Clinical trials: Vitamin Deficiencies
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
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 B12 Deficiency
Autoantibodies to Gastric Parietal Cells in Rheumatoid Arthritis Patients
A review of the literature reveals that very few studies have assessed the potential co-existence of vitamin B12 deficiency due to gastric parietal cell autoantibodies. While Segal et al.
- Trial name
- NCT01876329
- Where
- United States
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- Keesler Air Force Base Medical Center
Pulpitis - Irreversible, Vitamin D Deficiency
Effect of Vitamin D on Postoperative Pain in Symptomatic Irreversible Pulpitis
Vitamin D deficiency (VDD) is a prevalent global health concern that has been linked to altered pain perception through its effects on inflammatory pathways, nociceptor activity, and neurotrophic signaling.
- Trial name
- NCT07579637
- Testing
- Vitamin D3
- Where
- Egypt
- Volunteers
- 54 people
- Sponsor
- Future University in Egypt
Vitamin D Deficiency
Vitamin D Supplementation in Systemic Lupus Erythematosus
Systemic Lupus Erythematosus (SLE) is a systemic autoimmune disorder. It mainly involves the skin, the joints, the nervous system and the kidney and may be life threatening.
- Trial name
- VITALUP (NCT01413230)
- Testing
- cholecalciferol
- Where
- 3 sites in France
- Volunteers
- 20 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
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
Rickets
Specturi Device - Feasibility Study
On a daily basis many (prematurely born) newborn are subjected to different urine collecting techniques to study biochemical abnormalities.
- Trial name
- NCT03105557
- Testing
- Urinary collecting device
- Where
- Netherlands
- Volunteers
- 20 people
- Sponsor
- Capturin Distribution B.V.
Vitamin D Deficiency
Effects of Antarctic Environment on Vitamin D Status and Health Risk Biomarkers of Its Inhabitants
The purpose of this study is to evaluate vitamin D (VD) deficiency in the population of Chilean Antarctica and evaluate the efficacy and safety of VD supplementation to decrease VD deficiency and favorably influence biomarkers…
- Trial name
- AntarD (NCT02930434)
- Testing
- cholecalciferol
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Pontificia Universidad Catolica de Chile
Vitamin D Deficiency, Covid19
The Relationship Between Vitamin D Levels, Inflammatory Parameters and Disease Severity of COVID-19 Infection
Vitamin D deficiency increases the susceptibility to respiratory virus infections and the severity of infections. Inflammation plays a key role in pathogenesis in COVID19 while identifying clinical course and prognosis…
- Trial name
- NCT04945577
- Testing
- Inflammatory Parameters, 25 OH Vitamin D Level
- Where
- Turkey (Türkiye)
- Volunteers
- 300 people
- Sponsor
- Fatih Sultan Mehmet Training and Research Hospital
Vitamin D Deficiency, HIV
Vitamin D in HIV-Infected Patients on HAART
This is a research study to look at vitamin D deficiency (low levels) in men and women with HIV. As part of your regular medical care, you will be screened for vitamin D deficiency.
- Trial name
- NCT01250899
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 122 people
- Sponsor
- University of California, Los Angeles
Kidney Diseases, Dialysis; Complications
PRevEnting FracturEs in REnal Disease - 1
PREFERRED-1 is a pilot study designed to determine the feasibility of a large randomized, pragmatic, open-label, comparative-effectiveness trial of denosumab for the prevention of fragility fractures in people receiving…
- Conditions
- Kidney Diseases, Dialysis; Complications, Fragility Fracture, Chronic Kidney Disease-Mineral and Bone Disorder
- Trial name
- PREFERRED-1 (NCT05096195)
- Testing
- Denosumab 60 mg/ml, Calcium and vitamin D prophylaxis, Monitoring of post-injection calcium and phosphate
- Where
- 6 sites in Canada
- Volunteers
- 60 people
- Sponsor
- Western University, Canada
Amyotrophic Lateral Sclerosis
The Efficacy and Safety of Vitamin E Mixed Tocotrienols In Patients With Amyotrophic Lateral Sclerosis (ALS)
There is currently no effective treatment in ALS. Oxidative stress, probably interacting with other neurodegenerative processes, is hypothesized to play a leading role in pathogenesis.
- Trial name
- NCT04140136
- Testing
- Tocotrienols
- Where
- Malaysia
- Volunteers
- 20 people
- Sponsor
- University of Malaya
COVID-19, Vitamin D Deficiency
Investigating the Role of Vitamin D in the Morbidity of COVID-19 Patients
The 2019 novel coronavirus disease (COVID-2019) pandemic is an enormous health issue of worldwide scale. Prevention and/or treatment with a widely-available and already-licensed product such as vitamin D (cholecalciferol) could…
- Trial name
- NCT04386044
- Where
- United Kingdom
- Volunteers
- 986 people
- Sponsor
- Tameside General Hospital
X-linked Hypophosphatemia (XLH)
Treatment Patterns, Biochemical Profiles and Clinical Outcomes in Adults With X-Linked Hypophosphatemia
The purpose of this study is to better understand how X-linked hypophosphatemia (XLH) affects the body and daily life. Phosphate levels are critical in managing XLH, we aim to study how these levels change in patients taking…
- Trial name
- IBIS XLH (NCT07607600)
- Testing
- No treatment given
- Where
- 23 sites in United States, Australia and 6 more
- Sponsor
- Novo Nordisk A/S
Anemia, Nutritional Deficiency
Anemia in Older Adults
A cross-sectional study with 829 older Mexican adults were recruited from July to September 2015, from four localities in the southern region of México.
- Conditions
- Anemia, Nutritional Deficiency, Inflammation
- Trial name
- NCT04820465
- Testing
- Non available due to cross-sectional study design
- Volunteers
- 829 people, healthy volunteers welcome
- Sponsor
- Instituto Nacional de Salud Publica, Mexico
Endstage Renal Disease
The Effect of Increasing Dialysate Magnesium on Calcification Propensity in Subjects on Haemodialysis
The purpose of this trial is to examine the effect of increasing dialyse magnesium on serum calcification propensity in subjects with end-stage renal disease treated with haemodialysis.
- Trial name
- NCT02977117
- Testing
- Dialysate magnesium (1.0 mmol/L), Dialysate magnesium (0.5 mmol/L)
- Where
- Denmark
- Volunteers
- 59 people
- Sponsor
- Iain Bressendorff
Carpal Tunnel Syndrome, Vitamin D Deficiency
Comparıson Of Electromyography Results Before And After Vıtamın D Treatment In Patıents Wıth Carpal Tunnel Syndrome
Therefore, we aimed to evaluate the effectiveness of vitamin D replacement therapy on pain, electrophysiological parameters, ultrasonographic measurement results and functional status scales in CTS patients with low serum vitamin…
- Trial name
- NCT06282640
- Testing
- Vitamin D
- Where
- Turkey (Türkiye)
- Volunteers
- 87 people
- Sponsor
- Dr. Ayşe Güç
Vitamin D Deficiency, Osteoporosis
Study to Document the Phenomenon of Vitamin D Deficiency and Its Added Value in Patients with Low-energy Osteoporotic Hip Fracture, in Daily Practice in Greece.
Vitamin D, through its action on calcium metabolism, is essential for bone physiology. Vitamin D deficiency can affect muscle function and increase the risk of falls in the elderly, while severe deficiency is common in patients…
- Conditions
- Vitamin D Deficiency, Osteoporosis, Bone Loss, Age-Related, Fracture of Hip
- Trial name
- NCT06643650
- Testing
- CHOLECALCIFEROL ORAL.SOL 25000 IU/2,5ML
- Where
- Greece
- Volunteers
- 30 people
- Sponsor
- National and Kapodistrian University of Athens
Vitamin D Deficiency, Chemotherapy Effect
Vitamin D Can Increase Pathological Response of the Breast Cancer Patients Treated With Neoadjuvant Therapy
The aim of the study is to evaluate the relationship between the vitamin D replacement and pathological response in patients undergoing neoadjuvant therapy according to different molecular sub types.
- Conditions
- Vitamin D Deficiency, Chemotherapy Effect, Pathology
- Trial name
- NCT03986268
- Testing
- Vit D
- Where
- Turkey (Türkiye)
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Florence Nightingale Hospital, Istanbul
Vitamin D Deficiency
Isolation of Vitamin D Binding Protein Isoforms From Human Volunteers
The purpose of this study is to isolate genotype-specific DBP/Gc from homozygous human volunteers and use these purified proteins to cross-validate existing or novel assays for this serum protein and to evaluate the binding…
- Trial name
- NCT02258035
- Testing
- Blood draw
- Where
- Belgium
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven