- 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
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 193–216
of 549
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
- Interventions
- CTAP101 30 μg capsules, Sugar pill to CTAP101 30 μg capsules
- Drug · Other
- Lead sponsor
- OPKO IP Holdings II, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 216 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 1
- States / cities
- Bannockburn, Illinois
- Conditions
- Osteoporosis, Osteopenia
- Interventions
- Fiber Pill, Melatonin, Strontium citrate, Vitamins D3 and K2
- Dietary Supplement
- Lead sponsor
- Duquesne University
- Other
- Eligibility
- Female only
- Enrollment
- 23 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2013 – 2017
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Acute Stress Reaction
- Interventions
- Vitamin D3 (Cholecalciferol), Oral Placebo Tablet
- Dietary Supplement
- Lead sponsor
- Walter Reed Army Institute of Research (WRAIR)
- Federal
- Eligibility
- 18 Years to 40 Years
- Enrollment
- 52 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Silver Spring, Maryland
- Conditions
- COVID-19, Coronavirus, SARS-CoV2 Infection
- Interventions
- Rayaldee, Placebo
- Drug
- Lead sponsor
- OPKO Health, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 171 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2021
- U.S. locations
- 10
- States / cities
- San Francisco, California • Miami, Florida • Evanston, Illinois + 6 more
- Conditions
- Sickle Cell Disease
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Gary M Brittenham, MD
- Other
- Eligibility
- 3 Years to 20 Years
- Enrollment
- 4 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Muscle Power
- Interventions
- Vitamin D, Placebo
- Dietary Supplement
- Lead sponsor
- Oklahoma State University
- Other
- Eligibility
- 18 Years to 35 Years
- Enrollment
- 103 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2013
- U.S. locations
- 1
- States / cities
- Stillwater, Oklahoma
- Conditions
- Dry Eye Syndrome
- Interventions
- Omega 3, Vitamins A, D3 and E
- Dietary Supplement
- Lead sponsor
- Eye and Vision Technologies and Research Institute
- Network
- Eligibility
- 18 Years to 79 Years
- Enrollment
- 80 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012
- U.S. locations
- 4
- States / cities
- Conifer, Colorado • Oak Lawn, Illinois • Lexington, Kentucky + 1 more
- Conditions
- Chronic Obstructive Pulmonary Disease (COPD)
- Interventions
- Vitamin D (cholecalciferol), Placebo
- Dietary Supplement
- Lead sponsor
- Minneapolis Veterans Affairs Medical Center
- Federal
- Eligibility
- 40 Years and older
- Enrollment
- 39 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Known or Suspected Focal Liver Lesions, Severe Renal Impairment
- Interventions
- Mangoral
- Drug
- Lead sponsor
- Ascelia Pharma AB
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 87 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2023
- U.S. locations
- 14
- States / cities
- Scottsdale, Arizona • Los Angeles, California • Stanford, California + 10 more
- 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
- Conditions
- Prostate Adenocarcinoma, Stage I Prostate Cancer, Stage IIA Prostate Cancer, Stage IIB Prostate Cancer
- Interventions
- Cholecalciferol, Genistein, Laboratory Biomarker Analysis, Pharmacological Study, Placebo
- Drug · Other
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 18 Years and older · Male only
- Enrollment
- 15 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 11
- States / cities
- Birmingham, Alabama • Baltimore, Maryland • Burlington, Massachusetts + 6 more
- Conditions
- Hypoparathyroidism
- Interventions
- Synthetic Human Parathyroid Hormone 1-34, Calcitriol & Calcium
- Drug
- Lead sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- NIH
- Eligibility
- 17 Years to 69 Years
- Enrollment
- 27 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1991 – 2014
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Renal Dialysis, Vitamin D Deficiency
- Interventions
- Cholecalciferol (Vitamin D)
- Dietary Supplement
- Lead sponsor
- VA Office of Research and Development
- Federal
- Eligibility
- 45 Years to 89 Years
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2022
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- HIV Infection, Bone Mass
- Interventions
- cholecalciferol plus calcium carbonate
- Dietary Supplement
- Lead sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- NIH
- Eligibility
- 6 Years to 16 Years
- Enrollment
- 59 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2006
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Type 2 Diabetes Mellitus
- Interventions
- Vitamin D3 2000 international units daily, Vitamin C 500mg daily
- Dietary Supplement
- Lead sponsor
- ProMedica Health System
- Other
- Eligibility
- 21 Years to 75 Years
- Enrollment
- 37 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2010
- U.S. locations
- 3
- States / cities
- Sylvania, Ohio • Toledo, Ohio
- Conditions
- Breast Neoplasms, Bone and Bones
- Interventions
- Calcitriol, Exercise, Multivitamin
- Drug · Behavioral · Dietary Supplement
- Lead sponsor
- University of Rochester
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 41 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2018
- U.S. locations
- 1
- States / cities
- Rochester, New York
- Conditions
- Colorectal Adenocarcinoma
- Interventions
- Bevacizumab, Oxaliplatin, Leucovorin Calcium, Fluorouracil, Irinotecan Hydrochloride, Irinotecan, Cholecalciferol, Quality-of-Life Assessment, Questionnaire Administration
- Drug · Dietary Supplement · Other
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 455 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2027
- U.S. locations
- 1027
- States / cities
- Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 676 more
- Conditions
- Prostate Cancer
- Interventions
- calcitriol, mitoxantrone hydrochloride, prednisone
- Dietary Supplement · Drug
- Lead sponsor
- OHSU Knight Cancer Institute
- Other
- Eligibility
- 18 Years to 100 Years · Male only
- Enrollment
- 19 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2004 – 2006
- U.S. locations
- 1
- States / cities
- Portland, Oregon
- Conditions
- Plaque Psoriasis, Vitamin D3
- Interventions
- Triamcinolone, Vitamin D3, Placebo
- Drug · Dietary Supplement
- Lead sponsor
- Wright State University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2026
- U.S. locations
- 1
- States / cities
- Fairborn, Ohio
- Conditions
- Vitamin D Deficiency, Hematopoietic Stem Cell Transplantation (HSCT)
- Interventions
- Oral Thin Film (OTF) Cholecalciferol (Vitamin D3)
- Dietary Supplement
- Lead sponsor
- Children's Hospital Medical Center, Cincinnati
- Other
- Eligibility
- Not listed
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2022
- U.S. locations
- 1
- States / cities
- Cincinnati, Ohio
- Conditions
- Non Small Cell Lung Cancer
- Interventions
- Calcitriol
- Drug
- Lead sponsor
- University of Michigan Rogel Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 34 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2013
- U.S. locations
- 4
- States / cities
- Ann Arbor, Michigan • Buffalo, New York
- Conditions
- Brain and Central Nervous System Tumors, Unspecified Adult Solid Tumor, Protocol Specific
- Interventions
- calcitriol, carboplatin
- Dietary Supplement · Drug
- Lead sponsor
- University of Pittsburgh
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1996 – 2004
- U.S. locations
- 1
- States / cities
- Pittsburgh, Pennsylvania
- Conditions
- Femoral Neck Fractures
- Interventions
- Sliding Hip Screw, Cancellous Screws, Vitamin D, Vitamin D Placebo
- Procedure · Drug
- Lead sponsor
- McMaster University
- Other
- Eligibility
- 18 Years to 60 Years
- Enrollment
- 91 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2019
- U.S. locations
- 10
- States / cities
- Phoenix, Arizona • San Francisco, California • Gainesville, Florida + 7 more