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BMC Psychiatry
Published in: BMC Psychiatry 1/2014

Open Access 01-12-2014 | Research article

Cost-effectiveness of asenapine in the treatment of bipolar disorder in Canada

Authors: Jean Lachaine, Catherine Beauchemin, Karine Mathurin, Dominique Gilbert, Maud Beillat

Published in: BMC Psychiatry | Issue 1/2014

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Abstract

Background

Bipolar disorder (BPD) is prevalent and is associated with a significant economic burden. Asenapine, the first tetracyclic antipsychotic approved in Canada for the treatment of BPD, has shown a comparable efficacy profile to other atypical antipsychotics. In addition, it is associated with a favourable metabolic profile and minimal weight gain potential. This study aimed to assess the economic impact of asenapine compared to olanzapine in the treatment of BPD in Canada.

Methods

A decision tree combined with a Markov model was constructed to assess the cost-utility of asenapine compared with olanzapine. The decision tree takes into account the occurrence of extrapyramidal symptoms (EPS), the probability of switching to a different antipsychotic, and the probability of gaining weight. The Markov model takes into account long-term metabolic complications including diabetes, hypertension, coronary heart diseases (CHDs), and stroke. Analyses were conducted from both a Canadian Ministry of Health (MoH) and a societal perspective over a five-year time horizon with yearly cycles.

Results

In the treatment of BPD, asenapine is a dominant strategy over olanzapine from both a MoH and a societal perspective. In fact, asenapine is associated with lower costs and more quality-adjusted life years (QALYs). Results of the probabilistic sensitivity analysis indicated that asenapine remains a dominant strategy in 99.2% of the simulations, in both a MoH and a societal perspective, and this result is robust to the many deterministic sensitivity analyses performed.

Conclusions

This economic evaluation demonstrates that asenapine is a cost-effective strategy compared to olanzapine in the treatment of BPD in Canada.
Appendix
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Metadata
Title
Cost-effectiveness of asenapine in the treatment of bipolar disorder in Canada
Authors
Jean Lachaine
Catherine Beauchemin
Karine Mathurin
Dominique Gilbert
Maud Beillat
Publication date
01-12-2014
Publisher
BioMed Central
Published in
BMC Psychiatry / Issue 1/2014
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/1471-244X-14-16

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