Post-stroke smartphone screening for atrial fibrillation

ISRCTN ISRCTN10238762
DOI https://doi.org/10.1186/ISRCTN10238762
IRAS number 299122
Secondary identifying numbers IRAS 299122
Submission date
18/06/2021
Registration date
31/08/2021
Last edited
11/10/2022
Recruitment status
No longer recruiting
Overall study status
Completed
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
Atrial fibrillation (AF) is the most common heart rhythm disturbance. Individuals with atrial fibrillation have an increased risk of developing strokes. Individuals with atrial fibrillation related strokes could still have their atrial fibrillation undiagnosed and be at risk of further strokes. Our smartphone application could help to identify atrial fibrillation early and therefore help them to get treatment early to prevent future strokes.
Aims:
1. To evaluate the use of our smartphone application, Fibricheck in atrial fibrillation screening of post stroke patients.
2. To evaluate the participant experience and satisfaction of using the smartphone application, Fibricheck.

Who can participate?
Participants who have had a stroke in the last 6 months can participate if they do not have a diagnosis of atrial fibrillation. They must have access to a smartphone and cannot have a pacemaker already.

What does the study involve?
The study involves providing the above participants with a smartphone application called Fibricheck and a 3-month monitoring period prescription for the application. The participants will need to take photoplethysmography recordings with their smartphone twice daily for 3 months. The recordings will be reviewed for the detection of atrial fibrillation. They will also receive electronic questionnaires to fill 1 month and 3 months from the start of using the application. This questionnaire will assess application usability.

What are the possible benefits and risks of participating?
The possible benefits of participating are earlier identification of atrial fibrillation and earlier treatment for atrial fibrillation and therefore possible prevention of further AF related strokes or conditions. However, it is also possible there will be no direct benefit to the research participant. There are no foreseeable risks of participating in this study.

Where is the study run from?
West Middlesex University Hospital (UK)

When is the study starting and how long is it expected to run for?
March 2021 to December 2022

Who is funding the study?
Chelsea and Westminster plus charity (UK)

Who is the main contact?
Dr Pavidra Sivanandarajah (Pavidra.sivanandarajah1@nhs.net)

Contact information

Dr Pavidra Sivanandarajah
Scientific

West Middlesex University Hospital
Twickenham Road
Isleworth
London
TW7 6AF
United Kingdom

Phone +44 (0)2083215336
Email pavidra.sivanandarajah1@nhs.net

Study information

Study designProspective observational cohort study
Primary study designObservational
Secondary study designCohort study
Study setting(s)Hospital
Study typeScreening
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet.
Scientific titleSmartphone atrial fibrillation testing post stroke
Study acronymSMARTS project
Study objectivesThe smartphone photoplethysmography application Fibricheck can increase atrial fibrillation detection rates in the post stroke population.
Ethics approval(s)Approval 04/08/2021, London-Hampstead REC (Level 3, Block B, Whitefriars, Lewins Mead, Bristol, BS1 2NT, UK; +44 (0)2071048340; hampstead.rec@hra.nhs.uk), ref: 21/PR/0899
Health condition(s) or problem(s) studiedAtrial fibrillation
InterventionParticipants with a history of previous stroke in the last 6 months will be recruited. They must not already have a diagnosis of atrial fibrillation. They will receive a smartphone application called Fibricheck with a 3-month monitoring period prescription for the App. They will perform photoplethysmography recordings with their smartphone twice daily for 3 months. They will also receive electronic questionnaires to fill 1 month and 3 months from start of using the application. This questionnaire will assess application usability. The total follow up is 3 - 6 months.
Intervention typeDevice
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)
Primary outcome measurePhotophlethysmography detection of atrial fibrillation twice daily over 3 months
Secondary outcome measuresAssess the application usability using questionnaires
Overall study start date01/03/2021
Completion date30/12/2022

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants70
Total final enrolment22
Key inclusion criteria1. Aged 18 years old or above
2. Had a cryptogenic stroke within the last 6 months
3. Able to provide verbal or signed written informed consent
4. Access to smartphone
Key exclusion criteria1. Have already a diagnosis of atrial fibrillation prior to study enrolment
2. Unable to provide verbal or signed written informed consent
3. Below the age of 18 years old
4. Presence of cardiac electronic implantable device
Date of first enrolment01/09/2021
Date of final enrolment16/09/2022

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

West Middlesex University Hospital
Chelsea and Westminster NHS Foundation Trust
Twickenham Road
Isleworth
London
TW7 6AF
United Kingdom

Sponsor information

Chelsea and Westminster Hospital NHS Foundation Trust
Hospital/treatment centre

Research and Development Office
Unit G3, Harbour Yard
Chelsea Harbour
London
TW7 6AF
England
United Kingdom

Phone +44 (0)2033166887
Email damon.foster2@nhs.net
Website http://www.chelwest.nhs.uk/
ROR logo "ROR" https://ror.org/02gd18467

Funders

Funder type

Charity

Chelsea and Westminster Health Charity
Private sector organisation / Other non-profit organizations
Location
United Kingdom

Results and Publications

Intention to publish date31/07/2023
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPlanned publicarion in a high-impact peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available due to confidentiality.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file version 1 06/04/2021 05/08/2021 No No
HRA research summary 28/06/2023 No No

Additional files

40054 Protocol v1 06Apr2021.docx

Editorial Notes

11/10/2022: The following changes were made to the trial record:
1. The overall end date was changed from 30/09/2022 to 30/12/2022.
2. The recruitment end date was changed from 01/09/2022 to 16/09/2022.
3. The plain English summary was updated to reflect these changes.
4. The total final enrolment was added.
05/08/2021: Uploaded protocol (not peer-reviewed) as an additional file.
05/08/2021: Trial's existence confirmed by London-Hampstead REC.