Plain-English translation of NCT02811900 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This is a long-term research study that follows people who have had weight loss surgery, specifically a procedure called gastric bypass. Researchers are collecting information about surgery outcomes, complications, and how the surgery affects quality of life over time. The study has been running since 1996 and aims to help doctors better understand and improve weight loss surgery care.
While weight loss surgery is effective for many people, sometimes complications develop — like internal hernias (a fold of tissue that can block the intestines). This study exists to understand how often these complications happen, how they affect daily life and quality of life, and what the long-term results of surgery really look like for patients.
You likely qualify if…
You likely don't qualify if…
If you join this study, you will be part of a database where your surgery information, recovery details, and health outcomes are tracked over time. You may be contacted by phone to answer questions about your quality of life, any pain you experience, and your weight loss progress. The study does not require you to receive any new treatment — it simply collects information from your regular medical care and your own experiences.
AI-generated summary from trial data · Aug 24, 2026 · Not medical advice
France
IHU Strasbourg
Enrollment target
~10,000 participants
Started
January 1996
Primary completion
December 2026
Age range
18 Years and older
Last updated on clinicaltrials.gov in November 2017.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Didier Mutter, MD, PhD
Department of Digestive and Endocrine Surgery, University Hospital of Strasbourg
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.