ClinicalTrials.gov record

Completed Not applicable Interventional Accepts healthy volunteers Results available

Clinical Study of Real Time Colorectal Polyp Diagnosis During Colonoscopy - the VALID Colonoscopy Study

ClinicalTrials.gov ID: NCT01288833

Public ClinicalTrials.gov record NCT01288833. 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.

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ClinicalTrials.gov public records Last synced Jul 22, 2026, 10:33 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Real Time Colorectal Polyp Diagnosis in Colorectal Cancer Screening Using Close Focus High Definition Narrow Band Imaging Colonoscopy Compared to Conventional Histopathology Diagnosis - the VALID (Veterans Affairs Lesion Interpretation and Diagnosis) Colonoscopy Study

Study identification

NCT ID: NCT01288833
Recruitment status: Completed
Study type: Interventional
Phase: Not applicable
Lead sponsor: VA Palo Alto Health Care System; Federal
Enrollment: 558 participants

Conditions and interventions

Conditions

Interventions

Close focus HD NBI Colonoscopy System Device

Device

Eligibility (public fields only)

Age range: 18 Years and older
Sex: All
Healthy volunteers: Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date: Feb 28, 2011
Primary completion: May 31, 2015
Completion: Sep 30, 2015
Last update posted: May 31, 2018

2011 – 2015

United States locations

U.S. sites: 2
U.S. states: 2
U.S. cities: 2

Facility	City	State	ZIP	Site status
Veterans Affairs Palo Alto	Palo Alto	California	94304	—
Veterans Affairs Kansas City	Kansas City	Missouri	64128	—

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 NCT01288833, 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 May 31, 2018 · Synced Jul 22, 2026

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The complete protocol, eligibility criteria, and contact information for NCT01288833 live on ClinicalTrials.gov.

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