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Found 156 studies with search of: Cobalamin OR "Vitamin B12"
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1 Not yet recruiting Oral/Intramuscular B12 to Treat Cobalamin Deficiency
Condition: Vitamin B 12 Deficiency
Interventions: Drug: oral Cobalamin (vitamin B12);   Drug: intramuscular Cobalamin (vitamin B12)
2 Completed Cobalamin Status in Young Children With Developmental Delay
Condition: Vitamin B 12 Deficiency
Intervention: Dietary Supplement: Hydroxycobalamin (Vitamin B12 Depot, Nycomed Pharma)
3 Completed Cobalamin Status in Young Children With Gastrointestinal Symptoms or Feeding Problems
Condition: Vitamin B 12 Deficiency
Intervention: Dietary Supplement: Hydroxycobalamin (Vitamin B12 Depot, Nycomed Pharma)
4 Completed Folic Acid and Vitamin B12 in Young Indian Children
Conditions: Diarrhea;   Pneumonia
Interventions: Dietary Supplement: Folic Acid;   Dietary Supplement: Vitamin B12;   Dietary Supplement: Placebo;   Dietary Supplement: Folic acid and vitamin B12
5 Completed Plasma Holotranscobalamin as Compared to Plasma Cobalamins for Assessment of Vitamin B12 Absorption
Condition: Vitamin B12 Absorption
Intervention: Drug: Vitamin B12 (Cyanocobalamin)
6 Completed Characterization of Cyanocobalamin in Healthy Voluteers After Intranasal and Intramuscual Administration
Condition: Focus: Bioavailability
Interventions: Drug: Nascobal nasal spray (cyanocobalamin, USP);   Drug: Vitamin B12-ratiopharm N, injection solution
7 Completed WENBIT - Western Norway B Vitamin Intervention Trial
Conditions: Coronary Artery Disease;   Myocardial Infarction;   Cerebrovascular Stroke
Interventions: Drug: folic acid, vitamin B12 (cyanocobalamin), vitamin B6 (pyridoxine);   Drug: folic acid, vitamin B12 (cyanocobalamin);   Drug: vitamin B6 (pyridoxine);   Drug: placebo
8 Active, not recruiting Comparison of Vitamin B12 Supplementation to Selective Serotonin Reuptake Inhibitor (SSRI) Versus SSRI Antidepressant Treatment Alone
Condition: Major Depressive Disorder
Intervention: Dietary Supplement: Vitamin B12
9 Completed
Has Results 		Evaluation of Holotranscobalamin as an Indicator of Vitamin B12 Absorption
Condition: Disorder of Vitamin B12
Intervention: Dietary Supplement: Vitamin B12
10 Unknown † Examining B12 Deficiency Associated With C677T Mutation on MTHFR Gene in Terms of Commonness and Endothelial Function
Condition: B12 Deficiency Combined With C677T Mutation on MTHFR Gene
Interventions: Dietary Supplement: B12 Vitamin;   Dietary Supplement: Vitamin B12 + Folic Acid
11 Active, not recruiting Randomized Trial of Vitamin B12 in Pregnant Indian Women
Condition: Pregnancy
Interventions: Dietary Supplement: Vitamin B12;   Other: Placebo
12 Completed Efficacy and Safety Study of Oral Eligen® B12 in Subjects With Low Serum Cobalamin
Condition: Vitamin B 12 Deficiency
Intervention: Other: Vitamin B12 (cyanocobalamin)
13 Completed The Absorption of Vitamin B12 Among Healthy Pregnant Women
Condition: Pregnancy
Intervention: Dietary Supplement: B12 vitamin (Cyanocobalamin)
14 Completed Oral Vitamin B12 Supplementation and Cognitive Performance in Elderly People
Conditions: Cognitive Decline;   Cognitive Symptoms
Interventions: Behavioral: vitamin B12 supplementation;   Behavioral: vitamin B12 + folic acid combined supplementation
15 Completed Oral Cyanocobalamin (Eligen B12) Bioavailability Study
Condition: Healthy
Intervention: Drug: Cyanocobalamin
16 Completed Cobalamin Supplementation During Infancy; Effect on B-Vitamin Status, Growth and Psychomotor Development
Condition: Vitamin B 12 Deficiency
Intervention: Drug: Hydroxycobalamin (Vitamin B12 Depot, Nycomed Pharma)
17 Completed Oral Vitamin B12 Administration for Vitamin B12 Deficiency After Total Gastrectomy
Condition: Vitamin B12 Deficiency
Intervention: Drug: mecobalamin
18 Not yet recruiting Influence of Different Doses of the Vitamin B12 on Recurrent Aphthous Stomatitis
Condition: Recurrent Aphthous Stomatitis
Intervention: Drug: vitamin B12 treatment
19 Completed Myo-inositol Versus D-chiro-inositol in the Treatment of Polycystic Ovary Syndrome and Insulin Resistance: Evaluation of Clinical, Metabolic, Endocrine and Ultrasound Parameters
Condition: PCOS
Interventions: Dietary Supplement: Myo-inositol + Folic acid;   Dietary Supplement: D-chiro-inositol, manganese, folic acid, vit B12;   Drug: Folic acid, vit B12
20 Unknown † How Many Patients Are in Need of Vitamin B12 Injections?
Condition: Vitamin B12 Deficiency
Intervention: Drug: vitamin B12

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† Indicates status has not been verified in more than two years
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