1. 2nd Center of Liver Cirrhosis Diagnosis and Treatment, 302 Hospital of PLA, Beijing 100039, China, 2. Department of Infectious Diseases, Specialized Hospital of Xinjiang Military Region, Urumqi 830000, China
Abstract:Objective To compare the clinical efficacy and safety of tenofovir disoproxil fumarate(TDF) monotherapy and entecavir(ETV) monotherapy in chronic hepatitis B patients with treatment failing to adefovir dipivoxil(ADV)therapy.Methods A total of 120 chronic hepatitis B patients with of ADV failure were investigated, and randomly divided into equally two groups. Sixty patients with chronic hepatitis B on rescue treatment with TDF(300 mg/d) monotherapy for 48 weeks served as group A were analyzed retrospectively.The serum HBV DNA levels,HBeAg,ALT and serum creatinine(Cr) were evaluated at weeks 0,12,24,48. In addition,data of 60 patients treated with ETV(0.5 mg/d) monotherapy for 48 weeks serving as group B were also collected.Results After 48 weeks follow-up,the virological response(VR) rate were 63.3%(38/60) in group A and 78.3%(47/60) in group B,respectively,and P value less than 0.05 when the two groups were compared. But the ALT normalization rate,seroeonversion rate (from HBeAg to HBeAb),the virologic breakthrough(VB) rate were 57.8% (26/45),13.6% (6/44),0 in group A,respectively.Meanwhile,in group B,they were 60.4%(29/48),14.9% (7/47),0,respectively with P value not showing significant difference between the two groups. Both groups showed comparable tolerance and not found elevated Cr at the end of treatment.Conclusions The therapy of ETV monotherapy is an effective and safe therapeutic strategy for chronic hepatitis B patients with a treatment failing to ADV therapy,and is superior to TDF monotherapy rescue strategy.
European, Association.For The Study of The Liver. EASL clinical practice guidelines: management of chronic hepatitis B virus infection[J]. J Hepatol,2012,57(1):167-185.
Hadziyannis S J,Tassopoulos N C,Heathcote E J,et al.Long-term therapy with adefovir dipivoxil for HBeAg-negative chronic hepatitisB for up to 5years[J].Gastroenterology, 2006, 131(9):1743-1751.
[5]
Marcellin P,Chang T L,Lim S G,et al.Long-term efficacy and safety of adefovir dipivoxil for the treatment of hepatitis B e antigen-positive chronic hepatitis B[J].Hepatology,2008,48(12): 750-758.
[6]
Minde Z,Yimin M,Ouangbi Y, et al.Five years of treatment with adefovir dipivoxil in Chinese patients with HBeAg-positive chronic hepatitis B[J].Liver Int, 2012,32(6):137-146.
[7]
WHO.Guidelines for the prevention,care and treatment of persons with chronic hepatitis B infection[EB/OL].[2015-03-12].http://www.who.int/hiv/pub/hepatitis/hepatitis-b-guidelines/en/.
[8]
Nguyen M H, Trinh H N, Do S T, et al. Complete viral suppression(CVS) rates at year 2 in adefovir-experienced chronic hepatitis B(CHB) patients who were switched to entecavir monotherapy: a multicenter study[J]. Hepatology,2011,54(4):S73.
[9]
Hu C Y, Liu Y M, Liu Y, et al. Pharmacokinetics and tolerability of tenofovir disoproxil fumarate 300 mg once daily: an open-label,single and multiple-dose study in healthy chinese subjects[J]. Clin Ther,2013,35(12):1884-1889.
[10]
Gordon S C, 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[J]. Hepatology, 2013,58(2):505-513.
[11]
Liaw Y F, Sheen I S, Lee C M, et al. Tenofovir disoproxil fumarate (TDF), emtricitabine/TDF, and entecavir in patients with decompensated chronic hepatitis B liver disease[J]. Hepatology, 2011,53(1):62-72.
[12]
Marcellin P, Gane E J, Tsai N, et al. Seven years of treatment with tenofovir DF for chronic hepatitis B virus infection is safe and well tolerated and associated with sustained virological, biochemical and serological responses with no detectable resistance [J]. Hepatology, 2013, 58(S): 649A.
[13]
Dupouey J, Gerolami R, Solas C, et al. Hepatitis B virus variant with the a194t substitution within reverse transcriptase before and under adefovir and tenofovir therapy[J]. Clin Res Hepatol Gastroenterol, 2012,36(2):e26-e28.
Keskin O, Ormeci A C, Baran B, et al. Efficacy of tenofovir in adefovir-experienced patients compared to treatment-na?ve patients with chronic hepatitis B[J]. Antivir Ther,2014,8(1):64-65.
[16]
Lee C I, Kwon S Y, Kim J H, et al. Efficacy and safety of tenofovir-based rescue therapy for chronic hepatitis B patients with previous nucleo(s/t)ide treatment failure[J].Gut Liver, 2014,8(1):64-69.