NCT06261008

Brief Summary

In Hong Kong, Colorectal cancer ranks second in both cancer incidence and mortality. The government-subsidized population-based CRC screening program (the Program) was launched for asymptomatic individuals aged 50-75 years to undergo biennial FIT screenings. A subsidized follow-up colonoscopy is offered to participants with positive FIT results. Participants are advised to repeat the FIT screening 2 years after receiving a negative result. An automated noninteractive short message service (SMS) text reminder, used by the Program as standard care (SC), is delivered to participants who are due for repeat FIT. According to unpublished data, despite SC, only 34% of participants adhere to biennial repeat FIT in the CRC screening program. Nonadherence to repeat FIT screening is caused by forgetfulness and is associated with an individual's psychological health behaviour.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
370

participants targeted

Target at P75+ for not_applicable

Timeline
0mo left

Started Jun 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress99%
Jun 2024Jun 2026

First Submitted

Initial submission to the registry

December 4, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

February 15, 2024

Completed
4 months until next milestone

Study Start

First participant enrolled

June 1, 2024

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 26, 2025

Completed
1.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

June 26, 2026

Expected
Last Updated

May 17, 2024

Status Verified

May 1, 2024

Enrollment Period

10 months

First QC Date

December 4, 2023

Last Update Submit

May 16, 2024

Conditions

Keywords

colorectal cancer, screening, fecal immunochemical test

Outcome Measures

Primary Outcomes (1)

  • adherence rate

    The primary outcome will be the repeat FIT screening adherence rate defined as returning completed FIT kits within 3 months after the repeat FIT due date in 2024.

    3 months

Secondary Outcomes (5)

  • the number of days to repeat FIT

    6 months

  • costs incurred in each study arm

    6 months

  • uptake rate in positive FIT

    12 months

  • detection rate in positive FIT

    12 months

  • qualitative factors associated with repeat FIT adherence

    12 months

Study Arms (2)

Standard Care

NO INTERVENTION

An automated noninteractive short message service (SMS) text reminder, used by the Program as standard care (SC), is delivered to participants who are due for repeat FIT.

Telehealth Intervention group

EXPERIMENTAL

Subjects randomized to the Telehealth Intervention (TI) group will receive the SC as well as an interactive TI with interactive health education messages via a WhatsApp-based chatbot on the repeat FIT due date. All subjects will be followed up on WhatsApp at 3 months after their repeat FIT due date and asked about their repeat FIT status.

Behavioral: TI group

Interventions

TI groupBEHAVIORAL

CRC screening is arranged by referring the participants to the government-subsidized population-based CRC screening program. Our center is a PCP clinic offering FIT screenings under the Program. Colonoscopy is arranged if the FIT result is positive. Participants are instructed to repeat FIT at any PCP clinic 2 years after receiving a negative result. Based on the 34% local FIT screening adherence rate under SC and the assumption of improved FIT adherence to 49% after interactive TI, a minimum sample size of 332 subjects (166 per group) is required to achieve a statistical significance of p\<0.05 and power of 80%. Assuming that 10% of the subjects will drop out, be lost to follow-up, or have incomplete chatbot conversations, the required sample size is rounded up to 370 (185 per group)

Telehealth Intervention group

Eligibility Criteria

Age50 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years old
  • already enrolled in the Program with negative FIT results in 2022
  • either the participants themselves or their family members / caregivers have access to and agree to be contacted via WhatsApp
  • ability to understand Chinese

You may not qualify if:

  • who have incomplete conversations with the chatbot, lack of access to WhatsApp, or are unable to provide informed consent will be excluded

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre of Digestive Health, Prince of Wales Hospital

Hong Kong, Hong Kong

Location

MeSH Terms

Conditions

Colorectal Neoplasms

Condition Hierarchy (Ancestors)

Intestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal DiseasesRectal Diseases

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
There will no masking
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Patient will be randomized into either standard care or telehealth intervention group
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant professor

Study Record Dates

First Submitted

December 4, 2023

First Posted

February 15, 2024

Study Start

June 1, 2024

Primary Completion

March 26, 2025

Study Completion (Estimated)

June 26, 2026

Last Updated

May 17, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

There will be no plan to share IPD

Locations