Evaluation of an internet-based one-time counselling intervention for young cannabis- or alcohol-users
| ISRCTN | ISRCTN79857771 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN79857771 |
| Secondary identifying numbers | N/A |
- Submission date
- 29/10/2010
- Registration date
- 25/11/2010
- Last edited
- 25/11/2010
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year
Plain English summary of protocol
Not provided at time of registration
Contact information
Dr Peter Tossmann
Scientific
Scientific
Behaimstr. 20
Berlin
10585
Germany
| tossmann@delphi-gesellschaft.de |
Study information
| Study design | Randomised controlled trial |
|---|---|
| Primary study design | Interventional |
| Secondary study design | Randomised controlled trial |
| Study setting(s) | Other |
| Study type | Treatment |
| Participant information sheet | Can be found at http://www.drugcom.de/chatstudieninfo.pdf |
| Scientific title | Evaluation of an internet-based one-time counselling intervention for young cannabis- or alcohol-users: an online randomised controlled trial |
| Study objectives | A one-time professional chat-based intervention for problematic cannabis- and alcohol-users is more effective than a chat-based interaction solely dealing with general addiction issues. |
| Ethics approval(s) | Ethics committee of the University of Applied Sciences Magdeburg approved on the 9th September 2010 (ref: AZ-4973-14) |
| Health condition(s) or problem(s) studied | Alcohol abuse or addicition, cannabis abuse or addicition |
| Intervention | Participants in the experimental condition receive a one-time brief intervention delivered via internet-chat. During the intervention, Motivational Interviewing (MI) is applied by trained psychologists. Participants in the control condition receive information about addiction in general and about the results in the self-test. Each arm involves a one-time chat-based intervention with a duration of approximately 30 minutes, with follow-up online surveys at one month and three months. |
| Intervention type | Other |
| Primary outcome measure | Alcohol users: 1. Mean weekly alcohol consumption: consumed amount of pure alcohol in the past 7 days 2. Mean number of consumption days in the past 30 days 3. Proportion of subjects not drinking hazardously: i.e., not drinking more than 24 grams of pure alcohol (men) or 12 grams (women) on any day during the last week Cannabis users: 4. Mean number of consumption days in the past 30 days Both alcohol and cannabis users: 5. Allocation on the Stages of Change (Transtheoretical Model) measured by the "Readiness to Change Questionnaire" (RTCQ) Measured using follow-up online surveys at one month and three months. |
| Secondary outcome measures | Satisfaction with the received intervention, measured using follow-up online surveys at one month and three months. |
| Overall study start date | 30/09/2010 |
| Completion date | 31/03/2011 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Adult |
| Lower age limit | 18 Years |
| Sex | Both |
| Target number of participants | 194 |
| Key inclusion criteria | The study aims at participants of two automated internet-based self-tests for cannabis- or alcohol-users installed on the prevention website www.drugcom.de. In order to be eligible for the study, those users have to meet the following criteria: 1. Problematic alcohol use defined as: 1.1. Alcohol Use Disorders Identification Test (AUDIT) score of 16 or more, or 1.2. Alcohol consumption of more than 60 g per day (men)/40 g per day (women), or 1.3. Binge drinking (i.e. at least 5 units of alcohol per occasion) at least once per week 2. Problematic cannabis use defined as 4 or more points in the Severity of Dependence Scale (SDS) (men) or 2 points or more (women) 3. Aged 18 - 35 years, either sex |
| Key exclusion criteria | Participants who currently receive professional help or participate at a self help group. |
| Date of first enrolment | 30/09/2010 |
| Date of final enrolment | 31/03/2011 |
Locations
Countries of recruitment
- Germany
Study participating centre
Behaimstr. 20
Berlin
10585
Germany
10585
Germany
Sponsor information
Federal Centre for Health Education (BZgA) (Germany)
Government
Government
Ostmerheimer Str. 200
Cologne
51109
Germany
| Website | http://www.bzga.de |
|---|---|
"ROR" |
https://ror.org/054c9y537 |
Funders
Funder type
Government
Federal Centre for Health Education (BZgA) (Germany)
Government organisation / National government
Government organisation / National government
- Alternative name(s)
- Federal Centre for Health Education, BZgA
- Location
- Germany
Results and Publications
| Intention to publish date | |
|---|---|
| Individual participant data (IPD) Intention to share | No |
| IPD sharing plan summary | Not provided at time of registration |
| Publication and dissemination plan | Not provided at time of registration |
| IPD sharing plan |
