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COMPLETED Phase 2

Calcium and Vitamin D vs Markers of Adenomatous Polyps

NCT00208793 · View on ClinicalTrials.gov ↗

Study Summary

The purpose of this study is to test whether calcium and/or vitamin D supplementation favorably affects a set of biomarkers of risk for colon cancer in persons who are at higher than average risk for colon cancer (ie, have already undergone the removal of adenomatous polyps, which are known to be precursors to developing colon cancer).

Interventions

  • DRUG Placebo
  • DIETARY_SUPPLEMENT Vitamin D3
  • DIETARY_SUPPLEMENT Calcium and vitamin D3 combined
  • DIETARY_SUPPLEMENT Calcium

Study Locations (1)

Georgia

  • The Emory Clinic, Division of Digestive Diseases — Atlanta

Trial Details

FieldValue
Enrollment Target 92 participants
Start Date 2005-05
Est. Completion 2013-02
Phase Phase 2

Sponsor

Emory University

1,434 total trials

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Full Details on ClinicalTrials.gov ↗

What the Registry Record Tells You About NCT00208793

The ClinicalTrials.gov registry entry for NCT00208793 describes a study currently listed as completed. It is categorized as Phase 2, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 92 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Emory University, which has 1,434 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.

The record links to 1 condition, with Colorectal Adenomatous Polyps appearing as the primary indexed condition, and to 4 interventions — of which Placebo is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.

Geographic footprint matters for practical reasons: NCT00208793 reports 1 study location spanning 1 distinct geographic area — top geographies include Georgia. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.

Frequently Asked Questions

What is clinical trial NCT00208793 about?

NCT00208793 is a clinical study titled "Calcium and Vitamin D vs Markers of Adenomatous Polyps". The purpose of this study is to test whether calcium and/or vitamin D supplementation favorably affects a set of biomarkers of risk for colon cancer in persons who are at higher than average risk for colon cancer (ie, have already undergone the removal of adenomatous polyps, which are known to be pr...

What is the current status of trial NCT00208793?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 92 participants. The study started on 2005-05. Estimated completion is 2013-02.

What conditions does trial NCT00208793 study?

This clinical trial studies the following conditions: Colorectal Adenomatous Polyps. These conditions were identified from the trial registry and reflect the primary focus areas of the research.

What interventions are being tested in trial NCT00208793?

The interventions under investigation include: Placebo (DRUG), Vitamin D3 (DIETARY_SUPPLEMENT), Calcium and vitamin D3 combined (DIETARY_SUPPLEMENT), Calcium (DIETARY_SUPPLEMENT). Each intervention is being evaluated for safety and efficacy as part of this clinical study.

Who is sponsoring clinical trial NCT00208793?

This trial is sponsored by Emory University, which has 1,434 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.

Where is trial NCT00208793 being conducted?

This trial has 1 study location across Georgia. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial