4XL Study - Obesity Surgery in Adolescence (4XL)
4XL-Study - Obesity Surgery in Adolescence
Sponsor: Sykehuset i Vestfold HF
Listed as NCT00923819, this observational or N/A phase trial focuses on Obesity, Morbid and remains ongoing. Sponsored by Sykehuset i Vestfold HF, it has been updated 10 times since 2009, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.
Study Description(click to expand)The study has two intervention arms:
Experimental: Group A Surgery; laparoscopic gastric bypass
Active comparator: Group B Patients from Child Obesity Registry of Vestfold who get standard conservative treatment in a multidisiplinary team at Morbid Obesity Center.
All patients are referred to Morbid Obesity Center from other hospitals or general practionairs in Norway. The procedure will take place at the Vestfold Hospital Trust The participants are included for 2 years follow-up with visits to a multidisciplinary team every 3rd month at the Morbid Obesity Center. Total follow-up time is ten years.
The study has two intervention arms:
Experimental: Group A Surgery; laparoscopic gastric bypass
Active comparator: Group B Patients from Child Obesity Registry of Vestfold who get standard conservative treatment in a multidisiplinary team at Morbid Obesity Center.
All patients are referred to Morbid Obesity Center from other hospitals or general practionairs in Norway. The procedure will take place at the Vestfold Hospital Trust The participants are included for 2 years follow-up with visits to a multidisciplinary team every 3rd month at the Morbid Obesity Center. Total follow-up time is ten years.
Status Flow
Change History
10 versions recorded-
Apr 28, 2026 — Present [daily]
Active Not Recruiting
Phase: NA → None
-
Sep 2024 — Apr 2026 [monthly]
Active Not Recruiting NA
-
Jul 2024 — Sep 2024 [monthly]
Active Not Recruiting NA
-
May 2024 — Jul 2024 [monthly]
Active Not Recruiting NA
-
Sep 2023 — May 2024 [monthly]
Active Not Recruiting NA
Status: Recruiting → Active Not Recruiting
▶ Show 5 earlier versions
-
Jan 2021 — Sep 2023 [monthly]
Recruiting NA
-
Apr 2020 — Jan 2021 [monthly]
Recruiting NA
-
Jan 2019 — Apr 2020 [monthly]
Recruiting NA
-
Jun 2018 — Jan 2019 [monthly]
Recruiting NA
-
Jan 2017 — Jun 2018 [monthly]
Recruiting NA
First recorded
Jun 2009
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
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.
Contact Information
- Sykehuset i Vestfold HF
- The Hospital of Vestfold
For direct contact, visit the study record on ClinicalTrials.gov .