Clinical trials: Vitamin Deficiencies
Chronic Kidney Disease Mineral and Bone Disorder, Renal Osteodystrophy
The Effect of Etelcalcetide on CKD-MBD
The proposed study will investigate the effects of etelcalcetide on the bone and blood-vessel health in patients with CKD-MBD. The investigators will test if etelcalcetide makes bone and blood-vessels healthier.
- Conditions
- Chronic Kidney Disease Mineral and Bone Disorder, Renal Osteodystrophy, Vascular Calcification, Hyperparathyroidism; Secondary, Renal
- Trial name
- Parsabiv-MBD (NCT03960437)
- Testing
- Etelcalcetide
- Where
- United States
- Volunteers
- 22 people
- Sponsor
- Thomas Nickolas, MD MS
Hypovitaminosis, Vitamin A Deficiency
Impact of Maternal Supplementation With Dual Megadose of Vitamin A
The purpose of this study is to evaluate the effect of maternal supplementation with 400,000 IU of oral retinol palmitate in the post-partum, the nutritional situation of the binomial mother-child, on growth and morbidity of…
- Trial name
- NCT00742937
- Testing
- vitamin A
- Where
- Brazil
- Volunteers
- 239 people, healthy volunteers welcome
- Sponsor
- Instituto Materno Infantil Prof. Fernando Figueira
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
Vitamin Deficiencies
Trial Comparing Elan Specialized Bariatric Supplements With Standard Multivitamins in Patients Undergoing Bariatric Procedures
Obesity has escalated to pandemic levels, impacting over 650 million adults globally and significantly contributing to the burden of non-communicable diseases such as type 2 diabetes, cardiovascular disease, obstructive sleep…
- Trial name
- NCT07021170
- Testing
- Elan Believe, Elan Compass, Elan Supreme
- Where
- Egypt
- Volunteers
- 624 people, healthy volunteers welcome
- Sponsor
- General Committee of Teaching Hospitals and Institutes, Egypt
Anemia, Vitamin D Deficiency
Evaluate the Change in Iron, Vitamin D, and C-Reactive Protein Level (CRP) in a 12 to 24 Week Period
The purpose of this study is to observe changes in iron status and vitamin D status during a 12-24 week supervised training program, specifically males and females between the ages of 30 and 50 years old.
- Trial name
- NCT01328704
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Avera McKennan Hospital & University Health Center
Polycystic Ovary Syndrome, Vitamin D Deficiency
30000 IU Per Week Vitamin D Treatment in PCOS Patients
This is a human, II/b phase, multicentre, randomised, double blind, placebo-controlled study to assess the safety and the efficacy of a weekly administered dose of 30,000 IU vitamin D (colecalciferol) in deficient patients…
- Trial name
- NCT04840238
- Testing
- Cholecalciferol
- Where
- 8 sites in Hungary
- Volunteers
- 115 people
- Sponsor
- Semmelweis University
Vitamin D Deficiency
Vitamin D Intervention Trial in Healthy Chinese
To determine the dose-response between the doses of vitamin D3 supplements and raised serum levels of 25(OH)D and also the dose of vitamin D3 required to achieve circulating 25(OH)D ≥ 75 nmol/L;
- Trial name
- NCT01817036
- Testing
- Vitamin D
- Where
- China
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Chinese Academy of Sciences
Vitamin D Deficiency, Pregnancy
Vitamin D Status of Pregnant Women and Their Children in Eau Claire, South Carolina
Science News (October 2004) called vitamin D deficiency a "silent epidemic" in America, with no group unaffected. Using new guidelines of optimal vitamin D levels, more than 90% of African American women now suffer from vitamin D…
- Trial name
- NCT00412087
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 564 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Vitamin B 12 Deficiency
Cobalamin Supply and Metabolism in Healthy Children From Birth to the Age of 12 Months and in Their Mothers (Cbl_Neo)
Introduction: Infants with severe vitamin B12 (cobalamin, Cbl) deficiency can develop severe, sometimes irreparable neurological damage in the first months of life.
- Trial name
- Cbl_Neo (NCT05315843)
- Where
- 2 sites in Austria, Germany
- Volunteers
- 160 people
- Sponsor
- University Children's Hospital, Zurich
Deficiency, Vitamin D, Obesity
Dosage Calculation for Vitamin D Treatment
Severe vitamin D deficiency can be treated with oral loading doses of cholecalciferol. Our objective was to determine how to calculate the quantity of cholecalciferol needed for supplementation by single algorithm, usable on a…
- Trial name
- NCT02186106
- Testing
- Cholecalciferol
- Volunteers
- 31 people
- Sponsor
- Bispebjerg Hospital
Crohn's Disease, Vitamin D Deficiency
Trial of High Dose Vitamin D in Patient's With Crohn's Disease
Crohn's disease is more common in areas of the world with less sunlight exposure. Sunlight is a major source of vitamin D. There is some research to suggest that patient's with higher vitamin D levels are less likely to undergo…
- Trial name
- RODIN-CD (NCT02208310)
- Testing
- Cholecalciferol 10,000 IU, Cholecalciferol 400 IU
- Where
- 4 sites in United States
- Volunteers
- 11 people
- Sponsor
- University of Michigan
Vitamin D Deficiency, Vitamin D Insufficiency
The Effects of Serum Vitamin D and IVF Outcome
The purpose of this study is to investigate whether an association exists between serum vitamin D levels and IVF treatment outcome
- Conditions
- Vitamin D Deficiency, Vitamin D Insufficiency, Infertility
- Trial name
- VIDIO (NCT02187146)
- Where
- United Kingdom
- Volunteers
- 504 people, healthy volunteers welcome
- Sponsor
- University of Birmingham
Vitamin D Deficiency
Immunologic Action of a Single Dose Cholecalciferol
Vitamin D receptors are expressed in activated different immune cells. It is not known, which immune cell type is targeted by exogenous vitamin D. Here, vitamin D-deficient individuals will receive once 100.000 I.U.
- Trial name
- ViDImmun (NCT01845142)
- Testing
- single administration of 100.000 I.U. vitamin D
- Where
- Germany
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Margitta Worm
Cardiovascular Diseases, Cerebrovascular Accident
Homocyst(e)Ine, Vitamin Status, and CVD Risk
To test the hypotheses that the risk of myocardial infarction and/or stroke is associated with elevated plasma levels of homocysteine, and low plasma levels of folate, vitamins B12 and B6.
- Conditions
- Cardiovascular Diseases, Cerebrovascular Accident, Coronary Disease, Myocardial Infarction
- Trial name
- NCT00005482
- Sponsor
- University of Washington
Patients With Hypovitaminosis C and D, Vitamin Deficiencies
Vitamin Therapy in JGH Patients
There is a high prevalence of hypovitaminosis C and D in our hospital and other acute-care hospitals. Since the correction of these presumed deficiency states is simple, safe and inexpensive, their documented or suspected…
- Trial name
- NCT01630720
- Testing
- vitamin C or vitamin D
- Where
- Canada
- Volunteers
- 88 people
- Sponsor
- Jewish General Hospital
Anemia, Iron-deficiency
Preoperative Anaemia prevaLence In surgiCal patiEnts
Preoperative anaemia is common in surgery, with a prevalence between 10 and 50 %, and is an independent risk factor for morbidity and mortality.
- Conditions
- Anemia, Iron-deficiency, Folic Acid Deficiency, Vitamin B 12 Deficiency
- Trial name
- ALICE (NCT03978260)
- Where
- Germany
- Volunteers
- 2,500 people
- Sponsor
- Johann Wolfgang Goethe University Hospital
Vitamin D Deficiency
Evaluation Of The Effect Of L. Casei DG® On Vitamin D Absorption In Patients Under Vitamin D Supplementation.
Vitamin D deficiency is one of the most underdiagnosed and undertreated medical condition worldwide . The microbiome and vitamin D deeply influence each other and the immune system in many different ways.
- Trial name
- NCT05394207
- Testing
- L. casei DG® (Lactobacillus paracasei CNCM I-1572)
- Where
- United Arab Emirates
- Volunteers
- 46 people
- Sponsor
- SOFAR S.p.A.
COVID, Vitamin D Deficiency
Vitamin D Levels in SARS-CoV-2: Do Current Adequacy Thresholds Reflect Clinical Risk? Insights From a Large Turkish Cohort
Blood vitamin D levels may be associated with severity of viral infections. To find out If there is a statistically significant relation between blood 25-hydroxy vitamin D (25(OH)D) levels and disease severity, patients with…
- Trial name
- NCT04394390
- Testing
- vitamin d
- Where
- Turkey (Türkiye)
- Volunteers
- 1,100 people
- Sponsor
- Bursa City Hospital
Hypertension (HTN), Hyperhomocysteinemia
Homocysteine and Early Diastolic Dysfunction in Newly Diagnosed Hypertension
This prospective single-center observational study aims to evaluate the relationship between elevated plasma homocysteine levels and early echocardiographic abnormalities in patients with newly diagnosed essential hypertension.
- Conditions
- Hypertension (HTN), Hyperhomocysteinemia, Diastolic Dysfunction
- Trial name
- HHT-EDD (NCT07480265)
- Testing
- Homocysteine Measurement and Echocardiography
- Where
- Turkey (Türkiye)
- Volunteers
- 500 people
- Sponsor
- Necmettin Erbakan University
Respiratory Tract Infection, Vitamin D Deficiency
Cholecalciferol Intervention to Prevent Respiratory Infections Study
This is a feasibility double-blind randomised controlled trial in 32 participants. It evaluates the feasibility of a full trial which will examine the efficacy of weekly supplementation of cholecalciferol (vitamin D3) relative to…
- Trial name
- CIPRIS (NCT01549938)
- Testing
- Cholecalciferol
- Where
- Australia
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Menzies Institute for Medical Research
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