Colorectal Neoplasia Screening w Colonoscopy in Asymptomatic Women at Regional Navy/Army Medical Ctrs: The CONCeRN Trial
Public ClinicalTrials.gov record NCT00339950. 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.
Official title
Diet, Other Risk Factors, Genetics and the Risk of Colorectal Neoplasia in a Screening Trial of Asymptomatic Women: A Sub-Study of the CONCeRN Trial
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The CONCeRN Trial is a multi-center study of asymptomatic women between the ages of 40 and 75 referred to regional military medical centers for routine colorectal screening. The primary purpose of the main study is to determine the extent to which advanced neoplastic lesions will be missed if clinicians only perform sigmoidoscopies rather than full colonoscopies as a screening procedure and to resolve current debate about the significance of sigmoidoscopic detection of single, small, tubular adenomas (i.e., do they imply greater risk for large adenomatous polyps or colorectal cancer at other sites beyond the reach of the sigmoidoscope, or is there no increased risk?). Women enrolled in the trial receive colonoscopy during which all identified polyps are removed and also during which two pinch biopsies of apparently-normal tissue are taken. In addition, before the colonoscopy is performed, patients wil have blood drawn and answer a brief questionnaire on risk factors for colorectal cancer. The sub-study proposes to add on a more extensive questionnaire to assess dietary and other lifesyle factors potentially related to colorectal cancer, and to draw additional blood for assessment of nutritional status and for analysis of genetic polymorphisms related to colorectal cancer. With the additional information available from these questionnaires and blood samples, it will be possible to explore the extent to which various dietary and genetic risk factors are related to colorectal polyps in asymptomatic women of average risk for disease.
Study identification
- NCT ID
- NCT00339950
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 937 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 40 Years to 79 Years
- Sex
- Female
- 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
- Feb 13, 2000
- Primary completion
- Jul 15, 2020
- Completion
- Jul 15, 2020
- Last update posted
- Jul 16, 2020
2000 – 2020
United States locations
- U.S. sites
- 3
- U.S. states
- 3
- U.S. cities
- 3
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Naval Medical Center, San Diego | San Diego | California | 92134-5000 | — |
| National Naval Medical Center | Bethesda | Maryland | 20889 | — |
| Naval Medical Center, Portsmouth | Portsmouth | Virginia | 23708 | — |
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 NCT00339950, 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 Jul 16, 2020 · Synced Sep 11, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00339950 live on ClinicalTrials.gov.