Clinical trials: Vitamin D Supplementation
Diabetes Complications, Vitamin D Deficiency
Myocardial Function and Vitamin D Supplementation in Diabetes.
Vitamin D deficiency is recognized as a cardiovascular risk factor. Diabetic patients are of major risk for cardiovascular diseases and typically present with Vitamin D deficiencies.
- Conditions
- Diabetes Complications, Vitamin D Deficiency, Vitamin D Supplementation, Myocardial Dysfunction
- Trial name
- VitaDD (NCT03437421)
- Testing
- Vitamin D3 (cholecalciferol)
- Where
- France
- Volunteers
- 100 people
- Sponsor
- University of Avignon
Polycystic Ovary Syndrome, Vitamin D Deficiency
The Effects of Vitamin D on Angiogenic Factors in Women With Polycystic Ovary Syndrome
Polycystic Ovary Syndrome (PCOS) affects 5 to 10% of women of reproductive age. It is characterized by a cluster of hyperandrogenism, hyperinsulinemia, menstrual dysfunction, hirsutism and infertility.
- Trial name
- NCT02460380
- Testing
- Vitamin D3
- Volunteers
- 93 people
- Sponsor
- Maimonides Medical Center
Asthma, Vitamin D Deficiency
Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations.
The role of vitamin D in respiratory health remains uncertain. Whether vitamin D reduces clinically important exacerbations of childhood asthma remains uncertain.
- Trial name
- NCT01395589
- Testing
- Vitamin D
- Where
- Qatar
- Volunteers
- 597 people, healthy volunteers welcome
- Sponsor
- Hamad Medical Corporation
Thyroid Neoplasm
Routine Calcium for Preventing Hypocalcemia
The present study investigated the effect of routine calcium and vitamin D supplementation and tried to find the predictors for postoperative hypocalcemia in patients with thyroid cancer.
- Trial name
- NCT03484416
- Testing
- Calcium Carbonate 1500 Mg with Vitamin D
- Where
- South Korea
- Volunteers
- 138 people
- Sponsor
- Ewha Womans University Mokdong Hospital
Vitamin D Deficiency, Vitamin; Excess Vitamin D (Nutritional)
Vitamin D Supplements on Markers for Cardiovascular Disease and Diabetes: an Individual Participant Data Meta-analysis
This meta-analysis will be conducted to study the effect on vitamin D supplements on markers for cardiovascular disease and diabetes using individual participant data from 12 RCTs.
- Trial name
- NCT02551835
- Volunteers
- 2,945 people, healthy volunteers welcome
- Sponsor
- Amsterdam UMC, location VUmc
Spondylitis, Tuberculosis
Oral Vitamin D and Toll Like Receptor in Spondylitis Tuberculosis
Background : The toll-like receptor is an essential receptor that stimulates the innate immunity response. In tuberculosis, toll-like receptors, particularly the TLR-2, and TLR-4 are crucial in recognizing various ligands with a…
- Trial name
- NCT05376189
- Testing
- 400 IU, 5000 IU, 10000 IU
- Where
- Indonesia
- Volunteers
- 37 people
- Sponsor
- Hasanuddin University
Tuberculosis
Vitamin D Supplementation Enhances Immune Response to Bacille-Calmette-Guerin (BCG) Vaccination in Infants
The purpose of this study is to determine whether a single oral dose of vitamin D given to infants prior to Bacille-Calmette-Guerin (BCG) vaccination will enhance the immune response to BCG vaccination.
- Trial name
- BCG-25-D (NCT01288950)
- Testing
- Vitamin D3 (cholecalciferol)
- Where
- Mexico
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Vitamin D Deficiency
A Comparative Dissolution and Absorption Study of an Orodispersible Powder, Chewable Tablet and Soft Gel Capsule Vitamin D3 Supplementation
This is an open-labelled, randomized controlled clinical trial aimed to compare the pharmacokinetics of an orodispersible vs a soft gelatin vitamin supplementation in vitamin D deficient healthy adults.
- Trial name
- NCT05706259
- Testing
- Soft gelatin 200000 IU vitamin D3 capsule, Orodispersible (sachet) 200000 IU vitamin D3
- Where
- Pakistan
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Liaquat University of Medical & Health Sciences
Vitamin D-deficient, Insulin-resistant
Role of Vitamin D in the Prevention and Treatment of Diseases Associated With Insulin Resistance
Prospective, randomized and placebo-controlled 6-month trial of vitamin D supplementation in 130 Caucasian and vitamin D-deficient men and women aged 25 years and over.
- Trial name
- VIDIR (NCT01779908)
- Testing
- Vitamin D
- Where
- Canada
- Volunteers
- 96 people
- Sponsor
- CHU de Quebec-Universite Laval
Sarcopenia
Efficacy of Dietary Supplementation and Physical Activity in Sarcopenic Elderly
This 3 months randomized, double-blind, placebo-controlled supplementation trial tested the hypothesis that nutritional supplementation with whey protein, essential amino acids and vitamin D concurrent with regular, controlled…
- Trial name
- NCT02402608
- Testing
- dietary supplement
- Where
- Italy
- Volunteers
- 130 people
- Sponsor
- Azienda di Servizi alla Persona di Pavia
Tuberculosis
Vitamin D in Active Tuberculosis (TB) Study
Tuberculosis is a disease caused by a bacterium (a germ) that can cause illness in any organ of the body, but most frequently causes disease of the lungs. TB is short for tuberculosis.
- Trial name
- NCT00788320
- Testing
- Vitamin D3
- Where
- United States
- Sponsor
- Atlanta VA Medical Center
Methicillin Resistant Staphylococcus Aureus, Vitamin D3 Deficiency
Efficacy Study of Vitamin D Supplementation to Meticillin Resistant Staphylococcus Aureus (MRSA) Carriers
The purpose of this study is to treat persistent MRSA carriers with vitamin D supplementation during a 12 month to see if the number of MRSA positive patients can be reduced.
- Trial name
- D-STAPH (NCT02178488)
- Testing
- Cholecalciferol
- Where
- 2 sites in Sweden
- Volunteers
- 60 people
- Sponsor
- Peter Bergman
Mental Health Issue
Effect of Vitamin D Supplementation on Allostatic Load and Chronic Stress Along Line of Control in Azad Jammu Kashmir
FULL TITLE Effect of vitamin D supplementation on the Allostatic load and Chronic stress along line of control in Azad Jammu and Kashmir.
- Trial name
- NCT06101589
- Testing
- 25 hydroxy cholecalciferol (Vitamin D) /25(OH)D3.
- Where
- Pakistan
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University of the Punjab
Evaluation of Expected Bone Loss After Bariatric Surgery, Possible Prevention of Bone Loss After Surgery by Calcium and Vitamin D Supplementation
Bone Metabolism After Laparoscopic Gastric Bypass Surgery (BABS)
Bariatric surgery leads to rapid weight loss in female and male patients. Less data are available about its impact on bone metabolism.
- Trial name
- BABS (NCT01739855)
- Testing
- Calciferol, calcium carbonate
- Where
- Austria
- Volunteers
- 160 people
- Sponsor
- Medical University of Vienna
Hypovitaminosis D
Importance of Dosing Regimen for the Effect of Vitamin D Supplementation
Vitamin D is a hormone with effects not only on the skeleton, but on most tissues in the body. Lack of vitamin D is associated with cardio-vascular disease (CVD), type 2 diabetes, cancer, infectious and immunological diseases, as…
- Trial name
- NCT03272126
- Testing
- Vitamin D
- Where
- Norway
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- University of Tromso
Covid19, Acute Respiratory Tract Infection
Trial of Vitamin D to Reduce Risk and Severity of COVID-19 and Other Acute Respiratory Infections
CORONAVIT is an open-label, phase 3, randomised clinical trial testing whether implementation of a test-and-treat approach to correction of sub-optimal vitamin D status results in reduced risk and/or severity of COVID-19 and…
- Trial name
- CORONAVIT (NCT04579640)
- Testing
- Vitamin D
- Where
- United Kingdom
- Volunteers
- 6,200 people, healthy volunteers welcome
- Sponsor
- Queen Mary University of London
Gestational Diabetes Mellitus
The Impact of Vitamin D Supplementation on Pregnant Women With the Risk of GDM
A clinical trial will be conducted in Chemical pathology department in collaboration with Gyne \&Obs department of PRH, IIMC over a period of 02 years w.e.f. December 15, 2023.
- Trial name
- NCT06139133
- Testing
- Vitamin D supplementation
- Where
- Pakistan
- Volunteers
- 350 people
- Sponsor
- IIMC, Riphah International University, Pakistan
Covid19
Vitamin D, Omega-3, and Combination Vitamins B, C and Zinc Supplementation for the Treatment and Prevention of COVID-19
The NUTROVID Factorial Trials The purpose of the NUTROVID-Prevent and NUTROVID-Treat Factorial Trials is to determine whether Vitamin B Complex, Vitamin C, and Zinc; Vitamin D; and Omega3, taken at dosages approximating…
- Trial name
- NUTROVID (NCT04828538)
- Testing
- Vitamin D, Omega DHA / EPA, Vitamin C, Vitamin B complex and Zinc Acetate
- Where
- Mexico
- Volunteers
- healthy volunteers welcome
- Sponsor
- Hospital de la Soledad
Obesity, Insulin Resistance
Effect of Vitamin D Supplementation on Muscle Mass and Function
The study was designed to assess the effects of vitamin D supplementation during exercise training on body composition, muscle function, and glucose tolerance.
- Conditions
- Obesity, Insulin Resistance, Inflammation
- Trial name
- NCT01199926
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Purdue University
Type 2 Diabetes
The Effect of Vitamin D Supplementation on Glucose Metabolism in Non-Diabetic African American Adults
Type 2 diabetes is more common among African Americans than Caucasians. African Americans are also at a higher risk for lower levels of vitamin D compared to other ethnic groups.
- Trial name
- AVIS (NCT01141192)
- Testing
- vitamin D3, cholecalciferol, Inactive comparator
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- Augusta University