New probe aims to predict heartburn risk after stomach-shrinking surgery
NCT ID NCT04411823
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is testing whether a device called EndoFLIP can predict who will develop acid reflux after sleeve gastrectomy, a common weight-loss surgery. Researchers will measure the flexibility and function of the valve between the stomach and esophagus in 200 adults before surgery. The goal is to identify risk factors for new or worsening reflux, which could help doctors tailor surgical approaches or follow-up care.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could help doctors predict which patients are likely to develop acid reflux after sleeve gastrectomy, allowing for better surgical planning or preventive measures.
- What could go wrong
- This is an observational study, not a treatment trial. The device's predictions may not be accurate for all patients, and the results may not change outcomes directly.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2021
- Expected to finish
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Oct 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adult patients \> 18 years * BMI 30 or greater kg/m2 * Participants can give a consent to the procedure * Participants have no contraindications to LSG (gastric ulceration) Exclusion Criteria: * Participants who have LA grade C or D esophagitis, Barrett mucosa or peptic stricture. * Patients who have evidence of a major motility abnormality defined by the Chicago classification version 3.0 (achalasia, absent contractility, esophagogastric junction outflow obstruction, distal esophageal spasm, or hypertensive peristalsis) * Patients with hiatal hernia \> 3 cm * Patients with previous esophageal or stomach surgery
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Mayo Clinic in Rochester
RECRUITINGRochester, Minnesota, 55905, United States
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Orlando Health
ACTIVE_NOT_RECRUITINGOrlando, Florida, 32806, United States
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