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Pharmacoeconomic Outcomes for Pregabalin: A Systematic Review in Neuropathic Pain, Generalized Anxiety Disorder, and Epilepsy from a Spanish Perspective

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Abstract

Introduction

Pregabalin is an anticonvulsant approved in Europe for the treatment of neuropathic pain, as an adjunct therapy for epileptic seizures, and recently for generalized anxiety disorder. The aim of this study was to conduct a systematic review to evaluate the cost-effectiveness of pregabalin associated with the treatment of its labeled indications from a societal perspective in Spain.

Methods

Data from the MEDLINE database were searched using algorithms to identify relevant economic evaluations published in English or Spanish on pregabalin for the management of neuropathic pain, generalized anxiety disorder (GAD), and epilepsy in Spanish patients over the last 10 years.

Results

In total, 52 potentially relevant abstracts were identified from the MEDLINE database. Twenty manuscripts met the inclusion criteria. The majority of the selected papers (14/20) evaluated pregabalin for neuropathic pain from a societal perspective in Spain (5 economic models of pregabalin vs. gabapentin, 4 economic analyses of pregabalin in comparison with usual care, 4 economic evaluations comparing pregabalin monotherapy with add-on strategies, and one that evaluated different times of initiating pregabalin therapy). Five studies analyzed the use of pregabalin in Spain for the management of GAD (one cost-effectiveness model that compared pregabalin with venlafaxine, 2 secondary analyses in benzodiazepine-refractory patients, and 2 studies evaluating pregabalin vs. usual care in patients refractory to standard regimens). The last manuscript described a cost-effectiveness model that compared pregabalin versus levetiracetam use for the treatment of refractory partial epilepsy.

Conclusion

The majority of published evidence supports the possibility that pregabalin could be a cost-effective and/or cost-saving alternative for the treatment of refractory epilepsy, GAD, and neuropathic pain, in both treatment-naïve patients and in those who have demonstrated inadequate response or intolerance to previous therapy.

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Acknowledgments

An unrestricted grant was provided by Pfizer, S.L.U., Madrid, Spain, for the literature search, preparation of the tables, and for writing assistance. The authors wish to thank Emili González-Pérez (TFS Develop, Barcelona, Spain) for his assistance in writing this manuscript. Sponsorship and article processing charges for this study were funded by Pfizer, S.L.U. Dr. Darbà is the guarantor for this article and takes responsibility for the integrity of the work as a whole.

Conflict of interest

J Darbà, L. Kaskens, C. Pérez, E. Álvarez, R. Navarro-Artieda, and A. Sicras-Mainar declare that they have no conflict of interests as a consequence of this manuscript nor have they received any payment related with their authorship.

Compliance with ethics guidelines

This systematic review is based on previously conducted studies and does not involve any new studies of human or animal subjects performed by any of the authors.

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Correspondence to Josep Darbà.

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Darbà, J., Kaskens, L., Pérez, C. et al. Pharmacoeconomic Outcomes for Pregabalin: A Systematic Review in Neuropathic Pain, Generalized Anxiety Disorder, and Epilepsy from a Spanish Perspective. Adv Ther 31, 1–29 (2014). https://doi.org/10.1007/s12325-013-0088-2

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