Analysis of the cost-effectiveness of antiviral therapies in chronic hepatitis B patients in Korea

Byung Kook Kim, So Young Kwon, Chang Hong Lee, Won Hyeok Choe, Hong Mi Choi, Hye Won Koo
2009 Korean Journal of Hepatology  
Backgrounds/Aims: The purpose of this study was to evaluate the cost-effectiveness of 1 year and up to 5 years of antiviral treatment for chronic hepatitis B (CHB). Methods: Two ten-health-state Markov models were developed for CHB patients. The proportion of patients remaining alive in each health state, and healthcare costs and quality-adjusted life years (QALYs) were determined during annual cycles of these Markov models. The total healthcare costs, life years, and QALYs over the 40-year
more » ... ver the 40-year time horizon of the model were calculated. The perspectives of the cost-effectiveness analysis were the Korean healthcare system and the healthcare needs of the CHB patient. Results: Short-course therapy with α-interferon or 1-year treatment with pegylated interferon α-2a, lamivudine (LMV), or adefovir (ADV) had limited impact on disease progression. In contrast, either LMV-ADV or ADV-LMV as rescue medication administered for 5 years resulted in a more sustained decrease in the rate of disease progression. The cost-effectiveness threshold in Korea was estimated to be approximately 25,000,000 South Korean won. LMV administered for 1 year is cost-effective in comparison with no treatment for both HBeAg-positive and HBeAg-negative CHB patients, but longer duration antiviral therapies administered for up to 5 years in CHB patients were found to be highly cost-effective by international standards. Conclusions: Antiviral treatment of CHB with LMV or ADV for up to 5 years using the alternative antiviral agent as rescue medication appears to be a cost-effective strategy for both HBeAg-positive and HBeAg-negative CHB patients in Korea. Economic evaluation of antiviral therapies should be studied further and updated, particularly for newer agents. (Korean J Hepatol 2008;15: 25-41)
doi:10.3350/kjhep.2009.15.1.25 pmid:19346783 fatcat:4plsfskljrebhoftbb4xeixtqe