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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05568810
Other study ID # A-ER-102-436
Secondary ID
Status Completed
Phase
First received
Last updated
Start date August 1, 2014
Est. completion date July 31, 2016

Study information

Verified date September 2022
Source National Cheng-Kung University Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The colorectal cancer is the first incidence and ranks the third cancer-death cause in Taiwan. Based on the Taiwan-national colon cancer screening program, early colorectal cancer detection rate and the survival are markedly improved. Besides to disclose the early cancer, there are vast populations to be disclosed with colon adenoma. Some of colon adenoma really presents as advanced colon adenoma (ACA) to carry higher risk of recurrence and even cancer progression. The current clinical guidelines raise strategy for colonoscopy surveillance based on the results of the index colonoscopy to categorize the patients into different risks of colon polyp recurrence and early detection of colorectal cancer. It is worthy to validate whether the real scenario of Taiwan colonoscopy surveillance can fulfill the guidelines worldwide. Furthermore, it shall be of clinical importance to elucidate out the high risky group who may be commonly disclosed during intense colonoscopy surveillance and to disclose with advanced adenoma. Accordingly, the domestic amending to the worldwide guideline shall be in need and need a more reliable biomarker to predict the recurrence of colon adenoma during surveillance colonoscopy. Concerning, cyclooxygenase-2 (COX-2) and DNA methyltransferases (DNMT) are involved during colorectal carcinogenesis via chronic inflammatory process and early tumorigenesis. This study proposes COX-2 and DNMT shall be potential biomarkers correlating to the recurrence of colon adenoma disclosed during surveillance colonoscopy in Taiwan. We thus conduct a prospective study, containing at least 1,400 cases, who will undergo surveillance colonoscopy in National Cheng Kung University Hospital in the next year. The study shall be a large-case study to answer whether the surveillance interval of the surveillance colonoscopy can be fulfilled to the suggestion of the 2012 United States Multi-society Task Force (USMTF) on colorectal cancer guideline. Factors that affect the detection of polyps in the surveillance will be explored. Based on the invitation of the patients to receive surveillance colonoscopy, the study also test whether COX-2 or DNMT over-expression are markers to predict polyps recurrence and to identify the risky patient deserve for earlier colonoscopy.


Recruitment information / eligibility

Status Completed
Enrollment 831
Est. completion date July 31, 2016
Est. primary completion date July 31, 2016
Accepts healthy volunteers
Gender All
Age group 18 Years to 99 Years
Eligibility Inclusion Criteria: - Patients who receive surveillance colonoscopy during the study period at National Cheng Kung University Hospital, a tertiary referral medical center in Taiwan, are enrolled in the study Exclusion Criteria: - poor bowel preparation, failed cecal intubation, contraindication for biopsy or polypectomy, patients with a history of inflammatory bowel disease, and those who are under 18 years old, decline to join the study, or do not have previous colonoscopy conducted in our institute

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
National Cheng-Kung University Hospital

Outcome

Type Measure Description Time frame Safety issue
Primary the compatibility of surveillance colonoscopy with the USMTF guideline in Taiwan To determine the compatibility of surveillance colonoscopy with the USMTF guideline for different histological features of colon adenoma at index colonoscopy in Taiwan usual the exam of colonoscopy: 10 min to 60 min
Primary Factors that affect the detection of polyps in the surveillance To explore factors that affect the detection of polyps in the surveillance usual the exam of colonoscopy: 10 min to 60 min
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