Patients who met Diagnostic and Statistical Manual of Mental Disorders , @th edition , text revision ( DSM-IV-TR ) criteria for schizophrenia were randomized to @ weeks of double-blind treatment with fixed doses of lurasidone @ mg/d ( n = @ ) , lurasidone @ mg/d ( n = @ ) , quetiapine XR @ mg/d ( n = @ ) , or placebo ( n = @ ) , all dosed once daily in the evening , with food .