Long-term efficacy and safety of tenofovir disoproxil fumarate in Chinese patients with chronic hepatitis B: 5-year results
Tóm tắt
Long-term treatment with tenofovir disoproxil fumarate (TDF) has demonstrated suppression of viral replication outside of China. This study aims to assess efficacy, resistance and safety of TDF for up to 240 weeks in Chinese patients with chronic hepatitis B virus (HBV) infection. Patients (HBeAg-positive or HBeAg-negative) who were randomised to receive TDF 300 mg or adefovir dipivoxil (ADV) 10 mg once daily in the 48-week double-blind phase (N = 498) were eligible to enter the open-label TDF phase (TDF–TDF and ADV–TDF groups) for additional 192 weeks. Overall, 457/512 (89.3%) randomised patients completed 240 weeks of treatment. Virological suppression was achieved in 84.5% and 87.9% in HBeAg-positive patients and 89.6% and 89.5% in HBeAg-negative patients in TDF–TDF and ADV–TDF groups, respectively, at week 240. The majority of patients from both groups had normalized alanine transaminase levels. More patients had HBeAg loss (41.7% vs. 36.4%) and HBeAg seroconversion (32.0% vs. 28.3%) in TDF–TDF than in ADV–TDF group, respectively. Only one HBeAg-positive patient in TDF–TDF group had HBsAg loss at week 240. No evidence of resistance to TDF was observed. The incidence of adverse events was similar in both groups (TDF–TDF, 56.4% vs. ADV–TDF, 51.6%). One patient had serum creatinine elevation ≥ 0.5 mg/dL above baseline, and three patients had confirmed grade 3/4 phosphorus abnormalities (< 2 mg/dL). In Chinese patients with chronic HBV, long-term treatment with TDF showed sustained viral suppression without development of resistance up to 240 weeks. No new safety concerns were found with TDF in this patient population. Clinical Trial Registration ClinicalTrial.gov Identifier NCT01300234; GSK Clinical Study Register 114648.
Tài liệu tham khảo
World Health Organization. Hepatitis B Fact Sheet. Geneva: WHO; 2017. http://www.who.int/mediacentre/factsheets/fs204/en/#. Accessed 23 Aug 2018
Buti M, Tsai N, Petersen J, et al. Seven-year efficacy and safety of treatment with tenofovir disoproxil fumarate for chronic hepatitis B virus infection. Dig Dis Sci 2015;60:1457–1464
Hou JL, Gao ZL, Xie Q, et al. Tenofovir disoproxil fumarate vs adefovir dipivoxil in Chinese patients with chronic hepatitis B after 48 weeks: a randomized controlled trial. J Viral Hepat 2015;22:85–93
Yang HI, Yuen MF, Chan HL, et al. Risk estimation for hepatocellular carcinoma in chronic hepatitis B (REACH-B): development and validation of a predictive score. Lancet Oncol 2011;12:568–574
Marcellin P, Heathcote EJ, Buti M, et al. Tenofovir disoproxil fumarate versus adefovir dipivoxil for chronic hepatitis B. N Engl J Med 2008;359:2442–2455
Marcellin P, Gane E, Buti M et al. Regression of cirrhosis during treatment with tenofovir disoproxil fumarate for chronic hepatitis B: a 5-year open-label follow-up study. Lancet 2013;381:468─475
Marcellin P, Buti M, Krastev Z, et al. Kinetics of hepatitis B surface antigen loss in patients with HBeAg-positive chronic hepatitis B treated with tenofovir disoproxil fumarate. J Hepatol 2014;61:1228–1237
Liang X, Xie Q, Tan D, et al. Interpretation of liver stiffness measurement-based approach for the monitoring of hepatitis B patients with antiviral therapy: a 2-year prospective study. J Viral Hepat 2018;25:296–305
Kim MN, Kim SU, Kim BK, et al. Long-term changes of liver stiffness values assessed using transient elastography in patients with chronic hepatitis B receiving entecavir. Liver Int 2014;34:1216–1223
Hezode C, Castera L, Roudot-Thoraval F, et al. Liver stiffness diminishes with antiviral response in chronic hepatitis C. Aliment Pharmacol Ther 2011;34:656–663
Liu Y, Corsa AC, Buti M, et al. No detectable resistance to tenofovir disoproxil fumarate in HBeAg+ and HBeAg− patients with chronic hepatitis B after 8 years of treatment. J Viral Hepat 2017;24:68–74
Gordon SC, Krastev Z, Horban A, et al. Efficacy of tenofovir disoproxil fumarate at 240 weeks in patients with chronic hepatitis B with high baseline viral load. Hepatology 2013;58:505–513
Fung S, Gordon SC, Krastev Z, et al. Tenofovir disoproxil fumarate in Asian or Pacific Islander chronic hepatitis B patients with high viral load (>/= 9 log10 copies/ml). Liver Int 2015;35:422–428
Gish RG, Clark MD, Kane SD, Shaw RE, Mangahas MF, Baqai S. Similar risk of renal events among patients treated with tenofovir or entecavir for chronic hepatitis B. Clin Gastroenterol Hepatol 2012;10:941–946
Marcellin P, Zoulim F, Hezode C, et al. Effectiveness and safety of tenofovir disoproxil fumarate in chronic hepatitis B: a 3-year, prospective, real-world study in France. Dig Dis Sci 2016;61:3072–3083
Petersen J, Heyne R, Mauss S, et al. Effectiveness and safety of tenofovir disoproxil fumarate in chronic hepatitis B: a 3-year prospective field practice study in Germany. Dig Dis Sci 2016;61:3061–3071
Riveiro-Barciela M, Tabernero D, Calleja JL, et al. Effectiveness and safety of entecavir or tenofovir in a Spanish cohort of chronic hepatitis B patients: validation of the page-B score to predict hepatocellular carcinoma. Dig Dis Sci 2017;62:784–793
Agarwal K, Brunetto M, Seto WK, et al. 96 weeks treatment of tenofovir alafenamide vs. tenofovir disoproxil fumarate for hepatitis B virus infection. J Hepatol 2018;68:672–681
Buti M, Gane E, Seto WK, et al. Tenofovir alafenamide versus tenofovir disoproxil fumarate for the treatment of patients with HBeAg-negative chronic hepatitis B virus infection: a randomised, double-blind, phase 3, non-inferiority trial. Lancet Gastroenterol Hepatol 2016;1:196–206