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Showing 1–24 of 65 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Maternal and Child Health Outcomes
Interventions
Vitamin A alone, Multivitamins excluding vitamin A, multivitamins including vitamin A, Placebo
Dietary Supplement · Other
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
18 Years and older · Female only
Enrollment
771 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Phase 3 Interventional Results available

Convalescent Plasma in Outpatients With COVID-19

NCT04355767
Conditions
Covid19
Interventions
Convalescent Plasma, Saline
Biological
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
511 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
53
States / cities
Chandler, Arizona • Phoenix, Arizona • La Jolla, California + 41 more
Completed Phase 4 Interventional Accepts healthy volunteers Results available

COcoa Supplement and Multivitamin Outcomes Study

NCT02422745
Conditions
Cardiovascular Disease, Cancer
Interventions
Cocoa extract, Multivitamin, Cocoa extract placebo, Multivitamin placebo
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
60 Years and older
Enrollment
21,442 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2023
U.S. locations
2
States / cities
Boston, Massachusetts • Seattle, Washington
Conditions
Lupus Erythematosus, Systemic
Interventions
Atorvastatin, Placebo atorvastatin
Drug
Lead sponsor
Laura Schanberg
Other
Eligibility
10 Years to 21 Years
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2009
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Tuberculosis
Interventions
Multivitamins, Placebo
Dietary Supplement · Other
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
18 Years and older
Enrollment
876 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
1
States / cities
Boston, Massachusetts
Completed Phase 2 Interventional Accepts healthy volunteers

Vitamin/Mineral Supplement for Children and Adults With Autism

NCT01225198
Conditions
Autism
Interventions
Multi-Vitamin/Mineral Supplement, Liquid Placebo
Dietary Supplement · Other
Lead sponsor
Arizona State University
Other
Eligibility
3 Years to 60 Years
Enrollment
143 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Tempe, Arizona
Conditions
Hot Flashes, Menopause
Interventions
Omega 3 fatty acid vitamins, Placebo capsules
Dietary Supplement
Lead sponsor
Christiana Care Health Services
Other
Eligibility
Up to 65 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Newark, Delaware
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
Conditions
Chronic Pain
Interventions
BioPlete™ Advanced Formula, Placebo
Dietary Supplement
Lead sponsor
Ethos Research & Development
Industry
Eligibility
30 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Tampa, Florida • West Palm Beach, Florida
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Randomized Trial: Maternal Vitamin D Supplementation to Prevent Childhood Asthma (VDAART)

NCT00920621
Conditions
Asthma
Interventions
Vitamin D 3 cholecalciferol, Vitamin D3
Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 39 Years · Female only
Enrollment
876 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2023
U.S. locations
3
States / cities
San Diego, California • Boston, Massachusetts • St Louis, Missouri
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
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
Conditions
Subjective Memory Loss in Older Persons
Interventions
Cerefolin NAC (a medical food), Cerefolin NAC placebo
Other
Lead sponsor
Rush University Medical Center
Other
Eligibility
60 Years and older
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Parkinson's Disease
Interventions
Folic Acid, Vitamin B6, Vitamin B12, B6, B12, L-methylfolate, B6, B12, Placebo
Dietary Supplement
Lead sponsor
Northwell Health
Other
Eligibility
30 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2010
U.S. locations
1
States / cities
Manhasset, New York
Conditions
Alzheimer Disease, Early Onset
Interventions
Multivitamin-no intervention
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
65 Years and older
Enrollment
200 participants
Timeline
2022 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Conditions
Leukemia, Myelodysplastic Syndromes
Interventions
filgrastim, sargramostim, cytarabine, daunorubicin hydrochloride, zosuquidar trihydrochloride, Placebo
Biological · Drug
Lead sponsor
Eastern Cooperative Oncology Group
Network
Eligibility
60 Years and older
Enrollment
449 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
91
States / cities
Scottsdale, Arizona • Aurora, Colorado • Boulder, Colorado + 67 more
Conditions
Healthy Participants
Interventions
Influenza virus vaccine, Vitamins A and D, Placebo
Biological · Dietary Supplement · Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
2 Years to 8 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Alcohol Dependence
Interventions
Prometa Treatment Program
Drug
Lead sponsor
Institute of Addiction Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Menopause
Interventions
multi-vitamin, multi-nutrient, Placebo
Dietary Supplement
Lead sponsor
Biologica Inc
Industry
Eligibility
43 Years to 55 Years · Female only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
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
Completed Phase 4 Interventional Results available

Weight Loss Aid in an Exposed Population

NCT03582722
Conditions
Polybrominated Biphenyl Poisoning
Interventions
Orlistat, Placebo capsule, Multivitamin
Drug · Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Completed Not applicable Interventional Accepts healthy volunteers

Role of Centrum® Silver® in Improving Micronutrient Status in Older Men

NCT03004807
Conditions
Vitamin Deficiency, Mineral Deficiency, Aging
Interventions
Centrum Silver Mens' Formula, Control
Dietary Supplement · Other
Lead sponsor
Oregon State University
Other
Eligibility
65 Years and older · Male only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Corvallis, Oregon
Completed Not applicable Interventional Results available

VITATOPS: A Study of VITAmins TO Prevent Stroke

NCT00097669
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
Conditions
Down Syndrome, Alzheimer Disease
Interventions
Vitamin E, multivitamin, Placebo
Drug
Lead sponsor
New York State Institute for Basic Research
Government
Eligibility
50 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2012
U.S. locations
14
States / cities
Farmington, Connecticut • Tampa, Florida • Atlanta, Georgia + 10 more