Clinical trials: Vitamin D3 Deficiency
Phosphate Diabetes, X-linked Hypophosphatemia
Phosphorus-31 Spectroscopy in Phosphate Diabetes
Phosphate diabetes is defined by urinary phosphate wasting due to impaired tubular reabsorption. It can be classified based on either a genetic or acquired origin.
- Trial name
- Phos-ATP (NCT06921720)
- Testing
- intra-muscular ATP values in phosphate diabetes, intra-muscular phosphate values in phosphate diabetes
- Where
- 2 sites in France
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Elderly, Metabolic Syndrome
Metabolic Syndrome and Vitamin D Level in Old People
In 2012, a cross-sectional survey sampling 1,966 community-dwelling old people was conducted. Structurized questionnaires were interviewed face-to-face by well-trained staffs.
- Conditions
- Elderly, Metabolic Syndrome, Vitamin D Deficiency, Ostreocalcin
- Trial name
- NCT03344718
- Where
- Taiwan
- Volunteers
- 549 people, healthy volunteers welcome
- Sponsor
- National Cheng-Kung University Hospital
Psoriasis Vulgaris, Vitamin D Deficiency
Efficacy of Vitamin D3 for the Treatment of Psoriatic Patients With Vitamin D Deficiency and Insufficiency
The purpose of this research is to study whether vitamin D supplement can improve clinical outcome (PASI score) in psoriasis vulgaris with vitamin D insufficiency and deficiency.
- Trial name
- NCT01339741
- Testing
- Vitamin D3
- Where
- Thailand
- Volunteers
- 30 people
- Sponsor
- Chulalongkorn University
Vitamin D Deficiency, Periodontitis
25-Hydroxyvitamin D Levels in Patients With Periodontitis (Stage III)
Periodontitis; is an inflammatory disease of tissues characterized by bone destruction around the teeth. Vitamin D plays an important role in several inflammatory diseases by promoting the expression of inflammatory cytokines…
- Trial name
- NCT05343273
- Testing
- taking a blood sample
- Where
- Turkey (Türkiye)
- Volunteers
- 83 people, healthy volunteers welcome
- Sponsor
- Ataturk University
Hypophosphatemia, Rickets
The Impact of Phosphate Metabolism on Healthy Aging
Determine the association between duration and dose of chronic conventional therapy with Pi and renal (nephrocalcinosis/nephrolithiasis), vascular (endothelial function), and cardiovascular function (echo- cardiography) in…
- Conditions
- Hypophosphatemia, Rickets, Hypercalciuria, XLH
- Trial name
- NCT03771105
- Testing
- phosphate
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Yale University
Osteopenia, Renal Osteodystrophy
Osteopenia and Renal Osteodystrophy: Evaluation and Management
The purpose of this study is to demonstrate whether pamidronate will preserve or increase bone mass in patients with adynamic bone disease, caused by low bone turnover.
- Trial name
- NCT00108394
- Testing
- pamidronate
- Where
- United States
- Sponsor
- US Department of Veterans Affairs
Vitamin D Deficiency
Comparison of 25-hydroxy Vitamin D Level in Caucasian Women Receiving Vitamin D Supplementation and Not Receiving Supplementation: a Randomized Controlled Trial.
The objective of this study is to assess whether vitamin D supplements are sufficient to increase females who are deficient or borderline deficient in vitamin D levels to normal levels.
- Trial name
- NCT00882505
- Testing
- vitamin D
- Where
- United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Pediatric Migraine, Migraine Disorders, Brain
Comorbidity-Based Propranolol Use in Pediatric Migraine
This observational retrospective cohort study aims to identify clinical and biochemical predictors of response to propranolol prophylaxis in pediatric migraine.
- Conditions
- Pediatric Migraine, Migraine Disorders, Brain, Vitamin D Deficiency
- Trial name
- NCT07103031
- Testing
- Behavioral therapy, Propranolol
- Where
- Turkey (Türkiye)
- Volunteers
- 488 people
- Sponsor
- Kayseri University
Primary Hyperparathyroidism, Hypercalcemia
Primary Hyperparathyroidism (PHPT): Early Effect of Vitamin D
Primary hyperparathyroidism (PHPT) is a common disease that occurs in 1 in 10,000 people every year. In the presence of this condition, the parathyroid glands produce excessive amounts of parathyroid hormone (PTH), which…
- Conditions
- Primary Hyperparathyroidism, Hypercalcemia, Vitamin D Deficiency, Osteoporosis
- Trial name
- NCT01329666
- Testing
- Vitamin D3
- Where
- United States
- Sponsor
- Columbia University
COVID, Vitamin D Deficiency
Vitamin D Levels in SARS-CoV-2: Do Current Adequacy Thresholds Reflect Clinical Risk? Insights From a Large Turkish Cohort
Blood vitamin D levels may be associated with severity of viral infections. To find out If there is a statistically significant relation between blood 25-hydroxy vitamin D (25(OH)D) levels and disease severity, patients with…
- Trial name
- NCT04394390
- Testing
- vitamin d
- Where
- Turkey (Türkiye)
- Volunteers
- 1,100 people
- Sponsor
- Bursa City Hospital
Vitamin D Deficiency, Peripheral Neuropathy
Vit D and Peripheral Neuropathy in Taxane Naive Patients
To evaluate the efficacy of vit D supplement in cancer patients which receive taxane drugs with vit D deficiency and complaining from Peripheral neuropathy
- Trial name
- NCT05852496
- Testing
- Vitamin D
- Volunteers
- 60 people
- Sponsor
- Assiut University
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
Iron-deficiency
Effect of Vitamin D3-fortified Fruit Juice on Iron Status in Women
The present study is designed to utilise vitamin D3 supplements that may potentially act as an iron absorption enhancer to improve iron status in the Malaysian child-bearing aged women with low iron stores.
- Trial name
- NCT04618289
- Testing
- Vitamin D3-fortified fruit juice supplement
- Where
- Malaysia
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Universiti Putra Malaysia
Ergocalciferol
Pilot Study: The Effect of Ergocalciferol on Plasma Mucin-1 Levels
To determine if a one-time oral administration of ergocalciferol results in a decline in plasma mucin-1 levels in healthy individuals and individuals with ADTKD-MUC1.
- Trial name
- NCT03747523
- Testing
- Ergocalciferol
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Vitamin D Deficiency, Inflammatory Bowel Diseases
Vitamin D Status in Inflammatory Bowel Disease
Inflammatory bowel disease (IBD), comprising crohn's disease (CD) and ulcerative colitis (UC), is a a chronic, relapsing-remitting systemic disease.
- Trial name
- vdsinibd (NCT03496246)
- Testing
- serum total 25 hydroxycholecalciferol 25(OH) vitamin D, complete blood count (CBC), serum calcium level
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Assiut University
Bacterial Pneumonia
Vitamin D Supplementation Prevents Elderly Pneumonia
Pneumonia is the fourth leading cause of death and frequently occurs in institutionalized elderly people in Japan. Recently, several clinical and experimental studies have reported the importance of vitamin D in the regulation of…
- Trial name
- NCT00877422
- Testing
- Vitamin D3
- Where
- Japan
- Volunteers
- 100 people
- Sponsor
- Tohoku University
Vitamin D Deficiency
The Influence of Food Matrix Delivery System on the Bioavailability of Vitamin D3
This study investigates the influence of different food matrices on the bioavailability of vitamin D. Although most vitamin D comes from skin synthesis in response to sun exposure, dietary intake is also important - especially…
- Trial name
- DFORT (NCT03783273)
- Testing
- Vitamin D3, Whey protein-complex, Water
- Where
- Denmark
- Volunteers
- 30 people
- Sponsor
- University of Aarhus
Vitamin D Deficiency (10 ng/mL to 30 ng/mL)
Vitamin D as a Supplement Against Falls in Elderly Study
The role of vitamin D deficiency on increased risk for falls and physical dysfunction is unclear. It is also unclear if taking vitamin D improves physical function and reduces fall risk in older adults.
- Trial name
- D-SAFE (NCT01827345)
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- University of Florida
Inflammatory Bowel Disease, Crohn Disease
High Dose Interval Vitamin D Supplementation in Patients With Inflammatory Bowel Disease Receiving Biologic Therapy
The investigators will be administering oral high dose interval vitamin D, concurrently when participants are receiving biologic therapy for their inflammatory bowel disease.
- Conditions
- Inflammatory Bowel Disease, Crohn Disease, Ulcerative Colitis, Vitamin D Deficiency
- Trial name
- NCT04331639
- Testing
- vitamin D3
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Boston Children's Hospital
Healthy
Vitamin D Deficiency Epidemiological Research in Sichuan, China
Vitamin D insufficiency and deficiency is pandemic in the world.Sichuan Basin has a subtropical monsoon climate with China's lowest sunshine totals.
- Trial name
- NCT01457365
- Where
- China
- Volunteers
- 1,500 people, healthy volunteers welcome
- Sponsor
- West China Hospital