Recruiting NCT04815525

The Longterm Risk of Advanced Colorectal Neoplasia After Colonoscopy - A Population-based Cohort Study in Hong Kong

— Observational Colorectal Neoplasia Colorectal Cancer

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied: This is an observational study: the protocol does not assign a study treatment.
Who it may be relevant to: Registry conditions: Colorectal Neoplasia, Colorectal Cancer. Basic parameters: No limits · All.
What needs checking: Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place: Hong Kong
Next step: Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Overview

The primary objective of this study is to analyze the 15-year cumulative incidence of advanced colorectal neoplasia and CRC-related mortality after the index colonoscopy.

Detailed description

This is a territory-wide retrospective observational cohort study using the Clinical Data Analysis and Reporting System (CDARS). We will identify patients from CDARS with colonoscopy performed from 1 January 2000 to 31 October 2020. Other relevant diagnoses, procedures, concomitant drugs, laboratory parameters and pathology results will be retrieved and studied.

Primary outcome measures

Culumative incidence of advanced colorectal neoplasia [Time frame: 15 years]

Secondary outcome measures (1)

CRC-related mortality rate [Time frame: 15 years]

Eligibility criteria

Inclusion criteria

1\. All patients with colonoscopy performed in HA hospitals during the study period would be eligible for screening.

Exclusion criteria

1\. Patients with documented personal history of colorectal cancers before the study period would be excluded.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Observational model: Cohort

Study locations

Hong Kong · 1 center

Prince of Wales Hospital — Shatin

Identifiers

NCT: NCT04815525 · 2020.597

Primary sources (government registries)

ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗