Treatment Outcome and Renal Safety of 3-Year Tenofovir Disoproxil Fumarate Therapy in Chronic Hepatitis B Patients with Preserved Glomerular Filtration Rate

Background/Aims: To investigate the treatment efficacy and renal safety of long-term tenofovir disoproxil fumarate (TDF) therapy in chronic hepatitis B (CHB) patients with preserved renal function. Methods: The medical records of 919 CHB patients who were treated with TDF therapy were reviewed. All...

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Bibliographic Details
Published in:Gut and liver 2019-01, Vol.13 (1), p.93
Main Authors: In Suk Min, Chang Hun Lee, Ik Sang Shin, Na Eun Lee, Hong Seon Son, Seung Bum Kim, Seung Young Seo, Seong Hun Kim, Sang Wook Kim, Seung Ok Lee, Soo Teik Lee, In Hee Kim
Format: Article
Language:Korean
Subjects:
Antiviral agents
chronic
Hepatitis B
Renal insufficiency
Tenofovir
Treatment outcome
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Summary:Background/Aims: To investigate the treatment efficacy and renal safety of long-term tenofovir disoproxil fumarate (TDF) therapy in chronic hepatitis B (CHB) patients with preserved renal function. Methods: The medical records of 919 CHB patients who were treated with TDF therapy were reviewed. All patients had preserved renal function with an estimated glomerular filtration rate (eGFR) of at least 60 mL/min/1.73 m2. Results: A total of 426 patients (184 treatment-naive and 242 treatment-experienced) were included for analysis. A virologic response (VR) was defined as achieving an undetectable serum hepatitis B virus (HBV) DNA level, and the overall VR was 74.9%, 86.7%, and 89.4% at the 1, 2, and 3-year follow-ups, respectively. Achieving a VR was not influenced by previous treatment experience, TDF combination therapy, or antiviral resistance. In a multivariate analysis, being hepatitis B e antigen positive at baseline and having a serum HBV DNA level ≥2,000 IU/mL at 12 months were associated with lower VR rates during the long-term TDF therapy. The overall renal impairment was 2.9%, 1.8%, and 1.7% at the 1, 2, and 3-year follow-ups, respectively. With regard to renal safety, underlying diabetes mellitus (DM) and an initial eGFR of 60 to 89 mL/min/1.73 m 2 were significant independent predictors of renal impairment. Conclusions: TDF therapy appears to be an effective treatment option for CHB patients with a preserved GFR. However, patients with underlying DM and initial mild renal dysfunction (eGFR, 60 to 89 mL/min/1.73 m 2 ) have an increased risk of renal impairment. (Gut Liver 2019;13:93-103.)
ISSN:1976-2283