Calcium/Vitamin D, Biomarkers & Colon Polyp Prevention
Public ClinicalTrials.gov record NCT00399607. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Study identification
- NCT ID
- NCT00399607
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Lead sponsor
- Emory University
- Other
- Enrollment
- 264 participants
Conditions and interventions
Conditions
Interventions
- Rectal biopsy during colonoscopy Procedure
- Rectal biopsy at randomization Procedure
- Rectal biopsy at 1 year Procedure
- Rectal biopsy prior to colonoscopy Procedure
- Biopsies during colonoscopy Procedure
Procedure
Eligibility (public fields only)
- Age range
- 45 Years to 75 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 31, 2006
- Primary completion
- Jan 31, 2016
- Completion
- Jul 31, 2016
- Last update posted
- Dec 7, 2016
2006 – 2016
United States locations
- U.S. sites
- 9
- U.S. states
- 9
- U.S. cities
- 9
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| USC/Norris Comprehensice Cancer Center | Los Angeles | California | 90089 | — |
| University of Colorado Health Sciences Center | Denver | Colorado | 80220 | — |
| Emory University | Atlanta | Georgia | 30322 | — |
| University of Iowa Hospitals & Clinic | Iowa City | Iowa | 52242 | — |
| University of Minnesota | Minneapolis | Minnesota | 55455 | — |
| Dartmouth-Hitchcock Medical Center | Lebanon | New Hampshire | 03756 | — |
| University of North Carolina | Chapel Hill | North Carolina | 27599 | — |
| Cleveland Clinic Foundation | Cleveland | Ohio | 44195 | — |
| University of South Carolina | West Columbia | South Carolina | 29039 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00399607, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 7, 2016 · Synced Jul 22, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00399607 live on ClinicalTrials.gov.