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CompletedNCT05743166BAROBS2Updated May 29, 2026

Bariatric Surgery Observation Study Part 2

An observational study in Bariatric Surgery Candidate, sponsored by St. Olavs Hospital. Completed at 3 sites in Norway. Open to participants aged 20 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-05-29.

Sponsored by St. Olavs Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
687
Ages
20 Years to 75 Years
Sex
All
01

Study summary

The goal of this observational study is to explore the longterm effects of two bariatric surgical procedures by inviting patients from three public hospitals who had Roux-en-Y gastric bypass or Sleeve gastrectomy to a follow-up after10-15 years

The main question[s] it aims to answer are:

  • The duration of the surgical method on weight reduction and remission of comorbidities
  • Theprevalence of complications and new morbidities after the surgical procedures Participants will be asked be asked to

    • fill inn questionnaires,
    • have a clinical examinition
    • have an interview with nurse and doctor
    • have blood samples taken
    • undergo other investigations
Read the detailed description

The BAROBS project is a collaberation between three public hospitals in Norway exploring the concequeces ten years or more after undergoing gastric bypass or sleeve gastrectomy for severe obesity.

1400 patients who underwent bariatric surgery at the three hospitals will be invited to a follow up including antrophometric, meassurment of bodily composition by bioimpedance and DXA, blood samples, questionnaires on sosioeconomic topics, symptoms and quality of life, continous glucose monitoring, dental examination, and other clinical evaluation.

02

Conditions studied

  • Bariatric Surgery Candidate
03

In context

Lead sponsor

St. Olavs Hospital is the lead sponsor of 165 studies on the registry; 30 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

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

Inclusion criteria

  • Bariatric surgery at Namsos Hospital, St. Olavs hospital or Ålesund Hospital from 01.01.2010 to 31.12.2015

Exclusion criteria

Exclusion Criteria:

  • Not able to consent for participation
  • Includable participants not longer living in Norway
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
687 participants (actual)
Patient registry
No

Interventions

  • ProcedureBariatric surgery

    JDF11 JDF41 JDF97

    Also known as: Roux-en-Y gastsric bypass, Sleeve gastrectomy

06

What researchers measure

Primary outcomes

  1. Long-term weight loss

    Total weight loss after bariatric surgery

    Time frame: 10-15 years after surgery

Secondary outcomes

  1. Remission of comorbidities after bariatric surgery

    Remission of Type 2 Diabetes Mellitus, Hypertension and Sleep Apnoe

    Time frame: 10-15 years after surgery

  2. Quality of life after bariatric surgery

    Health related quality of life, SF -36

    Time frame: 10-15 years after surgery

07

Study locations

3 sites
  • Helse Møre og Romsdal
    Ålesund, 6017, Norway
  • Helse Nord-Trondelag
    Namsos, 7800, Norway
  • St. Olavs Univeristy Hospital
    Trondheim, 7030, Norway
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 29, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05743166
Lead sponsor
St. Olavs Hospital
Collaborators
Helse Nord-Trøndelag HF, Helse Møre og Romsdal HF
Responsible party
Sponsor
First posted
Feb 24, 2023
Start date
Mar 28, 2023
Primary completion
Dec 31, 2025
Completion
Mar 31, 2026
Last update
May 29, 2026

Study contacts

Jorunn Sandvik, PhD
principal investigator · St. Olavs Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2026. You cannot join it, but the record below documents what was studied.

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