Effectiveness of SMS Invitation on Colorectal Cancer Screening on 45-49-Year-Olds

The goal of this study is to learn if sending text message invitations increases participation in colorectal cancer screening among 45-49 year olds in Yingge District, New Taipei City. It will also assess the effectiveness of this method. The main questions it aims to answer are: •Does sending text message invitations increase the number of residents who complete fecal occult blood test (FOBT)? This study will compare a group receiving text message invitations to a control group receiving standard notifications to see if text messages are an effective way to increase screening rates. Participants will: * Be randomly assigned to either receive text message invitations or standard notifications. * The intervention group will receive an initial text and a reminder text one week later. * The control group will receive standard notifications, and after one month will receive the same text message. * The study will track who obtains a FOBT kit and who completes the test within a three-month period.

NCT Number	NCT07112729
Lead Sponsor	Chang Gung University
Conditions	No Condition
Enrollment	6,708 participants
Start Date	2025-08-07
Primary Completion	2025-09-04 (estimated)
Study Completion	2025-09-18 (estimated)
Updated on ClinicalTrials.gov	2026-02-03