Clinical trials: Cholecalciferol
Renal Osteodystrophy
Cholecalciferol Versus Doxercalciferol in the Treatment of Secondary Hyperparathyroidism in Chronic Kidney Disease
The majority of patients with moderate to severe chronic kidney disease (CKD) (stages 3 and 4) develop secondary hyperparathyroidism (2°HPT), but the optimal therapy to control hyperparathyroidism in this group is unknown.
- Trial name
- NCT00285467
- Testing
- doxercalciferol, Cholecalciferol
- Where
- United States
- Volunteers
- 55 people
- Sponsor
- Indiana University
Respiratory Infection
Human Lung Responses to Respiratory Pathogens
For most individuals, the lung has a remarkable ability to deal with exposure to a variety of inhaled bacteria. Some individuals, however, do have recurrent bacterial infections, usually in the form of acute or chronic bronchitis…
- Trial name
- NCT01967628
- Testing
- Vitamin D3 (cholecalciferol)
- Where
- United States
- Volunteers
- 98 people, healthy volunteers welcome
- Sponsor
- University of Iowa
COPD, Aging
Vitamin D Supplementation and WBV in Inflammatory Markers, Strength and Body Composition in Old Patients With COPD
Verify the influence off vitamin D supplementation and a whole body vibration (WBV) protocol during 03 months in older patients chronic obstructive pulmonary disease
- Trial name
- NCT03684330
- Testing
- Vitamin D, whole body vibration (WBV)
- Where
- Brazil
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- Maíra F Pessoa
Frail Elderly Syndrome, Sarcopenia
Physical Fitness, Body Composition and Frailty in Elderly People.Exercise Program Effecsts. EXERNET Elder 3.0
One of the major changes occurring in developed societies is a significant ageing of the population. Nowadays, because of an enhanced life expectancy, 17% of the Spanish population is composed of people over 65 and the number is…
- Conditions
- Frail Elderly Syndrome, Sarcopenia, Physical Activity
- Trial name
- EXERNETElder (NCT03831841)
- Testing
- Multicomponent exercise programe
- Where
- Spain
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Universidad de Zaragoza
Vitamin D Deficiency, Fat Malabsorption
25-Hydroxyvitamin D Pharmacokinetic Study
To evaluate the pharmacokinetic parameters of orally administered 25-hydroxyvitamin D3 [25(OH)D3] and vitamin D3 from the corresponding serum concentration-time curves in healthy adults and adults with a history of intestinal…
- Trial name
- NCT03401541
- Testing
- Calcifediol, Calciferol
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Boston University
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
MULTIPLE SCLEROSIS
The Effects of Interferon Beta Combined With Vitamin D on Relapsing Remitting Multiple Sclerosis Patients
The investigators hypothesize that vitamin D supplementation may ameliorate interferon beta-induced flu-like symptoms, owing to reduced release and activity of the cytokines that are in correlation with this adverse event.
- Trial name
- NCT01005095
- Testing
- Vitamin D3
- Where
- Israel
- Volunteers
- 45 people
- Sponsor
- Carmel Medical Center
Bone Health
An Intervention Study to Investigate the Effect of B-vitamin Supplementation for 2-years on Bone Health
An intervention study to investigate the effect of B-vitamin supplementation for 2-years on bone health. This is a dual centre (UCD and University of Ulster) 2-year randomised, placebo controlled, double blind intervention.
- Trial name
- Opti-Age (NCT03892395)
- Testing
- B-vitamin supplementation on bone health, Control group; Vitamin D, a daily capsule containing 10 µg/day vitamin D
- Where
- Ireland
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University College Dublin
Healthy
Study Comparing Two Isoforms of Vitamin D Supplements for Infants
There are two different types of vitamin D - vitamin D3 (animal source) and vitamin D2 (plant source). Almost all the usual vitamin D preparations for infants available in Canadian pharmacies contain vitamin D3 which may not be…
- Trial name
- NCT01190137
- Testing
- Cholecalciferol (D3) or ergocalciferol (D2)
- Where
- Canada
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- McGill University
Hip Osteoarthritis, Knee Osteoarthritis
Fit-Joints: Getting Fit for Hip or Knee Replacement
Osteoarthritis leads to reduced independence and quality of life. Total hip replacement is a successful and cost-effective surgical intervention to relieve pain and improve functioning in patients with osteoarthritis.
- Trial name
- Fit-Joints (NCT02885337)
- Testing
- Multi-Modal Frailty Intervention, Usual Care
- Where
- 2 sites in Canada
- Volunteers
- 41 people
- Sponsor
- McMaster University
Foot Injuries and Disorders
Nutritional Supplements and Foot Surgery
This is a prospective randomized trial wherein participants will be assigned to NutraHeal™, NutraHeal Plus™, or standard of care for 1 week prior to foot surgery and 3 weeks after surgery.
- Trial name
- NCT05522179
- Testing
- NutraHeal, NutraHeal Plus
- Where
- 3 sites in United States
- Volunteers
- 46 people
- Sponsor
- NutraHeal
Diabetes Mellitus, Type 2, Hypertension
Vitamin D and Immune Mechanisms of Hypertension in Type 2 Diabetics
This trial will evaluate whether a particular type of circulating white blood cell, monocytes, from type 2 diabetics with high blood pressure and vitamin D deficiency vs.
- Conditions
- Diabetes Mellitus, Type 2, Hypertension, Vitamin D Deficiency
- Trial name
- VDIM (NCT03348280)
- Testing
- Blood draw
- Where
- 2 sites in United States
- Volunteers
- 40 people
- Sponsor
- Washington University School of Medicine
Crohn Disease
The Vitamin D in Pediatric Crohn's Disease ( ViDiPeC-2 )
The purpose of this study is to determine if vitamin D as an adjuvant therapy can improve the outcome (i.e. fewer relapses) and the quality of life, including levels of physical activity, in children diagnosed Crohn's disease…
- Trial name
- ViDiPeC-2 (NCT03999580)
- Testing
- vitamin D3
- Where
- 7 sites in Canada
- Volunteers
- 55 people
- Sponsor
- Jantchou Prevost
Hypertension, Vitamin D Deficiency
Blood Pressure in Blacks and Calcium (BBC) and Vitamin D Study
Adequate levels of vitamin D are essential for bone health at all ages but low levels of vitamin D may also negatively impact other aspects of health such as blood pressure.
- Trial name
- BBC (NCT03070483)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Loyola University
Colorectal Cancer
Magnesium Treatment on Vitamin D Metabolism in Participants Completed Personalized Prevention of Colorectal Cancer Trial
One striking observation is that a large portion of the inter-person variation in serum 25-hydroxyvitamin D (25(OH)D) levels is unexplained.
- Trial name
- NCT03265483
- Testing
- Magnesium glycinate
- Where
- United States
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Healthy
Efficacy of Multiple Micronutrient Fortified Biscuits and Deworming in Vietnamese School Children
The aim of this study is to identify the effect of a school-based food fortification intervention with multi-micronutrients with or without deworming to improve anemia, micronutrient status, cognitive function, health (morbidity…
- Trial name
- NCT00728273
- Testing
- worm treatment and multiple micronutrient fortified biscuits
- Where
- Thailand
- Volunteers
- 510 people, healthy volunteers welcome
- Sponsor
- Neys-van Hoogstraten Foundation, The Netherlands
Breast Cancer
Topical Calcipotriene Treatment for Breast Cancer Immunoprevention
This research study is studying a topical ointment called calcipotriene to see if it can stimulate the immune cells against the breast lesion in ways that would prevent its recurrence after surgical removal
- Trial name
- NCT03596073
- Testing
- Topical Calcipotriene Ointment, Topical Vaseline
- Where
- United States
- Volunteers
- 43 people
- Sponsor
- Massachusetts General Hospital
Chronic Kidney Disease
Differential Effects of Ergocalciferol and Cholecalciferol Therapies in Chronic Kidney Disease
This study is to research two questions. First, is vitamin D3 more effective than vitamin D2 in raising 25-hydroxyvitamin D [25(OH)D] levels in chronic kidney disease (CKD) patients? And secondly, what are the differential…
- Trial name
- NCT01835691
- Testing
- Vitamin D2 (ergocalciferol), Vitamin D3 (cholecalciferol)
- Where
- United States
- Volunteers
- 44 people
- Sponsor
- University of Kansas Medical Center
Age-Related Osteoporosis
Dose-dependent Effects of Vitamin D on Bone Health
We propose to conduct a randomized double blind trial of three doses of vitamin D, 400, 4000, and 10,000 International Units (IU) per day, to assess the effect on bone density and architecture as assessed by high resolution…
- Trial name
- NCT01900860
- Testing
- Vitamin D
- Where
- Canada
- Volunteers
- 311 people, healthy volunteers welcome
- Sponsor
- University of Calgary
Aortic Valve Stenosis, Multidetector Computed Tomography
The Aortic Valve DECalcification (AVADEC) Trial
Aortic stenosis is a common heart valve disease and due to the growing elderly population the prevalence is increasing. The disease is progressive with increasing calcification of the valve cusps.
- Conditions
- Aortic Valve Stenosis, Multidetector Computed Tomography, Vitamin K 2, Randomised Clinical Trial
- Trial name
- AVADEC (NCT03243890)
- Testing
- Menaquinone-7 720 µg/day including the recommended daily dose of vitamin D (25 µg/day).
- Where
- Denmark
- Volunteers
- 389 people
- Sponsor
- Axel Diederichsen
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.