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Risperidone Alone Vs. Risperidone Plus Valproate in the Treatment of Patients With Schizophrenia and Hostility

2014-08-27 03:45:28 | BioPortfolio

Summary

This is an eight-week open-label randomized parallel group clinical trial focusing on the comparison of risperidone alone with risperidone plus valproate among hospitalized adult patients diagnosed with schizophrenia who also exhibit problems with hostility. Patients may have already been receiving risperidone or valproate (but not both) at study entry. Patients not receiving valproate at study entry were randomized to receive either risperidone alone or risperidone with valproate. For patients already receiving valproate at study entry, their antipsychotic medication(s) was switched to risperidone, and they were followed for a four-week lead-in period prior to baseline assessment and randomization to receive risperidone alone or continue with risperidone and valproate. We hypothesized that risperidone alone has an antiaggressive/antihostility effect, and that this effect is augmented by the co-administration of valproate.

Description

Background: Patients with schizophrenia who also exhibit hostile behavior pose a formidable challenge for clinicians. Hostile behavior is a frequent reason for psychiatric admission, and is an obstacle for the successful reintegration of patients back into the community. Current treatment approaches have generally not been assessed under controlled conditions.

Method: This is an eight-week open-label randomized parallel group clinical trial focusing on the comparison of risperidone alone with risperidone plus valproate among hospitalized adult patients diagnosed with schizophrenia who also exhibit problems with hostility. Patients may have already been receiving risperidone or valproate (but not both) at study entry. Patients not receiving valproate at study entry were randomized to receive either risperidone alone or risperidone with valproate. For patients already receiving valproate at study entry, their antipsychotic medication(s) was switched to risperidone, and they were followed for a four-week lead-in period prior to baseline assessment and randomization to receive risperidone alone or continue with risperidone and valproate. Blinded raters completed a battery of assessments, including the Positive and Negative Syndrome Scale, Buss-Durkee Hostility Inventory, Barratt Impulsiveness Scale, and the Overt Aggression Scale. We hypothesized that risperidone alone has an antiaggressive/antihostility effect, and that this effect is augmented by the co-administration of valproate.

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind, Primary Purpose: Treatment

Conditions

Schizophrenia

Intervention

Risperidone, divalproex

Location

Nathan S Kline Institute for Psychiatric Research and Rockland Psychiatric Center, Clinical Research and Evaluation Facility
Orangeburg
New York
United States
10962

Status

Completed

Source

Nathan Kline Institute for Psychiatric Research

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:45:28-0400

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Medical and Biotech [MESH] Definitions

A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.

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A type of schizophrenia characterized by abnormality of motor behavior which may involve particular forms of stupor, rigidity, excitement or inappropriate posture.

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