An observational study in Colorectal Cancer and Polyps, sponsored by Gansu Provincial Hospital. Not yet recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-07-16.
Sponsored by Gansu Provincial Hospital · Observational
Postoperative endoscopic polyp recurrence correlation of colorectal cancer: a retrospective cohort open-label study
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.
6,541 studies on the registry are indexed under Colorectal Neoplasms; 1,667 are open to participants now.
This study's planned enrollment of 3,000 is above the median of 250 across 1,440 observational studies indexed under Colorectal Neoplasms.
Browse Colorectal Neoplasms studies →Gansu Provincial Hospital is the lead sponsor of 4 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
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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 or local recurrence； Clinical data is missing and can not be analyzed.
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corhort of colorectal cancer patients undergoing colonoscopy follow-up after surgery
Procedure: Endoscopic polypectomy
Endoscopic polypectomy
Adenoma recurrence after colorectal surgery
Postoperative colonoscopy review of colorectal cancer patients reveals adenoma recurrence
Time frame: Postoperative；follow up till 5 years
Colitisafter colorectal surgery
Postoperative colonoscopy review of colorectal cancer patients reveals adenoma recurrence
Time frame: Postoperative；follow up till 5 years
Plan to share: No
Start is estimated for Jul 2026; primary completion for Dec 2026, 5 months later.
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This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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Gansu Provincial Hospital