Skip to content

Validation of a Prediction Model for Inadequate Bowel Preparation

Validation of a Prediction Model for Inadequate Bowel Preparation Before Colonoscopy Based on a Systematic Review and Meta-analysis

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06438237
Enrollment
2360
Registered
2024-05-31
Start date
2024-05-06
Completion date
2024-12-30
Last updated
2025-08-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bowel Preparation, Colonoscopy

Keywords

Bowel preparation for colonoscopy

Brief summary

We have developed a novel inadequate bowel preparation prediction model based on a systematic review and meta-analysis. The goal of this multicenter observational study is to validate the accuracy of this model.

Detailed description

The primary outcome is quality of bowel preparation. The secondary outcomes include polyp/adenoma detection rate, willingness of undergoing colonoscopy again and adverse events.

Interventions

PROCEDUREBowel preparation before colonoscopy

Patients use purgative for bowel cleansing before colonoscopy.

Sponsors

General Hospital of Shenyang Military Region
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
OTHER

Eligibility

Sex/Gender
ALL
Age
18 Years to 94 Years
Healthy volunteers
Yes

Inclusion criteria

1. adult patients (age is ≥18 years old); 2. patients undergoing colonoscopy; 3. written informed consent.

Exclusion criteria

1. patients undergoing emergent colonoscopy; 2. patients with major psychiatric disorders; 3. pregnant or breast feeding patients; 4. patients with contraindications for colonoscopy (e.g., heart failure, renal insufficiency); 5. patients suspected to have intestinal obstruction, stenosis or perforation; 6. poor compliance with the bowel preparation protocol (poor compliance is indicated if the dose of medication was \< 75% of the prescribed dose; 7. incomplete colonoscopy because of other circumstances apart from inadequate cleansing 8. patients previously enrolled in this study.

Design outcomes

Primary

MeasureTime frameDescription
Quality of bowel preparationDuring the procedure of colonoscopyA total BBPS score ≥6 with BBPS score ≥2 for each colon segment was considered to have adequate bowel preparation. Each segment of the colon is scored from 0 to 3, with higher scores indicating superior cleansing, and summed for a total score that can range from 0 to 9.

Secondary

MeasureTime frameDescription
Adenoma and/or polyp detection rateDuring the procedure of colonoscopyProportion of patients with at least one adenoma and/or polyp detected during colonoscopy
Number of polyps and/or adenomasDuring the procedure of colonoscopyNumber of polyps and/or adenomas detected during colonoscopy
Adverse eventsBefore the procedure of colonoscopyIncidence of abdominal pain, bloating, nausea/vomiting after intake of purgative.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026