Clinical trials: Vitamin D3
Vitamin D Deficiency
Preoperative Vitamin D Levels and Respiratory Complications of General Anesthesia
Vitamin D deficiency is a commonly observed health problem in the world. With a role in many chronic diseases and especially lung diseases, the importance of vitamin D deficiency in anesthesia management is increased.
- Trial name
- VitaminD (NCT03342651)
- Testing
- Vitamin D
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- Ordu University
Alveolar Ridge Preservation
Autologous Tooth Root in Ridge Preservation
Use your extracted teeth for routine dental care to make an autologous root slice, cover it in your extraction cavity, and give you Vit.D3 locally with the bone material you use.
- Trial name
- NCT05601531
- Testing
- Autologous Tooth Root, Vit.D3, bone graft
- Where
- Taiwan
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Keratoconus
Thyroid Gland Dysfunction and Vitamin D Polymorphism in Keratoconus
This prospective study the thyroid gland dysfunction and vitamin D receptor polymorphism in keratoconus patients
- Trial name
- NCT05073601
- Testing
- ELISA,DNA extraction
- Where
- Egypt
- Volunteers
- 262 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Diarrhea-predominant Irritable Bowel Syndrome
Effects of Vitamin D on Gut Microbiota, Intestinal Barrier in IBS-D Patients
Irritable bowel syndrome (IBS) is a common functional gastrointestinal disease. Evidence suggests that the concentration of serum VD is decreased in IBS patients, particularly in IBS-D.
- Trial name
- NCT05593367
- Where
- China
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Xi'an Jiaotong 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
Vitamin D Deficiency
A Comparative Dissolution and Absorption Study of an Orodispersible Powder, Chewable Tablet and Soft Gel Capsule Vitamin D3 Supplementation
This is an open-labelled, randomized controlled clinical trial aimed to compare the pharmacokinetics of an orodispersible vs a soft gelatin vitamin supplementation in vitamin D deficient healthy adults.
- Trial name
- NCT05706259
- Testing
- Soft gelatin 200000 IU vitamin D3 capsule, Orodispersible (sachet) 200000 IU vitamin D3
- Where
- Pakistan
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Liaquat University of Medical & Health Sciences
Secondary Hyperparathyroidism
Suspected Deficient Activation of Vitamin D in Patients With Secondary Hyperparathyroidism
The purpose of this study is to determine if a reduction in the enzyme 1-hydroxylase, which activates Vitamin D, is the cause of overactivity of the parathyroid glands (called secondary hyperparathyroidism - normal blood calcium…
- Trial name
- 1hydroxylase (NCT00754442)
- Testing
- Teriparatide
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Postmenopausal Osteoporoses
Clinical Study on Treatment of Postmenopausal Osteoporosis (Kidney Deficiency and Blood Stasis Syndrome) With Xulin Jiangu Granules
Osteoporosis is a common senile disease with a high incidence. The Chinese medicine differentiation treatment has small side effects and can be taken for a long time, which has certain advantages.
- Trial name
- CSOPOPWXJG (NCT03563235)
- Testing
- Xulin Jiangu granules, Calcitriol capsules
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Fujian Academy of Traditional Chinese Medicine
Vitamin D Deficiency, Pre-Eclampsia
Effect of Vitamin D3 Supplementation in Pregnancy on Risk of Pre-eclampsia
Vitamin D deficient pregnant ladies were selected and randomized into 2 groups for routine daily dose of multivitamin (400IU vitamin D3) versus maximum safest treatment daily dose (4000IU vitamin D3).
- Trial name
- NCT03101150
- Testing
- 400 IU Vitamin D3, 4000 IU Vitamin D3
- Volunteers
- 179 people, healthy volunteers welcome
- Sponsor
- King Fahad Medical City
Ageing
ICOPE INTENSE-K Pilot Study
ICOPE could constitute the reference model of care for healthy aging. More specifically, our hypothesis is that the intervention implemented in ICOPE may directly or indirectly prevent immuno-senescence, the loss of mobility and…
- Trial name
- NCT07048860
- Testing
- ICOPE intense intervention, Ketone Ester (KE) supplementation, Vitamin D3
- Where
- France
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University Hospital, Toulouse
Vitamin D Deficiency
Effects of Vitamin D Supplementation on Strength, Bone Density, and Injury Risk in Collegiate Athletes
The goal of this study is to determine whether Vitamin D supplementation improves strength and bone density, and reduces the risk of injury in collegiate athletes.
- Trial name
- NCT03151174
- Testing
- Vitamin D 10000 UNT, Vitamin D 5000 UNT
- Where
- United States
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Virginia Polytechnic Institute and State University
Cardiovascular Risk Factors, Insulin Resistance
Pilot Validation of the STELA Preventive Medicine Platform to Reduce Modifiable Health Risk Factors in Adults (CPM-STELA)
This study evaluates a comprehensive digital health platform called STELA, developed at the Center for Preventive Medicine (CPM) of AGEL Hospital Trinec-Podlesi in Czechia.
- Conditions
- Cardiovascular Risk Factors, Insulin Resistance, Obesity, Dyslipidemias
- Trial name
- CPM-STELA (NCT07551960)
- Testing
- STELA Digital Preventive Medicine Platform, Comprehensive Preventive Health Assessment
- Where
- Czechia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Nemocnice AGEL Trinec-Podlesi a.s.
Metabolic Disease, Mental Health Wellness 1
Healthy Early Life Moments in Singapore
This study aims to assess whether an integrated continuum of care from the preconception period, across maternity until the first 18 months of life, can promote maternal metabolic and mental health, as well as offspring health…
- Conditions
- Metabolic Disease, Mental Health Wellness 1, Lifestyle Risk Reduction, Maternal Obesity
- Trial name
- HELMS (NCT05207059)
- Testing
- HELMS Lifestyle Intervention
- Where
- Singapore
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- KK Women's and Children's Hospital
Birth Weight
Healthy Mums, Healthy Babies: Multiple Micronutrient Supplementation in Ethiopia
Background: This programme effectiveness study responds to the need for evidence on the effect on birthweight of switching from iron-folic acid supplementation (IFA) to multiple micronutrient supplementation (MMS) as part of…
- Trial name
- NCT05708183
- Testing
- Multiple micronutrient supplementation (MMS), Iron folate supplementation (IFA)
- Where
- 6 sites in Ethiopia
- Volunteers
- 25,620 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Cardiovascular Disease
Does Deficiency in Vitamin D Induced Hypercoagulation or Thrombin Generation
Working hypothesis and aims: The aim of our study is to investigate whether vitamin D deficiency could cause increased thrombin generation and a hypercoagulable state healthy volunteers.
- Trial name
- NCT01761669
- Testing
- Vitamin D
- Where
- Israel
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- HaEmek Medical Center, Israel
Overweight, Obesity
Vitamin D and Type 2 Diabetes Risk in UK Adults
This study is exploring the association between vitamin D and Type 2 diabetes risk in normal weight and overweight UK adults.
- Trial name
- NCT04339530
- Testing
- Normal weight and overweight adults
- Where
- United Kingdom
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Liverpool Hope University
Premenstrual Syndrome
Altered Calcium and Vitamin D in PMDD or Severe PMS
Osteoporosis has become one of the most widely recognized disorders of our times affecting an estimated 25 million women in this country.
- Trial name
- NCT00005119
- Testing
- Measures of calcium and bone turnover
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Vitamin D Deficiency, Orthostatic Intolerance
Vitamin D Deficiency and Dysautonomia
In previous work the investigator identified a group of children between the ages of 10-18 years whose diagnostic workup for chronic nausea unexplained by conventional diagnostic tests has unexpectedly revealed underlying…
- Conditions
- Vitamin D Deficiency, Orthostatic Intolerance, Nausea
- Trial name
- NCT03032328
- Testing
- vitamin D supplement
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Healthy
Vitamin D Needs of Early Adolescent Children
While a large percentage of children have low blood vitamin D levels, the significance of these low levels and the impact on health is unclear.
- Trial name
- NCT00931580
- Testing
- Vitamin D3
- Where
- 3 sites in United States
- Volunteers
- 323 people, healthy volunteers welcome
- Sponsor
- University of Georgia
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