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- US Clinical Trials Registry
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Search clinical trials for: vitamin A supplements
Total 38709 results
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Norwegian University of Science and TechnologyCompleted
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Medical University of ViennaCompletedPolycystic Ovary Syndrome | Infertility, Female | Micronutrient DeficiencyAustria
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National Center for Complementary and Integrative...Completed
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Royal Marsden NHS Foundation TrustMerck KGaA, Darmstadt, GermanyActive, not recruitingGastric Adenocarcinoma | Oesophageal AdenocarcinomaUnited Kingdom
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Centre For International HealthSykehuset Innlandet HF; Tribhuvan University Teaching Hospital, Institute Of... and other collaboratorsActive, not recruitingAnemia | Pregnancy Related | Vitamin B 12 DeficiencyNepal
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Sun Yat-sen UniversityRecruiting
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Dongliang Zhang, MDBeijing Municipal Science & Technology CommissionCompletedVitamin D DeficiencyChina
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Hacettepe UniversityCompletedSerum HbA1c and Vitamin D, Vitamin B12 Values in Periodontal DiseasesTurkey
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Fundación Pública Andaluza para la gestión de la...CompletedHematopoietic Stem Cell TransplantationSpain
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Huilian ZhuNot yet recruiting
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Sanliurfa Mehmet Akif Inan Education and Research...Sisli Hamidiye Etfal Training and Research HospitalCompletedASC-US | Human Papilloma Virus
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Northwell HealthStaten Island University HospitalCompletedVitamin B12 DeficiencyUnited States
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Intermountain Health Care, Inc.USANA Health SciencesCompletedOsteoarthritis, Knee | Vitamin D Supplementation
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National Taiwan University HospitalNot yet recruitingPostpartum Depression | Heart Rate Variability
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University of AarhusCompleted
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Ruhr University of BochumCompleted
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Maíra F PessoaUnknown
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Brigham and Women's HospitalNational Heart, Lung, and Blood Institute (NHLBI)Active, not recruiting
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University of GuadalajaraInstituto Mexicano del Seguro SocialCompletedDiabetes Mellitus Type 2 | Non-proliferative Diabetic RetinopathyMexico
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Wenhu LiuBeijing Municipal Science & Technology CommissionUnknownVitamin D Deficiency | MalnutritionChina
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National Center for Complementary and Integrative...Completed
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University of WashingtonNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK); Brigham...CompletedDiabetesUnited States
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University of GeorgiaEmory University; University of Florida; Cornell UniversityCompleted
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Lo.Li.Pharma s.r.lCompleted
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Wuhan General Hospital of Guangzhou Military CommandCompletedCoronary Artery Disease | Type 2 Diabetes | Left Ventricular MassChina
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University of British ColumbiaMarch of Dimes; British Columbia Childrens Hospital FoundationWithdrawnPyridoxine Dependant EpilepsyUnited States, United Kingdom, Canada, Switzerland, Germany, Netherlands
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NovaMed Pharmaceuticals Inc.Unknown
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Cyprus University of TechnologyAmerican Medical CenterCompletedPalmar-Plantar ErythrodysesthesiaCyprus
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Emory UniversityNational Institutes of Health (NIH)TerminatedParkinson's DiseaseUnited States
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Glaukos CorporationCompletedProgressive KeratoconusUnited States
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Université de SherbrookeLotte & John Hecht Memorial FoundationCompletedCOVID-19 | Vitamin C | Hospitalized PatientsCanada
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Rambam Health Care CampusUnknown
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Chang Gung Memorial HospitalCompleted
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National Institute of Allergy and Infectious Diseases...Completed
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Hospital General de MexicaliSandoval Briones Jocelin Lisset; Hirata Medina Nancy Midory; Felix Escobedo Marisol and other collaboratorsRecruitingIschemic Stroke | Hemorrhagic Stroke | Cerebrovascular Event | Vitamin b12Mexico
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University of HelsinkiNot yet recruiting
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Sykehuset Innlandet HFUniversity of Oslo; University of Bergen; Inland Norway University of Applied...Recruiting
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Bangabandhu Sheikh Mujib Medical University, Dhaka...Unknown
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Chinese University of Hong KongCompleted
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Hospices Civils de LyonCompletedDeficiency, Vitamin CFrance
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University of Colorado, DenverCancer League of ColoradoCompleted
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Oregon Health and Science UniversityCollins Medical TrustCompletedChronic Inflammatory Demyelinating Polyneuropathy | CIDPUnited States
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University of MessinaCompleted
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Maria LugerCompletedBariatric Surgery CandidateAustria
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Attikon HospitalCompletedAtrial FibrillationGreece
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Meir Medical CenterTerminatedRecurrent Aphthous StomatitisIsrael
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Jonsson Comprehensive Cancer CenterNational Cancer Institute (NCI)Completed
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University of North Carolina, Chapel HillNational Center for Complementary and Integrative Health (NCCIH)Completed
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Superior UniversityActive, not recruitingMenopausal | Pain, Low BackPakistan