Clinical trials: Deficiency, Vitamin D
Epilepsy
Effect of Vitamin D3 Supplementation on Cardiac Autonomic Nerve Function in Male Epileptic Patients With Hypovitaminosis D
The goal of this clinical trial is to see the effect of vitamin D3 supplementation on cardiac autonomic nerve function in male epileptic patients with hypovitaminosis D that weather vitamin D improves heart rate variability or…
- Trial name
- NCT07085598
- Testing
- Vitamin D
- Where
- Bangladesh
- Volunteers
- 15 people
- Sponsor
- Bangladesh Medical University
Vitamin D Deficiency, Sarcopenia
Impact of Vitamin D on 25-hydroxyvitamin D Levels and Physical Function
This one-year study will test the hypothesis that supplementation with vitamin D will improve lower extremity muscle performance in older men and women with vitamin D insufficiency.
- Trial name
- NCT02293187
- Testing
- vitamin D3
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Tufts University
Fibromyalgia, D Vitamin Deficiency
Valuation of Efficacy and Safety of Vitamin D3 Use in 80 Women Diagnosed With Fibromyalgia. Using FIQ Score and VAS.
Fibromyalgia is a disease that significantly decreases the quality of life of people who suffer from it, has great repercussions at the socio-economic level due to the incapacity it produces.
- Trial name
- NCT03369379
- Testing
- D3 Vitamin
- Where
- Mexico
- Volunteers
- 80 people
- Sponsor
- Universidad Autonoma de Nuevo Leon
Vitamin D Deficiency, Clomiphene Allergy
Effect of Vitamin D Oral Supplementation in Poly Csytic Ovarian Women Resistant to Clomiphene Citrate
effect of vitamin D oral supplementation in poly csytic ovarian women resistant to clomiphene citrate
- Conditions
- Vitamin D Deficiency, Clomiphene Allergy, Polycystic Ovary Syndrome
- Trial name
- NCT04916925
- Testing
- Vitamin D, Clomid
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- rana alaaeldin aly ibrahim nasr
X-linked Hypophosphatemia
An Extension Study of KRN23 in Adults With X-Linked Hypophosphatemia
The primary purpose of this study is to assess the safety and efficacy of repeated subcutaneous (SC) injections of KRN23 in adult subjects with X-Linked Hypophosphatemia (XLH).
- Trial name
- NCT01571596
- Testing
- KRN23
- Where
- 6 sites in United States, Canada
- Volunteers
- 23 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Hypophosphatasia (HPP)
Safety and Efficacy of Asfotase Alfa in Juvenile Patients With Hypophosphatasia (HPP)
This clinical trial studied the safety and efficacy of asfotase alfa in children with HPP compared to a historical control group.
- Trial name
- NCT00952484
- Testing
- asfotase alfa
- Where
- 2 sites in United States, Canada
- Volunteers
- 13 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Familial Hypophosphatemic Rickets
Calcimimetics in Hypophosphatemic Rickets
Currently, large oral doses of phosphate and 1,25(OH)2D (calcitriol) are the standard treatment of patients with familial hypophosphatemic rickets (XLH).
- Trial name
- CHR (NCT00844740)
- Testing
- Cinacalcet
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Children's Mercy Hospital Kansas City
Female Infertility, Polycystic Ovary Syndrome
Vitamin D Supplementation and Improvement of PCOS Therapy and IVF Outcomes in Infertile Saudi Women
This randomized double-blinded-controlled clinical trial consists of two protocols as follow: protocol 1: evaluation of the therapeutic effects of Vitamin D3 supplement when given alone and in combination with an…
- Conditions
- Female Infertility, Polycystic Ovary Syndrome, Pathologic Processes, Vitamin D Deficiency
- Trial name
- NCT05106712
- Testing
- Vitamin D3, Clomiphene Citrate, Letrozole
- Volunteers
- 700 people
- Sponsor
- Umm Al-Qura University
Asthma, Vitamin D Deficiency
A Study to Investigate the Effect of Vitamin D3 Supplementation on Asthma Symptoms in Adults With Asthma (VITDAS)
Asthma is a disease characterised by chronic inflammation of the airways leading to symptoms including periods of shortness of breath, wheezing and a tight chest due to airway narrowing in affected patients.
- Conditions
- Asthma, Vitamin D Deficiency, Nutritional Deficiency, Inflammation
- Trial name
- VITDAS (NCT04117581)
- Testing
- Vitamin D3
- Where
- United Kingdom
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Chester
Chronic Kidney Disease
Ergocalciferol in Chronic Kidney Disease
To examine the effect of ergocalciferol treatment on 25-hydroxyvitamin D and PTH levels in patients with CKD stage 3 and 4
- Trial name
- NCT00411294
- Where
- United States
- Sponsor
- Saint Louis VA Medical Center
Urticaria, Vitamin D Deficiency
A Trial to Evaluate the Effect of Vitamin D Supplementation in Patients With Chronic Urticaria
This study will be an assessor-blind, randomized controlled trial in patients with CSU. The investigators will compared Vit D level in patients with Chronic spontaneous urticaria (CSU) and controls.
- Trial name
- NCT03991845
- Testing
- Vit D
- Where
- India
- Volunteers
- 262 people, healthy volunteers welcome
- Sponsor
- Post Graduate Institute of Medical Education and Research, Chandigarh
Cardiovascular Disease, Vitamin D Deficiency
Acute Effect of Systemic Stress on Measured Blood Concentrations of 25 (OH) Vitamin D
Each patient who is admitted for preoperative preparation for elective open heart surgery at Intermountain Medical Center will be invited to participate in this study.
- Trial name
- ASSESS-D (NCT02460211)
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- Intermountain Health Care, Inc.
Dementia, Viral Infection
Electronic Medical Records to Increase Adherence to the Choosing Wisely Recommendations
Audit and Feedback (A\&F), a strategy aimed at promoting modified practice through performance feedback, is a method to change provider behaviour and reduce unnecessary medical services.
- Conditions
- Dementia, Viral Infection, Vitamin D Deficiency
- Trial name
- NCT05385445
- Testing
- Audit and Feedback
- Where
- Canada
- Volunteers
- 239 people, healthy volunteers welcome
- Sponsor
- University of Manitoba
Benign Paroxysmal Positional Vertigo (BPPV), Vestibular Migraine
Metabolic Disorders and Vertigo
The purpose of investigation is to assess the levels of metabolic factors (hydroxyvitamin D, homocysteine) between patients with vestibular dysfunction of peripheral origin (BPPV) and central origin (vestibular migraine).
- Conditions
- Benign Paroxysmal Positional Vertigo (BPPV), Vestibular Migraine, Central Positional Vertigo, Vestibular Neuritis
- Trial name
- NCT04935970
- Testing
- diagnostic blood test, neuropsychological test
- Where
- Russia
- Volunteers
- 100 people
- Sponsor
- I.M. Sechenov First Moscow State Medical University
PCOS, Vitamin D Deficiency
Vitamin D for Polycystic Ovary Syndrome Clomiphene Resistant Women
This study is determining the therapeutic effect of Vitamin D supplements to Pcos clomiphene resistant polycystic ovarian syndrome Women. Half of patients will receive Vitamin D with metformin while other half metformin only.
- Trial name
- NCT04010942
- Testing
- Vit D, Metformin, Clomiphene
- Where
- Egypt
- Volunteers
- 120 people
- Sponsor
- Ain Shams University
Vitamin C Deficiency, Vitamin D Deficiency
Vitamin Deficiency and Blood Pressure in Hospitalized Jewish General Hospital (JGH) Patients
There is suggestive evidence that vitamin C and vitamin D deficiency may increase blood pressure across the range of blood pressures from normal to elevated.
- Trial name
- NCT00921622
- Testing
- Vitamin D, Vitamin C
- Where
- Canada
- Volunteers
- 50 people
- Sponsor
- Jewish General Hospital
Crohn's Disease, Vitamin D Deficiency
Trial of High Dose Vitamin D in Patient's With Crohn's Disease
Crohn's disease is more common in areas of the world with less sunlight exposure. Sunlight is a major source of vitamin D. There is some research to suggest that patient's with higher vitamin D levels are less likely to undergo…
- Trial name
- RODIN-CD (NCT02208310)
- Testing
- Cholecalciferol 10,000 IU, Cholecalciferol 400 IU
- Where
- 4 sites in United States
- Volunteers
- 11 people
- Sponsor
- University of Michigan
Vitamin D Deficiency, Dental Caries
Maternal Vitamin D Levels in Pregnancy and Dental Caries in Children
The main aim of this study is to investigate potential associations between maternal pre- and postnatal vitamin D level and oral health outcomes (caries and developmental defects of enamel) in their children at 7-9 years of age.
- Conditions
- Vitamin D Deficiency, Dental Caries, Dental Enamel Hypoplasia
- Trial name
- NCT03273725
- Testing
- Dental examination including taking a saliva sample.
- Volunteers
- 178 people, healthy volunteers welcome
- Sponsor
- Tannhelsetjenestens Kompetansesenter Midt-Norge
Vitamin D Deficiency
The Effect of Vitamin D on Bone Accretion and Turn-Over in Young Girls
Objectives To evaluate the effect of increased vitamin D intake on vitamin D status, bone mass and bone turnover in young girls aged 12-13.
- Trial name
- NCT00267540
- Testing
- cholecalciferol (D3) (vitamin)
- Where
- Denmark
- Volunteers
- 225 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
X-linked Hypophosphatemia
A Study of KRN23 in X-linked Hypophosphatemia
The primary objective of this study is to assess the safety and tolerability of KRN23 after a single intravenous (IV) and subcutaneous (SC) administration in XLH patients.
- Trial name
- NCT00830674
- Testing
- KRN23
- Where
- 4 sites in United States
- Volunteers
- 42 people
- Sponsor
- Kyowa Kirin Co., Ltd.
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