Measuring Eating Behaviors After Bariatric Surgery
Direct Measurement of Ingestive Behaviour in Relation to Sex Differences and Gastrointestinal Hormone Levels in Patients After Metabolic and Bariatric Surgery
This study is trying to see how bariatric surgery changes drinking habits in patients and how those changes relate to weight loss and other health outcomes.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 420 (estimated) |
| Ages | 18 Years and up |
| Sex | All |
| Sponsor | University of Zurich Academic / other |
| Locations | 2 sites (Männedorf, Canton of Zurich and 1 other locations) |
| Trial ID | NCT06538948 on ClinicalTrials.gov |
What this trial studies
This observational study investigates how bariatric surgery affects eating behaviors by using a device called the 'drinkometer' to directly measure changes in drinking behavior in patients after procedures like Sleeve Gastrectomy and Roux-en-Y gastric bypass. The study aims to explore the relationship between these behaviors, sex differences, and gut hormone levels, providing a more accurate understanding of post-operative outcomes. By analyzing these factors, the research seeks to correlate changes in ingestive behavior with weight loss and other clinical outcomes over time.
Who should consider this trial
Good fit: Ideal candidates include adults aged 18 and older with a BMI of 35 or higher planning to undergo bariatric surgery, as well as external controls with varying BMI levels.
Not a fit: Patients with a history of previous bariatric surgeries, smoking, diabetes, or polycystic ovary syndrome may not benefit from this study.
Why it matters
Potential benefit: If successful, this study could lead to improved understanding of eating behaviors post-surgery, potentially enhancing patient outcomes and weight loss strategies.
How similar studies have performed: While studies on ingestive behavior exist, this approach using direct measurement with the drinkometer is relatively novel and has not been extensively tested in this context.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age ≥ 18 year * BMI ≥ 35 kg/m2 for patients with planned RYGB or SG operation * BMI ≥ 30 kg/m2 for external controls affected by obesity but no planned RYGB or SG within the next 12 months, and * BMI ≥ 18.5 kg/m2 and ≤ 24.9 kg/m2 for controls without obesity. Exclusion Criteria: * history of previous bariatric operations and/ or revisional surgery (e.g., alteration of limb lengths after primary RYGB), * smoking, * established diagnosis of type 1 or 2 diabetes mellitus, and * polycystic ovary syndrome (PCOS).
Where this trial is running
Männedorf, Canton of Zurich and 1 other locations
- Hospital Männedorf — Männedorf, Canton of Zurich, Switzerland (Recruiting)
- University Hospital Zurich, Department of Surgery and Transplantation — Zurich, Switzerland (Recruiting)
Study contacts
- Principal investigator: Marco Bueter, MD, DPhil — University of Zurich
- Study coordinator: Marco Bueter, MD, DPhil
- Email: m.bueter@spitalmaennedorf.ch
- Phone: +41442558895
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.