Abstract
Background
Hepatitis B virus (HBV) infection is a significant global health problem and > 42–52% of patients are infected during perinatal period. Tenofovir alafenamide fumarate (TAF) and tenofovir disoproxil fumarate (TDF) have been widely recognized as the main compounds used for antiviral treatment of hepatitis B. The present study evaluated the efficacy and safety of TAF in reducing HBV vertical transmission.
Methods
A total of 72 pregnant women, who met the inclusion criteria, were randomly divided into the TDF (300 mg/day, n = 36) and TAF (25 mg/day, n = 36) groups. Clinical and laboratory data were analyzed and compared between the two groups.
Results
No significant differences in alanine aminotransferase, total bilirubin, blood creatinine and blood urea nitrogen levels were noted between the two groups after treatment. The serum HBV DNA viral load and hepatitis B e antigen (HBeAg) levels of the two groups were significantly decreased following treatment, whereas the difference between the two groups was not statistically significant. The levels of urine retinol-binding protein and β2-microglobulin had no significant change after TAF treatment (p > 0.05), but increased significantly after TDF treatment (p < 0.05). All drug concentrations were undetectable in umbilical cord blood (UCB) and breast milk samples of the TAF group, while the drug concentration of UCB and breast milk samples in the TDF group was 2.98 ± 1.44 and 19.16 ± 15.26 ng/ml, respectively. All infants were tested negative for serum hepatitis B surface antigen, HBV DNA, and HBeAg.
Conclusions
Both TAF and TDF effectively block the mother-to-child transmission of hepatitis B. TAF was superior to TDF with regard to renal safety and breastfeeding.
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Acknowledgements
We thank all the patients and their families who participated in this study, as well as all of our colleagues who participated in sample preparation, testing and analysis.
Funding
This work was funded by grants from the Sixth People’s Hospital of Shenyang and The National Science and Technology Major Special Project for New Drug Development (Project number: 2018ZX09201016).
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BJL, YG, QL, QM, YSW and YW contributed to the study design, patient recruitment and sample acquisition. ZZL, XL, DCL and MYD contributed to data analysis and drafted the manuscript. All the authors have read, revised and approved the final version of the manuscript.
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No potential conflicts of interest were disclosed by Baijun Li,Zhaozhe Liu,Xing Liu,Dongchun Liu,Mingyu Duan,Ye Gu,Qiong Liu,Qiang Ma,Yushi Wei,Yan Wang.
Ethical approval
The present study was approved by the Ethics Committee of the Sixth People’s Hospital of Shenyang (2019–05-002). All procedures were performed in accordance with the ethical standards of the Institutional Review Board of the Sixth People’s Hospital of Shenyang, and the principles outlined in the Helsinki Declaration of 1975 and its later amendments.
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Informed consent was obtained from all patients enrolled in this study.
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Li, B., Liu, Z., Liu, X. et al. Efficacy and safety of tenofovir disoproxil fumarate and tenofovir alafenamide fumarate in preventing HBV vertical transmission of high maternal viral load. Hepatol Int 15, 1103–1108 (2021). https://doi.org/10.1007/s12072-021-10235-1
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DOI: https://doi.org/10.1007/s12072-021-10235-1