Reducing Acute Coronary Syndrome Patient Delay (RAPiD)

Edinburgh Napier University

Status: Unknown

Conditions: Acute Coronary Syndrome

Treatments: Behavioral: Leaflet information (control); Behavioral: Text+Visual BCT-based intervention; Behavioral: Text-only BCT intervention

Study type: Interventional

Funder types: Other

Identifiers

NCT02820103

CZH/4/1025

Details and patient eligibility

About

1. To test the effectiveness of the theory-based interventions (text+visual and text-only BCT-based interventions) against usual care in changing patients' intentions to phone ambulance immediately with symptoms of ACS ≥ 15 minutes duration.
2. To determine the most effective mode of delivery by comparing the text+visual BCT-based intervention with text-only BCT-based intervention.
3. To investigate any unintended consequences of the intervention on intentions to phone an ambulance for non-life-threatening symptoms.

Full description

Patient delay means many people do not achieve optimal benefit of time-dependent treatments for Acute Coronary Syndrome (ACS). Reducing delay would reduce mortality and morbidity but to date, interventions to change behaviour have had mixed results. Systematic inclusion of behaviour-change techniques (BCTs) or a visual mode of delivery might improve the efficacy of interventions.

Aim To evaluate the efficacy of a BCT-based intervention and to compare two possible modes of delivery (text+visual and text-only).

Design A 3-arm web-based, parallel randomised, controlled trial of a theory-based intervention.

Methods and analysis The intervention comprises 12 BCTs systematically identified following systematic review and a consensus exercise undertaken with behaviour change experts. We aim to recruit n=177 participants who have experienced ACS in the previous 6 months from a local National Health Service (NHS) Teaching Hospital. Participants will be identified by Cardiac Rehabilitation staff and invited by letter to take part in the study. Those who wish to take part will be asked to access the experiment at a secure web-address and consent re-checked. Consenting participants will be randomly allocated in equal numbers to one of three study groups: i) usual care ii) usual care plus text-only BCT-based intervention or iii) usual care plus text+visual BCT-based intervention. The outcome variable will be the change in intention to phone an ambulance immediately with symptoms of ACS ≥15 minutes duration assessed using two randomised series of 8 scenarios representing varied symptoms before and after delivery of the interventions or control condition (usual care).

Enrollment: 177 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adults, aged > 18 years
• Experience of Acute Coronary Syndrome within the previous six months

Exclusion criteria

• Anyone still hospitalised
• People who have experienced ACS within the previous two weeks.

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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177 participants in 3 patient groups

Information leaflet (control)

Active Comparator group

Description:

Participants in the control group will receive information that is currently used routinely in the NHS site to inform patients with ACS what to do if they experience symptoms after discharge. The information from two leaflets: 1. 'Using GTN', produced by the hospital and 'Angina' produced by the British Heart Foundation, published 08/04/2014 and available at https://www.bhf.org.uk/publications/heart-conditions/angina . The information explains the symptoms of angina and heart attack and advises what to do in the event of experiencing these symptoms. This information will be presented in written text format on screen.

Treatment:

Behavioral: Leaflet information (control)

Text+Visual BCT-based intervention (Intervention Group 1)

Experimental group

Description:

Participants in the visual intervention group will receive the control condition specified above PLUS a specifically developed Text+Visual BCT-based intervention, comprising the 12 BCTs identified earlier in a Systematic Review and expert consensus study. The BCTs are Problem solving; Action planning; Social support (practical); Social support (emotional); Instruction on how to perform the behaviour; Information about health consequences; Salience of health consequences; Prompts/cues; Credible source; Pro's \& Con's; Comparative imagining of future outcomes; Mental rehearsal of successful performance

Treatment:

Behavioral: Text+Visual BCT-based intervention

Behavioral: Leaflet information (control)

Text-only BCT-based intervention (Intervention Group 2)

Experimental group

Description:

Information leaflet (usual care) plus text-only BCT-based intervention (Intervention group 2) Participants in the text-only BCT-based intervention group will receive the control condition specified above plus a text-only BCT-based intervention. This was developed in the same way as the text+visual BCT-based intervention but does not include the visual elements (i.e. animation). Instead, the voiceover from the animated film is displayed in text on screen instead.

Treatment:

Behavioral: Leaflet information (control)

Behavioral: Text-only BCT intervention