Clinical trials: Cholecalciferol
Urinary Bladder, Overactive, Overactive Bladder
Vitamin D Treat-to-Target Strategy for Children With Overactive Bladder-Wet
The purpose of this clinical trial is to investigate whether adding high-dose vitamin D (2,400 IU daily) to standard medical treatment (solifenacin combined with behavioral therapy) is more effective than standard treatment alone…
- Conditions
- Urinary Bladder, Overactive, Overactive Bladder, Urinary Incontinence, Urge
- Trial name
- NCT06201013
- Testing
- urotherapy, Solifenacin Succinate, Vitamin D3
- Where
- China
- Volunteers
- 180 people
- Sponsor
- Children's Hospital of Chongqing Medical University
Implant Stability With Vitamin D Deficiency
Stability of Dental Implants Placed in Patients With Vitamin D Deficiency Using Sequential Drilling Versus a New One Single Drilling Design
Vitamin D considers as the most potent effect on calcium level in blood it was found that vitamin D target mainly bone tissue intestine and kidney for calcium absorption In bone, vitamin D stimulates mainly the activity of…
- Trial name
- NCT03695562
- Testing
- sequential drilling technique
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Vitamin D Deficiency
A Single Wintertime Dose of Vitamin D3 to Prevent Winter Decline in Vitamin D Status in Healthy Adults
The purpose of this study is to determine if a single dose of vitamin D administered orally in the fall will provide adequate vitamin D in healthy individuals for the duration of the winter, during which vitamin D levels are…
- Trial name
- NCT01924910
- Testing
- 250,000 IU cholecalciferol as single, oral dose
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Emory University
Rectal Cancer, Stage III Rectal Cancer
The Role of Vitamin D in Predicting Response to Neoadjuvant Therapy in Patients With Rectal Cancer
It has been reported that better local control is achieved and sphincters are preserved at a higher rate with curative resections performed after neoadjuvant chemoradiotherapy in patients with locally advanced rectal cancers.
- Trial name
- NCT04857203
- Testing
- Vitamin D
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Istanbul Training and Research Hospital
Atopic Dermatitis
Effect of Oral Vitamin D Supplement on Atopic Dermatitis; A Clinical Trial With Staphylococcus Aureus Colonization Determination
Background: Increase in skin colonization of Staphylococcus aureus (S. aureus) in atopic dermatitis patients (AD) resulted from the reduction of cathelicidin production in these patients plays the important role in pathogenesis…
- Trial name
- NCT02058186
- Testing
- oral vitamin D
- Where
- Thailand
- Volunteers
- 20 people
- Sponsor
- Srinakharinwirot University
Pneumonia
Vitamin-D Supplementation: Impact on Severe Pneumonia Among Under-five Children
Background: Burden: Pneumonia is the leading cause of morbidity and mortality in under-five children, particularly in developing countries.
- Trial name
- Vitamin-D (NCT02185196)
- Testing
- Vitamin D3
- Where
- Bangladesh
- Volunteers
- 197 people
- Sponsor
- International Centre for Diarrhoeal Disease Research, Bangladesh
Heart Failure
Micronutrient Supplementation in Patients With Heart Failure
There is some evidence to suggest that patients with heart failure may have a reduced dietary intake of vitamins and essential minerals (micronutrients) and that this may worsen the function of the heart.
- Trial name
- MINT-HF (NCT01005303)
- Testing
- Forceval plus 50 micrograms Vitamin D3
- Where
- United Kingdom
- Volunteers
- 79 people
- Sponsor
- Belfast Health and Social Care Trust
Vitamin D Deficiency
The Effect of a Meal on Vitamin D Absorption
This study seeks to determine if vitamin D3 absorption in healthy adults will be enhanced in the presence of a meal and if the enhancement will be greater when the meal is low as opposed to high in fat content.
- Trial name
- NCT01268176
- Testing
- cholecalciferol
- Where
- United States
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Tufts University
Atrial Fibrillation, Hypertension
Effect of Vit D on New-onset AF in Hypertension
Atrial fibrillation (AF), an important cause of cardiac mortality and morbidity is the most common type of cardiac arrhythmia in clinical practice.
- Trial name
- NCT02298738
- Volunteers
- 227 people
- Sponsor
- Ankara University
Multiple Sclerosis, Endocrine System Diseases
Trabecular Bone Score in Multiple Sclerosis
Assess bone quality in MS patients through TBS and evaluate the potential effects exerted by different drugs used in MS treatment, which may affect BMD and TBS in MS patients
- Conditions
- Multiple Sclerosis, Endocrine System Diseases, Neurologic Disorder
- Trial name
- NCT05811689
- Testing
- sm tbs group
- Where
- Italy
- Volunteers
- 300 people
- Sponsor
- IRCCS Centro Neurolesi Bonino Pulejo
Bone Density
Vitamin D and Calcium Supplement Attenuate Bone Loss Among HIV- Infected Patients Receiving Tenofovir Disoproxil Fumarate, Lamivudine or Emtricitabine and Efavirenz
The purpose of this study is to determine whether calcium and vitamin D supplement can attenuate bone loss in HIV-infected-patients in Thailand who receive Tenofovir disoproxil fumarate.
- Trial name
- NCT02827643
- Testing
- TDF/3TC or FTC/EFV plus Calcium and vitamin D supplement, TDF/3TC or FTC/EFV
- Where
- Thailand
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Mahidol University
Asthma, Vitamin D Deficiency
Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations.
The role of vitamin D in respiratory health remains uncertain. Whether vitamin D reduces clinically important exacerbations of childhood asthma remains uncertain.
- Trial name
- NCT01395589
- Testing
- Vitamin D
- Where
- Qatar
- Volunteers
- 597 people, healthy volunteers welcome
- Sponsor
- Hamad Medical Corporation
Hypoparathyroidism
Translation and Validation of the Hypoparathyroidism Patient Experience Scales (HPES) Questionnaire in Greek
This is a crossectional study that will be conducted at several tertiary centers in Greece. To participate in the study, patients should be ≥18 years of age, fluent in Greek language, diagnosed with chronic HP, on optimal…
- Trial name
- HPES (NCT07160348)
- Testing
- Questionnaire and Physical Exam
- Volunteers
- 200 people
- Sponsor
- Aristotle University Of Thessaloniki
SLE
SLE Severity Linked to Vitamin D Via Treg Cells in Pediatric Patients
SLE has been characterized by dysfunctional or decreased numbers of Treg cells because one of it function is to prevent autoimmunity.
- Trial name
- NCT07069348
- Testing
- No intervention
- Where
- Indonesia
- Volunteers
- 32 people
- Sponsor
- Wisnu Barlianto
Thalassemia Major
The Effect of Vitamin D Supplementation on Calcium Excretion in Thalassemia: a Dose Response Study
The purpose of this pilot study is to determine the effect of various doses of vitamin D supplementation on vitamin D stores and calcium excretion in the urine in subjects with Thalassemia Major (TM).
- Trial name
- NCT01323608
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Weill Medical College of Cornell University
Maxillary Canine Retraction, Local Calcitriol Delivery
Clinical Evaluation of Local Calcitriol Delivery on Maxillary Canine Retraction
This study will evaluate the effect of locally applied Calcitriol on dental and skeletal changes during upper canine retraction.
- Conditions
- Maxillary Canine Retraction, Local Calcitriol Delivery, Orthodontic Tooth Movement
- Trial name
- CALCR25 (NCT07200349)
- Testing
- Calcitriol Delivery
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Pre-eclampsia
Dietary Intervention Program for Pre-eclampsia in Women at Risk
Aims: Pre-eclampsia is one of the leading causes of maternal and perinatal morbidity and mortality worldwide. Preeclampsia frequency is 2-8% from all pregnancies.
- Trial name
- NCT02706158
- Testing
- 1500 mg Calcium and 1200 IU Vitamin D for 2 months, balanced diet
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Rambam Health Care Campus
D Vitamin Deficiency Patients
Vitamin D Supplementation and the Immune Response
The main objective is to assess the variation in plasma levels of cathelicidin before and after influenza vaccination. All bibliographic data suggests that supplementation vitamin D in the elderly often deficient in this vitamin…
- Trial name
- NCT01893385
- Testing
- Vitamin D (drug)
- Where
- France
- Volunteers
- 37 people
- Sponsor
- University Hospital, Clermont-Ferrand
Unspecified Adult Solid Tumor, Protocol Specific
Calcitriol, Ketoconazole, and Dexamethasone in Treating Patients With Metastatic or Unresectable Solid Tumors
RATIONALE: Calcitriol may cause solid tumor cells to look more like normal cells, and to grow and spread more slowly. Ketoconazole and dexamethasone may help calcitriol work better by making tumor cells more sensitive to the…
- Trial name
- NCT00238225
- Testing
- calcitriol, dexamethasone, ketoconazole
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- Roswell Park Cancer Institute
Age-related Macular Degeneration
Age-related Macular Degeneration (AMD) in the Vitamin D and Omega-3 Trial (VITAL)
The VITamin D and OmegA-3 Trial (VITAL; NCT 01169259) is a randomized clinical trial in 25,875 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (Omacor fish…
- Trial name
- NCT01782352
- Testing
- Omega-3 fatty acids (fish oil), Vitamin D3
- Where
- United States
- Volunteers
- 25,871 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
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