Safety and effectiveness of weight loss surgery in adolescents with extreme obesity within a structured pre- and post-surgery treatment programme – Observational study, Subproject 3

Safety and effectiveness of weight loss surgery in adolescents with extreme obesity within a structured pre- and post-surgery treatment programme – Observational study, Subproject 3 - YES

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00004196

Enrollment

Registered

2013-10-25

Start date

2013-11-01

Completion date

Unknown

Last updated

2026-03-30

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

Conditions

E66

Interventions

Group 1: Adolescents and young adults with extreme obesity who participate in the study "Adolescents with extreme Obesity" and undergo bariatric surgery. In then context of routine clinical care, we

Eligibility

Sex/Gender

All

Age

14 Years to 24 Years

Inclusion criteria

Inclusion criteria: - BMI = 35 kg/m2 with severe comorbidity or BMI = 40 kg/m2 with relevant comorbidity - completed longitudinal growth - stable social surroundings - exhaustion of conservative treatment - participation in the project "Adolescents with extreme Obesity" - adequate compliance and adherence

Exclusion criteria

Exclusion criteria: - treatable causative condition - unstable medical, psychosocial or psychiatric comorbidity - alcohol or drug abuse - pregnancy - contraindication for bariatric surgery

Design outcomes

Primary

Measure	Time frame
BMI reduction after 1 year	—

Secondary

Measure	Time frame
- BMI reduction over time (biannually for 9 years) - changes in somatic, psychosocial and psychiatric comorbidity (patient questionnaire, physical examination, psychiatric evaluation, laboratory and apparative studies)(annually for 9 years) - peri- und postoperative complications(annually for 9 years) - vitamin deficiencies (patient questionnaire, laboratory studies)(annually for 9 years) - adherence with postoperative recommendations on supplements, doctors visits and nutrition (patient questionnaire)(annually for 9 years) - hunger, food tolerance, gastrointestinal symptoms, dumping (patient questionnaire)(annually for 9 years) - eating behavior (EDE-Q)(annually for 9 years) - exercise (IPAQ)(annually for 9 years) - quality of life (SF36, IWQOL)(annually for 9 years) - schooling, vocation, psychosocial situation, functional impairments (patient questionnaire)(annually for 9 years)	—

Measure

Time frame

- BMI reduction over time (biannually for 9 years) - changes in somatic, psychosocial and psychiatric comorbidity (patient questionnaire, physical examination, psychiatric evaluation, laboratory and apparative studies)(annually for 9 years) - peri- und postoperative complications(annually for 9 years) - vitamin deficiencies (patient questionnaire, laboratory studies)(annually for 9 years) - adherence with postoperative recommendations on supplements, doctors visits and nutrition (patient questionnaire)(annually for 9 years) - hunger, food tolerance, gastrointestinal symptoms, dumping (patient questionnaire)(annually for 9 years) - eating behavior (EDE-Q)(annually for 9 years) - exercise (IPAQ)(annually for 9 years) - quality of life (SF36, IWQOL)(annually for 9 years) - schooling, vocation, psychosocial situation, functional impairments (patient questionnaire)(annually for 9 years)

—

Countries

Germany

Contacts

Public ContactBelinda Lennerz

Sektion Pädiatrische Endokrinologie und Diabetologie, Universitätsklinik für Kinder- und Jugendmedizin

ja-studie@uni-ulm.de0731 500 57401

Outcome results

None listed

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