A Randomized Comparison of Aripiprazole and Risperidone for the Acute Treatment of First-Episode Schizophrenia and Related Disorders: 3-Month Outcomes.

Research findings are particularly important for medication choice for first-episode patients as individual prior medication response to guide treatment decisions is unavailable. We describe the first large-scale double-masked randomized comparison with first-episode patients of aripiprazole and risperidone, 2 commonly used first-episode treatment agents. One hundred ninety-eight participants aged 15-40 years with schizophrenia, schizophreniform disorder, schizoaffective disorder or psychotic disorder Not Otherwise Specified, and who had been treated in their lifetime with antipsychotics for 2 weeks or less were randomly assigned to double-masked aripiprazole (5-30 mg/d) or risperidone (1-6 mg/d) and followed for 12 weeks.

Time to treatment response in first-episode schizophrenia: should acute treatment trials last several months?

Objective: Response patterns may differ between patients with first-episode and multiepisode schizophrenia. This analysis explored trial duration with first-episode patients and asked whether early limited improvement predicts ultimate lack of treatment response with first-episode patients as it does with multiepisode patients.

Method: One hundred twelve subjects (mean age = 23.

Lack of an inverse relationship between duration of untreated psychosis and cognitive function in first episode schizophrenia.

This study assessed the relationship between duration of untreated psychosis (DUP) and cognitive measures in order to assess if longer DUP was associated with worse performance. One hundred two patients with first episode schizophrenia or schizoaffective disorder were assessed on cognitive measures of speed of processing, episodic memory, executive function, and visual spatial processing at baseline (when patients were drug naive and after 16 weeks of olanzapine or risperidone treatment), so that a change score could be derived. DUP was defined by the emergence of psychiatric symptoms and the emergence of psychotic symptoms.

Randomized comparison of olanzapine versus risperidone for the treatment of first-episode schizophrenia: 4-month outcomes.

Objective: The authors compared 4-month treatment outcomes for olanzapine versus risperidone in patients with first-episode schizophrenia spectrum disorders.

Method: One hundred twelve subjects (70% male; mean age=23.3 years [SD = 5.