The goal of this clinical trial is to evaluate the efficacy, safety and tolerability of lactulose in bowel preparation in IBD patients. The main question it aims to answer is: Does lactulose have better efficacy, safety and tolerability than 3L-PEG? Participants will be divided into PEG group or Lactulose group at a 1:1 ratio by a random number method. Each patient will get a leaflet provided by hospital introducing bowel preparation methods and diet restriction before bowel preparation. They will have bowel preparation with different drugs according to group. The grade of bowel cleansing will be assessed through the Boston Bowel Preparation Scale (BBPS). The tolerability, satisfaction and safety of the two bowel preparation methods will be assessed through the patients self-administered questionnaires.
Age range
16 Years – 75 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
effective preparation rate
Timeframe: 5 minutes before the colonoscopy ends
incidence of adverse events
Timeframe: 2 hours after having bowel preparation
taste score evaluated by patients
Timeframe: 2 hours after having bowel preparation