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Drug therapies for chronic hepatitis C infection: a cost-effectiveness analysis #MMPMID28401125
Wong WWL; Lee KM; Singh S; Wells G; Feld JJ; Krahn M
CMAJ Open 2017[Jan]; 5 (1): E97-E108 PMID28401125show ga
Background:: Before 2011, pegylated interferon plus ribavirin was the standard therapy for chronic hepatitis C. Interferon-free direct-acting antiviral agents were then approved. Although these treatments appear to be more effective, they are substantially more expensive. In anticipation of the need for information regarding the comparative cost-effectiveness of new regimens in a recent therapeutic review, we conducted the analysis to inform listing decision in Canada. Methods:: A state-transition model was developed in the form of a cost-utility analysis. Regimens included in the analysis were comprehensive. The cohort under consideration had a mean age of 50 years. The cohort was defined by treatment status and cirrhosis status. Inputs for the model were derived from published sources and validated by clinical experts. Results:: For each genotype 1 population, at least 1 of the interferon-free agents appeared to be economically attractive compared with pegylated interferon-ribavirin, at a willingness-to-pay of $50 000 per quality-adjusted life-year. The drug that was the most cost-effective varied by population. For genotype 2-4 population, the direct-acting antiviral therapies appeared not to be economically attractive compared with pegylated interferon-ribavirin for the treatment-naive; however, there were direct-acting antiviral therapies that appeared to be attractive when compared with no treatment for the treatment-experienced. Interpretation:: Public health policy should be informed by consideration of health benefit, social and ethical values, feasibility and cost-effectiveness. Our analysis assists the development of reimbursements and policies for interferon-free direct-acting antiviral agent regimens for chronic hepatitis C infection by informing the last criterion. Considering the rapid development of treatments for chronic hepatitis C, further update and expanded reviews will be necessary.
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CMAJ+Open 2017 ; 5 (1): E97-E108
