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ClinicalTrials.gov public records Last synced Oct 22, 2026, 2:38 PM EDT

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Showing 1–24 of 167 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: vitamin B12 Clear all
Completed Phase 4 Interventional Results available

Metformin for Overweight & OBese ChILdren and Adolescents With BDS Treated With SGAs

NCT02515773
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Metformin, healthy lifestyle intervention (LIFE)
Drug · Behavioral
Lead sponsor
Melissa Delbello
Other
Eligibility
8 Years to 19 Years
Enrollment
1,565 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2023
U.S. locations
29
States / cities
Covington, Kentucky • Neptune City, New Jersey • Amityville, New York + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2025 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 1 Interventional

Nutrition, Neuromuscular Electrical Stimulation (NMES) and Secondary Progressive Multiple Sclerosis (SPMS)

NCT01381354
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Progressive exercise, Neuromuscular electrical stimulation delivered using the electrical therapy device EMPI 300 PV, Modified paleolithic diet, Omega 3 fatty acids, Full Spectrum vitamin, Essential - hydroxytyrosol, Maltodextrin fiber supplement, Mineral boost (magnesium), Niacinamide, Methyl B12, Taurine, creatine, thiamine, riboflavin, N acetylcysteine, alpha lipoic acid, L acetyl carnitine, methyl folate, coenzyme Q, meditation, self massage, learning, Coconut oil
Other · Device · Dietary Supplement + 1 more
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 26, 2018 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study on Hydroxocobalamin Given to Healthy Individual to Monitor Symptoms

NCT07469189
View directory record Official record
Conditions
Hydroxocobalamin Adverse Reaction
Interventions
Hydroxocobalamin
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 22, 2026, 2:38 PM EDT
Active, not recruiting Not applicable Interventional

Nutritional Intervention for Endometriosis

NCT05175248
View directory record Official record
Conditions
Endometriosis
Interventions
Plant-based Intervention Group
Behavioral
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 22, 2026, 2:38 PM EDT
Terminated Phase 2 Interventional

KEAPSAKE: A Study of Telaglenastat (CB-839) With Standard-of-Care Chemoimmunotherapy in 1L KEAP1/NRF2-Mutated, Nonsquamous NSCLC

NCT04265534
View directory record Official record
Conditions
Non-Small Cell Lung Cancer, Non-squamous Non-small-cell Lung Cancer, Non-Squamous Non-Small Cell Neoplasm of Lung, KEAP1 Gene Mutation, NRF2 Gene Mutation, NFE2L2 Gene Mutation
Interventions
Telaglenastat, Carboplatin Chemotherapy, Pemetrexed Chemotherapy, Pembrolizumab Immunotherapy, Placebo, Folic acid 400 -1000 μg, Vitamin B12 1000 μg, Dexamethasone 4 mg
Drug · Biological · Dietary Supplement
Lead sponsor
Calithera Biosciences, Inc
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
102
States / cities
Birmingham, Alabama • Mobile, Alabama • Yuma, Arizona + 86 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2022 · Synced Oct 22, 2026, 2:38 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Sirolimus and Pemetrexed to Treat Non-Small Cell Lung Cancer

NCT00923273
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
FDG-PET, Pemetrexed, Sirolimus, Vitamin B12, Folic acid tablets, Dexamethasone tablets
Drug · Dietary Supplement
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 26, 2019 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Not applicable Interventional Results available

Vitamin B12 and Folate Administration on Homocysteine Concentrations After Nitrous Oxide Anesthesia

NCT00901394
View directory record Official record
Conditions
Cardiovascular Abnormalities
Interventions
B12-Folic Acid, nitrous oxide, Nitrous oxide (NO) and placebo, Placebo, oxygen nitrogen
Drug · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 16, 2020 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study of mRNA-based Influenza and SARS-CoV-2 (COVID-19) Multi-component Vaccines in Healthy Adults

NCT05827926
View directory record Official record
Conditions
SARS-CoV-2, Influenza
Interventions
Influenza Vaccine 1, mRNA-1083.1, mRNA-1083.2, mRNA-1083.3, Investigational Influenza Vaccine 1, Investigational COVID-19 Vaccine 1, COVID-19 Vaccine 1, Investigational Influenza Vaccine 2, Influenza Vaccine 2, mRNA-1083, Investigational COVID-19 Vaccine 2, COVID-19 Vaccine 2
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 79 Years
Enrollment
1,758 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
69
States / cities
Chandler, Arizona • Colton, California • Huntington Beach, California + 59 more
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 3 Interventional

Vitamin Therapy for Prevention of Stroke

NCT00004734
View directory record Official record
Conditions
Stroke, Cerebral Infarction, Myocardial Infarction
Interventions
pyridoxine, cyanocobalamin, folic acid multivitamin
Drug
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
35 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2004
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 22, 2026, 2:38 PM EDT
Not listed Not applicable Interventional

B Vitamin Supplementation to Chiropractic Management of Chronic LBP: Pilot Clinical Trial (VCLBP)

NCT06576739
View directory record Official record
Conditions
Recurrent Low Back Pain
Interventions
Spinal Manipulation
Procedure
Lead sponsor
University of Western States
Other
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 29, 2024 · Synced Oct 22, 2026, 2:38 PM EDT
Recruiting Phase 1Phase 2 Interventional

Durvalumab in Different Combinations With Pralatrexate, Romidepsin and Oral 5-Azacitidine for Lymphoma

NCT03161223
View directory record Official record
Conditions
Lymphoma, T-Cell
Interventions
Durvalumab, Pralatrexate, Romidepsin, 5-Azacitidine
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 31, 2022 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 2 Interventional Results available

Study of Pralatrexate to Treat Advanced or Metastatic Relapsed Transitional Cell Carcinoma of the Urinary Bladder

NCT00722553
View directory record Official record
Conditions
Carcinoma, Transitional Cell, Bladder Cancer, Bladder Neoplasm
Interventions
Pralatrexate Injection, Vitamin B12, Folic Acid
Drug · Dietary Supplement
Lead sponsor
Acrotech Biopharma Inc.
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
4
States / cities
Tucson, Arizona • Atlanta, Georgia • Rochester, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Oct 22, 2026, 2:38 PM EDT
Recruiting Not applicable Interventional

A Dietary Study for People With Clonal Hematopoiesis

NCT07590804
View directory record Official record
Conditions
Clonal Hematopoiesis
Interventions
high-fiber plant-based meals, fermented foods, supplements, surveys
Other · Dietary Supplement
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated May 15, 2026 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Not applicable Interventional Results available

VITATOPS: A Study of VITAmins TO Prevent Stroke

NCT00097669
View directory record Official record
Conditions
Stroke, Transient Ischemic Attack
Interventions
Active VITATOPS Tablet (folic acid 2mg, B6 25mg , B12 500ug) or placebo, Placebo
Drug · Other
Lead sponsor
VITATOPS
Government
Eligibility
Not listed
Enrollment
8,164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2009
U.S. locations
4
States / cities
New York, New York • Abington, Pennsylvania • Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 25, 2020 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 2 Interventional Results available

Study of Pralatrexate With Vitamin B12 and Folic Acid in Patients With Relapsed or Refractory Peripheral T-cell Lymphoma

NCT00364923
View directory record Official record
Conditions
Peripheral T-cell Lymphoma
Interventions
Pralatrexate Injection
Drug
Lead sponsor
Acrotech Biopharma Inc.
Industry
Eligibility
18 Years and older
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
18
States / cities
Duarte, California • Los Angeles, California • New Haven, Connecticut + 13 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2019 · Synced Oct 22, 2026, 2:38 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessment of Vitamin B12 Bioavailability From Egg

NCT01366937
View directory record Official record
Conditions
Bioavailability of Vitamin B12 From Chicken Eggs
Interventions
Not listed
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Aug 4, 2011 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Not applicable Interventional

Treating Oxidative Stress and the Metabolic Pathology of Autism

NCT00572741
View directory record Official record
Conditions
Autistic Disorder
Interventions
B12, Placebo, folate, B complex, vitamin C, cod liver oil, Mineral complex, carnitine
Dietary Supplement
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
3 Years to 7 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated May 5, 2016 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

A Study Evaluating Quality of Life Parameters Following Use of Emergen-C

NCT06654089
View directory record Official record
Conditions
Dietary Supplements
Interventions
Emergen-C Core Super Orange Powder, Placebo
Dietary Supplement
Lead sponsor
HALEON
Industry
Eligibility
18 Years to 64 Years
Enrollment
299 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 2 Interventional Results available

Pemetrexed and Gemcitabine in Patients With Advanced Non-Small Cell Lung Cancer

NCT00193414
View directory record Official record
Conditions
Lung Cancer
Interventions
Pemetrexed, Gemcitabine
Drug
Lead sponsor
SCRI Development Innovations, LLC
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 3, 2022 · Synced Oct 22, 2026, 2:38 PM EDT
Withdrawn Phase 2 Interventional

Hemodynamic Effects of Methylene Blue vs Hydroxocobalamin in Patients at Risk of Vasoplegia During Cardiac Surgery

NCT03446599
View directory record Official record
Conditions
Vasoplegia, Hypotension, Coronary Artery Disease, Cardiac Valve Disease
Interventions
Hydroxocobalamin, Methylene Blue, Normal saline
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Mar 2, 2020 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 1 Interventional

Pemetrexed for the Treatment of Chordoma

NCT03955042
View directory record Official record
Conditions
Chordoma
Interventions
Pemetrexed
Drug
Lead sponsor
Saint John's Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Mar 7, 2023 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Transdermal Iontophoresis of Vitamin B12 Under Three Different Skin Preparations

NCT04027959
View directory record Official record
Conditions
Macrocytic Anemia With Vitamin B12 Deficiency
Interventions
Vitamin B12
Dietary Supplement
Lead sponsor
James J. Peters Veterans Affairs Medical Center
Federal
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Dec 14, 2020 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Single Group Study to Evaluate the Effects of a Multivitamin on a Range of Health and Wellbeing Outcomes.

NCT06568146
View directory record Official record
Conditions
Health and Wellbeing
Interventions
Multivitamin Supplement
Dietary Supplement
Lead sponsor
Love Wellness
Industry
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Oct 29, 2024 · Synced Oct 22, 2026, 2:38 PM EDT
Completed Phase 1 Interventional

Open Label Study: Treatment of ALS Fatigue With PolyMVA

NCT04557410
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
PolyMVA
Drug
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
Not listed
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated May 27, 2021 · Synced Oct 22, 2026, 2:38 PM EDT