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ClinicalTrials.gov public records Last synced Oct 5, 2026, 2:53 PM EDT

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Showing 73–96 of 167 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: vitamin B12 Clear all
Completed Phase 2 Interventional Results available

Study of Pralatrexate vs. Erlotinib for Non-Small Cell Lung Cancer After at Least 1 Prior Platinum-based Treatment

NCT00606502
View directory record Official record
Conditions
Non-small Cell Lung Cancer
Interventions
Pralatrexate, Erlotinib, Vitamin B12, Folic Acid
Drug · Dietary Supplement
Lead sponsor
Spectrum Pharmaceuticals, Inc
Industry
Eligibility
18 Years and older
Enrollment
201 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
15
States / cities
Bakersfield, California • San Diego, California • Port Saint Lucie, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2021 · Synced Oct 5, 2026, 2:53 PM EDT
Completed Not applicable Interventional

Remotely Delivered Behavioral Weight Loss Using an Ad Libitum Plant-Based Diet Versus a Balanced Calorie Deficit Diet

NCT05337150
View directory record Official record
Conditions
Obesity, Overweight
Interventions
Lifestyle Modification Intervention, Balanced Calorie Deficit Eating Plan, Ad Libitum Whole Food Plant-Based Eating Plan
Behavioral
Lead sponsor
Drexel University
Other
Eligibility
18 Years to 75 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 14, 2023 · Synced Oct 5, 2026, 2:53 PM EDT
Completed Phase 2 Interventional Results available

Alii Supplement Study

NCT07271316
View directory record Official record
Conditions
Nutrient Deficiency, Happiness, Digestive Health, Vulnerability to Disease, Mood Swings, Energy
Interventions
Alii Supplement
Dietary Supplement
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 5, 2026, 2:53 PM EDT
Not listed Phase 1 Interventional

Study of Pembrolizumab With Pemetrexed and Oxaliplatin in Chemo-Refractory Metastatic Colorectal Cancer Patients

NCT03626922
View directory record Official record
Conditions
Metastatic Colorectal Cancer
Interventions
Pembrolizumab, Pemetrexed, Oxaliplatin, Dexamethasone, Folic Acid, Vitamin B-12
Drug · Dietary Supplement
Lead sponsor
NSABP Foundation Inc
Network
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
15
States / cities
Gainesville, Florida • Decatur, Illinois • Effingham, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2022 · Synced Oct 5, 2026, 2:53 PM 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 5, 2026, 2:53 PM EDT
Completed Not applicable Interventional

Study of the Cardiovascular Vitamin, CardioLife

NCT02088307
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
CardioLife
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 90 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 22, 2016 · Synced Oct 5, 2026, 2:53 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Administrative Claims Analysis of Metanx® in Diabetic Peripheral Neuropathy

NCT01247558
View directory record Official record
Conditions
Diabetic Peripheral Neuropathy (DPN)
Interventions
Metanx® (a medical food), Not treated with Metanx®
Other
Lead sponsor
Pamlab, L.L.C.
Industry
Eligibility
25 Years to 80 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated Jul 25, 2012 · Synced Oct 5, 2026, 2:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effectiveness of a Nutraceutical in Raising Circulating Serum Vitamin, Mineral and Amino Acid Levels in Patients.

NCT04054505
View directory record Official record
Conditions
Vitamin Deficiency
Interventions
EZPAK, Placebo
Dietary Supplement
Lead sponsor
Optimal Health Research
Other
Eligibility
26 Years to 75 Years
Enrollment
275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 10, 2024 · Synced Oct 5, 2026, 2:53 PM EDT
Completed Phase 1 Interventional

Vinflunine and Erlotinib or Pemetrexed in Treating Patients With Unresectable or Metastatic Solid Tumors

NCT00320073
View directory record Official record
Conditions
Unspecified Adult Solid Tumor, Protocol Specific
Interventions
erlotinib hydrochloride, pemetrexed disodium, vinflunine
Drug
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 16, 2012 · Synced Oct 5, 2026, 2:53 PM 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 5, 2026, 2:53 PM EDT
Completed No phase listed Observational

Effect of Cerefolin®/CerefolinNAC® on Biomarker Measurements

NCT01745198
View directory record Official record
Conditions
Mild Cognitive Impairment, Alzheimer's Disease, Alzheimer's Disease Related Disorders
Interventions
Not listed
Lead sponsor
Pamlab, Inc.
Industry
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Newport Beach, California
Source: ClinicalTrials.gov public record
Updated Apr 28, 2015 · Synced Oct 5, 2026, 2:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Exploratory Investigation of a Supplement to Promote Brain Health

NCT05520424
View directory record Official record
Conditions
Memory Deficits, Cognitive Change, Stress
Interventions
The Daily Supplement
Dietary Supplement
Lead sponsor
Parable
Industry
Eligibility
30 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Apr 3, 2024 · Synced Oct 5, 2026, 2:53 PM EDT
Recruiting Not applicable Interventional

Changes in Movement, Fitness, and Quality of Life in People With Parkinson's Disease After Different Exercise Programs

NCT07221266
View directory record Official record
Conditions
Parkinson Disease (PD)
Interventions
Guided Cycling, Non-Contact Boxing, Traditional Physical Therapy Program (Standard of Care)
Behavioral
Lead sponsor
University of Texas, El Paso
Other
Eligibility
50 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 5, 2026, 2:53 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 5, 2026, 2:53 PM EDT
Completed Phase 2 Interventional Results available

A Phase II Study of Pemetrexed Plus Gemcitabine for Metastatic/Recurrent Head and Neck Cancer (HNSCC)

NCT00589667
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
Pemetrexed plus Gemcitabine
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 2, 2014 · Synced Oct 5, 2026, 2:53 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Deplin® P.L.U.S. Program (Progress Through Learning Understanding & Support)

NCT01369030
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Deplin®
Other
Lead sponsor
Pamlab, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
554 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Greensboro, North Carolina • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 3, 2014 · Synced Oct 5, 2026, 2:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Energy Drinks

NCT02727920
View directory record Official record
Conditions
Energy Drinks
Interventions
Energy drink, Placebo
Dietary Supplement · Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 70 Years
Enrollment
228 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 3, 2018 · Synced Oct 5, 2026, 2:53 PM EDT
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 5, 2026, 2:53 PM 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 5, 2026, 2:53 PM EDT
Completed Phase 3 Interventional Results available

Lume Lung 2 : BIBF 1120 Plus Pemetrexed Compared to Placebo Plus Pemetrexed in 2nd Line Nonsquamous NSCLC

NCT00806819
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
Nintedanib (BIBF1120), Pemetrexed, B12, dexamethasone (or corticosteroid equivalent), placebo, Folic Acid
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
718 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
40
States / cities
Downy, California • Fountain Valley, California • Fullerton, California + 37 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2017 · Synced Oct 5, 2026, 2:53 PM EDT
Completed Early Phase 1 Interventional Results available

Treatment of HFpEF With Nitrate Supplement

NCT03289481
View directory record Official record
Conditions
Heart Failure With Normal Ejection Fraction
Interventions
Active lozenge, Placebo
Dietary Supplement · Drug
Lead sponsor
MaineHealth
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Rockport, Maine
Source: ClinicalTrials.gov public record
Updated Oct 6, 2021 · Synced Oct 5, 2026, 2:53 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vitamin Supplementation After Bariatric Surgery

NCT02686905
View directory record Official record
Conditions
Complications of Bariatric Procedures, Avitaminosis
Interventions
Chewable Multivitamin with Iron, PatchMD Vitamin D3/Calcium Patch, PatchMD Multivitamin Patch, PatchMD B12 Energy Plus Patch, Chewable Calcium, Quick Dissolve B12
Dietary Supplement
Lead sponsor
California State Polytechnic University, Pomona
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Brea, California
Source: ClinicalTrials.gov public record
Updated Sep 30, 2016 · Synced Oct 5, 2026, 2:53 PM EDT
Terminated Phase 2 Interventional Results available

Vitamin B12a Vasoplegic Syndrome

NCT03735316
View directory record Official record
Conditions
Vasoplegic Syndrome
Interventions
Hydroxocobalamin, Cardiopulmonary Bypass, Placebos
Drug · Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced Oct 5, 2026, 2:53 PM EDT
Terminated Phase 2Phase 3 Interventional

Vitamin B12 Status and Response to Vitamin B12 Supplementation in Patients With Parkinson's Disease

NCT00208611
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Vitamin B12 Supplementation
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
21 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 18, 2014 · Synced Oct 5, 2026, 2:53 PM EDT