Not applicableStudy completedNCT04820465What this trial is testingAnemia in Older AdultsWho this might be right forAnemiaNutritional DeficiencyInflammation Instituto Nacional de Salud Publica, Mexico 829
Not applicableStudy completedNCT05098600What this trial is testingThe Epidemiology, Management and Comorbidities in Alopecia Areata in Czech RepublicWho this might be right forAlopecia AreataAlopecia TotalisAlopecia Universalis+24 more Faculty Hospital Kralovske Vinohrady 123
Large-scale testing (Phase 3)Not Yet RecruitingNCT06966856What this trial is testingThis Randomized, Clinical Trial Evaluates the Efficacy of Oral Versus Sublingual Vitamin B12 Supplementation in Correcting Early-onset Vitamin B12 Deficiency in Adult Patients Using Proton Pump Inhibitors (PPIs). The Primary Outcome is the Change in Serum Vitamin B12 Levels Over a 6-weekWho this might be right forHypovitaminosis b 12 Tanta University 23
Not applicableActive Not RecruitingNCT06528366What this trial is testingHeart Failure With Reduced Ejection Fraction: Adjuvant Therapy With Neurostimulation and Chlorella Pyrenoidosa (HD-tDCS)Who this might be right forHeart Failure, Reduced Ejection FractionVitamin B12 Deficiency Federal University of Paraíba 28
Not applicableNot Yet RecruitingNCT07111767What this trial is testingEffectiveness of a Modified Cost-Effective Dietary Plan in Promoting Weight Loss and Preservation of Lean Body Mass in Patients After Bariatric SurgeryWho this might be right forObesityBariatric SurgeryNutritional Status+1 more Khyber Teaching Hospital 122
Not applicableUnknownNCT05238181What this trial is testingPyloric or Pseudopyloric Metaplasia of the Corpus Mucosa in Autoimmune GastritisWho this might be right forAutoimmune DiseasesHelicobacter Pylori GastritisAnemia, Pernicious+2 more National Cheng-Kung University Hospital 300
Not applicableStudy completedNCT05315843What this trial is testingCobalamin Supply and Metabolism in Healthy Children From Birth to the Age of 12 Months and in Their Mothers (Cbl_Neo)Who this might be right forVitamin B 12 Deficiency University Children's Hospital, Zurich 160
Not applicableStudy completedNCT03365583What this trial is testingThe Impact of Vitamin B12 Deficiency on Infant Gut MicrobiotaWho this might be right forVitamin B 12 Deficiency Marmara University 90
Not applicableStudy completedNCT03542591What this trial is testingSupplementation of Critical Nutrients in a Plant-based DietWho this might be right forDeficiency, VitaminVegan's Anemia (Vitamin B12 Deficiency)Deficiencies Micronutrient Charite University, Berlin, Germany 500
Testing effectiveness (Phase 2)Study completedNCT00699478What this trial is testingOral Vitamin B12 Administration for Vitamin B12 Deficiency After Total GastrectomyWho this might be right forVitamin B12 Deficiency Yonsei University 30
Not applicableStudy completedNCT01476007What this trial is testingOral/Intramuscular B12 to Treat Cobalamin DeficiencyWho this might be right forVitamin B 12 Deficiency Gerencia de Atención Primaria, Madrid 284
Not applicableStudy completedNCT04083560What this trial is testingA Comparison of Two Different Doses of Maternal B12 Supplementation in Improving Infant B12 Deficiency and NeurodevelopmentWho this might be right forVitamin B 12 Deficiency Sitaram Bhartia Institute of Science and Research 708
Not applicableStudy completedNCT02679833What this trial is testingEffect of Toothpaste Fortified With Cyanocobalamin on Vitamin B12 StatusWho this might be right forCobalamin Deficiency Universität des Saarlandes 180
Large-scale testing (Phase 3)Active Not RecruitingNCT03071666What this trial is testingVitamin B12 Supplementation During Pregnancy on Cognitive DevelopmentWho this might be right forPregnancy RelatedVitamin B 12 DeficiencyAnemia Centre For International Health 800
Not applicableStudy completedNCT04239521What this trial is testingThe Epidemiology, Management, and the Associated Burden of Related Conditions in Alopecia AreataWho this might be right forAlopecia AreataDepressive EpisodeRecurrent Depressive Disorder+33 more Momentum Data 51,955
Not applicableStudy completedNCT03444155What this trial is testingNatural Versus Synthetic Vitamin B Complexes in HumanWho this might be right forHealthyThiamine and Niacin Deficiency StatesPyridoxine Deficiency+6 more Medical University of Graz 30
Not applicableStudy completedNCT06904612What this trial is testingUsing Iodized Salt to Improve Serum Folate, B12 and Iron LevelsWho this might be right forNeural Tube DefectsFolic Acid DeficiencySpina Bifida+4 more Hydrocephalus and Neuroscience Institute 200
Not applicableStudy completedNCT05517005What this trial is testingAn Exploratory Investigation of a B12 Vitamin to Increase Energy and FocusWho this might be right forB12 Deficiency VitaminEnergy Supply; DeficiencyMood Sourse 38
Post-approval studies (Phase 4)Study completedNCT03372447What this trial is testingMegadose of Hydroxocobalamin for the Treatment of Pernicious AnemiaWho this might be right forMegaloblastic Anemia NosPernicious Anemia Hospital Universitario Dr. Jose E. Gonzalez 13
Not applicableStudy completedNCT01297361What this trial is testingThe Association Between Religious Origin and Age, and Vitamin B12 and Folic Acid Plasma Levels in Non Jewish Population in Western GalileeWho this might be right forVitamin B12 DeficiencyFolic Acid Deficiency Meir Medical Center 90