- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03597204
CRC Screening for High Risk Population in HK
Colorectal Cancer (CRC) Screening in Hong Kong: an Analysis on Acceptability, Compliance, Diagnostic Accuracy and Clinical Outcomes
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:
- . Evaluate the knowledge, attitude, perception, practice, perceived obstacles and changes in choice of CRC screening among the screening participants;
- . Assess the levels of compliance across time among those who joined the screening programme, according to different subject characteristics;
- . Explore the diagnostic accuracy of faecal immunochemical tests among subjects with different characteristics;
- . 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;
- . Evaluate the association between bowel preparation, colonoscopy withdrawal time and adenoma detection rate among those who received colonoscopy;
- . Validation of the existing risk scoring systems for colorectal neoplasia from the literature, based on findings from subjects who received colonoscopy.
- . Explore potential associations among colorectal neoplasia detected in different colon sites.
Study Overview
Status
Conditions
Intervention / Treatment
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
- Evaluate the knowledge, attitude, perception, practice, perceived obstacles and changes in choice of CRC screening among the screening participants;
- Assess the levels of compliance across time among those who joined the screening programme, according to different subject characteristics;
- Explore the diagnostic accuracy of faecal immunochemical tests among subjects with different characteristics;
- 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;
- Evaluate the association between bowel preparation, colonoscopy withdrawal time and adenoma detection rate among those who received colonoscopy;
- Validation of the existing risk scoring systems for colorectal neoplasia from the literature, based on findings from subjects who received colonoscopy.
- 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
- 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
- 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.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Hong Kong, Hong Kong
- CUHK Jockey Club Bowel Cancer Education Centre
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Retrospective cohort
1. Subjects received CRC screening in CUHK JC Bowel Cancer Education Centre from 2008 up to 30 Sept 2015
Prospective cohort
- Subjects aged 40-75 who were asymptomatic of CRC from CUHK JC Bowel Cancer Education Centre
- Informed consent available
- Identified as having risk factors for CRC (defined as having a Asia Pacific Colorectal Screening (APCS) score 4-7; the presence of diabetes; body mass index ≥25 kg/m2; or the presence of family history of CRC)
Exclusion Criteria:
- Subject with any lower gastrointestinal (GI) symptoms (including lower GI bleeding, change in bowel habit, anemia and weight loss)
- Prior history of colonic diseases that might increase the risk of colorectal cancer (including colorectal neoplasm, inflammatory bowel disease)
- Examination of the colon (e.g. colonoscopy, barium enema or CT/MR of the colon) within the past 5 years
- History of colorectal surgery in the past
- Any contraindication for colonoscopy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: fecal immunochemical test (FIT)
Annual fecal immunochemical test (FIT) for selected high risk individuals to undergo CRC screening.
And colonoscopy for those with FIT positive result
|
Annual fecal immunochemical test (FIT) for selected high risk individuals to undergo CRC screening.
And colonoscopy for those with FIT positive result
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of subjects diagnosed colonic adenoma, advanced adenoma or cancer
Time Frame: Up to three years
|
The diagnostic accuracy of faecal immunochemical test in the selected high risk individuals.
The number of subjects diagnosed colonic adenoma, advanced adenoma or cancer will be divided by the total number of selected high risk subjects received fecal immunochemical test
|
Up to three years
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Joseph JY Sung, MD, PhD, Chinese University of Hong Kong
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CEHR
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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