This multi-center, prospective, randomized controlled trial evaluates whether disease subtype-based active video education improves bowel preparation quality in patients with inflammatory bowel disease (IBD) undergoing colonoscopy. A total of 600 IBD patients from 13 centers will be randomized 1:1 to standard education plus subtype-specific video education (intervention group) or standard education alone (control group). The primary outcome is the Boston Bowel Preparation Scale (BBPS) score.
Age between 18 and 75 years, inclusive.
Confirmed diagnosis of Ulcerative Colitis (UC) or Crohn's disease (CD) according to standard clinical guidelines.
Scheduled for elective colonoscopy for IBD monitoring or disease activity assessment.
Able to understand written and verbal instructions and to use a smartphone to view video education materials.
Absolute contraindications to colonoscopy, including acute gastrointestinal perforation, fulminant colitis, toxic megacolon, or hemodynamic instability.
History of total or subtotal colectomy.
Acute or chronic intestinal obstruction.
Severe cardiac, pulmonary, hepatic, or renal insufficiency (eGFR <30 mL/min/1.73m², NYHA class III/IV).
Parallel
Disease Subtype-Based Active Video Education
BehavioralA structured, subtype-specific educational video program tailored for patients with inflammatory bowel disease (IBD). The videos are customized based on IBD subtype (ulcerative colitis/Crohn's disease), disease activity (active/remission), and Crohn's disease behavior (stricturing/fistulizing). It covers key topics including dietary restrictions, laxative intake instructions, symptom management, and practical problem-solving strategies to improve understanding and adherence to bowel preparation protocols. The video is delivered via WeChat link.
standard bowel preparation education
Behavioralstandard bowel preparation education
Bowel Preparation Quality (Boston Bowel Preparation Scale, BBPS)
The Boston Bowel Preparation Scale (BBPS) is a validated scoring system to assess the cleanliness of three colonic segments: right colon (including cecum and ascending colon), transverse colon (including hepatic flexure and splenic flexure), and left colon (including descending colon, sigmoid colon, and rectum). Each segment is scored from 0 (unprepared) to 3 (excellent) by the endoscopist during withdrawal. The total BBPS score ranges from 0 to 9. Higher scores indicate better bowel preparation.
Adequate Bowel Preparation Rate
Proportion of patients with adequate bowel preparation, defined as total BBPS score ≥ 6.
Excellent Bowel Preparation Rate
Proportion of patients with excellent bowel preparation, defined as total BBPS score ≥ 8.
Cecal Intubation Rate
Proportion of patients in whom the cecum is successfully intubated during colonoscopy.
Cecal Intubation Time
Time (in seconds) required to reach and intubate the cecum, measured from the time the colonoscope is inserted until cecal intubation is confirmed.
Click on the lead sponsor to view all of their trials.
Jie Liang
Lead sponsor
Xijing Hospital of Digestive Diseases
Sponsor institution
Xijing Hospital of Digestive Diseases
Collaborator
Peking Union Medical College Hospital
Collaborator
Shengjing Hospital
Collaborator
RenJi Hospital
Collaborator
Changhai Hospital
Collaborator
First Affiliated Hospital of Xinjiang Medical University
Collaborator
Affiliated Hospital of Qinghai University
Collaborator
Second Affiliated Hospital of Xi'an Jiaotong University
Collaborator
Air Force 986 Hospital
Collaborator
Shanxi Yuncheng Central Hospital
Collaborator
Ruijin Hospital
Collaborator
Changzhi Medical College
Collaborator
Linfen Central Hospital
Collaborator
