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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Vitamin B Clear all
Terminated Not applicable Interventional Accepts healthy volunteers

Standard Process Heart and Gut Health Study

NCT05795946
View directory record Official record
Conditions
Nutrition, Healthy
Interventions
Whole food-based B and D vitamins
Dietary Supplement
Lead sponsor
Standard Process Inc.
Industry
Eligibility
25 Years to 80 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 9, 2025 · Synced Sep 27, 2026, 5:22 PM EDT
Suspended Phase 2 Interventional

A Study of Gemcitabine ± Erlotinib and DN-101 Versus Gemcitabine ± Erlotinib and Placebo in Patients With Advanced Pancreatic Cancer

NCT00536770
View directory record Official record
Conditions
Pancreatic Cancer
Interventions
placebo + gemcitabine + erlotinib, Placebo + gemcitabine, calcitriol + gemcitabine, calcitriol + gemcitabine + erlotinib
Drug
Lead sponsor
Novacea
Industry
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2007
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 5, 2007 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Placebo-Controlled Study Assessing the Use of a Novel Exfoliative Serum With A Chemical Peel to Improve Photodamage in Adults

NCT05908825
View directory record Official record
Conditions
Photodamaged Skin
Interventions
Vitamin C with AHA Exfoliative Serum, Placebo serum
Drug
Lead sponsor
Austin Institute for Clinical Research
Network
Eligibility
30 Years to 65 Years · Female only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Pflugerville, Texas
Source: ClinicalTrials.gov public record
Updated Jul 18, 2024 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Not applicable Interventional

Vitamin D Reabsorption in Adolescents and Young Adults With HIV Infection

NCT00490412
View directory record Official record
Conditions
HIV Infections
Interventions
Vitamin D supplement, Placebo
Dietary Supplement · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 24 Years
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
14
States / cities
Los Angeles, California • San Francisco, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2017 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Not applicable Interventional

The Impact of Riboflavin on the Severity and Duration of Sports Related Concussion

NCT02235337
View directory record Official record
Conditions
Sports Related Concussion
Interventions
Riboflavin 400mg daily
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
2
States / cities
Charlottesville, Virginia • Harrisonburg, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 10, 2017 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 2 Interventional Results available

To Immunize Patients With Extensive Stage SCLC Combined With Chemo With or Without All Trans Retinoic Acid

NCT00617409
View directory record Official record
Conditions
Small Cell Lung Cancer
Interventions
Paclitaxel, Drug: Ad.p53-DC vaccines, All -trans Retinoic Acid (ATRA)
Drug · Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2019
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Nov 7, 2019 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 3 Interventional

Osteoporosis Prevention After Heart Transplant

NCT00000412
View directory record Official record
Conditions
Osteoporosis, Cardiac Transplantation
Interventions
Alendronate, Calcitriol, Placebo Alendronate, Placebo Calcitriol
Drug
Lead sponsor
Columbia University
Other
Eligibility
20 Years to 70 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2002
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 6, 2015 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Randomized Controlled Trial Testing The Effect Of A Multi-Nutrient Fortified Juice

NCT01909063
View directory record Official record
Conditions
Vitamin D Deficiency, Hypovitaminosis A, Vitamin E Deficiency
Interventions
Vitamin D, Vitamin D, Vitamin E, and Vitamin A, Control, 700 mg Calcium
Dietary Supplement
Lead sponsor
Boston University
Other
Eligibility
6 Years to 10 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 27, 2017 · Synced Sep 27, 2026, 5:22 PM EDT
Active, not recruiting Phase 2 Interventional

MT2013-31: Allo HCT for Metabolic Disorders and Severe Osteopetrosis

NCT02171104
View directory record Official record
Conditions
Mucopolysaccharidosis Disorders, Hurler Syndrome, Hunter Syndrome, Maroteaux Lamy Syndrome, Sly Syndrome, Alpha-Mannosidosis, Fucosidosis, Aspartylglucosaminuria, Glycoprotein Metabolic Disorders, Sphingolipidoses, Recessive Leukodystrophies, Globoid Cell Leukodystrophy, Metachromatic Leukodystrophy, Niemann-Pick B, Niemann-Pick C Subtype 2, Sphingomyelin Deficiency, Peroxisomal Disorders, Adrenoleukodystrophy With Cerebral Involvement, Zellweger Syndrome, Neonatal Adrenoleukodystrophy, Infantile Refsum Disease, Acyl-CoA Oxidase Deficiency, D-Bifunctional Enzyme Deficiency, Multifunctional Enzyme Deficiency, Alpha-methylacyl-CoA Racmase Deficiency, Mitochondrial Neurogastrointestingal Encephalopathy, Severe Osteopetrosis, Hereditary Leukoencephalopathy With Axonal Spheroids (HDLS; CSF1R Mutation), Inherited Metabolic Disorders
Interventions
Stem Cell Transplantation, IMD Preparative Regimen, Osteopetrosis Only Preparative Regimen, Osteopetrosis Haploidentical Only Preparative Regimen, cALD SR-A (Standard-Risk, Regimen A), cALD SR-B (Standard-Risk, Regimen B), cALD HR-D (High-Risk, Regimen C), cALD HR-D (High-Risk, Regimen D)
Biological · Drug
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 55 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Small Daily Doses of B-carotene on Breast Milk Retinol

NCT01803659
View directory record Official record
Conditions
Vitamin A Status
Interventions
b-carotene, retinyl palmitate, placebo
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jun 10, 2015 · Synced Sep 27, 2026, 5:22 PM EDT
Terminated Phase 1 Interventional

ZD6474 Alone and in Combination With Retinoic Acid in Pediatric Neuroblastoma

NCT00533169
View directory record Official record
Conditions
Neuroblastoma
Interventions
ZD6474, Retinoic Acid
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
2 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 14, 2011 · Synced Sep 27, 2026, 5:22 PM EDT
Terminated Phase 2 Interventional Results available

Docetaxel With or Without Ascorbic Acid in Treating Patients With Metastatic Prostate Cancer

NCT02516670
View directory record Official record
Conditions
Hormone-Resistant Prostate Cancer, Metastatic Prostate Carcinoma, Stage IV Prostate Cancer
Interventions
Ascorbic Acid, Docetaxel, Laboratory Biomarker Analysis, Pharmacological Study, Placebo, Quality-of-Life Assessment
Dietary Supplement · Drug · Other
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
6
States / cities
Washington D.C., District of Columbia • Annapolis, Maryland • Baltimore, Maryland + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 6, 2023 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 3 Interventional Results available

Prophylaxis to Reduce Postoperative Atrial Fibrillation in Cardiac Surgery

NCT00953212
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter
Interventions
beta blockers, amiodarone, ascorbic acid
Drug
Lead sponsor
MaineHealth
Other
Eligibility
18 Years and older
Enrollment
304 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Portland, Maine
Source: ClinicalTrials.gov public record
Updated Apr 25, 2018 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 1 Interventional Results available

Phase I Vorinostat in Combination With Niacinamide and Etoposide for Lymphoid Malignancies

NCT00691210
View directory record Official record
Conditions
Hodgkin's Disease, Non-Hodgkin's Lymphoma
Interventions
Vorinostat, Niacinamide, Etoposide
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 19, 2020 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Nutrition and Body Composition in Acute Lymphoblastic Leukemia

NCT01317940
View directory record Official record
Conditions
Precursor Cell Lymphoblastic Leukemia-Lymphoma, Vitamin D Deficiency
Interventions
Vitamin D and Calcium Citrate
Dietary Supplement
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
10 Years to 29 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 7, 2020 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 3 Interventional Results available

Pharmacokinetic and Pharmacodynamic Study of High-Dose Rifapentine and Moxifloxacin for Treatment of Tuberculosis

NCT02563327
View directory record Official record
Conditions
Tuberculosis
Interventions
Rifapentine, Moxifloxacin, Rifampin, Isoniazid, Pyrazinamide, Ethambutol, Pyridoxine
Drug · Dietary Supplement
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
18 Years and older
Enrollment
2,516 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

BVAIT: B-Vitamin Atherosclerosis Intervention Trial

NCT00114400
View directory record Official record
Conditions
Atherosclerosis
Interventions
folic acid, vitamin B12, vitamin B6
Drug
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
40 Years and older
Enrollment
506 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2007
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 10, 2009 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Aza-SAHA-GBM With AutoSCT for Refractory Lymphoma

NCT01983969
View directory record Official record
Conditions
Advanced Cancers, Lymphoma
Interventions
Azacitidine, Vorinostat, Gemcitabine, Busulfan, Melphalan, Dexamethasone, Caphosol, Glutamine, Pyridoxine, Rituximab
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
15 Years to 65 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 26, 2020 · Synced Sep 27, 2026, 5:22 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Lactoferrin-enriched Whey on Iron Status in Females

NCT06232642
View directory record Official record
Conditions
Serum Ferritin
Interventions
Lactoferrin, iron and B12 in Whey Protein, Lactoferrin, Iron and B12 in Rice Protein, Lactoferrin, Iron and B12 in Maltrodextrin
Dietary Supplement
Lead sponsor
Utah State University
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Logan, Utah
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Restoration of Cutaneous Sensorum in Patients With Diabetic Peripheral Neuropathy (DPN) Via Metanx®

NCT00933998
View directory record Official record
Conditions
Diabetic Peripheral Neuropathy
Interventions
Metanx® (Oral L-methylfolate, Methylcobalamin and Pyridoxal 5'-phosphate)
Other
Lead sponsor
Carolina Musculoskeletal Institute
Other
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2006
U.S. locations
1
States / cities
Aiken, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 28, 2014 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 3 Interventional

Trial of Vitamins in HIV Progression and Transmission

NCT00197743
View directory record Official record
Conditions
HIV Infections, Disease Transmission, Vertical
Interventions
Vitamin A + Beta Carotene, Multivitamins, Placebo
Dietary Supplement · Other
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
18 Years and older · Female only
Enrollment
1,085 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2003
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 10, 2010 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 1 Interventional

Impact of Once-Weekly Rifapentine and Isoniazid on the Steady State Pharmacokinetics of Dolutegravir and Darunavir Boosted With Cobicistat in Healthy Volunteers

NCT02771249
View directory record Official record
Conditions
HIV Infected Population With Latent Tuberculosis
Interventions
rifapentene (RPT), darunavir/cobicistat (DRV/c), Isoniazid (INH), Pyridoxine
Drug · Dietary Supplement
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 17, 2022 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

The Effect of Phentermine and B12 on Weight Loss Among Obese Patients

NCT01719185
View directory record Official record
Conditions
Obesity, Hypertension
Interventions
Phentermine and B12, Phentermine
Drug
Lead sponsor
Dr. Michael Lang
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 12, 2015 · Synced Sep 27, 2026, 5:22 PM EDT
Completed Phase 3 Interventional Results available

The Efficacy Of Diclectin® For Nausea And Vomiting Of Pregnancy

NCT00614445
View directory record Official record
Conditions
Nausea and Vomiting of Pregnancy
Interventions
doxylamine succinate 10 mg/pyridoxine hydrochloride 10 mg, Placebo
Drug
Lead sponsor
Duchesnay Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
7
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland • Pittsburgh, Pennsylvania + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 22, 2021 · Synced Sep 27, 2026, 5:22 PM EDT