiac autonomic nerve function in male Parkinson's disease patients with hypovitaminosis D Main questions it aims to answer are: 1.
- Trial name
- NCT07084597
- Testing
- Vitamin D
- Where
- Bangladesh
- Volunteers
- 15 people
- Sponsor
- Bangladesh Medical University
Vitamin D Insufficiency, Vitamin D Deficiency
Vitamin D Inadequacy in Rural Populations, Evaluation of Correction by Food Supplementation
The purpose of the research is to describe vitamin D levels and bone status in a rural Wisconsin population. It is probable that individuals of varying age and ethnicity require different amounts of D to achieve optimal status.
- Trial name
- NCT00690417
- Testing
- Cholecalciferol (vitamin D3)
- Where
- United States
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Vitamin D Deficiency
Vitamin D Status in Hemodialysis Transplant Candidates and Living Donors
Vitamin D, beyond its classical role in calcium and phosphate metabolism, is recognized as an important regulator of immune function and inflammation.
- Trial name
- NCT07409623
- Testing
- VITAMIN D LEVEL
- Where
- Iran
- Volunteers
- 552 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
Hypertensive Disorders of Pregnancy
Vitamin D and Hypertensive Disorders of Pregnancy
The purpose of this study is to further investigate the association between vitamin D deficiency/insufficiency and hypertensive disorders of pregnancy by studying the impact of screening for vitamin D deficiency and…
- Trial name
- NCT07017920
- Testing
- Vitamin D Levels measurement
- Volunteers
- 594 people
- Sponsor
- TriHealth Inc.
Chronic Kidney Disease
Different Effects of Non-calcium Phosphate Binders on Serum Calcium
Sevelamer hydrochloride (SE) can increase intestinal calcium absorption in contrast to lanthanum carbonate (LA). Study compared effect of LA and SE on serum and urine phosphate and calcium, and hormones regulating mineral-bone…
- Trial name
- NCT03451019
- Testing
- Sevelamer Hydrochloride, Lanthanum Carbonate
- Where
- Poland
- Volunteers
- 34 people
- Sponsor
- Medical University of Lodz
Multiple Sclerosis, Vitamin D Deficiency
Safety and Immunologic Effect of Low Dose Versus High Dose Vitamin D3 in Multiple Sclerosis
The purpose of this study is to determine the safety and the immunologic effects of supplementation with low-dose and high-dose cholecalciferol (vitamin D3) in patients with multiple sclerosis.
- Trial name
- NCT01024777
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Johns Hopkins University
Vitamin D Deficiency, Obstructive Sleep Apnea
Vitamin D Status in Obstructive Sleep Apnea With and Without Comorbidities
This retrospective observational study evaluates the relationship between vitamin D status and obstructive sleep apnea (OSA) in adults.
- Trial name
- NCT07788391
- Where
- Turkey (Türkiye)
- Volunteers
- 269 people, healthy volunteers welcome
- Sponsor
- Hisar Intercontinental Hospital
Heart Failure, Vitamin D Deficiency
Vitamin D Supplementation in Chronic Stable Heart Failure
In cross-sectional and prospective cohort studies, vitamin D deficiency is associated with increased mortality, cardiovascular events including sudden cardiac death and stroke, diabetes, hypertension and impaired function of the…
- Trial name
- VITD-HI (NCT01292720)
- Testing
- Cholecalciferol
- Where
- Austria
- Volunteers
- 29 people
- Sponsor
- Medical University of Graz
Type 2 Diabetes Mellitus, Vitamin D Deficiency
Effect of Vitamin D Supplementation on Glucose Tolerance in Subjects at Risk for Diabetes With Low Vitamin D.
Type 2 diabetes (T2D) is an increasingly common and serious condition. Studies show that low vitamin D levels are associated with increased diabetes risk and that vitamin D may protect against diabetes by reducing chronic…
- Trial name
- EVIDENCE (NCT01726777)
- Testing
- Control, Vitamin D
- Where
- 3 sites in Canada
- Volunteers
- 71 people
- Sponsor
- University of Toronto
Heart Failure
A Trial of Thiamin Supplementation in Patients With Heart Failure
Background: Patients with heart failure (HF) are at increased risk of developing thiamin deficiency (TD). Thiamin (vitamin B1) is required for the production of energy and therefore TD may contribute to the energy depletion…
- Trial name
- NCT00959075
- Testing
- Vitamin B1
- Where
- Canada
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Unity Health Toronto
X-linked Hypophosphatemia, Hypophosphatemic Rickets
Calcitriol Monotherapy for X-Linked Hypophosphatemia
Children and adults with XLH recruited will be treated with calcitriol alone (without phosphate supplementation) for one year, during which the calcitriol dose will be escalated during the first 3 months of therapy.
- Conditions
- X-linked Hypophosphatemia, Hypophosphatemic Rickets, Hypophosphatemic Rickets, X-Linked Dominant
- Trial name
- NCT03748966
- Testing
- Calcitriol
- Where
- United States
- Volunteers
- 16 people
- Sponsor
- Massachusetts General Hospital
Vitamin D Deficiency
The Effect of Vitamin D and Exercise on Balance in Postmenopausal Women
In recent years, skeletal and nonskeletal effects of vitamin D has been studied. One of the effects of it was balance and fall prevention. However, these studies were performed on older patients who had not vitamin D deficiency.
- Trial name
- NCT03608488
- Testing
- Vitamin D, Exercise
- Where
- Turkey (Türkiye)
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey
End Stage Kidney Disease (ESKD), Hemodialysis
Medium Cut-Off and High-Flux Membranes on Mineral and Bone Metabolism in Hemodialysis Patients
This study aims to compare the effects of medium cut-off (MCO) and high-flux hemodialysis membranes on mineral and bone metabolism biomarkers in patients receiving maintenance hemodialysis.
- Conditions
- End Stage Kidney Disease (ESKD), Hemodialysis, Chronic Kidney Disease Mineral and Bone Disorder
- Trial name
- MBD-HD (NCT07685223)
- Testing
- Medium Cut-Off Hemodialysis Membrane, High-Flux Hemodialysis Membrane
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people
- Sponsor
- Gazi University
Maternal Care Patterns, Child Nutrition Disorders
Relationship Between Maternal Awareness About Vitamin D for Under- Five Years Children and Their Health Status Outcomes
The observational study aims to identify the relationship between maternal awareness about vitamin D for under-five-year-old children and their health status outcomes.
- Conditions
- Maternal Care Patterns, Child Nutrition Disorders, Vitamin D Deficiency
- Trial name
- Vit-D (NCT06562426)
- Testing
- Descriptive group on vitamin D awareness
- Where
- Egypt
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Alexandria University
Rare Disorders, Undiagnosed Disorders
Rare Disease Patient Registry & Natural History Study - Coordination of Rare Diseases at Sanford
The Coordination of Rare Diseases at Sanford (CoRDS) is an international patient registry that serves as a centralized resource for rare disease research.
- Conditions
- Rare Disorders, Undiagnosed Disorders, Disorders of Unknown Prevalence, Cornelia De Lange Syndrome
- Trial name
- CoRDS (NCT01793168)
- Where
- United States
- Volunteers
- 20,000 people
- Sponsor
- Sanford Health
Renal Failure, Kidney Donors
BOne Dysfunction in Donor NEphrectomieS
Most dialysis patients die from vascular disease, which is statistically associated with changes related to chronic kidney disease associated mineral bone disorder (CKD-MBD)3-9.
- Trial name
- BONES (NCT04674397)
- Testing
- Radioisotope GFR test
- Where
- United Kingdom
- Volunteers
- 34 people
- Sponsor
- Manchester University NHS Foundation Trust
Vitamin B 12 Deficiency
Cobalamin Status in Young Children With Gastrointestinal Symptoms or Feeding Problems
During fetal life and infancy, an adequate cobalamin status is important for normal growth and central nervous system development.
- Trial name
- NCT00710359
- Testing
- Hydroxycobalamin (Vitamin B12 Depot, Nycomed Pharma)
- Where
- Norway
- Volunteers
- 100 people
- Sponsor
- Haukeland University Hospital
Vitamin D Deficiency, Musculoskeletal Diseases
Vitamin D in School Children
The primary purpose of this study it to investigate total circulating 25-hydroxyvitamin D (25(OH)D) in school children (aged 4-11years) in Northern Ireland; thereby establishing the prevalence of vitamin D status (deficiency…
- Conditions
- Vitamin D Deficiency, Musculoskeletal Diseases, Cognitive Delay, Mild
- Trial name
- DVinCHI (NCT05018988)
- Testing
- Oral vitamin D spray
- Where
- United Kingdom
- Volunteers
- 118 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Vitamin D Deficiency
Controlled Trial of Prenatal Vitamin D3 Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants
The purpose of this research study is to compare the effects of higher dose vitamin D with commonly recommended dose in pregnant women to see which is better in achieving and/or maintaining sufficient vitamin D blood levels…
- Trial name
- PA 03-103 (NCT00610688)
- Testing
- Prenatal Vitamin, Cholecalciferol (Vitamin D3)
- Where
- 2 sites in United States, United Arab Emirates
- Volunteers
- 192 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Chronic Kidney Diseases, Chronic Kidney Disease-Mineral and Bone Disorder
Chinese CKD-MBD Prevalence Survey (CRISS-MBD)
This is a multi-center cross sectional epidemiological study. The purpose of this study is to investigate the prevalence of Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD) in Chinese population.
- Trial name
- NCT04714918
- Where
- 40 sites in China
- Volunteers
- 10,254 people
- Sponsor
- Limeng Chen
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