Large-scale testing (Phase 3)UnknownNCT00000152What this trial is testingRandomized Trial of Beta-Carotene and Macular DegenerationWho this might be right forMacular Degeneration National Eye Institute (NEI)
Not applicableStudy completedNCT00128752What this trial is testingThe CARO Study - Bioefficacy of Beta-Carotene in Oil and in a Mixed Diet in Healthy SubjectsWho this might be right forHealthy Radboud University Medical Center 24
Not applicableStudy completedNCT04593524What this trial is testingThe Role of Vitamin D, A, and Beta Carotene in Tuberculosis Patients With Vitamin D Receptor Gene PolymorphismWho this might be right forTuberculosis Universitas Sumatera Utara 48
Large-scale testing (Phase 3)Study completedNCT01002664What this trial is testingEfficacy and Safety of MCS-2 in the Treatment of Lower Urinary Tract SymptomsWho this might be right forLower Urinary Tract SymptomsBenign Prostatic Hyperplasia Health Ever Bio-Tech Co., Ltd. 272
Not applicableUnknownNCT05882084What this trial is testingOral Supplementation of Astaxanthin on Skin Photoaging, Hydration and ElasticityWho this might be right forPhotoaging Integrative Skin Science and Research 24
Not applicableNot Yet RecruitingNCT07457515What this trial is testingBreastmilk and the Link to Overweight/Obesity and Maternal Diet in the Mother-breastmilk-child TriadWho this might be right forBody WeightObesity & OverweightHuman Milk/Breastfeeding+11 more Warsaw University of Life Sciences 165
Not applicableStudy completedNCT06636396What this trial is testingFeasibility of Measuring Skin Carotenoid Level in an Asthma ClinicWho this might be right forAsthma University of Kansas Medical Center 29
Not applicableStudy completedNCT04744233What this trial is testingBioavailability of Carotenoids From Orange Juice in a Cross-over Study in Healthy Subjects.Who this might be right forBiological AvailabilityCarotenoidsLutein+1 more Instituto de Ciencia y Tecnología de Alimentos y Nutrición 12
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
Not applicableStudy completedNCT00680355What this trial is testingBioavailability of Golden Rice Carotenoids in HumansWho this might be right forHealthy Tufts University 14
Not applicableStudy completedNCT01511484What this trial is testingYou Are What You Eat: A Randomised Controlled Trial of an Appearance-based Dietary InterventionWho this might be right forFruit and Vegetable Consumption Perception Lab 73
Not applicableStudy completedNCT05802134What this trial is testingIncreased Access to Fruits and Vegetables for Hypertension in Immigrant Hispanic/Latinx IndividualsWho this might be right forCardiovascular Diseases St. Catherine University 21
Not applicableStudy completedNCT01403844What this trial is testingCarotenoid Response to the Intake of Vegetables and FruitsWho this might be right forResonance Raman Spectroscopy for Dietary Carotenoid Intake USDA Grand Forks Human Nutrition Research Center 29
Not applicableStudy completedNCT05840848What this trial is testingEffect of Iron and Zinc Supplementation on B-carotene Bioavailability in Healthy MalesWho this might be right forBioavailability University of Hohenheim 12
Very early researchStudy completedNCT06270680What this trial is testingCarotenoids for Collision AthletesWho this might be right forHead InjuryCarotenoids Penn State University 31
Not applicableEnded earlyNCT02069522What this trial is testingHealthy Term Infants Fed Milk-Based FormulasWho this might be right forInfants Abbott Nutrition 91
Not applicableStudy completedNCT03433092What this trial is testingSerum Carotenoids and Risk of Gastrointestinal Tract Cancer: Meta-analysis of Ten StudiesWho this might be right forGastrointestinal Tract Cancer Yong Zhou 40,641
Not applicableNot Yet RecruitingNCT07660315What this trial is testingGoji Berry and Vasomotor Symptoms Pilot StudyWho this might be right forVasomotor Symptoms University of California, Davis 6
Not applicableUnknownNCT02380144What this trial is testingBioavailability of Carotenoids and Flavonoids From Fresh Oranges and Orange Juice.Who this might be right forHealthy University of Hohenheim 12
Early research (Phase 1)Study completedNCT00121589What this trial is testingLutein/Zeaxanthin and Omega-3 Supplementation in Persons Over Age 60Who this might be right forMacular Degeneration National Eye Institute (NEI) 40