- Conditions
- Ovarian Cancer, Fallopian Tube Cancer, Primary Peritoneal Cancer
- Interventions
- Arm A: Vitamin D3 Group, Placebo
- Dietary Supplement
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2015
- U.S. locations
- 2
- States / cities
- Chicago, Illinois • Evanston, Illinois
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 come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 121–144
of 553
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Tufts University
- Other
- Eligibility
- 9 Years to 14 Years
- Enrollment
- 691 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- 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
- Conditions
- Chronic Kidney Diseases, Deficiency, Vitamin D
- Interventions
- Cholecalciferol
- Dietary Supplement
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2019
- U.S. locations
- 2
- States / cities
- Aurora, Colorado • Pittsburgh, Pennsylvania
- Conditions
- Cocaine Use Disorder
- Interventions
- Calcitriol, Placebo
- Drug · Other
- Lead sponsor
- Yale University
- Other
- Eligibility
- 30 Years to 55 Years
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2020
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Respiratory Infection
- Interventions
- Vitamin D3 (cholecalciferol), Placebo Sugar Pill
- Dietary Supplement
- Lead sponsor
- University of Iowa
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 98 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2010
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
- Conditions
- Asthma
- Interventions
- Vitamin D3, Ciclesonide
- Drug
- Lead sponsor
- Milton S. Hershey Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 408 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 16
- States / cities
- San Francisco, California • Denver, Colorado • Atlanta, Georgia + 10 more
- Conditions
- SARS-CoV-2 Infection
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- University of Chicago
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1,475 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2024
- U.S. locations
- 2
- States / cities
- Chicago, Illinois
- Conditions
- Bacterial Vaginosis
- Interventions
- Vitamin D3 (cholecalciferol), Placebo
- Dietary Supplement
- Lead sponsor
- Ohio State University
- Other
- Eligibility
- 18 Years to 50 Years · Female only
- Enrollment
- 118 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2013
- U.S. locations
- 1
- States / cities
- Columbus, Ohio
- Conditions
- Obesity, Rhinitis, Rhinitis, Allergic, Respiratory Sounds, Dyspnea, Headache, Migraine Disorders, Arthritis, Arthralgia, Anxiety, Sleep Initiation and Maintenance Disorders, Sleep Deprivation
- Interventions
- Vitamin A, Vitamin B6, Vitamin C, Nicotinamide, Vitamin D3, Vitamin E, Broccoli, Spinach, Caffeine, Coffee, Axon Eyewear, Chocolate
- Dietary Supplement · Other · Device
- Lead sponsor
- Verifomics LLC
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016
- U.S. locations
- 1
- States / cities
- Dallas, Texas
- Conditions
- Precursor Cell Lymphoblastic Leukemia-Lymphoma, Vitamin D Deficiency
- Interventions
- Vitamin D and Calcium Citrate
- Dietary Supplement
- Lead sponsor
- Children's Hospital Los Angeles
- Other
- Eligibility
- 10 Years to 29 Years
- Enrollment
- 76 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2016
- U.S. locations
- 1
- States / cities
- Los Angeles, California
- Conditions
- Healthy, no Evidence of Disease
- Interventions
- cholecalciferol, questionnaire administration, trivalent influenza vaccine
- Dietary Supplement · Other · Biological
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 11 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Breast Cancer
- Interventions
- High Dose Vitamin D, Placebo, Standard Dose Vitamin D3, Letrozole 2.5mg
- Dietary Supplement · Drug
- Lead sponsor
- Qamar Khan
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 160 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 2
- States / cities
- Westwood, Kansas • Wichita, Kansas
- Conditions
- Physical Function, Vitamin D Insufficiency
- Interventions
- calcium, Vitamin D plus calcium
- Dietary Supplement
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 70 Years to 89 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- Conditions
- Vitamin D Deficiency
- Interventions
- Cholecalciferol
- Dietary Supplement
- Lead sponsor
- Children's Hospital of Philadelphia
- Other
- Eligibility
- 12 Years to 17 Years
- Enrollment
- 39 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Pulmonary Disease, Chronic Obstructive
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- University of North Carolina, Chapel Hill
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 23 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2020
- U.S. locations
- 2
- States / cities
- Baltimore, Maryland • Chapel Hill, North Carolina
- Conditions
- Chronic Kidney Disease Stage 3 and 4
- Interventions
- Ergocalciferol, Cholecalciferol
- Drug
- Lead sponsor
- The Cleveland Clinic
- Other
- Eligibility
- 18 Years to 99 Years
- Enrollment
- 19 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Cleveland, Ohio
- Conditions
- Hypocalcemia, Rickets
- Interventions
- 1,25-Dihydroxycholecalciferol
- Drug
- Lead sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- NIH
- Eligibility
- Not listed
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1976 – 2009
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Vitamin D Deficiency
- Interventions
- 400 IU vitamin D3, 2000 IU vitamin D3
- Dietary Supplement
- Lead sponsor
- Boston University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 11 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Sickle Cell Disease
- Interventions
- Vitamin D, Placebo
- Drug · Other
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 7 Years to 21 Years
- Enrollment
- 46 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2013
- U.S. locations
- 1
- States / cities
- Atlanta, Georgia
- Conditions
- Chronic Kidney Disease, Kidney Transplantation
- Interventions
- Doxercalciferol, placebo, 25-OH Vitamin D3
- Drug
- Lead sponsor
- Mariana Markell
- Other
- Eligibility
- 18 Years to 65 Years
- Enrollment
- 39 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2010
- U.S. locations
- 1
- States / cities
- Brooklyn, New York
- Conditions
- X-linked Hypophosphatemia, Hypophosphatemic Rickets, Hypophosphatemic Rickets, X-Linked Dominant
- Interventions
- Calcitriol
- Drug
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 3 Years to 70 Years
- Enrollment
- 16 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2026
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Vitamin D, Prematurity
- Interventions
- Vitamin D3, vitamin D3 placebo
- Dietary Supplement
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 5 Minutes to 3 Months
- Enrollment
- 64 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2010
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Schizophrenia, Schizoaffective Disorder
- Interventions
- Cholecalciferol, Placebo
- Drug
- Lead sponsor
- NYU Langone Health
- Other
- Eligibility
- 18 Years to 65 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2015
- U.S. locations
- 1
- States / cities
- New York, New York