Clinical trials: Deficiency, Vitamin D
Endstage Renal Disease
The Effect of Increasing Dialysate Magnesium on Calcification Propensity in Subjects on Haemodialysis
The purpose of this trial is to examine the effect of increasing dialyse magnesium on serum calcification propensity in subjects with end-stage renal disease treated with haemodialysis.
- Trial name
- NCT02977117
- Testing
- Dialysate magnesium (1.0 mmol/L), Dialysate magnesium (0.5 mmol/L)
- Where
- Denmark
- Volunteers
- 59 people
- Sponsor
- Iain Bressendorff
Hidradenitis Suppurativa, Mediterranean Diet
Nutritional Status and Hidradenitis Suppurativa (Acne Inversa)
Hidradenitis suppurativa (HS) is a chronic inflammatory, debilitating skin disorder. The exacerbating factors of HS include nutrition and adiposity.
- Conditions
- Hidradenitis Suppurativa, Mediterranean Diet, Body Composition, Vitamin D Deficiency
- Trial name
- NutriHidra (NCT03683238)
- Testing
- Mediterranean Diet
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Federico II University
Carpal Tunnel Syndrome, Vitamin D Deficiency
Comparıson Of Electromyography Results Before And After Vıtamın D Treatment In Patıents Wıth Carpal Tunnel Syndrome
Therefore, we aimed to evaluate the effectiveness of vitamin D replacement therapy on pain, electrophysiological parameters, ultrasonographic measurement results and functional status scales in CTS patients with low serum vitamin…
- Trial name
- NCT06282640
- Testing
- Vitamin D
- Where
- Turkey (Türkiye)
- Volunteers
- 87 people
- Sponsor
- Dr. Ayşe Güç
Pancreas Cancer, Vitamin D Deficiency
High-dose Vitamin D3 in Pancreas Cancer
Different studies have shown that a deficiency in vitamin D (≤20ng/mL) results in higher rates in morbidity and mortality rates in cancer patients.
- Conditions
- Pancreas Cancer, Vitamin D Deficiency, Quality of Life
- Trial name
- VITdCUT (NCT03472833)
- Testing
- High-dose, Standard dose
- Where
- Austria
- Volunteers
- 25 people
- Sponsor
- Medical University of Graz
Vitamin D-deficient, Insulin-resistant
Role of Vitamin D in the Prevention and Treatment of Diseases Associated With Insulin Resistance
Prospective, randomized and placebo-controlled 6-month trial of vitamin D supplementation in 130 Caucasian and vitamin D-deficient men and women aged 25 years and over.
- Trial name
- VIDIR (NCT01779908)
- Testing
- Vitamin D
- Where
- Canada
- Volunteers
- 96 people
- Sponsor
- CHU de Quebec-Universite Laval
Vitamin D Deficiency, Chemotherapy Effect
Vitamin D Can Increase Pathological Response of the Breast Cancer Patients Treated With Neoadjuvant Therapy
The aim of the study is to evaluate the relationship between the vitamin D replacement and pathological response in patients undergoing neoadjuvant therapy according to different molecular sub types.
- Conditions
- Vitamin D Deficiency, Chemotherapy Effect, Pathology
- Trial name
- NCT03986268
- Testing
- Vit D
- Where
- Turkey (Türkiye)
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Florence Nightingale Hospital, Istanbul
Crohn's Disease, Vitamin D Deficiency
Exploring the Effects of Vitamin D Supplementation on the Chronic Course of Patients With Crohn's Disease With Vitamin D Deficiency
Aims:Prospectively observe the effects of Vitamin D drops supplementation on the chronic course of Crohn's disease patients, analyze whether the effect of Vitamin D drops on CD patients is affected by factors such as disease…
- Conditions
- Crohn's Disease, Vitamin D Deficiency, Vitamin D Supplement
- Trial name
- NCT04308850
- Testing
- Vitamin D drops
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Covid19, Corona Virus Infection
Clinical Outcomes of High Dose Vitamin D Versus Standard Dose in COVID-19 Egyptian Patients
Vitamin D is a secosteroid hormone which may have beneficial role in reducing COVID-19 adverse outcomes by first regulating the renin angiotensin system (RAS).
- Conditions
- Covid19, Corona Virus Infection, Cytokine Storm, Vitamin D Deficiency
- Trial name
- NCT04738760
- Where
- Egypt
- Volunteers
- 116 people
- Sponsor
- Ain Shams University
Obesity, Vitamin D Deficiency
Efficacy of Vitamin D Supplementation in Bariatric Surgery Patients
As the use of bariatric surgery for treatment of extreme obesity adults continues to rise, clinicians must be aware of pre-existing nutritional deficiencies in overweight and obese patients.
- Trial name
- NCT01385098
- Testing
- Vitamin D3 and Calcium
- Where
- United States
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Vadim Sherman, MD
Age-related Macular Degeneration, Vitamin D Deficiency
Omega 3 and Vitamin D Dosage in a Population With Moderate to High Risk of AMD
Objectives: The investigators conducted a prospective study in Belgium with the objective to determine the proportion of subjects identified at moderate-to-high risk for AMD, based on the STARS® questionnaire, in need of…
- Trial name
- OVID-AMD (NCT04482465)
- Testing
- blood sample
- Where
- Belgium
- Volunteers
- 50 people
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Arterial Hypertension, Vitamin D Deficiency
Styrian Vitamin D Hypertension Trial
In this randomized, double-blind, placebo-controlled trial we plan to enrol 200 vitamin D deficient hypertensive patients. Our main objective is to evaluate whether vitamin D3 supplementation with 2,800 IU daily for 8 weeks has…
- Trial name
- NCT02136771
- Testing
- Vitamin D3
- Where
- Austria
- Volunteers
- 200 people
- Sponsor
- Medical University of Graz
Tibial Fracture
Vitamin D Supplement for Patients With Tibial Fracture
The purpose is to study: 1. the frequency of vitamin D deficiency at patients with tibial fracture treated with an external ring fixator 2. if vitamin D supplement facilitates fracture healing 3.
- Trial name
- NCT01955577
- Testing
- Vitamin D3 cholecalciferol
- Where
- Denmark
- Volunteers
- 130 people
- Sponsor
- Northern Orthopaedic Division, Denmark
Vitamin D Deficiency
Vitamin D Supplementation of Lactating Mothers
The investigators would like to test the hypothesis that maternal vitamin D supplementation during lactation in dose 1200IU/d (400IU from multivitamins + 800 IU cholecalciferol) is more effective than 400IU/d (400IU from…
- Trial name
- MAVID (NCT01506557)
- Testing
- cholecalciferol
- Where
- 5 sites in Poland
- Volunteers
- 174 people, healthy volunteers welcome
- Sponsor
- Children's Memorial Health Institute, Poland
Breast Cancer, Obesity
Vitamin D, Diet and Activity Study
Experimental and human data suggests that vitamin D could protect against breast cancer. Overweight/obese individuals are at increased risk of low vitamin D levels.
- Conditions
- Breast Cancer, Obesity, Hypovitaminosis D
- Trial name
- ViDA (NCT01240213)
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 218 people, healthy volunteers welcome
- Sponsor
- Fred Hutchinson Cancer Center
COVID, Vitamin D Deficiency
The LEAD COVID-19 Trial: Low-risk, Early Aspirin and Vitamin D to Reduce COVID-19 Hospitalizations
Although the novel SARS-CoV-2 virus (COVD-19) is classified as an acute respiratory infection, emerging data show that morbidity and mortality are driven by disseminated intravascular coagulopathy.
- Conditions
- COVID, Vitamin D Deficiency, Coagulopathy, Disseminated Intravascular Coagulation
- Trial name
- LEAD COVID-19 (NCT04363840)
- Testing
- Aspirin 81 mg, Vitamin D
- Sponsor
- Louisiana State University Health Sciences Center in New Orleans
Ectopic Pregnancy, Vitamin D Deficiency
Vitamin D in Ectopic Pregnancies
According to recent evidences, vitamin D was found to have important roles in female reproductive system, both in physiological and also pathological mechanisms.
- Trial name
- NCT03894735
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people
- Sponsor
- Kanuni Sultan Suleyman Training and Research Hospital
Hyperparathyroidism
Effects of Vitamin D Replacement in Patients With Primary Hyperparathyroidism (PHPT)
The goal of this clinical research study is to learn how the standard practice of giving Vitamin D supplements to patients with a Vitamin D deficiency may affect the size of the parathyroid glands in patients with PHPT and a…
- Trial name
- NCT00538720
- Testing
- Vitamin D, Four-dimensional computed tomography (4DCT)
- Where
- United States
- Volunteers
- 22 people
- Sponsor
- M.D. Anderson Cancer Center
Vitamin D Deficiency, Vitamin; Excess Vitamin D (Nutritional)
Vitamin D Supplements on Markers for Cardiovascular Disease and Diabetes: an Individual Participant Data Meta-analysis
This meta-analysis will be conducted to study the effect on vitamin D supplements on markers for cardiovascular disease and diabetes using individual participant data from 12 RCTs.
- Trial name
- NCT02551835
- Volunteers
- 2,945 people, healthy volunteers welcome
- Sponsor
- Amsterdam UMC, location VUmc
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
Overweight and Obesity, Vitamin D Deficiency
Magnesium and Vitamin D Supplementation and Cardiometabolic Outcomes
The purpose of this study is to investigate the effects of a combined vitamin D and magnesium supplementation on parathyroid hormone and cardiometabolic health in persons living with obesity.
- Conditions
- Overweight and Obesity, Vitamin D Deficiency, Magnesium Deficiency, Cardiovascular Risk Factor
- Trial name
- NCT03134417
- Testing
- Vitamin D and magnesium, Vitamin D
- Where
- United States
- Volunteers
- 109 people, healthy volunteers welcome
- Sponsor
- Drexel University
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