4 years ago

A pragmatic analysis comparing once-monthly paliperidone palmitate versus daily oral antipsychotic treatment in patients with schizophrenia

Persons with schizophrenia often come in contact with the criminal justice system (CJS). This analysis of subjects with schizophrenia and a history of contact with the CJS estimated and compared mean cumulative function (MCF) of treatment failure events when treated with paliperidone palmitate (PP) or oral antipsychotics (OAs). All events identified during the full study period of the Paliperidone Palmitate Research in Demonstrating Effectiveness (PRIDE) trial were evaluated. Methods Subjects were randomly assigned to flexibly dosed, monthly, injectable PP (78–234mg) or daily OA in a 15-month prospective, open-label, multicenter US study (May 5, 2010–December 9, 2013). Subjects could continue participation after a treatment failure event. Multiple treatment failures in individual subjects were analyzed as recurrent events. Analyses estimated MCF of treatment failure events and MCF of institutionalizations (arrests, incarcerations, or psychiatric hospitalizations) during the 15-month study period. Results The ITT population included 226 (PP) and 218 (OA) subjects, of whom 41.2% and 40.4%, respectively, completed 15months of follow-up. The MCF of treatment failures and institutionalizations differed significantly in favor of PP compared with OA (P=0.007 and P=0.005, respectively). Overall, TEAEs were reported by 86.3% of subjects in the PP group and 81.7% in the OA group. Conclusions This pragmatic analysis suggests that, compared with OA, PP is not only more effective in delaying median time to treatment failure, but it also reduces the number of treatment failures and institutionalizations per person-year follow-up. Clinical trials registration: Clinicaltrials.gov identifier: NCT01157351

Publisher URL: www.sciencedirect.com/science

DOI: S0920996415300852

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