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OpenTrials
Completed

NCT Number: NCT00280332

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

* 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

Completed

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Key information

Conditions

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

Age range

50 year–75 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Endoscopy Center, Prince of Wales Hospital

Hong Kong (sar), China

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

colonoscopy

Procedure

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

Other names: follow up colonoscopy

Primary outcomes

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

    Time frame: 5 year from index colonoscopy

Secondary outcomes

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

    Time frame: 5 years from index colonoscopy

Sponsors and collaborators

Lead sponsor

Chinese University of Hong Kong

Other

Registry information

Important dates

Study start
2006
Primary completion
2007
Study completion
2007
First posted
Jan 23, 2006
Registry last updated
May 12, 2008

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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