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 87 clinical trials
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%, …
Vitamin D and Endometrial Receptivity in Infertile Women
This is a prospective study comparing vaginal and endometrial biomarkers and the trophoblast spheroid attachment rate in women with fertility problems before and after taking Vitamin D for 8 weeks.
Vitamin D in Dialysis Patients - Diagnostic and Therapeutic Management
The goal of this observational study is to learn about the effects of cholecalciferol administration, according to guidelines for the general population, on laboratory parameters of Chronic Kidney Disease-Mineral and Bone Disorder in dialysis patients, depending of the attained levels of vitamin D (25OH)D). The main question it aims to …
Vitamin D and Health Status of British African-Caribbean Women
Vitamin D deficiency remains a global public health issue (Wilson 2017). In the United Kingdom (UK). There is a lack of research looking at vitamin D status of the British African-Caribbean population. This population is particularly at risk to vitamin D deficiency due to possessing a skin type which hinders …
Vitamin D and Immune Mechanisms of Hypertension in Type 2 Diabetics
This trial will evaluate whether a particular type of circulating white blood cell, monocytes, from type 2 diabetics with high blood pressure and vitamin D deficiency vs. sufficiency will induce hormones that increase blood pressure.
Correlation Vitamin D Level to Endocrine Autoimmune Toxicity Due to Immune Checkpoint Inhibitors
The purpose of this research study is to see if the amount of vitamin D in ones blood makes it more or less likely to develop thyroid gland toxicity when being treated with immunotherapy that blocks the activity of proteins called programed death-1(PD-1) or programmed death ligand-1 (PD-L1). Immunotherapy is …
