Obsessive-Compulsive Disorder Clinical Trial
Official title:
Cognitive and Behavioral Treatment of Compulsive Hoarding
This study developed and tested a specialized cognitive and behavioral treatment for the symptoms of hoarding disorder, including excessive acquiring, difficulty discarding items, and extensive clutter in the home.
Compulsive hoarding is characterized by excessive acquisition of possessions, difficulty
discarding possessions, and excessive clutter. This condition is resistant to standard
pharmacological and psychotherapeutic interventions that have proven effective in treating
other obsessive compulsive spectrum disorders. This study aimed to determine the
effectiveness of a specialized cognitive behavioral therapy (CBT) designed for treating
hoarding symptoms.
This study consists of three phases. In Phase 1, pilot data from previous studies were
examined to develop an intervention suitable for use in a waitlist trial. In Phase 2, pilot
study information were used to develop and test a treatment manual for compulsive hoarding.
During this phase, treatment was applied flexibly to allow for variations in treatment
duration and choice of techniques. During Phase 3, participants were randomly assigned to 26
weekly sessions of CBT or to a 12-week wait-list control, followed by active treatment for a
fixed duration of 26 sessions. Therapist adherence and competence were assessed through
audiotaped therapy sessions.
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