An Efficacy and Safety Study of Long Acting Injectable Risperidone and Oral Risperidone in Participants With Schizophrenia or Schizoaffective Disorder

Schizophrenia Clinical Trial

Official title: A Randomized, Open-label, Active-controlled Study to Evaluate Social Functioning of Long Acting Injectable Risperidone and Oral Risperidone in the Treatment of Subjects With Schizophrenia or Schizoaffective Disorder

Status Completed

Clinical Trial Summary

The purpose of this study is to evaluate the efficacy and safety of long acting injectable (LAI) risperidone and oral risperidone treatment on participants with schizophrenia (psychiatric disorder with symptoms of emotional instability, detachment from reality, often with delusions and hallucinations, and withdrawal into the self) or schizoaffective disorder (a mixed psychiatric disorder relating to a complex psychotic state that has features of both schizophrenia and a mood disorder such as bipolar disorder).

Clinical Trial Description

This is a randomized (treatment group assigned by chance), open-label (all involved people know the identity of the study drug), active-controlled study to evaluate the improvement in social functioning among participants with schizophrenia taking LAI risperidone and oral risperidone tablet. The study drug will be administered for 52 weeks in flexible dose (range as per Investigator's discretion) and a total of 11 assessment visits will be conducted per participant, including Screening. The participant may be withdrawn from the trial for any medical reason at the sole discretion of the investigator. Before starting the study treatment, participants undergo the period of switching from the previous medication to risperidone for 4 weeks, and then they will be evaluated for tolerability for 2 weeks (run-in period for stabilizing to risperidone). In this 2-week period, participants will take oral risperidone. The efficacy will be primarily evaluated through Personal and Social Performance Scale. Safety will be evaluated through Abnormal Involuntary Movement Scale, Barnes Akathisia Rating Scale, and Simpson-Angus Rating Scale. Participants' safety will be monitored throughout the study. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Psychotic Disorders
• Schizophrenia

• NCT number: NCT00992407
• Study type: Interventional
• Source: Janssen Korea, Ltd., Korea
• Status: Completed
• Phase: Phase 4
• Start date: December 2007
• Completion date: December 2010