- Conditions
- Vitamin B 12 Deficiency
- Interventions
- Cyanocobalamin, Placebo
- Drug
- Lead sponsor
- University of Southern California
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- Los Angeles, California
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 1–24
of 559
matching trials from the live ClinicalTrials.gov search.
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- Conditions
- Atopic Dermatitis, Vitamin D Deficiency
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Milwaukee, Wisconsin
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Montefiore Medical Center
- Other
- Eligibility
- 13 Years to 20 Years
- Enrollment
- 183 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2014
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- Leg Cramps, Nocturnal
- Interventions
- vitamin d, placebo
- Drug
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 29 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2011
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin
- Conditions
- Irritable Bowel Syndrome, Vitamin D Deficiency, Abdominal Pain
- Interventions
- Vitamin D, placebo
- Dietary Supplement
- Lead sponsor
- Beth Israel Deaconess Medical Center
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Poor Nutrition
- Interventions
- Adding spices and herbs to school lunch vegetables
- Other
- Lead sponsor
- University of Maryland, Baltimore
- Other
- Eligibility
- 12 Years to 21 Years
- Enrollment
- 29 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2017
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Nutritional Deficiency
- Interventions
- Study 1: Whey Supplement Day 1, Study 1: Whey Supplement Day 2, Study 2: Whey Supplement
- Dietary Supplement
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 2 Years to 3 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2018
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- Conditions
- Vitamin D Deficiency, Short Bowel Syndrome
- Interventions
- Ultraviolet B lamp
- Device
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 11 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2015
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Hypophosphatasia (HPP)
- Interventions
- Not listed
- Lead sponsor
- Alexion Pharmaceuticals, Inc.
- Industry
- Eligibility
- 5 Years and older
- Enrollment
- 32 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014
- U.S. locations
- 9
- States / cities
- Atlanta, Georgia • Indianapolis, Indiana • Boston, Massachusetts + 6 more
- Conditions
- Renal Osteodystrophy
- Interventions
- doxercalciferol, Cholecalciferol
- Drug
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 18 Years to 82 Years
- Enrollment
- 55 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2009
- U.S. locations
- 1
- States / cities
- Indianapolis, Indiana
- Conditions
- Pulmonary Arterial Hypertension, Familial Primary Pulmonary Hypertension, Primary Pulmonary Hypertension, Lung Diseases, Carnitine Nutritional Deficiency
- Interventions
- L-carnitine
- Dietary Supplement
- Lead sponsor
- Vanderbilt University Medical Center
- Other
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2023
- U.S. locations
- 1
- States / cities
- Nashville, Tennessee
- Conditions
- Aging
- Interventions
- Not listed
- Lead sponsor
- US Department of Veterans Affairs
- Federal
- Eligibility
- 64 Years and older
- Enrollment
- 446 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2012
- U.S. locations
- 1
- States / cities
- No. Little Rock, Arkansas
- Conditions
- Vitamin D Deficiency, Burns
- Interventions
- Ergocalciferol Capsules
- Drug
- Lead sponsor
- University of Texas Southwestern Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 48 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2025
- U.S. locations
- 1
- States / cities
- Dallas, Texas
- Conditions
- Cancer, Food Deprivation, Food Habits, Food Selection, Colorectal Cancer, Prostate Cancer, Lung Cancer, Breast Cancer, Gynecologic Cancer, Hematologic Cancer, Skin Cancer, Melanoma, Nutrition Poor, Nutritional Deficiency
- Interventions
- MyCarePulse and ASCENT PN
- Behavioral
- Lead sponsor
- University of Florida
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Gainesville, Florida
- Conditions
- Asthma, Vitamin D Deficiency, Pediatric Obesity
- Interventions
- Vitamin D3 oral regimen
- Dietary Supplement
- Lead sponsor
- IDeA States Pediatric Clinical Trials Network
- Network
- Eligibility
- 6 Years to 17 Years
- Enrollment
- 112 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 15
- States / cities
- Little Rock, Arkansas • Wilmington, Delaware • Honolulu, Hawaii + 12 more
- Conditions
- Vitamin D Deficiency
- Interventions
- 400 IU Vitamin D3 (cholecalciferol), 2400 IU Vitamin D3 (cholecalciferol), 6400 IU Vitamin D3 (cholecalciferol)
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 460 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2012
- U.S. locations
- 2
- States / cities
- Rochester, New York • Charleston, South Carolina
- Conditions
- Vitamin D Deficiency, Type 2 Diabetes Mellitus, Cardiovascular Disease
- Interventions
- Vitamin D3, Calcium carbonate
- Dietary Supplement
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 50 Years to 70 Years
- Enrollment
- 86 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2018
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- Hepatitis C Infection, Vitamin D Deficiency
- Interventions
- Vitamin D, Placebo
- Drug
- Lead sponsor
- Veterans Medical Research Foundation
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- La Jolla, California
- Conditions
- Polycystic Ovary Syndrome, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Maimonides Medical Center
- Other
- Eligibility
- 16 Years to 48 Years · Female only
- Enrollment
- 79 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Brooklyn, New York
- Conditions
- COVID-19
- Interventions
- Q-NRG Metobolic Cart Device, MuscleSound Ultrasound, Multifrequency Bioimpedance Spectroscopy
- Device
- Lead sponsor
- Duke University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 65 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2022
- U.S. locations
- 1
- States / cities
- Durham, North Carolina
- Conditions
- X-linked Hypophosphatemia
- Interventions
- burosumab
- Biological
- Lead sponsor
- Kyowa Kirin, Inc.
- Industry
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 14 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2018
- U.S. locations
- 5
- States / cities
- San Francisco, California • New Haven, Connecticut • Indianapolis, Indiana + 2 more
- Conditions
- Non Alcoholic Fatty Liver
- Interventions
- Omega-3, Olive oil
- Dietary Supplement
- Lead sponsor
- Pronova BioPharma
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 172 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2017
- U.S. locations
- 7
- States / cities
- Hialeah, Florida • Lake Worth, Florida • Lauderdale Lakes, Florida + 3 more
- Conditions
- Acute Respiratory Failure With Hypoxia, Malnutrition
- Interventions
- Parenteral Nutrition
- Drug
- Lead sponsor
- University of Arizona
- Other
- Eligibility
- 1 Month to 16 Years
- Enrollment
- 18 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2018
- U.S. locations
- 1
- States / cities
- Tucson, Arizona
- Conditions
- Cardiovascular Diseases, Vitamin D Deficiency
- Interventions
- Vitamin D3, Placebo
- Dietary Supplement
- Lead sponsor
- University of Wisconsin, Madison
- Other
- Eligibility
- 55 Years to 65 Years · Female only
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2010
- U.S. locations
- 1
- States / cities
- Madison, Wisconsin