Vitamin A Deficiency: all 67 studies

Page 1 of 1. Open to participants first (7), then studies with results posted, then the rest; newest registration first within each.

• Vitamin A Supplementation and Breast Milk Vitamin A Levels in Mothers of Preterm InfantsNot yet recruitingNCT07736768Not applicable
• Effect of Vitamin A Supplementation on Idiopathic ScoliosisRecruitingNCT07335991Not applicable
• OPI-NXYDLD-303 Safety and Efficacy of Phentolamine Ophthalmic Solution in Keratorefractive Surgery Participants With Decreased Mesopic Visual AcuityRecruitingNCT07140783Phase 3
• Investigating Brain Function in People With and Without Visual Snow Syndrome Using Adaptation to Visual StimuliRecruitingNCT06961864Not applicable
• Validation and Simplification of the Retinol Isotope Dilution Technique in Burkinabe SchoolchildrenRecruitingNCT06759493
• Vitamin A Supplementation in Allogeneic Stem Cell Transplantation.RecruitingNCT06450925Phase 2
• Stem Cell Ophthalmology Treatment Study IIRecruitingNCT03011541Not applicable
• Safety and Efficacy of 0.75% Phentolamine Ophthalmic Solution in Subjects With Post-refractive Surgery Visual DisturbancesCompletedNCT06349759Phase 3Results posted
• Impact of Maternal Vitamin A or Beta-Carotene Supplementation on Maternal and Infant Mortality in BangladeshCompletedNCT00198822Phase 3Results posted
• Effect of Consuming Vitamin A-fortified Sugar on Serum Retinol Levels in ChildrenCompletedNCT07860060Not applicable
• Knowledge of Students About Vitamin A and Assessment of Eye Manifestations in Quranic Schools (Khalwai) Khartoum State, Sudan 2022CompletedNCT06989879
• Prevalence Of Vitamin A Deficiency In Critically Ill Children With Sepsis And Its Association With Clinical OutcomesCompletedNCT06391437
• Impact of Food-to-Food Fortified Cereal Products on Diet Quality in Rural Niger VillagesCompletedNCT05893901
• Impact of Food-to-Food Fortified Cereal Products on Diet Quality in Eldoret, KenyaCompletedNCT05882682
• Senegal Market Study for Food-to-Food Fortified (F2F) Instant Porridge FloursCompletedNCT05872061
• Vitamin A Status in Patients With Vocal Fold LeukoplakiaActive, not recruitingNCT05323292
• Effect of Household Use of Multiple Micronutrient-fortified Bouillon on Micronutrient Status Among Women and Children in Two Districts in the Northern Region of GhanaCompletedNCT05178407Not applicable
• Anemia in Older AdultsCompletedNCT04820465
• Retinol Status in Preterm Infants and MothersCompletedNCT04780958Not applicable
• Egg Intervention During Pregnancy in IndonesiaActive, not recruitingNCT04694235Not applicable
• Nutritional Status and Bouillon Use in Northern GhanaCompletedNCT04632771
• Liver and Bone Retinol Levels in Guatemalan Adolescents and AdultsStatus unknownNCT04438200
• Comparison of Different Refraction Measurements in AdultsCompletedNCT04434521
• Bioefficacy of Beta-cryptoxanthin From Biofortified MaizeStatus unknownNCT04153968Not applicable
• Iron and Vitamin A in School ChildrenCompletedNCT04137354Not applicable
• Efficacy and Safety of Vitamin A Treatment for Children With SepsisStatus unknownNCT04127968Not applicable
• Estimating Average Vitamin A Requirements in Indonesian and American WomenCompletedNCT04123210Not applicable
• The Correlation Between Vitamin A / E Levels and PreeclampsiaStatus unknownNCT03971604Not applicable
• Effects of Fat-soluble Vitamins Supplementation on Common Complications and Neural Development in Very Low Birth Weight InfantsStatus unknownNCT03876704Phase 3
• Individualized Dietary Intervention in Breastfeeding Women: Body Weight and Vitamin A StoresCompletedNCT03640104Not applicable
• Nutritional Outcomes After Vitamin A Supplementation in Subjects With SCDCompletedNCT03632876Not applicable
• Using Stable Isotopes to Assess the Effectiveness of Vitamin A Supplementation in CameroonCompletedNCT03383744Not applicable
• Sub Regional Micronutrient Survey in EthiopiaStatus unknownNCT03353662
• Vitamin A Liver Reserves and Serum Markers of Vitamin A in US Adults at Time of DeathCompletedNCT03305042
• The Effects of Biscuits Containing Red Palm Oil on School Children With Vitamin A Deficiency in West and East MalaysiaCompletedNCT03256123Not applicable
• Assessing Model Parameters for Applying the Retinol Isotope Dilution (RID) MethodCompletedNCT02996513Not applicable
• Newly Formulated, Extruded Fortified-blended Foods for Food Aid: the MFFAPP Tanzania Efficacy StudyCompletedNCT02847962Not applicable
• Efficacy of Biofortified Maize to Improve Maternal and Infant Vitamin A StatusCompletedNCT02804490Phase 3
• Effects of EED on Zn Absorption and Retention in Children From a Standard DoseCompletedNCT02760095
• Vitamin A Equivalence of the Provitamin A in Biofortified BananasCompletedNCT02702622Not applicable
• Effect Of Multiple Biofortified Food Crops On Micronutrient Status And Immune Function Among Indian Infants and Their MothersActive, not recruitingNCT02648893Not applicable
• The Efficacy of Pro-vitamin A Biofortified Cassava on Vitamin A Status in Nigerian Preschool ChildrenCompletedNCT02627222Not applicable
• Using Stable Isotope Techniques to Monitor and Assess the Vitamin A Status of Children Susceptible to InfectionCompletedNCT02363985Not applicable
• Effect of SNPs in the BCMO1 EnzymeCompletedNCT02276014Not applicable
• Beta-carotene Absorption and Bioconversion to Vitamin A From Biofortified Cassava GariCompletedNCT02210507Not applicable
• Stopping Postpartum Vitamin A Supplementation: Missing Concealed BenefitCompletedNCT02043223Phase 2/3
• Vitamin A, Stool Microbiota and Vaccine Response in Bangladeshi InfantsCompletedNCT02027610
• Effect of Daily Consumption of Orange Maize on Breast Milk Retinol in Lactating Zambian WomenCompletedNCT01922713Not applicable
• Efficacy of β-carotene Biofortified Maize in Reducing Vitamin A Deficiency Among ChildrenCompletedNCT01695148Phase 3
• Efficacy of Yellow Cassava to Improve Vitamin A Status of Kenyan School ChildrenCompletedNCT01614483Not applicable
• Efficacy of Newborn Vitamin A Supplementation in Improving Immune FunctionCompletedNCT01583972Not applicable
• Dietary Vitamin A Requirement in Chinese Children and the New Technology of Dietary AssessmentCompletedNCT01559766
• Nutributter Programming to Prevent Undernutrition: an EvaluationCompletedNCT01552512Not applicable
• Effect of Vitamin A Supplementation on Immune Responses in Human NeonatesStatus unknownNCT01476358Phase 2
• Vitamin A Bioavailability in Lactating Women With Marginal Vitamin A StatusCompletedNCT01420406Not applicable
• Vitamin A Absorption From Cassava in WomenCompletedNCT01381276Phase 2
• Efficacy of Vitamin A in Fortified Extruded Rice in School ChildrenCompletedNCT01199445Early Phase 1
• An Efficacy Trial of Iron, Zinc and Vitamin A Fortified Rice in Children in Satun, ThailandCompletedNCT01061307Early Phase 1
• Impact of Maternal Supplementation With Dual Megadose of Vitamin ACompletedNCT00742937Phase 2/3
• Vitamin A Equivalence of Plant Carotenoids in ChildrenCompletedNCT00680212Phase 2
• Newborn Vitamin A (VA) Supplementation Pilot Project, PakistanCompletedNCT00674089Not applicable
• Impact of Consumption of Orange-fleshed Sweet Potatoes on the Vitamin A Status of Bangladeshi Women of Reproductive AgeCompletedNCT00453648Not applicable
• Trial of the Impact of Vitamin A on Maternal MortalityCompletedNCT00211341Phase 3
• Single-dose Postpartum Vitamin A Supplementation of Mothers and NeonatesCompletedNCT00198718Phase 2
• Community Trial of Newborn Vitamin A Supplementation to Reduce Infant Mortality in Rural BangladeshCompletedNCT00128557Phase 3
• Retinol Equivalence of Plant Carotenoids in ChildrenCompletedNCT00082420
• Vitamin A to Reduce HIV in Vaginal Secretions and Prevent Viral TransmissionCompletedNCT00053612Phase 2

← Vitamin A Deficiency overview