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Bariatric Surgery's lasting impact under the microscope after a decade

NCT ID NCT05743166

Knowledge-focused Sponsor: St. Olavs Hospital 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This completed study followed 687 people who had bariatric surgery (gastric bypass or sleeve gastrectomy) in Norwegian public hospitals between 2010 and 2015. Researchers aimed to see how long weight loss lasts and whether related health problems like diabetes, high blood pressure, and sleep apnea go away. Participants filled out questionnaires, had clinical exams, blood tests, and interviews to track long-term outcomes and complications.

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 study could provide clear evidence on how long weight loss and health improvements last after bariatric surgery, helping doctors and patients make informed decisions.
What could go wrong
This is an observational study, not a controlled trial, so it cannot prove cause and effect. Results may not apply to all patients or surgical techniques.

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.

Participants

687 people

The number who actually took part.

Started

Mar 2023

Finished

Mar 2026

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.

Who is studied

1400 patients who had baratric surgery at three public hospitals in Central Norway from 2010 to 2015 are invited to a follow up in 2023-2025

Ages

20 to 75 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: * Bariatric surgery at Namsos Hospital, St. Olavs hospital or Ålesund Hospital from 01.01.2010 to 31.12.2015 Exclusion Criteria: * Not able to consent for participation * Includable participants not longer living in Norway

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Conditions

The condition(s) this trial relates to.

morbid obesity obesity disorder

As listed by the trial registrant

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

Bariatric surgery candidate

Contacts and locations

Locations

  • Helse Møre og Romsdal

    Ålesund, 6017, Norway

  • Helse Nord-Trondelag

    Namsos, 7800, Norway

  • St. Olavs Univeristy Hospital

    Trondheim, 7030, Norway

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