Year 2020, Volume 6 , Issue 4, Pages 270 - 275 2020-07-04

Tenofovir plus entecavir combination therapy for chronic hepatitis B with nucleos(t)ide analogue failure

Bengü TATAR [1] , Şükran KÖSE [2]


Objectives: Currently, both entecavir (ETV) and tenofovir (TDF) are recommended first-line therapy for chronic hepatitis B treatment due to good tolerance, lower side-effect profile and high genetic barrier. However, mutations that may develop in the polymerase gene during treatment may result treatment failure. In this study, we aimed to evaluate the efficacy and virologic response of ETV plus TDF combination therapy in chronic hepatitis B patients with suboptimal response to nucleos(t)ide analogues (NAs) monotherapy.

Methods: A total of 813 patients who were followed-up with the diagnosis of chronic hepatitis B and who were treated with TDF or ETV monotherapy were screened. Patients who had a partial or non response to monotherapy during at least 12 months and who was the presence of serum HBV-DNA levels ≥ 2000 IU/mL at the time of initiation of the ETV plus TDF combination therapy were included.

Results: Ten (1.2%) patients (9 TDF, 1 ETV) were identified to have had partial response (50%) or breaktrough (40%) or virologic rebound (10%) to monotherapy. The median age was 36.8 years (range, 22-55 years), and 5/10 (50%) patients were male. Of 10 patients, nine of achieved undetectable HBV-DNA (< 15 IU/mL) levels (50% of in 6 months and 90% of in 18 months) with combination therapy. One patient showed no response.

Conclusions: Our results suggest that combination therapy is superior to the antiviral change in treatment failure with NAs. In addition, it is important to conduct HBV drug resistance analyzes to prevent false drug change in treatment. 

Combination therapy, chronic hepatitis B, virologic response, entecavir, tenofovir
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Primary Language en
Subjects Infectious Diseases, Microbiology
Journal Section Original Articles
Authors

Orcid: 0000-0003-3787-1734
Author: Bengü TATAR (Primary Author)
Institution: Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences, İzmir Tepecik Training and Research Hospital, İzmir, Turkey
Country: Turkey


Orcid: 0000-0002-4228-1213
Author: Şükran KÖSE
Institution: Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences, İzmir Tepecik Training and Research Hospital, İzmir, Turkey
Country: Turkey


Dates

Publication Date : July 4, 2020

EndNote %0 The European Research Journal Tenofovir plus entecavir combination therapy for chronic hepatitis B with nucleos(t)ide analogue failure %A Bengü Tatar , Şükran Köse %T Tenofovir plus entecavir combination therapy for chronic hepatitis B with nucleos(t)ide analogue failure %D 2020 %J The European Research Journal %P -2149-3189 %V 6 %N 4 %R doi: 10.18621/eurj.645852 %U 10.18621/eurj.645852