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Gut Liver. 2018 Oct 18. doi: 10.5009/gnl18183. [Epub ahead of print]
Treatment Outcome and Renal Safety of 3-Year Tenofovir Disoproxil Fumarate Therapy in Chronic Hepatitis B Patients with Preserved Glomerular Filtration Rate.
Min IS1, Lee CH1, Shin IS1, Lee NE1, Son HS1, Kim SB1, Seo SY1, Kim SH1, Kim SW1, Lee SO1, Lee ST1, Kim IH1.
Author information
1
Department of Internal Medicine, Chonbuk National University Medical School, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Jeonbuk, South Korea.
Abstract
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. The therapeutic efficacy and renal safety, in addition to their associated factors, were assessed using clinical and laboratory parameters.
Results:
A total of 426 patients (184 treatment-naïve 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-year, 2-year, and 3-year follow-ups, respectively. The treatment outcome was favorable in both the treatment-naïve and treatment-experienced groups, without significant differences between the two groups. 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-year, 2-year, 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 m2 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 m2) have an increased risk of renal impairment.
KEYWORDS:
Antiviral agents; Chronic hepatitis B; Renal insufficiency; Tenofovir; Treatment outcome
PMID:
30400723
DOI:
10.5009/gnl18183 |
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