Clinical trials: Deficiency, Vitamin D
Burn
High-Dose Vitamin D Deficiency in Burn Injury
High dose Vitamin D (50,000IU) therapy may increase bone mineral density/bone mineral content after large burns.
- Trial name
- VitaminD (NCT00591604)
- Testing
- Vitamin D
- Sponsor
- The University of Texas Medical Branch, Galveston
Vitamin D Deficiency
Determination of Effective Vitamin D Replacement and Monitoring Strategies in Vitamin D Deficiency State
The purpose of the study is determination of effective vitamin D replacement strategy in vitamin D deficiency states with currently available preparations in Pakistan \& to determine the cost effective monitoring strategy with…
- Trial name
- EVIREST-D (NCT01430793)
- Testing
- Vitamin D3 600,000 units IM, Vitamin D3 600,000 Orally, Vitamin D3 200,000 units IM
- Where
- Pakistan
- Volunteers
- 99 people
- Sponsor
- Aga Khan University
Vitamin D Deficiency, Cognitive Decline
High-dose Vitamin D Supplements in Older Adults
This Phase II randomized clinical trial aims to test if supplementation with high dose oral vitamin D will successfully correct vitamin D insufficiency, compared to treatment with standard (RDA) dose vitamin D in a diverse…
- Trial name
- NCT03613116
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 180 people
- Sponsor
- University of California, Davis
Secondary Hyperparathyroidism, Chronic Kidney Disease
Treatment of Secondary Hyperparathyroidism in the Uremic Patient
The purpose of this study is to compare alfacalcidol and paricalcitol in the treatment of secondary hyperparathyroidism in hemodialysis patients.
- Conditions
- Secondary Hyperparathyroidism, Chronic Kidney Disease, Vitamin D Deficiency
- Trial name
- NCT00469599
- Testing
- paricalcitol, alfacalcidol
- Where
- 8 sites in Denmark
- Volunteers
- 86 people
- Sponsor
- Zealand University Hospital
Hemodialysis Complication, Vitamin D Deficiency
Cholecalciferol on Hemodialysis Patients
Screening the prevalence of vitamin D deficiency among Egyptian hemodialysis patients on a single center (Ain Shams University hospital).
- Conditions
- Hemodialysis Complication, Vitamin D Deficiency, Vascular Calcification
- Trial name
- NCT03602430
- Testing
- Cholecalciferol
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Ain Shams University
Nutritional Rickets
Vitamin D and Genetics in Nutritional Rickets
The purpose of this study is: 1. To compare the response of rickets to calcium with and without vitamin D. 2. To assess whether vitamin D increases calcium absorption in calcium deficiency rickets. 3.
- Trial name
- NCT00949832
- Testing
- Vitamin D + Calcium, Calcium, Vitamin D2
- Where
- Nigeria
- Volunteers
- 109 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Early Childhood Caries, Vitamin D Deficiency
Vitamin D Status With Early Childhood Caries
Studies that give people vitamin D supplements to prevent caries have found that vitamin D is effective at preventing the development of caries.
- Trial name
- NCT03521492
- Testing
- serum vitamin D , calcium , parathyroid hormone and albumin level
- Where
- Saudi Arabia
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ministry of Health, Saudi Arabia
Obesity, Endothelial Dysfunction
Effect of Vitamin D Supplementation on Endothelial Function in Obese Adolescents
Vitamin D deficiency has been linked to endothelial dysfunction in adults. Obese adolescents have a high prevalence of Vitamin D deficiency as well as evidence of endothelial dysfunction.
- Conditions
- Obesity, Endothelial Dysfunction, Vitamin D Deficiency
- Trial name
- NCT01746264
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Polycystic Ovary Syndrome, Vitamin D Deficiency
Association of Vitamin D Status With Metabolic Markers in Adolescents With Polycystic Ovary Syndrome
This prospective cross-sectional case-control study aims to investigate the relationship between serum vitamin D levels, visceral adipose tissue (VAT) thickness, and metabolic parameters in adolescents diagnosed with polycystic…
- Conditions
- Polycystic Ovary Syndrome, Vitamin D Deficiency, Insulin Resistance
- Trial name
- NCT06970821
- Where
- Turkey (Türkiye)
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Bagcilar Training and Research Hospital
Calcium and Vitamin D Deficiencies
Calcichew D3 Preference Study in Participants Eligible for Calcium and Vitamin D Supplementation.
The purpose of this study is to compare the preference of Calcichew D3 500/400 (containing 500 mg calcium and 400 IU of vitamin D) with Adcal-D3 600/400 (containing 600 mg of calcium and 400 IU of vitamin D) in Test Group 1, and…
- Trial name
- NCT02457247
- Testing
- Calcichew D3, Adcal-D3, Kalcipos-D
- Where
- 9 sites in Germany, United Kingdom
- Volunteers
- 276 people
- Sponsor
- Takeda
Vitamin A Deficiency, Vitamin D Deficiency
Effects of Fat-soluble Vitamins Supplementation on Common Complications and Neural Development in Very Low Birth Weight Infants
Vitamins A, D, and E play important roles in humans, such as vision function, immune function, bone metabolism, cell growth and differentiation and oxidation resistance.
- Conditions
- Vitamin A Deficiency, Vitamin D Deficiency, Vitamin E Deficiency, Very Low Birth Weight Infants
- Trial name
- NCT03876704
- Testing
- High dose of fat-Soluble Vitamin, Conventional dose of fat-Soluble Vitamin
- Where
- China
- Volunteers
- 120 people
- Sponsor
- First Affiliated Hospital Xi'an Jiaotong University
Renal Insufficiency, Chronic, Renal Osteodystrophy
Kidney Yin/Yang Replenishment on Patients With Renal Osteodystrophy
Patients with serious chronic renal insufficiency usually develop secondary osteoporosis or bone loss, especially those with chronic dialysis, and the degree of bone loss is corrected with decrease of renal function.
- Trial name
- NCT01665651
- Testing
- Yougui granules, Zuogui granules
- Where
- 3 sites in China
- Volunteers
- healthy volunteers welcome
- Sponsor
- Bing Shu
Hypophosphatemia, Familial, Hyperparathyroidism
Effectiveness of Paricalcitol in Reducing Parathyroid Hormone (PTH) Levels in X-linked Hypophosphatemic Rickets
The purpose of this study is to determine the effectiveness of paricalcitol, a form of synthetic vitamin D, in lowering parathyroid hormone (PTH) levels and reducing disease symptoms in children and adults with X-linked…
- Trial name
- NCT00417612
- Testing
- Paricalcitol
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- Yale University
Urinary Incontinence, Vitamin D Deficiency
Vitamin D Supplementation in Older Adults With Urinary Incontinence
Urinary incontinence (UI) is a common disorder among older women that greatly affects quality of life. Emerging evidence from observational studies links vitamin D insufficiency with UI.
- Trial name
- NCT01971801
- Testing
- Vitamin D3 50,000 IU
- Where
- United States
- Volunteers
- 243 people
- Sponsor
- University of Alabama at Birmingham
Chronic Kidney Failure, Chronic Kidney Disease-Mineral and Bone Disorder
Mineral Bone Disorder in Dialysis
This study was conducted with 167 dialysis patients at Erciyes University Faculty of Medicine, Department of Internal Medicine, Department of Nephrology, and Dialysis Unit, with the approval of the Ethics Committee of Erciyes…
- Conditions
- Chronic Kidney Failure, Chronic Kidney Disease-Mineral and Bone Disorder, Dialysis, Hemodialysis
- Trial name
- MBDialysis (NCT07212972)
- Testing
- Hemodialysis or peritoneal Dialysis
- Where
- Turkey (Türkiye)
- Volunteers
- 167 people
- Sponsor
- Çanakkale Onsekiz Mart University
Gynaecological Disease, Vitamin D Deficiency
Association Between Vitamin D and the Risk of Uterine Fibroids
The aim of this randomised clinical trial study is to evaluate whether supplementation with vitamin D could reduce the risk of uterine fibroids in reproductive stage women.
- Conditions
- Gynaecological Disease, Vitamin D Deficiency, Uterine Fibroids
- Trial name
- ABVDATROUF (NCT03586947)
- Testing
- Vitamin D3 400 UNT Oral Capsule
- Where
- China
- Volunteers
- 1,160 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Vitamin D Deficiency, Scleroderma, Systemic
Immunomodulating Effects of Supplementation With 25-OH Vitamin D
Introduction. The thickening fibrotic of the skin in systemic sclerosis (SSc) could reduce endogenous availability of Vitamin D by sun exposition.
- Trial name
- SCLERODERMA (NCT04822038)
- Testing
- Vitamin D3, Dietary recommendations
- Where
- Mexico
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Coordinación de Investigación en Salud, Mexico
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
Obesity, Vitamin D Deficiency
Vitamin D Supplementation Reduces Renin-Angiotensin System Activity in Obesity
Hypothesis: Vitamin D supplementation lower renin-angiotensin system activity in obesity. Specific Aim: To investigate whether Vitamin D supplementation in obesity improves the vascular sensitivity to angiotensin II.
- Conditions
- Obesity, Vitamin D Deficiency, Hypertension
- Trial name
- NCT01068418
- Testing
- Vitamin D (cholecalciferol)
- Where
- United States
- Volunteers
- 26 people
- Sponsor
- Brigham and Women's Hospital
Primary Hyperparathyroidism, Vitamin D Deficiency
Vitamin D Repletion in Primary Hyperparathyroidism
This study will look at the effect of 2 treatment regimens that contain vitamin D in a six-month treatment trial of patients with PHPT who are vitamin D deficient.
- Trial name
- NCT01306656
- Testing
- 10,000 IU Vitamin D3, Vitamin D
- Where
- United States
- Volunteers
- 9 people
- Sponsor
- Columbia University
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