Not applicableUnknownNCT04342078What this trial is testingVitamin D and Health Outcomes in Preterm Born PopulationWho this might be right forVitamin D3 DeficiencyPrematurityLung Diseases+3 more University of Oulu 87
Not applicableUnknownNCT03783104What this trial is testingMaternal B12 Supplementation to Improve Infant B12 Deficiency and NeurodevelopmentWho this might be right forChild Developmental DelayChild MalnutritionMaternal Exposure+1 more University College, London 720
Not applicableUnknownNCT02828228What this trial is testingVitamin D Supplementation in Vitamin D Deficient Obese Children During Weight-loss ProgramWho this might be right forObesity University Clinical Centre, Gdansk 200
Testing effectiveness (Phase 2)Study completedNCT01838447What this trial is testingPrevention of Vitamin D Deficiency Following Pediatric CHD Surgery: a Phase II Dose Evaluation Randomized Controlled Trial Comparing Usual Care With a High Dose Pre-operative Supplementation Regimen Based on the Institute of Medicine Daily Upper Tolerable Intake LevelWho this might be right forVitamin D DeficiencyThoracic SurgeryPediatric Disorders+1 more Children's Hospital of Eastern Ontario 46
Post-approval studies (Phase 4)Study completedNCT05276960What this trial is testingEfficacy of Intensive Cholecalciferol Monitoring and Supplementation on Serum vitD Levels in Pediatric Patients With CFWho this might be right forVitamin D DeficiencyCystic FibrosisBone Density, Low+3 more Hospital Infantil de Mexico Federico Gomez 40
Large-scale testing (Phase 3)Study completedNCT01695148What this trial is testingEfficacy of β-carotene Biofortified Maize in Reducing Vitamin A Deficiency Among ChildrenWho this might be right forVitamin A DeficiencyLow Serum Retinol Johns Hopkins Bloomberg School of Public Health 1,228
Very early researchStudy completedNCT01199445What this trial is testingEfficacy of Vitamin A in Fortified Extruded Rice in School ChildrenWho this might be right forVitamin A Deficiency Swiss Federal Institute of Technology 50
Not applicableStudy completedNCT02363985What this trial is testingUsing Stable Isotope Techniques to Monitor and Assess the Vitamin A Status of Children Susceptible to InfectionWho this might be right forVitamin A Deficiency Ethiopian Public Health Institute 138
Not applicableStudy completedNCT05141968What this trial is testingVitamin D Supplementation and Glycemic Control Improvement Among Type 1 Diabetic ChildrenWho this might be right forType 1 Diabetes MellitusVitamin D Deficiency Al-Azhar University 80
Not applicableStudy completedNCT07292753What this trial is testingVitamin D Versus Desmopressin Versus Combination Therapy in Children With Primary Monosymptomatic Nocturnal Enuresis and Vitamin D DeficiencyWho this might be right forNocturnal EnuresisVitamin D Deficiency Ain Shams University 90
Not applicableStudy completedNCT04632771What this trial is testingNutritional Status and Bouillon Use in Northern GhanaWho this might be right forIron DeficiencyVitamin A DeficiencyVitamin B 12 Deficiency+4 more University of California, Davis 995
Early research (Phase 1)Study completedNCT00732758What this trial is testingDefining Vitamin D Insufficiency in School Age Children: A Randomized Placebo Controlled Trial of Vitamin D3Who this might be right forHealthy University of Pittsburgh 157
Post-approval studies (Phase 4)Study completedNCT01766310What this trial is testingEffect of Folic Acid Supplementation on Plasma Homocysteine Level in Obese ChildrenWho this might be right forHyperhomocysteinemiaObesity Queen Sirikit National Institute of Child Health 50
Large-scale testing (Phase 3)Study completedNCT00412087What this trial is testingVitamin D Status of Pregnant Women and Their Children in Eau Claire, South CarolinaWho this might be right forVitamin D DeficiencyPregnancy Medical University of South Carolina 564
Not applicableStudy completedNCT02825758What this trial is testingEvaluation of ZestiVits in Children and Adults on a Ketogenic or Restricted Therapeutic DietWho this might be right forDeficiency of Micronutrients Vitaflo International, Ltd 15
Not applicableStudy completedNCT06391437What this trial is testingPrevalence Of Vitamin A Deficiency In Critically Ill Children With Sepsis And Its Association With Clinical OutcomesWho this might be right forVitamin A Deficiency in Children Benha University 220
Not applicableStudy completedNCT00374023What this trial is testingA Study on Immunological Effect of Vitamin A and Zinc in a Placebo Controlled 4 Cell TrialWho this might be right forImmunityDiarrheaRespiratory Tract Infections International Centre for Diarrhoeal Disease Research, Bangladesh 147
Not applicableLooking for participantsNCT07183579What this trial is testingEffective Dosing of Burosumab in XLHWho this might be right forX-linked Hypophosphatemia (XLH) University of Nottingham 120
Not applicableStudy completedNCT02996513What this trial is testingAssessing Model Parameters for Applying the Retinol Isotope Dilution (RID) MethodWho this might be right forVitamin A DeficiencyMalariaInflammation Wageningen University 60
Not applicableStudy completedNCT01559766What this trial is testingDietary Vitamin A Requirement in Chinese Children and the New Technology of Dietary AssessmentWho this might be right forVitamin A Deficiency Huazhong University of Science and Technology 403