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Cariprazine versus risperidone monotherapy for treatment of predominant negative symptoms in patients with schizophrenia: a randomised, double-blind, controlled trial

The Lancet (British edition), 2017-03, Vol.389 (10074), p.1103-1113 [Peer Reviewed Journal]

Elsevier Ltd ;2017 Elsevier Ltd ;Copyright © 2017 Elsevier Ltd. All rights reserved. ;Copyright Elsevier Limited Mar 18, 2017 ;ISSN: 0140-6736 ;EISSN: 1474-547X ;DOI: 10.1016/S0140-6736(17)30060-0 ;PMID: 28185672 ;CODEN: LANCAO

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  • Title:
    Cariprazine versus risperidone monotherapy for treatment of predominant negative symptoms in patients with schizophrenia: a randomised, double-blind, controlled trial
  • Author: Németh, György, Dr ; Laszlovszky, István, PharmD ; Czobor, Pál, PhD ; Szalai, Erzsébet, MD ; Szatmári, Balázs, MD ; Harsányi, Judit, MD ; Barabássy, Ágota, MD ; Debelle, Marc, MD ; Durgam, Suresh, MD ; Bitter, István, Prof ; Marder, Stephen, Prof ; Fleischhacker, W Wolfgang, Prof
  • Subjects: Blood pressure ; Cholesterol ; Dopamine ; FDA approval ; Internal Medicine ; Patients ; Psychotropic drugs ; Schizophrenia ; Studies ; Vital signs
  • Is Part Of: The Lancet (British edition), 2017-03, Vol.389 (10074), p.1103-1113
  • Description: Summary Background Although predominant negative symptoms of schizophrenia can be severe enough to cause persistent impairment, effective treatment options are lacking. We aimed to assess the new generation antipsychotic cariprazine in adult patients with predominant negative symptoms. Methods In this randomised, double-blind, phase 3b trial, we enrolled adults aged 18–65 years with long-term (>2 year), stable schizophrenia and predominant negative symptoms (>6 months) at 66 study centres (mainly hospitals and university clinics, with a small number of private practices) in 11 European countries. Patients were randomly assigned (1:1) by an interactive web response system to 26 weeks of monotherapy with fixed-dose oral cariprazine (3 mg, 4·5 mg [target dose], or 6 mg per day) or risperidone (3 mg, 4 mg [target dose], or 6 mg per day); previous medication was discontinued over 2 weeks. The primary outcome was change from baseline to week 26 or end of treatment on the Positive and Negative Syndrome Scale factor score for negative symptoms (PANSS-FSNS) analysed in a modified intention-to-treat population of patients who had follow-up assessments within 5 days after last receipt of study drugs with a mixed-effects model for repeated measures. Safety was assessed in all patients who received at least one dose of study drug. This study is registered with EudraCT, number 2012-005485-36. Findings Between May 27, 2013, and Nov 17, 2014, 533 patients were screened and 461 (86%) patients were randomised to treatment (230 for cariprazine and 231 for risperidone); 460 were included in the safety population (one patient discontinued before study drug intake). 227 (99%) of 230 patients in the cariprazine group and 229 (99%) of 230 patients in the risperidone group were included in the modified intention-to-treat population (178 [77%] in each group completed 26 weeks of treatment). Mean daily doses were 4·2 mg (SD 0·6) for cariprazine and 3·8 mg (0·4) for risperidone. Treatment-emergent adverse events (eg, insomnia, akathisia, worsening of schizophrenia, headache, anxiety) were reported in 123 (54%) patients treated with cariprazine and 131 (57%) patients treated with risperidone. Use of cariprazine led to a greater least squares mean change in PANSS-FSNS from baseline to week 26 than did risperidone (−8·90 points for cariprazine vs −7·44 points for risperidone; least squares mean difference −1·46, 95% CI −2·39 to −0·53; p=0·0022; effect size 0·31). One patient in the risperidone group died of a cause regarded as unrelated to treatment. Interpretation Our results support the efficacy of cariprazine in the treatment of predominant negative symptoms of schizophrenia. Funding Gedeon Richter Plc.
  • Publisher: England: Elsevier Ltd
  • Language: English
  • Identifier: ISSN: 0140-6736
    EISSN: 1474-547X
    DOI: 10.1016/S0140-6736(17)30060-0
    PMID: 28185672
    CODEN: LANCAO
  • Source: ProQuest One Psychology
    AUTh Library subscriptions: ProQuest Central
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