Clinical trial Recruiting at 1 site Interventional Ages 18 to 90

Discontinuation timing of GLP-1 receptor agonists before colonoscopy

Official title: Discontinuation Recommendations for GLP-1 Receptor Agonists Prior to Colonoscopy: A Randomized Controlled Trial in Taiwan.

Run by Fu Jen Catholic University Hospital · NCT07736963 · Data updated 2026-11-12

This study tests whether stopping GLP-1 receptor agonists for either 0 or 7 days before colonoscopy affects bowel prep quality and the need for a repeat procedure in adults undergoing colonoscopy.

More GLP-1 trials

Quick facts

Study typeInterventional
Ages18 Years to 90 Years
SexAll
Enrollment240 (estimated)
SponsorFu Jen Catholic University Hospital
Academic / other
Locations1 site (New Taipei, Taiwan)
StatusRecruiting
StartedJune 1, 2026
Main results expectedJune 1, 2027
Study endsJune 1, 2028
Registry record updatedSeptember 3, 2026
Trial IDNCT07736963 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18-70 scheduled for total colonoscopy, either current GLP-1 RA users who stop for the specified interval or non-users for comparison.

Probably not a fit

Patients unable to discontinue GLP-1 RAs due to clinical reasons or with comorbidities that preclude colonoscopy preparation may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This interventional study compares two discontinuation intervals of GLP-1 receptor agonists prior to colonoscopy to see which approach yields better bowel preparation. The trial focuses on adults aged 18-70 scheduled for total colonoscopy and evaluates bowel cleanliness and the potential need for a repeat procedure. It considers the pharmacologic effects of GLP-1 RAs on gastric emptying and motility. Participants who are not using GLP-1 RAs will also be eligible to contribute comparative data. The study is conducted at Fu Jen Catholic University Hospital in New Taipei, Taiwan, and is sponsored by the lead institution.

Why it matters

Potential benefit: If successful, the findings could inform clearer stopping guidelines to improve colonoscopy prep quality and reduce the need for repeat exams.

How similar studies have gone: Prior knowledge on GLP-1 RAs and colonoscopy prep is limited; this study addresses a relatively novel question with potential for practice-changing guidance.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Inclusion Criteria for non GLP-1 user:

  * Individuals who are scheduled to undergo total colonoscopy for any reasons
  * Age between 18 to 70 years.
  * ECOG Performance status is 0 or 1.
  * Written consent to participate in the study has been obtained.
  * Outpatient department patient
  * Stop at least 3 days if current using medications that promote or inhibit gastrointestinal motility.

Exclusion Criteria:

* • Presence of severe comorbid conditions that preclude the safe performance of colonoscopy (e.g., unstable angina, recent myocardial infarction, decompensated heart failure, chronic respiratory disease, or bleeding diathesis).

  * History of prior gastric, small bowel, or colorectal segmental resection (patients with isolated appendectomy are eligible).
  * Family history of hereditary colorectal cancer syndromes.
  * Current or prior diagnosis of inflammatory bowel disease.
  * Known colorectal polyposis syndromes.
  * Any other condition deemed inappropriate for study participation at the discretion of the treating physician.
  * Body mass index (BMI) \> 40 kg/m².
  * Diagnosis of liver cirrhosis.
  * Diagnosis of Parkinson's disease.
  * Diagnosis of dementia.
  * Use of tricyclic antidepressants or opioid medications for more than 3 months.

Where it's running

  • Fjuh
    New Taipei, Taiwan, Taiwan
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.