Cannabis User
Conditions
Keywords
Cannabis, Brief Intervention
Brief summary
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.
Interventions
OTHEREducational video
Short educational video on cannabis withdrawal and personalised feedback on the Cannabis Withdrawal Scale.
OTHERRelaxation video
Relaxation video and mood questionnaire with personalised feedback
Sponsors
King's College London
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Substance (cannabis) use awareness and insight scale (SAS) | Day 1 | Measured by the Substance Use Awareness and Insight Scale, designed to assess awareness in substance use disorder. Minimum value = 0, maximum value 70. Higher score = worse outcome, less insight and awareness. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Intention to change cannabis use | Day 1 | This outcome measures participants' motivation and readiness to alter their cannabis consumption behaviours following the intervention. The Intention to Change Cannabis Use scale will be used which is adapted from Motivation to Stop Scale. Minimum score = 1, maximum score = 7. Higher score = better outcome, higher motivation to stop. |
Countries
United Kingdom
Contacts
CONTACTEdward Chesney, MRCPsych
Outcome results
None listed