NCT05408169

Brief Summary

Bowel cancer is the second biggest cancer killer in the UK, accounting for over 16,000 deaths per year. Screening can reduce deaths from bowel cancer if the people invited participate. The challenge is that high uptake of bowel screening is hard to achieve, and remains persistently below 65%. The faecal immunochemical test (FIT) is the most widely used bowel screening test worldwide. In the UK, FIT kits are mailed to people's homes without guidance on when the kit should be returned and only brief instruction on how to use it. Some people have said that even though they intend to complete and return the kit, they often forget or put off doing it. Two approaches are proposed to addressing this issue: i) providing a suggested deadline for FIT return, because it is known from breast and cervical cancer screening that giving people an appointment time increases uptake compared to an open invitation, and ii) planning sheets, that have been found to help people act on their intentions in other health contexts. This trial aims to evaluate the impact of providing a suggested deadline and a planning sheet on the return of FIT bowel screening kits. The trial is integrated within the Scottish Bowel Screening Programme. The investigators will randomly allocate 40,000 consecutive people that are due to be sent a FIT kit to one of eight groups: (i) control group (no deadline, no planning sheet), (ii) intervention group (1-week deadline, no planning sheet), (iii) intervention group (2-week deadline, no planning sheet), (iv) intervention group (4-week deadline, no planning sheet), (v) intervention group (no deadline, with planning sheet), (vi) intervention group (1-week deadline, with planning sheet), (vii) intervention group (2-week deadline, with planning sheet), (viii) intervention group (4-week deadline, with planning sheet). It will then be examined if having a suggested deadline and a planning sheet affects how many people send back their completed FIT kit. It will also be examined if the deadline length makes a difference and whether having both a deadline and a planning sheet affects the number of people returning their kit. Finally, the cognitive and behavioural mechanisms underlying any intervention effects will be assessed and the acceptability of the interventions explored, using questionnaires and in-depth interviews.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
40,000

participants targeted

Target at P75+ for not_applicable colorectal-cancer

Timeline
Completed

Started Jun 2022

Shorter than P25 for not_applicable colorectal-cancer

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

April 29, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 7, 2022

Completed
13 days until next milestone

Study Start

First participant enrolled

June 20, 2022

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 3, 2022

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2023

Completed
Last Updated

December 11, 2023

Status Verified

December 1, 2023

Enrollment Period

4 months

First QC Date

April 29, 2022

Last Update Submit

December 8, 2023

Conditions

Keywords

Early Detection of Cancer

Outcome Measures

Primary Outcomes (1)

  • Number of screening tests returned to the central laboratory and successfully processed providing an adequate result.

    3 months

Secondary Outcomes (6)

  • Number of screening tests returned to the central laboratory

    3 months

  • Number of screening tests returned to the central laboratory within suggested deadline

    1/2/4 weeks

  • Number of screening tests returned to the central laboratory by area-level deprivation

    3 months

  • Cognitive and behavioural mechanisms

    3 months

  • Acceptability of interventions (quantitative)

    3 months

  • +1 more secondary outcomes

Study Arms (8)

Control

NO INTERVENTION

1-week deadline, no planning sheet

EXPERIMENTAL
Behavioral: Suggested deadline for return of screening test

2-week deadline, no planning sheet

EXPERIMENTAL
Behavioral: Suggested deadline for return of screening test

4-week deadline, no planning sheet

EXPERIMENTAL
Behavioral: Suggested deadline for return of screening test

No deadline, with planning sheet

EXPERIMENTAL
Behavioral: Planning sheet

1-week deadline, with planning sheet

EXPERIMENTAL
Behavioral: Suggested deadline for return of screening testBehavioral: Planning sheet

2-week deadline, with planning sheet

EXPERIMENTAL
Behavioral: Suggested deadline for return of screening testBehavioral: Planning sheet

4-week deadline, with planning sheet

EXPERIMENTAL
Behavioral: Suggested deadline for return of screening testBehavioral: Planning sheet

Interventions

A screening invitation letter modified to state, highlighted in yellow: "Please return your kit within \[X\] weeks (by \[DD.MM.YYYY\]) or as soon as possible."

1-week deadline, no planning sheet1-week deadline, with planning sheet2-week deadline, no planning sheet2-week deadline, with planning sheet4-week deadline, no planning sheet4-week deadline, with planning sheet
Planning sheetBEHAVIORAL

A planning tool presented on a separate single sheet of paper inserted into the screening invitation envelope. The colour illustrated tool prompts participants to identify concerns they have with using the bowel screening kit and to link them to a tip to help them overcome this concern.

Also known as: Volitional help sheet
1-week deadline, with planning sheet2-week deadline, with planning sheet4-week deadline, with planning sheetNo deadline, with planning sheet

Eligibility Criteria

Age50 Years - 74 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years
  • Registered with a Community Health Index number in Scotland
  • More than 2 years since last bowel screening invitation

You may not qualify if:

  • Has self-excluded from Scottish Bowel Screening Programme
  • Not sent a screening kit by the Scottish Bowel Screening Programme

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Scottish Bowel Screening Centre

Dundee, United Kingdom

Location

Related Publications (2)

  • Robb KA, Young B, Murphy MK, Duklas P, McConnachie A, Hollands GJ, McCowan C, Macdonald S, O'Carroll RE, O'Connor RC, Steele RJC. Behavioural interventions to increase uptake of FIT colorectal screening in Scotland (TEMPO): a nationwide, eight-arm, factorial, randomised controlled trial. Lancet. 2025 Mar 29;405(10484):1081-1092. doi: 10.1016/S0140-6736(24)02813-7. Epub 2025 Mar 12.

  • Robb KA, Kotzur M, Young B, McCowan C, Hollands GJ, Irvine A, Macdonald S, McConnachie A, O'Carroll RE, O'Connor RC, Steele RJC. Increasing uptake of FIT colorectal screening: protocol for the TEMPO randomised controlled trial testing a suggested deadline and a planning tool. BMJ Open. 2023 May 18;13(5):e066136. doi: 10.1136/bmjopen-2022-066136.

MeSH Terms

Conditions

Colorectal Neoplasms

Condition Hierarchy (Ancestors)

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

Study Officials

  • Katie Robb

    University of Glasgow

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Behavioural Science and Health

Study Record Dates

First Submitted

April 29, 2022

First Posted

June 7, 2022

Study Start

June 20, 2022

Primary Completion

October 3, 2022

Study Completion

June 30, 2023

Last Updated

December 11, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will share

Outcomes 1-4: Details of the dataset and work arising from it will be available from the Robertson Centre for Biostatistics Analytical Platform at the University of Glasgow. The dataset will be archived on live servers within the facility. Use of anonymised data within research is given for the specified project purpose, future use is permitted but would require permission from LPAC and the Caldicott Guardian. Outcomes 5-6: Quantitative data (SPSS files with metadata) and qualitative data (stored as MSword transcripts with metadata) will be deposited in Enlighten: Research Data, the University of Glasgow's institutional data repository. Data in the repository will be stored in accordance with funder and University data policies. Files will be given a Digital Object Identifier (DOI) and the associated metadata will be listed in the University of Glasgow Research Data Registry and the DataCite metadata store.

Time Frame
Outcomes 1-4: 5 years post completion and data then moved to off-line storage. Outcomes 5-6: 10 years from date of deposition in the first instance, with extensions applied to datasets which are subsequently accessed.
Access Criteria
Outcomes 1-4: There is no requirement for a data sharing agreement with the research team and no restrictions on data sharing. Any research group can approach and request permission to use datasets. Outcomes 5-6: Data made public at the time of publication.

Locations