5000 volunteers help hunt for hidden cancer clues
NCT ID NCT00899626
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study collects tissue, blood, urine, and stool samples from 5000 people undergoing colonoscopy or endoscopy, including those with cancer, polyps, or inflammatory bowel disease, as well as healthy volunteers. The goal is to find new biomarkers that could improve early detection of gastrointestinal cancers. No treatments are being tested.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could lead to better screening tests for colon and other gastrointestinal cancers.
- What could go wrong
- This is an observational study, not a treatment trial. It may not identify useful markers, and any findings would need years of further testing.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 5,000 people
The number the study aims to enrol. It can still change while the study runs.
- Start date
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Jun 2002
- Expected to finish
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Oct 2045
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Vanderbilt University Medical Center patients with GI malignancy
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
DISEASE CHARACTERISTICS: * Undergoing colonoscopy or endoscopy for diagnostic or screening purposes at the Vanderbilt University Medical Center or at the Veterans Affairs Medical Center AND * Meets 1 of the following criteria: * Diagnosis of gastrointestinal (GI) cancer, polyps, or inflammatory bowel disease * History of previously treated GI cancer, polyps, or inflammatory bowel disease PATIENT CHARACTERISTICS: * Capable of giving informed consent * Not mentally or medically impaired * No bleeding disorder PRIOR CONCURRENT THERAPY: * See Disease Characteristics
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Vanderbilt-Ingram Cancer Center
RECRUITINGNashville, Tennessee, 37232-6838, United States
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Veterans Affairs Medical Center - Nashville
RECRUITINGNashville, Tennessee, 37212, United States
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