Understanding alcohol consumption patterns after bariatric surgery

Evolution of Alcohol Consumption Patterns After Bariatric Surgery and Associated Factors

University of Liege · NCT06194175

This study looks at how drinking habits change after weight loss surgery and what psychological factors might lead to alcohol problems in those patients.

Quick facts

Study typeObservational
Enrollment350 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Liege (other)
Locations4 sites (Auderghem and 3 other locations)
Trial IDNCT06194175 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the evolution of drinking patterns and psychological predictors of alcohol use disorder (AUD) in patients who have undergone bariatric surgery. It will analyze how alcohol consumption changes post-surgery and identify psychological factors that may contribute to problematic drinking. The research is motivated by the increasing rates of AUD observed in bariatric surgery patients and seeks to inform prevention strategies. Participants will complete questionnaires to provide data on their alcohol consumption and psychological profiles.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with a BMI of 40 or higher, or 35 or higher with obesity-related comorbidities, who are scheduled for bariatric surgery and fluent in French.

Not a fit: Patients who are minors, have difficulty understanding French, or lack access to a computer or smartphone will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved prevention strategies for alcohol use disorders in patients after bariatric surgery.

How similar studies have performed: While there have been studies indicating increased AUD rates post-bariatric surgery, this specific focus on psychological predictors and longitudinal drinking patterns is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Being 18 years or older at the time of surgery
* Having a body mass index (BMI) greater than or equal to 40 or a BMI greater than or equal to 35 with at least one obesity-related comorbidity
* Having a scheduled surgery date
* Fluency in French speaking
* Being able to complete the questionnaires, i.e. have access to a computer or a smartphone

Exclusion Criteria:

* Being a minor at the time of the operation
* Having difficulty reading or understanding French.
* Not having access to a computer or a smartphone to answer the questionnaires

Where this trial is running

Auderghem and 3 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Bariatric Surgery, Obesity, Alcohol Drinking, bariatric surgery, obesity, alcohol, predictor, longitudinal

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.