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EFFECTIVENESS OF EARLY INFORMATION AND ENDORSMENT BY GP TO INCREASE COLONOSCOPY FOLLOW-UP AND REDUCE DELAYS IN PEOPLE WITH A POSITIVE COLORECTAL CANCER SCREENING TEST. (SUIVICOLO)

EFFECTIVENESS OF EARLY INFORMATION AND ENDORSMENT BY GP TO INCREASE COLONOSCOPY FOLLOW-UP AND REDUCE DELAYS IN PEOPLE WITH A POSITIVE COLORECTAL CANCER SCREENING TEST, A RANDOMISED CONTROLLED TRIAL. (SUIVICOLO)

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07520578
Acronym
SUIVICOLO
Enrollment
2000
Registered
2026-04-09
Start date
2026-03-24
Completion date
2028-10-24
Last updated
2026-09-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colorectal Cancer Screening

Keywords

Colonoscopy, Fecal immunochemical test

Brief summary

To be effective, organized colorectal cancer screening requires good adherence to diagnostic colonoscopy in the event of a positive test. In France, the rate of diagnostic colonoscopy following a positive colorectal cancer screening test is less than 85%, and the median delay is close to 90 days. After receiving their positive result from the laboratory, individuals with no known follow-up are contacted only six months later by the Regional Cancer Screening Coordination Centers (CRCDC) responsible for following up with individuals who have tested positive. To optimize follow-up with colonoscopy, earlier contact and information about colonoscopy appear to be necessary. The contribution of the general practitioner identified on the test could be an additional lever. The SUIVICOLO study aims to evaluate the effectiveness on the rate of colonoscopies performed at 6 months of two strategies for optimizing the follow-up of positive results in comparison with control group C (current procedures of the CRCDC Centre Val de Loire without early letter). The two strategies evaluated will be: * Group B1: Sending an early letter signed by the CRCDC accompanied by information leaflet about colonoscopy * Group B2: Sending an early letter co-signed by the CRCDC and the general practitioner (identified or provided by the patient on the test identification form) accompanied by information leaflet about colonoscopy. These strategies will be compared to the current follow-up strategy in a three arm randomized controlled arm.

Interventions

OTHERUsual care follow-up by CRCDC

1. 6 months after positive test result: 1st reminder letter from the CRCDC if it has no information about a colonoscopy being performed 2. 12 months after positive test result: 2nd reminder letter from the CRCDC if it has no information about a colonoscopy being performed 3. 18 months after positive test result: 3rd reminder letter from the CRCDC if it has no information about a colonoscopy being performed

OTHERInformation leaflet about colonoscopy follow-up

An information leaflet about colonoscopy follow-up will be sent in an early letter 7 days after positive test result, and though QR-codes in subsequent reminders.

OTHEREndorsement of CRCDC letters from the GP

Explicit mention of their general practitioner in letters and reminders sent by the CRCDC to individuals who have tested positive for colorectal cancer, including the information leaflet about colonoscopy or a link to this document (QR code).

Sponsors

University Hospital, Caen
Lead SponsorOTHER
Centre Regional de Coordination des Depistages des Cancer - Pays de la Loire
CollaboratorOTHER
INSERM U1086 ANTICIPE - Université Caen Normandie
CollaboratorUNKNOWN
URPS Centre Val de Loire
CollaboratorUNKNOWN

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
NONE

Intervention model description

This is a regional study controlled randomised into 3 parallel groups, comparing 2 interventions 'B1' and "B2" versus a control 'C' (Figure 2), stratified according to whether or not a general practitioner accepted to be associated to letters. Randomisation will be stratified according to whether the beneficiary indicated the name of a general practitioner on the document accompanying their screening test and, where applicable, whether the general practitioner agreed to be associated to the letter provided for in the study. Allocation would be 1:2:2 for control, intervention B1 and intervention B2 groups in case an agreeing GP is identified for the subject, and 1:1 for control and intervention B1 in the other case.

Eligibility

Sex/Gender
ALL
Age
50 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Aged between 50 and 75 at the time of the positive colorectal cancer screening test * Residing in one of the departments of the Centre Val de Loire region * Date on which the positive CRC screening test result was sent to the beneficiary recorded * Colorectal cancer screening test results sent to the beneficiary within 30 days of the test being read * Affiliated with a health insurance fund

Exclusion criteria

* Subjects who have notified their refusal to allow their data to be used for research purposes will be excluded from the analyses.

Design outcomes

Primary

MeasureTime frame
Colonoscopy rate at 6 months after a positive test6 months

Secondary

MeasureTime frame
Percentage of general practitioners who agreed to participate in the projectAt baseline
Colonoscopy rates at 12 months after a positive test12 months
Colonoscopy rates at 18 months after a positive test18 months
Colonoscopy rates at 24 months after a positive test24 months
Number of reminders in each group by type of reminder24 months
Number of people with contraindications to colonoscopy24 months
Number of people with a CT colonography24 months
Time to perform colonoscopy24 months
Colorectal cancer at colonoscopy24 months
Advanced neoplasia at colonoscopy24 months
Number of people who refused colonoscopy24 months
Number of lost to follow-up24 months

Countries

France

Contacts

CONTACTLydia GUITTET, MD,PhD
lydia.guittet@unicaen.fr231065781
CONTACTArnaud ALVES, MD,PhD
alves-a@chu-caen.fr231065781
STUDY_DIRECTORLydia GUITTET, MD,PhD

Caen Normandy University - INSERM U1086 ANTICIPE - Caen University Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 19, 2026