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Showing 1–24 of 43 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Oral Multivitamin Clear all
Completed Phase 1 Interventional

Burn Micronutrient Repletion Pilot Study

NCT00879723
View directory record Official record
Conditions
Burn
Interventions
Vitamin and Mineral supplementation
Dietary Supplement
Lead sponsor
Southern Illinois University
Other
Eligibility
19 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Springfield, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 25, 2015 · Synced Sep 10, 2026, 3:18 AM EDT
Not listed Phase 2 Interventional

An Open Label Trial to Evaluate the Effects of a Novel Renal Multivitamin on Inflammation and Other Biomarkers in Endstage Renal Disease Patients

NCT00834301
View directory record Official record
Conditions
Hyperphosphatemia, Inflammation, Renal Disease
Interventions
Oral Multivitamin
Dietary Supplement
Lead sponsor
Nephrian
Industry
Eligibility
18 Years to 80 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Simi Valley, California
Source: ClinicalTrials.gov public record
Updated Feb 2, 2009 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 1 Interventional Results available

Pre-operative IRX-2 in Early Stage Breast Cancer (ESBC)

NCT02950259
View directory record Official record
Conditions
Breast Neoplasm, Breast Neoplasm, Male, Triple Negative Breast Cancer
Interventions
Cyclophosphamide, Indomethacin, Omeprazole, Multivitamin
Drug · Dietary Supplement
Lead sponsor
Providence Health & Services
Other
Eligibility
Not listed
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 2, 2025 · Synced Sep 10, 2026, 3:18 AM 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 10, 2026, 3:18 AM EDT
Not yet recruiting Not applicable Interventional

Vitamin A Supplementation and Breast Milk Vitamin A Levels in Mothers of Preterm Infants

NCT07736768
View directory record Official record
Conditions
Premature, Preterm Infant Health, Vitamin A Deficiency, Human Milk, Breastfeeding
Interventions
Oral multivitamin containing vitamin A
Dietary Supplement
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 3 Interventional

Multivitamin Dosage Regimens in the Prevention of Adverse Pregnancy Outcomes Among HIV-Positive Women

NCT00197678
View directory record Official record
Conditions
HIV Infections
Interventions
Multivitamins-Multiples of RDA, Multivitamins-Single RDA
Dietary Supplement
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
18 Years and older · Female only
Enrollment
1,141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 10, 2010 · Synced Sep 10, 2026, 3:18 AM EDT
Active, not recruiting Phase 2 Interventional

Controlled Trial of Omadacycline Randomized Treatment Given for Bone and Joint Infection

NCT05753215
View directory record Official record
Conditions
Bone Infection, Joint Infection, Bone and Joint Infection
Interventions
Omadacycline Pill, Standard of Care
Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Sep 10, 2026, 3:18 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Trial of Antibody Responses by Vitamin Supplementation

NCT03859687
View directory record Official record
Conditions
Healthy Participants
Interventions
Vitamin A supplementation, No vitamin A supplementation
Biological
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
1 Year to 4 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Supplementary Vitamins on Oxidant Gene Expression in the Lungs of Healthy Smokers

NCT00565214
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Group 1, Group 2
Dietary Supplement
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 70 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 24, 2017 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 2 Interventional Results available

Effects of an Antioxidant-Enriched Multivitamin Supplement on Inflammation and Oxidative Stress in Cystic Fibrosis

NCT01859390
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
AquADEKs-2, control multivitamin
Drug · Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
10 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
15
States / cities
Tucson, Arizona • Aurora, Colorado • Orlando, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2017 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 2 Interventional Results available

Calcitriol, Physical Activity, and Bone Health in Cancer Survivors

NCT00904033
View directory record Official record
Conditions
Breast Neoplasms, Bone and Bones
Interventions
Calcitriol, Exercise, Multivitamin
Drug · Behavioral · Dietary Supplement
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older · Female only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 22, 2019 · Synced Sep 10, 2026, 3:18 AM EDT
Withdrawn Phase 2 Interventional

Chronic Fatigue Syndrome: A Presumptive Mitochondrial Disorder

NCT01471652
View directory record Official record
Conditions
Chronic Fatigue Syndrome
Interventions
Nutraceutical supplements, Placebo
Drug
Lead sponsor
Columbia University
Other
Eligibility
25 Years to 55 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2015 · Synced Sep 10, 2026, 3:18 AM EDT
Withdrawn Phase 2 Interventional

Growth Hormone and Exclusion Diet Therapy in Juvenile Crohn's Disease

NCT01647412
View directory record Official record
Conditions
Crohn's Disease
Interventions
Growth Hormone, Nutraceutical Combination, Exclusion Diet, Placebo Growth Hormone
Drug · Dietary Supplement · Other
Lead sponsor
Columbia University
Other
Eligibility
10 Years to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2015 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 2Phase 3 Interventional

Prometa Pharmacotherapy for Methamphetamine Dependence

NCT00260481
View directory record Official record
Conditions
Drug Abuse, Drug Dependence
Interventions
Prometa, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 21, 2016 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin/Mineral Absorption From Two Different Supplements

NCT05336994
View directory record Official record
Conditions
Healthy Nutrition
Interventions
Multivitamin/mineral supplement A, Multivitamin/mineral supplement B
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 32 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Sep 1, 2022 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 2 Interventional Results available

Prospective Analysis of the Use of N-Acetylcysteine and Vitamins in the Treatment of TBI in Geriatric Patients

NCT04291066
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
N-Acetyl cysteine
Drug
Lead sponsor
HonorHealth Research Institute
Other
Eligibility
60 Years to 100 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
2
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 10, 2026, 3:18 AM EDT
Completed No phase listed Observational

A Comparison of Two Caloric Supplements in the Prevention of Weight Loss in Patients With AIDS Who Take Daily Multivitamin and Mineral Supplements

NCT00001077
View directory record Official record
Conditions
HIV Infections, HIV Wasting Syndrome
Interventions
Multivitamin and mineral supplements, Peptamen, NuBasics
Dietary Supplement
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
536 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 1998
U.S. locations
17
States / cities
San Francisco, California • Denver, Colorado • Washington D.C., District of Columbia + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2013 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 3 Interventional

High-Dose Multivitamins Compared to a Placebo in Preventing the Recurrence of Cancer in Patients With Early Stage Bladder Cancer

NCT00003623
View directory record Official record
Conditions
Bladder Cancer
Interventions
multivitamin, Placebo
Dietary Supplement · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2003
U.S. locations
16
States / cities
Scottsdale, Arizona • Urbana, Illinois • Cedar Rapids, Iowa + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2016 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 3 Interventional Results available

Prevention of Osteoporosis in Bone Marrow Transplantation (BMT) Patients

NCT00824993
View directory record Official record
Conditions
Hematological Malignancies
Interventions
Ibandronate, Vitamin Supplements
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trial Comparing Iron Supplementation Versus Routine Iron Intake in Very Low Birth Weight Infants

NCT01125163
View directory record Official record
Conditions
Iron Deficiency Anemia
Interventions
Iron Supplement, multivitamin
Dietary Supplement
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
24 Weeks to 32 Weeks
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 3, 2019 · Synced Sep 10, 2026, 3:18 AM EDT
Terminated Not applicable Interventional

Isoflavones in Treating Women Who Have Breast Cancer and Are Planning to Undergo Mastectomy or Lumpectomy

NCT00036686
View directory record Official record
Conditions
Breast Cancer
Interventions
Soy protein isolate, Placebo
Dietary Supplement · Other
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
7
States / cities
Phoenix, Arizona • Tampa, Florida • Savannah, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2012 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Combinatorial Nutritional Supplementation on Immune Function in Healthy Older Adults

NCT02876315
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Redoxon VI, placebo
Dietary Supplement
Lead sponsor
Oregon State University
Other
Eligibility
55 Years to 75 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 30, 2022 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 3 Interventional Results available

Zoledronate in Preventing Skeletal (Bone)-Related Events in Men Who Are Receiving Androgen Deprivation Therapy For Prostate Cancer and Bone Metastases

NCT00079001
View directory record Official record
Conditions
Metastatic Cancer, Prostate Cancer
Interventions
zoledronic acid, placebo, androgen deprivation therapy, GnRH agonist, Calcium supplement, Vitamin D
Drug · Other · Dietary Supplement
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Male only
Enrollment
645 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2014
U.S. locations
238
States / cities
Mobile, Alabama • Fort Smith, Arkansas • Little Rock, Arkansas + 159 more
Source: ClinicalTrials.gov public record
Updated May 11, 2020 · Synced Sep 10, 2026, 3:18 AM EDT
Completed Phase 3 Interventional Results available

A Randomized Phase III Study of Vitamins B6 and B12 to Prevent Chemotherapy-Induced Neuropathy in Cancer Patients

NCT00659269
View directory record Official record
Conditions
Cancer
Interventions
Multivitamin (MV), Multivitamin + Vitamin B12 + Vitamin B6, Chemotherapy
Dietary Supplement · Drug
Lead sponsor
New Mexico Cancer Research Alliance
Other
Eligibility
18 Years and older
Enrollment
319 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
5
States / cities
Albuquerque, New Mexico • Santa Fe, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 25, 2016 · Synced Sep 10, 2026, 3:18 AM EDT