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Revista Española de Salud Pública

On-line version ISSN 2173-9110Print version ISSN 1135-5727

Abstract

NAVARRO SARABIA, Federico et al. Economic evaluation of rheumathoid arthritis monotherapy with tocilizumab and adalimumab. Rev. Esp. Salud Publica [online]. 2013, vol.87, n.4, pp.343-350. ISSN 2173-9110.  http://dx.doi.org/10.4321/S1135-57272013000400005.

Background: Tocilizumab (TCZ) was superior to adalimumab (ADA), as monotherapy, in reducing signs and symptoms of adult rheumatoid arthritis (RA) when methotrexate (MTX) treatment is poorly tolerated or inappropriate. The aim of the study was to analyze the cost-effectiveness of TCZ vs ADA in these patients. Methods: Economic evaluation of the cost per response or remission of TCZ vs ADA from ADACTA (time horizon: 24 weeks). Clinical response criteria ACR or disease remission criteria, DAS28. Perspective: National Health System. The costs included (acquisition, administration and monitoring of medicines; € 2012) were obtained from Spanish sources. Simple univariate sensitivity analyzes were performed. Results: ACR20, ACR50 and ACR70 response rates with TCZ and ADA were obtained in 65% and 49.4% (p <0.01), 47.2% and 27.8% (p <0.01); and 32.5% and 17.9% (p <0.01) of patients, respectively. DAS28 remission occurred in 39.9% and 10.5%, respectively (p <0.0001). The cost per response was lower with TCZ than with ADA (ACR20: € 8,105 and € 11,553; ACR50: € 11,162 and € 20,529; ACR70: € 16,211 and € 31,882) respectively. The cost of DAS28 remission was € 13,204 and € 54,352, respectively. Treatment with TCZ was dominant (more effective, with lower costs vs ADA) in all scenarios analyzed. Conclusions: According to this analysis, in Spain TCZ monotherapy is an efficient strategy vs ADA for treating RA patients intolerant to MTX or in which there is inappropriate response.

Keywords : Rheumatoid arthritis; Cost-effectiveness; Adalimumab; Tocilizumab.

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