Skip to main content
OpenTrials
Recruiting

NCT Number: NCT03517072

Determinants of the Long-Term Success of Bariatric Surgery

The management of obesity is based on a multidisciplinary approach and justifies the use of surgery in patients with the most severe forms. Surgery for obesity or bariatric surgery generally allows rapid and significant weight loss however it is associated with significant risks, and its long-term results remain heterogeneous and unpredictable. Long-term data will clarify the role of different types of bariatric surgery in surgical strategy, improve patient information and identify predictors of failure in order to provide personalised and tailored surgery for each candidate .

Recruiting

Interested in participating?

Request Info

Key information

Conditions

Morbid Obesity Bariatric Surgery Candidate Body Weight Nutrition Disorders Nutritional and Metabolic Diseases Obesity Obesity, Morbid Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Sex eligibility

All sexes

Study type

Observational

Primary location

CH ARRAS, Arras, France

Loading trial locations.

About this study

Currently, there is insufficient data to determine the persistence over time of the positive results of bariatric surgery on weight loss. Moreover, there is no consensus or criteria for choosing one surgical weight loss procedure over another. The best choice for one patient may not be the most appropriate for another.

The results of this project will allow to better select obese patients likely to benefit from bariatric surgery, and to further personalise the management of severe obesity.

Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients who received bariatric surgery 5 years ago.

Exclusion criteria

  • Refusal to participate in the study,
  • Unable to receive informed information,
  • Unable to participate in the study

Treatment and study plan

Primary outcomes

  1. Success rate in terms of weight loss

    Time frame: at 5 years after bariatric surgery

    Rate of patients who lost at least 20 of their initial body weight

Secondary outcomes

  1. Success rate in terms of weight loss according to type of bariatric surgery

    Time frame: at 1 year after bariatric surgery

    Rate of patients who lost at least 20 of their initial body weight at 1 year according to type of bariatric surgery (Gastric by-pass in Y or Omega, sleeve gastrectomy, and gastric band)

  2. Success rate in terms of weight loss according to type of bariatric surgery

    Time frame: at 5 years after bariatric surgery

    Rate of patients who lost at least 20 of their initial body weight at 5 years according to type of bariatric surgery (Gastric by-pass in Y or Omega, sleeve gastrectomy, and gastric band)

  3. Rate of re- interventions related to bariatric surgery

    Time frame: 5 years

    Evaluation of re-interventions following bariatric surgery

  4. Lost rate seen

    Time frame: at 5 years after bariatric surgery

    Evaluation of lost to follow-up

Study contacts

Contact information is provided by the study sponsor or research team.

François PATTOU, MD,PhD

CONTACT

franç[email protected]

3 20 44 42 73 ext. +33

Violetta RAVERDY, MD,PhD

CONTACT

[email protected]

3 20 44 42 73 ext. +33

Sponsors and collaborators

Lead sponsor

University Hospital, Lille

Other

Registry information

Official study title

Determinants of the Long-Term Success of Bariatric Surgery "- Multicenter Regional Observational Study: Regional Multicentre Prospective Study

Acronym: PRECOS

Important dates

Study start
2018
Primary completion
2027
Study completion
2027
First posted
May 7, 2018
Registry last updated
May 22, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.