Plain-English translation of NCT05987631 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Researchers want to understand why some people lose much more weight after bariatric surgery than others, and why some see bigger improvements in their blood sugar and other health markers. By studying patients before and after their surgery, they hope to find predictors — clues that tell doctors which patients will benefit most — so treatment can be personalized for better results.
Weight loss surgery is the most effective treatment for severe obesity, but results vary widely. Doctors need better ways to predict who will have the best outcomes so they can tailor the treatment plan to each person's unique situation.
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You will visit the research center before your scheduled surgery to complete health assessments, blood tests, and questionnaires about your eating habits and health history. After your surgery, you'll return for follow-up visits at set intervals so researchers can track your weight loss, measure changes in your blood sugar and other metabolic markers, and collect information about your overall health and quality of life. The study is observational, meaning researchers are watching and measuring — not testing a new drug or asking you to change your routine beyond standard surgical care.
AI-generated summary from trial data · Jun 2, 2026 · Not medical advice
Netherlands
Sponsor
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Collaborators
Obesitas Kliniek B.V., Radboud University Medical Center
Enrollment target
~1,200 participants
Started
January 2023
Primary completion
August 2024
This trial's estimated completion date has passed — the record may not be fully up to date.
Age range
18 Years – 75 Years
Last updated on clinicaltrials.gov in August 2023.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Rieneke van der Meer, Drs.
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
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.