Cost-effectiveness of protease inhibitor based regimens for chronic hepatitis C: a systematic review of published literature.

The treatment of chronic hepatitis C has experienced a substantial progress with the arrival of Boceprevir and Telaprevir due to the significant increase in sustained viral response. Given the high cost, their approval has been followed by great deal of pharmacoeconomic literature analysing their efficiency. A systematic review of this literature was carried out, evaluating both its results and the methodology employed. 54 references were revised including 11 studies, 6 on naive populations, 3 on pre-treated patients and 2 in both of them. As the clinical heterogeneity of patients influenced sustained viral response, therapy regimens were assessed conditioned to the interleukin 28B polymorphism, the early response to treatment and the level of fibrosis, among other variables. Most of the options evaluated on a naive population presented ICERs below the acceptability threshold. The same occurred in the pre-treated population, where the subgroups analysis is perceived as a methodological limitation.