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Mak LY, Liu SH, Yap DYH, Seto WK, Wong DKH, Fung J, Chan TM, Lai CL, Yuen MF. In Vitro and In Vivo Renoprotective Effects of Telbivudine in Chronic Hepatitis B Patients Receiving Nucleotide Analogue. Dig Dis Sci 2019; 64:3630-3641. [PMID: 31280390 DOI: 10.1007/s10620-019-05717-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 07/02/2019] [Indexed: 01/10/2023]
Abstract
AIM Renal toxicity of adefovir disoproxil (ADV) and tenofovir disoproxil fumarate (TDF) is a significant concern in chronic hepatitis B (CHB) patients. Early observational clinical data suggested that telbivudine (LdT) might have renoprotective effects. METHODS In this prospective study, consecutive CHB patients on combined lamivudine (LAM) + ADV/TDF were switched to LdT + ADV/TDF at recruitment and were followed up for 24 months. Estimated glomerular filtration rate (eGFR) was calculated with the modification of diet in renal disease equation. The effects of LdT on cell viability and expression of kidney injury or apoptotic biomarkers were investigated in cultured renal tubular epithelial cell line HK-2. RESULTS Thirty-one patients (median age 55 years, 90.3% male) were recruited (54.8% TDF: 45.2% ADV). Serum HBV DNA was undetectable at all time points. Median eGFR was 70.2 (IQR 62.6-77.9) and 81.5 (IQR 63.6-99.1) mL/min/1.73 m2 at baseline and 24 months, respectively (p < 0.001). Downstaging of chronic kidney disease was observed in eight (25.8%) patients and was more common in ADV-treated compared to TDF-treated patients (7/8 vs. 1/17, p = 0.011; OR 16, 95% CI 1.643-155.766, p = 0.017). In vitro data showed that adding LdT to ADV or TDF was associated with improved cell viability and lower expression of injury and apoptotic biomarkers compared with ADV or TDF alone. Treatment was prematurely discontinued in four(12.9%) patients due to myalgia. CONCLUSIONS Clinical and in vitro data suggest that LdT has renoprotective effects in patients on long-term ADV/TDF treatment. LdT may be considered as an adjuvant therapy in this special group of patients with renal impairment (NCT03778567).
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Affiliation(s)
- Lung-Yi Mak
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong
| | - Sze-Hang Liu
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong
| | - Desmond Yat-Hin Yap
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong
| | - Wai-Kay Seto
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong.,State Key Laboratory for Liver Research, The University of Hong Kong, Pokfulam, Hong Kong
| | - Danny Ka-Ho Wong
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong.,State Key Laboratory for Liver Research, The University of Hong Kong, Pokfulam, Hong Kong
| | - James Fung
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong.,State Key Laboratory for Liver Research, The University of Hong Kong, Pokfulam, Hong Kong
| | - Tak-Mao Chan
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong
| | - Ching-Lung Lai
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong.,State Key Laboratory for Liver Research, The University of Hong Kong, Pokfulam, Hong Kong
| | - Man-Fung Yuen
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road 102, Pokfulam, Hong Kong. .,State Key Laboratory for Liver Research, The University of Hong Kong, Pokfulam, Hong Kong.
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