Condition category
Mental and Behavioural Disorders
Date applied
22/07/2005
Date assigned
22/07/2005
Last edited
29/11/2012
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Not provided at time of registration

Trial website

Contact information

Type

Scientific

Primary contact

Prof John Strang

ORCID ID

Contact details

King's College London
Institute of Psychiatry
National Addiction Centre
4 Windsor Walk
Camberwell
London
SE5 8AF
United Kingdom
+44 (0)20 7848 0438
john.strang@kcl.ac.uk

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

071301

Study information

Scientific title

Acronym

Study hypothesis

The primary hypothesis to be tested is that: Motivational Interviewing (MI) will reduce frequency of cannabis use in comparison to an equally credible Drug Information and Advice (DIA) intervention after three months among young people aged 16 to 19 years old in Further Education (FE) colleges.

Ethics approval

Not provided at time of registration

Study design

Randomised controlled trial

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Other

Trial type

Treatment

Patient information sheet

Condition

Drug addiction

Intervention

Interventions will be delivered by practitioners trained in both interventions, and will embrace the range of drugs currently being used by the young person. Recorded interventions will be analysed to identify process mechanisms associated with outcomes. Follow-up data will be collected after three and six months.

Intervention type

Other

Phase

Not Specified

Drug names

Primary outcome measures

The primary outcome will be frequency of use of cannabis.

Secondary outcome measures

1. Secondary outcomes will include the use of other illegal drugs and interactional indicators of risk
2. Secondary measures of use of cannabis, cigarettes, alcohol, stimulant drugs will include both consumption and related problems, including dependence

Overall trial start date

01/01/2004

Overall trial end date

09/01/2005

Reason abandoned

Eligibility

Participant inclusion criteria

1. Weekly cannabis smokers
2. Aged 16 to 19 years
3. In Further Education (FE) colleges

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

320

Participant exclusion criteria

No exclusion criteria

Recruitment start date

01/01/2004

Recruitment end date

09/01/2005

Locations

Countries of recruitment

United Kingdom

Trial participating centre

King's College London
London
SE5 8AF
United Kingdom

Sponsor information

Organisation

King's College London (UK)

Sponsor details

Institute of Psychiatry
De Crespigny Park
London
SE5 8AF
United Kingdom
g.dale@iop.kcl.ac.uk

Sponsor type

University/education

Website

Funders

Funder type

Charity

Funder name

The Wellcome Trust (UK) (grant ref: 071301)

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

1. 2008 results in http://www.ncbi.nlm.nih.gov/pubmed/18778385

Publication citations

  1. Results

    McCambridge J, Slym RL, Strang J, Randomized controlled trial of motivational interviewing compared with drug information and advice for early intervention among young cannabis users., Addiction, 2008, 103, 11, 1809-1818, doi: 10.1111/j.1360-0443.2008.02331.x.

Additional files

Editorial Notes