Clinical trials: Vitamin D Deficiency Disease
Diabetes Mellitus, Type 2, Glucose Intolerance
Effects of Vitamin D on Beta Cell Function and Insulin Sensitivity in Pre-diabetes and Diabetes Mellitus Type 2
The purpose of this study is to evaluate if treatment with vitamin D increase beta cell function and insulin sensitivity in subjects with pre-diabetes or newly diagnosed diabetes mellitus type 2.
- Conditions
- Diabetes Mellitus, Type 2, Glucose Intolerance, Vitamin D Deficiency
- Trial name
- EVIDENS (NCT01497132)
- Testing
- Vitamin D3
- Where
- Sweden
- Volunteers
- 44 people
- Sponsor
- Karolinska Institutet
Vitamin d Deficiency
Vitamin D Levels in Neonatal Umbilical Cord Blood: Factors and Prognostic Analysis
This study is a retrospective-prospective cohort study that investigates the factors influencing neonatal umbilical cord blood 25(OH)D levels, and the impact of exposure to low intrauterine 25(OH)D levels on neonatal prognosis.
- Trial name
- NCT06111066
- Where
- China
- Volunteers
- 186 people
- Sponsor
- Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
Deficiency, Vitamin D, Obesity
Dosage Calculation for Vitamin D Treatment
Severe vitamin D deficiency can be treated with oral loading doses of cholecalciferol. Our objective was to determine how to calculate the quantity of cholecalciferol needed for supplementation by single algorithm, usable on a…
- Trial name
- NCT02186106
- Testing
- Cholecalciferol
- Volunteers
- 31 people
- Sponsor
- Bispebjerg Hospital
Preeclampsia
Vitamin D3 Supplementation Regimens and Preeclampsia Risk
This study is a randomized controlled trial with two parallel groups connected at Al-Thawra Modern General Hospital in Sana'a, Yemen.
- Trial name
- VitD-PE-RCT (NCT07648706)
- Testing
- Vitamin D3
- Where
- Yemen
- Volunteers
- 268 people
- Sponsor
- Sana'a University
Hypovitaminosis D
Vitamin D Supplementation in Younger Women
That on average it will require a vitamin D dose of 1700IU/day to increase the serum 25hydroxyvitamin D level from 20 to 30ng/ml in young Caucasian women and a dose of 1860 to 2480 IU/day in African American
- Trial name
- VITADAS (NCT00662844)
- Testing
- vitamin D3
- Volunteers
- 198 people, healthy volunteers welcome
- Sponsor
- Creighton University
Overactive Bladder, Vitamin D Deficiency
The Role of Urinary RhoA, NGF, and BDNF Levels in Overactive Bladder and Vitamin D Deficiency
The primary aim of this study is to evaluate the role of three specific urinary proteins-RhoA, Nerve Growth Factor (NGF), and Brain-Derived Neurotrophic Factor (BDNF)-as potential biomarkers for the diagnosis and follow-up of…
- Trial name
- NCT07513363
- Testing
- Urotherapy
- Where
- Turkey (Türkiye)
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Tarik Emre Sener
Hypophosphatemia, X-linked Hypophosphatemia
FGF23 and Angiotensin-(1-7) in Hypophosphatemia (GAP)
Hereditary hypophosphatemia encompasses rare genetic conditions characterized by renal phosphate wasting. Increased circulating levels of fibroblast growth factor 23 (FGF23), a key regulator of phosphorus metabolism, are critical…
- Conditions
- Hypophosphatemia, X-linked Hypophosphatemia, Renin-angiotensin System, Left Ventricular Hypertrophy
- Trial name
- GAP (NCT03489993)
- Testing
- Ang II and Ang-(1-7), FGF23 and klotho
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- Wake Forest University Health Sciences
Vitamin D Deficiency
Nutritional Requirements for Vitamin D in Pregnant Women
Randomised, placebo-controlled dose-response intervention study with vitamin D3 in pregnant women.
- Trial name
- DMAT (NCT02506439)
- Testing
- 10 mcg Vitamin D3, 20 mcg Vitamin D3
- Where
- 2 sites in Ireland
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- University College Cork
Acute Respiratory Distress Syndrome, Vitamin D Deficiency
Vitamin D to Improve Outcomes by Leveraging Early Treatment
Vitamin D deficiency is a common, potentially reversible contributor to morbidity and mortality among critically ill patients. We conducted a randomized, double-blind, placebo-controlled, phase 3 trial of early vitamin D3…
- Conditions
- Acute Respiratory Distress Syndrome, Vitamin D Deficiency, Critical Illness
- Trial name
- VIOLET (NCT03096314)
- Testing
- Vitamin D3
- Where
- 47 sites in United States
- Volunteers
- 1,358 people
- Sponsor
- Massachusetts General Hospital
Healthy, Vitamin D Deficiency
Can Correction of Low Vitamin D Status in Infancy Program for a Leaner Body Composition?
One in four infants are born with low amounts of vitamin D stored in their body. This study is designed to test whether improving vitamin D status quickly after birth helps infants to build muscle and to normalize growth.
- Conditions
- Healthy, Vitamin D Deficiency, Gestational Diabetes
- Trial name
- NCT02563015
- Testing
- cholecalciferol, Reference 400
- Where
- Canada
- Volunteers
- 139 people, healthy volunteers welcome
- Sponsor
- McGill University
Hypophosphatemic Rickets
Milk Products in the Treatment of Hypophosphatemic Rickets
The aim of this study was to investigate the feasibility and efficacy of a high intake of milk and/or cheese products compared to phosphate tablets in patients with hypophosphatemic rickets when evaluating the S-phosphate levels…
- Trial name
- NCT03348644
- Testing
- Phosphate tablets., High cheese intake., High milk intake.
- Where
- Denmark
- Volunteers
- 7 people
- Sponsor
- University of Aarhus
X-linked Hypophosphatemia, Tumor-Induced Osteomalacia
Expanded Access to Burosumab
Individual patient expanded access requests may be considered for patients who have no other treatment options
- Trial name
- NCT03775187
- Testing
- Burosumab
- Sponsor
- Kyowa Kirin Co., Ltd.
Chronic Kidney Diseases, Chronic Kidney Disease-Mineral and Bone Disorder
Chinese CKD-MBD Prevalence Survey (CRISS-MBD)
This is a multi-center cross sectional epidemiological study. The purpose of this study is to investigate the prevalence of Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD) in Chinese population.
- Trial name
- NCT04714918
- Where
- 40 sites in China
- Volunteers
- 10,254 people
- Sponsor
- Limeng Chen
Vitamin D Deficiency, Osteoporosis
Does Vitamin D Alter Bone's Response to Vibration?
Fractures in children are common and the incidence is increasing. They are more common in children who have small, narrow and weak bones.
- Trial name
- NCT02743559
- Testing
- Mechanical Stimulation using whole body vibration
- Where
- United Kingdom
- Sponsor
- Sheffield Children's NHS Foundation Trust
Vitamin D Deficiency
Effects of Vitamin D Dose and Genotype of the Binding Protein in Infants and Children
The purpose of this study is to determine if the vitamin D binding protein genotype influences circulating vitamin D levels and if it may have functional consequences on vitamin D activity.
- Trial name
- VitaD (NCT01050387)
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 193 people, healthy volunteers welcome
- Sponsor
- Yale University
Nutritional Deficiency
The Use of the 25 (OH) D Saliva Test as a Substitute for the 25 (OH) D Serum Test in Healthy People
Routine examination of vitamin D levels is carried out by checking serum 25 (OH)D levels, which indicate circulating vitamin D levels.
- Trial name
- NCT04655664
- Testing
- not currently consumed vitamin D supplements regularly, consumed vitamin D supplements regularly
- Where
- Indonesia
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Universitas Sumatera Utara
Pulpitis - Irreversible, Vitamin D Deficiency
Effect of Vitamin D on Postoperative Pain in Symptomatic Irreversible Pulpitis
Vitamin D deficiency (VDD) is a prevalent global health concern that has been linked to altered pain perception through its effects on inflammatory pathways, nociceptor activity, and neurotrophic signaling.
- Trial name
- NCT07579637
- Testing
- Vitamin D3
- Where
- Egypt
- Volunteers
- 54 people
- Sponsor
- Future University in Egypt
Deficiency, Vitamin D
Effect of Vitamin D Replacement on Bone Healing in Mini-dental Implants
1. Title 2. Executive team 3. Research line 4. Summary 5. Research problem 6. Justification 7. Literature review 8. Objectives 9. Materials and methods 10. Dissemination of knowledge generated 11. Schedule of activities 12.
- Trial name
- NCT03356730
- Testing
- Vitamin D
- Where
- Brazil
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Universidade de Passo Fundo
X-linked Hypophosphatemia (XLH)
Treatment Patterns, Biochemical Profiles and Clinical Outcomes in Adults With X-Linked Hypophosphatemia
The purpose of this study is to better understand how X-linked hypophosphatemia (XLH) affects the body and daily life. Phosphate levels are critical in managing XLH, we aim to study how these levels change in patients taking…
- Trial name
- IBIS XLH (NCT07607600)
- Testing
- No treatment given
- Where
- 23 sites in United States, Australia and 6 more
- Sponsor
- Novo Nordisk A/S
X-Linked Hypophosphatemia
A Study to Describe the Lived Experience of XLH for Adolescents at End of Skeletal Growth
An observational, prospective, mixed-methods study involving the integration of quantitative and qualitative data exploring the lived experience of burosumab-treated adolescents with XLH at the end of skeletal growth.
- Trial name
- NCT05181839
- Testing
- Burosumab
- Where
- 14 sites in France, Germany and 3 more
- Volunteers
- 25 people
- Sponsor
- Kyowa Kirin Pharmaceutical Development Ltd