Clinical trials: Vitamin D Deficiency, completed
Iron-deficiency
Effect of Vitamin D3-fortified Fruit Juice on Iron Status in Women
The present study is designed to utilise vitamin D3 supplements that may potentially act as an iron absorption enhancer to improve iron status in the Malaysian child-bearing aged women with low iron stores.
- Trial name
- NCT04618289
- Testing
- Vitamin D3-fortified fruit juice supplement
- Where
- Malaysia
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Universiti Putra Malaysia
Chronic Kidney Diseases
SOP's for CKD-MBD-Biomarkers
CKD-MBD (Chronic Kidney Disease - Mineral and Bone Disorder) is an extensive disease and includes dysfunction of the mineral metabolism, the bone metabolism and cardiovascular diseases in the context of renal insufficiency.
- Trial name
- NCT02708368
- Testing
- blood withdrawal
- Where
- 2 sites in Germany
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- RWTH Aachen University
Vitamin D Deficiency
Evaluation of Vitamin D Requirements During Pregnancy
The purpose of this study is to determine the effectiveness of vitamin D supplementation during pregnancy starting at the beginning of the second trimester.
- Trial name
- NCT00292591
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 501 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Vitamin D3, Chronic-granulomatous Disease
Vitamin D3 For CGD Patients With BCGosis/Itis
When children with chronic granulomatous disease (CGD) got BCG infection the treatment would be a tough task. The goal of the proposed research is to observe weather vitamin D supplementation can help the CGD children get through…
- Conditions
- Vitamin D3, Chronic-granulomatous Disease, BCG
- Trial name
- NCT03984890
- Testing
- Vitamin D3, Traditional treatment of CGD and TB
- Where
- 2 sites in China
- Volunteers
- 50 people
- Sponsor
- Children's Hospital of Fudan University
Vitamin D Deficiency
Safety of Vitamin D Supplementation in Older Persons
This study will evaluate the safety over 6 months of two different doses of vitamin D (cholecalciferol) in men and women age 65 and older. It will also evaluate if supplementation with vitamin D improves physical performance.
- Trial name
- NCT00681590
- Testing
- cholecalciferol (vitamin D)
- Where
- United States
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- University of Miami
Chronic Lymphocytic Leukemia, Non-Hodgkin Lymphoma
Cholecalciferol in Newly Diagnosed Non-Hodgkin Lymphoma or Chronic Lymphocytic Leukemia With Vitamin D Deficiency
This randomized pilot early phase I trial studies how well cholecalciferol works in treating patients with newly diagnosed non-Hodgkin lymphoma or chronic lymphocytic leukemia with low levels of vitamin D (vitamin D deficiency).
- Conditions
- Chronic Lymphocytic Leukemia, Non-Hodgkin Lymphoma, Untreated Chronic Lymphocytic Leukemia, Vitamin D Deficiency
- Trial name
- NCT02553447
- Testing
- Cholecalciferol, Laboratory Biomarker Analysis
- Where
- United States
- Volunteers
- 197 people
- Sponsor
- University of Nebraska
Vitamin D Deficiency
Effect of Vitamin D on Everolimus Trough Concentrations Among Heart Transplanted Patients
Vitamin D is part of the regular treatment regimen among patients after heart transplantation. Due to potential drug-drug interaction between vitamin D and everolmus, these patients are in increased risk for increased everolimus…
- Trial name
- NCT03403647
- Testing
- Vitamin D
- Where
- Israel
- Volunteers
- 11 people
- Sponsor
- Sheba Medical Center
Primary Immune Deficiency Disorder
Study of Vitamin D3 Substitution to Patients With Primary Immunodeficiency
Hypothesis: Cholecalciferol (vitamin D3) prevent respiratory tract infections in patients with primary immunodeficiency.
- Trial name
- VITAPID (NCT01131858)
- Testing
- Vigantol
- Where
- Sweden
- Volunteers
- 140 people
- Sponsor
- Karolinska University Hospital
Obesity, Vitamin D Deficiency
Impact of Maternal Body Weight on Vitamin D Status During Pregnancy
Research shows high levels of vitamin D deficiency in pregnant women in Northern Ireland. Body composition is a determinant of vitamin D status.
- Trial name
- MO-VITD (NCT02713009)
- Testing
- Pregnancy multi-vitamin (including 10μg vitamin D3), 10μg vitamin D3
- Where
- United Kingdom
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Vitamin D Deficiency Disease
Vitamin D Supplementation in Warfighters
A genomics-based approach will target specific genes that may explain the response in biomarkers and symptoms before and after supplementation.
- Trial name
- NCT02954549
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 131 people, healthy volunteers welcome
- Sponsor
- Madigan Army Medical Center
Vitamin D Deficiency, Carotid Artery Diseases
Vitamin D Deficiency as Independent Predictor for Plaque Vulnerability
Role of vitamin D in cardiovascular disease is controversial. Here the investigators aimed to investigate the association of vitamin D deficiency and carotid plaque morphology as well as outcome of participants with high-grade…
- Trial name
- NCT06473337
- Testing
- Blood sample
- Where
- Austria
- Volunteers
- 332 people
- Sponsor
- Medical University of Vienna
X-linked Hypophosphatemia
Open Label Study of KRN23 on Osteomalacia in Adults With X-linked Hypophosphatemia (XLH)
The primary objective of this study is to establish the effect of KRN23 treatment on improvement in XLH-associated osteomalacia as determined by osteoid volume (osteoid volume/bone volume, OV/BV).
- Trial name
- NCT02537431
- Testing
- burosumab
- Where
- 14 sites in United States, Canada and 4 more
- Volunteers
- 14 people
- Sponsor
- Kyowa Kirin, Inc.
Major Depression, Vitamin D Deficiency
Effects of Vitamin D Supplementation on Depression and Inflammatory Markers
The current study is designed as a prospective partially randomized patient preference (PRPP) trial and recruit psychiatric outpatients or inpatients.
- Trial name
- NCT04898725
- Testing
- Vitamin D3
- Where
- Taiwan
- Volunteers
- 142 people
- Sponsor
- Mackay Memorial Hospital
Renal Osteodystrophy
12-month Study of AMG 073 in Renal Osteodystrophy
4 doses of AMG 073 or placebo over 52 weeks after a 30-day screening period. Throughout the study, labs will be drawn to measure analytes such as iPTH and corrected calcium.
- Trial name
- NCT00527085
- Testing
- AMG 073
- Volunteers
- 45 people
- Sponsor
- Amgen
Hypercholesterolemia, Vitamin D Deficiency
Effects of Vitamin D on Lipids
The purpose of this study is to examine whether oral vitamin D supplementation in people with inadequate vitamin D concentrations will lower LDL-cholesterol and total cholesterol concentrations.
- Trial name
- NCT00723385
- Testing
- Vitamin D (1000 or 2000 IU/day)
- Where
- United States
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Vitamin D Deficiency, Burns
Vitamin D Deficiency in Adults Following a Major Burn Injury
This is a single site double blind randomized controlled trial of replacing Vitamin D for Vitamin D-deficient burn patients at a current recommended dose (400 IU daily) versus a higher dose (4000 IU daily).
- Trial name
- NCT05084248
- Testing
- Ergocalciferol Capsules
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- University of Texas Southwestern Medical Center
Vitamin D Deficiency
Sunlight Exposures Effect on Serum Vitamin D Levels
When people eat a meal, some, but not all of the calcium in that meal is absorbed, that is, moved into the bloodstream. When the skin is exposed to sunlight during summer months, Vitamin D is made there and then modified into…
- Trial name
- NCT00473317
- Testing
- Sun Exposure
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Creighton University
Secondary Hyperparathyroidism, Renal Osteodystrophy
Regulation of Bone Formation in Renal Osteodystrophy
To examine the effects of two types of active vitamin D (calcitriol and doxercalciferol) and two phosphate binders (sevelamer and calcium carbonate) on the bone disease and blood tests of children with kidney failure
- Trial name
- NCT00560300
- Testing
- 1 alpha D2, 1,25 dihydroxy vitamin D3, Sevelamer HCl
- Volunteers
- 61 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Morbid Obesity, Vitamin D Deficiency
Effect of a Monthly High Dose of Vitamin D3 on Bariatric Surgery Patients
Bariatric surgery patients tend to have malabsorption of many micronutrients such as B12, Iron and vitamin D postoperative. So in this study, a monthly high dose of vitamin D3 is giving to patients with their routine supplements…
- Trial name
- NCT02477956
- Testing
- vitamin D3 (Replesta), vitamin D
- Where
- United States
- Volunteers
- 31 people
- Sponsor
- Texas Tech University
Asthma, Bronchial
Efficacy of Calcifediol Supplementation in Asthma Control in Asthmatic Patients With Vitamin D Deficiency (ACViD)
Introduction: There are many cross-sectional studies in children and adults indicating that low vitamin D levels in asthmatic patients are correlated with poorer asthma control, poorer lung function, decreased response to…
- Trial name
- ACViD (NCT02805907)
- Testing
- Calcifediol
- Where
- Spain
- Volunteers
- 112 people
- Sponsor
- MurciaSalud