Clinical trials: Deficiency, Vitamin D
Vitamin D Deficiency
Absorption Kinetics and Efficacy of Vitamin D Enriched Supplements in Older Adults.
The proposed study will examine vitamin D bioavailability when 20µg of vitamin D is consumed in 5 different forms: i) a vitamin D enriched pre-formed mixed micelle dairy drink ii) a vitamin D enriched olive oil dairy drink iii) a…
- Trial name
- NCT04935034
- Testing
- Vitamin D supplement
- Where
- Ireland
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University College Dublin
CKD, Renal Insufficiency Chronic
The CPH-MBD Cohort Dietary Substudy - Comparison of Methods for Dietary Registrations
The aim of the study is to assess the association between the calcium and phosphorus balance and the stage of kidney disease measured by creatinine clearence in patients with chronic kidney disease stage 4 and 5.
- Conditions
- CKD, Renal Insufficiency Chronic, CKD-MBD - Chronic Kidney Disease Mineral and Bone Disorder, Pre-dialysis
- Trial name
- NCT07312981
- Where
- 2 sites in Denmark
- Volunteers
- 50 people
- Sponsor
- University of Copenhagen
Depression, Postpartum Depression
Is Vitamin D Insufficiency and Deficiency Associated With Antepartum and Postpartum Depression?
Our primary aim is to evaluate whether Vitamin D deficiency causes depressive symptoms in antepartum and postpartum depression and whether early correction of Vitamin D deficiency improves these symptoms.
- Trial name
- NCT02272387
- Testing
- Vitamin D3 (Cholecalciferol)
- Where
- United States
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- St. Luke's-Roosevelt Hospital Center
Vitamin D Deficiency, Iodine Deficiency
Vitamin D, Iodine, and Lead Levels in Haitian Infants and Children.
Vitamin D deficiency is common worldwide, including in infants and children, and rickets remains a public health concern in many developing countries.
- Conditions
- Vitamin D Deficiency, Iodine Deficiency, Hypothyroidism, Rickets
- Trial name
- Haiti (NCT02301520)
- Where
- 2 sites in Haiti
- Volunteers
- 299 people, healthy volunteers welcome
- Sponsor
- Boston Children's Hospital
Leiomyoma, Vitamin D Deficiency
Vitamin D Deficit in Women With Uterine Fibroids
Determinate the level of vitamin D in blood, and evaluate the prevalence of deficit and insufficiency among patients with diagnosis of uterine fibroids
- Conditions
- Leiomyoma, Vitamin D Deficiency, Fibroid Uterus
- Trial name
- NCT04030182
- Testing
- Level of Vitamin D
- Where
- 2 sites in Mexico
- Volunteers
- 127 people, healthy volunteers welcome
- Sponsor
- Instituto Mexicano del Seguro Social
Systemic Lupus Erythematosus
Vitamin D3 Treatment in Pediatric Systemic Lupus Erythematosus
The primary objective of this study is to evaluate the effects of 18 weeks of high-dose vitamin D3 supplementation compared with standard-dose vitamin D3 supplementation on immune function, glucose homeostasis, and bone…
- Trial name
- NCT01709474
- Testing
- Vitamin D3 6000 IU, Vitamin D3 400 IU
- Where
- 13 sites in United States
- Volunteers
- 7 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Vitamin D Deficiency
Effect of an Inhibitor of Cholesterol Absorption on Vitamin D Levels
Double-blind randomized controlled trial to evaluate the serum levels of 25(OH)D after a single oral dose of cholecalciferol 50,000 IU plus ezetimibe or placebo.
- Trial name
- NCT02234544
- Testing
- Ezetimibe, Cholecalciferol
- Where
- Brazil
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Federal University of Rio Grande do Sul
Homocystinaemia, Vitamin D Deficiency
Vitamin D3 Treatment and Homocysteine Concentrations Among Overweight Reproductive Women
100 overweight reproductive vitamin D deficient women were divided into two groups; vitamin D (n = 50) and placebo (n = 50). Vitamin D group received treatment dose of 50,000 IU of vitamin D3 per week for 2 consecutive months and…
- Trial name
- NCT03310307
- Testing
- Vit D
- Where
- Jordan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Al-Balqa Applied University
Alkaline Phosphatase Deficiency, Vitamin D Deficiency
Serum Alkaline Phosphatase Levels In Healthy Turkish Children
Alkaline phosphatase (ALP), is a metalloenzyme of the plasma membrane. Serum ALP levels in children are closely related to age and gender, many commercial test kits being used in hospitals, are only offering reference values for…
- Trial name
- NCT06689709
- Testing
- Serum Alkaline Phosphatase Levels
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Emine Hafize
Vitamin D Deficiency, Rickets
Vitamin D Supplementation in Breastfeeding Women
Adequate vitamin D is essential for proper infant growth and development. However, human milk is low in vitamin D, and most infants do not receive recommended supplementation.
- Conditions
- Vitamin D Deficiency, Rickets, Infant Nutrition Disorders
- Trial name
- NCT01240265
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Preterm Birth, Preterm Labor
Correlation Between Maternal Vitamin D Level And Preterm Birth
Assessment of correlation between vitamin D level and prevalence of preterm births remains limited. The exact role of vitamin D in preterm birth has not yet been clearly defined ,where some studies showed vitamin D deficiency…
- Conditions
- Preterm Birth, Preterm Labor, Vitamin D Deficiency
- Trial name
- NCT03638037
- Testing
- Vitamin D measurement
- Where
- Egypt
- Volunteers
- 138 people
- Sponsor
- Ain Shams Maternity Hospital
Vitamin D Deficiency
Prevalence and Consequences of Vitamin D Deficiency in Pregnant Women in Switzerland
The purpose of this study is to determine the prevalence of vitamin D deficiency among the population of pregnant women receiving prenatal care and giving birth at the investigators' clinic.
- Trial name
- PCVDDPWS (NCT02904720)
- Where
- Switzerland
- Volunteers
- 1,199 people, healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Frail Elderly, Vitamin d Deficiency
Vitamin D in Vulnerable Adults (VIVA-VA)
Vitamin D insufficiency is a problem of growing concern, given its prevalence in older persons and the association of low vitamin D with multiple major health problems, including mobility and balance deterioration and falls…
- Trial name
- VIVA-VA (NCT01170273)
- Testing
- vitamin D
- Where
- United States
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Osteoporosis, Vitamin D Deficiency
A Study of MK0217A and Dietary Supplement in Men and Postmenopausal Women With Osteoporosis (0217A-227)
The purpose of this study is to test the safety, tolerability, and effectiveness of an investigational drug and dietary supplement to reduce the risk of vitamin D insufficiency and deficiency during treatment of osteoporosis in…
- Trial name
- NCT00092079
- Testing
- MK0217A, alendronate sodium (+) cholecalciferol / Duration of Treatment: 24 weeks
- Volunteers
- 652 people
- Sponsor
- Merck Sharp & Dohme LLC
Heart Failure, Vitamin D Deficiency
Vitamin D3 Supplementation for Heart Failure Patients
The purpose of this study is to determine if treatment with vitamin D3 of 10,000 International Units (IU) daily in vitamin D deficient patients for 6 months will improve B type natriuretic peptide (BNP), a marker of heart…
- Conditions
- Heart Failure, Vitamin D Deficiency, Cardiomyopathy, Congestive Heart Failure
- Trial name
- NCT01636570
- Testing
- Vitamin D3 (cholecalciferol)
- Where
- 2 sites in United States
- Volunteers
- 40 people
- Sponsor
- Heidi Moretti, MS, RD
Vitamin D Deficiency
Vitamin D and HIV-Cardiovascular Disease in Children and Young Adults
The relationship of Vitamin D levels in children and young adults to atherosclerosis.
- Trial name
- NCT01410305
- Where
- 2 sites in United States
- Volunteers
- 290 people, healthy volunteers welcome
- Sponsor
- University Hospitals Cleveland Medical Center
Type 2 Diabetes, Nonalcoholic Fatty Liver Disease
Hepatic Dysfunction, Vitamin D Status, and Glycemic Control in Diabetes
This study is designed to study the effect of vitamin D intake on the severity of fatty liver and poor glucose control in patients with type 2 diabetes and fatty liver disease.
- Conditions
- Type 2 Diabetes, Nonalcoholic Fatty Liver Disease, Vitamin D Deficiency
- Trial name
- VDLS (NCT02132442)
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- University of Massachusetts, Worcester
Obesity
Vitamin D Supplementation in Vitamin D Deficient Obese Children During Weight-loss Program
1. Analyze the influence of vitamin D supplementation in obese children during weight-loss program on BMI, body composition and bone mineral density. 2.
- Trial name
- NCT02828228
- Testing
- Vitamin D 1200 IU
- Where
- Poland
- Volunteers
- 200 people
- Sponsor
- University Clinical Centre, Gdansk
Vitamin D Deficiency
Availability of Vitamin D in Orange Juice
The purpose of this study was to determine whether vitamin D2 and vitamin D3 in orange juice are effective at raising vitamin D levels in the blood and if vitamin D2 and vitamin D3 in orange juice raised blood levels of 25(OH)D…
- Trial name
- NCT01778114
- Testing
- Vitamin D2 in orange juice, Vitamin D3 in orange juice, Vitamin D2
- Where
- United States
- Volunteers
- 86 people, healthy volunteers welcome
- Sponsor
- Boston University
Implant Site Reaction
Perioperative Oral Vitamin D3 Supplementation on Implant Osseointegration
The number of patients treated in Implantology at Nantes University Hospital is 400 per year. This pilot study aims to demonstrate the efficacy of a 6-month oral cholecalciferol supplementation on osseointegration in patients…
- Trial name
- OSIVID (NCT06776640)
- Where
- France
- Volunteers
- 60 people
- Sponsor
- Nantes University Hospital
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