- Conditions
- Vitamin D 25 OH Deficiency
- Interventions
- Cholecalciferol, Cholecalciferol 5,000 IU
- Dietary Supplement
- Lead sponsor
- University of South Florida
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 56 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Tampa, Florida
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 937–960
of 960
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Obesity, Vitamin D Deficiency, Psychosis, Schizophrenia, Schizoaffective Disorder
- Interventions
- Ergocalciferols
- Drug
- Lead sponsor
- University of Massachusetts, Worcester
- Other
- Eligibility
- 10 Years to 18 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2010
- U.S. locations
- 1
- States / cities
- Worcester, Massachusetts
- Conditions
- Multiple Sclerosis, Vitamin D Deficiency
- Interventions
- Cholecalciferol
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Osteopenia
- Interventions
- Calcium Carbonate, Vitamin D3, Risedronate, Bone-loading exercises
- Drug · Behavioral
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years and older · Female only
- Enrollment
- 276 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2019
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Sepsis, Severe Sepsis, End Organ Damage, Multi Organ Failure
- Interventions
- vitamin D3, Placebo
- Drug
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years to 80 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2022
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Anal Dysplasia, Carcinoma in Situ
- Interventions
- Gliolan, Vitamin D3 cholecalciferol), Photodynamic Therpay
- Drug · Other
- Lead sponsor
- Abramson Cancer Center at Penn Medicine
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2022
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- Vitamin D Deficiency
- Interventions
- Vitamin D2 in orange juice, Vitamin D3 in orange juice, Vitamin D2, Vitamin D3, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Boston University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 86 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2007
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Colorectal Cancer
- Interventions
- cholecalciferol, polymerase chain reaction, polymorphism analysis, protein expression analysis, reverse transcriptase-polymerase chain reaction, western blotting, high performance liquid chromatography, laboratory biomarker analysis, pharmacological study, adjuvant therapy, immunoscintigraphy
- Dietary Supplement · Genetic · Other + 1 more
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years to 120 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2010
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Hypocalcemia, Thyroid Diseases
- Interventions
- Tums, Calcitriol
- Dietary Supplement
- Lead sponsor
- Lahey Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 82 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2019
- U.S. locations
- 1
- States / cities
- Burlington, Massachusetts
- Conditions
- Inflammatory Bowel Disease
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- Penn State University
- Other
- Eligibility
- 18 Years to 70 Years
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 2
- States / cities
- Hershey, Pennsylvania • University Park, Pennsylvania
- Conditions
- Castration-resistant Prostate Cancer
- Interventions
- Calcitriol, Ketoconazole, Hydrocortisone
- Drug
- Lead sponsor
- Donald Trump, MD
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 1 participant
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2018
- U.S. locations
- 1
- States / cities
- Fairfax, Virginia
- Conditions
- Obesity, Pediatric, Obesity, Childhood, Obesity, Morbid, Vitamin D Deficiency
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 5 Years to 11 Years
- Enrollment
- 6 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- New York, New York
- 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
- Conditions
- Hypoparathyroidism
- Interventions
- No intervention
- Other
- Lead sponsor
- Takeda
- Industry
- Eligibility
- Not listed
- Enrollment
- 1,339 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2026
- U.S. locations
- 54
- States / cities
- Birmingham, Alabama • Tucson, Arizona • Los Angeles, California + 42 more
- Conditions
- Seasonal Mood Disorder
- Interventions
- Vitamin D, No Vitamin D
- Dietary Supplement
- Lead sponsor
- Corewell Health South
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 27 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2020
- U.S. locations
- 1
- States / cities
- Saint Joseph, Michigan
- Conditions
- Type 1 Diabetes Mellitus
- Interventions
- Vitamin D
- Drug
- Lead sponsor
- Corewell Health East
- Other
- Eligibility
- 1 Year to 18 Years
- Enrollment
- 75 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Royal Oak, Michigan
- Conditions
- Degenerative Joint Disease, Osteoarthritis
- Interventions
- musculoskeletal
- Other
- Lead sponsor
- Mary O'Connor
- Other
- Eligibility
- 65 Years to 75 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- Jacksonville, Florida
- 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
- Conditions
- Vitamin D Deficiency, Coronary Artery Disease, Endothelial Dysfunction, Inflammation
- Interventions
- Ergocalciferol, Sugar pill
- Drug · Other
- Lead sponsor
- Seth I. Sokol, M.D.
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 96 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2011
- U.S. locations
- 2
- States / cities
- The Bronx, New York
- Conditions
- Healthy Participants
- Interventions
- Influenza virus vaccine, Vitamins A and D, Placebo
- Biological · Dietary Supplement · Other
- Lead sponsor
- St. Jude Children's Research Hospital
- Other
- Eligibility
- 2 Years to 8 Years
- Enrollment
- 87 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2016 – 2018
- U.S. locations
- 1
- States / cities
- Memphis, Tennessee
- 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
- Conditions
- Pancreatic Cancer
- Interventions
- calcitriol, docetaxel
- Dietary Supplement · Drug
- Lead sponsor
- OHSU Knight Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2002 – 2006
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- End Stage Renal Disease
- Interventions
- Ergocalciferol, Placebo
- Drug · Other
- Lead sponsor
- Massachusetts General Hospital
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 105 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2014
- U.S. locations
- 3
- States / cities
- Boston, Massachusetts
- Conditions
- Metastatic Colorectal Cancer
- Interventions
- FOLFOX + bevacizumab, Vitamin D
- Drug · Dietary Supplement
- Lead sponsor
- Dana-Farber Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 139 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2019
- U.S. locations
- 18
- States / cities
- Boise, Idaho • Fruitland, Idaho • Meridian, Idaho + 13 more