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The influence of different surgical interventions on neural food cue reactivity in obese patients

The influence of different surgical interventions on neural food cue reactivity in obese patients - Obelix 2

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00019850
Enrollment
30
Registered
2019-11-26
Start date
2011-12-01
Completion date
Unknown
Last updated
2025-12-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

E66

Interventions

Group 1: 15 Study participants, aged between 18 and 65 years, and BMI (kg/m2) > 35 (= grade 2 obesity, according to the accepted thresholds for obesity by the World Health Organization), - receiving

Sponsors

Zentralinstitut für Seelische Gesundheit Mannheim
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: For all study participants - age between 18 and 65 years, - the capacity to give informed consent and to handle the questionnaires - written informed consent For patients: - BMI (kg/m2) > 35 (= grade 2 obesity) according to the ICD-10 - waist circumference < 160 cm (limited by scanner diameter)

Exclusion criteria

Exclusion criteria: -withdrawal of informed consent - history or current diagnosis of any psychiatric disorder, (with the exception of nicotine addiction) that needed to be treated pharmacologically in the last 12 months - current cognitive behavioral therapy - current use of illicit drugs - current suicidal ideation - history of brain injury or severe neurological disorder - current instable somatic disorder - current intake (last 4 months) of any centrally acting psychoactive or anti-obesity medications (i.e. sedatives, antipsychotics, including long-acting injectable antipsychotics, antidepressants, opioid analgesics as well as DPP (dipeptidyl peptidose IV) inhibitors and GLP (Glucagon-like peptide)-1 antagonists, - all participants with a history of surgical interventions in the gastrointestinal system -all participants requiring permanent medical monitoring or requiring medical interventions during the study period - contraindications to fMRI scanning (e.g. metal implants), - pregnant or breast-feeding females

Design outcomes

Primary

MeasureTime frame
Our study was aimed at detecting alterations of mesolimbic response to food-associated visual cues, both 8 as well as 24 weeks after bariatric surgery (first arm: Roux en Y bypass, second arm sleeve gastrectomy)

Secondary

MeasureTime frame
In addition, our study was aimed at identifying alterations of appetite regulating hormones both 8 as well as 24 weeks after bariatric surgery (first arm: Roux en Y bypass, second arm sleeve gastrectomy).

Countries

Germany

Contacts

Public ContactMalte Bumb

Zentralinstitut für Seelische GEsundheit

jan.bumb@zi-mannheim.de062117033502

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026