Trial Review

The ANZCTR website will be unavailable from 1pm until 3pm (AEDT) on Wednesday the 30th of October for website maintenance. Please be sure to log out of the system in order to avoid any loss of data.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial registered on ANZCTR


Registration number
ACTRN12616000850471
Ethics application status
Approved
Date submitted
14/06/2016
Date registered
29/06/2016
Date last updated
4/03/2019
Date data sharing statement initially provided
4/03/2019
Date results provided
4/03/2019
Type of registration
Prospectively registered

Titles & IDs
Public title
Atrial fibrillation screening with smartphone ECG: implementation in a primary care setting
Scientific title
Identifying atrial fibrillation (AF) in patients aged 65 years and over by opportunistic screening during the annual influenza vaccination and chronic care assessments using a smartphone electrocardiogram
Secondary ID [1] 289262 0
Nil
Universal Trial Number (UTN)
Trial acronym
AF SMART
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Atrial Fibrillation 298841 0
Condition category
Condition code
Cardiovascular 298903 298903 0 0
Other cardiovascular diseases
Public Health 298904 298904 0 0
Health service research

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Ten general practices will participate in the intervention-based study. Nurses at these practices will attend a one hour training session with a researcher. The session will feature a brief presentation on atrial fibrillation (AF), study protocol, and the use of an approved handheld iECG device (Kardia Mobile, ARTG Identifier 234417) and two accompanying mobile applications (Kardia and AliveCare).

The Kardia device is a portable iECG monitor that attaches to smartphones. It enables a single lead iECG to be taken using the Kardia application on the smartphone after a patient places two fingers on the electrodes. Practice nurses will use the ECG device to screen for AF during the period of observation of the patient after the administration of the annual flu shot or during chronic care assessments in general practice. Chronic care assessments in general practice is usually over 30 minutes which allows more time for AF screening. They include annual Diabetes Cycle of Care and health assessment for people aged 75 years and older which are funded under the current Medicare Scheme. During screening, the patient will be asked to hold the smartphone ECG for a minimum of thirty seconds to record their heart rhythm. The Kardia application immediately analyses the ECG rhythm for the presence of AF using a validated algorithm, and provides an immediate provisional diagnosis on the smartphone.

The ECG recordings and provisional diagnoses are directly imported into the general practice’s local server. Staff can download them as PDFs to attach to patient files in the clinical management system. These results are also saved simultaneously through Wi-Fi connection to the AliveCor and AliveCare websites for secure online viewing. Secure access is granted to the researchers and practice staff directly involved in patient care. Data presented to the researchers are all de-identified.

For this study the practice nurses will facilitate a general practitioner review for all patients with a provisional diagnosis of AF, if they have no previous known history of this condition. Review of known AF patients’ current management plan is also recommended particularly if they are not being treated by anti-coagulants. The general practitioner will determine subsequent management strategy for both new and known AF patients using an electronic decision-support system (EDS) called HealthTracker-CVD. This system is developed by the George Institute in collaboration with Sydney University. It sits within the practice software (Medical Director or Best Practice) to provide healthcare staff with evidence-based guidelines for optimal therapeutic management of AF.

The screening intervention will commence in late 2016 and run for the entire 2017 flu vaccination as well as chronic care assessments within that period. Following completion of the intervention, semi-structured interviews will be conducted with the participating nurses, practice managers, and a selection of general practitioners from each practice to identify barriers and enablers of workflow as well as the usefulness of EDS
Intervention code [1] 294807 0
Early detection / Screening
Comparator / control treatment
Nil
Control group
Uncontrolled

Outcomes
Primary outcome [1] 298375 0
Implementation success through process measures including proportion of eligible patients screened, fidelity to the protocol, and time taken to complete the intervention. Proportion of eligible patients screened will be calculated based on the number of patients screened for AF in proportion to the total number of patients eligible for annual flu shot and chronic care assessments in each participating GP clinic. Fidelity to protocol and time taken to complete the intervention will be assessed using semi-structured interviews with practice nurses, practice managers and selected general practitioners from participating clinics.
Timepoint [1] 298375 0
Completion of the screening intervention.
Secondary outcome [1] 323970 0
Cost effectiveness analysis (i.e. incremental cost-effectiveness ratio of screening per quality adjusted life year gained, and per stroke avoided– using an adaptation of the basic economic model for AF screening developed and utilised in the SEARCH-AF study)

SEARCH-AF study:
Lowres, N., Neubeck, L., Salkeld, G., Krass, I., McLachlan, A. J., Redfern, J., ... & Wallenhorst, C. (2014). Feasibility and cost-effectiveness of stroke prevention through community screening for atrial fibrillation using iPhone ECG in pharmacies. The SEARCH-AF study. Thromb Haemost, 111(6), 1167-76.
Timepoint [1] 323970 0
Completion of the screening intervention.
Secondary outcome [2] 323971 0
The proportion of people screened identified with actionable AF. This will be assessed by reviewing Kardia iECG results. The percentage of people identified with actionable AF will be calculated based on their number in proportion to the total number of people screened.
Timepoint [2] 323971 0
Completion of the screening intervention.
Secondary outcome [3] 323972 0
To identify the competing demands, barriers, enablers and assess the level of acceptability according to staff involved in the intervention. AF screening during flu vaccination, chronic care assessment, and random GP referral will be compared to find out the most effective mode of delivery. This will be assessed as part of the process evaluation.

This composite outcome will be assessed using semi-structured interviews with practice nurses, practice managers, and selected general practitioners from each participating clinic.
Timepoint [3] 323972 0
Completion of the screening intervention.

Eligibility
Key inclusion criteria
Patients aged 65 years and over who are attending the general practice for flu vaccination and/or chronic care assessments.
Minimum age
65 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
Insufficient cognitive capacity to understand the consent process.

Study design
Purpose of the study
Diagnosis
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Allocation is not concealed.
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Not applicable
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
Phase
Not Applicable
Type of endpoint/s
Efficacy
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Date of first participant enrolment
Anticipated
1/08/2016
Actual
15/11/2016
Date of last participant enrolment
Anticipated
30/09/2018
Actual
31/07/2018
Date of last data collection
Anticipated
Actual
31/08/2018
Sample size
Target
4000
Accrual to date
Final
1806
Recruitment in Australia
Recruitment state(s)
NSW

Funding & Sponsors
Funding source category [1] 293641 0
Charities/Societies/Foundations
Name [1] 293641 0
Heart Foundation Australia
Country [1] 293641 0
Australia
Primary sponsor type
University
Name
University of Sydney
Address
City Road, Darlington NSW 2008
Country
Australia
Secondary sponsor category [1] 292475 0
None
Name [1] 292475 0
Not applicable
Address [1] 292475 0
Not applicable
Country [1] 292475 0
Other collaborator category [1] 279000 0
Other
Name [1] 279000 0
The George Institute for Global Health
Address [1] 279000 0
Level 10, King George V Building, Royal Prince Alfred Hospital, Missenden Rd
Camperdown NSW 2050
Country [1] 279000 0
Australia

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 295077 0
University of Sydney Human Research Ethics committee
Ethics committee address [1] 295077 0
Ethics committee country [1] 295077 0
Australia
Date submitted for ethics approval [1] 295077 0
Approval date [1] 295077 0
16/12/2014
Ethics approval number [1] 295077 0

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 66034 0
Dr Nicole Lowres
Address 66034 0
Level 2, Building D17 Charles Perkins Centre
The University of Sydney
NSW
2006
Country 66034 0
Australia
Phone 66034 0
+61 2 8627 5940
Fax 66034 0
Email 66034 0
[email protected]
Contact person for public queries
Name 66035 0
Jessica Orchard
Address 66035 0
Level 2, Building D17 Charles Perkins Centre
The University of Sydney
NSW
2006
Country 66035 0
Australia
Phone 66035 0
+61 2 8627 1664
Fax 66035 0
Email 66035 0
[email protected]
Contact person for scientific queries
Name 66036 0
Ben Freedman
Address 66036 0
Level 3, Building D17 Charles Perkins Centre
The University of Sydney
NSW
2006
Country 66036 0
Australia
Phone 66036 0
+61 411 591 633
Fax 66036 0
Email 66036 0
[email protected]

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
No/undecided IPD sharing reason/comment
Not permitted by our ethics approval


What supporting documents are/will be available?

No Supporting Document Provided



Results publications and other study-related documents

Documents added manually
No documents have been uploaded by study researchers.

Documents added automatically
SourceTitleYear of PublicationDOI
EmbaseScreening for atrial fibrillation.2017https://dx.doi.org/10.1161/CIRCULATIONAHA.116.026693
EmbaseeHealth tools to provide structured assistance for atrial fibrillation screening, management, and guideline-recommended therapy in metropolitan general practice: The AF-SMART study.2019https://dx.doi.org/10.1161/JAHA.118.010959
EmbaseUptake of a primary care atrial fibrillation screening program (AF-SMART): a realist evaluation of implementation in metropolitan and rural general practice.2019https://dx.doi.org/10.1186/s12875-019-1058-9
N.B. These documents automatically identified may not have been verified by the study sponsor.