Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Which bariatric surgery wins? new trial pits SASI bypass against sleeve gastrectomy

NCT ID NCT05611697

Disease control Sponsor: Oslo University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study compares two weight-loss surgeries—SASI bypass and sleeve gastrectomy—in 220 adults with severe obesity. The goal is to see which one leads to more weight loss and fewer problems like acid reflux. Participants will be randomly assigned to one of the two procedures and followed for changes in BMI and reflux symptoms.

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 (SASI bypass or sleeve gastrectomy)
What this could lead to
If successful, this could show which surgery is better for long-term weight loss and reducing acid reflux in people with severe obesity.
What could go wrong
This is a randomized trial but not blinded, and results may not apply to everyone. Both surgeries carry risks like infection, leaks, or nutritional deficiencies.

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

About 220 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2023

Expected to finish

Dec 2031

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

20 to 60 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: 1. Morbid obesity at referral for bariatric surgery (i.e. a body-mass index \[BMI\] of ≥35 kg/m2 with obesity-related comorbid conditions or ≥40 kg/m2 with or without such comorbidities). 2. Age 20-60 years. 3. Previous failed attempts of weight loss. 4. Norwegian speaking patients. Exclusion Criteria: 1. BMI ≥55 kg/m2. 2. A history of major abdominal or bariatric surgery (excluding appendectomy, cholecystectomy, and sectio). 3. Established disabling cardiopulmonary disease, ongoing treatment for cancer, long-term steroid use, and conditions believed to be associated with poor adherence after surgery. 4. Previous or current gastroesophageal reflux symptoms with daily use of antireflux medication. Patients are also excluded if preoperative manometry identifies a hiatal hernia (≥4cm in axial length) or if preoperative upper endoscopy identifies esophagitis grade C or D (LA classification), peptic stricture, Barrett's esophagus, or esophageal carcinoma. 5. Achalasia 6. Pregnancy.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Obesity, morbid are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

morbid obesity

As listed by the trial registrant

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

Obesity, morbid

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Oslo University Hospital

    RECRUITING

    Oslo, 4950, Norway

  • The Morbid Obesity Center, Vestfold Hospital Trust

    RECRUITING

    Tønsberg, Vestfold, 3103, Norway

More trials for these conditions

Other studies related to the condition(s) this trial covers.