Using probiotics to prevent gallstones in patients after weight loss surgery

Probiotics for Gallstones in Post-bariatric Surgery Patients

Not applicable Interventional Shandong Linglong Yingcheng Hospital · NCT06287931

This study is testing whether taking probiotics can help prevent gallstones in people who have had weight loss surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment400 (estimated)
Ages20 Years to 60 Years
SexAll
SponsorShandong Linglong Yingcheng Hospital Research network
Locations1 site (Yantai, Shandong)
Trial IDNCT06287931 on ClinicalTrials.gov

What this trial studies

This study investigates the effectiveness of probiotics in preventing gallstone formation in patients who have undergone bariatric surgery. It aims to address the increased risk of gallstones associated with rapid weight loss and changes in bile composition following surgery. Participants will be divided into groups receiving either probiotics or ursodeoxycholic acid to evaluate their impact on gallstone prevention and gastrointestinal quality of life. Regular follow-ups will be conducted to monitor outcomes and adherence to the treatment regimen.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 20 to 60 who are undergoing bariatric surgery for morbid obesity and are willing to participate in follow-up assessments.

Not a fit: Patients who already have gallstones prior to bariatric surgery or those unwilling to take probiotics or participate in follow-ups may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a non-invasive method to reduce the incidence of gallstones in post-bariatric surgery patients, improving their overall health and quality of life.

How similar studies have performed: While the use of ursodeoxycholic acid has been studied for gallstone prevention, the application of probiotics in this context is relatively novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients receiving bariatric surgery for morbid obesity
* Patiets at ages between 20 to 60 y/o
* Patients willing to follow up regulary after bariatric surgery

Exclusion Criteria:

* Patients having gallstones before bariatric surgery
* Patients refusing taking probiotics or refusing regular follow up after bariatric surgery

Where this trial is running

Yantai, Shandong

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Bariatric Surgery CandidateGallstoneGallstone AttackGastrointestinal Quality of Life IndexProbiotics
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.