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ClinicalTrials.gov public records Last synced Sep 27, 2026, 1:20 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Breast Cancer, Bone Diseases
Interventions
Vitamin D
Drug
Lead sponsor
Mark Pegram
Other
Eligibility
18 Years to 85 Years · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Stanford, California
Conditions
Cutaneous T-cell Lymphoma
Interventions
Vitamin B12, Folic Acid, Pralatrexate
Dietary Supplement · Drug
Lead sponsor
Acrotech Biopharma Inc.
Industry
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
10
States / cities
Duarte, California • Redwood City, California • New Haven, Connecticut + 6 more
Conditions
Gut Health, Metabolism, Weight Loss, Energy
Interventions
Colon Broom Premium supplement
Dietary Supplement
Lead sponsor
Gut Health, UAB
Industry
Eligibility
30 Years to 50 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Osteoporosis
Interventions
Teriparatide, Risedronate, Placebo, Calcium, Vitamin D
Drug · Dietary Supplement
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
50 Years and older
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
6
States / cities
Fort Lauderdale, Florida • New Port Richey, Florida • Orlando, Florida + 3 more
Conditions
Bone Alteration, Dietary Modification
Interventions
Calcium/Vitamin D, Placebo
Dietary Supplement
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
17 Years to 42 Years
Enrollment
175 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Columbia, South Carolina
Completed No phase listed Observational Accepts healthy volunteers

Vitamin D Status and Metabolism in Human Pregnancy

NCT03051867
Conditions
Pregnancy
Interventions
Not listed
Lead sponsor
Cornell University
Other
Eligibility
21 Years and older · Female only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Ithaca, New York
Conditions
Adult Solid Neoplasm
Interventions
Calcitriol, Cisplatin, Gemcitabine Hydrochloride, Pharmacological Study
Dietary Supplement · Drug · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
2
States / cities
Buffalo, New York • Charlottesville, Virginia
Conditions
COVID-19, Coronavirus Infection, Sars-CoV2, Corona Virus Infection, COVID, Coronavirus, Coronavirus-19, Coronavirus 19
Interventions
Hydroxychloroquine, Vitamin C, Vitamin D, Zinc
Drug · Dietary Supplement
Lead sponsor
ProgenaBiome
Other
Eligibility
18 Years and older
Enrollment
254 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Ventura, California
Conditions
COVID-19, Coronavirus, SARS-CoV2 Infection
Interventions
Rayaldee, Placebo
Drug
Lead sponsor
OPKO Health, Inc.
Industry
Eligibility
18 Years and older
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
10
States / cities
San Francisco, California • Miami, Florida • Evanston, Illinois + 6 more
Conditions
Atopic Dermatitis, Eczema, DNA
Interventions
DNA reports, Information reports
Behavioral
Lead sponsor
Studies&Me
Industry
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Redwood City, California
Completed Not applicable Interventional Accepts healthy volunteers

CT-Based Modeling of Bone Micro-Architecture and Fracture-Risk in COPD

NCT03534934
Conditions
Pulmonary Disease, Chronic Obstructive, Osteoporosis
Interventions
Vital signs, Urine Pregnancy Test, Questionnaires, Blood Test, Duel-energy X-ray absorptiometry scan, Multi-detector computed tomography, Dual-energy X-ray absorptiometry scan
Diagnostic Test · Other
Lead sponsor
Punam K Saha
Other
Eligibility
45 Years to 90 Years
Enrollment
560 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
2
States / cities
Iowa City, Iowa • New York, New York
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
Completed Not applicable Interventional Accepts healthy volunteers

Provitamin A Absorption and Conversion With Avocados

NCT01432210
Conditions
Healthy
Interventions
Post-prandial Feeding Study
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Burn Injury
Interventions
dl-alpha-tocopheryl acetate
Drug
Lead sponsor
Shriners Hospitals for Children
Other
Eligibility
6 Months to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2021
U.S. locations
1
States / cities
Galveston, Texas
Conditions
Libido, Intimacy, Gastrointestinal Issues
Interventions
Reset, Stay Ready Fiber, Libido, Testosterone supplement
Dietary Supplement
Lead sponsor
906 CMVI Holdings
Industry
Eligibility
18 Years to 44 Years · Male only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Aging
Interventions
Vitamin D3 (cholecalciferol), fish oil
Dietary Supplement · Drug
Lead sponsor
Augusta University
Other
Eligibility
50 Years and older
Enrollment
1,054 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Augusta, Georgia
Conditions
Leukemia, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Diseases
Interventions
sodium phenylbutyrate, tretinoin
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years to 120 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2005
U.S. locations
1
States / cities
Baltimore, Maryland
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
Conditions
Warts
Interventions
Vitamin D3, Placebo
Drug
Lead sponsor
Stephen P. Merry
Other
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Ganglioneuroblastoma, Nodular, Neuroblastoma
Interventions
Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Computed Tomography, Dinutuximab, FDG-Positron Emission Tomography, Iobenguane I-123, Irinotecan, Isotretinoin, Magnetic Resonance Imaging, Multigated Acquisition Scan, Sargramostim, Temozolomide
Procedure · Biological · Radiation + 1 more
Lead sponsor
Children's Oncology Group
Network
Eligibility
Up to 30 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
70
States / cities
Mesa, Arizona • Little Rock, Arkansas • Downey, California + 58 more
Conditions
Menstrual Cramps, Women's Health, Fatigue
Interventions
My Happy Flo
Dietary Supplement
Lead sponsor
My Happy Flo
Industry
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Conditions
Severe Thermal Injury, Greater Than 20% TBSA
Interventions
Vitamin C, Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Sepsis, Septic Shock, Metabolic Disturbance
Interventions
vitamin C, vitamin B1, hydrocortisone, Normal saline
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
13
States / cities
Phoenix, Arizona • Boston, Massachusetts • Cambridge, Massachusetts + 6 more
Recruiting Phase 1 Interventional Accepts healthy volunteers

B-Complex: A Nutraceutical SANS Countermeasure

NCT05366933
Conditions
Optic Disc Edema, Endothelial Dysfunction
Interventions
Vitamin B-Complex Supplement
Drug
Lead sponsor
National Aeronautics and Space Administration (NASA)
Federal
Eligibility
20 Years to 100 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2032
U.S. locations
1
States / cities
Houston, Texas