A brief digital intervention targeting prevention of alcohol and other substance use among adolescents and young adults

ISRCTN ISRCTN91048246
DOI https://doi.org/10.1186/ISRCTN91048246
Secondary identifying numbers PK
Submission date
11/09/2019
Registration date
24/09/2019
Last edited
22/11/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
The teenage years and young adulthood is a period in life when people may be especially vulnerable to harmful drug and alcohol use. Young people's brains are undergoing important development processes at this time, and substance use can negatively affect mental health and social development in the short and long term. From a public health point of view, it is important to prevent or delay substance use to reduce harm to individuals and society. There is a need for cost-effective and easily distributed interventions aimed at reducing substance use in young people. This study aims to test how well an online intervention reduces drug and alcohol use in teenagers and young adults aged 15-25 years.

Who can participate?
Teenagers and young adults aged 15-25 years who have access to the internet.

What does the study involve?
The participants will be randomly allocated to one of two groups. One group will receive the the intervention aimed at reducing substance use and some general health information. The other group will receive the health information only. Before the intervention and at 3 and 6 months after the intervention, all participants will be asked about their drug and alcohol use, their experience of peer pressure, their wellbeing and their sexual behaviour.

What are the possible benefits and risks of participating?
All participants will be provided with health information that might increase their understanding of health-related issues. Those who receive the intervention aimed at reducing substance use might benefit from reduced substance use and risky behaviours. Participants will be asked to reflect on their use of alcohol and other substances and answer questions on their mental health and family relationships. This might cause some discomfort or upset. Participants are informed that their participation is voluntary and they can interrupt or stop their participation at any time, without explanation. They will be given details of websites and phone numbers to contact for support if they have any concerns about their substance use or other problems. Any issues raised by the participants during the study will be documented and managed. The research team includes experienced healthcare professionals, such as a psychiatrist and a nurse, who can refer participants to healthcare clinics if needed.

Where is the study run from?
STAD, Centre for Psychiatry Research, Karolinska Institutet/Stockholm County Council (Sweden)

When is the study starting and how long is it expected to run for?
May 2019 to October 2023

Who is funding the study?
1. National Public Health Agency of Sweden
2. Alcohol Research Council of the Swedish Alcohol Retailing Monopoly
3. Swedish Research Council

Who is the main contact?
Dr Pia Kvillemo, pia.kvillemo@ki.se

Contact information

Dr Pia Kvillemo
Scientific

Norra Stationsgatan 69
Stockholm
113 64
Sweden

ORCiD logoORCID ID 0000-0002-9706-4902
Phone +46 070 673 48 64
Email pia.kvillemo@ki.se

Study information

Study designIntervention study with double-blind two-arm randomised controlled trial (RCT) design
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Internet/virtual
Study typePrevention
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleA brief digital intervention targeting prevention of alcohol and other substance use among adolescents and young adults: a randomised controlled trial
Study objectivesThe intervention will have positive effects with regard to alcohol and other substance consumption among young people with risk use, and potential and benefit may include decreased or ceased risk behaviours
Ethics approval(s)Approved 03/07/2019, Swedish Ethical Review Authority (Box 2110, 750 02 Uppsala, Sweden; +46 010-475 08 00; registrator@etikprovning.se), ref: 2019-03249
Health condition(s) or problem(s) studiedRisky substance use
InterventionRandomisation process
The study is double-blind, thus neither the participant or the researchers know which participant is allocated to the intervention or to the active control condition. After baseline assessment, the participants will be automatically randomised to one of the two study groups by a computer program using an unrestricted randomisation protocol. Participants will then be informed about the name of their program and given access immediately.

Intervention arm
The intervention is interactive, digitally delivered in a fully automated form, and requires approximately 20 minutes to complete. Tailored feedback is given to the participants based on their responses to previous assessment and suggestions on how to respond to this feedback are provided. This interactivity imitates a face-to face 'dialogue' with techniques from motivational interviewing (MI) such as an empathic approach, rolling with resistance, aiming at creating a dissonance between actual and desired behaviour, raising self-efficacy, and at the same time avoiding argumentation. The intervention consists of three main components and additional health-related information.

Control arm
The control group will receive the same general health-related information as those in the intervention group, i.e., the additional information provided to the intervention group.

Follow-up
Baseline assessment at study entry and two follow-up assessments at 3 and 6 months will be carried out for both groups (intervention and active control). The primary outcome is reduction in alcohol use. Secondary outcomes concern other substance use, mental health, sexual risk behaviours, and perceived peer pressure. Moreover, the study involves analyses of potential moderators including perfectionism, openness to parents, help-seeking, and background variables.
Intervention typeBehavioural
Primary outcome measureCurrent primary outcome measure as of 10/01/2020:
Reduction in alcohol use, assessed by AUDIT-C and Daily Drinking Questionnaire (DDQ).
Self-reported at baseline and 3-month follow-up (primary endpoint)

Previous primary outcome measure:
Reduction in alcohol use, assessed by AUDIT-C and Daily Drinking Questionnaire (DDQ). Self-reported at baseline, 3-month follow-up (primary endpoint) and 6-month follow-up
Secondary outcome measuresSelf reported at baseline, 3-month follow-up and 6-month follow-up:
1. Drug use measured by Drug Use Disorder Identification Test (DUDIT)
2. Wellbeing measured by the WHO-5 Well-Being Index
3. Peer pressure measured by the Peer pressure inventory
4. Multiple choice questions regarding sexual risk behaviour.
5. Binge drinking measured by AUDIT-C (added 10/01/2020)
6. Frequency of alcohol consumption measured by AUDIT-C (added 10/01/2020)
7. Amount of alcohol consumed a typical day when alcohol is consumed measured by AUDIT-C (added 10/01/2020)
Overall study start date01/05/2019
Completion date15/12/2023

Eligibility

Participant type(s)Healthy volunteer
Age groupMixed
SexBoth
Target number of participants800
Key inclusion criteria1. 15-25 years old
2. Positive CRAFFT screen (=2 or more)
3. Access to Internet
4. Understand Swedish language
Key exclusion criteria1. Not meeting inclusion criteria
2. Declined to participate after screening
Date of first enrolment15/01/2020
Date of final enrolment15/10/2020

Locations

Countries of recruitment

  • Sweden

Study participating centre

STAD, Centre for Psychiatry Research, Karolinska Institutet/Stockholm County Council
Norra Stationsgatan 69
Stockholm
113 64
Sweden

Sponsor information

Karolinska Institutet
University/education

Norra Stationsgatan 69
Stockholm
113 64
Sweden

Phone +46 070 673 48 64
Email pia.kvillemo@ki.se
Website http://www.ki.se
ROR logo "ROR" https://ror.org/04hmgwg30

Funders

Funder type

Government

National Public Health Agency of Sweden

No information available

Alcohol Research Council of the Swedish Alcohol Retailing Monopoly

No information available

Svenska Forskningsrådet Formas
Government organisation / National government
Alternative name(s)
Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning, Swedish Research Council Formas, Formas
Location
Sweden

Results and Publications

Intention to publish date31/10/2024
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
Publication and dissemination planStudy protocol to be published in a scientific journal (eg BMJ Open). Pre-post, and long-term follow-up results to be published in a scientific journal (eg BMJ Open).
IPD sharing planThe data sharing plans for the current study are unknown and will be made available at a later date.

Editorial Notes

22/11/2022: The following changes have been made:
1. The intention to publish date has been changed from 31/10/2023 to 31/10/2024.
2. The overall trial end date has been changed from 15/10/2021 to 15/12/2023 and the plain English summary updated accordingly.
12/04/2022: The intention to publish date has been changed from 15/10/2021 to 31/10/2023.
10/01/2020: The following changes have been made:
1. The recruitment start date has been changed from 15/10/2019 to 15/01/2020.
2. The overall trial end date has been changed from 15/10/2020 to 15/10/2021.
3. The primary outcome measure was updated.
4. The secondary outcome measures were updated.
13/09/2019: Trial's existence confirmed by Etikprövningsmyndigheten (Swedish Ethical Approval Authority).