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Annals of Hepatology

versão impressa ISSN 1665-2681

Resumo

OYAGUEZ, Itziar et al. Cost-Effectiveness and Clinical Impact of Antiviral Strategies of HBeAG-Positive and Negative Chronic Hepatitis B. Ann. Hepatol. [online]. 2017, vol.16, n.3, pp.358-365. ISSN 1665-2681.  http://dx.doi.org/10.5604/16652681.1235478.

Introduction.

Chronic hepatitis B (CHB) is associated with high burden and healthcare costs. Virologic response achieved with antivirals is associated with progression avoidance. This study aimed to estimate the efficiency and clinical impact of antiviral strategies in CHB patients.

Material and methods.

A Markov model estimated lifetime complications and direct costs in both, HBeAg-positive and HBeAg-negative cohorts. Strategy 1 (71% of treated population) and strategy 2 (100%), both based on pegylated interferon (peg-IFN) followed by oral tenofovir or entecavir, were compared to no treatment. Progression was based on HBV-DNA levels. Rescue therapy with oral antivirals was applied for peg-IFN failure. Disease costs (€, 2014) and utilities were obtained from literature.

Results.

Compared to natural history, strategy 1 increased QALY (3.98 in HBeAg-positive, 2.16 in -negative cohort). With strategy 2, survival was up to 5.60 (HBeAg-positive) and 3.05 QALY (in HBeAg-negative). The model predicted avoidance of 128 and 86 carcinomas in HBeAg-positive and -negative patients with strategy 1, and up to 181 and 121 in HBeAg-positive and -negative for strategy 2. Total cost increased up to €102,841 (strategy 1) and €105,408 (strategy 2) in HBeAg-positive, and €85,858 and €93,754 in HBeAg-negative. A€1,581/QALY gained ratio was estimated versus the natural history for both strategies. In conclusion, increasing antiviral coverage would be efficient, reducing complications.

Palavras-chave : Chronic hepatitis B; Clinical impact; Efficiency; Oral antivirals; Peginterferon.

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