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Napoleon Measurement of Gastrojejunal Anastomosis

NCT04832282 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2025-12-23

No results posted yet for this study

Summary

This is a clinical trial assessing the feasibility of the Napoleon device for measuring the gastrojejunal anastomosis (GJA). The study population is Roux-en-Y gastric bypass (RYGB) patients with weight regain undergoing an endoscopy at Bellevue Hospital Center or Brigham and Women's Hospital. investigators aim for a sample size of up to 100 cases. For each case, endoscopists will first visually estimate the diameter of the GJA by comparing its size to the upper endoscope. Then, they will measure the GJA with Napoleon. Investigators will compare the GJA measurements performed using visual estimation and Napoleon. A survey will be given to all endoscopists to assess the level of ease using Napoleon.

Conditions

  • Gastric Bypass
  • Weight Regain

Interventions

DEVICE

Napoleon

The Micro-Tech Endoscopic Measurement Device named Napoleon is a small catheter with a 30mm ruler calibrated at 1mm intervals with 5mm demarcations. It is classified as a Class 1, 510(k) exempt device by the FDA. The device was originally intended to measure polyps. However, it is used off-label in this study and is considered investigational.

OTHER

Visual estimation

For each case, endoscopists will first visually estimate the diameter of the GJA by comparing its size to the upper endoscope.

Sponsors & Collaborators

Study Design

Allocation
NA
Purpose
DEVICE_FEASIBILITY
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
90 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-06-14
Primary Completion
2025-06-30
Completion
2026-06-30
FDA Device
Yes

Countries

  • United States

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04832282 on ClinicalTrials.gov