Online Brief Advice Intervention for Heavy Cannabis Users (Recalibrate)

King's College London

Status: Enrolling

Conditions: Cannabis User

Treatments: Other: Educational video; Other: Relaxation video

Study type: Interventional

Funder types: Other

Identifiers

NCT07379736

REMAS: 49272

Details and patient eligibility

About

This project will evaluate whether a brief online intervention focused on cannabis withdrawal can increase awareness and insight about cannabis use disorder among daily cannabis users. The study will employ a randomised controlled trial design comparing an intervention consisting of a short educational video on cannabis withdrawal and personalised feedback on the Cannabis Withdrawal Scale, against a control condition of a relaxation video and mood questionnaire.

The investigators will aim to recruit at least 100 daily cannabis users (minimum 25 days of cannabis use /month and minimum 3.5g cannabis/week [low-medium daily use]) through Prolific, an online research participant platform. Potential participants will complete a brief screening questionnaire (1 minute) to confirm that participants meet inclusion criteria, before randomisation. The experiment will last 10-15 minutes and will include baseline demographic and substance use measures, the intervention or control condition, and outcome measures.

The primary outcome will be cannabis use awareness and insight as measured by the Substance Use Awareness and Insight Scale (SAS). Secondary outcomes will include intention to change cannabis use. This study aims to determine whether a short online intervention can increase awareness about cannabis withdrawal among heavy users. If successful, subsequent studies will be designed to assess these outcomes over the longer-term.

Enrollment: 100 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Adults (>18 years)
• Daily/near daily cannabis users (25+ days/month, min. 3.5g/week)
• Sufficiently fluent in English

Exclusion criteria

• Participant is prescribed medical cannabis by a healthcare professional

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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100 participants in 2 patient groups

Educational video

Experimental group

Description:

A short educational video on cannabis withdrawal and personalised feedback on the Cannabis Withdrawal Scale

Treatment:

Other: Educational video

Relaxation video

Active Comparator group

Description:

A relaxation video and mood questionnaire

Treatment:

Other: Relaxation video