Clinical trials: Vitamin D Deficiency
Obesity, Vitamin D Deficiency
Effect of Exercise on Vitamin d in Obese
The aim of the current study was to investigate the effect of exercise-induced lipolysis on vitamin D status in obese children. Two types of exercises that have different effects on lipolysis were used.
- Trial name
- NCT05066490
- Testing
- Endurance exercise, Resistance exersises.
- Where
- Saudi Arabia
- Volunteers
- 30 people
- Sponsor
- Taif University
Pneumonia, Vitamin D Deficiency
Kabul Vitamin D Supplementation Trial
Background: Pneumonia is the leading cause of childhood mortality, accounting for 19% of the 10.6 million deaths that occur each year1.
- Trial name
- NCT00548379
- Testing
- vitamin D
- Where
- 2 sites in Afghanistan
- Volunteers
- 3,048 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Type 2 Diabetes
Relationship Between Insulin Resistance and Vitamin D in Type 2 Diabetes Mellitus (DM)
The primary aim of the study is to evaluate the association between vitamin D levels and triglyceride-glucose index as a marker of insulin resistance in patients with type 2 DM.
- Trial name
- DM (NCT07467161)
- Volunteers
- 165 people
- Sponsor
- Assiut University
Liver Transplant; Complications, Vitamin D Deficiency
Relationship Between Serum Vitamin D and Outcomes of Liver Transplantation in Cirrhotic Patients Undergoing Liver Transplantation and Effects of Vitamin D Supplementation in Post-transplant Period
The study population is patients with liver cirrhosis undergoing liver transplantation; In this study, the sample will be selected from cirrhosis patients undergoing liver transplantation in Taleghani (Tehran), Imam Khomeini…
- Trial name
- NCT05568836
- Testing
- vitamin D supplementation, control
- Volunteers
- 42 people
- Sponsor
- National Nutrition and Food Technology Institute
Obesity
Vitamin D Supplementation in Vitamin D Deficient Obese Children During Weight-loss Program
1. Analyze the influence of vitamin D supplementation in obese children during weight-loss program on BMI, body composition and bone mineral density. 2.
- Trial name
- NCT02828228
- Testing
- Vitamin D 1200 IU
- Where
- Poland
- Volunteers
- 200 people
- Sponsor
- University Clinical Centre, Gdansk
Vitamin D Deficiency
Community Interventional Trial (CITFOMIST)
The cluster randomized trial (CITFOMIST) was conducted on 15-19-year old guidance and high school students of both genders from different districts of Tehran, the Iranian capital, in winter 2011.
- Trial name
- CITFOMIST (NCT02035423)
- Testing
- 120 IU milk, 200 IU Milk, Non-Fortified Milk
- Where
- Iran
- Volunteers
- 6,000 people, healthy volunteers welcome
- Sponsor
- Tehran University of Medical Sciences
Vitamin D Deficiency
Vitamin D Dose-Response Study to Establish Dietary Requirements in Infants
The research team is comprised of an expert nutrition scientist and a pediatrician with expertise in endocrinology. Both have world-class experience in assessing bone mass in infancy.
- Trial name
- NCT00381914
- Testing
- Vitamin D
- Where
- Canada
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- McGill University
Hypocalcemia, Pseudohypoparathyroidism
Studies of States With Resistance to Vitamin D and Parathyroid Hormone
Patients with confirmed or suspected states with resistance to vitamin D or parathyroid hormone (PTH) will be admitted for diagnosis, treatment review with suggestions for modifications to the current or new treatment and for…
- Conditions
- Hypocalcemia, Pseudohypoparathyroidism, Osteomalacia, Rickets
- Trial name
- NCT00001242
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Vitamin D Deficiency, Obesity
Vitamin D Deficiency and Low Bone Mineral Content in Children
The Vitamin D study is designed to investigate the effect of body fat mass on vitamin D levels in children. Earlier studies have shown that individuals with increased fat mass may have low vitamin D levels.
- Trial name
- VDS (NCT00756899)
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Massachusetts, Worcester
Metabolic Bone Disease, Osteopenia
A Study to Assess Metabolic Bone Disease of Prematurity Using an Acoustic Method
The goal of this project is to develop a new noninvasive ultrasound based technique, called vibro-acoustic analysis (VAA), for evaluation of infant bone health with particular application in assessment of bone health in premature…
- Conditions
- Metabolic Bone Disease, Osteopenia, Neonatal Rickets
- Trial name
- NCT04752098
- Testing
- Vibro-acoustic analysis (VAA), based on ultrasound radiation force
- Where
- United States
- Volunteers
- 37 people
- Sponsor
- Mayo Clinic
Asthma, Vitamin D Deficiency
The Effect of Vitamin D Replacement on Airway Reactivity, Allergy and Inflammatory Mediators in Exhaled Breath Condensate in Vitamin D Deficient Asthmatic Children
Research Title: The effect of vitamin D replacement on airway reactivity, allergy and inflammatory mediators in exhaled breath condensate in vitamin D deficient asthmatic children.
- Trial name
- NCT01287455
- Testing
- Vitamin D3 as "BABY D3"
- Where
- Israel
- Volunteers
- 83 people
- Sponsor
- Rambam Health Care Campus
Nutritional Rickets
Role of Calcium And Vitamin D In Nutritional Rickets And It's Management
Rickets, a common nutritional disorder, is usually considered to be due to vitamin D deficiency. However, in the last few decades many studies have shown that in tropical countries, with abundance of sunshine, calcium deficiency…
- Trial name
- ROCAVINR (NCT01578434)
- Testing
- Vitamin D, Calcium Carbonate, Vitamin D and Calcium
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- Lady Hardinge Medical College
Vitamin D2 Supplementation in Vitamin D Insufficiency
Optimal Doses of Ergocalciferol Supplementation for Treatment of Hypovitaminosis D in Adults
To investigate the optimal initial and maintenance doses of vitamin D2 supplementation for the treatment of vitamin D insufficiency in Thai adults, and to determine the prevalence of and risk factors for hypovitaminosis D among…
- Trial name
- NCT03228862
- Testing
- Ergocalciferol
- Where
- Thailand
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- Chulalongkorn University
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, Hematopoietic Stem Cell Transplantation (HSCT)
Vitamin D Replacement Using Oral Thin Film (OTF) Cholecalciferol in Patients Undergoing Hematopoietic Stem Cell Transplantation
The investigators hypothesize that vitamin D levels can be improved in hematopoietic stem cell transplantation (HSCT) recipients not responding or tolerating standard enteral supplementation options by using vitamin D oral thin…
- Trial name
- NCT04818957
- Testing
- Oral Thin Film (OTF) Cholecalciferol (Vitamin D3)
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Children's Hospital Medical Center, Cincinnati
X-Linked Hypophosphatemia
Long-Term Extension Study of KRN23 in Adult Subjects With X-Linked Hypophosphatemia (XLH)
The primary objectives of this study are to: Assess the long-term safety of KRN23 subcutaneous (SC) administration in adult subjects with XLH Assess the proportion of subjects achieving serum phosphorus levels in the normal range…
- Trial name
- NCT02312687
- Testing
- KRN23
- Where
- 5 sites in United States
- Volunteers
- 20 people
- Sponsor
- Kyowa Kirin, Inc.
Asthma, Vitamin D Deficiency
Vitamin D in Pediatric Asthma: a Randomized Controlled Open-label Pilot Trial
This is a pilot randomized controlled trial of lower vs. higher dose vitamin D supplementation in D-deficient asthmatic children, to determine necessary sample sizes for outcome measures in a larger multisite study, and to…
- Trial name
- D-Asthma (NCT02054975)
- Testing
- Vitamin D2 + vitamin D3, Vitamin D3
- Where
- United States
- Volunteers
- 18 people
- Sponsor
- Nationwide Children's Hospital
Osteomalacia
Serum FGF-23 and Vitamin D Deficiency
We aimed to determine the effect of vitamin D replacement therapy on serum FGF-23 concentrations in vitamin D deficient women and to compare the FGF-23 concentrations of vitamin D deficient patients with healthy subjects and…
- Trial name
- NCT01102751
- Where
- Turkey (Türkiye)
- Volunteers
- healthy volunteers welcome
- Sponsor
- Istanbul University
Aging, Vitamin Deficiency
Swiss Study on Vitamin D and Calcium in Nursing Homes
Residents of nursing homes are endangered by malnutrition and vitamin D deficiency. Our study checks compliance with Swiss federal recommendations on vitamin D and calcium supplementation among residents of a Swiss nursing home.
- Trial name
- NCT01653353
- Testing
- peer physician-applied recommendation to the physicians
- Where
- Switzerland
- Volunteers
- 71 people
- Sponsor
- University of Zurich
Vitamin D Deficiency
Vitamin D Supplementation D_SAF Pilot Study
This study is a randomised control trial (RCT) pilot study to determine the appropriate vitamin D dose for the main study. The pilot study includes three matched groups, which will form two vitamin D supplementation groups (at…
- Trial name
- NCT04033796
- Testing
- 25,000 IU, 50,000 IU
- Where
- 2 sites in United Kingdom
- Volunteers
- 532 people, healthy volunteers welcome
- Sponsor
- University of Surrey