Clinical trials: Vitamin Deficiencies
Bacterial Pneumonia
Vitamin D Supplementation Prevents Elderly Pneumonia
Pneumonia is the fourth leading cause of death and frequently occurs in institutionalized elderly people in Japan. Recently, several clinical and experimental studies have reported the importance of vitamin D in the regulation of…
- Trial name
- NCT00877422
- Testing
- Vitamin D3
- Where
- Japan
- Volunteers
- 100 people
- Sponsor
- Tohoku University
Bariatric Surgery, Micronutrient Deficiencies
Supplementation After Bariatric Surgery
The aim of this study is to assess medication adherence to vitamin and mineral supplements after bariatric surgery and identify factors that may influence adherence.
- Conditions
- Bariatric Surgery, Micronutrient Deficiencies, Obesity
- Trial name
- NCT04412421
- Testing
- Gastric Bypass, Sleeve Gastrectomy
- Where
- Sweden
- Volunteers
- 260 people
- Sponsor
- Region Östergötland
X-linked Hypophosphatemia
Using Different Doses of Active Vitamin D Combined With Neutral Phosphate in Children With X-linked Hypophosphatemia
X-linked hypophosphatemia (XLH) is the most common form of heritable rickets. Current treatments include active vitamin D metabolites (e.g. calcitriol) and phosphate salts.
- Trial name
- NCT03820518
- Testing
- Calcitriol
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Peking Union Medical College Hospital
Major Depressive Disorder (MDD), Hypovitaminosis D
Effect of Vitamin D Supplementation on Brain Waves in Female Major Depressive Disorder Patients With Hypovitaminosis D
Major Depressive Disorder (MDD) is a common mood disorder characterized by persistent sadness, loss of interest and cognitive impairment.
- Trial name
- NCT07579078
- Testing
- Dietary vitamin D
- Where
- Bangladesh
- Volunteers
- 34 people
- Sponsor
- Bangladesh Medical University
Overweight and Obesity, Vitamin D Deficiency
Magnesium and Vitamin D Supplementation and Cardiometabolic Outcomes
The purpose of this study is to investigate the effects of a combined vitamin D and magnesium supplementation on parathyroid hormone and cardiometabolic health in persons living with obesity.
- Conditions
- Overweight and Obesity, Vitamin D Deficiency, Magnesium Deficiency, Cardiovascular Risk Factor
- Trial name
- NCT03134417
- Testing
- Vitamin D and magnesium, Vitamin D
- Where
- United States
- Volunteers
- 109 people, healthy volunteers welcome
- Sponsor
- Drexel University
Hypercholesterolemia, Cognitive Dysfunction
The Dual Impact of Homocysteine and Cholesterol on Cognitive Functions
The study evaluates if the relationship between total serum cholesterol is dependent on the total serum homocysteine. Fasting blood samples will taken from participants and two batteries of cognitive scales will be used to asses…
- Conditions
- Hypercholesterolemia, Cognitive Dysfunction, Hyperhomocysteinemia
- Trial name
- NCT03631238
- Testing
- Blood sampling for total cholesterol and homocysteine and cognitive assessment by psychometric tests.
- Where
- Egypt
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Assiut University
Vitamin D Deficiency, Malnutrition
Optimizing Treatment Programs for Chronic Kidney Disease-mineral and Bone Disorder and Malnutrition
Multi-center, prospective, randomized, controlled study to verify the clinical effectiveness of K / DOQI guidelines. The efficiency and safety of Vitamin D2 and low protein diet treatment for prevention and treatment of CKD-MBD…
- Trial name
- NCT02005302
- Testing
- 1,25(OH)2 Vitamin D3, Vitamin D2, low protein diet
- Where
- 5 sites in China
- Volunteers
- 600 people
- Sponsor
- Wenhu Liu
Congenital Heart Disease, Thiamine Deficiency
The Role of Thiamine After Transcatheter Closure in Children With Left-to-Right Shunt Congenital Heart Disease
Currently, research on the effect of thiamine administration during transcatheter closure on the structure and function of the left ventricle by examining levels of matrix metalloproteinase-9 and tissue inhibitor of…
- Conditions
- Congenital Heart Disease, Thiamine Deficiency, Patent Ductus Arteriosus, Ventricular Septal Defect
- Trial name
- NCT06298344
- Testing
- Thiamine
- Where
- Indonesia
- Volunteers
- 86 people
- Sponsor
- Universitas Sumatera Utara
Endothelial Dysfunction, Hyperhomocysteinemia
Effect of L-Arginine and Pycnogenol on Light to Moderate Hypertension and Endothelial Function
The effect of a combination product (Verum ) with L-arginine, Pycnogenol, vitamin K2, R-(+)-alpha-lipoic acid and vitamins B6, B12 and folic acid is investigated in a double blind placebo-controlled cross-over study.
- Conditions
- Endothelial Dysfunction, Hyperhomocysteinemia, Hypertension Grade I, Subgroup "Borderline" (WHO)
- Trial name
- NCT02392767
- Testing
- Verum
- Where
- Germany
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Dr. Loges & Co. GmbH
Vitamin A Deficiency
Efficacy of Newborn Vitamin A Supplementation in Improving Immune Function
Vitamin A supplementation at birth may increase survival of infants through one year of age by reducing mortality from infectious diseases, though current studies are not conclusive on this point.
- Trial name
- NCT01583972
- Testing
- retinyl palmitate
- Where
- Bangladesh
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research Center
Osteogenesis Imperfecta, Rare Bone Disorders
Morphology in Oral Rare Syndromes & Artificial Intelligence for Clinical Diagnosis
MOSAIC aims to determine whether oro-dental morphological anomalies, particularly palatal morphology, associated with rare bone and cartilage diseases can be precisely characterized using 3D digital models analysed through…
- Conditions
- Osteogenesis Imperfecta, Rare Bone Disorders, Hypophosphatemia, X-Linked
- Trial name
- MOSAIC (NCT07666269)
- Testing
- intra-oral 3D optical impression
- Where
- France
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University Hospital, Bordeaux
Vitamin B 12 Deficiency
Effect of Daily Consumption of Vitamin B12 Fortified Yoghurt on Vitamin B12 Status in Older Adults
Older adults are recommended to meet their daily vitamin B12 (B12) requirements by consuming foods with added B12 and/or taking B12 supplements (i.e.
- Trial name
- NCT05993962
- Testing
- Fortified yoghurt, Control yoghurt
- Where
- 2 sites in Canada
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Neural Tube Defects, Folic Acid Deficiency
Feasibility, Acceptability and Directional Signal Effect on Blood Folate Levels of Iodized Salt Fortified With Folic Acid: Clinical Study
Aim 1: Assess directional signal of effect of fortified salt with folic acid and iodine on blood serum folate levels. It will be accomplished by feasibility pre-test/post-test clinical study by estimating mean and variability of…
- Conditions
- Neural Tube Defects, Folic Acid Deficiency, Fortification
- Trial name
- FASALT (NCT05935631)
- Testing
- Salt with folic acid and iodine
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Environmental Enteric Dysfunction, Zinc Deficiency
Effects of EED on Zn Absorption and Retention in Children From a Standard Dose
The overall objective is to determine the impact of EED on zinc absorption and homeostasis, and its impact on the absorptive capacity of vitamin A absorption of young children (18-24 months of age) in an austere setting with high…
- Conditions
- Environmental Enteric Dysfunction, Zinc Deficiency, Vitamin A Deficiency
- Trial name
- ZEED1 (NCT02760095)
- Testing
- 3 mg zinc sulfate supplement, 0.5 mg of 13C10-retinyl-acetate
- Where
- 2 sites in United States, Bangladesh
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Vitamin D Deficiency
A Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency
A Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in adults with Vitamin D Deficiency
- Trial name
- NCT03233295
- Testing
- Vitamin D3 B.O.N. Injection
- Volunteers
- 108 people
- Sponsor
- Kwang Dong Pharmaceutical co., ltd.
Sjogren's Syndrome, Vitamin D Deficiency
Corneal Nerve Structure in Sjogren's
Patients who are suspected of or diagnosed with Sjogren's disease will be evaluated for ocular symptoms and corneal nerve morphology.
- Trial name
- NCT03203382
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- University of Pennsylvania
Vitamin D Deficiency, Sarcopenia
Effect of Vitamin D3 Supplementation on Muscle Mass in ICU Patient
A randomized double blind placebo control trial study will be conducted in critically ill patients with vitamin D deficiency. Investigator aimed to study the effect of oral vitamin D3 supplementation, compare to placebo, on…
- Conditions
- Vitamin D Deficiency, Sarcopenia, Critical Illness
- Trial name
- NCT02594579
- Testing
- Vitamin D3
- Where
- Thailand
- Volunteers
- 40 people
- Sponsor
- Mahidol University
Vision Loss Night, Vision Disorders
OPI-NXYDLD-303 Safety and Efficacy of Phentolamine Ophthalmic Solution in Keratorefractive Surgery Participants With Decreased Mesopic Visual Acuity
The goal of this clinical trial is to learn if Phentolamine Ophthalmic Solution works to treat adults that have had keratorefractive surgery and have decreased visual acuity under mesopic conditions.
- Trial name
- LYNX-3 (NCT07140783)
- Testing
- 0.75% Phentolamine Ophthalmic Solution
- Where
- 20 sites in United States
- Volunteers
- 580 people
- Sponsor
- Opus Genetics, Inc
Healthy, Obesity
Open Label Randomized Clinical Study to Promote a Healthy Lifestyle in Medical Students
The main medical and social purpose of the project "It's trendy to be healthy!" is the promotion of healthy lifestyles and healthy eating among student youth.
- Conditions
- Healthy, Obesity, Nutrition, Healthy, Vitamin D Deficiency
- Trial name
- NCT05073029
- Testing
- nutrition program and modification of physical activity, synbiotic (Fructooligosaccharides+Lactobacillus rhamnosus GG ATCC 53103, 4.0х109 colony forming units - CFU), vitamin D3
- Where
- 2 sites in Ukraine
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Bogomolets National Medical University
Vitamin D Deficiency
Vitamin d Levels and Coronary Catheterization
decreased vitamin d levels are associated with increased inflammatory markers,and renin angiotensin levels. decreased levels were also found to be connected to increased cardiovascular mortality.
- Trial name
- NCT00749541
- Where
- Israel
- Volunteers
- 100 people
- Sponsor
- Assaf-Harofeh Medical Center
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