Clinical trials: Vitamin Status Assessment
Diet Habit
Women's Health Food Frequency Questionnaire
The aim of this study is to develop a tool that can measure the iron, folate, and vitamin B12 content of a diet through a literature review, database search, and a pilot study using a food consumption record.
- Trial name
- NCT05843942
- Testing
- Questionnaire
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 450 people
- Sponsor
- Hacettepe University
Healthy Infants
Influence of Inflammation on Micronutrient Status Assessment
Inflammation can influence several biochemical measurements those commonly used to interpret micronutrient status in children. Our primary objective is to investigate the effects of inflammation on several biochemical…
- Trial name
- NCT03801161
- Testing
- Pentavalent vaccine. It is a combination of five different antigens (Hepatitis B (HBV)/ Haemophilus influenzae type b (HiB) / Tetanus-Diphtheria-whole cell Pertussis (TDwP)).
- Where
- 2 sites in Bangladesh
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- International Centre for Diarrhoeal Disease Research, Bangladesh
Knee Osteoarthritis, Vitamin D Deficiency
Prospective, Assessment of Vitamin D and Calcium Supplementation, Improvement of Nutritional Status and Preoperative Rehabilitation in Patients Before Knee Arthroplasty.
Prospective randomized study of 150 patients qualified for knee arthroplasty between 2015 and 2017. Patients were randomized into 3 groups receiving vitamin D and calcium supplementation, increased protein supply and preoperative…
- Conditions
- Knee Osteoarthritis, Vitamin D Deficiency, Pain, Postoperative, Arthropathy of Knee
- Trial name
- NCT04291833
- Testing
- Intervention group 1, Intervention group 2, Control group 0
- Where
- Poland
- Volunteers
- 150 people
- Sponsor
- Jagiellonian University
25-hydroxyvitamin D Concentration (Vitamin D Status)
D-Light Intervention
Vitamin D insufficiency has become a global concern, with low vitamin D status associated with bone disorders, cardiovascular disease and certain cancers.
- Trial name
- D-Light (NCT02495584)
- Testing
- Fortified milk (10µg vitamin D3), 10µg vitamin D3 supplement
- Where
- United Kingdom
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Hypovitaminosis D, Deficiency of Micronutrients
Investigation of Vitamin D3 Enriched, Reduced-fat Yellow Cheese Efficacy to Prevent Vitamin D Deficiency
The primary aim of the current study was to investigate whether the consumption of vitamin D3 enriched, reduced-fat yellow cheese can counterbalance the expected decrease in serum 25-hydroxyvitamin D concentration during winter…
- Trial name
- NCT02543671
- Testing
- vitamin D3 enriched, reduced-fat yellow cheese, plain (non-fortified) reduced-fat yellow cheese
- Where
- Greece
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Harokopio University
Vitamin d, Vitamin B 12 and Folic Acid Concentrations, Micronutrient Status in Women of Reproductive Age
Vitamin B12, Folic Acid, and Vitamin D Status in Women of Reproductive Age
This cross-sectional observational study aims to assess serum concentrations of vitamin B12, folic acid, and vitamin D in women of reproductive age in Herzegovina.
- Conditions
- Vitamin d, Vitamin B 12 and Folic Acid Concentrations, Micronutrient Status in Women of Reproductive Age, Vitamin Status Assessment
- Trial name
- NCT07099586
- Testing
- No Interventions
- Where
- Bosnia and Herzegovina
- Volunteers
- 360 people
- Sponsor
- University of Mostar
Nutrition Status, Bone Health
Evaluation of Calcium and Vitamin D Supplementation During Marine Corps Training
The primary objective of this randomized, double-blind, placebo-controlled trial is to determine the efficacy and effectiveness of Ca and vitamin D supplementation provided daily throughout Marine Corps recruit training on…
- Trial name
- MCRD-PI (NCT02636348)
- Testing
- Calcium/Vitamin D
- Where
- United States
- Volunteers
- 380 people, healthy volunteers welcome
- Sponsor
- United States Army Research Institute of Environmental Medicine
Premature Infants
Effect of Vitamin D in Diets of Preterm Infants
Transitional formulas (22 kcal/oz) are recommended for infants less than 35 weeks gestation at birth. However, few data are available related to follow-up of infants receiving these formulas who were 28-34 weeks gestation at…
- Trial name
- NCT01698840
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 39 people
- Sponsor
- Baylor College of Medicine
Healthy Infants, Infants With an Inflammatory Condition
Novel Isotope Dilution Technique to Assess Vitamin A Status
Background: There is no reliable method for vitamin A (VA) assessment for infants and young children. Serum VA concentration is not an authenticate indicator of VA status, while existing deuterium- VA isotope dilution methods to…
- Trial name
- NCT03000543
- Testing
- Vaccine
- Where
- 2 sites in Bangladesh
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- International Centre for Diarrhoeal Disease Research, Bangladesh
Vitamin D Deficiency
OASIS Study: Vitamin D Deficiency Prevention Among Older Adults in Ireland
Vitamin D deficiency is common. It is caused by limited sun availability together with a low supply of vitamin D in the food system. There is a high prevalence of low vitamin D status around the world.
- Trial name
- OASIS (NCT06705582)
- Testing
- Fortified Bread, Unfortified bread
- Where
- 2 sites in Ireland
- Volunteers
- 117 people, healthy volunteers welcome
- Sponsor
- University College Cork
Parkinson's Disease
Vitamin B12 Status and Response to Vitamin B12 Supplementation in Patients With Parkinson's Disease
Based on Parkinson's disease (PD)/vitamin B12 deficiency symptom overlap and PD patients' propensity to avoid protein (the dietary source of vitamin B12), this study proposes to prospectively investigate the vitamin B12 status of…
- Trial name
- NCT00208611
- Testing
- Vitamin B12 Supplementation
- Where
- United States
- Volunteers
- 57 people
- Sponsor
- Emory University
Nutritional Status, Nutrient Deficiency
Challenges in Achieving Adequate Dietary Status of Women
The aim of the study is to investigate the dietary habits of women of reproductive age (20-49 years). We aim to obtain epidemiological data on the intake and adequacy of key macronutrients and micronutrients, as well as to…
- Conditions
- Nutritional Status, Nutrient Deficiency, Micronutrient Deficiency, Vitamin D Deficiency
- Trial name
- NutriFem (NCT06745817)
- Testing
- Assessement of nutritional status, Dermis density and thickness, Skin elasticity
- Where
- 3 sites in Slovenia
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Institute of Nutrition, Slovenia (Nutris)
Ckd-Mbd
Relationship Between Cardiopulmonary Exercise Testing and Ca-P in Chronic Kidney Disease (CKD)
Reductions in exercise capacity associated with exercise intolerance augment cardiovascular disease risk and predict mortality in chronic kidney disease.
- Trial name
- NCT04013139
- Testing
- CPET
- Where
- Iran
- Volunteers
- 200 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
Vitamin D, Physical Function
Vitamin D and Physical Function in Older Adults
Projections from NHANES III indicate that approximately 12,000,000 U.S. adults ≥ 60 years of age have vitamin D insufficiency (serum 25(OH)D < 50 nmol/L).
- Trial name
- NCT00710957
- Volunteers
- 1,100 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Obesity, Morbid
Aspiration Therapy for Obese Adolescents
Interventional studies devoted to adolescents are relatively rare in the world. This has several reasons. Treatment and research on obesity are centered on advanced forms of obesity in adults, bearing in mind that social and…
- Trial name
- NCT03598920
- Testing
- AsspireAssist, Nutritional consulting
- Where
- 3 sites in Czechia
- Volunteers
- 20 people
- Sponsor
- University Hospital Ostrava
Obesity, Nutritional Deficiencies
Assessment of Nutritional Status After Gastric Bypass Surgery
This study is aimed at assessing how Roux-en-Y gastric bypass (RYGP) impacts on energy and nutrients' intake, energy expenditure, and nutritional status in obese patients.
- Trial name
- NCT01891591
- Testing
- Roux-en-Y gastric bypass (RYGP)
- Where
- Switzerland
- Volunteers
- 16 people
- Sponsor
- University of Lausanne
Maternal Vitamin D Status
Vitamin D Supplementation and Pregnancy Outcomes
Groups (group 1 receives 1000 IU vitamin D and group 2 receives 2000 IU vitamin D) through a random allocation. It is necessary to mention that all cases in each group could be able to receive the current supplementation during…
- Trial name
- NCT03308487
- Testing
- vitamin D3 (1000 IU), Vitamin D3 (2000 IU)
- Where
- Iran
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Tirang R. Neyestani, Ph.D.
Acute Respiratory Infections, Critical Illness in Children
Serum Vitamin D Status in Critically Ill Children With Acute Respiratory Infections
Acute respiratory infections (ARIs) are among the leading causes of hospitalization, morbidity, and mortality in children worldwide, particularly among critically ill patients admitted to pediatric intensive care units (PICUs).
- Conditions
- Acute Respiratory Infections, Critical Illness in Children, Vitamin D Deficiency, Pediatric Respiratory Infections
- Trial name
- VITD-ARI (NCT06547749)
- Testing
- Serum 25-Hydroxyvitamin D Assessment
- Where
- Egypt
- Volunteers
- 63 people
- Sponsor
- Assiut University
Folate Deficiency, Iodine Deficiency
Acceptability and Nutritional Impact of Double-fortified Salt Containing Iodine and Folic Acid - Phase 1
The overarching objective of this two-phase project is to assess the effects of fortifying iodized salt with folic acid on improving women's folate status and thereby reduce the risk of neural tube defects (NTDs), which are…
- Conditions
- Folate Deficiency, Iodine Deficiency, Anemia, Macrocytic, Anemia Deficiency
- Trial name
- DFS-IoFA-1 (NCT05792241)
- Where
- Ethiopia
- Volunteers
- 100 people
- Sponsor
- University of California, Davis
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