Randomised controlled trial of the effectiveness of motivational interviewing in reducing drug-related risk among young people in further education colleges

ISRCTN	ISRCTN77850835
DOI	https://doi.org/10.1186/ISRCTN77850835
Protocol serial number	071301
Sponsor	King's College London (UK)
Funder	The Wellcome Trust (UK) (grant ref: 071301)

Prospectively registered

Protocol

Statistical analysis plan

Results

Individual participant data

Plain English summary of protocol

Not provided at time of registration

Prof John Strang
Scientific

King's College London
Institute of Psychiatry
National Addiction Centre
4 Windsor Walk, Camberwell
London
SE5 8AF
United Kingdom

Phone	+44 (0)20 7848 0438
Email	john.strang@kcl.ac.uk

Primary study design	Interventional
Study design	Randomised controlled trial
Secondary study design	Randomised controlled trial
Scientific title
Study objectives	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(s)	Not provided at time of registration
Health condition(s) or problem(s) studied	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
Primary outcome measure(s)	The primary outcome will be frequency of use of cannabis.
Key secondary outcome measure(s)	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
Completion date	09/01/2005

Participant type(s)	Patient
Age group	Adult
Sex	All
Target sample size at registration	320
Key inclusion criteria	1. Weekly cannabis smokers 2. Aged 16 to 19 years 3. In Further Education (FE) colleges
Key exclusion criteria	No exclusion criteria
Date of first enrolment	01/01/2004
Date of final enrolment	09/01/2005

King's College London

London
SE5 8AF
United Kingdom

Individual participant data (IPD) Intention to share	No
IPD sharing plan summary	Not provided at time of registration
IPD sharing plan

Output type	Details	Date created	Date added	Peer reviewed?	Patient-facing?
Results article	results	01/11/2008		Yes	No