Clinical trials: Avitaminosis
Obesity, Child
Thiamin Deficiency in Obese Thai Children
This study is aimed to assess the prevalence of thiamin deficiency in obese Thai children.
- Conditions
- Obesity, Child, Thiamine Deficiency
- Trial name
- NCT02464865
- Testing
- Thiamine 1, Non-thiamine, Thiamine 2
- Where
- Thailand
- Volunteers
- 124 people, healthy volunteers welcome
- Sponsor
- Mahidol University
Non-Alcoholic Fatty Liver Disease, Fat Soluble Vitamin Deficiencies and Disorders
Study on the Correlation Between Fat Soluble Vitamins and Non-alcoholic Fatty Liver Disease
Excessive or insufficient levels of vitamins in the body can affect health. With the prevalence of obesity and MetS, NAFLD has become the leading cause of chronic liver disease and abnormal liver biochemical indicators in health…
- Trial name
- NCT06512701
- Where
- China
- Volunteers
- 4,000 people, healthy volunteers welcome
- Sponsor
- First Affiliated Hospital of Zhejiang University
Vitamin D Deficiency
Vitamin D Status Fluctuations Over One Academic Year in Students
The main objective of the study is to assess changes in the concentration of vitamin D metabolite in serum throughout the academic year and to examine its relationship with the occurrence of inflammation indicators, dietary…
- Trial name
- NCT06677411
- Testing
- Observention of vitamin D
- Where
- 2 sites in Poland
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Poznan University of Life Sciences
Vitamin D Deficiency
The Genetic Effects on Vitamin D Supplementation
Vitamin D is essential for skeletal growth and bone health, deficiency causes rickets and osteomalacia. In the UK 29% of adults have vitamin D deficiency. It is recommended all adults take 10µg vitamin D supplement daily.
- Trial name
- NCT05802433
- Testing
- Vitamin D3 supplement
- Where
- United Kingdom
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- St. Mary's University, Twickenham
Vitamin D Deficiency
Bone Myoregulation Reflex and Postural Control in Vitamin D Deficiency
This observational study aims to investigate the relationship between vitamin D deficiency, postural stability, and neuromuscular control mechanisms in adults.
- Trial name
- BMR-VITD (NCT07435935)
- Where
- Turkey (Türkiye)
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Istanbul Physical Medicine Rehabilitation Training and Research Hospital
Osteoporosis, Osteopenia
Does Treatment of Hypovitaminosis D Increase Calcium Absorption?
The purpose is to perform a one-year study designed to assess whether treatment of hypovitaminosis D increases intestinal absorption of calcium, subsequent retention of calcium within bone, decreases bone turnover, and favorably…
- Conditions
- Osteoporosis, Osteopenia, Vitamin D Deficiency, Hypoparathyroidism
- Trial name
- NCT00581828
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Neural Tube Defects, Folic Acid Deficiency
Using Iodized Salt to Improve Serum Folate, B12 and Iron Levels
Question: How effective is fortified iodized salt in increasing serum concentrations of folate, B12 and iron among non-pregnant and non-lactating women of reproductive age? Hypothesis: Micronutrient fortified iodized salt can…
- Conditions
- Neural Tube Defects, Folic Acid Deficiency, Spina Bifida, Anencephaly-Spina Bifida
- Trial name
- NCT06904612
- Testing
- Micronutrient fortified iodized salt
- Where
- 2 sites in United States, India
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Hydrocephalus and Neuroscience Institute
Cardiovascular Disease, Hyperhomocysteinemia
Prevalence Of Hyperhomocysteinemia In Thai Chronic Kidney Disease (CKD) Patients
It is well recognized that patients with chronic kidney disease (CKD) have an increased risk for cardiovascular disease (CVD) and hyperhomocysteinemia appears to be a predictor of future CVD events.
- Trial name
- NCT01391416
- Volunteers
- 98 people, healthy volunteers welcome
- Sponsor
- Bangkok Metropolitan Administration Medical College and Vajira Hospital
Vitamin A Deficiency, Vitamin A Toxicity
Vitamin A Liver Reserves and Serum Markers of Vitamin A in US Adults at Time of Death
Minimal human data exist on actual liver vitamin A compared with blood biomarkers. One blood biomarker, the percent of total serum retinol (vitamin A) in the form of retinyl esters, has been suggested to diagnose hypervitaminosis…
- Trial name
- NCT03305042
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Vitamin D Deficiency
Effect of Consumption of Post-harvest UV-B Treated Mushrooms on Vitamin D Status of Healthy Adults
This study will investigate whether mushrooms treated with ultraviolet (UV) light to increase their vitamin D2 content are actually a good source of vitamin D when consumed daily with a meal (lunch).
- Trial name
- NCT01443897
- Testing
- 1,000 IU vitamin D2, mushrooms, UVB-treated mushrooms, 400 IU vitamin D2
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research Center
Infertility, Female, Vitamin D Deficiency
Vitamin D Status Among Infertile Women in Sweden
The goal of this prospective cohort study is to learn about the overall and seasonal prevalence of vitamin D insufficiency and its determinants in a population of women with infertility who will go through in vitro fertilization…
- Trial name
- NCT05848349
- Where
- Sweden
- Volunteers
- 265 people, healthy volunteers welcome
- Sponsor
- Vastra Gotaland Region
Vitamin D Deficiency
Vitamin D in Periodontal and Cardiovascular Disease Progression
Vitamin D has been considered to possess anti-inflammatory and antimicrobial activity which may be a link for the known interaction of periodontitis (CP) and coronary heart disease (CHD).
- Trial name
- NCT03873935
- Testing
- Evaluation of periodontal status
- Where
- Italy
- Volunteers
- 179 people, healthy volunteers welcome
- Sponsor
- University of Messina
Vitamin D Deficiency, Recurrent Spontaneous Abortion
Study on Clinical Value of Vitamin D in Recurrent Spontaneous Abortion
The observational study is to compare vitamin D deficiency and related indicators among different spontaneous abortions in describe female reproductive health.The main question aim to answer is: the possible pathogenesis of…
- Trial name
- NCT06002035
- Testing
- Binom Vitamin D drops
- Where
- China
- Volunteers
- 1,421 people, healthy volunteers welcome
- Sponsor
- Jianmei Xia
Child Developmental Delay, Child Malnutrition
Maternal B12 Supplementation to Improve Infant B12 Deficiency and Neurodevelopment
Vitamin B12 plays a key role in the development and normal functioning of the brain and nervous system. Unborn and new-born infants derive their vitamin B12 stores almost entirely from maternal B12 stores.
- Conditions
- Child Developmental Delay, Child Malnutrition, Maternal Exposure, Vitamin B 12 Deficiency
- Trial name
- MATCOBIND (NCT03783104)
- Testing
- B12 Supplement
- Where
- 2 sites in India, Nepal
- Volunteers
- 720 people, healthy volunteers welcome
- Sponsor
- University College, London
Other Preterm Infants, Vitamin D Deficiency
The Effect of Vitamin D Administration to Premature Infants on Vitamin D Status and Respiratory Morbidity
This trial objective is to assess whether doubling the daily intake of vitamin D improves serum vitamin D levels and serves as primary prevention of respiratory infections and asthma in premature infants.
- Conditions
- Other Preterm Infants, Vitamin D Deficiency, Bronchiolitis, Asthma
- Trial name
- NCT02404623
- Testing
- Vitamin D
- Where
- Israel
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Soroka University Medical Center
Anemia, Folate Deficiency
Quadruple Fortified Salt Trial in India
Women of reproductive age are at an increased risk of anemia and micronutrient deficiencies. Evidence supports the role of periconceptional nutrition in the development of neural tube defects and other pregnancy complications.
- Conditions
- Anemia, Folate Deficiency, Vitamin B 12 Deficiency
- Trial name
- QFS (NCT03853304)
- Testing
- + Folic acid, + Vitamin B12, DFS
- Where
- India
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Cornell University
Mental Wellbeing, Depression, Anxiety
Effects of Vitamin D on the Behaviours, Mental, and Physical Health of Prisoners
This study aims to understand how vitamin D (VD) affects human health. Typically, prisoners are low on vitamin D, as it is difficult to receive through diet, and is mostly obtained via exposure to the sun.
- Conditions
- Mental Wellbeing, Depression, Anxiety, Bone Density, Low, Vitamin D Deficiency
- Trial name
- NCT05724316
- Testing
- Vitamin D supplement
- Where
- United Kingdom
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Oxford Brookes University
Maintenance Dose, Osteocalcin
Estimation of a Maintaining Daily Jarlsberg Cheese-dose
The study objective is to estimate a maintaining daily dose of Jarlsberg cheese in healthy pre-menopausal women obtaining an increase in the osteocalcin level of at least 10% after 6 weeks on maximum efficacy dose (MED) of…
- Conditions
- Maintenance Dose, Osteocalcin, Vitamin K Deficiency
- Trial name
- NCT04188080
- Testing
- Jarlsberg Cheese
- Where
- Norway
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Meddoc
Vitamin D Deficiency
The Effect of Vitamin D Supplements on Vitamin D Status, Cardiometabolic Health and Immune Defense in Danish Children
The main purpose of this study is to investigate whether and in which doses vitamin D intake is needed in order to maintain an adequate vitamin D status in 4-8 year-old Danish children during wintertime.
- Trial name
- ODIN Junior (NCT02145195)
- Testing
- Vitamin D3 (cholecalciferol)
- Where
- Denmark
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Vitamin D Deficiency
Efficacy of the Dose Regimen of Oral Vitamin D 50,000 IU in the Treatment of Vitamin D Deficiency
Abstract: The main objective of the proposed study is to examine the Safety and Efficacy Evaluation of the Dose Regimen of Vitamin D 50,000 IU (Biodal) tablet supplementation in the treatment of population with vitamin D…
- Trial name
- NCT02192229
- Testing
- 50.000 IU vitamin D3 (Biodal 50,000 IU)
- Where
- Jordan
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Hayat Pharmaceutical Co. PLC