Use of the Napoleon to Improve Polyp Measurement in Gastroenterology Fellows
Public ClinicalTrials.gov record NCT04858477. 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.
Study identification
- NCT ID
- NCT04858477
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Early Phase 1
- Lead sponsor
- NYU Langone Health
- Other
- Enrollment
- 46 participants
Conditions and interventions
Conditions
Interventions
- Visual estimation of polyp size Other
- Napoleon measurement of polyp size Device
Other · Device
Eligibility (public fields only)
- Age range
- 45 Years and older
- Sex
- All
- 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
- Jun 13, 2021
- Primary completion
- Sep 25, 2023
- Completion
- Sep 25, 2023
- Last update posted
- Feb 24, 2026
2021 – 2023
United States locations
- U.S. sites
- 4
- U.S. states
- 1
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| NYU Langone Hospital Brooklyn | Brooklyn | New York | 11220 | — |
| Bellevue Hospital Center | New York | New York | 10016 | — |
| Manhattan VA Medical Center | New York | New York | 10016 | — |
| NYU Langone Health | New York | New York | 10016 | — |
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 NCT04858477, 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 Feb 24, 2026 · Synced Jul 21, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04858477 live on ClinicalTrials.gov.