Clinical trials: Vitamin D3 Deficiency
Vitamin D Deficiency, End Stage Renal Disease
A Study of 25-hydroxy Vitamin d Levels in Non-itching Hemodialysis Patients
Hypothesis: 25-hydroxy vitamin D levels in non-itching hemodialysis (HD) patients will be higher than those in HD patients with itching 25-hydroxy vitamin D levels will be measured in non-itching hemodialysis patients and…
- Trial name
- NCT01548716
- Where
- 2 sites in United States
- Volunteers
- 50 people
- Sponsor
- Winthrop University Hospital
Pediatric Fractures, Hypovitaminosis D
Bone Outcomes, Obesity, Sunlight, and Trauma in Children
Prospective case-control study of children (3-15 years) after low-energy trauma. We compare serum bone metabolic markers (25OHD, PTH, ALP, calcium, phosphate), BMI/percentile, and dietary calcium intake between fracture and…
- Conditions
- Pediatric Fractures, Hypovitaminosis D, Obesity and Overweight
- Trial name
- BOOST (NCT07143552)
- Where
- 2 sites in Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Paracelsus Medical University
Respiratory Tract Infection, Vitamin D Deficiency
Cholecalciferol Intervention to Prevent Respiratory Infections Study
This is a feasibility double-blind randomised controlled trial in 32 participants. It evaluates the feasibility of a full trial which will examine the efficacy of weekly supplementation of cholecalciferol (vitamin D3) relative to…
- Trial name
- CIPRIS (NCT01549938)
- Testing
- Cholecalciferol
- Where
- Australia
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Menzies Institute for Medical Research
Vitamin D Deficiency
Maternal Vit D Supplements & Infant and Maternal Biomarkers & Outcomes in Southern Ethiopia
Synthesis of vitamin D in the skin through the action of sunlight is a major source of vitamin D in parts of the world where foods are not fortified with the vitamin.
- Trial name
- NCT02210884
- Testing
- Vitamin D
- Where
- Ethiopia
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Oklahoma State University
Cirrhosis, Vitamin D Deficiency
Vitamin D Supplementation in Cirrhotic Patients
Previous studies suggested that vitamin D deficiency is highly prevalent in cirrhotic patients and is related to the degree of liver dysfunction as well as mortality.
- Trial name
- NCT02009748
- Testing
- Vitamin D supplementation
- Where
- 2 sites in Austria
- Volunteers
- 36 people
- Sponsor
- Medical University of Graz
Vitamin D Deficiency
The Effect of Combinatorial Nutritional Supplementation on Immune Function in Healthy Older Adults
Many older adults do not get enough zinc, vitamin C and vitamin D, and this can be related to decreased ability to fight infection.
- Trial name
- NCT02876315
- Testing
- Redoxon VI
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Oregon State University
Dietary Supplements, Intensive Care Unit
Vitamin D Supplementation in Intensive Care Unit Patients
A randomized controlled trial is designed to investigate the safety and clinical efficacy of a mega dose of VD in patients admitted in intensive care unit (ICU).
- Conditions
- Dietary Supplements, Intensive Care Unit, Vitamin D Deficiency, Vitamin D Toxicity
- Trial name
- NCT04915963
- Testing
- Vitamin D supplementation
- Volunteers
- 340 people
- Sponsor
- Association Tunisienne d'Etude & de Recherche sur l'Athérosclérose
Hypovitaminosis D, Cardiovascular Diseases
Vitamin D Supplementation on in Major Orthopedic Surgery
Prospective, monocentric study in open, aimed at evaluating the effects of supplementation with calcifediol on left ventricular function parameters in cardiopathic subjects undergoing major orthopedic surgery.
- Trial name
- NCT03403933
- Testing
- Didrogyl
- Where
- Italy
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio
Crohn's Disease, Vitamin D Deficiency
Exploring the Effects of Vitamin D Supplementation on the Chronic Course of Patients With Crohn's Disease With Vitamin D Deficiency
Aims:Prospectively observe the effects of Vitamin D drops supplementation on the chronic course of Crohn's disease patients, analyze whether the effect of Vitamin D drops on CD patients is affected by factors such as disease…
- Conditions
- Crohn's Disease, Vitamin D Deficiency, Vitamin D Supplement
- Trial name
- NCT04308850
- Testing
- Vitamin D drops
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Vitamin D Deficiency, Critical Illness
Early Vitamin D3 Supplementation for Critically Ill Patients
There are no clear international guidelines for dosing vitamin D based on deficiency severity. Therefore, a new clinical trial is needed to evaluate the benefits of early vitamin D supplementation in maintaining sufficient levels…
- Trial name
- NCT05937789
- Testing
- Vitamin D3, Medium Chain Triglycerides (MCT)
- Where
- Taiwan
- Volunteers
- 240 people
- Sponsor
- National Taiwan University Hospital
Osteoporosis, Vitamin D Deficiency
Physiologic Interactions Between the Adrenal- and the Parathyroid Glands
To investigate possible physiologic interactions between the adrenal- and the parathyroid glands in patients with secondary hyperparathyroidism.
- Conditions
- Osteoporosis, Vitamin D Deficiency, Cardiovascular Disease
- Trial name
- AldOst (NCT02572960)
- Testing
- Valsartan, Cholecalciferol
- Where
- Denmark
- Volunteers
- 81 people
- Sponsor
- University of Aarhus
Vitamin D Deficiency, Nasal Polyposis
Effect of Vitamin d Deficiency in Chronic Rhinosinusitis With Nasal Polyposis
Aim of the work 1. To determine if chronic rhinosinusitis with nasal polyps' (CRSwNP) populations are vitamin D deficient. 2. To determine the possible anti-inflammatory effect of vitamin D supplementation (clinically \&…
- Trial name
- NCT04529668
- Testing
- vitamin D supplementation, usual therapy for nasal polyposis
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Ain Shams University
Vitamin D Deficiency
Evaluation of Vitamin D Requirements During Pregnancy
The purpose of this study is to determine the effectiveness of vitamin D supplementation during pregnancy starting at the beginning of the second trimester.
- Trial name
- NCT00292591
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 501 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
X-linked Hypophosphatemia
Anti-FGF23 (Burosumab) in Adult Patients With XLH
X-linked hypophosphatemia (XLH) rare genetic disorder due by inactivating mutations in the PHEX gene leading to increased levels in FGF-23.
- Trial name
- BurGER (NCT04695860)
- Testing
- Burosumab
- Where
- Germany
- Volunteers
- 36 people
- Sponsor
- Wuerzburg University Hospital
Symptomatic Uterine Fibroid
Effect of Vitamin D3 Supplementation on Symptomatic Uterine Fibroid in Women With Vitamin D Deficiency
39 women with symptomatic uterine fibroid with serum vitamin D deficiency will receive vitamin D3 supplementation for 6 month.then symptoms and size of fibroid will be re evaluated..
- Trial name
- NCT07012161
- Testing
- Colecalciferol (Vitamin D3) 50000 UI
- Where
- 2 sites in Bangladesh
- Volunteers
- 39 people
- Sponsor
- Nahida Akter
Healthy
Assessment of the Efficacy of Vitamin D-fortified Bread in Healthy Adults
The aim of this study is to evaluate the efficacy of daily intake of fortified bread with vitamin D on serum 25-hydroxyvitamin D level, glycemic and lipidemic status in healthy subjects compared to vitamin D supplement.
- Trial name
- NCT02516254
- Testing
- fortified bread, supplement
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- National Nutrition and Food Technology Institute
Vitamin D Deficiency, 25-Hydroxyvitamin D3 Deficiency, Selective
Vitamin D3-enhanced Eggs in Preschool Children
This is double-blind, controlled fiel trial, to compare fortified egg with D3-or 25(OH)D3 and non-fortified eggs in healthy preschool-age children 12 to 60 months of age, affiliated to day-care centers at Secretaria de Desarrollo…
- Trial name
- VD3-egg (NCT06096194)
- Testing
- vitamin D-enhanced egg, Control
- Where
- Mexico
- Volunteers
- 275 people
- Sponsor
- Instituto Nacional de Salud Publica, Mexico
Tooth Loss, Vitamin D3 Deficiency
Dental Implants Rehabilitation in Patients With Vitamin D3 Imbalance
Interventional retrospective prospective randomized clinical trial (RCT) in parallel groups. The sample size is 384 patients with loss of teeth and vitamin D imbalance.
- Conditions
- Tooth Loss, Vitamin D3 Deficiency, Osteomalacia
- Trial name
- NCT04841213
- Testing
- Dental implantation
- Where
- 2 sites in Russia
- Volunteers
- 384 people
- Sponsor
- I.M. Sechenov First Moscow State Medical University
Vitamin d Deficiency, COVID-19
Risk in Devel Long-COVID in Contracting SARS-CoV-2 Infection After COVID-19 Vaccination in Relation to Vitamin D3 Suppl
The aim of this observational retrospective study is to evaluate the effect of supplementation with cholecalciferol D3 in reducing the risk of: occurence of Long COVID syndrome after acute COVID-19 illness occurence of SARS-CoV-2…
- Conditions
- Vitamin d Deficiency, COVID-19, Long COVID
- Trial name
- LONGVITAVAX2 (NCT06452082)
- Where
- Italy
- Volunteers
- 200 people
- Sponsor
- IRCCS San Raffaele
Restless Leg Disorder, Renal Disease Bone
Cholecalciferol Supplementation in Restless Leg Syndrome in Patients With Chronic Kidney Disease
Restless leg syndrome (RLS) is sleep disorder characterized by an unpleasant feeling in the lower limbs, which can be accompanied by paresthesias, and need for urgent movement of the legs.
- Conditions
- Restless Leg Disorder, Renal Disease Bone, Renal Disease, End Stage, Hyperparathyroidism, Secondary
- Trial name
- RLS (NCT03063190)
- Testing
- Vitamin D
- Where
- Brazil
- Sponsor
- University of Sao Paulo General Hospital