Vitamin D Clinical Trials
A listing of Vitamin D medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.
Found 91 clinical trials
is There an Effect of Adding Body Vibration to Intake of Vitamin D on Some Outcomes of Familial Mediterranean Fever
Familial mediterranean fever (FMF) is common in mediterranean region. this disorder is connected with deterioration in functional performance, fitness of cardiorespiration, muscle strength, and bone mass
Evaluating Response to Vitamin D3 and K2 Supplementation in Healthcare Personnel
The main purpose of this research study is to learn about the effects of supplemental vitamin D3 and vitamin K2 on blood levels and the gut microbial community, called the gut microbiome. There are many influences on blood levels of vitamin D and K to include your dietary intake, lifestyle …
Effect of Vitamin D3 Supplementation on Brain Waves in Male Epileptic Patients With Hypovitaminosis D
This is an experimental study (interventional self-controlled trial, pretest-post test design). The goal of this clinical trial is to evaluate the effect of vitamin D3 supplementation on quantitative EEG in male epileptic patients with hypovitaminosis D. . The main question it aims to answer is: Vitamin D3 supplementation has effect …
Vitamin A Supplementation in Allogeneic Stem Cell Transplantation.
The investigators hypothesize that single oral high dose supplementation with vitamin A will reduce the incidence of moderate-severe chronic graft-versus-host disease (GVHD) compared with placebo.
The Roles of Human Microbiome and Vitamin D in the Development of Childhood Allergic Diseases
A birth cohort study to evaluate the role of human microbiome and vitamin D in the development of allergic diseases in young child before one year of age.
Vitamin D Dynamics in Women
The goal of this project is to utilize stable isotopically labeled vitamin D3 and state of the art mass spectrometric methodology to assess vitamin D dynamics during pregnancy in relation to relation to obesity and vitamin D binding protein genotype. At the conclusion of this study, the investigators will have …
Burosumab and 1-25 (OH) Vitamin D on Human Osteoblasts
FGF23 is the cornerstone of phosphate / calcium / vitamin D metabolism: it is synthesized mainly by osteocytes and acts as a phosphaturizing agent, inhibitor of dihydroxyvitamin D, and inhibitor of synthesis and secretion of PTH in most tissues. The specific role of FGF23 on bone has yet to be …
Effects of Vitamin D on Health Promotion During Pregnancy and Its Impact on Prematurity-Related Outcome
The VitDTracking study focuses on the relevance of maternal vitamin D levels and their association with prematurity, aiming to improve maternal and child health outcomes, particularly by reducing avoidable preterm births. In Portugal, vitamin D levels during pregnancy have never been studied. Epidemiological data from other countries reveal a high …
Vitamin D and Head and Neck Cancer: Impact on Toxicity and Prognosis
The goal of this observational study is to learn about relation between vitamin D levels in subjects with head and neck cancer. The main question it aims to answer are: variation of vitamin D levels in the study population at different time points relation between therapy side effects and vitamin …
Validation of Prediction Model of Vitamin D Deficiency
Many studies have pointed out that patients with vitamin D deficiency have a longer stay in the intensive care unit and a poor prognosis. The investigators' previous multi-center prospective observational study in Taiwan reveals that the prevalence of vitamin D deficiency in critically ill patients in northern Taiwan is 59%, …
