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Snow Control
DOI 10.1186/ISRCTN93702927
ClinicalTrials.gov identifier
EudraCT number
Public title Snow Control
Scientific title Snow Control: a web-based self-help tool to reduce dependence in problematic cocaine users a randomized controlled trial
Acronym SC
Serial number at source #001
Study hypothesis A web-based cognitive-behavioral self-help tool is more effective in reducing cocaine dependence than an active control condition
Lay summary Not provided at time of registration
Ethics approval Local Ethics Committee of the Canton of Zurich December 1, 2009 (reference number: KEK-StV-Nr. 70/09)
Study design Randomised controlled trial
Countries of recruitment Austria, Germany, Switzerland
Disease/condition/study domain Cocaine use/misuse/dependence
Participants - inclusion criteria 1. Age between 17 - 65
2. High speed internet access
Participants - exclusion criteria 1. Beck Depression Inventory (BDI)-V>45
2. Suicidal thoughts
Anticipated start date 01/05/2010
Anticipated end date 31/08/2011
Status of trial Completed
Patient information material Not available in web format, please use the contact details below to request a patient information sheet
Target number of participants 160
Interventions 1. Snow Control in the intervention group is a six week self-help intervention tool to reduce cocaine consumption
2. Snow Control in the intervention group is based on classical cognitive behavioural therapy (CBT) approaches for:
2.1. Cocaine addiction
2.2. Motivational interviewing for cocaine using individuals
2.3. Principles of self control
2.4. Relapse-Prevention Model
3. It is structured into three parts and includes the following eight modules that will be activated for access week by week with three additional voluntary modules (module 5, 6 and 7) that can be activated during week 5-6
4. In the control condition, participants receive 8 psycho-educative information on the risks, potential harms and other important information on their cocaine consumption also in a weekly manner within 6 weeks of intervention. After having read this information they participate in a weekly quiz to control their information knowledge.
5. Follow up will be at 6 months for both groups after the 6 intervention weeks
Primary outcome measure(s) Severity of Dependence Scale SDS
Secondary outcome measure(s) 1. Cocaine Craving Questionnaire Brief (CCQ-B)
2. Simplified version of the Beck Depression Inventory (BDI-V)
3. Alcohol, tobacco and other substance use (last 30 days)
Sources of funding Swiss Office for the Coordination of Addiction Facilities (INFODROG) (Switzerland) (Nr. 4962/09/ZHZ/WSOK)
Trial website http://www.snow-control.ch
Publications 1. 2011 protocol in http://www.ncbi.nlm.nih.gov/pubmed/21943294
Contact name Dr  Michael  Schaub
  Address Konradstrasse 32
  City/town Zurich
  Zip/Postcode 8031
  Country Switzerland
  Email michael.schaub@isgf.uzh.ch
Sponsor Swiss Office for the Coordination of Addiction Facilities (INFODROG) (Switzerland)
  Address Eigerplatz 5
Postfach 460
  City/town Bern 14
  Zip/Postcode 3000
  Country Switzerland
  Sponsor website: http://www.infodrog.ch
Date applied 18/03/2011
Last edited 20/12/2011
Date ISRCTN assigned 06/05/2011
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