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Simpler Weight-Loss surgery may reduce side effects

NCT ID NCT07115836

Disease control Sponsor: Laval University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two types of weight-loss surgery for people who have already had a sleeve gastrectomy but still have obesity. One surgery is the standard duodenal switch, and the other is a simpler single-loop version. Researchers want to see if the simpler surgery causes fewer digestive and nutritional problems while still helping with weight loss. The study involves 63 participants and is being conducted at Laval University.

What this could mean

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

Active substance
Surgical procedure (single-anastomosis duodeno-ileal bypass or standard duodenal switch)
What this could lead to
If the simpler single-loop surgery works as well, it could mean fewer nutritional problems and a safer option for weight-loss surgery.
What could go wrong
This is a small, early-stage study with only 63 people, so results may not apply to everyone. The simpler surgery might also lead to less weight loss.

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

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

63 people

The number who actually took part.

Started

Jan 2017

Expected to finish

Jan 2028

An estimate. End dates often move.

Lead sponsor

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

18 to 65 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients who had a parietal gastrectomy more than 18 months ago and * Who still meet NIH criteria for bariatric surgery (BMI ≥ 35kg/m2 with associated disease or BMI ≥ 40kg/m2) or * Have lost \< 50% of their excess weight, or * Have significant weight regain (≥ 20% EWL) * Accepting long-term care and follow-up and willing to participate in this study after informed consent Exclusion Criteria: * Other bariatric procedures apart from parietal gastrectomy. * Psychiatric illness not stabilized for more than 6 months * Severe illness with life-threatening consequences within 5 years * Diagnosis of cancer within the last 3 years * Chronic digestive disorders (chronic diarrhea, inflammatory diseases, cirrhosis, intestinal resections, functional abdominal pain) * Pregnancy or desire for pregnancy within 2 years * Intellectual retardation making consent impossible or patient under guardianship

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Conditions

The condition(s) this trial relates to.

morbid obesity Obesity obesity disorder

As listed by the trial registrant

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

Obesity Obesity, morbid

Contacts and locations

Locations

  • Criucpq-Ul

    Québec, Quebec, G1V 4G5, Canada

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