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Dig Dis Sci. 2018 Aug 22. doi: 10.1007/s10620-018-5251-9. [Epub ahead of print]
Hepatitis B Surface Antigen Loss with Tenofovir Disoproxil Fumarate Plus Peginterferon Alfa-2a: Week 120 Analysis.
Ahn SH1, Marcellin P2, Ma X3, Caruntu FA4, Tak WY5, Elkhashab M6, Chuang WL7, Tabak F8, Mehta R9, Petersen J10, Guyer W1, Jump B11, Chan A11, Subramanian M11, Crans G11, Fung S12, Buti M13, Gaeta GB14, Hui AJ15,16, Papatheodoridis G17, Flisiak R18, Chan HLY19.
Author information
1
Department of Internal Medicine, Yonsei University College of Medicine, Brain Korea 21 Plus Project for Medical Science, Seoul, Republic of Korea.
2
Hôpital Beaujon, University Paris-Diderot, Clichy, France. [email protected].
3
Drexel University College of Medicine, Philadelphia, PA, USA.
4
National Institute for Infectious Diseases "Matei Bals", Bucharest, Romania.
5
Kyungpook National University Hospital, Daegu, South Korea.
6
Toronto Liver Centre, Toronto, Canada.
7
Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
8
Cerrahpasa Medical Faculty, University of Istanbul, Istanbul, Turkey.
9
Liver Clinic, Surat, India.
10
IFI Institute for Interdisciplinary Medicine, Asklepios Klinik St. George, University of Hamburg, Hamburg, Germany.
11
Gilead Sciences Inc, Foster City, CA, USA.
12
Toronto General Hospital, Toronto, Canada.
13
Hepatology Unit, Hospital Universitari Vall d'Hebron and CIBEREHD del Instituto Carlos III, Barcelona, Spain.
14
Infectious Diseases and Viral Hepatitis Unit, University of Campania "Luigi Vanvitelli", Naples, Italy.
15
The Chinese University of Hong Kong, Hong Kong, China.
16
Alice Ho Miu Ling Nethersole Hospital, Hong Kong, China.
17
Medical School of National and Kapodistrian University of Athens, General Hospital of Athens "Laiko", Athens, Greece.
18
Department of Infectious Diseases and Hepatology, Medical University of Bialystok, Białystok, Poland.
19
Department of Medicine and Therapeutics and Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China. [email protected].
Abstract
BACKGROUND AND AIMS:
Hepatitis B surface antigen (HBsAg) loss is the ideal clinical endpoint but is achieved rarely during oral antiviral treatment. A current unmet need in CHB management is achievement of HBsAg loss with a finite course of oral antiviral therapy, thereby allowing discontinuation of treatment. Significantly higher rates of HBsAg loss at 72 weeks post-treatment have been demonstrated when tenofovir disoproxil fumarate (TDF) was combined with pegylated interferon (PEG-IFN) for 48 weeks compared with either monotherapy. This analysis provides follow-up data at week 120.
METHODS:
In an open-label, active-controlled study, 740 patients with chronic hepatitis B were randomly assigned to receive TDF plus PEG-IFN for 48 weeks (group A), TDF plus PEG-IFN for 16 weeks followed by TDF for 32 weeks (group B), TDF for 120 weeks (group C), or PEG-IFN for 48 weeks (group D). Efficacy and safety at week 120 were assessed.
RESULTS:
Rates of HBsAg loss at week 120 were significantly higher in group A (10.4%) than in group B (3.5%), group C (0%), and group D (3.5%). Rates of HBsAg loss and HBsAg seroconversion in group A were significantly higher than rates in group C (P < 0.001 for both) or group D (HBsAg loss: P = 0.002; HBsAg seroconversion: P < 0.001).
CONCLUSIONS:
The results of this analysis confirm the results from earlier time points which demonstrate the increased rate of HBsAg loss in patients treated with a finite course of PEG-IFN plus TDF compared with the rates in patients receiving either monotherapy.
KEYWORDS:
Chronic hepatitis B; HBsAg loss; HBsAg seroconversion; Virological response
PMID:
30136045
DOI:
10.1007/s10620-018-5251-9
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