Cost-effectiveness of IL28Β genotype-guided protease inhibitor triple therapy versus standard of care treatment in patients with hepatitis C genotypes 2 or 3 infection.

Autor: Bock JA; Weis Center for Research, Geisinger Medical Center, Danville, Pa., USA., Fairley KJ, Smith RE, Maeng DD, Pitcavage JM, Inverso NA, Williams MS
Jazyk: angličtina
Zdroj: Public health genomics [Public Health Genomics] 2014; Vol. 17 (5-6), pp. 306-19. Date of Electronic Publication: 2014 Sep 18.
DOI: 10.1159/000365939
Abstrakt: Background/aims: Triple therapy [adding protease inhibitors to standard of care (SOC)] dramatically increases treatment response in selected patients with hepatitis C virus (HCV). Interleukin 28B (IL28Β) genotyping helps predict responsiveness in these patients; however, the economic implications of IL28Β genotyping in HCV genotype 2 or 3 infected patients are unknown. Short- and long-term costs and outcomes of SOC therapy were calculated and used to determine the cost-effectiveness thresholds for using triple therapy in HCV genotype 2 or 3 infected patients.
Methods: Costs and outcomes were calculated by conducting cohort simulations on decision trees modeling SOC and triple therapy. Quality-adjusted life expectancies and long-term costs were predicted through Markov modeling.
Results: For triple therapy to be cost-effective, sustained virologic response (SVR) rates must improve (depending on age) by 7.91-11.11 and 9.06-12.8% for HCV genotype 2 and 3 cohorts, respectively. When triple therapy is guided by 2 IL28Β variants, a 2.63-3.72% improvement in SVR is needed for cost-effectiveness, and when guided by only one variant, a 1.4-8.91% improvement is needed.
Conclusions: Markov modeling revealed that modest increases in SVR rates from IL28Β-guided triple therapy can lead to both lower costs and better health outcomes than SOC therapy in the long run.
(© 2014 S. Karger AG, Basel.)
Databáze: MEDLINE