New Ruler-on-a-Stick could help solve weight regain after gastric bypass

NCT ID NCT04832282

Ongoing Knowledge-focused Sponsor: NYU Langone Health Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tests a new device called Napoleon, a tiny catheter with a ruler, to measure the size of the stomach-connection opening in people who have regained weight after gastric bypass surgery. Doctors will compare measurements taken with the device to their usual visual estimates. Up to 100 patients will take part, and the goal is to see if the device is easy to use and gives more consistent results.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Napoleon device (a small catheter with a ruler for measuring)
What this could lead to: If successful, this could give doctors a more accurate way to measure the stomach connection, potentially guiding better treatment for weight regain after gastric bypass.
What could go wrong: This is an early feasibility study with only 100 participants, so results may not apply to everyone. The device is used off-label, and its benefit over simple visual estimation is not yet proven.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

GASTRIC BYPASS WEIGHT REGAIN

Contacts and locations

Locations

Bellevue Hospital Center

New York, New York, 10016, United States
Brigham and Women's Hospital

Boston, Massachusetts, 02115, United States

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