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Entecavir add-on or switch-to pegylated interferon improves HBsAg clearance in HBe antigen negative chronic hepatitis B patients
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Authors Yan L, Zhu C, Li J, Chen L, Ding Y, Cao Z, Liu K, Lin L, Tang W, Xie Q, Xu Y, Bao S, Wang H
Received 29 May 2018
Accepted for publication 15 August 2018
Published 29 October 2018 Volume 2018:11 Pages 2001—2009
DOI https://doi.org/10.2147/IDR.S175707
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Amy Norman
Peer reviewer comments 5
Editor who approved publication: Professor Suresh Antony
Lei Yan,1,* Chuanwu Zhu,2,* Jing Li,3,* Liwen Chen,1 Yezhou Ding,1 Zhujun Cao,1 Kehui Liu,1,4 Lanyi Lin,1 Weiliang Tang,1 Qing Xie,1 Yumin Xu,1 Shisan Bao,5 Hui Wang1
1Department of Infectious Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; 2Department of Infectious Diseases, The Fifth People’s Hospital of Suzhou, Jiangsu 215007, China; 3Department of Infectious Diseases, Huai-An Fourth People’s Hospital, Jiangsu 223002, China; 4Department of Infectious Diseases, Rui Jin Hospital North, Shanghai Jiao Tong University School of Medicine, Shanghai 201801, China; 5Discipline of Pathology, School of Medical Sciences and Bosch Institute, Charles Perkin Centre, University of Sydney, Sydney, NSW, Australia
*These authors contributed equally to this work
Background and aims: Chronic hepatitis B (CHB) patients rarely achieve hepatitis B surface antigen (HBsAg) loss with nucleoside/nucleotide analog therapy.
Methods: In this retrospective study, it was evaluated that the rate of HBsAg loss in the HBe antigen negative (HBeAg−) patients (n=101) treated with entecavir (ETV) for ≥24 weeks followed by switching to (n=22) or adding on (n=26) pegylated interferon (PEG-IFN), and continuing ETV (n=53).
Results: HBsAg clearance rate at week 48 was 9% (2/22), 15% (4/26), and 0% (0/53) (P<0.05), in switch-to or add-on, or ETV monotherapy CHB patients, respectively. HBsAg reduction at week 48 was 1.182, 0.6614, or 0.056 log IU/mL, in switch-to, add-on, and ETV patients, respectively (P<0.001). The response rate (HBsAg reduction >1 log IU/mL at week 48) in the switch-to, add-on, and ETV monotherapy CHB patients was 60%, 40%, and 2%, respectively (P<0.001). In the switch-to and add-on patients, HBsAg reduction and clearance were associated with HBsAg titers at week 0 and HBsAg reduction at week 24. Furthermore, HBsAg reduction at week 24 was associated with the response rate at week 48 in the switch-to and add-on patients, showing that the area under the receiver operating characteristic curve was 0.904. Positive predictive value and negative predictive value for response rate was 70% and 100% with cut-off value 0.2 log IU/mL, respectively.
Conclusion: In summary, we demonstrated that PEG-IFN enhanced HBsAg loss in HBeAg− CHB patients. High HBsAg clearance was achieved in the patients with HBsAg titers at baseline <1,000 IU/mL and HBsAg reduction >0.2 log IU/mL.
Keywords: chronic hepatitis B, HBsAg, PEG-IFN, entecavir, switch-to, add-on |
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