Clinical trials: Vitamin D
Crohn Disease, Vitamin D Deficiency
Effects of Supplementation of Vitamin D in Patients With Crohn's Disease
Thus, the aim of the current study is to assess the influence of vitamin D deficiency and, consequently, of serum calcium deficiency in the body composition, muscular activity, bone mineral density, fatigue, and exercise…
- Conditions
- Crohn Disease, Vitamin D Deficiency, Fatigue, Sarcopenia
- Trial name
- NCT02704624
- Testing
- Vitamin D
- Where
- Brazil
- Volunteers
- 110 people
- Sponsor
- Federal University of Juiz de Fora
Vitamin D Deficiency, Injuries
Vitamin D Status Among Competitive Female Gymnast and Swimmers After Winter Time
As indoor athletes, competitive gymnasts and swimmers can face the problem of a potential vitamin D deficiency. In the last decades, indoor sports participants have been faced with the problem of an institutionalized lifestyle…
- Conditions
- Vitamin D Deficiency, Injuries, Cardiovascular Risk Factor, Nutritional Deficiency
- Trial name
- NCT03584256
- Where
- Slovenia
- Volunteers
- 31 people
- Sponsor
- University of Ljubljana
Food Allergy, Eczema
The Cork BASELINE Birth Cohort Study
The Departments of Paediatrics and Child Health, Obstetrics/Gynaecology and Nutritional Sciences, University College Cork, and the Department of Dermatology, Trinity College, Dublin have a unique and urgent opportunity to form a…
- Conditions
- Food Allergy, Eczema, Obesity
- Trial name
- BASELINE (NCT01498965)
- Where
- Ireland
- Volunteers
- 2,185 people, healthy volunteers welcome
- Sponsor
- National Children's Research Centre, Ireland
Vitamin D Deficiency
Vitamin D During Pregnancy
Vitamin D insufficiency is common globally. Pregnant women, who need an increased supply of this vitamin for the proper development of the fetus, are a significant risk group.
- Trial name
- NCT01589783
- Testing
- completion of a questionnaire, Blood draw
- Where
- Israel
- Volunteers
- 764 people, healthy volunteers welcome
- Sponsor
- Hadassah Medical Organization
HIV/AIDS, Osteoporosis
Preventing Bone Loss Among Chinese Patients With HIV on ART
The major goal of this study will be to conduct a randomized, double-blind, placebo-controlled, clinical trial of intermittent high-dose vitamin D3 supplementation (180,000IU) given at the point of care (every 3 months) after…
- Conditions
- HIV/AIDS, Osteoporosis, Bone Loss
- Trial name
- NCT03598556
- Testing
- Vitamin D3
- Where
- 6 sites in China
- Volunteers
- 600 people
- Sponsor
- Peking Union Medical College Hospital
Obesity (Disorder), Obesity
Effect of Vitamin D on Body Composition and Functionality of Older Adults
Older adults with obesity often experience a gradual loss of muscle mass and muscle strength, a condition sometimes described as sarcopenic obesity.
- Conditions
- Obesity (Disorder), Obesity, Sarcopenia, Sarcopenia in Elderly
- Trial name
- NCT07275177
- Testing
- Vitamin D
- Where
- Mexico
- Volunteers
- 29 people
- Sponsor
- Universidad Autónoma Benito Juárez de Oaxaca
Sarcoidosis, Vitamin D Insufficiency
Vitamin D Homeostasis in Sarcoidosis
This study evaluates the relationship between vitamin-D status and severity of sarcoidosis, and the effects of vitamin-D repletion in vitamin-D insufficient patients with sarcoidosis.
- Trial name
- NCT03621553
- Testing
- Ergocalciferol, Calcium Citrate with Vitamin D2
- Where
- United States
- Volunteers
- 90 people
- Sponsor
- University of Texas Southwestern Medical Center
Chronic Obstructive Pulmonary Disease
Detection of Aspergillus Fumigatus and Sensitization in COPD Patients With Bronchiectasis vs Without Bronchiectasis
A single center case-control study with 100 COPD patients will be organized to compare patients with and without bronchiectasis with regard to the presence of Aspergillus in sputum samples, Aspergillus sensitization and vitamin…
- Trial name
- NCT02332122
- Testing
- Sputum induction, Skin prick test, Questionnaires
- Where
- Belgium
- Volunteers
- 100 people
- Sponsor
- Wim Janssens
Vitamin D Deficiency
Effects of Vitamin D Supplementation During Pregnancy on Clinical Outcomes and Immune Function
Researchers at the USDA Western Human Nutrition Research Center and clinicians at UC Davis Medical Center are currently conducting a study on the effects of vitamin D supplementation during pregnancy on maternal health and immune…
- Trial name
- NCT01417351
- Testing
- 400 IU vitamin D3, 2,000 IU Vitamin D3
- Where
- 2 sites in United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research 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
Osteoporosis
The Interaction Between Calcium and Vitamin D Intake
We will study the relative importance of high calcium intake and vitamin D supplementation for calcium homeostasis, as determined by serum parathyroid hormone (PTH) and biochemical bone markers.
- Trial name
- PTH Modified (NCT00762775)
- Testing
- Calcium and vitamin D supplementation
- Where
- United States
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Winthrop University Hospital
Gingival and Periodontal Disease, Deficiency of Vitamin D3
Study of Vitamin D Supplementation on Improvement of Gums Health
There is a gap in knowledge regarding the effects of Vitamin D supplementation on periodontal status in pregnant wome. The investigators aim to evaluate the potential benefit, if any of vitamin D supplementation during pregnancy…
- Conditions
- Gingival and Periodontal Disease, Deficiency of Vitamin D3, Pregnancy
- Trial name
- VitaminD (NCT01422122)
- Testing
- Vitamin D3
- Where
- Pakistan
- Volunteers
- 115 people
- Sponsor
- Aga Khan University
Multiple Sclerosis, Vitamin D Deficiency
Safety and Immunologic Effect of Low Dose Versus High Dose Vitamin D3 in Multiple Sclerosis
The purpose of this study is to determine the safety and the immunologic effects of supplementation with low-dose and high-dose cholecalciferol (vitamin D3) in patients with multiple sclerosis.
- Trial name
- NCT01024777
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Johns Hopkins University
Vitamin D Deficiency
Effect of Vitamin D Treatment on Fatigue
Primary objective -Change in Fatigue Assesment Score (FAS) between the first visit (baseline) and 28 (+maximum 7) days after oral administration of 100 000 E vitamin D (Cholecalciferol).
- Trial name
- NCT02022475
- Testing
- Vitamin D
- Where
- Switzerland
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Chronic Kidney Disease Mineral and Bone Disorder, Renal Osteodystrophy
The Effect of Etelcalcetide on CKD-MBD
The proposed study will investigate the effects of etelcalcetide on the bone and blood-vessel health in patients with CKD-MBD. The investigators will test if etelcalcetide makes bone and blood-vessels healthier.
- Conditions
- Chronic Kidney Disease Mineral and Bone Disorder, Renal Osteodystrophy, Vascular Calcification, Hyperparathyroidism; Secondary, Renal
- Trial name
- Parsabiv-MBD (NCT03960437)
- Testing
- Etelcalcetide
- Where
- United States
- Volunteers
- 22 people
- Sponsor
- Thomas Nickolas, MD MS
MDD
Effect of Vitamin D Administration Along With SSRIs in Patients With Major Depressive Disorder
Several studies suggested low serum levels of vitamin D have been associated with depression. So, the present study is designed to investigate the effect of vitamin D administration along with SSRIs in patients with MDD.
- Trial name
- NCT03754712
- Testing
- Vitamin D3
- Where
- Bangladesh
- Volunteers
- 90 people
- Sponsor
- Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
25-hydroxyvitamin D Serum Concentrations
Trial of Vitamin D Fortified Milk
Prevalence of VDD is high worldwide, even in sunbathed equatorial regions where it had not been suspected before. The most cost-effective method for reducing population-wide VDD is through fortification of commonly consumed…
- Trial name
- NCT01909622
- Testing
- Vitamin D, No vitamin D
- Where
- 2 sites in Colombia
- Volunteers
- 80 people
- Sponsor
- University of Michigan
Glucose Intolerance During Pregnancy
Effects of Vitamin D and Prebiotic Supplementation on Glucose Control During Pregnancy
The goal of this randomized, double-blind, placebo-controlled study included pregnant women at high risk of GDM at 6-15 weeks of gestation is to investigate whether supplementation with vitamin D (1600 IU per day) or prebiotics…
- Trial name
- NCT06553729
- Testing
- Vitamin D3, Prebiotics
- Where
- 2 sites in China
- Volunteers
- 500 people
- Sponsor
- Huazhong University of Science and Technology
Vitamin D Deficiency
Nutritional Requirements for Vitamin D in Pregnant Women
Randomised, placebo-controlled dose-response intervention study with vitamin D3 in pregnant women.
- Trial name
- DMAT (NCT02506439)
- Testing
- 10 mcg Vitamin D3, 20 mcg Vitamin D3
- Where
- 2 sites in Ireland
- Volunteers
- 144 people, healthy volunteers welcome
- Sponsor
- University College Cork
Colon Cancer, Rectal Cancer
Effectiveness of High Dose Vitamin D Supplementation in Stage III Colorectal Cancer
This is a pilot study to test whether there is an association between baseline Vitamin D levels, Vitamin D supplementation and survival in patients with stage III colon and stage II/III rectal cancer receiving chemotherapy.
- Trial name
- NCT02603757
- Testing
- cholecalciferol
- Where
- 3 sites in United States
- Volunteers
- 70 people
- Sponsor
- Legacy Health System