Clinical trials: Vitamin D Deficiency, completed
Vitamin D Deficiency
Prevalence of Vitamin D Deficiency in Pregnant Women and Their Fetus in North Jordan
In Jordan, there are few data about the prevalence of hypovitaminosis D in pregnant women and their newborns and factors that affect their levels. Hence, in this study, investigators will : 1.
- Trial name
- NCT04944212
- Testing
- Measuring vitamin D serum level using ELIZA
- Where
- Jordan
- Volunteers
- 396 people
- Sponsor
- Jordan University of Science and Technology
Vitamin D Deficiency
Topical Delivery of Vitamin D3 as Vitamin D Supplementation
After obtaining the approval from the IRB of University of Dammam and informed consent from 550 healthy patients, with vitamin D deficiency and vitamin D insufficiency and deficiency were recruited.
- Trial name
- NCT02735200
- Testing
- Application of topical vitamin d3 (Top-D), Application of Aloe vera gel
- Where
- Saudi Arabia
- Volunteers
- 550 people, healthy volunteers welcome
- Sponsor
- Imam Abdulrahman Bin Faisal University
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
Kidney Failure, Chronic, Anemia
Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients
The purpose of this study is to determine whether cholecalciferol supplementation decrease the blood concentrations of hepcidin-25 in hemodialysis patients.
- Conditions
- Kidney Failure, Chronic, Anemia, Vitamin D Deficiency, Bone Diseases, Metabolic
- Trial name
- CHAMBER (NCT02214563)
- Testing
- Cholecalciferol, Olive oil
- Where
- 7 sites in Japan
- Volunteers
- 90 people
- Sponsor
- Takayuki Hamano
Asthma-COPD Overlap Syndrome
This Study Include Asthma Chronic Obstructive Pulmonary Disease (COPD) Overlap Patients.Patients Were Vitamin D Deficient.Age Range 40-70 Years, Smokers.Patients Were Advised to Take Either Placebo or Vitamin D3.Lung Functions and Exercise Tolerance Were Assessed at Baseline and at 26th Weeks.
Vitamin D3 supplementation doen not change lung functions and exercise tolerance in vitamin D3 deficient ACO patient was the null hypothesis of the research.
- Trial name
- NCT03880734
- Testing
- Cholecalciferol
- Where
- Bangladesh
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
Rickets
Specturi Device - Feasibility Study
On a daily basis many (prematurely born) newborn are subjected to different urine collecting techniques to study biochemical abnormalities.
- Trial name
- NCT03105557
- Testing
- Urinary collecting device
- Where
- Netherlands
- Volunteers
- 20 people
- Sponsor
- Capturin Distribution B.V.
COVID, Zinc Deficiency
Evaluation of the Relationship Between Zinc Vitamin D and b12 Levels in the Covid-19 Positive Pregnant Women
Zinc d vitamin and b12 serum levels in covid-19 positive pregnants will be compared in terms of patients' responses to computed tomography and treatment.
- Conditions
- COVID, Zinc Deficiency, Vitamin D Deficiency
- Trial name
- NCT04407572
- Testing
- Serum zinc, vitamin d vitamin b12 levels .
- Where
- Turkey (Türkiye)
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Kanuni Sultan Suleyman Training and Research Hospital
Vitamin D Deficiency, Periodontal Diseases
Effect of Vitamin D on Periodontal Disease
Background. Vitamin D has both direct effects on bone metabolism and an antimicrobial effect on periodontopathogens. It also inhibits inflammatory mediators that contribute to periodontal destruction.
- Trial name
- NCT04209231
- Testing
- 1.25(OH)2D3, 25(OH)D
- Where
- Turkey (Türkiye)
- Volunteers
- 82 people
- Sponsor
- Recep Tayyip Erdogan University Training and Research Hospital
Vitamin D Status
Hypovitaminosis D Prediction Score
Vitamin D has effects on many tissues, and hypovitaminosis D is frequent. In a French survey conducted among 1587 adults, vitamin D insufficiency (<30ng/ml) has been reported in 80% of subjects, including 43% with moderate…
- Trial name
- SCOPYD (NCT02822651)
- Testing
- Blood sampling, self-administered questionnaire
- Where
- France
- Volunteers
- 2,592 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Vitamin D Deficiency
Effects of Vitamin D Supplementation During Pregnancy on Clinical Outcomes and Immune Function
Researchers at the USDA Western Human Nutrition Research Center and clinicians at UC Davis Medical Center are currently conducting a study on the effects of vitamin D supplementation during pregnancy on maternal health and immune…
- Trial name
- NCT01417351
- Testing
- 400 IU vitamin D3, 2,000 IU Vitamin D3
- Where
- 2 sites in United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research Center
Disorder of Bone Density and Structure, Unspecified, Vitamin D Deficiency
Nutritional Deficiencies Preventive Treatment Prior to Laparoscopic Sleeve Gastrectomy
This study will examine the effect of providing a structured program of daily nutritional supplements for a 8 weeks of intervention prior to Sleeve Gastrectomy bariatric surgery on bone mass density status and formation of…
- Trial name
- LSG (NCT02483026)
- Testing
- Multi vitamin, vitamin D
- Where
- Israel
- Volunteers
- 62 people
- Sponsor
- Hadassah Medical Organization
Crohn Disease, Vitamin D Deficiency
Effect of Vitamin D Supplementation on Infliximab Response in Patients With Crohn's Disease
Background: It remains uncertain whether vitD3 supplementation is beneficial for remission of Crohn's disease (CD). The influence of vitD3 supplementation on Infliximab (IFX) efficacy was retrospectively analyzed in Chinese CD…
- Conditions
- Crohn Disease, Vitamin D Deficiency, Vitamin D Supplement
- Trial name
- NCT04606017
- Testing
- Caltrate Pill
- Where
- China
- Volunteers
- 70 people
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Vitamin D Deficiency
Effect of Vitamin D-biofortified Eggs on Wintertime Serum 25-hydroxyvitamin D in Adults: Randomized Controlled Trial
While there have been a considerable number of studies on the impact of additional vitamin D in the diets of hens on the resulting egg vitamin D content, the effect of consumption of such vitamin D-enhanced eggs on vitamin D…
- Trial name
- EnhanceDeggs (NCT02678364)
- Testing
- Control eggs, Vitamin D3 eggs, 25-Hydroxyvitamin D3 eggs
- Where
- Ireland
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- University College Cork
Hip Fracture
A Randomised, Controlled Comparison of Vitamin D Strategies is Acute Hip Fracture Patients
The purpose of the study is to determine the best dose of Vitamin D to give to hip fracture patients to achieve the optimal therapeutic level.
- Trial name
- NCT00424619
- Testing
- Vitamin D2
- Volunteers
- 64 people
- Sponsor
- McMaster University
Renal Osteodystrophy
Low Magnitude Mechanical Stimuli Effects on Bone Structure in ESRD
The proposed 6 month pilot and feasibility randomized trial will evaluate LMMS as an anabolic stimulus to bone in 30 adults on maintenance hemodialysis.
- Trial name
- NCT00364234
- Testing
- Low magnitude mechanical stimuli
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Rheumatoid Arthritis, Vitamin D Deficiency
Treatment of Vitamin D Deficiency in Patients With Rheumatoid Arthritis
The purpose of this study is to investigate the effect of vitamin D repletion on disease activity and disability in patients with rheumatoid arthritis.
- Trial name
- NCT01426347
- Testing
- Ergocalciferol
- Where
- United States
- Volunteers
- 139 people
- Sponsor
- Johns Hopkins University
Obesity, Pediatric, Obesity, Childhood
Efficacy of Vitamin D Supplementation in Obese Children
Vitamin D deficiency is common in the general population in the United States, but is more common in overweight and obese children.
- Conditions
- Obesity, Pediatric, Obesity, Childhood, Obesity, Morbid, Vitamin D Deficiency
- Trial name
- NCT02956408
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- Columbia University
Major Depression, Vitamin D Deficiency
Effects of Vitamin D Supplementation on Depression and Inflammatory Markers
The current study is designed as a prospective partially randomized patient preference (PRPP) trial and recruit psychiatric outpatients or inpatients.
- Trial name
- NCT04898725
- Testing
- Vitamin D3
- Where
- Taiwan
- Volunteers
- 142 people
- Sponsor
- Mackay Memorial Hospital
Systemic Lupus Erythematosus, SLE
Vitamin D3 in Systemic Lupus Erythematosus
The purpose of this study is to explore the impact of vitamin D3 on the expression of alpha interferon (IFN alpha) expression in systemic lupus erythematosus (SLE) patients with vitamin D deficiency.
- Conditions
- Systemic Lupus Erythematosus, SLE, Lupus
- Trial name
- NCT00710021
- Testing
- Vitamin D3
- Where
- 8 sites in United States
- Volunteers
- 57 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Hypophosphatasia
Extension Study of Protocol ENB-002-08 - Study of Asfotase Alfa in Infants and Young Children With Hypophosphatasia (HPP)
This clinical trial studied the long term safety and efficacy of asfotase alfa in infants and young children with infantile onset HPP who completed study ENB-002-08 (NCT00744042).
- Trial name
- NCT01205152
- Testing
- asfotase alfa
- Where
- 8 sites in United States, United Arab Emirates and 1 more
- Volunteers
- 10 people
- Sponsor
- Alexion Pharmaceuticals, Inc.