Clinical trials: Vitamin/Nutritional Deficiency
Malaria, Malnutrition
Evaluation of Vitamin A and Zinc Supplementation on Malarial Morbidity
The purpose of this study was to determine whether young children receiving Vitamin A and Zinc supplements will have a lower incidence of symptomatic malaria than similar children receiving vitamin A supplements alone.
- Trial name
- NCT01782001
- Testing
- vitamin A, vitamin A and zinc
- Where
- Ghana
- Volunteers
- 200 people
- Sponsor
- Kintampo Health Research Centre, Ghana
Diabetes Mellitus, Non-Insulin Dependent, Non-Insulin Dependent
Study of the Effects of Vitamin C on Patients With Type 2 Diabetes
Diabetes is a disease characterized by decreased sensitivity to the action on insulin to promote sugar (glucose) use and blood vessel relaxation (vasodilation) in muscle.
- Trial name
- NCT00001870
- Testing
- Acetylcholine
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- National Center for Complementary and Integrative Health (NCCIH)
Undernutrition
Nutributter Programming to Prevent Undernutrition: an Evaluation
This randomized, controlled effectiveness study examines Nutributter programming within an integrated package of maternal and child health services offered by Haiti's Ministry of Health (MSPP) to prevent undernutrition among…
- Trial name
- NPPU (NCT01552512)
- Testing
- Nutributter Program, Integrated Package
- Where
- Haiti
- Volunteers
- 1,228 people
- Sponsor
- Washington University School of Medicine
Heart Diseases
Effect of Thiamin Supplementation on Thiamin Status in Children With Heart Disease Receiving Diuretic Drugs
The purpose of this study is to determine effect of thiamin supplementation on thiamin status by measuring thiamin pyrophosphate effect in children with heart disease receiving diuretic drugs.
- Trial name
- NCT03989700
- Testing
- Thiamine Mononitrate
- Where
- Thailand
- Volunteers
- 60 people
- Sponsor
- Mahidol University
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 D Deficiency, Tuberculosis
Role of Vitamin D in Innate Immunity to Tuberculosis
The investigators proposed a pilot study preparatory to developing a randomized trial of vitamin D for the prevention of TB infection. The specific aims are presented below: 1.
- Trial name
- NCT01244204
- Testing
- Vitamin D
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Harvard School of Public Health (HSPH)
Vitamin D Deficiency
Vitamin D Status and Its Influencing Factors in Zhejiang Province: A Multicenter Cross-Sectional Study
Vitamin D deficiency is a global public health problem, with an estimated 1 billion people affected worldwide, and large-scale systematic data for Zhejiang Province remain scarce.
- Trial name
- NCT07866391
- Where
- 2 sites in China
- Volunteers
- 10,000 people, healthy volunteers welcome
- Sponsor
- First Affiliated Hospital of Zhejiang University
Metabolic Syndrome X
Study of Chronic Degenerative Diseases
The prevalence of obesity and type 2 diabetes mellitus (DM) in children have been increasing in parallel at an alarming rate. In particular, the increasing prevalence of type 2 DM is attributable to genetic factors, clinical…
- Trial name
- NCT02495961
- Where
- Mexico
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Asociación Científica Latina A.C.
Hypocalcemia, Hypovitaminosis D
Calcium and Vitamin D Intakes in Children
Calcium (Ca2+) and vitamin D (VitD) play an important role in child health. Aims. The investigators evaluated the daily intake of Ca2+ and VitD in healthy children; and the efficacy of Ca2+ and VitD supplementation.
- Trial name
- NCT01638494
- Testing
- Colecalcium supplement
- Volunteers
- 184 people
- Sponsor
- Federico II University
Vitamin A Deficiency
Effect of Vitamin A Supplementation on Immune Responses in Human Neonates
Vitamin A supplementation (VAS) significantly reduces all-cause mortality when given after 6 months of age, but has a null or detrimental effect when given between 1-5 months.
- Trial name
- NNVAS (NCT01476358)
- Testing
- Vitamin A (retinyl palmitate).
- Where
- The Gambia
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Asthma, Vitamin D Deficiency
Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations.
The role of vitamin D in respiratory health remains uncertain. Whether vitamin D reduces clinically important exacerbations of childhood asthma remains uncertain.
- Trial name
- NCT01395589
- Testing
- Vitamin D
- Where
- Qatar
- Volunteers
- 597 people, healthy volunteers welcome
- Sponsor
- Hamad Medical Corporation
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/Nutritional Deficiency, Neurobehavioral Manifestations
Walnuts, Long-Chain Polyunsaturated Fatty Acids and Adolescent Brain Development
Background: Adolescence is an important period for brain development as a result of increased synaptic plasticity. Omega-3 polyunsaturated fatty acids (n-3 PUFAs) are essential nutrients for brain development and protection…
- Trial name
- WALNUTs (NCT02590848)
- Testing
- Walnut intake
- Where
- Spain
- Volunteers
- 730 people, healthy volunteers welcome
- Sponsor
- Barcelona Institute for Global Health
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
X-linked Hypophosphatemia (XLH)
Effective Dosing of Burosumab in XLH
X-linked hypophosphataemia (XLH) is a rare, hereditary condition. The genetic defect leads to low blood phosphate levels and vitamin D suppression. Phosphate is required for strong bones and teeth and to store energy in cells.
- Trial name
- NCT07183579
- Where
- United Kingdom
- Volunteers
- 120 people
- Sponsor
- University of Nottingham
Obesity, Vitamin D Deficiency
Effect of Exercise on Vitamin d in Obese
The aim of the current study was to investigate the effect of exercise-induced lipolysis on vitamin D status in obese children. Two types of exercises that have different effects on lipolysis were used.
- Trial name
- NCT05066490
- Testing
- Endurance exercise, Resistance exersises.
- Where
- Saudi Arabia
- Volunteers
- 30 people
- Sponsor
- Taif University
Pneumonia, Vitamin D Deficiency
Kabul Vitamin D Supplementation Trial
Background: Pneumonia is the leading cause of childhood mortality, accounting for 19% of the 10.6 million deaths that occur each year1.
- Trial name
- NCT00548379
- Testing
- vitamin D
- Where
- 2 sites in Afghanistan
- Volunteers
- 3,048 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Type 2 Diabetes
Relationship Between Insulin Resistance and Vitamin D in Type 2 Diabetes Mellitus (DM)
The primary aim of the study is to evaluate the association between vitamin D levels and triglyceride-glucose index as a marker of insulin resistance in patients with type 2 DM.
- Trial name
- DM (NCT07467161)
- Volunteers
- 165 people
- Sponsor
- Assiut University
Vitamin A Deficiency, Vitamin A Toxicity
Liver and Bone Retinol Levels in Guatemalan Adolescents and Adults
Guatemala has enforced mandatory fortification of sugar with vitamin A (VA) since June 1974 and has led to a highly successful reduction in VA deficiency and associated disease. However, Ribaya-Mercado et al.
- Conditions
- Vitamin A Deficiency, Vitamin A Toxicity, Hypervitaminosis A
- Trial name
- GVAS (NCT04438200)
- Where
- 5 sites in Guatemala, United Kingdom
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Newcastle University
Liver Transplant; Complications, Vitamin D Deficiency
Relationship Between Serum Vitamin D and Outcomes of Liver Transplantation in Cirrhotic Patients Undergoing Liver Transplantation and Effects of Vitamin D Supplementation in Post-transplant Period
The study population is patients with liver cirrhosis undergoing liver transplantation; In this study, the sample will be selected from cirrhosis patients undergoing liver transplantation in Taleghani (Tehran), Imam Khomeini…
- Trial name
- NCT05568836
- Testing
- vitamin D supplementation, control
- Volunteers
- 42 people
- Sponsor
- National Nutrition and Food Technology Institute