Screening for CRC Using a Mixed Strategy of Sigmoidoscopy and Colonoscopy in Average-Risk Population According to Age

Colorectal Cancer Clinical Trial

Official title: Screening for CRC Using a Mixed Strategy of Sigmoidoscopy and Colonoscopy in Average-Risk Population According to Age

Status Recruiting

Clinical Trial Summary

BACKGROUND: Primary screening with sigmoidoscopy would miss a substantial proportion of advanced proximal neoplasia (APN), but screening with universal colonoscopy is costly. The aim of this study is to assess the efficacy of mixed strategy which uses sigmoidoscopy for younger patients and colonoscopy for older patients.

MATERIALS and METHODS: We analyzed an established database containing consecutive average-risk adults aged 50 or older who underwent screening colonoscopy as part of health check-up. We assessed the efficacy of mixed screening strategy using colonoscopy for persons aged at and above a certain cut-off age and sigmoidoscopy for persons aged below that age. Those who underwent sigmoidoscopy initially would be referred for subsequent colonoscopy if distal sentinel lesion was detected.

Clinical Trial Description

Because the prevalence of proximal colon cancer and APN was higher in older patients15, a greater proportion of advanced colonic neoplasia or cancer would be missed if colonoscopy was not performed for older patients. So if we develop a mixed strategy to offer sigmoidoscopy for younger patients and reserve colonoscopy for older patients, we might be able to detect more APN with fewer colonoscopic procedures. We aimed to determine an optimal cut-off age and choose an appropriate distal sentinel lesion for subsequent colonoscopy. ;

Study Design

Observational Model: Defined Population, Primary Purpose: Screening, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

• Colorectal Cancer
• Colorectal Neoplasms

• NCT number: NCT00173277
• Study type: Observational
• Source: National Taiwan University Hospital
• Contact: Jyh-ming Liou, MD
• Phone: 886-2-23123456
• Email: dtmed046@ha.mc.ntu.edu.tw
• Status: Recruiting
• Phase: N/A
• Start date: June 2003
• Completion date: July 2004