Clinical trials: Vitamin B 12 Deficiency
Vitamin B 12 Deficiency
Dried Purple Laver (Nori) as a Food Source of Vitamin B12 in Vegetarians
This is an intervention study aiming to understand the bioavailability of vitamin B12 from nori for vegetarians.
- Trial name
- NCT05614960
- Testing
- Dried purple laver (Nori)
- Where
- Taiwan
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Fu Jen Catholic University
Diabetes Mellitus, Type 2, Vitamin B 12 Deficiency
The Vitamin B Status in Type 2 Diabetes (VITA) Study
The objective of this study was to evaluate vitamin B deficiency (particularly vitamin B6 deficiency) in diabetic patients in Germany in relation to the presence or absence of proteinuria, and global vascular risk.
- Conditions
- Diabetes Mellitus, Type 2, Vitamin B 12 Deficiency, Vitamin B 6 Deficiency
- Trial name
- VITA (NCT03447275)
- Testing
- Type 2 diabetes
- Volunteers
- 174 people, healthy volunteers welcome
- Sponsor
- Rima Obeid
Vitamin B 12 Deficiency, Type 2 Diabetes Mellitus (T2DM)
Oral Sucrosomial® Vitamin B12 in the Management of B12 Deficiency Among Metformin-Treated Type 2 Diabetes Patients
This randomized, double-blind, placebo-controlled clinical trial aims to evaluate the effectiveness of Sucrosomial® Vitamin B12 supplementation in the management of vitamin B12 deficiency among metformin-treated Type 2 Diabetes…
- Trial name
- NCT06983223
- Testing
- Sucrosomial® Vitamin B12
- Where
- Pakistan
- Volunteers
- 50 people
- Sponsor
- Liaquat University of Medical & Health Sciences
Folate Deficiency, Iodine Deficiency
Acceptability and Nutritional Impact of Double-fortified Salt Containing Iodine and Folic Acid
The overarching objective of this two-phase project is to assess the effects of fortifying iodized salt with folic acid on improving women's folate status.
- Conditions
- Folate Deficiency, Iodine Deficiency, Anemia Macrocytic, Anemia Deficiency
- Trial name
- DFS-IoFA-2 (NCT06223854)
- Testing
- Iodized salt, Experimental: Iodized salt with lower-dose folic acid fortification, Experimental: Iodized salt with higher-dose folic acid fortification
- Where
- Ethiopia
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Vitamin B12 Deficiency
Supplementary Vitamin B12 Effects on Elevated Homocysteine Levels of Vegetarians - Clinical Trial
Vegetarians are known to be deficient in vitamin B12, due to a lack or absence of dietary animal produce, which can elevate homocysteine.
- Trial name
- NCT01661309
- Testing
- Inactive lozenge, Methylcobalamin
- Where
- United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of West London
Avitaminosis, Delirium, Dementia, Amnestic, Cognitive Disorders
Interaction of Cobalamin Status With Nitrous Oxide in Relation to Postoperative Cognitive Changes in the Elderly
Low cobalamin (vitamin B12) levels are frequent in the elderly. Most often they reflect a mild metabolic abnormality without clinical symptoms (subclinical cobalamin deficiency).
- Trial name
- NCT00212147
- Testing
- General anesthesia with nitrous oxide, General anesthesia without nitrous oxide
- Where
- 2 sites in United States
- Volunteers
- 444 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Alopecia Areata, Depressive Episode
The Epidemiology, Management, and the Associated Burden of Related Conditions in Alopecia Areata
This study series consists of four related studies and aims to explore and describe many important elements of alopecia areata over three key areas: (1) the current epidemiology of alopecia areata, (2) the prevalence and…
- Conditions
- Alopecia Areata, Depressive Episode, Recurrent Depressive Disorder, Anxiety Disorders
- Trial name
- NCT04239521
- Testing
- Exposure of interest (studies 2 & 3).
- Where
- United Kingdom
- Volunteers
- 51,955 people
- Sponsor
- Momentum Data
COVID, Zinc Deficiency
Evaluation of the Relationship Between Zinc Vitamin D and b12 Levels in the Covid-19 Positive Pregnant Women
Zinc d vitamin and b12 serum levels in covid-19 positive pregnants will be compared in terms of patients' responses to computed tomography and treatment.
- Conditions
- COVID, Zinc Deficiency, Vitamin D Deficiency
- Trial name
- NCT04407572
- Testing
- Serum zinc, vitamin d vitamin b12 levels .
- Where
- Turkey (Türkiye)
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Kanuni Sultan Suleyman Training and Research Hospital
Obesity, Bariatric Surgery
Effectiveness of a Modified Cost-Effective Dietary Plan in Promoting Weight Loss and Preservation of Lean Body Mass in Patients After Bariatric Surgery
This study will see if a low-cost dietary plan, based on the standard dietary guidelines of the American Society for Metabolic and Bariatric Surgery (ASMBS) and using locally available foods, can help patients lose weight and…
- Conditions
- Obesity, Bariatric Surgery, Nutritional Status, Body Composition
- Trial name
- NCT07111767
- Testing
- Low-Cost Post-Bariatric Diet, Standard High-cost Post-Bariatric Diet
- Where
- Pakistan
- Volunteers
- 122 people
- Sponsor
- Khyber Teaching Hospital
Anemia in Pregnancy, Pre-eclampsia
A Retrospective Analysis of Neevo® and NeevoDHA® Compared to a Standard Prenatal Vitamin in Anemia During Pregnancy
This study is a multi-site, retrospective chart review to determine the effect of Neevo® or NeevoDHA® (with higher folate and B12) versus standard prenatal vitamins on hemoglobin (Hgb) levels in pregnant women throughout the…
- Trial name
- NCT01193192
- Testing
- Neevo®, Prenatal vitamins
- Where
- 3 sites in United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Pamlab, L.L.C.
Vitamin B 12 Deficiency
Cobalamin Supplementation During Infancy; Effect on B-vitamin Status, Growth and Psychomotor Development
Adequate levels of vitamin B12 (cobalamin) is necessary for normal growth and development in infants. We have earlier investigated cobalamin status in healthy children and we observed metabolic evidence of impaired cobalamin…
- Trial name
- NCT00479479
- Testing
- Hydroxycobalamin (Vitamin B12 Depot, Nycomed Pharma)
- Where
- Norway
- Volunteers
- 107 people, healthy volunteers welcome
- Sponsor
- Haukeland University Hospital
Macrocytic Anemia With Vitamin B12 Deficiency
Transdermal Iontophoresis of Vitamin B12 Under Three Different Skin Preparations
STUDY DESIGN: Phase I Clinical Trial The researchers set out to assess the effectiveness of transdermal iontophoretic administration of Vitamin B12 (V.B12) under three different skin preparatory conditions. SETTING: James J.
- Trial name
- NCT04027959
- Testing
- Vitamin B12
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- James J. Peters Veterans Affairs Medical Center
Vitamin B 12 Deficiency
Vitamin B12 Dose Escalation Trial in Pregnancy
Vitamin B12 is a cofactor for 2 enzymes that have essential functions in pregnancy, both for maternal health and for fetal development.
- Trial name
- MM4MN-B12 (NCT05426395)
- Testing
- Vitamin B12 2.6 µg, Vitamin B12 10 µg, Vitamin B12 50 µg
- Where
- Tanzania
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- George Washington University
Cobalamin Deficiency
Effect of Toothpaste Fortified With Cyanocobalamin on Vitamin B12 Status
A 3 months randomized, placebo-controlled study on the effect of toothpaste fortified with vitamin B12 on vitamin B12 status markers and related metabolic markers.
- Trial name
- NCT02679833
- Testing
- Cyanocobalamin
- Where
- 2 sites in Germany
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Universität des Saarlandes
Vitamin B 12 Deficiency
Oral/Intramuscular B12 to Treat Cobalamin Deficiency
Objective: To determine the effectiveness of oral versus intramuscular Cobalamin (vitamin B12) by restore cobalamin parameter in blood at 8, 26 and 52 weeks in ≥ 65 aged patients with Cobalamin Deficiency.
- Trial name
- OB12 (NCT01476007)
- Testing
- oral Cobalamin (vitamin B12), intramuscular Cobalamin (vitamin B12)
- Where
- Spain
- Volunteers
- 284 people
- Sponsor
- Gerencia de Atención Primaria, Madrid
IVF, Body Weight
Nutritional Status of Women Undergoing in Vitro Fertilization
Infertility affects around 15 % of couples in their reproductive years. Even though the use of assisted reproductive technologies (ART) in aforementioned couples is increasing, their success rate is still relatively low.
- Conditions
- IVF, Body Weight, Nutrient Deficiency, Dietary Vitamin B12 Deficiency Anemia
- Trial name
- NCT05865015
- Where
- 2 sites in Slovenia
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- University Medical Centre Ljubljana
Vitamin B12 Deficiency
Impact of Vitamin B12 Replacement on Epogen Dosing and Improvement of Quality of Life in Hemodialysis Patients
Vitamin B12 has several important functions in the body, two of which are production of red blood cells and the maintenance of a healthy nervous system. When vitamin B12 is deficient, abnormal red blood cells form.
- Trial name
- NCT01876732
- Testing
- Vitamin B12
- Where
- United States
- Volunteers
- 132 people
- Sponsor
- Northwell Health
Anemia, Iron-deficiency
Preoperative Anaemia prevaLence In surgiCal patiEnts
Preoperative anaemia is common in surgery, with a prevalence between 10 and 50 %, and is an independent risk factor for morbidity and mortality.
- Conditions
- Anemia, Iron-deficiency, Folic Acid Deficiency, Vitamin B 12 Deficiency
- Trial name
- ALICE (NCT03978260)
- Where
- Germany
- Volunteers
- 2,500 people
- Sponsor
- Johann Wolfgang Goethe University Hospital
Vitamin B12 Nutritional Deficiency
Effect of Methylcobalamin and Cyanocobalamin Consumption on Vitamin B12 Nutritional Status
Vitamin B12 (B12, Cobalamin) is an essential micronutrient that humans are not capable of synthesizing and therefore must be ingested through food. In nature, B12 is basically only present in foods of animal origin.
- Trial name
- NORMB12 (NCT05785585)
- Testing
- Methylcobalamin, Cyanocobalamin group, Control group
- Where
- 2 sites in Spain
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Fundació Eurecat
Iron Deficiency, Vitamin A Deficiency
Nutritional Status and Bouillon Use in Northern Ghana
This pilot aims to generate data that are critical for informing the design of a planned, more detailed study to evaluate the effect of multiple micronutrient (MN)-fortified bouillon cube on biomarkers of nutrient status of women…
- Conditions
- Iron Deficiency, Vitamin A Deficiency, Vitamin B 12 Deficiency, Folate Deficiency
- Trial name
- NCT04632771
- Testing
- N/A (observational study)
- Where
- Ghana
- Volunteers
- 995 people, healthy volunteers welcome
- Sponsor
- University of California, Davis