Online Brief Advice Intervention for Heavy Cannabis Users
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Educational video, Relaxation video.
- Who it may be relevant to
- Registry conditions: Cannabis User. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United Kingdom
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Randomised-Controlled Trial of an Online Brief Advice Intervention for Heavy Cannabis Users (RECALIBRATE)
Overview
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
- Other Educational video
Short educational video on cannabis withdrawal and personalised feedback on the Cannabis Withdrawal Scale. - Other Relaxation video
Relaxation video and mood questionnaire with personalised feedback
Primary outcome measures
- Substance (cannabis) use awareness and insight scale (SAS) [Time frame: Day 1]
Secondary outcome measures (1)
- Intention to change cannabis use [Time frame: Day 1]
Eligibility criteria
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
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Single blind
- Primary purpose
- Other
Study locations
United Kingdom · 1 center
- Denmark Hill — London
Identifiers
NCT: NCT07379736 · REMAS: 49272