Tracking how body awareness and eating behavior change around bariatric surgery
Follows adults with severe obesity over time, from before to after weight-loss surgery.
Key facts
- Who runs it
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
- Where
- Rome, ItalySee the site
- Trial code
- Registry title
- Interoception and Illness Perception Before and After Bariatric Surgery: Impact on Disordered Eating (Interoceptiv-BAR)
- Status
- Recruiting
- People taking part
- 300 people, planned
- Started
- 13 May 2026
- Expected to end
- 13 May 2028
- Type of study
- Observational
- Record updated
- 3 September 2026
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with severe obesity who are being assessed for bariatric (weight-loss) surgery. It follows how they sense their body signals and view their illness before and after surgery.
- Age
- 18 years or older
- Sex
- All sexes can join.
- Disease stage
- Severe or morbid obesity: body mass index of 35 kg/m² or more with obesity-related conditions, or 40 kg/m² or more. Doctors have advised bariatric surgery after a team evaluation.
Main reasons for not taking part
- Younger than 18 years
- Brain or nerve disorders with cognitive impairment that could get in the way of filling in questionnaires
- Pregnant or breastfeeding at enrolment
- Cannot complete the study assessments because of language barriers or other conditions
The registry criteria, word for word
Show all 8 criteriaShow less
Who can take part
- Adults aged 18 years or older
- Diagnosis of severe or morbid obesity (body mass index ≥35 kg/m² with obesity-related comorbidities or ≥40 kg/m²)
- Undergoing multidisciplinary evaluation with indication for bariatric surgery
- Ability to provide informed consent and complete self-administered questionnaires
Who cannot take part
- Presence of neurological disorders associated with cognitive impairment that may interfere with questionnaire completion
- Inability to complete study assessments due to language barriers or other conditions limiting participation
- Age younger than 18 years
- Pregnancy or breastfeeding at the time of enrollment
Where in Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCSRome, ItalyContact: Maria Rosaria Magurano, PCTaking people
About the trial
What the trial wants to find out
Obesity is associated with alterations in the perception and interpretation of internal bodily signals (interoception), which may influence eating behaviors, emotional regulation, and long-term weight outcomes. Bariatric surgery induces profound physiological and neurohormonal changes that may affect interoceptive awareness and illness perception, potentially impacting the risk of disordered eating behaviors after surgery.
Read full original descriptionShow less
This observational study aims to evaluate longitudinal changes in interoceptive awareness and illness perception in adults with severe obesity undergoing bariatric surgery, from the pre-operative phase to long-term follow-up. The study also explores the relationship between these psychological constructs and clinical and behavioral outcomes over time.
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Interoception and Illness Perception Before and After Bariatric Surgery: Impact on Disordered Eating Behaviors
- Plain-language title
- Tracking how body awareness and eating behavior change around bariatric surgeryGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 12 November 2026.
- Record updated
- 3 September 2026