Pharmacopsychiatry 2013; 46(03): 114-119
DOI: 10.1055/s-0032-1331703
Original Paper
© Georg Thieme Verlag KG Stuttgart · New York

Predicting a ‘Combined Treatment Outcome’ in Chronic Schizophrenia: The Role of Demographics, Symptomatology, Functioning and Subjective ­Well-being

D. Naber
1   Department of Psychiatry and Psychotherapy, University of Hamburg, Hamburg, Germany
,
S. Kollack-Walker
2   Lilly, USA, LLC, Indianapolis, IN, USA
,
J. Chen
2   Lilly, USA, LLC, Indianapolis, IN, USA
,
V. L. Stauffer
3   Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
,
B. J. Kinon
3   Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
,
M. Case
2   Lilly, USA, LLC, Indianapolis, IN, USA
,
H. Ascher-Svanum
3   Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
,
S. Kapur
4   Institute of Psychiatry, King’s College of London, London, U.K.
,
J. M. Kane
5   Zucker Hillside Hospital, Glen Oaks, NY, USA
› Author Affiliations
Further Information

Publication History

received 05 June 2012
revised 09 November 2012

accepted 13 November 2012

Publication Date:
04 January 2013 (online)

Abstract

Objectives:

The aim of this study was to determine what variables predict a ‘combined treatment outcome’ (COMBOUT) in patients with chronic schizophrenia.

Methods:

This analysis (n=522) was based on a randomized, double-blind, flexible-dose, 12-week study that enrolled chronically-ill patients diagnosed with schizophrenia or a related disorder. COMBOUT was assessed using the PANSS for symptoms, CGI-S for overall clinical status, MADRS for depressive symptoms, QLS for functioning/QOL, and SWN-K for subjective well-being. Possible predictors included demographics as well as baseline scores (Model I), and early change (week 2) scores (Model II).

Results:

Model I: significantly better outcome (higher COMBOUT score) was observed in patients with lower MADRS (T= − 6.36; p<0.001) or higher QLS (T=5.05; p<0.001) scores at baseline. Model II: significantly better COMBOUT was observed in patients with early improvement of QLS (T=4.93; p<0.001), SWN-K (T=3.88; p<0.001), PANSS (T= − 2.32; p=0.021) and CGI-S scores (T= − 2.22; p=0.027). Changes in EPS were not predictors of COMBOUT in the models tested.

Conclusion:

COMBOUT at endpoint was predicted by lower depressive symptom score and higher QOL at baseline and by early improvement in psychopathology, quality of life and subjective well-being.

 
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