Clinical trials: Vitamin Deficiencies
Obesity, Vitamin D Deficiency
Effect of Exercise on Vitamin d in Obese
The aim of the current study was to investigate the effect of exercise-induced lipolysis on vitamin D status in obese children. Two types of exercises that have different effects on lipolysis were used.
- Trial name
- NCT05066490
- Testing
- Endurance exercise, Resistance exersises.
- Where
- Saudi Arabia
- Volunteers
- 30 people
- Sponsor
- Taif University
Vitamin D Deficiency
Vitamin D Absorbance Study - Clinical Trial of the Absorbance of Nano Liquid D3
Vitamin D is a commonly available essential prohormone humans need to regulate blood calcium and has recently emerged as potentially helpful in combating severe COVID-19.
- Trial name
- ViDAS (NCT04885803)
- Testing
- Softgel Vitamin D3, Nano Liquid Vitamin D3, 25(OH)D Blood Serum Test
- Where
- United States
- Volunteers
- 114 people, healthy volunteers welcome
- Sponsor
- Inspired Life Medical, Inc.
Vitamin D Deficiency
The Impact of Severe Vitamin D Deficiency and Its Correction on Bone Mineral Density (BMD) in Postmenopausal Women
It is well known that postmenopausal women are at risk for osteoporosis. The study hypothesis is that vitamin D deficiency (≤17.5nmol/L) is frequently associated with osteomalacia and will cause low BMD estimation in DXA scan due…
- Trial name
- Vitamin D (NCT01694355)
- Testing
- Vitamin D
- Where
- Israel
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Soroka University Medical Center
Graft Vs Host Disease, Vitamin A Deficiency
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.
- Conditions
- Graft Vs Host Disease, Vitamin A Deficiency, Vitamin D Deficiency
- Trial name
- NCT06450925
- Testing
- Vitamin A
- Where
- 3 sites in United States
- Volunteers
- 190 people
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Rickets
Ultrasound Imaging and Quantitative Vibro-Acoustic Assessment of Rickets Under the Age of Ten
The goal of this study is to find out if the use of ultrasound pictures of bones can spot changes in the growth areas of children with rickets, a condition that affects how bones harden.
- Trial name
- NCT06385938
- Testing
- Ultrasound with quantitative vibro-acoustic assessment
- Volunteers
- healthy volunteers welcome
- Sponsor
- Mayo Clinic
Chronic Renal Failure
Serum Uremic Toxins and Histological Findings of the Blood Vessels in Dialysis Patients
Patients treated by chronic renal replacement therapy are exposed to cardiovascular problems and suffer from an accelerated and sever atherosclerosis.
- Trial name
- NCT00412139
- Where
- North Macedonia
- Volunteers
- 100 people
- Sponsor
- University of Skopje
Pituitary ACTH Hypersecretion, Acromegaly
Vitamin D Metabolism in Patients With Endocrine Disorders
This prospective controlled interventional study aims to reveal the diversity of vitamin D metabolism in patients with certain endocrine disorders (Cushing's disease, acromegaly, primary hyperparathyroidism, diabetes mellitus…
- Conditions
- Pituitary ACTH Hypersecretion, Acromegaly, Diabetes Mellitus, Type 1, Primary Hyperparathyroidism
- Trial name
- NCT04844164
- Testing
- Cholecalciferol 15000 UNT/ML Oral Solution
- Where
- Russia
- Volunteers
- 261 people, healthy volunteers welcome
- Sponsor
- Endocrinology Research Centre, Moscow
Benign Paroxismal Positional Vertigo
BPPV Recurrence After CRM With & Without Supplementation
Benign paroxysmal positional vertigo (BPPV) may frequently recur even after successful canalith repositioning maneuvers (CRMs). This study investigates whether the addition of vitamin K₂ to vitamin D₃ offers additional benefits…
- Trial name
- RR-BPPV-DK (NCT07861464)
- Testing
- Combined vitamin D₃ and K₂ supplementation, Vitamin D₃ alone, Canalith repositioning maneuver (CRM) alone
- Where
- Jordan
- Volunteers
- 404 people
- Sponsor
- University of Jordan
Vitamin D Deficiency
The Effect Of Vitamin D On Measures Of Bone Health And Gene Expression
Vitamin D deficiency is now recognized as one of the most common vitamin deficiencies in adults in the United States. Vitamin D deficiency has been connected to many chronic health diseases.
- Trial name
- NCT01696409
- Testing
- 400 IU vitamin D3, 2000 IU vitamin D3
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Boston 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
End-Stage Renal Disease
Vitamin D3 Supplementation in Dialysis Patients
Vitamin D deficiency is highly prevalent among dialysis patients, and has been associated with cardiovascular risk factors such as increased aortic pulse wave velocity, blood pressure, inflammation, and brain natriuretic peptide.
- Trial name
- NCT01312714
- Testing
- Cholecalciferol
- Where
- Denmark
- Volunteers
- 64 people
- Sponsor
- Regional Hospital Holstebro
Vitamin D Deficiency
Comparison of Maternal and Neonatal Vitamin D Levels in Term Neonates With and Without Early Onset Sepsis
Neonatal sepsis is a clinical syndrome characterized by signs and symptoms of infection with or without accompanying bacteremia in the first month of life which is still an important cause of morbidity and mortality.
- Trial name
- NCT02019836
- Testing
- Determining maternal and neonatal vitamin D levels
- Where
- Turkey (Türkiye)
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Kanuni Sultan Suleyman Training and Research Hospital
X-linked Hypophosphatemia (XLH)
Study to Assess the Safety, Pharmacokinetics and Efficacy of KRN23 in Pediatric Chinese Patients With XLH
The purpose of this study is to assess the safety, pharmacokinetics and efficacy of KRN23 in pediatric Chinese patients with XLH
- Trial name
- NCT04842032
- Testing
- KRN23
- Where
- 5 sites in China
- Volunteers
- 28 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Hypertension, Vitamin D Deficiency
DAYLIGHT: Vitamin D Therapy in Individuals at High Risk of Hypertension
This is a randomized, double-blind, multicenter, 6-month follow-up trial of low (400 IU/day) versus high (4000 IU/day) dose vitamin D supplementation in individuals with pre- and early stage 1 hypertension and vitamin D…
- Conditions
- Hypertension, Vitamin D Deficiency, Pre-Hypertension
- Trial name
- DAYLIGHT (NCT01240512)
- Testing
- Cholecalciferol
- Where
- 3 sites in United States
- Volunteers
- 534 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Renal Osteodystrophy
Renal Osteodystrophy: A Fresh Approach
There are two major goals of this project: 1. Comparison of DXA and QCT for diagnosis of bone loss in CKD-5 patients and determination of the prevalence of low bone turnover in CKD-5 patients with bone loss. 2.
- Trial name
- NCT00859612
- Where
- United States
- Volunteers
- 464 people
- Sponsor
- Hartmut Malluche, MD
Vitamin D Deficiency, Coronary Artery Disease
Vitamin D Repletion in Coronary Artery Disease
Vitamin D (Vit D) status is an emerging risk marker of great interest in cardiovascular disease (CVD). Lower serum levels of Vit D are associated with both cardiac risk factors and prevalent cardiovascular disease.
- Conditions
- Vitamin D Deficiency, Coronary Artery Disease, Endothelial Dysfunction, Inflammation
- Trial name
- NCT01570309
- Testing
- Ergocalciferol, Sugar pill
- Where
- 2 sites in United States
- Volunteers
- 96 people
- Sponsor
- Seth I. Sokol, M.D.
Pediatric Disorder, Vitamin D Deficiency
Retinal Changes in Vitamin D Deficiency
Retinal tissue parameters of pediatric patients with vitamin D deficiency will be evaluated in this prospective case-control study. The patients will be divided into 2 groups according to the vitamin D level.
- Conditions
- Pediatric Disorder, Vitamin D Deficiency, Retinal Disease, Choroidal Disease
- Trial name
- VDD (NCT04891211)
- Testing
- Vitamin D deficiency
- Where
- Turkey (Türkiye)
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Adiyaman University
Vitamin-D Insufficiency
Seasonal Variations in Serum 25-hydroxy Vitamin-D Levels in a Swedish Cohort
The purpose of this study was to study seasonal inter-individual and intra-individual variations in S-25(OH)D and to explore parameters associated with S-25-OHD in healthy Swedish adults.
- Trial name
- NCT02136407
- Where
- Sweden
- Volunteers
- 615 people, healthy volunteers welcome
- Sponsor
- Sahlgrenska University Hospital
PET / CT, PET / MR
Study of the Diagnostic Value of Hybrid PET/MR and PET/CT in Neuroendocrine Diseases and Tumor Induced Osteomalacia
Neuroendocrine tumors (NETs) are rare neoplasms arising from the diffuse endocrine system and spreading throughout the different organs and tissues of the body.
- Conditions
- PET / CT, PET / MR, Neuroendocrine Tumors, Osteomalacia
- Trial name
- NCT04045834
- Testing
- 68Ga-DOTA-TATE PET/MR and PET/CT imaging
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Vitamin D Deficiency
Effect of Oral Daily Supplementation With 400 IU Vs 200 IU of Vitamin D in Term Healthy Neonates
The purpose of the study is to evaluate the effect of daily oral supplementation with vitamin D on serum Vitamin D levels in term healthy newborns.
- Trial name
- NCT02186028
- Testing
- Vitamin D
- Where
- India
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Lady Hardinge Medical College
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.