Using a smartphone app to improve bowel preparation for colonoscopy

The Effect of Smartphone Application on the Quality of Bowel Preparation for Colonoscopy

PHASE4 · Mahidol University · NCT06444724

This study is testing whether a smartphone app can help people better prepare for a colonoscopy compared to standard instructions.

Quick facts

PhasePHASE4
Study typeInterventional
Enrollment488 (estimated)
Ages18 Years and up
SexAll
SponsorMahidol University (other)
Locations1 site (Bangkok Noi, Bangkok)
Trial IDNCT06444724 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to compare the effectiveness of bowel preparation methods for elective colonoscopy by utilizing a smartphone application for enhanced patient education versus standard verbal instructions. Participants will be randomly assigned to either the app group, which receives guidance through video media, or the control group, which receives traditional pamphlets and verbal instructions. Both groups will follow the same purgative regimen and dietary restrictions, and the quality of bowel preparation will be assessed using the Boston Bowel Preparation Scale by blinded endoscopists. The study is conducted at Siriraj Hospital in Bangkok, Thailand.

Who should consider this trial

Good fit: Ideal candidates include adults over 18 who require a colonoscopy and can use the Line application on their mobile phones.

Not a fit: Patients with a history of colonic resection, inflammatory bowel disease, or those classified as ASA level 3 or higher may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to improved bowel preparation quality, resulting in better colonoscopy outcomes for patients.

How similar studies have performed: While the use of smartphone applications for patient education is gaining traction, this specific approach to bowel preparation is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients aged over 18 with an indication for colonoscopy
* Able to access and use Line applications on mobile phones

Exclusion Criteria:

* Patients with a history of colonic resection
* Patients with inflammatory bowel disease, polyposis syndrome, American Society of Anesthesiology (ASA) classification level 3 or higher
* Patients with a history of prior colonoscopy within 1 year.

Where this trial is running

Bangkok Noi, Bangkok

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.

View on ClinicalTrials.gov →

Conditions: Colonoscopy, Bowel Preparation, Quality, Smartphone Application, Smartphone application, Bowel preparation

Last reviewed 2026-05-15 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.