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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Prostate Adenocarcinoma
Interventions
Cholecalciferol, Laboratory Biomarker Analysis, Patient Observation, Placebo Administration, Quality-of-Life Assessment, Questionnaire Administration
Dietary Supplement · Other · Drug
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older · Male only
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2020
U.S. locations
1
States / cities
Buffalo, New York
Completed Not applicable Interventional Accepts healthy volunteers

Improving Community Ambulation After Hip Fracture

NCT01783704
Conditions
Hip Fracture
Interventions
Nutrition, PUSH, PULSE
Dietary Supplement · Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
60 Years and older
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
4
States / cities
Farmington, Connecticut • Baltimore, Maryland • Lebanon, New Hampshire + 1 more
Conditions
Advanced Hepatocellular Carcinoma, Advanced Melanoma, Locally Advanced Melanoma, Metastatic Melanoma, Stage III Hepatocellular Carcinoma AJCC v8, Stage IV Hepatocellular Carcinoma AJCC v8
Interventions
Biospecimen Collection, Cholecalciferol, Computed Tomography, Desloratadine, Immunotherapy, Infusion Procedure, Magnesium Sulfate, Magnetic Resonance Imaging, Propranolol
Procedure · Dietary Supplement · Drug + 1 more
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Carcinoma, Transitional Cell, Bladder Cancer, Bladder Neoplasm
Interventions
Pralatrexate Injection, Vitamin B12, Folic Acid
Drug · Dietary Supplement
Lead sponsor
Acrotech Biopharma Inc.
Industry
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
4
States / cities
Tucson, Arizona • Atlanta, Georgia • Rochester, New York + 1 more
Conditions
Pyruvate Kinase Deficiency, Glucose 6 Phosphate Dehydrogenase Deficiency
Interventions
Vitamin C
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Salt Lake City, Utah
Conditions
Cervical Squamous Cell Carcinoma In Situ, Vulvar High Grade Squamous Intraepithelial Lesion
Interventions
Cyclophosphamide, Indomethacin, IRX-2, Laboratory Biomarker Analysis, Multivitamin, Omeprazole, Placebo, Therapeutic Conventional Surgery
Drug · Biological · Other + 2 more
Lead sponsor
University of Southern California
Other
Eligibility
25 Years and older · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
2
States / cities
Los Angeles, California • Oklahoma City, Oklahoma
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin D Supplementation in Warfighters

NCT02954549
Conditions
Vitamin D Deficiency Disease
Interventions
Vitamin D3
Dietary Supplement
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years and older
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Tacoma, Washington
Conditions
Keratolysis
Interventions
Riboflavin, Dextran, UVA Light Source
Drug · Device
Lead sponsor
Joseph B. Ciolino, MD
Other
Eligibility
18 Years and older
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
13
States / cities
Los Angeles, California • Sacramento, California • San Diego, California + 10 more
Completed Not applicable Interventional Accepts healthy volunteers

Natural Product System and Lifestyle Modification

NCT06931977
Conditions
Healthy
Interventions
Supplement system + copaiba softgels, Supplement system + placebo softgels
Dietary Supplement
Lead sponsor
dōTERRA International
Industry
Eligibility
30 Years to 55 Years
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Pleasant Grove, Utah
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Vitamin D Status on Bones in Breastfed Infants

NCT00697294
Conditions
Vitamin D Deficiency
Interventions
Tri-Vi-Sol
Dietary Supplement
Lead sponsor
Baylor College of Medicine
Other
Eligibility
Up to 2 Hours
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
3
States / cities
Houston, Texas
Conditions
Cardiovascular Risk Factor
Interventions
Multicomponent Virtual Lifestyle Intervention
Behavioral
Lead sponsor
Truemedicine Inc
Other
Eligibility
30 Years to 60 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Completed Phase 1 Interventional Accepts healthy volunteers

Vitamin D Levels Following Topical Application of Vitamin D Ointment

NCT02676674
Conditions
Vitamin D Deficiency
Interventions
Dose 1, Dose 2
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Saint Paul, Minnesota
Conditions
Cancer
Interventions
Structured perioperative nutrition and exercise, Nutrition and Exercise Counseling
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
55 Years and older
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Venous Thromboembolism, Metastatic Pancreatic Cancer, Locally Advanced Pancreatic Adenocarcinoma
Interventions
Kinisoquin™, Placebo
Drug
Lead sponsor
Quercis Pharma AG
Industry
Eligibility
18 Years and older
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
Ventura, California • Miami Lakes, Florida • Boston, Massachusetts
Conditions
Nonalcoholic Steatohepatitis
Interventions
pioglitazone-placebo, pioglitazone, Vitamin E, Vitamin E-placebo
Drug · Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 70 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
2
States / cities
Gainesville, Florida • San Antonio, Texas
Conditions
Leukemia
Interventions
mercaptopurine, methotrexate, tretinoin
Drug
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years to 120 Years
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
210
States / cities
Scottsdale, Arizona • Roseville, California • Sacramento, California + 135 more
Completed Not applicable Interventional Results available

Impact of Vitamin D Therapies on Chronic Kidney Disease

NCT01222234
Conditions
Chronic Kidney Disease (CKD), End-stage Renal Disease (ESRD)
Interventions
Cholecalciferol - CKD, Calcitriol - CKD, Cholecalciferol - non-CKD
Drug · Device
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
21 Years to 90 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Kansas City, Kansas
Terminated Not applicable Interventional Results available

Low Dose Niacin (Vitamin B3) for Parkinson's Disease

NCT03808961
Conditions
Parkinson's Disease
Interventions
Niacin, Niacinamide, Placebo
Dietary Supplement · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
35 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Augusta, Georgia
Conditions
Pulmonary Hypertension
Interventions
Warfarin, Placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
16 Years to 65 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Pancreatic Cancer, Pancreas Cancer, Cancer of the Pancreas
Interventions
5-FU, Leucovorin, Liposomal Irinotecan, Paricalcitol, Serum and plasma blood samples, Tumor biopsy
Drug · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Relapsing-Remitting Multiple Sclerosis
Interventions
Midazolam, Caffeine, S-warfarin, Vitamin K, Omeprazole, Dextromethorphan, BIIB019 (Daclizumab)
Drug · Other · Biological
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 65 Years
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
7
States / cities
Centennial, Colorado • Washington D.C., District of Columbia • Lake Barrington, Illinois + 4 more
Conditions
Mouth Neoplasms
Interventions
Celecoxib, Calcitriol, Celecoxib plus Calcitriol
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 85 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Charleston, South Carolina
Completed Not applicable Interventional Accepts healthy volunteers

Folic Acid Supplementation in Pregnant Women: Dose Response

NCT02124642
Conditions
Pregnancy
Interventions
Folic acid, 400 mcg/day, Folic acid 800 mcg/day
Dietary Supplement
Lead sponsor
University of Georgia
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Athens, Georgia
Conditions
Arthritis, Rheumatoid, Vitamin D Deficiency
Interventions
Placebo in arm A and Vitamin D in arm B, vitamin D 3 for arm A ,and matching placebo for arm B
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana