Trial document





This trial has been registered retrospectively.
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  DRKS00004375

Trial Description

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Title

Social Norms Intervention for the prevention of Polydrug usE

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Trial Acronym

SNIPE

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URL of the Trial

http://www.projectspin.eu/

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Brief Summary in Lay Language

The main goals of the SNIPE study are the development, implementation and evaluation of an internet-based social norms intervention for:
- the reduction of rates of alcohol and tobacco consumption
- the prevention of the use of cannabis, cocaine and synthetic drugs
- the prevention of polydrug use (i.e., the combination of multiple substances) among university and college- students in seven European countries.
How does the intervention work? Peers play an important role in the lives of university and college students. An overestimation of rates of drug use in the peer group can be associated with increases in rates of personal drug use. Previous studies indicated that students tend to overestimate consumption rates of legal drugs in their peers. Presenting students with a feedback that outlines the gap between misperceived and actual social norms regarding drug use has been shown to be an effective harm reduction method in the US and in Australia. Not so much is known about the feasibility and effectiveness of this approach in Europe.

The intervention will include a multi-language website. On this website, students will complete questionnaires regarding personal and peer drug use. Answers to these questionnaires will be used to develop a social norms feedback based on possible overestimations of rates of drug use in the peer group. Attitudes toward drug use as well as rates of drug use will be assessed at baseline and 5 months later. In each country, the control group will receive the intervention after it was completed in the intervention group.

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Brief Summary in Scientific Language

The aims of the SNIPE-study are a) to assess and compare self-reported consumption rates of licit and illicit drugs among university and college students from at least two universities or colleges in seven European countries

b) to examine the feasibility (i.e., understanding, utility and applicability) of a web-based social norms intervention in the participating countries, and

c) to compare the effects of this e-health intervention on related norms and consumption of both licit (alcohol, especially binge drinking, tobacco and sedatives) and illicit drug use (cannabis, cocaine, synthetic drugs, not prescribed medication, inhalants) in study participants allocated to the intervention with a control group over the course of 5 months.

The intervention will include a multi-language website. On this website, students will complete questionnaires regarding personal and peer drug use. Answers to these questionnaires will be used to develop a social norms feedback based on possible overestimations of rates of drug use in the peer group. Attitudes toward drug use as well as rates of drug use will be assessed at baseline and 5 months later. In each country, the control group will receive the intervention after it was completed in the intervention group.

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Organizational Data

  •   DRKS00004375
  •   2012/10/09
  •   [---]*
  •   yes
  •   Approved
  •   [---]*, Bremen - Ethikkommission der Universität
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Secondary IDs

  •   U1111-1134-9852 
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Health Condition or Problem studied

  •   Consumption of licit and illicit drugs
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Interventions/Observational Groups

  •   Intervention group: Attitudes toward and rates of legal and illegal drug use will be assessed at baseline. The intervention group will receive individualized social norms feedback. The website will remain online during the following 5 months. After five months, a second survey will be conducted and effects of the intervention on social norms and drug use will be measured in comparison to the control site.

  •   Control group: Attittudes toward and rates of legal and illegal drug use will be assessed at baseline and at 5 months. The control group will receive the intervention after the follow-up questionnaire was completed.
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Characteristics

  •   Interventional
  •   [---]*
  •   Non-randomized controlled trial
  •   Open (masking not used)
  •   [---]*
  •   No treatment
  •   Prevention
  •   Parallel
  •   N/A
  •   N/A
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Primary Outcome

Attitudes toward personal and peer drug use: Personal and perceived social norms regarding attitudes towards substance use will also be assessed. These items will again be based on existing research and will be tailored to the target population of students. The response options range from ‘Never ok to use’ to ‘Ok to use frequently if that is what the person wants to do‘.

Data will be assessed at baseline and 5 months later using an internt-based questionnaire.

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Secondary Outcome

Drug use:
The use of the following drugs will be assessed: Alcoholic beverages (beer, wine, spirits, etc.), tobacco products (cigarettes, chewing tobacco, cigars, etc.), cannabis (marijuana, pot, grass, hash, etc.), medication to improve academic performance (e.g. Ritalin) which was not prescribed, synthetic cannabis (spice, etc.), cocaine (coke, crack, etc.), ecstasy, other amphetamine-type stimulants (speed, meth, etc.), sedatives or sleeping pills (diazepam, alprazolam, flunitrazepam, midazolam, stilnoct, etc.) which were not prescribed, hallucinogens (LSD, acid, mushrooms, trips, ketamine, etc.), inhalants (nitrous, glue, petrol, paint thinner, etc.). In addition, binge drinking and polydrug use (alcohol and tobacco, alcohol and any other illicit drug) will be assessed. The choice of drugs included will be based on the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST), developed by the World Health Organisation.
Data will be assessed at baseline and 5 months later using an internt-based questionnaire.

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Countries of Recruitment

  •   Germany
  •   Belgium
  •   United Kingdom
  •   Denmark
  •   Slovakia
  •   Spain
  •   Turkey
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Locations of Recruitment

  • other 
  • other 
  • other 
  • other 
  • other 
  • other 
  • other 
  • other 
  • other 
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Recruitment

  •   Actual
  •   2012/01/18
  •   14000
  •   Multicenter trial
  •   International
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Inclusion Criteria

  •   Both, male and female
  •   18   Years
  •   no maximum age
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Additional Inclusion Criteria

Enrollment at participating universities

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Exclusion Criteria

[---]*

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Addresses

  • start of 1:1-Block address primary-sponsor
    • BIPS - Institut für Epidemiologie und Präventionsforschung
    • Mr.  Prof.  Hajo  Zeeb 
    • Achterstr. 30
    • 28359  Bremen
    • Germany
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    • BIPS - Institut für Epidemiologie und Präventionsforschung GmbH
    • Mr.  Prof.  Hajo  Zeeb 
    • Achterstraße 30
    • 28359  Bremen
    • Germany
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    • BIPS - Institut für Epidemiologie und Präventionsforschung GmbH
    • Ms.  Stefanie  Helmer 
    • Achterstraße 30
    • 28359  Bremen
    • Germany
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Sources of Monetary or Material Support

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    • Europäische Kommission [European Commission, Directorate General Justice, Freedom and Security (JLS/2009-2010/DPIP/AG)]
    • 1049  Brüssel
    • Belgium
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    •   [---]*
    •   [---]*
    •   [---]*
    •   [---]*
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Status

  •   Recruiting complete, follow-up complete
  •   2013/07/10
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Trial Publications, Results and other Documents

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* This entry means the parameter is not applicable or has not been set.