The Correlation of Postoperative Polyp Recurrence and Colorectal Cancer

Postoperative Endoscopic Polyp Recurrence Correlation With Pathological Status Classification of Colorectal Cancer: a Multicenter, Retrospective Cohort Open-label Study

Postoperative endoscopic polyp recurrence correlation of colorectal cancer: a retrospective cohort open-label study

Study Overview

• Status: Not yet recruiting
• Conditions: Colorectal Cancer; Polyps
• Intervention / Treatment: Procedure: Endoscopic polypectomy

Detailed Description

This study aims to address the gaps in existing research by focusing on the high-risk group of colorectal cancer patients post-radical surgery, systematically reviewing potential factors influencing polyp recurrence, further clarifying independent risk factors for postoperative polyp recurrence in this population, and constructing a predictive model that better aligns with the clinical needs of such patients, thereby providing more precise references for developing personalized follow-up strategies in clinical practice.

• Study Type: Observational
• Enrollment (Estimated): 3000

Contacts and Locations

Study Locations

• China
  • Gansu
    • Lanzhou, Gansu, China, 730000
      • Gansu Provincial Hospital
      • Contact: Xu Zhang, M.D.; Phone Number: +8613919497484; Email: xzhang2019@lzu.edu.cn

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Probability Sample

Study Population

Patients who underwent radical surgery for colon cancer at Gansu Provincial People's Hospital from January 2015 to December 2024 and regularly completed colonoscopy follow-up after surgery were selected as the research subjects.After the completion of the prediction model construction, we will include 3-5 external queues for external validation.

Description

Inclusion Criteria:

Patients who underwent radical surgery for colon cancer at Gansu Provincial People's Hospital from January 2015 to December 2024 and regularly completed colonoscopy follow-up after surgery were selected as the research subjects. Inclusion criteria:

Diagnosed with colon cancer through histopathological examination ; Undergoing radical R0 resection ； Complete Colonoscopy follow-up after surgery less than 12 months.

Exclusion Criteria:

With adenomatous polyposis , Lynch syndrome and Peutz-Jeghers syndrome； Combined inflammatory bowel disease; Polyp were present before surgery and have not been completely removed； With distant metastasis or local recurrence； Clinical data is missing and can not be analyzed.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Postoperative endoscopic polyp recurrence of colorectal cancer; Corhort of colorectal cancer patients undergoing colonoscopy follow-up after surgery	Procedure: Endoscopic polypectomy; Endoscopic polypectomy

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Adenoma recurrence after colorectal surgery	Postoperative colonoscopy review of colorectal cancer patients reveals adenoma recurrence	Postoperative；follow up till 5 years
Colitisafter colorectal surgery	Postoperative colonoscopy review of colorectal cancer patients reveals adenoma recurrence	Postoperative；follow up till 5 years

Collaborators and Investigators

• Sponsor: Gansu Provincial Hospital

Publications and helpful links

General Publications

• Galjart B, Hoppener DJ, Aerts JGJV, Bangma CH, Verhoef C, Grunhagen DJ. Follow-up strategy and survival for five common cancers: A meta-analysis. Eur J Cancer. 2022 Oct;174:185-199. doi: 10.1016/j.ejca.2022.07.025. Epub 2022 Aug 27.
• IJspeert JEG, Bretthauer M, Jover R, Dekker E; Dutch colonoscopy surveillance working group. Balancing benefit and burden: rethinking post-polypectomy colonoscopy surveillance strategies. Lancet Gastroenterol Hepatol. 2026 Jun 19:S2468-1253(26)00128-7. doi: 10.1016/S2468-1253(26)00128-7. Online ahead of print.
• Ebert MP, Reichermeier S, Klug L, Lynen Jansen P, Pox C. Clinical Practice Guideline: Colorectal Cancer-Diagnosis, Treatment, Prevention, and Long-Term Follow-Up Care. Dtsch Arztebl Int. 2025 Dec 26;122(26):729-734. doi: 10.3238/arztebl.m2025.0196. Epub 2025 Dec 26.
• Laven-Law G, Symonds EL, Simpson K, Coats M, De Silva M, Hollington P, Cock C, Wassie MM. Risk of Advanced Colorectal Neoplasia at Follow-up Colonoscopy After Synchronous Adenoma and Clinically Significant Serrated Polyp. Clin Gastroenterol Hepatol. 2026 Feb;24(2):544-553. doi: 10.1016/j.cgh.2025.07.023. Epub 2025 Aug 5.

Study record dates

Study Major Dates

• Study Start (Estimated): July 1, 2026
• Primary Completion (Estimated): December 31, 2026
• Study Completion (Estimated): December 31, 2026

Study Registration Dates

• First Submitted: July 3, 2026
• First Submitted That Met QC Criteria: July 10, 2026
• First Posted (Actual): July 16, 2026

Study Record Updates

• Last Update Posted (Actual): July 16, 2026
• Last Update Submitted That Met QC Criteria: July 10, 2026
• Last Verified: July 1, 2026

More Information

Terms related to this study

• Keywords: Colorectal Cancer; Prognostic model; Pathomics; Polyp recurrence
• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Pathological Conditions, Anatomical; Intestinal Diseases; Gastrointestinal Neoplasms; Digestive System Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Intestinal Neoplasms; Rectal Diseases; Colonic Diseases; Pathological Conditions, Signs and Symptoms; Colorectal Neoplasms; Polyps
• Other Study ID Numbers: Colorectal cancer and polyp

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No