NCT00923819Active, not recruiting
4XL Study - Obesity Surgery in Adolescence
4XL-Study - Obesity Surgery in Adolescence
Source: ClinicalTrials.gov · Last updated 24 Apr 2026
Brief summary (registry, in English)
The purpose of this study on adolescents between 13 and 18 years of age with morbid obesity is to determine whether surgical treatment gives more health benefits than standard conservative treatment, and if laparoscopic gastric bypass is a method with high safety and a low complication rate.
- Status (registry)
- Active, not recruiting
- Study type
- Interventional
- Enrollment
- 120 (estimated)
- First submitted
- 17 Jun 2009
- Start date
- 1 Jun 2009
- Primary completion date
- 31 Aug 2033
- Lead sponsor
- Sykehuset i Vestfold HF
- Diseases
- Obesity
- NCT number
- NCT00923819
What you commit to
- Study type: Interventional
- Planned participants: 120
- From 1 Jun 2009 to the primary completion date, 31 Aug 2033
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Obesity syndrome (e.g., Prader Willi syndrome)
- Serious general disease
Other
- Tanner stage \< 4
- Substantial risk for lack of compliance
- Obesity related to brain damage
- Monogenic obesity
Who the study is looking for
- Between 13 and 18 years of age at inclusion
- Tanner stage 4-5
- BMI \> 40 kg/m2 or BMI \> 35 with at least one comorbidity (type 2-diabetes, obstructive sleep apnea, serious hypertension or cerebral pseudotumor)
- At least one year multidisciplinary treatment completed
Age in the registry: 13 years to 18 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Morbid Obesity Center, The Hospital of Vestfold, South-Eastern Norway Regional Health Authority Coordinator of this site? Confirm its status | Tønsberg | Norway | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.