- Conditions
- Adenomatous Polyps
- Interventions
- 0.5 mg calcitriol (1a -25-dihydroxycholecalciferol), 75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3), placebo to 0.5 mg calcitriol (1a -25-dihydroxycholecalciferol), placebo to 75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3), Colonoscopy
- Drug · Procedure
- Lead sponsor
- Colotech A/S
- Industry
- Eligibility
- 40 Years to 75 Years
- Enrollment
- 350 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2007 – 2010
- U.S. locations
- 24
- States / cities
- Huntsville, Alabama • San Diego, California • Clearwater, Florida + 20 more
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 25–38
of 38
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Breast Neoplasms
- Interventions
- Vitamin D, Calcium carbonate, Vitamin D, Placebo
- Dietary Supplement · Drug · Other
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 63 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2005 – 2009
- U.S. locations
- 1
- States / cities
- St Louis, Missouri
- Conditions
- HIV Infection
- Interventions
- Alendronate, Placebo, Calcium carbonate/vitamin D
- Drug · Dietary Supplement
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
- NIH
- Eligibility
- 11 Years to 24 Years
- Enrollment
- 52 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2017
- U.S. locations
- 7
- States / cities
- Los Angeles, California • Miami, Florida • Tampa, Florida + 4 more
- Conditions
- Breast Neoplasms
- Interventions
- Exemestane, Calcium carbonate, Vitamin D
- Drug · Dietary Supplement
- Lead sponsor
- Georgetown University
- Other
- Eligibility
- Female only
- Enrollment
- 46 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2011
- U.S. locations
- 2
- States / cities
- Washington D.C., District of Columbia • Bethesda, Maryland
- Conditions
- Risperidone-induced Hyperprolactinemia
- Interventions
- Calcium and Vitamin D, Placebo
- Drug · Other
- Lead sponsor
- Chadi A. Calarge
- Other
- Eligibility
- 5 Years to 17 Years · Male only
- Enrollment
- 47 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2014
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
- Conditions
- Glucose Intolerance, Type 2 Diabetes Mellitus, Metabolic Syndrome
- Interventions
- Vitamin D3 2,000 IU orally once daily, Calcium Carbonate 400 mg orally twice daily, Vitamin D3-Placebo, Calcium-Placebo
- Drug
- Lead sponsor
- Tufts Medical Center
- Other
- Eligibility
- 40 Years and older
- Enrollment
- 92 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2007 – 2009
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Spinal Cord Injury, Bone Loss, Osteoporosis
- Interventions
- Alendronate, Calcium, Vitamin D
- Drug · Dietary Supplement
- Lead sponsor
- Northwestern University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 17 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- Chicago, Illinois
- Conditions
- Colorectal Cancer
- Interventions
- calcium carbonate, cholecalciferol, immunohistochemistry staining method, laboratory biomarker analysis, pharmacological study, biopsy
- Dietary Supplement · Other · Procedure
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- 18 Years to 120 Years
- Enrollment
- 8 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2009
- U.S. locations
- 1
- States / cities
- Buffalo, New York
- Conditions
- Osteopenia, Osteoporosis, Bone Health in Perimenopausal Women, Menopause Related Conditions, Fracture Healing
- Interventions
- 500 mg calcium from milk-derived minerals, Calcium Carbonate 500 MG
- Other · Dietary Supplement
- Lead sponsor
- Cornell University
- Other
- Eligibility
- 40 Years to 90 Years · Female only
- Enrollment
- 217 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Diabetic Kidney Disease
- Interventions
- Vitamin D3
- Dietary Supplement
- Lead sponsor
- Medical University of South Carolina
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 54 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 1
- States / cities
- Charleston, South Carolina
- Conditions
- HIV-1 Infection
- Interventions
- EFV/FTC/TDF, Calcium Carbonate, Vitamin D3, Placebo for calcium carbonate, Placebo for vitamin D3
- Drug
- Lead sponsor
- Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
- Network
- Eligibility
- 18 Years and older
- Enrollment
- 167 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2013
- U.S. locations
- 38
- States / cities
- Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 27 more
- Conditions
- Spinal Cord Injury
- Interventions
- Vitamin D and Calcium
- Dietary Supplement
- Lead sponsor
- US Department of Veterans Affairs
- Federal
- Eligibility
- 18 Years to 75 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2008 – 2012
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- HIV
- Interventions
- Vitamin D3, Placebo, Vitamin Supplements
- Drug · Other
- Lead sponsor
- Columbia University
- Other
- Eligibility
- 40 Years to 70 Years · Female only
- Enrollment
- 85 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2011 – 2016
- U.S. locations
- 1
- States / cities
- New York, New York
- 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