- Conditions
- Chronic Kidney Disease, Secondary Hyperparathyroidism, Vitamin D Insufficiency
- Interventions
- Cohort 1 CTAP101 Capsules- 60µg, Cohort 1 CTAP101 Capsules - 90µg, Cohort 1 Matching Sugar Capsule, Cohort 2 CTAP101 Capsules - 30µg, Cohort 2 Matching Sugar Capsule
- Drug
- Lead sponsor
- OPKO Health, Inc.
- Industry
- Eligibility
- 18 Years to 85 Years
- Enrollment
- 78 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Bannockburn, 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 625–648
of 960
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Infertility, Vitamin D Deficiency
- Interventions
- Not listed
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 18 Years to 38 Years · Female only
- Enrollment
- 102 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 3
- States / cities
- Chicago, Illinois
- Conditions
- Impaired Fasting Glucose, Impaired Glucose Tolerance, Vitamin D Insufficiency
- Interventions
- Placebo, 50K vitamin D2
- Drug
- Lead sponsor
- US Department of Veterans Affairs
- Federal
- Eligibility
- 35 Years to 85 Years · Male only
- Enrollment
- 205 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2014
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Non-Hodgkin's Lymphoma, Lymphoma
- Interventions
- Zoledronic Acid, Vitamin D, Calcium Carbonate
- Drug
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 135 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2011
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Cancer, Cardiovascular Disease
- Interventions
- vitamin D3, omega-3 fatty acids (fish oil), Vitamin D3 placebo, Fish oil placebo
- Dietary Supplement · Drug
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 25,871 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2031
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Short Segment Barrett's Esophagus, Long Segment Barrett's Esophagus
- Interventions
- Omeprazole, Vitamin D3, upper endoscopy, Metformin
- Drug · Procedure
- Lead sponsor
- Case Comprehensive Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 26 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2016
- U.S. locations
- 3
- States / cities
- Beachwood, Ohio • Cleveland, Ohio
- Conditions
- Melanoma
- Interventions
- Not listed
- Lead sponsor
- New Mexico Cancer Research Alliance
- Other
- Eligibility
- 18 Years to 95 Years
- Enrollment
- 100 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2013
- U.S. locations
- 2
- States / cities
- Albuquerque, New Mexico
- Conditions
- Obesity
- Interventions
- Drisdol (Ergocalciferol) Vitamin D2, Placebo
- Drug
- Lead sponsor
- Stanford University
- Other
- Eligibility
- 11 Years to 17 Years
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2012
- U.S. locations
- 1
- States / cities
- Stanford, California
- Conditions
- Benign Breast Disease
- Interventions
- Vitamin D and fish oil placebo, Fish oil and vitamin D placebo, Vitamin D placebo and fish oil placebo, Vitamin D and fish oil
- Dietary Supplement
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 55 Years to 67 Years · Female only
- Enrollment
- 3,894 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2023
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- 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
- Solid Cancers
- Interventions
- Grape Seed Extract, Vitamin D
- Drug
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 22 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2016
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- Osteoporosis, Postmenopausal
- Interventions
- Hesperidin and Calcilock, Hesperidin, Control
- Dietary Supplement
- Lead sponsor
- Purdue University
- Other
- Eligibility
- Female only
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2012
- U.S. locations
- 1
- States / cities
- West Lafayette, Indiana
- Conditions
- Obesity
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 12 Years to 18 Years
- Enrollment
- 51 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Rochester, Minnesota
- Conditions
- Vitamin D Deficiency, Hypertension
- Interventions
- Aliskiren, Cholecalciferol, Placebo
- Drug · Dietary Supplement
- Lead sponsor
- UConn Health
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Farmington, Connecticut
- Conditions
- Breast Cancer, Prostate Cancer, Bone Neoplasms, Hypocalcemia, Hyperparathyroidism, Secondary
- Interventions
- CTAP101 Capsules
- Drug
- Lead sponsor
- OPKO Health, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 33 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2017
- U.S. locations
- 6
- States / cities
- Long Beach, California • Miami, Florida • Evergreen Park, Illinois + 3 more
- Conditions
- Hypertension, Vitamin D Deficiency
- Interventions
- calcitriol, Placebo
- Drug
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 55 Years and older
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2008
- U.S. locations
- 1
- States / cities
- Salt Lake City, Utah
- Conditions
- Urticaria
- Interventions
- Vitamin D (4,000 IU/day), Vitamin D (400 IU/day), Omalizumab
- Dietary Supplement · Drug
- Lead sponsor
- Selina Gierer, D.O.
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2019
- U.S. locations
- 1
- States / cities
- Kansas City, Kansas
- Conditions
- Age-Related Osteoporosis
- Interventions
- Teriparatide, Alendronate
- Drug
- Lead sponsor
- Madhumathi Rao
- Other
- Eligibility
- 40 Years and older
- Enrollment
- 60 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2027
- U.S. locations
- 1
- States / cities
- Lexington, Kentucky
- Conditions
- Thyroid Cancer
- Interventions
- Not listed
- Lead sponsor
- University of Nebraska
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 111 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2009
- U.S. locations
- 1
- States / cities
- Omaha, Nebraska
- Conditions
- Chronic Kidney Disease
- Interventions
- Vitamin D3
- Drug
- Lead sponsor
- Rockefeller University
- Other
- Eligibility
- 50 Years to 80 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2009
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Vitamin D Deficiency, Accidental Falls
- Interventions
- Vitamin D3, Vitamin E
- Dietary Supplement
- Lead sponsor
- Wake Forest University Health Sciences
- Other
- Eligibility
- 65 Years and older
- Enrollment
- 68 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2011
- U.S. locations
- 1
- States / cities
- Winston-Salem, North Carolina
- Conditions
- Bone Density, Body Composition, Bone Health
- Interventions
- Vitamin D3 placebo, Fish oil placebo, omega-3 fatty acids (fish oil), Vitamin D3
- Dietary Supplement
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 771 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2012 – 2023
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Rheumatoid Arthritis, Vitamin D Deficiency
- Interventions
- Placebo sugar pill, Ergocalciferol
- Drug
- Lead sponsor
- Johns Hopkins University
- Other
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 139 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2012
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Mineral Absorption
- Interventions
- Vitamin D
- Dietary Supplement
- Lead sponsor
- Baylor College of Medicine
- Other
- Eligibility
- 4 Years to 8 Years
- Enrollment
- 60 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2011
- U.S. locations
- 1
- States / cities
- Houston, Texas