CompletedNot Applicable

Risk of Metachronous Advanced Colorectal Neoplastic Among Individuals With Varying Numbers of Non-Advanced Adenomas Detected During Screening Colonoscopy

China2,955 participantsStarted 2025-09-01

Plain-language summary

A retrospective observational study to evaluate the risk of metachronous advanced colorectal neoplastic (ACRN) among individuals with varying numbers of non-advanced adenomas (NAA) detected during screening colonoscopy

Who can participate

SexALL

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Inclusion Criteria: * First-time screening colonoscopy * Only non-advanced adenomas (no villous features, no high-grade dysplasia, and diameter \<10 mm) were detected during first-time screening colonoscopy * Individuals with at least one surveillance colonoscopy * Complete electronic medical record and pathology information Exclusion Criteria: * Inadequate bowel preparation (BBPS \< 6) * Emergency colonoscopy * History of colorectal cancer * Incomplete pathology information or incompletely resected polyps * Screening colonoscopies performed by endoscopists with a low dynamic adenoma detection rate (ADR \< 15%) * Follow-up duration \< 6 months

What they're measuring

Incidence of Metachronous Advanced Colorectal Neoplasia

Timeframe: Through study completion, an average of 1 month

Trial details

NCT IDNCT07302139

SponsorFudan University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2025-09-30

View on ClinicalTrials.gov More Colorectal Adenoma trials