Clinical trials: Hypovitaminosis
Covid19, Corona Virus Infection
Clinical Outcomes of High Dose Vitamin D Versus Standard Dose in COVID-19 Egyptian Patients
Vitamin D is a secosteroid hormone which may have beneficial role in reducing COVID-19 adverse outcomes by first regulating the renin angiotensin system (RAS).
- Conditions
- Covid19, Corona Virus Infection, Cytokine Storm, Vitamin D Deficiency
- Trial name
- NCT04738760
- Where
- Egypt
- Volunteers
- 116 people
- Sponsor
- Ain Shams University
Diabetes Mellitus, Vitamin D Deficiency
Does Vitamin D Improve Glycemic Control in Type II DM?
Vitamin D status has been negatively associated with the presence of type II DM and glycemic control. However, a cause-effect relationship between vitamin D deficiency and glycemic control has not been established.
- Trial name
- NCT01170442
- Testing
- vitamin D3 2000 IU, vitamin D3 5000 IU
- Where
- Saudi Arabia
- Volunteers
- 25 people
- Sponsor
- King Faisal Specialist Hospital & Research Center
Vitamin D Deficiency
Vitamin D and Functional Outcomes After Total Hip Arthroplasty (THA)
The investigators would like to evaluate the effect of serum 25-hydroxy vitamin D level on post-operative short-term functional outcomes after total hip arthroplasty (THA).
- Trial name
- NCT01397383
- Where
- United States
- Volunteers
- 219 people, healthy volunteers welcome
- Sponsor
- Hospital for Special Surgery, New York
Vitamin D Deficiency, 25-Hydroxyvitamin D3 Deficiency, Selective
Vitamin D3-enhanced Eggs in Preschool Children
This is double-blind, controlled fiel trial, to compare fortified egg with D3-or 25(OH)D3 and non-fortified eggs in healthy preschool-age children 12 to 60 months of age, affiliated to day-care centers at Secretaria de Desarrollo…
- Trial name
- VD3-egg (NCT06096194)
- Testing
- vitamin D-enhanced egg, Control
- Where
- Mexico
- Volunteers
- 275 people
- Sponsor
- Instituto Nacional de Salud Publica, Mexico
Chronic Kidney Disease, Vitamin D Deficiency
Vitamin D, Chronic Kidney Disease (CKD) and the Microcirculation
Overall research aims: This study will examine the effect of vitamin D supplementation on the function of the endothelium and microcirculation of patients with chronic kidney disease and vitamin D deficiency.
- Trial name
- NCT00882401
- Testing
- Ergocalciferol (Vitamin D)
- Where
- United Kingdom
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Barts & The London NHS Trust
Undernutrition
Nutributter Programming to Prevent Undernutrition: an Evaluation
This randomized, controlled effectiveness study examines Nutributter programming within an integrated package of maternal and child health services offered by Haiti's Ministry of Health (MSPP) to prevent undernutrition among…
- Trial name
- NPPU (NCT01552512)
- Testing
- Nutributter Program, Integrated Package
- Where
- Haiti
- Volunteers
- 1,228 people
- Sponsor
- Washington University School of Medicine
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
Vitamin D Deficiency, Chronic Heart Failure
The Role of Vitamin D in the Pathophysiology of Chronic Failure
Patients will undergo at baseline and regular intervals: clinically indicated bloodwork/urine and echocardiogram testing biomarker studies Upon enrolment in the study patients will be divided into 4 groups normal, mildly…
- Trial name
- NCT01993537
- Testing
- Vitamin D
- Where
- Canada
- Volunteers
- 91 people
- Sponsor
- Ottawa Heart Institute Research Corporation
Hypophosphatasia
Safety and Efficacy Study of ENB-0040 in Juvenile Patients With Hypophosphatasia (HPP)
This Clinical Trial is being conducted to study Hypophosphatasia (HPP), a bone disorder caused by gene mutations or changes. These gene mutations cause low levels of an enzyme needed to harden bone.
- Trial name
- NCT00894075
- Testing
- ENB-0040
- Sponsor
- Alexion Pharmaceuticals, Inc.
Iron Deficiency, Iron Deficiency Anemia (IDA)
Collegiate Athlete Study
The purpose of this study is to determine what percentage of Black collegiate athletes have low energy availability. It will also determine the percentage of Black collegiate athletes who have iron deficiency, suboptimal or low…
- Conditions
- Iron Deficiency, Iron Deficiency Anemia (IDA), Vitamin D Deficiency, Vitamin D Insufficiency
- Trial name
- NCT07631312
- Testing
- Iron and Vitamin D Deficiencies Correction
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Morehouse School of Medicine
Development, Vitamin Deficiency
Vitamin B12, Neurodevelopment and Growth in Nepal
Rationale: Globally, vitamin B12 deficiency is one of the most common micronutrient deficiencies. The only relevant source of Vitamin B12 is animal-source foods.
- Conditions
- Development, Vitamin Deficiency, Malnutrition
- Trial name
- BeLive (NCT02272842)
- Testing
- Vitamin B12
- Where
- Nepal
- Volunteers
- 600 people
- Sponsor
- Centre For International Health
Breast Cancer, Vitamin D Deficiency
Epidemiological Analysis of Vitamin D and Breast Cancer Risk in Saudi Arabian Women
This is an analysis of de-identified data collected from 240 Saudi Arabian women, 120 with breast cancer and 120 control women, to evalyate if vitamin D status is associated with breast cancer risk.
- Trial name
- NCT01817231
- Where
- United States
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University of Arizona
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
Secondary Hyperparathyroidism Due to Renal Causes, Chronic Kidney Diseases
Safety, Efficacy, PK and PD of CTAP101 (Calcifediol) ER Capsules for SHPT in HD Patients VDI
Safety, Efficacy, PK and PD of CTAP101 (calcifediol) ER Capsules for SHPT in HD Patients VDI
- Conditions
- Secondary Hyperparathyroidism Due to Renal Causes, Chronic Kidney Diseases, Vitamin D Deficiency, Stage 5 Chronic Kidney Disease
- Trial name
- NCT03602261
- Testing
- Calcifediol Oral Capsule
- Where
- 18 sites in United States
- Volunteers
- 44 people
- Sponsor
- OPKO Health, Inc.
Hypocalcemia, Pseudohypoparathyroidism
Studies of States With Resistance to Vitamin D and Parathyroid Hormone
Patients with confirmed or suspected states with resistance to vitamin D or parathyroid hormone (PTH) will be admitted for diagnosis, treatment review with suggestions for modifications to the current or new treatment and for…
- Conditions
- Hypocalcemia, Pseudohypoparathyroidism, Osteomalacia, Rickets
- Trial name
- NCT00001242
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Postmenopausal Osteoporosis, Postmenopause
Frequency of Hyperparathyroidism in Postmenopausal Osteoporosis and Its Treatment
Recently, an increase in the prevalence of hyperparathyroidism and hypovitaminosis D in postmenopause women has been occurring in Mexico and the world.
- Conditions
- Postmenopausal Osteoporosis, Postmenopause, Hyperparathyroidism, Secondary, Hypovitaminosis D
- Trial name
- NCT05347082
- Testing
- Cholecalciferol
- Where
- Mexico
- Volunteers
- 47 people
- Sponsor
- Hospital Regional 1o de Octubre
Chronic Kidney Disease
Ergocalciferol in Chronic Kidney Disease
To examine the effect of ergocalciferol treatment on 25-hydroxyvitamin D and PTH levels in patients with CKD stage 3 and 4
- Trial name
- NCT00411294
- Where
- United States
- Sponsor
- Saint Louis VA Medical Center
Type 2 Diabetes Mellitus, Obesity
Vitamin D Status and Lipid Profile in Obese Adults With Type 2 Diabetes
This prospective, single-center, cross-sectional observational study aims to evaluate the association between serum 25-hydroxyvitamin D concentrations and lipid profile parameters among adults with obesity and established type 2…
- Conditions
- Type 2 Diabetes Mellitus, Obesity, Dyslipidemia, Vitamin D Deficiency
- Trial name
- VILD-T2D (NCT07729553)
- Volunteers
- 150 people
- Sponsor
- Sinai University
Post-COVID-19 Syndrome, Long COVID
Magnesium and Vitamin D Combination for Post-COVID Syndrome
The goal of this double-blind randomized controlled clinical trial is to determine the efficacy of the administration of magnesium chloride + vitamin D as an adjuvant in the treatment of post-Coronavirus Disease (COVID) syndrome.
- Conditions
- Post-COVID-19 Syndrome, Long COVID, Vitamin D Deficiency, Magnesium Deficiency
- Trial name
- NCT05630339
- Testing
- Magnesium chloride, Vitamin D
- Where
- Mexico
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Coordinación de Investigación en Salud, Mexico
Hypophosphatemia, Familial, Hyperparathyroidism
Effectiveness of Paricalcitol in Reducing Parathyroid Hormone (PTH) Levels in X-linked Hypophosphatemic Rickets
The purpose of this study is to determine the effectiveness of paricalcitol, a form of synthetic vitamin D, in lowering parathyroid hormone (PTH) levels and reducing disease symptoms in children and adults with X-linked…
- Trial name
- NCT00417612
- Testing
- Paricalcitol
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- Yale University
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