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Pharmazie. 2018 Apr 2;73(4):223-247. doi: 10.1691/ph.2018.7982.
Efficacy of entecavir-based rescue therapy in lamivudine-resistant chronic hepatitis B patients in China: a retrospective study.
Li W, Wang L, Liu Y, Li Y, Yu S.
Abstract
Limited studies have investigated the antiviral efficacy of entecavir (ETV)-based rescue therapy in lamivudine (LAM)-resistant chronic hepatitis B (CHB) patients. We retrospectively analyzed the efficacy of entecavir (ETV) monotherapy versus ETV-tenofovir disoproxil fumarate (TDF) combination therapy in 220 LAM-resistant CHB patients. Among 220 patients, 114 patients were treated with ETV monotherapy and 106 were treated with ETV-TDF combination therapy for at least 24 months. There were no significant differences between the two groups in baseline characteristics. During the follow-up of 24 months, virologic response (VR) occurred in 146 (66.4%) patients (58 patients belonged to the ETV monotherapy group and 88 patients belonged to the ETV-TDF combination group). The VR rates were different between the ETV and ETV-TDF groups (32.5% vs. 57.5% at 6 months, 50.0% vs. 77.4% at 12 months; and 50.9% vs. 83.0% at 24 months, P<0.001). In addition, both groups showed no difference in terms of the biochemical and HBeAg response. The rates of viral breakthrough at 6, 12 and 24 months were significantly different between ETV and ETV-TDF groups (2.63%, 4.39% and 9.65% vs. 0.00%, 0.94% and 1.89% at 6, 12 and 24 months, respectively). The ETV-TDF group was superior to the ETV group in achieving a virologic response. Moreover, the ETV-TDF was lower than the ETV group in achieving the initial viral breakthrough and genotypic mutations. Therefore, ETV-TDF combination therapy might be a better regimen than ETV monotherapy in the subgroup of LAM-resistant Chinese patients with CHB.
PMID:
29609690
DOI:
10.1691/ph.2018.7982
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