What is the effectiveness of the DrinksRation smartphone application on modifying alcohol use behaviour in Service personnel at risk of alcohol-related harm?

ISRCTN ISRCTN14977034
DOI https://doi.org/10.1186/ISRCTN14977034
ClinicalTrials.gov (NCT) Nil known
Clinical Trials Information System (CTIS) Nil known
Protocol serial number 2154MODREC22
Sponsor Defence Medical Services
Funder Ministry of Defence
Submission date
24/10/2022
Registration date
06/12/2022
Last edited
16/10/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
This is a study looking at drinking behaviours, health and wellbeing in serving military personnel. We are looking at what effect various different interventions have on changing alcohol use behaviour in military personnel in order to better support military personnel who are at increased risk of alcohol related harm. For some people this will involve downloading a smartphone application. All personnel participating will have access to the smartphone application on completion of their data gathering phase.

Who can participate?
All members of the UK Armed Forces are eligible to take part if they are seen to be at risk of alcohol related harm on a scoring measure called AUDIT-C.

What does the study involve?
Participants will be asked to complete various surveys about their alcohol consumption, drinking behaviour and health over a 3 month period. The surveys will be sent either by email or through a smartphone application. All participants will be given access to the app, but at different points in time. There will be a short follow up survey sent out 6 months from now.

What are the possible benefits and risks of participating?
The potential benefits of the study are that participants may become more aware of their drinking behaviours and alcohol use and they will also be helping the wider military community by helping understand what effects drinking behaviours and the impact drinking has.

Potential disadvantages of taking part are considered to be unlikely. If it is detected that participants may be drinking at a harmful level, the independent medical officer may get in touch to provide guidance and support. Some of the survey topics may be emotionally difficult and these surveys are optional for completion. Each will come with a trigger warning and signposting to support services if required. There is a small risk that the technologies used in this study could be hacked, in the same way as with any smartphone or app. Encryption and data de-identification processes have been built in to minimise any risk to participants in the event of hacking.

Where is the study run from?
King's Centre for Military Health Research based at King's College London (UK)

When is the study starting and how long is it expected to run for?
March 2021 to April 2023

Who is funding the study?
Defence Medical Services (Ministry of Defence) (UK)

Who is the main contact?
Dr Kate King, katherine.king415@mod.gov.uk

Contact information

Dr Kate King
Principal investigator

King's Centre for Military Health Research
Weston Education Centre
10 Cutcombe Road
London
SE5 9RJ
United Kingdom

ORCiD logoORCID ID 0000-0002-1016-5357
Phone +44 300 160 6665
Email katherine.king415@mod.gov.uk
Dr Kate King
Public

King's Centre for Military Health Research
Weston Education Centre
10 Cutcombe Road
London
SE5 9RJ
United Kingdom

Phone +44 300 160 6665
Email katherine.king415@mod.gov.uk
Dr Kate King
Scientific

King's Centre for Military Health Research
Weston Education Centre
10 Cutcombe Road
London
SE5 9RJ
United Kingdom

Phone +44 300 160 6665
Email katherine.king415@mod.gov.uk

Study information

Primary study designInterventional
Study designTwo-arm randomized controlled trial
Secondary study designRandomised controlled trial
Participant information sheet 42646 PIS v2.0 20Sep2022.pdf
Scientific titleMilitary DrinksRation study
Study objectivesThat use of the DrinksRation app will reduce alcohol consumption in a population of at risk military personnel
Ethics approval(s)Approved 20/09/2022, Ministry of Defence Research Ethics Committee (Defence Science & Technology, DSTL Portsdown West, Fareham, PO17 6AD, UK; +44 300 153 5372; DST-MODRECTeam@mod.gov.uk), ref: 2154/MODREC/22
Health condition(s) or problem(s) studiedAlcohol behaviour change in military personnel identified as being at risk of alcohol related harm.
InterventionThis study is a two-arm randomised controlled trial comparing the Drinks:Ration smartphone application with usual care.

Participants will be recruited through periodic dental inspections, Service specific communications and social media, and through poster advertisements for the trial in military establishments. Participants will be recruited if they are current serving UK military and willing to be sent surveys to study their drinking behaviours, health and wellbeing. Initial screening with AUDIT-C will define eligibility for the trial arms. Participants with an AUDIT-C score of ≥5 will be eligible for the Drinks:Ration RCT. Those scoring ≤4 on AUDIT-C will not be eligible for the RCT but will still be able to partake in the surveys (see data gathering group below).

Randomisation will occur automatically using the Research Electronic Data Capture (REDCap) research management programme31 after participants have read the participant information leaflet, consented to inclusion and completed basic demographics. Two participant blocks in a 1:1 ratio will be used to ensure equal gender distribution between the control and intervention arms. The REDCap randomisation module will be programmed, by the RCI / University of Birmingham statistician, independently of the research team to maintain blinding to participant treatment allocation.

Participants will be blinded to the intervention as they will be told that the research involves them completing various surveys about drinking behaviours, health and wellbeing. The intervention arm will be emailed copies of the relevant trial information leaflets and a link to download the Drinks:Ration app. They will be asked to use the app for a minimum of 28 days. The control arm will be emailed copies of the relevant trial information leaflets and informed that they will be emailed periodically with various surveys looking at alcohol use and health. There will be no contact between researchers and participants at any stage of the trial.
Intervention typeBehavioural
Primary outcome measure(s)

Change in alcohol units consumed per week between baseline and day 84 as measured by the timeline follow back method.

Key secondary outcome measure(s)

1. Change in alcohol units consumed per week between baseline and day 168 as measured by the timeline follow back method.
2. Change in AUDIT score between baseline and day 84.
3.1. Change in quality of life assessment between baseline and day 84 as measured by World Health Organisation Quality of Life-BREF survey.
3.2. Change in quality of life assessment between baseline and day 168 as measured by World Health Organisation Quality of Life-BREF survey.
4. Change in drinking motivations between baseline and day 84 as measured by the Drinking Motivations Questionnaire (Revised).
5.1. Change in mental health screening parameters (depression, anxiety, PTSD) between baseline and day 84.
5.2. Change in mental health screening parameters (depression, anxiety, PTSD) between baseline and day 168.
6. Assessment of correlation between alcohol intake and loneliness (De Jong Gierveld), recent life events (RLE-Q), gambling behaviours (GMQ-9), domestic & sexual assault (National Crime Survey for England & Wales).

Completion date30/04/2023

Eligibility

Participant type(s)Other
Age groupAdult
Lower age limit16 Years
SexAll
Target sample size at registration728
Key inclusion criteria1. Age 16 years - no upper limit (upper age limited by being in active military service)
2. Serving UK Military
3. Scores 5 or more on AUDIT-C screening questionnaire
Key exclusion criteriaScores 4 or less on AUDIT-C screening questionnaire
Date of first enrolment14/01/2023
Date of final enrolment28/02/2023

Locations

Countries of recruitment

  • United Kingdom
  • England

Study participating centre

Defence Medical Services
Defence Primary Healthcare
Coltman House
Defence Medical Services Whittington
Lichfield
WS149PY
United Kingdom

Results and Publications

Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request, Published as a supplement to the results publication, Data sharing statement to be made available at a later date
IPD sharing planThe data sharing plans for this study are currently unknown and will be shared at a later date. It is anticipated that the raw data will be made available as a supplement to the subsequent results publication.

Results will also be available from the author (katherine.king415@mod.gov.uk) on a case by case basis providing that there are no breaches of the ethical approval and appropriate data storage can be guaranteed.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article 13/10/2023 16/10/2023 Yes No
Participant information sheet version 2.0 20/09/2022 24/10/2022 No Yes
Participant information sheet App information
version 2.0
20/09/2022 24/10/2022 No Yes
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes
Protocol file version 2.4 20/09/2022 24/10/2022 No No
Study website Study website 11/11/2025 11/11/2025 No Yes

Additional files

42646 Protocol_V2.4 20Sep2022.pdf
Protocol file
42646 PIS v2.0 20Sep2022.pdf
Participant information sheet
42646 PIS AdditionalApp v2.0 20Sep2022.pdf
App information

Editorial Notes

16/10/2023: Publication reference added.
24/10/2022: Trial's existence confirmed by Ministry of Defence REC.