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Use of the Napoleon to Improve Polyp Measurement in Gastroenterology Fellows

Use of the Napoleon to Improve Polyp Measurement in Gastroenterology Fellows

Status
Completed
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04858477
Enrollment
46
Registered
2021-04-26
Start date
2021-06-14
Completion date
2023-09-26
Last updated
2026-02-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colonic Polyp

Brief summary

This is a clinical trial assessing gastroenterology fellows' accuracy of colonic polyp measurement using a Micro-Tech Endoscopic Polyp Measurement Device named Napoleon. The study will evaluate the feasibility of Napoleon as a polyp measurement device. Investigators will collect data on inpatient and outpatient colonoscopies performed by fellows at NYU Langone Health, NYU Langone Hospital Brooklyn, Bellevue Hospital Center, and Manhattan VA Medical Center from May 2021 - May 2022 for 150 patients. Investigators will include all colonoscopies with polyps done in adults age 45 and above. For each colonoscopy, a fellow will first visually estimate the polyp size and then measure the polyp with Napoleon. Investigators will calculate the difference in polyp measurement between visual assessment and using Napoleon for each fellow year and compare differences among fellow years. Investigators will evaluate for changes in fellows' accuracy of polyp measurement with subsequent uses of Napoleon. Investigators will determine the proportion of cases with a change in the recommended surveillance interval based on polyp size. A survey will be given to all fellows to assess the level of ease with using Napoleon.

Interventions

OTHERVisual estimation of polyp size

For each colonoscopy, a fellow will first visually estimate the polyp size

DEVICENapoleon measurement of polyp size

For each colonoscopy, a fellow will first visually estimate the polyp size and then measure the polyp with Napoleon. The Micro-Tech Endoscopic Polyp Measurement Device named Napoleon is a small catheter with a 15mm ruler calibrated at 1mm intervals with 5mm demarcations. It is classified as a Class 1, 510(k) exempt device by the FDA.

Sponsors

NYU Langone Health
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
45 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Patients: Inclusion Criteria: 1. Adult age 45 and above 2. Undergoing a colonoscopy performed by a gastroenterology fellow 3. Willingness and ability to provide informed consent

Exclusion criteria

1. History of not tolerating prior colonoscopies well or difficult colonoscopies (e.g. high sedative requirement) 2. Undergoing a diagnostic colonoscopy for inflammatory bowel disease or other known inflammatory/infectious process An individual who meets any of the following criteria during the colonoscopy will be excluded from participation in this study: 1. Colonoscopy without polyps 2. Polyps not removed in entirety 3. Polyps with indeterminate size An individual who meets any of the following criteria after the colonoscopy will be excluded from participation in this study: 1\. Hyperplastic or non-adenomatous polyps on pathology report Fellows Inclusion Criteria: 1. NYU gastroenterology fellow 2. Willingness and ability to provide informed consent

Design outcomes

Primary

MeasureTime frame
Proportion of cases with a difference in the recommended surveillance interval based on polyp size6 months
Difference in accuracy of polyp measurement among fellow years6 months
Difference in fellows' accuracy of polyp measurement with subsequent uses of Napoleon6 months
Difference in polyp measurement between histology and using Napoleon6 months
Difference in polyp measurement between visual assessment and using Napoleon in fellows6 months

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORRenee Williams, MD

NYU Langone Health

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026