MedDataX Logo

A Follow-up Colonoscopy Examination in Patients Who Had Previously Undergone Screening Colonoscopy

NCT ID: NCT00280332

Last Updated: 2008-05-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

560 participants

Study Classification

OBSERVATIONAL

Study Start Date

2006-03-31

Study Completion Date

2007-11-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

* To determine the prevalence of colonic neoplasm in patients who had previously undergone screening colonoscopy
* To determine the optimal time interval for re-screening in average risk individuals
* To determine potential baseline characteristics that predicts adenoma recurrence

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Colorectal cancer (CRC) is the second commonest cancer in Hong Kong, and tends to be increasing. Screening for colorectal cancer can reduce the cancer incidence and mortality by detecting early lesions. However, the best interval for a follow up colonoscopy, particularly for those with normal baseline colonoscopy, remains largely unknown.

This study aim to determine the prevalence of colonic neoplasm in average-risk patients who had previously undergone screening colonoscopy and the optimal time interval for re-screening.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Colonic Cancer

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

colonic adenoma, colonic advanced neoplasm

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

A

colonic adenoma

colonoscopy

Intervention Type PROCEDURE

proform a follow up colonoscopy in the 5 year period from index colonoscopy

B

colonic without adenoma

colonoscopy

Intervention Type PROCEDURE

proform a follow up colonoscopy in the 5 year period from index colonoscopy

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

colonoscopy

proform a follow up colonoscopy in the 5 year period from index colonoscopy

Intervention Type PROCEDURE

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

follow up colonoscopy

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Subjects who are previously participated in one of our two screening colonoscopy studies \[Sung, Gastroenterol 2003; Leung, AJG 2004\]
* Asymptomatic on first screening colonoscopy
* Age\>50and \<75
* No family history of CRC
* No other colonoscopy except the baseline screening colonoscopy

Exclusion Criteria

* Subjects who refused consent
* Subjects who are not warrant follow up colonoscopy
Minimum Eligible Age

50 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Chinese University of Hong Kong

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Chinese University of Hong Kong

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Wai K Leung, MD

Role: PRINCIPAL_INVESTIGATOR

CUHK

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Endoscopy Center, Prince of Wales Hospital

Hong Kong (sar), , China

Site Status

Countries

Review the countries where the study has at least one active or historical site.

China

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

FUC

Identifier Type: -

Identifier Source: org_study_id