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

NCT00280332 | Completed

• 1 other identifier: FUC
• Study Type: observational
• Target: 560
• Locations: 1 country
• Sites: 1

Brief Summary

• 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

Conditions

Colonic Cancer

Keywords

colonic adenoma, colonic advanced neoplasm

Outcome Measures

Primary Outcomes (1)

• The prevalence of advanced colonic adenoma in the re-screening population

  5 year from index colonoscopy

Secondary Outcomes (1)

• The time to adenoma adenoma development according to different baseline characteristics of patients and colonoscopy findings

  5 years from index colonoscopy

Study Arms (2)

A

colonic adenoma

Procedure: colonoscopy

B

colonic without adenoma

Procedure: colonoscopy

Interventions

colonoscopy PROCEDURE

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

Also known as: follow up colonoscopy

A; B

Eligibility Criteria

• Age: 50 Years - 75 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Subjects who are previously participated in one of our two screening colonoscopy studies \[Sung, Gastroenterol 2003; Leung, AJG 2004\]

You may qualify if:

• 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

You may not qualify if:

• Subjects who refused consent
• Subjects who are not warrant follow up colonoscopy

Sponsors & Collaborators

• Chinese University of Hong Kong: lead

Study Sites (1)

Endoscopy Center, Prince of Wales Hospital

Hong Kong (sar), China

Location

MeSH Terms

Conditions

Colonic Neoplasms

Interventions

Colonoscopy

Condition Hierarchy (Ancestors)

Colorectal Neoplasms; Intestinal Neoplasms; Gastrointestinal Neoplasms; Digestive System Neoplasms; Neoplasms by Site; Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Colonic Diseases; Intestinal Diseases

Intervention Hierarchy (Ancestors)

Endoscopy, Gastrointestinal; Endoscopy, Digestive System; Diagnostic Techniques, Digestive System; Diagnostic Techniques and Procedures; Diagnosis; Endoscopy; Diagnostic Techniques, Surgical; Digestive System Surgical Procedures; Surgical Procedures, Operative; Minimally Invasive Surgical Procedures

Study Officials

• Wai K Leung, MD

  CUHK

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: January 20, 2006
• First Posted: January 23, 2006
• Study Start: March 1, 2006
• Primary Completion: November 1, 2007
• Study Completion: November 1, 2007
• Last Updated: May 12, 2008

Record last verified: 2008-05

Locations

CN (1)