NCT00783185

Dual Diagnosis (Psychosis and Cannabismisuse): Comparison of Specialized Treatment Versus Unspecified Treatment

Dual Diagnosis Psychosis and Substance Abuse: Short- and Middle-term Changes in Symptomatology After Visiting a Group Education Programme to Reduce Consumption of Cannabis

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 50 (estimated)
• Sponsor: University of Konstanz · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

Intention of the study is to examine, if the symptomatology of dual diagnosis patients is less severe after a special indication training for reduction of cannabis consumption in comparison to unspecified trainings. Point of interest is psychopathology and consumerism.

Detailed description

Dual diagnosis patients (psychosis and cannabis abuse) account for more clinical admissions than single diagnosis patients. Cannabis misuse is a known risk factor for recurrence of psychosis. A specified intervention on the basis of a manual for schizophrenic substance abusers is administered to inpatients in a specialized unit for young schizophrenic patients in a psychiatric hospital. The control group, same indication (psychotic disorder and cannabis misuse) receives social competence training (specified for schizophrenic patients as well). Admission to groups is randomly.

Conditions

• Psychotic Disorders
• Marijuana Abuse
• Intervention

Interventions

Type	Name	Description
BEHAVIORAL	Cannabis-Consumption-Reduction-Training	8 sessions within 4 weeks (twice a week, 45 minutes each) Cognitive behavioral therapy with focus on cannabis abuse
BEHAVIORAL	Social competence Training	8 sessions within 4 weeks (twice a week, 45 minutes) training to develop and ameliorate social competences

Timeline

• Start date: 2006-01-01
• Primary completion: 2009-06-01
• Completion: 2010-01-01
• First posted: 2008-10-31
• Last updated: 2010-01-12

Locations

1 site across 1 country: Germany