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ClinicalTrials.gov public records Last synced Oct 7, 2026, 11:03 PM EDT

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Showing 49–72 of 549 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: vitamin D3 (Replesta) Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Exercise and NutraStem (NT-020): Effects on Stem Cells

NCT01847027
View directory record Official record
Conditions
Adult Stem Cell Proliferation
Interventions
NutraStem, Placebo
Drug
Lead sponsor
University of North Texas Health Science Center
Other
Eligibility
50 Years to 70 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated May 29, 2019 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D Status Impacts Inflammation and Risk of Infections During Pregnancy

NCT01815047
View directory record Official record
Conditions
Inflammation, Infection
Interventions
Vitamin D3 Supplementation
Dietary Supplement
Lead sponsor
Cornell University
Other
Eligibility
13 Years to 18 Years · Female only
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2019
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Oct 28, 2019 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Not applicable Interventional Results available

Effect of Vitamin D on the Honeymoon Period in Children and Adolescents With Type 1 Diabetes

NCT01724190
View directory record Official record
Conditions
Type 1 Diabetes
Interventions
Vitamin D, Placebo
Drug
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
4 Years to 18 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Phase 1 Interventional

Vitamin D Therapy in Patients With Systemic Lupus Erythematosus (SLE)

NCT00418587
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
Cholecalciferol
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 85 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 18, 2018 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Phase 4 Interventional Results available

Wheezing in Black Preterm Infants: Impact of Vitamin D Supplementation Strategy

NCT01601847
View directory record Official record
Conditions
Wheezing, Allergy
Interventions
Cholecalciferol, Cholecalciferol
Dietary Supplement · Drug
Lead sponsor
Case Western Reserve University
Other
Eligibility
Up to 1 Year
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
5
States / cities
New York, New York • Cleveland, Ohio • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 8, 2018 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Vitamin D/Calcium Polyp Prevention Study

NCT00153816
View directory record Official record
Conditions
Colorectal Cancer, Polyps, Adenomas
Interventions
Calcium Carbonate, Vitamin D3, placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
45 Years to 75 Years
Enrollment
2,813 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2016
U.S. locations
10
States / cities
Los Angeles, California • Denver, Colorado • Atlanta, Georgia + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 15, 2017 · Synced Oct 7, 2026, 11:03 PM EDT
Active, not recruiting Not applicable Interventional

Cholecalciferol in Improving Survival in Patients With Newly Diagnosed Cancer With Vitamin D Insufficiency

NCT01787409
View directory record Official record
Conditions
Aggressive Non-Hodgkin Lymphoma, Anaplastic Large Cell Lymphoma, Angioimmunoblastic T-Cell Lymphoma, Chronic Lymphocytic Leukemia, Diffuse Large B-Cell Lymphoma, Enteropathy-Associated T-Cell Lymphoma, Hepatosplenic T-Cell Lymphoma, Mature T-Cell and NK-Cell Non-Hodgkin Lymphoma, Mediastinal (Thymic) Large B-Cell Lymphoma, Nasal Type Extranodal NK/T-Cell Lymphoma, Peripheral T-Cell Lymphoma, Not Otherwise Specified, Primary Cutaneous Anaplastic Large Cell Lymphoma, Refractory Anaplastic Large Cell Lymphoma, Small Lymphocytic Lymphoma, Subcutaneous Panniculitis-Like T-Cell Lymphoma
Interventions
Cholecalciferol, Laboratory Biomarker Analysis
Dietary Supplement · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
565 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2028
U.S. locations
5
States / cities
Scottsdale, Arizona • Atlanta, Georgia • Iowa City, Iowa + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dairy Foods Compared to Dietary Supplements and Bone Health

NCT01394484
View directory record Official record
Conditions
Osteoporosis, Bone Loss, Osteopenia
Interventions
Intervention I, Intervention II
Other · Dietary Supplement
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
50 Years to 65 Years · Female only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Feb 26, 2013 · Synced Oct 7, 2026, 11:03 PM EDT
Terminated Not applicable Interventional Results available

Vitamin D Replacement: The Effect on Statin-Related Myalgias

NCT01022398
View directory record Official record
Conditions
HMG-CoA Reductase Inhibitors-related Myalgias
Interventions
cholecalciferol/placebo
Drug
Lead sponsor
Creighton University
Other
Eligibility
19 Years to 89 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated May 20, 2013 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D and Adipose Tissue Inflammation

NCT01477034
View directory record Official record
Conditions
Vitamin D Deficiency, Obesity, Type 2 Diabetes Mellitus, Intestinal Permeability
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 4, 2014 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Vitamin D Supplementation and Muscle Function in Older Adults

NCT02015611
View directory record Official record
Conditions
Neuromuscular Function
Interventions
Vitamin D, Placebo
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years to 89 Years
Enrollment
136 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 15, 2022 · Synced Oct 7, 2026, 11:03 PM EDT
Recruiting No phase listed Observational

Vitamin D Dynamics in Women

NCT02705287
View directory record Official record
Conditions
Pregnancy
Interventions
Vitamin D dynamics-pregnant, Vitamin D dynamics-nonpregnant
Other
Lead sponsor
Cornell University
Other
Eligibility
20 Years to 39 Years · Female only
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Oct 7, 2026, 11:03 PM EDT
Recruiting Phase 3 Interventional

Vitamin D for Prostate Endocrine Therapy

NCT05838716
View directory record Official record
Conditions
Stage I Prostate Cancer AJCC v8, Stage II Prostate Cancer AJCC v8, Stage III Prostate Cancer AJCC v8, Stage IVA Prostate Cancer AJCC v8
Interventions
Biospecimen Collection, D Vitamin, Dual X-ray Absorptiometry, Placebo Administration, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Dietary Supplement · Drug + 1 more
Lead sponsor
University of Rochester
Other
Eligibility
50 Years and older · Male only
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
51
States / cities
Newark, Delaware • Danville, Illinois • Decatur, Illinois + 39 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Phase 1Phase 2 Interventional

Study of DN101 and Taxotere in Patients With Advanced Non-Small Cell Lung Cancer

NCT00066885
View directory record Official record
Conditions
Carcinoma, Non-Small-Cell Lung
Interventions
calcitriol + docetaxel
Drug
Lead sponsor
Novacea
Industry
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
11
States / cities
Berkeley, California • Vallejo, California • Denver, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated May 7, 2007 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Changes in Biomarkers Using Prostaglandin Inhibitors

NCT01769625
View directory record Official record
Conditions
Biomarker Change Linked to Breast Cancer
Interventions
placebo/celecoxib 400 mg and cholecalciferol 400 IU/cholecalciferol 2,000 IU
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Changes in Breast Cancer Biomarkers Using Synergistic Prostaglandin Inhibitors

NCT01425476
View directory record Official record
Conditions
Breast Cancer
Interventions
Celecoxib, Placebo, Cholecalciferol
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2016
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 9, 2017 · Synced Oct 7, 2026, 11:03 PM EDT
Active, not recruiting Phase 2 Interventional

RANKL Inhibition and Mammographic Breast Density

NCT04067726
View directory record Official record
Conditions
Dense Breasts
Interventions
Denosumab, Placebo, Calcium, Vitamin D3, Core needle biopsy, Blood draw
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
40 Years and older · Female only
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Not applicable Interventional

Effects of Vitamin D Supplementation on Lung Function in an Acute Pulmonary Exacerbation of Cystic Fibrosis

NCT00788138
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Vitamin D3, Placebo
Dietary Supplement
Lead sponsor
Emory University
Other
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 11, 2010 · Synced Oct 7, 2026, 11:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Biomarker Identification in Orthopaedic & Oral Maxillofacial Surgery Subjects to Identify Risks of Bisphosphonate Use

NCT01875458
View directory record Official record
Conditions
Osteoporosis, With or Without Treatment, Bisphosphonate Treatment, Atypical Femur Fracture, Bisphosphonate Related Osteonecrosis of the Jaws (BRONJ), Healthy Volunteers
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
314 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 13, 2023 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Vitamin D Levels in the Skin of Healthy Subjects After Oral Supplementation

NCT01447355
View directory record Official record
Conditions
Healthy, no Evidence of Disease, Skin Cancer
Interventions
cholecalciferol
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
40 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 8, 2014 · Synced Oct 7, 2026, 11:03 PM EDT
Not listed Phase 3 Interventional

High Dose Interval Vitamin D Supplementation in Patients With IBD Receiving Remicade

NCT03162432
View directory record Official record
Conditions
IBD, Ulcerative Colitis, Crohn Disease
Interventions
Vitamin D3
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
7 Years to 25 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 10, 2023 · Synced Oct 7, 2026, 11:03 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Preventing Health Disparities During Pregnancy Through Vitamin D Supplementation

NCT01932788
View directory record Official record
Conditions
Vitamin D3 Deficiency
Interventions
Vitamin D3 4000 IU in gummy form, Placebo gummy vitamin
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
342 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 21, 2018 · Synced Oct 7, 2026, 11:03 PM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers Results available

Vitamin D and Omega-3 Trial (VITAL)

NCT01169259
View directory record Official record
Conditions
Cancer, Cardiovascular Disease
Interventions
vitamin D3, omega-3 fatty acids (fish oil), Vitamin D3 placebo, Fish oil placebo
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
25,871 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 7, 2026, 11:03 PM EDT
Terminated Not applicable Interventional

Vitamin D Supplement in Preventing Colon Cancer in African Americans With Colon Polyps

NCT00870961
View directory record Official record
Conditions
Colorectal Cancer, Precancerous Condition
Interventions
cholecalciferol, placebo
Dietary Supplement · Other
Lead sponsor
Northwestern University
Other
Eligibility
50 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 16, 2013 · Synced Oct 7, 2026, 11:03 PM EDT