Strategies to reduce the social gradient in bowel cancer screening: the ASCEND project

ISRCTN ISRCTN74121020
DOI https://doi.org/10.1186/ISRCTN74121020
Secondary identifying numbers 13127
Submission date
17/10/2012
Registration date
17/10/2012
Last edited
14/04/2016
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims
Bowel cancer is the second most common cause of cancer death in the UK. Early diagnosis improves survival and in the light of this the NHS has established the Bowel Cancer Screening Programme. This Programme offers screening using a stool testing kit to 60 - 74 year olds in England. Recent data show that only 53% of those offered screening take it up and that this varies from more than 60% in the most socially advantaged areas of the country to less than 35% in the most disadvantaged areas. The aim of this study is to reduce differences in uptake between the most and least socially advantaged groups, without compromising uptake in any of the groups, in people registered in the Bowel Cancer Screening Programme.

Who can participate?
Men and women aged between 60-74 eligible to be screened for bowel cancer.

What does the study involve?
We will examine the effectiveness, cost and cost effectiveness of four simple changes that can be easily built into the current Bowel Cancer Screening Programme delivery system. The four changes consist of two different information leaflets to be added to the invitation packs, the addition of the GP practice name to the invitation letter, and the addition of more information to the reminder letters. Participants will be randomly allocated to receive either one of the four modified invitations or the usual invitation.

What are the possible benefits and risks of participating?
There are no risks to the participants associated with these interventions.

Where is the study run from?
University College London (UK)

When is the study starting and how long is it expected to run for?
November 2012 to August 2013

Who is funding the study?
National Institute for Health Research (NIHR) (UK)

Who is the main contact?
Prof Rosalind Raine
r.raine@ucl.ac.uk

Contact information

Prof Rosalind Raine
Scientific

University College London
Department of Applied Health Research
1-19 Torrington Place
London
WC1E 7HB
United Kingdom

Phone +44 (0)207 679 1713
Email r.raine@ucl.ac.uk

Study information

Study designCluster randomised controlled trials
Primary study designInterventional
Secondary study designCluster randomised trial
Study setting(s)Other
Study typeScreening
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleStrategies to reduce the social gradient in bowel cancer screening: the ASCEND project
Study hypothesisSocioeconomic inequalities in screening uptake within the Bowel Cancer Screening Programme can be reduced by modifying the information about cancer screening sent routinely to the eligible population.
Ethics approval(s)London - Harrow Research Ethics Committee, 25/09/2012, ref: 12/LO/1396
ConditionColorectal cancer
InterventionAll of the interventions listed below will be tested against usual practice in Bowel Cancer Screening Programme.

1. Gist intervention:
This is an information leaflet which offers two levels of information about the screening programme beginning with four brief statements encapsulating the main aims of bowel cancer screening programme, followed by two pages offering additional details in simple language. This leaflet contains clear signposting to allow respondents to select the information style that suits them, including a reference to the booklet which contains more detailed information and is already part of the standard invitation pack in the Bowel Cancer Screening Programme.

2. Narrative intervention:
This is an information leaflet containing narratives and photographs of real people ('messengers') who took part in screening and with whom individuals from the lower socioeconomic strata are more likely to identify. This leaflet will be sent with the usual invitation used in the Bowel Cancer Screening Programme.

3. General Practice Endorsement intervention:
This is an invitation letter modified so that it includes the individual's GP practice name in a statement of support for the Bowel Cancer Screening Programme.

4. Enhanced Reminder intervention:
This is a modified letter containing two paragraphs to make it more memorable and inviting to the potential participants. The paragraphs are focused on conveying the information about increased risk of getting cancer with age and also drawing the recipient's attention to the fact that the letter is a reminder.
Intervention typeOther
Primary outcome measureThe proportion of people in each socioeconomic group returning an adequate faecal occult blood test (FOBt) within 18 weeks of being sent an invitation. Socioeconomic groups will be identified using Index of Multiple Deprivation (IMD) quintile scores
Secondary outcome measures1. Time taken to return FOBt by IMD quintile
2. Proportion of spoilt kits and their relationship to IMD quintile
3. Proportion of non-delivered kits by IMD quintile
4. Incremental cost per screening invitation
5. Incremental cost per screening invitation, both by IMD quintile and overall
6. All of the above outcomes analysed using other socioeconomic variables
Overall study start date05/11/2012
Overall study end date02/08/2013

Eligibility

Participant type(s)Patient
Age groupSenior
SexBoth
Target number of participantsUK Sample Size: 420000
Participant inclusion criteria1. Men and women eligible to be screened for bowel cancer in England
2. Aged between 60-74 years
Participant exclusion criteriaIn Intervention 3 (GP endorsed invitation letters) we will only be able to randomise eligible people to receive this intervention if they are registered with practices that have agreed to endorse the BCSP. We estimate that only about 30% of all GP practices in England will consent to their name being used on BCSP invitation letters so the majority of eligible people will receive the usual invitation letters.
Recruitment start date05/11/2012
Recruitment end date02/08/2013

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

University College London
London
WC1E 7HB
United Kingdom

Sponsor information

University College London (UK)
University/education

Gower Street
London
WC1E 6BT
England
United Kingdom

Website http://www.ucl.ac.uk/
ROR logo "ROR" https://ror.org/02jx3x895

Funders

Funder type

Government

National Institute for Health Research [NIHR] (UK) ref: RP-PG-0609-10106
Government organisation / National government
Alternative name(s)
National Institute for Health Research, NIHR Research, NIHRresearch, NIHR - National Institute for Health Research, NIHR (The National Institute for Health and Care Research), NIHR
Location
United Kingdom

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/02/2016 Yes No
Results article results 20/02/2016 Yes No

Editorial Notes

14/04/2016: Publication reference added.
08/03/2016: Publication reference added.