Could your muscle mass predict weight loss after gastric bypass?

NCT ID NCT07565051

Recruiting now Knowledge-focused Sponsor: University Hospital, Geneva Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether the amount of lean (fat-free) body mass before surgery can predict how much weight people lose in the two years after Roux-en-Y gastric bypass. Researchers will follow 91 adults with severe obesity who are scheduled for the procedure, measuring body composition, muscle strength, nutrition, and health changes. The goal is to find a simple way to forecast weight loss success and improve care.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If successful, this could help doctors better predict weight loss outcomes after gastric bypass and personalize pre-surgery advice.
What could go wrong: This is an observational study, not a treatment trial. It only looks for a link, not a cause, and results may not apply to all patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

morbid obesity Obesity

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

MORBID OBESITY REQUIRING BARIATRIC SURGERY

Contacts and locations

Locations

Geneva University Hospitals
RECRUITING

Geneva, Canton of Geneva, 1205, Switzerland

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