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

A brief digital intervention targeting prevention of alcohol and other substance use among adolescents and young adults: a randomised controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN91048246

Enrollment

800

Registered

2019-09-24

Start date

2020-01-15

Completion date

Unknown

Last updated

2026-03-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Risky substance use Mental and Behavioural Disorders Risky substance use

Interventions

Randomisation 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 base

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. 15-25 years old 2. Positive CRAFFT screen (=2 or more) 3. Access to Internet 4. Understand Swedish language

Exclusion criteria

Exclusion criteria: 1. Not meeting inclusion criteria 2. Declined to participate after screening

Design outcomes

Primary

Measure	Time frame
Current 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	—

Measure

Time frame

Current 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

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Secondary

Measure	Time frame
Self 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)	—

Measure

Time frame

Self 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)

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Countries

Sweden

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Mar 14, 2026