CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 44,601 enrolled
Drug / intervention
SMS reminders to enhance colorectal cancer screening +2 morebehavioral
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04343950
NCT04343950N/ACompleted
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Implementation of Text Messaging (SMS) as an Improvement Tool in Population-based Cancer Screening Programs

Institut Català d'Oncologia·interventional·Posted Apr 14, 2020·Updated Sep 24, 2025

In Brief

A clinical study evaluating SMS reminders to enhance colorectal cancer screening, SMS reminders to return the fecal immunochemical test at the pharmacy in CRC screening:, and 1 other intervention for Mass Screening and 2 related conditions. Completed, enrolled 44,601 participants across 1 site.

Detailed Summary

The aim of this project is to assess the impact on health and economics of the implementation of text messaging (SMS) in cancer screening programs. Three interventions with SMS will be evaluated through community trials. In the colorectal cancer screening program the following interventions will be tested: a) Participation reminder: six weeks after sending the invitation letter of the colorectal cancer program if there has not been a response, a reminder SMS will be sent in front of the usual method by letter; b) Reminder to return the fecal occult blood test: SMS reminder of test delivery versus no intervention. This reminder will be sent to the individuals who have gone to the pharmacy to pick up a fecal occult blood test and they have not returned it after 14 days. The impact on participation will be analyzed and, if applicable, the proportion of advanced neoplasms will be calculated by increase in participation. In the breast cancer screening program, the invitation by SMS versus the usual invitation by letter will be studied in women who had participated in the previous screening round. The impact on participation will be analyzed. A cost-effectiveness analysis of the three interventions will be carried out. The incremental cost ratio of the interventions between cost variation and effectiveness variation will be calculated.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsMass Screening, Colorectal Cancer, Breast Cancer
CountriesSpain
CollaboratorsUniversity of Dundee, University of Barcelona, University Rovira i Virgili

Timeline

N/ACompletedFinished
202120222023202420252026
First PostedApr 14, 2020
Enrollment StartJun 5, 2021
Primary CompletionOct 31, 2022
Study CompletionDec 31, 2022
TodayJul 2, 2026
Enrollment to primary: 1.4 yearsPosted 6.2 years ago

Interventions

SMS reminders to enhance colorectal cancer screeningbehavioral

Individual randomization will be used. Individuals assigned to the experimental arm with a wrong phone number will get a reminder letter (protocol analysis).

SMS reminders to return the fecal immunochemical test at the pharmacy in CRC screening:behavioral

Individual randomization will be used. Individuals with a wrong phone number assigned to the experimental arm will not get any reminder (protocol analysis).

Invitation by SMS to previous participants in breast cancer screening:behavioral

Individual randomization. Women assigned to the experimental arm and with a wrong phone number will get an invitation letter (protocol analysis).