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Spots Global Cancer Trial Database for CRC Screening for High Risk Population in HK

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Trial Identification

Brief Title: CRC Screening for High Risk Population in HK

Official Title: Colorectal Cancer (CRC) Screening in Hong Kong: an Analysis on Acceptability, Compliance, Diagnostic Accuracy and Clinical Outcomes

Study ID: NCT03597204

Study Description

Brief Summary: Colorectal neoplasm in Asia is now increasingly common and is rising in an alarming manner in Hong Kong. Population-based screening for colorectal cancer (CRC) should be implemented. With the establishment of the CUHK JC Bowel Cancer Education Centre in 2008, about 10,000 asymptomatic subjects aged 50-70 years have completed screening by either faeca immunochemical test (FIT)or colonoscopy till December 2012. From 2013 onwards, the centre invites subjects aged 40-70 years with risk factors for CRC to undergo screening by FIT on a yearly basis. If FIT result is positive, according to local practice, they will be offered a routine colonoscopy as they will be treated as symptomatic. Currently, about 2,500 subjects have received CRC screening in this new project. There will be 2,500 subjects more to be recruited to this till 31 December 2017. The investigators would like to carry out a prospective cohort study of these 2,500 subjects and also retrospectively review the cohort of 12,500 subjects who received CRC screening in the CUHK JC Bowel Cancer Education Centre. The present study aims to: 1. . Evaluate the knowledge, attitude, perception, practice, perceived obstacles and changes in choice of CRC screening among the screening participants; 2. . Assess the levels of compliance across time among those who joined the screening programme, according to different subject characteristics; 3. . Explore the diagnostic accuracy of faecal immunochemical tests among subjects with different characteristics; 4. . Evaluate the risk factors for colorectal neoplasia and if applicable, devise and validate a risk scoring system for prediction of neoplasia in different colon sites; 5. . Evaluate the association between bowel preparation, colonoscopy withdrawal time and adenoma detection rate among those who received colonoscopy; 6. . Validation of the existing risk scoring systems for colorectal neoplasia from the literature, based on findings from subjects who received colonoscopy. 7. . Explore potential associations among colorectal neoplasia detected in different colon sites.

Detailed Description: BACKGROUND Colorectal neoplasm in Asia is not less common compared to that of the Western population and screening for colorectal cancer (CRC) should be implemented. In the Asia Pacific Consensus for Colorectal Cancer, Fecal Occult Blood Test (FOBT) was recommended as the preferred test in resource limited areas in Asia. Yet, the preference of Asian in the options for CRC screening might be different. In a recent study from Hong Kong, most subjects preferred to use colonoscopy instead of stool tests as the screening tool. A study from Asia showed that fecal immunochemical test (FIT) might be preferred because it obviates the need for dietary control. Educating the public about different options available is an important method to change the health seeking behavior of subjects. The CUHK JC Bowel Cancer Education Centre was established in 2008 with full funding from the Hong Kong Jockey Club Charities Trust. About 10,000 subjects received CRC screening by either FIT or colonoscopy till 31 December 2012. From 2013 onwards, the centre invites subjects aged 40-70 years with risk factors for CRC to undergo screening by FIT on a yearly basis. If FIT result is positive, according to local practice, they will be offered a routine colonoscopy as they will be treated as symptomatic. Currently, a total of about 2,500 asymptomatic subjects have received CRC screening in this new project and the Centre will continue to recruit 2,500 subjects more till 31 December 2017. To inform future screening policy for implementation of population-based screening, it is important to explore the different aspects of this community-based CRC screening programme which include various indicators of programmatic performance. STUDY AIMS 1. Evaluate the knowledge, attitude, perception, practice, perceived obstacles and changes in choice of CRC screening among the screening participants; 2. Assess the levels of compliance across time among those who joined the screening programme, according to different subject characteristics; 3. Explore the diagnostic accuracy of faecal immunochemical tests among subjects with different characteristics; 4. Evaluate the risk factors for colorectal neoplasia and if applicable, devise and validate a risk scoring system for prediction of neoplasia in different colon sites; 5. Evaluate the association between bowel preparation, colonoscopy withdrawal time and adenoma detection rate among those who received colonoscopy; 6. Validation of the existing risk scoring systems for colorectal neoplasia from the literature, based on findings from subjects who received colonoscopy. 7. Explore potential associations among colorectal neoplasia detected in different colon sites. METHODOLOGY Retrospective cohort Demographic data, health behavior information and clinical outcomes of subjects who received CRC screening in CUHK Bowel Cancer Education Centre from December 2008 to Sept 2015 will be retrospectively reviewed without consent and analyzed. Prospective cohort 1. Study subjects will be invited to join the study via routine health talk of a CRC screening program organized by CUHK JC Bowel Cancer Education Centre 2. Each eligible subject completed a self-administered survey, which consists of sociodemographic information, family history of CRC for a first-degree relative, past medical history, and use of chronic medications. The completeness of questionnaires is checked afterwards. Trained volunteers assist survey completion for the relatively illiterate participants. The investigators used a quantitative FIT (OC Sensor). Participants received information on procedures for collecting the FIT samples at home, according to the manufacturer's instructions. They are requested to return their collection tubes containing faecal specimens to the centre 6 days within the stool collection. For those with negative FIT, they will be reminded to continue the FIT screening on a yearly basis till 2018. For those subjects with FIT positive findings, according to local practice, they will be offered a routine colonoscopy as they will be treated as symptomatic. Subjects who undergo colonoscopy may receive a phone-call follow up every year for the period of the study to monitor the clinical outcome of the subject. Subjects develop symptoms suggestive of colorectal neoplasm will be worked up by the original team of investigators.

Keywords

Eligibility

Minimum Age: 40 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: Yes

Locations

CUHK Jockey Club Bowel Cancer Education Centre, Hong Kong, , Hong Kong

Contact Details

Name: Joseph JY Sung, MD, PhD

Affiliation: Chinese University of Hong Kong

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

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