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CANDIS - Modular treatment of cannabis-related disorders

Quality level: 2

Summary

CANDIS is a modular therapy programme for the treatment of cannabis-related disorders based on Motivational Interviewing, on cognitive-behavioural techniques and problem-solving methods. The treatment programme is designed for young persons, aged 16 years or older and to adults who want to reflect on or change their cannabis consumption .Its efficiency is to be tested in a controlled, randomised intervention study (N=210). The treatment programme can be subdivided into a fully standardised treatment (ST) and a targeted standardised treatment (TST). The two active treatments (TST, ST) are expected to be more efficient than a delayed therapy control group.

Type of intervention:
treatment
Sub-area:
drug free treatment
Setting:
Type of approach:
Target group:
adults, children/young people
Age group:
-
Annual coverage:
210
Substances addressed:
cannabis
Evaluation type:
outcome evaluation, process evaluation
Country:
Germany
Start date:
01/11/2004
End date:

Overall objective

Aim: The aim is (a) to develop a modular treatment programme for cannabis-related disorders. This is meant to be based on treatment packages and components with proven efficiency in US and Australian studies. The treatment components are then to be adapted to the specific requirements of the affected target group. (b) The efficiency of this treatment programme has to be backed by a delayed treatment control group (Delayed Treatment Control, DTC). (c) The modular treatment programme can be subdivided into a fully standardised treatment (ST) and a targeted standardised therapy (TST). The efficiency of the standardised therapy is tested in comparison to a targeted standardised therapy. In this respect, the TST group is expected to be better suited. Methodology: a randomised, controlled intervention study is scheduled in which a sample group of 210 participants will be randomly allocated to three study conditions: 1. standardised treatment (ST; n=70) including motivation enhancing components (Motivational Enhancement Therapy, MET), elements from Cognitive Behavioural Therapy (CBT) and psychosocial problem solving components (Psychosocial Problem Solving, PPS) 2. targeted standardised treatment (TST; n=70), composed of the same three components as the ST, yet individually tailored to the specific problem profiles of the patients. 3. a delayed treatment control group (DTC; n=70). The most important outcome variables are the following: abstinence rate, frequency of cannabis consumption in the last for weeks, remnants in the ASI results (Addiction Severity Index, ASI) and the therapy compliance ratio. When testing the main hypothesis, the ST group is examined in combination with the TST group (n=140). In addition, the ASI is used to establish the allocation algorithm for the TST group. This proposed study is innovative and will contribute to deepen our knowledge on effective treatments for cannabis-related disorders. Furthermore, it will provide important information on the significance of the targeted individual allocation.

Abstract

CANDIS is a modular therapy programme for the treatment of cannabis-related disorders. Its efficiency is to be tested in a controlled, randomised intervention study (N=210). The treatment programme can be subdivided into a fully standardised treatment (ST) and a targeted standardised treatment (TST). The two active treatments (TST, ST) are expected to be more efficient than a delayed therapy control group. Furthermore, the efficiency of the standardised therapy is tested against the targeted standardised treatment. In this respect, the TST group is expected to be more efficient. The most important result variables are: abstinence rate, frequency of cannabis consumption in the last four weeks, remnants in the ASI results (Addiction Severity Index, ASI) and the therapy compliance ratio. The CANDIS treatment programme is based on Motivational Interviewing, on cognitive-behavioural techniques and problem-solving methods. In an individual therapy with 10 sessions, the participants achieve the competencies that enable them to be abstinent from cannabis. Special skills are trained in order to fix a 'target day': from this day onwards, the participant will be cannabis-abstinent. The participant is also trained how to maintain the therapy successes. The treatment programme is designed for young persons, aged 16 years or older and to adults who want to reflect on or change their cannabis consumption. The recruitment of appropriate participants is carried out by publishing information material (flyer, internet) and newspaper articles in regional newspapers. In addition, the programme is also presented in addiction counselling services and at teachers' conferences. In January 2006, the CANDIS therapy manual was completed and the first therapists were trained. From January to May 2006, as many as 50 patients participated in the CANDIS study. The treatment programme is scheduled to be on offer until the end of 2006. The CANDIS study is innovative and will contribute to deepening

The PDF contains the full intervention description including additional contact information.

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Page last updated: Friday, 20 January 2012