Understanding engagement with an app targeting harmful drinking: Development and evaluation of the BRANCH smartphone app

ISRCTN ISRCTN70980706
DOI https://doi.org/10.1186/ISRCTN70980706
Secondary identifying numbers 1
Submission date
23/07/2018
Registration date
26/07/2018
Last edited
17/12/2018
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
Excessive alcohol consumption accounts for approximately 3 million deaths per year and is the third highest risk factor for ill-health, behind only smoking and high blood pressure. In the UK when young adults drink at hazardous or harmful levels, their consumption is the highest amongst all age groups. Young adults are reluctant to seek professional help for mental health problems when necessary. When they do seek help via primary care, harmful drinking in younger adults is under-identified by doctors. Therefore, finding ways to reduce harmful alcohol consumption in this population is a challenge. Electronic screening and brief interventions (eSBI) are typically delivered via the internet and smartphone apps, including tools such as alcohol screening, feedback on drinking and information on risks and advice for cutting down, and have shown to be effective in reducing harmful alcohol-use. However, a major issue with the eSBI app is sufficiently engaging individuals with the app, with the app not being used as frequently as necessary.
The aim of this study was to develop a smartphone app called ‘BRANCH’, which included new strategies to target harmful drinking, and to examine whether it improved use of the app, along with whether it reduced harmful drinking.

Who can participate?
18-30 year olds from the UK who drink alcohol at a harmful level and have a smartphone

What does the study involve?
The study involves comparing a comprehensive version of the app ‘BRANCH’, to a basic version. The comprehensive version includes screening and personalised feedback for alcohol use, the option to set a goal to reduce alcohol use, and information on alcohol risks and advice for cutting down, along with new strategies such as tailoring to motivations for cutting down reminders and a Twitter style newsfeed. The basic version just includes screening and personalised feedback for alcohol use, the option to set a goal to reduce alcohol use, information on alcohol risks and advice for cutting down. Participants are allocated at random to either the basic or comprehensive version of the app, and asked to use it to record their alcohol use.

What are the benefits and risks of participating?
The possible benefit to participants is that taking part could potentially reduce their harmful alcohol use and therefore reduce their risks of alcohol-related disease. There are no known risks to participants taking part in this study.

Where is the study run from?
King’s College London

When is the study starting and how long is it expected to run for?
January 2015 to December 2017

Who is funding the study?
1. Medical Research Council (MRC) (UK)
2. Collaboration for Leadership in Applied Heath Research and Care in South London (CLAHRC) (UK)

Who is the main contact?
Joanna Milward
joanna.milward@kcl.ac.uk

Study website

Contact information

Mrs Joanna Milward
Scientific

ASB
4 Windsor Walk
Denmark Hill
London
SE58BB
United Kingdom

Phone +44 (0)207 848 0437
Email joanna.milward@kcl.ac.uk

Study information

Study designInterventional single-centre randomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Internet/virtual
Study typeTreatment
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleDevelopment and evaluation of a smartphone app targeting harmful drinking in young adults: How do we promote engagement to improve clinical outcomes?
Study acronymBRANCH
Study objectives1. Null hypothesis: The addition of EPSs in an app targeting harmful drinking in young adults would not result in a significant increased use measured by number of logins compared to the same app including only core-components and basic strategies 28 days post randomisation.
2. Null hypothesis: Users of the comprehensive version of the app would not show a significant reduction in harmful drinking score as measured by the AUDIT – C score compared to users of the basic version at 6-month post randomisation.
3. Null hypothesis: Engagers in the intervention arm who logged into BRANCH more than once would not show a significant reduction in harmful drinking as measured by the AUDIT – C score compared to non-engagers in both treatment arms.
Ethics approval(s)King’s College London University Ethics Committee, 09/08/2016, RESCMR-16/17-2896
Health condition(s) or problem(s) studiedHarmful drinking
InterventionThis trial uses an electronic screening and brief intervention app targeting harmful drinking in young adults aged 18-30. Participants will be randomised into either the intervention or control group using an online automated system.
Participants in the intervention group receive a comprehensive version of the app, including screening and personalised feedback for alcohol use, the option to set a goal to reduce alcohol use, information on alcohol risks and advice for cutting down and novel engagement promoting strategies. These include a social Twitter-style newsfeed, tailoring to motivations for cutting down and goals via the newsfeed, a social teams section based on the principles of gamification, extended infographic information on advice for cutting down and in-app reminders on the newsfeed.
Participants in the control group receive a basic version of the app including screening and personalised feedback for alcohol use, the option to set a goal to reduce alcohol use, information on alcohol risks and advice for cutting down. Minimal engagement promoting strategies included. For example, all participants received an app which was multimedia, interactive, with single exposure delivery of information. The basic version included no tailoring, gamification, reminders or social features. All other features of the app remained the same, including the branding, overall look and feel and aesthetic design.
Intervention typeBehavioural
Primary outcome measureNumber of logins over the 28 day study period
Secondary outcome measuresHarmful alcohol consumption, assessed using the Alcohol Use Disorders Identification Test for Consumption (AUDIT-C) at the baseline and after 6 months
Overall study start date01/09/2015
Completion date23/06/2018

Eligibility

Participant type(s)Other
Age groupAdult
Lower age limit18 Years
Upper age limit30 Years
SexBoth
Target number of participants564
Key inclusion criteria1. Aged 18-30 years old
2. Harmful level of drinking (scored ≥ 7 on AUDIT-C)
3. Living in UK
4. Owns a smartphone
Key exclusion criteriaN/A
Date of first enrolment01/01/2017
Date of final enrolment30/12/2017

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

King's College London
ASB
4 Windsor Walk
Denmark Hill
London
SE58BB
United Kingdom

Sponsor information

King's College London
University/education

Franklin Wilkins Building
Waterloo Road
London
SE1 9NH
England
United Kingdom

Phone 020 7836 5454
Email pnm@kcl.ac.uk
Website https://www.kcl.ac.uk/index.aspx
ROR logo "ROR" https://ror.org/0220mzb33

Funders

Funder type

Not defined

Medical Research Council
Government organisation / National government
Alternative name(s)
Medical Research Council (United Kingdom), UK Medical Research Council, MRC
Location
United Kingdom
South London Collaboration for Leadership in Applied Heath Research and Care in (CLAHRC)

No information available

Results and Publications

Intention to publish date01/11/2018
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planWe intend to publish in a peer reviewed journal and disseminate the findings at academic conferences.
IPD sharing planThe data sharing plans for the current study are unknown and will be made available at a later date

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article qualitative study results 13/12/2018 Yes No

Editorial Notes

17/12/2018: Publication reference added.