NCT00164944

Screening for Colorectal Neoplasm in First Degree Relatives of the Affected

Colonoscopic Screening in First-degree Relatives of Hong Kong Chinese Patients With Sporadic Colorectal Cancer: a Cohort Study With Case Control Analysis

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 748 (actual)
• Sponsor: Chinese University of Hong Kong · Academic / Other
• Sex: All
• Age: 40 Years – 70 Years
• Healthy volunteers: Not accepted

Summary

To determine the prevalence of colorectal neoplasms in first degree relatives of those affected with sporadic colorectal cancer using colonoscopy as a screening tool. The prevalence will be compared to that of a defined matched cohort.

Detailed description

Colorectal cancer is a second commonest tumor in Hong Kong and the second commonest cause of cancer related death. About 1 in 23 males will develop colorectal cancer in his life time. The disease tends to cluster in families. This may be a combination of factors including shared genes, shared environment or chance. Known familial syndromes occur in only about 5% of cases. The majority is not well understood and labelled sporadic colorectal cancer. The screening strategy in families of subjects with colorectal cancer has not been defined. Colonoscopy is among the most sensitive and specific screening tool for colorectal neoplasm. The current study determines the prevalence of adenomas among first degree relatives of patients diagnosed with colorectal cancer. To quantify risk in this cohort, a case control analysis is used. The prevalence of the cohort is compared to that of a control population. The control group consists of relatives of patients with normal colonoscopic findings during the same study period.

Conditions

• Colorectal Cancer Screening

Interventions

Type	Name	Description
PROCEDURE	Colonoscopy	To determine the adenomas during colonoscopy
PROCEDURE	Colonoscopy	To determine the adenomas during colonoscopy

Timeline

• Start date: 2004-04-01
• Primary completion: 2016-08-01
• Completion: 2017-04-06
• First posted: 2005-09-14
• Last updated: 2017-04-21

Locations

1 site across 1 country: China