Clinical trials: Vitamin Deficiencies
Diabetes Complications, Vitamin D Deficiency
Myocardial Function and Vitamin D Supplementation in Diabetes.
Vitamin D deficiency is recognized as a cardiovascular risk factor. Diabetic patients are of major risk for cardiovascular diseases and typically present with Vitamin D deficiencies.
- Conditions
- Diabetes Complications, Vitamin D Deficiency, Vitamin D Supplementation, Myocardial Dysfunction
- Trial name
- VitaDD (NCT03437421)
- Testing
- Vitamin D3 (cholecalciferol)
- Where
- France
- Volunteers
- 100 people
- Sponsor
- University of Avignon
Migraine Headache, Arterial Stiffness
Vitamin K2 Supplementation in Adult Episodic Migraine
Migraine is a debilitating illness and a major cause of disability in the world. It is highly prevalent, especially among women.
- Conditions
- Migraine Headache, Arterial Stiffness, Vitamin K Deficiency
- Trial name
- ViKEM (NCT05943457)
- Testing
- Vitamin K2 or menaquinone-7
- Where
- Lebanon
- Volunteers
- 160 people
- Sponsor
- Sola Aoun Bahous, M.D. Ph.D.
Cystic Fibrosis, Vitamin D Deficiency
Cholecalciferol for Vitamin D in Adult Cystic Fibrosis (CF) Patients
The main aim of the research question to test the primary hypothesis of this study, namely, Does 12 weeks of an additional 5000 IU daily of cholecalciferol increase serum 25OHD levels in adults with Cystic Fibrosis (CF) who have…
- Trial name
- NCT00685971
- Testing
- 5000 IU of cholecalciferol
- Where
- Canada
- Volunteers
- 200 people
- Sponsor
- Unity Health Toronto
Epilepsy, Magnesium Deficiency
Magnesium as a Mediator of Bone and Vitamin D Metabolism in Patients on Antiepileptic Drug Therapy
The objective of this study is to determine the role of magnesium on bone and vitamin D metabolism in patients receiving anti-epileptic medications.
- Conditions
- Epilepsy, Magnesium Deficiency, Vitamin D Deficiency
- Trial name
- NCT03471481
- Testing
- No Intervention. Study is Cross Sectional in nature
- Where
- 2 sites in United States
- Volunteers
- 7 people
- Sponsor
- Drexel University
Vitamin A Deficiency, Idiopathic Scoliosis
Effect of Vitamin A Supplementation on Idiopathic Scoliosis
This study aims to investigate whether vitamin A supplementation can influence spinal curve magnitude in idiopathic scoliosis children and potentially prevent its de novo development.
- Trial name
- NCT07335991
- Testing
- Vitamin A, Nutritional Education
- Where
- China
- Volunteers
- 140 people
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Hypertension, Vitamin D Deficiency
Effects of Vitamin D on Renin Expression in Hypertensive Patients
The cardiovascular effects of vitamin D therapy (in humans) have been documented only in patients with known vitamin D deficiency or hyperparathyroidism (a surrogate marker of inadequate vitamin D activity).
- Trial name
- NCT00585442
- Testing
- calcitriol
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- University of Utah
Hip Fracture, Vitamin D Deficiency
The Effect of Supplementation of Vitamin D Deficiency in Older People With Acute Hip Fracture:
This study will be done to evaluate the effect of load dose of vitamin D compared to the dose of usual clinical practice, in improving mobility and reducing disability in older people following a hip fracture.
- Trial name
- VITAMINA_D (NCT03213886)
- Testing
- Calcifediol (Vitamin D)
- Where
- Spain
- Volunteers
- 50 people
- Sponsor
- Leonor Cuadra Llopart
Vitamin D Deficiency
Vitamin D Deficiency and Placental Calcification in Low-risk Obstetric Population - Are They Related?
Maternal vitamin D deficiency has been suggested to influence fetal and neonatal health. The role of placenta in vitamin D regulation is known but alteration of Vitamin D levels at placental pathologies is unknown.
- Trial name
- NCT02190396
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Zekai Tahir Burak Women's Health Research and Education Hospital
Asthma, Vitamin D Deficiency
Vitamin D Oral Replacement in Asthma
The overall objective of the study is to determine the pharmacokinetics of Vitamin D supplementation in children who have asthma and are overweight or obese.
- Conditions
- Asthma, Vitamin D Deficiency, Pediatric Obesity
- Trial name
- VDORA1 (NCT03686150)
- Testing
- Vitamin D3 oral regimen
- Where
- 15 sites in United States
- Volunteers
- 112 people
- Sponsor
- IDeA States Pediatric Clinical Trials Network
X-linked Hypophosphatemia
Anti-FGF23 (Burosumab) in Adult Patients With XLH
X-linked hypophosphatemia (XLH) rare genetic disorder due by inactivating mutations in the PHEX gene leading to increased levels in FGF-23.
- Trial name
- BurGER (NCT04695860)
- Testing
- Burosumab
- Where
- Germany
- Volunteers
- 36 people
- Sponsor
- Wuerzburg University Hospital
Hypovitaminosis D
Changes in Serum Vitamin D Level After Different Loading Doses of Cholecalciferol
it is a clinical trial to observe increase in serum vitamin D level and clinical symptoms after 3 different doses of cholecalciferol given either intramuscularly or oral.
- Trial name
- NCT03504280
- Testing
- Cholecalciferol
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
Secondary Hyperparathyroidism, Chronic Kidney Disease
Study to Assess Patient Management Practices and Quality of Life With Paricalcitol Capsules in the Treatment of Secondary Hyperparathyroidism in Stage 3-5 Chronic Kidney Disease Patients Not Yet on Dialysis
Paricalcitol capsules (Zemplar®) received marketing authorization in Sweden in late 2007 for the prevention and treatment of secondary hyperparathyroidism in patients with Stage 3 \& 4 Chronic Kidney Disease (CKD).
- Trial name
- CAPITOL (NCT01265992)
- Where
- 10 sites in Sweden
- Volunteers
- 50 people
- Sponsor
- AbbVie (prior sponsor, Abbott)
Polycystic Ovary Syndrome, Insulin Resistance
Endocrine and Menstrual Disturbances in Women With Polycystic Ovary Syndrome (PCOS)
Polycystic ovary syndrome (PCOS) is a common endocrine disorder in reproductive age women, which causes disordered follicle growth and ovulation resulting in infertility.
- Conditions
- Polycystic Ovary Syndrome, Insulin Resistance, Vitamin D Deficiency, Obesity
- Trial name
- EMDPCOS (NCT03652987)
- Where
- United Kingdom
- Volunteers
- 300 people
- Sponsor
- St George's, University of London
Hypovitaminosis D
Vitamin D and Adipose Tissue: a Complex Relationship
The goal of this observational study is to verify the role of adipose tissue in determining the vitamin D serum level after monthly oral administration in subjects with vitamin D deficiency.
- Trial name
- ADIPOVITAD (NCT05957692)
- Where
- Italy
- Volunteers
- 58 people
- Sponsor
- Azienda Ospedaliera Universitaria Integrata Verona
Vitamin D Deficiency
Optimization of Blood Levels of 25(OH)-Vitamin D in African Americans
Two-thirds of the US population, particularly African Americans (AA), is at risk for inadequate or deficient 25-hydroxy-vitamin D (25(OH)VD).
- Trial name
- NCT04939792
- Testing
- Vitamin D, Vitamin D + L-cysteine, L-cysteine
- Where
- United States
- Volunteers
- 165 people, healthy volunteers welcome
- Sponsor
- Louisiana State University Health Sciences Center Shreveport
Psoriasis, Vitamin D Deficiency
The Effect of Vitamin D Supplementation on Psoriasis Severity
The study evaluates the effect of oral vitamin D supplementation on the severity of psoriasis measured by Psoriasis Area Severity Index (PASI) in adults with lower vitamin D levels.
- Trial name
- NCT03334136
- Testing
- 25-Hydroxyvitamin D
- Where
- Norway
- Volunteers
- 115 people
- Sponsor
- University Hospital of North Norway
Polycystic Ovary Syndrome, Vitamin D Deficiency
Association of Vitamin D Status With Metabolic Markers in Adolescents With Polycystic Ovary Syndrome
This prospective cross-sectional case-control study aims to investigate the relationship between serum vitamin D levels, visceral adipose tissue (VAT) thickness, and metabolic parameters in adolescents diagnosed with polycystic…
- Conditions
- Polycystic Ovary Syndrome, Vitamin D Deficiency, Insulin Resistance
- Trial name
- NCT06970821
- Where
- Turkey (Türkiye)
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Bagcilar Training and Research Hospital
B12 Deficiency Vitamin, Energy Supply; Deficiency
An Exploratory Investigation of a B12 Vitamin to Increase Energy and Focus
This study aims to examine the effects of Sourse's Hype Bites at being able to increase vitamin B12 levels to promote positive health outcomes. Participants will consume Hype Bites daily.
- Conditions
- B12 Deficiency Vitamin, Energy Supply; Deficiency, Mood
- Trial name
- NCT05517005
- Testing
- Hype Bites Supplement
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Sourse
Choline Deficiency, Vitamin B-12 Deficiency
Cracking the Egg Potential: Improving Young Child Nutrition in Ecuador
The proposed study will fill an important gap in the literature by examining, through a randomized controlled trial, the effect of egg consumption on biochemical markers of choline, vitamin B-12, lipids, and amino acids in young…
- Conditions
- Choline Deficiency, Vitamin B-12 Deficiency, Lipids Deficiency, Amino Acids Deficiency
- Trial name
- NCT02446873
- Testing
- Egg supplementation
- Where
- Ecuador
- Volunteers
- 171 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Retinal Disease, Age-Related Macular Degeneration
Stem Cell Ophthalmology Treatment Study II
This study will evaluate the use of autologous bone marrow derived stem cells (BMSC) for the treatment of retinal and optic nerve damage or disease.
- Conditions
- Retinal Disease, Age-Related Macular Degeneration, Retinitis Pigmentosa, Stargardt Disease
- Trial name
- SCOTS2 (NCT03011541)
- Testing
- Arm 1
- Where
- 4 sites in United States, Austria and 1 more
- Volunteers
- 500 people
- Sponsor
- MD Stem Cells
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