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Expert Rev Pharmacoecon Outcomes Res. 2012 Jun;12(3):335-43. doi: 10.1586/erp.12.10.

Impact of adverse events on costs and quality of life in protease inhibitor-based combination therapy for hepatitis C.

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Pharmerit North America LLC, Bethesda, MD, USA.


Protease inhibitor with pegylated interferon and ribavirin therapy (PI-PR) increases hepatitis C virus treatment efficacy versus standard of care pegylated interferon and ribavarin therapy [PR]. The adverse event (AE) impact of PI-PR remains under-reported. The authors estimated the AE impact on costs, treatment discontinuation and health-related quality of life (HRQoL) in PI-PR- and PR-treated patients through literature review and cost analysis. HRQoL and safety data were synthesized by instrument, AE and discontinuation rate. AE-related treatment costs were estimated with trial-based AE rates and literature-based protocols, resource utilization and standard costs. No PI-PR study reported HRQoL outcomes. Five PR studies reported that anemia, depression, fatigue and/or influenza-like symptoms negatively affected HRQoL. Decreased HRQoL predicted treatment discontinuation in two PR studies. PI-PR and PR had comparable AE-related treatment discontinuation rates (~12%). Weighted AE-related treatment costs were US$2042, $1835 and $1076 in boceprevir-based PI-PR, PR and telaprevir-based PI-PR, respectively. AE-related burden may increase with PI-PR. Future studies should incorporate AE-related economic and HRQoL outcomes to comprehensively assess costs/benefits.

[Indexed for MEDLINE]

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