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ClinicalTrials.gov public records Last synced Oct 24, 2026, 5:03 AM EDT

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Showing 1–24 of 180 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: B12 Clear all
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 24, 2026, 5:03 AM EDT
Completed Early Phase 1 Interventional

A Feasibility Trial of OCM Supplements for the Treatment of NAFLD

NCT05720702
View directory record Official record
Conditions
NAFLD
Interventions
homocysteine (Hcy) lowering supplements
Dietary Supplement
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 27, 2024 · Synced Oct 24, 2026, 5:03 AM 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 24, 2026, 5:03 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Metformin Use and Vitamin B12 Deficiency

NCT01136512
View directory record Official record
Conditions
Vitamin B12 Deficiency, Type 2 Diabetes Mellitus
Interventions
Not listed
Lead sponsor
Northwell Health
Other
Eligibility
20 Years to 80 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Staten Island, New York
Source: ClinicalTrials.gov public record
Updated Jul 31, 2013 · Synced Oct 24, 2026, 5:03 AM 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 24, 2026, 5:03 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Open-Label Safety and Tolerability Study of INCB057643 in Subjects With Advanced Malignancies

NCT02711137
View directory record Official record
Conditions
Solid Tumors
Interventions
INCB057643, Gemcitabine, Paclitaxel, Rucaparib, Abiraterone, Ruxolitinib, Azacitidine
Drug
Lead sponsor
Incyte Corporation
Industry
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
16
States / cities
Birmingham, Alabama • La Jolla, California • Denver, Colorado + 12 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced Oct 24, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cobalamin Absorption From Fortified Food

NCT01399164
View directory record Official record
Conditions
Vitamin B-12 Deficiency, Achlorhydria
Interventions
14C-B12 fortified bread
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
60 Years and older
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 22, 2013 · Synced Oct 24, 2026, 5:03 AM EDT
Terminated Not applicable Interventional

Role of Blood Management in Perioperative Outcomes

NCT04475497
View directory record Official record
Conditions
Abnormal Uterine Bleeding
Interventions
Blood management, Usual care
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 5, 2024 · Synced Oct 24, 2026, 5:03 AM EDT
Completed Not applicable Interventional

A Nutritional Intervention for Diabetic Neuropathy

NCT01690962
View directory record Official record
Conditions
Diabetic Neuropathy
Interventions
Vegan diet and vitamin B12 supplement, Vitamin B12 supplement
Other · Dietary Supplement
Lead sponsor
Physicians Committee for Responsible Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 4, 2014 · Synced Oct 24, 2026, 5:03 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Evaluation of Topical B12 for the Treatment of Childhood Atopic Dermatitis

NCT00465699
View directory record Official record
Conditions
Eczema
Interventions
Topical B12 0.07%
Drug
Lead sponsor
Spartanburg Regional Healthcare System
Other
Eligibility
6 Months to 18 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Spartanburg, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 25, 2007 · Synced Oct 24, 2026, 5:03 AM EDT
Completed Phase 3 Interventional

Prevention of Recurrent Aphthous Stomatitis Using Vitamins

NCT00527306
View directory record Official record
Conditions
Aphthous Stomatitis
Interventions
multivitamin
Dietary Supplement
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 27, 2020 · Synced Oct 24, 2026, 5:03 AM EDT
Withdrawn Early Phase 1 Interventional

Pilot Study of Pembrolizumab Combined With Pemetrexed or Abemaciclib for High Grade Glioma

NCT04220892
View directory record Official record
Conditions
High Grade Glioma
Interventions
Pembrolizumab, Pemetrexed, Abemaciclib
Drug
Lead sponsor
Jose Carrillo
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2020 · Synced Oct 24, 2026, 5:03 AM EDT
Not listed No phase listed Observational

A Retrospective Analysis of Cerefolin NAC® in Cognitively Impaired Patients

NCT01594541
View directory record Official record
Conditions
Mild Cognitive Impairment
Interventions
Not listed
Lead sponsor
Pamlab, Inc.
Industry
Eligibility
55 Years to 89 Years
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 24, 2014 · Synced Oct 24, 2026, 5:03 AM EDT
Completed Phase 3 Interventional

Alimta® Versus Its Combination With Carboplatin in Advanced Non-small-cell Lung Cancer in Patients Performance Status 2

NCT01836575
View directory record Official record
Conditions
Non Small Cell Lung Carcinoma
Interventions
Pemetrexed, Carboplatin
Drug
Lead sponsor
Instituto Nacional de Cancer, Brazil
Government
Eligibility
18 Years and older
Enrollment
228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Miami Beach, Florida
Source: ClinicalTrials.gov public record
Updated Apr 22, 2013 · Synced Oct 24, 2026, 5:03 AM EDT
Recruiting Phase 2 Interventional

Pembrolizumab and Pemetrexed for Progressive Chordoma

NCT06794645
View directory record Official record
Conditions
Chordomas, Chordoma
Interventions
Pembrolizumab, Pemetrexed Phase 2
Drug
Lead sponsor
Saint John's Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Oct 24, 2026, 5:03 AM 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 24, 2026, 5:03 AM EDT
Completed Not applicable Interventional Results available

Impact of Vitamin B12 Replacement on Epogen Dosing and Improvement of Quality of Life in Hemodialysis Patients

NCT01876732
View directory record Official record
Conditions
Vitamin B12 Deficiency
Interventions
Vitamin B12
Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 90 Years
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Staten Island, New York
Source: ClinicalTrials.gov public record
Updated Sep 8, 2014 · Synced Oct 24, 2026, 5:03 AM EDT
Withdrawn No phase listed Observational

Hydroxycobalamin and Rural Emergency Medical Services Cyanide Exposure Patients: A Cost Analysis

NCT01656616
View directory record Official record
Conditions
Cyanide Poisoning
Interventions
Cyanide antidote administration
Drug
Lead sponsor
MaineHealth
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Portland, Maine
Source: ClinicalTrials.gov public record
Updated May 18, 2017 · Synced Oct 24, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Trial to Assess the Effects of a Vitamin Shot on Energy Levels

NCT06019858
View directory record Official record
Conditions
Energy, Fatigue, Mood, Weight Loss, Cognition
Interventions
Vitamin Energy Shot
Other
Lead sponsor
Vitamin Energy®
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 31, 2023 · Synced Oct 24, 2026, 5:03 AM 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 24, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of a Multi-vitamin Supplement in Adult Females

NCT03828097
View directory record Official record
Conditions
Health, Subjective
Interventions
Experimental supplement, Placebo
Dietary Supplement
Lead sponsor
Auburn University
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Auburn, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 28, 2020 · Synced Oct 24, 2026, 5:03 AM EDT
Completed Phase 1 Interventional Results available

A Phase 1 Study in Patients With Solid Tumors

NCT01215916
View directory record Official record
Conditions
Solid Tumors
Interventions
LY573636, Pemetrexed
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 15, 2019 · Synced Oct 24, 2026, 5:03 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Autoantibodies to Gastric Parietal Cells in Rheumatoid Arthritis Patients

NCT01876329
View directory record Official record
Conditions
Vitamin B12 Deficiency
Interventions
Not listed
Lead sponsor
Keesler Air Force Base Medical Center
Federal
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Keesler Air Force Base, Mississippi
Source: ClinicalTrials.gov public record
Updated May 29, 2015 · Synced Oct 24, 2026, 5:03 AM 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 24, 2026, 5:03 AM EDT