Clinical trials: Vitamin B 12 Deficiency
Obesity, Morbid, Homocystine; Metabolic Disorder
Homocysteine After Laparoscopic Roux-enY Gastric Bypass
Changes in homocysteine values after bariatric surgery remain controversially discussed. This is the first comprehensive summary to depict timeline changes in homocysteine levels following laparoscopic roux-en-Y gastric bypass.
- Conditions
- Obesity, Morbid, Homocystine; Metabolic Disorder, Bariatric Surgery Candidate, Folate Deficiency
- Trial name
- NCT03489538
- Testing
- laparoscopic long limb roux-en-Y gastric bypass
- Where
- Austria
- Volunteers
- 708 people
- Sponsor
- Medical University of Vienna
Vitamin B12 Deficiency
Can Recombinant Human Intrinsic Factor Be Used for Evaluation of the Vitamin B12 Absorption?
Vitamin B12 is an essential nutrient for normal DNA-synthesis and must be supplied by animal products. Vitamin B12 deficiency may cause anemia and irreverible neurological damage.
- Trial name
- NCT00279552
- Testing
- Recombinant human intrinsic factor
- Where
- Denmark
- Volunteers
- 37 people
- Sponsor
- University of Aarhus
Pregnancy
Néevo®/NéevoDHA® P.L.U.S. Program (Progress Through Learning, Understand & Support)
This is an observational study in which patients who have been prescribed Néevo®/NéevoDHA® are invited to participate in surveys about their pregnancy and experiences with Néevo®/NéevoDHA®.
- Trial name
- NCT01358552
- Testing
- Néevo®/ NéevoDHA®
- Where
- United States
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- Pamlab, Inc.
Megaloblastic Anemia Nos, Pernicious Anemia
Megadose of Hydroxocobalamin for the Treatment of Pernicious Anemia
Demonstrate the effectiveness of a single dose of a multivitamin complex for the treatment of megaloblastic anemia
- Trial name
- NCT03372447
- Testing
- Hydroxocobalamin 10,000mcg, Thiamin 100mg, Pyridoxine 50mg
- Where
- Mexico
- Volunteers
- 13 people
- Sponsor
- Hospital Universitario Dr. Jose E. Gonzalez
Vitamin B12 Deficiency
Relative Bioavailability of Folic Acid and L-5-Methlytetrahydrofolate
Folic acid, a form of the vitamin folate, is added to grain products in Canada to help reduce birth defects. Folic acid is the synthetic form of folate and is very stable (doesn't break down) when added to foods.
- Trial name
- NCT01584050
- Testing
- L-5-methyltetrahydrofolate (Metafolin ®), folic acid
- Where
- 2 sites in Canada, Malaysia
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Vitamin B 12 Deficiency
Cobalamin Status in Young Children With Gastrointestinal Symptoms or Feeding Problems
During fetal life and infancy, an adequate cobalamin status is important for normal growth and central nervous system development.
- Trial name
- NCT00710359
- Testing
- Hydroxycobalamin (Vitamin B12 Depot, Nycomed Pharma)
- Where
- Norway
- Volunteers
- 100 people
- Sponsor
- Haukeland University Hospital
Vitamin D Deficiency, B12 Deficiency Vitamin
Relationship Between Vitamin D and Vitamin B12 Levels and Neuropathic Pain in Lipedema
Lipedema is a disease characterized by bilateral abnormal fat deposition in the upper and lower extremities. Pain is a common symptom in lipedema.Vitamin D plays an important role in chronic pain.
- Conditions
- Vitamin D Deficiency, B12 Deficiency Vitamin, Lipedema
- Trial name
- NCT06338059
- Testing
- Vitamin B12 Level
- Where
- Turkey (Türkiye)
- Volunteers
- 200 people
- Sponsor
- Fatih Sultan Mehmet Training and Research Hospital
Deficiency Vitamins
Micronutrient Status During Pregnancy
An adequate micronutrient status during fetal life and infancy is important for optimal development. Dietary practices during pregnancy, lactation and infancy vary among populations and there is today no clear agreement on what…
- Trial name
- NCT03272022
- Volunteers
- 272 people
- Sponsor
- Haukeland University Hospital
Development, Vitamin Deficiency
Vitamin B12, Neurodevelopment and Growth in Nepal
Rationale: Globally, vitamin B12 deficiency is one of the most common micronutrient deficiencies. The only relevant source of Vitamin B12 is animal-source foods.
- Conditions
- Development, Vitamin Deficiency, Malnutrition
- Trial name
- BeLive (NCT02272842)
- Testing
- Vitamin B12
- Where
- Nepal
- Volunteers
- 600 people
- Sponsor
- Centre For International Health
Weight Gain, Anemia, Iron Deficiency
Egg Intervention During Pregnancy in Indonesia
The study consists of two arms: 1) intervention group using eggs as supplementary food given from 2nd trimester of pregnancy to birth, and 2) observational group of pregnant mothers.
- Conditions
- Weight Gain, Anemia, Iron Deficiency, Birth Weight, Birth Length
- Trial name
- PRECODE (NCT04694235)
- Testing
- Egg intervention
- Where
- Indonesia
- Volunteers
- 702 people, healthy volunteers welcome
- Sponsor
- SEAMEO Regional Centre for Food and Nutrition
Mild Cognitive Impairment, Dementia
COMPARATIVE EFFECTIVENESS OF MCI and DEMENTIA TREATMENTS IN A COMMUNITY-BASED DEMENTIA PRACTICE
This retrospective study is a more extensive, confirmatory analysis of the cognitive and functional outcomes initially seen in 2 groups of MCI/dementia patients in Springfield, MA and compares specialized dementia care and a…
- Conditions
- Mild Cognitive Impairment, Dementia, Hypoxia, Hyperhomocysteinemia
- Trial name
- NCT02860338
- Volunteers
- 900 people
- Sponsor
- Clionsky Neuro Systems Inc.
Vitamin B-12 Deficiency, Achlorhydria
Cobalamin Absorption From Fortified Food
To determine B12 bioavailability from 14C-B12 fortified bread in healthy subjects and in subjects with proton pump inhibitor induced achlorhydria.
- Trial name
- FL-72 (NCT01399164)
- Testing
- 14C-B12 fortified bread
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research Center
Vitamin B12 Deficiency
Oral Vitamin B12 Administration for Vitamin B12 Deficiency After Total Gastrectomy
Pernicious anemia develops in 50% of total gastrectomized due to gastric cancer patients. Lack of intrinsic factor, which is secreted by parietal cell from stomach wall causes deficiency of cobalamin, which, in final, causes…
- Trial name
- NCT00699478
- Testing
- mecobalamin
- Where
- South Korea
- Volunteers
- 30 people
- Sponsor
- Yonsei University
Anemia in Pregnancy, Preeclampsia
A Retrospective Analysis of Neevo®/Neevo®DHA 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 Neevo®DHA (with higher folate and B12) versus standard prenatal vitamins on hemoglobin (Hgb) levels in pregnant women throughout the…
- Trial name
- NCT01062958
- Testing
- Neevo® (a medical food), Prenatal vitamins (≤1mg folic acid, 27 - 35mg iron, and ≤12mcg vitamin B12)
- Where
- 3 sites in United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Pamlab, Inc.
Iron Deficiency Anemia, B12 Deficiency Anemia
Do Iron And Vitamin B12 Injections Given Together, Improve Hemoglobin In Patients On Hemodialysis?
A parallel group, quadruple blind, placebo-controlled, randomized control trial with 2x2 factorial design to determine the effect of simultaneous IV ferric carboxymaltose and IM hydroxycobalamin supplementation in anemic Indian…
- Trial name
- ALOHA (NCT04627181)
- Testing
- Ferric carboxymaltose, Hydroxycobalamin
- Where
- India
- Volunteers
- 100 people
- Sponsor
- Christian Medical College, Vellore, India
Vitamin B 12 Deficiency
Assessing the Efficacy of Different Carrier Systems in Oral Vitamin B12 Supplementation
Vitamin B12, a vital nutrient, plays a crucial role in red blood cell formation, neurological function, and DNA synthesis. Deficiency in B12 can lead to anemia, neurological symptoms such as tingling or numbness, and cognitive…
- Trial name
- NCT06376591
- Testing
- Vit B12
- Where
- Pakistan
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Liaquat University of Medical & Health Sciences
Mild Cognitive Impairment
A Retrospective Analysis of Cerefolin NAC® in Cognitively Impaired Patients
This retrospective analysis of de-identified data from 700 charts of consecutive patients from this patient population is to investigate the prevalence of hyperhomocysteinemia and associated metabolic abnormalities in this…
- Trial name
- NCT01594541
- Where
- United States
- Volunteers
- 700 people
- Sponsor
- Pamlab, Inc.
Nitrous Oxide Abuse, Subacute Combined Cord Degeneration
Neurological Recovery Following NOS-SACD
Nitrous oxide has become an increasingly popular recreational drug amongst young people, particularly at festivals, nightclubs and parties.
- Conditions
- Nitrous Oxide Abuse, Subacute Combined Cord Degeneration, Neurologic Symptoms, Paresthesia
- Trial name
- NCT05714917
- Testing
- Observational study with no interventions
- Where
- 3 sites in United Kingdom
- Volunteers
- 100 people
- Sponsor
- Nottingham University Hospitals NHS Trust
Nutritional Status, Nutrient Deficiency
Adults Nutrition as a Protective or Health-risk Factor
To obtain up-to-date data on nutrient intakes in adults, a national dietary survey - the EU Menu study will be conducted during 12 consecutive months in 2017/2018, providing data on the consumption of foods and enabling the…
- Conditions
- Nutritional Status, Nutrient Deficiency, Micronutrient Deficiency, Vitamin D Deficiency
- Trial name
- NUTRIHEALTH (NCT03284840)
- Testing
- Assessement of nutritional status, Thyroid size
- Where
- 3 sites in Slovenia
- Volunteers
- 280 people, healthy volunteers welcome
- Sponsor
- Institute of Nutrition, Slovenia (Nutris)
Autoimmune Diseases, Helicobacter Pylori Gastritis
Pyloric or Pseudopyloric Metaplasia of the Corpus Mucosa in Autoimmune Gastritis
The study is aimed to investigate the different rates of pyloric/ pseudopyloric metaplasia or spasmolytic polypeptide-expressing metaplasia (SPEM) of corpus between autoimmune gastritis and H. pylori-infected non-ulcer dyspepsia.
- Conditions
- Autoimmune Diseases, Helicobacter Pylori Gastritis, Anemia, Pernicious, Metaplasia
- Trial name
- PM_in_AIG (NCT05238181)
- Testing
- Assess pyloric or pseudopyloric metaplasia of corpus by H&E stains, Assess pyloric or pseudopyloric metaplasia of corpus by TFF2 immunohistochemistry stains, The assessment of corpus-predominant gastritis index (CGI), Operative Link for Gastritis Assessment (OLGA), and Operative Link on Gastric Intestinal Metaplasia assessment (OLGIM)
- Where
- Taiwan
- Volunteers
- 300 people
- Sponsor
- National Cheng-Kung University Hospital