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Δευτέρα 27 Νοεμβρίου 2017

Hepatitis B reactivation and outcomes in persons treated with directly acting antiviral agents against hepatitis C virus: results from ERCHIVES

Summary

Background

Higher risk of hepatitis B reactivation (HBV-r) has been reported in patients with hepatitis C treated with newer directly acting antiviral agents (DAAs).

Aim

To determine the proportion of persons who develop HBV-r and its clinical consequences among DAA treated vs pegylated interferon/ribavirin (PEG/RBV) treated persons.

Methods

We calculated the proportion of persons who developed HBV viral reactivation (HBV-r; new detectable HBV DNA or increase of >1 log10); serum alanine aminotransferase flare (>5 times baseline); all-cause mortality and hepatic decompensation in persons treated with a newer DAA regimen or PEG/RBV. Kaplan-Meier curves were used to demonstrate survival and hepatic decompensation by treatment group and HBV-r.

Results

In 34 632 persons treated with DAA and 23 475 treated with PEG/RBV, HBV-r rate per 1000 person-years was 30.04 (10.41, 49.67) and 25.42 (95% CI 17.23, 33.62) respectively (P = .8). When stratified by SVR or by baseline HBsAg status, HBV-r was not different between groups. Kaplan-Meier survival curves comparing each regimen stratified by presence or absence of HBV-r did not demonstrate a significant difference in incidence of hepatic decompensation over time. For overall survival, there was no difference between PEG/RBV treated persons with or without HBV-r. For DAA treated persons, those with HBV-r had a shortened survival, though the numbers at risk were small.

Conclusions

HBV-r is relatively uncommon after DAA therapy and not higher than among those treated with a PEG/RBV regimen. The small numbers of persons treated with a DAA regimen who do develop HBV-r have a shortened survival compared to those without HBV-r.



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