Acceptability testing of a Decision Support Tool for patients and relatives that are deciding about being screened for Thoracic Aortic Disease

ISRCTN ISRCTN15536599
DOI https://doi.org/10.1186/ISRCTN15536599
IRAS number 351644
Secondary identifying numbers CPMS 68759; Grant Code: NIHR206798
Submission date
01/09/2025
Registration date
23/09/2025
Last edited
23/09/2025
Recruitment status
Not yet recruiting
Overall study status
Ongoing
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Thoracic aortic disease (TAD) is a silent disease that doesn't show symptoms until it becomes really dangerous. The disease is characterised by a swelling or bulge in the aorta, which is the body’s largest artery. This project is looking to prevent the most dangerous thing that can follow, which is a tear in the aorta called an aortic dissection. Preventing aortic disease is a national research priority for the NHS.
TAD can be caused by mutations in DNA and may run in families. If the relatives of people with TAD are checked early, using scans and genetic tests, we might be able to find TAD sooner and save lives. However, there are problems getting in the way of this, like doctors and people not knowing enough about TAD, some groups of people not getting access to the right care, plus worries about the cost and how the tests might affect someone's life.
We think the best way to fix these problems, is to create an interactive tool that provides information to help families make choices about being screened for TAD, based on what's important to them. We believe this will increase the number of people that get screened for TAD and find the disease early. This interactive tool is called a Decision Support Tool (DST).
Work Package (WP) 1 of the DECIDE-TAD Programme is the co-development of the DST and the Implementation Toolkit which will be used to train doctors and other healthcare professionals on how to use the DST. This part of WP1 (WP1.4) is the acceptability testing of the DST and will involve patients with TAD, their close relatives and healthcare professionals, from two UK NHS hospitals taking part in interviews, or completing a questionnaire to give feedback on the DST.

Who can participate?
People aged 16 years and above who are either:
1. A patient with Non-Syndromic TAD diagnoses in the last 24 months
2. A first- or second-degree relative of a patient with TAD, or
3. A healthcare professional involved in shared decision-making consultations regarding screening for TAD

What does the study involve?
The study involves participants looking at the Decision Support Tool and giving their feedback through an interview with a qualitative researcher or by completing a questionnaire.

What are the possible benefits and risks of participating?
There are no direct benefits to taking part, but people who take part will be helping to develop a decision aid for patients and their family members for use in a larger trial. This will help us to understand whether the decision aid is beneficial for patients and their family members to use in the NHS. People who take part might find the experience useful in terms of talking about their experiences in relation to the content of the decision aid. The possible disadvantages and risks of taking part are that talking about their experience with TAD may be upsetting for people.

Where is the study run from?
Leicester Clinical Trials Unit (UK)

When is the study starting and how long is it expected to run for?
October 2024 to December 2025

Who is funding the study?
The National Institute for Health and Care Research (NIHR) Programme Grants for Applied Research (PGfAR) (UK)

Who is the main contact?
Jane Hughes, jane.hughes2@sheffield.ac.uk

Contact information

Ms Jane Hughes

University of Sheffield
Regent Court
Sheffield
S4 1DL
United Kingdom

Phone +44 (0)7756959752
Email jane.hughes2@sheffield.ac.uk

Study information

Study designObservational; Design type: Qualitative
Primary study designObservational
Secondary study designQualitative
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet
Scientific titleMixed methods co-design and evaluation of a decision support tool to enable shared decision making for people who are considering cascade screening for thoracic aortic disease: the DECIDE-TAD Programme. Acceptability Testing Work Package 1.4
Study acronymDECIDE-TAD
Study objectivesPrimary Objective:
To evaluate the acceptability of a decision support tool (DST) to support shared decision making for patients with thoracic aortic disease (TAD) and their first- and second-degree relatives.

Secondary Objective:
To evaluate the feasibility of implementing a DST in clinical services and explore what training would be required to support delivery.
Ethics approval(s)Approved 04/08/2025, London – Stanmore Research Ethics Committee (2nd Floor, 2 Redman Place, Stratford, London, E20 1JQ, UK; +44 (0)2071048068, +44 (0)2071048208; stanmore.rec@hra.nhs.uk), ref: 25/PR/0917
Health condition(s) or problem(s) studiedThoracic aortic disease
InterventionFor this component of the NIHR programme – Acceptability Testing – we will conduct qualitative interviews with TAD patients and their first and second-degree relatives as well as Health Care Professionals (Aortic Specialist Nurses, Inherited Cardiac Conditions (ICC) Specialist Nurses or other clinical staff involved in shared decision making).

First, we will conduct between 15-36 qualitative interviews with patients and relatives over three rounds of interviews. After each round of interviews, researchers will analyse the interviews, refine the DST based on the participant feedback, and then conduct further interviews with the refined DST. After three rounds of interviews with patients and relatives and refinement of the DST, a questionnaire will be developed based on interview findings to ascertain how acceptable and useable the DST would be to participants.

Further TAD patients and their relatives (n = 20-25) will be recruited to complete the questionnaire.

Following patient and relative interviews and the survey, and analysis of the results, researchers will conduct qualitative interviews with health care professionals (n = 8-10) to find out how useable and acceptable the DST is for healthcare professionals to support shared decision making and what training would be required to support delivery.
Intervention typeOther
Primary outcome measureThe acceptability of DST, assessed through an interview or a questionnaire with patients with TAD and their first- and second-degree relatives at a single timepoint for each participant
Secondary outcome measuresThe feasibility of implementing a DST in clinical services and what training would be required to support delivery, assessed through interviews with healthcare professionals at a single timepoint for each participant
Overall study start date01/10/2024
Completion date31/12/2025

Eligibility

Participant type(s)Healthy volunteer, Patient, Health professional
Age groupAdult
Lower age limit16 Years
SexBoth
Target number of participantsPlanned Sample Size: 71; UK Sample Size: 71
Key inclusion criteria1. People with a diagnosis of NS-TAD where this is defined as:
1.1. People with Acute Type A dissection, treated or untreated
1.2. People who have undergone non-emergency treatment (surgical or endovascular) for NS-TAD. This means anyone with NS-TAD who has had treatment at a UK cardiac surgery centre
Or first- or second-degree relative of a patient with TAD
Or healthcare professional involved in shared decision making consultations regarding screening for TAD
2. Aged 16 years and above
3. Diagnosed in the last 24 months from start date of this study when recruiting from Trusts (relevant for the patient with TAD)
4. Ability to understand the languages in which the information is available (Acceptability questionnaire study only)
5. Willingness to provide informed consent
Key exclusion criteria1. Previous diagnosis of syndromic TAD (relevant for the patient with TAD)
2. Inability to understand English written and spoken language (Acceptability questionnaire study only)
Date of first enrolment01/12/2025
Date of final enrolment31/12/2025

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centres

Leicester Royal Infirmary
Infirmary Square
Leicester
LE1 5WW
United Kingdom
Queen Elizabeth Hospital
Mindelsohn Way
Edgbaston
Birmingham
B15 2GW
United Kingdom

Sponsor information

University of Leicester
University/education

University Road
Leicester
LE1 7RH
England
United Kingdom

Email not@provided.com
Website https://le.ac.uk
ROR logo "ROR" https://ror.org/04h699437

Funders

Funder type

Government

National Institute for Health and Care Research
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 summaryData sharing statement to be made available at a later date
Publication and dissemination planNot provided at time of registration
IPD sharing planThe datasets generated during and/or analysed during the current study will be available upon request from Jane Hughes (jane.hughes2@sheffield.ac.uk). Participants will consent to information collected about them in this study being shared with other researchers, organisations, and collaborators for the purpose of future ethically approved research.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file version 1.1 30/07/2025 04/09/2025 No No

Additional files

47921_PROTOCOL_V1.1_30Jul25.pdf

Editorial Notes

01/09/2025: Study's existence confirmed by the NIHR.