New ruler could help doctors spot why weight returns after gastric bypass
NCT ID NCT04832282
First seen Jan 07, 2026 · Last updated Jun 22, 2026 · Updated 24 times
Summary
This study tests a new device called Napoleon that measures the opening between the stomach and small intestine in people who had gastric bypass surgery but regained weight. Doctors currently estimate this opening by eye, which can be inaccurate. The Napoleon device uses a tiny ruler on a catheter to get exact measurements during an endoscopy. Up to 100 patients will take part, and doctors will compare the device's measurements to their visual estimates.
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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Bellevue Hospital Center
New York, New York, 10016, United States
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Brigham and Women's Hospital
Boston, Massachusetts, 02115, United States
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 the stomach- intestine connection during endoscopy)
What this could lead to
If successful, this could give doctors a more accurate way to measure the stomach-intestine connection in gastric bypass patients, potentially guiding better treatments for weight regain.
What could go wrong
This is a small feasibility study, not a treatment trial. The device is used off-label and may not improve patient outcomes. It only measures, not fixes, the problem.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.