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Evaluation of an intervention co-designed with key stakeholders to improve colorectal cancer screening participation

The CRITICALS project: CReation of an Innovative inTervention for Improving ColorectAL cancer Screening

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN28168392
Enrollment
100
Registered
2022-11-04
Start date
2022-10-20
Completion date
Unknown
Last updated
2024-01-08

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

Conditions

Participation in colorectal cancer screening in general population Cancer

Interventions

Two workshops were organized with key stakeholders to develop an intervention to encourage people to request the colorectal cancer screening kit when they are invited to take part by mail. Based on wo
2. A new leaflet (to be sent with the invitation), shorter than the current leaflet and highlighting key information. This new leaflet also includes narratives from people having experienced screening

Sponsors

National University of Ireland, Galway
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: The inclusion criteria were developed in line with the BowelScreen inclusion criteria: 1. Adults aged 60 years old 2. Newly invited to participate in screening

Exclusion criteria

Exclusion criteria: 1. People who are already involved in the screening programme (previously invited/ participated in colorectal screening) 2. People who have been diagnosed with colorectal cancer 3. People who are not competent English speakers and/or do not comprehend spoken or written English

Design outcomes

Primary

MeasureTime frame
Screening behaviour is measured by comparing the percentage of people who participated in screening in the control group vs the intervention group. This data will be provided by the National Screening Service 3 months after the intervention.

Secondary

MeasureTime frame
All outcomes are measured at baseline: 1. Acceptability of the invitation letter to participate in screening and information leaflet, measured by five items with a scale from 1 to 5 2. Capability, opportunity and motivation are measured with a validated questionnaire - six items, scale from 1 to 10 (COM-B questionnaire) 3. Already participated in bowel cancer screening assessed using one item, Yes/No 4. Already called the Freephone to request the screening kit, assessed using one item, Yes/No 5. Already received the screening kit, assessed using one item, Yes/No 6. Intention to participate in screening, assessed using one item, scale from 1 "Definitely will" to 5 "Definitely will not" 7. Knowledge regarding bowel cancer and screening assessed using four questions, measure of the number of correct and incorrect answers 8. The acceptability of the materials and the views and perceptions of the BowelScreen programme, assessed using an optional interview after completing the questionnaire

Countries

Ireland

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026