Clinical trials: Vitamin Deficiencies
Crohn Disease, Vitamin D Deficiency
Effects of Supplementation of Vitamin D in Patients With Crohn's Disease
Thus, the aim of the current study is to assess the influence of vitamin D deficiency and, consequently, of serum calcium deficiency in the body composition, muscular activity, bone mineral density, fatigue, and exercise…
- Conditions
- Crohn Disease, Vitamin D Deficiency, Fatigue, Sarcopenia
- Trial name
- NCT02704624
- Testing
- Vitamin D
- Where
- Brazil
- Volunteers
- 110 people
- Sponsor
- Federal University of Juiz de Fora
Transplantation, Ascorbic Acid Deficiency
Observational Study on the Variation of Ascorbic Acid in Patients Undergoing Solid Organ Transplantation
The objective of this observational clinical study is to evaluate the variations in ascorbic acid during the transplantation phases and how these variations influence the oxidative status and patient outcome.
- Trial name
- REDOX-TX (NCT06395259)
- Where
- Italy
- Volunteers
- 40 people
- Sponsor
- Policlinico Hospital
Vitamin D Inadequacy, Vitamin D Deficiency
Clinical Approaches to Correcting Vitamin D Inadequacy and Maintaining Adequacy
Vitamin D is available in two forms, vitamin D2 and vitamin D3. It has previously been assumed that these two forms maintain blood vitamin D equally. However, this may not be the case.
- Trial name
- D2/D3 (NCT00692120)
- Testing
- Cholecalciferol (vitamin D3), Ergocalciferol (vitamin D2)
- Where
- United States
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
PRF, Vitamin D Deficiency
Effect of Vitamin D Deficiency on the Structure of Titanium Platelet-Rich Fibrin
ABSTRACT The aim of the study was to compare the macroscopic properties, chemical degradation levels, and fibrin network structures of T-PRF membranes obtained from systemically healthy individuals with optimal vitamin D levels…
- Conditions
- PRF, Vitamin D Deficiency, Vitamin Deficiency
- Trial name
- T-Prf (NCT06870786)
- Testing
- Vitamin D (Cholecalciferol )
- Where
- Turkey (Türkiye)
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Abant Izzet Baysal University
Vitamin d Deficiency
The Effect of UV-C Enriched Foods on Vitamin D Deficiency
This study is an experimental design study in which demographic characteristics, food consumption, biochemical parameters and anthropometric measurements of individuals with low vitamin D levels before and after consuming…
- Trial name
- NCT06098820
- Testing
- Vitamin D status
- Where
- Turkey (Türkiye)
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Okan University
Iron Deficiency (Without Anemia), B12 Deficiency Vitamin
Hydroponic Fortification and Dietary App Effect on Nutrients Level (Harvest)
Veganism and vegetarianism have clear benefits where they have a lower risk of many health issues. However, they also have a higher risk of nutrients and vitamin deficiency such as iron and vitamin B12.
- Trial name
- NCT05740462
- Testing
- Recipes consumption, Hydroponic unit
- Where
- United Kingdom
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Quadram Institute Bioscience
Vitamin D Deficiency
Vitamin D3 Supplementation Pilot Study
The purpose of this research study is to determine whether taking vitamin D, every day, over a 12 week period will improve the vitamin D status, risks for poor heart health, risks for developing type 2 diabetes, and/or muscle…
- Trial name
- NCT01546103
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Children's Hospital of Philadelphia
Vitamin B 12 Deficiency
Early Infant Micronutrition and Development
Globally, vitamin B12 deficiency is one of the most common micronutrient deficiencies. Poor status is also seen in affluent countries such as in Norway.
- Trial name
- RART (NCT05005897)
- Testing
- Cyanocobalamin
- Where
- Norway
- Volunteers
- 600 people
- Sponsor
- Sykehuset Innlandet HF
Covid19, Vitamin D Deficiency
High Dose Vitamin-D Substitution in Patients With COVID-19: a Randomized Controlled, Multi Center Study
The world is currently facing a pandemic with the coronavirus (SARS-CoV-2) which leads to the disease of COVID-19. Risk factors for a poor outcome of COVID-19 have so far been identified as older age and co-morbidity including…
- Conditions
- Covid19, Vitamin D Deficiency, Corona Virus Infection, ARDS
- Trial name
- VitCov (NCT04525820)
- Testing
- Single high dose vitamin D, Treatment as usual vitamin D
- Where
- 2 sites in Switzerland
- Volunteers
- 80 people
- Sponsor
- Prof. Dr. Jörg Leuppi
Folate Deficiency, Vitamin B 12 Deficiency
Effectiveness of Fortification With Folic Acid and Vitamin B12 Among Teenage Girls
Folic acid and vitamin B12 play an interdependent role in key cellular processes, namely deoxyribonucleic acid synthesis, cell division, red blood cell formation, and nervous system myelination.
- Conditions
- Folate Deficiency, Vitamin B 12 Deficiency, Anemia, Megaloblastic, Cognitive Development
- Trial name
- NCT06100146
- Testing
- Folic acid and vitamin B12 fortified flour, Unfortified cereal flour
- Where
- 2 sites in Ethiopia
- Volunteers
- 472 people, healthy volunteers welcome
- Sponsor
- University Ghent
Epilepsy, Hypovitaminosis D
Effect of Vitamin D3 Supplementation on Brain Waves in Male Epileptic Patients With Hypovitaminosis D
This is an experimental study (interventional self-controlled trial, pretest-post test design). The goal of this clinical trial is to evaluate the effect of vitamin D3 supplementation on quantitative EEG in male epileptic…
- Trial name
- NCT07096414
- Testing
- Vitamin D3
- Where
- Bangladesh
- Volunteers
- 15 people
- Sponsor
- Bangladesh Medical University
Vitamin A Deficiency
Effect of Daily Consumption of Orange Maize on Breast Milk Retinol in Lactating Zambian Women
The purpose of the study is to determine whether daily consumption of beta-carotene biofortified maize will increase breast milk retinol concentration in lactating Zambian women.
- Trial name
- NCT01922713
- Testing
- white maize and a corn oil capsule, orange maize and a corn oil capsule, white maize and a vitamin A capsule
- Where
- Zambia
- Volunteers
- 149 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Infertility,Male, Vitamin D Deficiency
Vitamin D and Human Sperm DNA Fragmentation
The purpose of this study will be to investigate if there is a correlation between Vitamin D levels and Sperm DNA Fragmentation. This is a prospective, cohort study.
- Trial name
- NCT03829943
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 230 people
- Sponsor
- Sanford Health
Obese, Vitamin D Deficiency
Roles of Vitamin D and HDL in Obese Children
This is a pilot study to determine the association between Vitamin D deficiency in obese children and low high density lipoprotein (HDL) and dysfunctional HDL.
- Conditions
- Obese, Vitamin D Deficiency, Low HDL
- Trial name
- NCT02135913
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 1 people
- Sponsor
- Xiang-An Li
Vitamin D Deficiency, Obesity
Vitamin D Deficiency in Obese Adolescent Girls and Influence of Vitamin D on Insulin Secretion and Sensitivity
Sub-clinical vitamin D deficiency is a commonly unrecognized disorder in obese adolescents. The investigators hypothesize vitamin D deficiency will be highly prevalent in obese adolescents and those who are vitamin D deficient…
- Conditions
- Vitamin D Deficiency, Obesity, Insulin Resistance
- Trial name
- NCT00850694
- Where
- United States
- Volunteers
- 114 people
- Sponsor
- University of Alabama at Birmingham
Hypovitaminosis D, Pregnancy Complications
Effect of Vitamin D Replacement on Maternal and Neonatal Outcomes
The optimal vitamin D replacement dose during pregnancy remains undefined. Therefore, the aim of this study is to test the hypothesis that a daily equivalent dose of vitamin D of 3,000 IU/day is needed for Middle Eastern women…
- Conditions
- Hypovitaminosis D, Pregnancy Complications, Infant, Newborn, Diseases
- Trial name
- NCT02434380
- Testing
- Euro D
- Where
- Lebanon
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- American University of Beirut Medical Center
Fibromyalgia, D Vitamin Deficiency
Valuation of Efficacy and Safety of Vitamin D3 Use in 80 Women Diagnosed With Fibromyalgia. Using FIQ Score and VAS.
Fibromyalgia is a disease that significantly decreases the quality of life of people who suffer from it, has great repercussions at the socio-economic level due to the incapacity it produces.
- Trial name
- NCT03369379
- Testing
- D3 Vitamin
- Where
- Mexico
- Volunteers
- 80 people
- Sponsor
- Universidad Autonoma de Nuevo Leon
Vitamin A Deficiency
Dietary Vitamin A Requirement in Chinese Children and the New Technology of Dietary Assessment
Vitamin A deficiency remains a major public health problem in developing country worldwide. Young Children are considered to be at greatest risk of deficiency.
- Trial name
- NCT01559766
- Where
- China
- Volunteers
- 403 people
- Sponsor
- Huazhong University of Science and Technology
Vitamin D Deficiency
Effects of Vitamin D Supplementation on Strength, Bone Density, and Injury Risk in Collegiate Athletes
The goal of this study is to determine whether Vitamin D supplementation improves strength and bone density, and reduces the risk of injury in collegiate athletes.
- Trial name
- NCT03151174
- Testing
- Vitamin D 10000 UNT, Vitamin D 5000 UNT
- Where
- United States
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Virginia Polytechnic Institute and State University
Iron-deficiency, Vitamin A Deficiency
Senegal Market Study for Food-to-Food Fortified (F2F) Instant Porridge Flours
The overall hypotheses is that a product designed with optimized nutritional characteristics, based on consumer preferences and leveraging local nutrient dense ingredients, can successfully deliver nutrition through sustainable…
- Trial name
- SenegalMPS (NCT05872061)
- Testing
- Acceptability of food-to-food fortified (FtFF) instant porridge flours
- Where
- Senegal
- Volunteers
- 1,800 people, healthy volunteers welcome
- Sponsor
- Purdue University
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