Abstract
Background:Current management of ulcerative colitis (UC) is aimed to treat active disease and to maintain remission. For patients in whom conventional treatment is no longer effective, biological or small molecule therapy may be an option. The aim was to assess the cost-effectiveness of induction and maintenance treatment up to 1 year of UC with infliximab (IFX), adalimumab (ADA), golimumab, vedolizumab (VDZ) and tofacitinib (TFB) compared with standard of care (SoC) in Poland.Methods:A hybrid decision tree/Markov model was used to estimate the expected costs and effects of four biologics, TFB and placebo in patients with the diagnosis of moderate to severe UC who had an inadequate response, lost response, or were intolerant to a conventional therapy. Prior exposure to anti-TNF was considered. At the beginning of the maintenance phase, the decision to continue biological therapy was determined by the achievement of response at the end of induction. Efficacy data were obtained from a network meta-analysis using placebo as the common comparator. Costs were presented in 2018 Polish zloty (PLN) and outcomes included quality-adjusted life-years (QALYs). The analysis was performed from the Polish public payer’s perspective and lifetime horizon was set.Results:In anti-TNF naïve, IFX and VDZ were characterized by the most favourable incremental cost-effectiveness ratios (ICURs) compared with SoC, PLN211,250.78 and PLN361,694.61/QALY (€49,589.38 and €84,904.84/QALY), respectively. In anti-TNF-exposed population the most effective treatment was TFB. Both ADA and VDZ were more effective than SoC; however, ICUR values were much above the cost-effectiveness threshold. The incorporation of biosimilars reversed the ranking of treatments in relation to the growing ICUR.Conclusion:Although ICUR values for all biological therapies exceeded the acceptability threshold in Poland, for anti-TNF-naïve UC patients IFX and for anti-TNF-exposed UC patients VDZ are currently the most cost-effective alternatives.
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