- Diagnosis of schizophrenia (according to Diagnostic and Statistical Manual of Mental
Disorders [DSM]-IV-TR criteria and made by a specialist in psychiatry) and acute
exacerbation of schizophrenia requiring hospitalization
- Total PANSS score of ?60 at screening
- History of schizophrenia of ?10 years (from onset of prodromal symptoms)
- Axis-I DSM-IV-TR diagnosis other than schizophrenia
- Less than a full cycle has lapsed at time of screening following the last injection of
a depot antipsychotic
- Currently taking celecoxib or other selective cyclo-oxygenase 2 inhibitors, or other
antiinflammatory medication