Plain-English translation of NCT02024542 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This research study invites people who are having weight loss surgery (specifically Roux-en-Y gastric bypass) to participate in tracking how their body changes after the procedure. Researchers will collect blood, urine, and tissue samples before and after surgery to understand how the surgery affects metabolism, weight loss, and related health conditions like diabetes and high cholesterol.
Doctors know that weight loss surgery can dramatically improve health, but they don't fully understand exactly why and how the body changes at a chemical level. This study aims to fill that gap by studying what happens inside the body during and after surgery, which could help improve future treatments.
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You'll complete standard pre-surgery appointments at UC Davis Health System, including counseling and medical tests. Before surgery, you'll give blood, urine, and stool samples. During your gastric bypass surgery, doctors will collect small tissue samples. After surgery, you'll be monitored for weight loss and health improvements, with additional blood and urine samples collected when your doctor orders lab work during follow-up visits.
AI-generated summary from trial data · Jul 1, 2026 · Not medical advice
United States
Sponsor
University of California, Davis
Enrollment target
~500 participants
Started
February 2011
Primary completion
April 2035
Age range
18 Years – 55 Years
Last updated on clinicaltrials.gov in May 2026.
Reach out to the team running this trial. Response times vary — some teams are faster than others.
Central contact
Mohamed R Ali, MD
University of California Davis Health System
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.