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Affiliation(s)
- Patrick Marcellin
- Service d'hépatologie, INSERM CRI, Université Paris-Diderot, Clichy, France
| | - Emilie Estrabaud
- Service d'hépatologie, INSERM CRI, Université Paris-Diderot, Clichy, France
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52
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Zhu H, Wang C, Zhang Y, Wei S, Li X, Zhang Z. Prediction model for sustained hepatitis B e antigen seroconversion to peginterferon alfa-2a in chronic hepatitis B. J Gastroenterol Hepatol 2016; 31:1963-1970. [PMID: 27075693 DOI: 10.1111/jgh.13414] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 03/28/2016] [Accepted: 04/02/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM Clinically applicable models to predict hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) response to peginterferon (PEG-IFN) are scarce. This study aimed to develop simple scoring systems, based on multiple parameters, for predicting sustained HBeAg seroconversion to PEG-IFN. METHODS Eighty-five treatment-naïve patients with HBeAg-positive CHB underwent 52-week PEG-IFN treatment and 24-week follow-up. Logistic regression analysis assessed parameters at baseline and weeks 12, 24, and 52 to predict HBeAg seroconversion at week 24 off-treatment. The best three predictors at each time point were included in prediction models of PEG-IFN therapy efficacy. RESULTS The three most meaningful predictors were alanine aminotransferase (ALT) > 5 × ULN, HBeAg ≤ 500 S/CO, and antibody to hepatitis B core antigen (anti-HBc) > 10.7 S/CO at baseline; HBeAg ≤ 20 S/CO, anti-HBc > 11.7 S/CO, and HBeAg decline > 1 log10 S/CO at week 12; ALT > 2 × ULN, HBeAg ≤ 15 S/CO, and anti-HBc > 10.4 S/CO at week 24; HBeAg ≤ 5 S/CO, anti-HBc > 11.1 S/CO, and hepatitis B virus DNA decline > 2 log10 copies/mL at week 52. Parameters meeting optimal cutoff thresholds were scored 1 or otherwise scored 0. For total scores of 0 versus 3 at baseline and weeks 12, 24, and 52, response rates were 6.3%, 12.5%, 0%, and 0% versus 90.0%, 83.3%, 76.9%, and 86.4%, respectively. CONCLUSIONS We successfully established prediction models for PEG-IFN response in HBeAg-positive CHB.
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Affiliation(s)
- Huilan Zhu
- Department of Infectious Diseases, the First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Changtai Wang
- Department of Infectious Diseases, the First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Yafei Zhang
- Department of Infectious Diseases, the First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Shaofeng Wei
- Department of Infectious Diseases, the First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Xu Li
- Department of Infectious Diseases, the First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Zhenhua Zhang
- Department of Infectious Diseases, the First Affiliated Hospital, Anhui Medical University, Hefei, China
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53
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Martinot-Peignoux M, Lapalus M, Maylin S, Boyer N, Castelnau C, Giuily N, Pouteau M, Moucari R, Asselah T, Marcellin P. Baseline HBsAg and HBcrAg titres allow peginterferon-based 'precision medicine' in HBeAg-negative chronic hepatitis B patients. J Viral Hepat 2016; 23:905-911. [PMID: 27375231 DOI: 10.1111/jvh.12565] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 06/07/2016] [Indexed: 12/13/2022]
Abstract
Quantitative hepatitis B core-related antigen (qHBcrAg) has been proposed as an additional marker to quantitative HBsAg (qHBsAg), for management of chronic hepatitis B. Evaluate baseline combination of qHBsAg and qHBcrAg for identification of patients that could benefit from pegylated interferon-alpha-2a (PegIFN)-based therapy. Sixty-two HBeAg-negative patients treated with PegIFN or PegIFN plus tenofovir disoproxil fumarate (PegIFN+TDF). HBsAg and HBcrAg titres were evaluated at baseline. Thirty patients received PegIFN and 32 PegIFN+TDF. SR was 10 of 30 and 17 of 32 in PegIFN and PegIFN+TDF patients, respectively. Cut-offs determined by maximized Youden's index for identifying patients likely to respond to therapy were as follows: 3.141 log10 IU/mL and 3.450 log10 U/mL for HBsAg and HBcrAg, respectively. At the end of 3 years post-treatment follow-up, HBsAg loss was observed in 7 of 30 and 6 of 32 in PegIFN and PegIFN+TDF patients, respectively. The AUC was estimated to be 0.716 (95% CI [0.578, 0.855]) for HBsAg and 0.668 (95% CI [0.524, 0.811]) for HBcrAg (P=.5541). PPVs for AUCs(95%CI) were 0.762(0.590-0.947), 0.714(0.533-1.000) and 0.800(0.611-1.000), and NPVs for AUCs(95%CI) were 0.756(0.660-0.899), 0.718(0.630-0.857) and 0.765(0.675-0.889) for qHBsAg, qHBcrAg and the combination of both markers, respectively. Baseline qHBsAg 3.141 log10 IU/mL and qHBcrAg 3.450 log10 U/mL thresholds used separately or in combination allow prediction of response, prior to PegIFN-based therapy, with a PPV of 80.3% and NPV of 76.5%. Baseline qHBsAg is predictive of HBsAg loss. Both markers could be used, separately or in combination, for PegIFN-based 'precision therapy'. Our results emphasize that the combination of PegIFN alpha-2a plus TDF with 53% of SR might be an alternative to finite therapy.
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Affiliation(s)
- M Martinot-Peignoux
- INSERM, UMR1149, Centre de Recherche sur l'Inflammation, Paris, France. .,Université Denis Diderot Paris 7, Paris, France.
| | - M Lapalus
- INSERM, UMR1149, Centre de Recherche sur l'Inflammation, Paris, France.,Université Denis Diderot Paris 7, Paris, France
| | - S Maylin
- Service de Microbiolgie Pole B2P, Hôpital saint Louis, Paris, France
| | - N Boyer
- Service d'Hépatologie, Hôpital Beaujon AP-HP, Clichy Cedex, France
| | - C Castelnau
- Service d'Hépatologie, Hôpital Beaujon AP-HP, Clichy Cedex, France
| | - N Giuily
- Service d'Hépatologie, Hôpital Beaujon AP-HP, Clichy Cedex, France
| | - M Pouteau
- Service d'Hépatologie, Hôpital Beaujon AP-HP, Clichy Cedex, France
| | - R Moucari
- INSERM, UMR1149, Centre de Recherche sur l'Inflammation, Paris, France.,Université Denis Diderot Paris 7, Paris, France
| | - T Asselah
- INSERM, UMR1149, Centre de Recherche sur l'Inflammation, Paris, France.,Université Denis Diderot Paris 7, Paris, France.,Service de Microbiolgie Pole B2P, Hôpital saint Louis, Paris, France.,Service d'Hépatologie, Hôpital Beaujon AP-HP, Clichy Cedex, France
| | - P Marcellin
- INSERM, UMR1149, Centre de Recherche sur l'Inflammation, Paris, France.,Université Denis Diderot Paris 7, Paris, France.,Service de Microbiolgie Pole B2P, Hôpital saint Louis, Paris, France.,Service d'Hépatologie, Hôpital Beaujon AP-HP, Clichy Cedex, France
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54
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Yang S, Xing H, Wang Y, Hou J, Luo D, Xie Q, Ning Q, Ren H, Ding H, Sheng J, Wei L, Chen S, Fan X, Huang W, Pan C, Gao Z, Zhang J, Zhou B, Chen G, Wan M, Tang H, Wang G, Yang Y, Xu D, Dong P, Wang Q, Wang J, Bognar FA, Xu D, Cheng J. HBsAg and HBeAg in the prediction of a clinical response to peginterferon α-2b therapy in Chinese HBeAg-positive patients. Virol J 2016; 13:180. [PMID: 27793166 PMCID: PMC5084370 DOI: 10.1186/s12985-016-0640-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 10/19/2016] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND This study aimed to evaluate the predictive values of hepatitis B e antigen (HBeAg) and hepatitis B surface antigen (HBsAg) levels in 171 Chinese patients with chronic hepatitis B who received a 48-week course of pegylated interferon alfa-2b therapy at 1.5 mcg/kg. METHODS HBsAg, HBeAg, and hepatitis B virus (HBV) DNA levels were measured at baseline and weeks 12, 24, 48, and 72. Clinical responses were defined as a combined response (CR, HBeAg seroconversion [sustained response, SR] combined with HBV DNA level <2,000 IU/mL at week 72). The positive predictive value and negative predictive value were calculated for HBsAg alone and/or combined with HBeAg and HBV DNA at weeks 12 and 24. RESULTS Of 171 patients included, 58 (33.9 %) achieved a SR. Of patients who achieved a SR, 33 (56.9 %) achieved a CR. Totally 19.3 % (33/171) patients achieved CR and 80.7 % (138/171) patients did not. Patients with HBsAg <1500 IU/mL at week 12 had a 47.4 % chance of achieving an off-treatment SR and patients with a HBsAg decrease >1.5 logIU/mL at week 12 had a 54.5 % chance. Patients with HBsAg >20,000 IU/mL at weeks 12 and 24 had a 93.8 and 100.0 % chance, respectively, of not achieving a CR. An HBsAg level or changes at weeks 12 and 24, combined with HBeAg or HBV DNA, increased the chance for a SR and CR. CONCLUSIONS On-treatment HBsAg quantification, alone or in combination with HBeAg or HBV DNA, predicted off-treatment SR and CR after 48 weeks of PEG-IFNα-2b therapy, and thus, may guide clinicians in making a therapeutic decision to continue or terminate the therapy.
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Affiliation(s)
- Song Yang
- Center of Hepatology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015 China
| | - Huichun Xing
- Center of Hepatology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015 China
| | - Yuming Wang
- Southwest Hospital Affiliated Third Military Medical University, Shapingba, Chongqing 400038 China
| | - Jinlin Hou
- Guangzhou Nanfang Hospital, Guangzhou, 510515 China
| | - Duande Luo
- Xiehe Hospital Affiliated Tongji Medical College of Huazhong University of Science & Technology, Wuhan, 430022 China
| | - Qing Xie
- Shanghai Ruijin Hospital affilated Shanghai Jiaotong University School of Medicine, Shanghai, 200025 China
| | - Qin Ning
- Tongji Hospital Affiliated Tongji Medical College of Huazhong University of Science & Technology, Wuhan, 430030 China
| | - Hong Ren
- The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010 China
| | - Huiguo Ding
- Beijing You’an Hospital, Capital Medical University, Fengtai District, Beijing, 100069 China
| | - Jifang Sheng
- The First Affiliated Hospital of Zhejiang University Medical College, Hangzhou, 310003 China
| | - Lai Wei
- Peking University People’s Hospital, Beijing, 100044 China
| | - Shijun Chen
- Jinan Infectious Disease Hospital, Jinan, 250021 China
| | - Xiaoling Fan
- Center of Hepatology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015 China
| | - Wenxiang Huang
- No. 1 Hospital of Chongqing Medical University, Chongqing, 400016 China
| | - Chen Pan
- Fuzhou Infectious Disease Hospital, Gulou District, Fuzhou, 350025 China
| | - Zhiliang Gao
- The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630 China
| | - Jiming Zhang
- Huashan Hospital, Fudan University, Shanghai, 200040 China
| | - Boping Zhou
- Shenzhen Donghu Hospital, Shenzhen, 518020 China
| | | | - Mobin Wan
- Shanghai Changhai Hospital, Shanghai, 200433 China
| | - Hong Tang
- West China Hospital, Sichuan University, Chengdu, 610041 China
| | - Guiqiang Wang
- Peking University First Hospital, Beijing, 100034 China
| | - Yuxiu Yang
- Henan Provincial People’s Hospital, Zhengzhou, 450003 China
| | | | - Peiling Dong
- Beijing You’an Hospital, Capital Medical University, Fengtai District, Beijing, 100069 China
| | - Qixin Wang
- Merck, Sharp & Dohme, Shanghai, 200040 China
| | - Jue Wang
- Merck, Sharp & Dohme, Shanghai, 200040 China
| | | | - Daozhen Xu
- Center of Hepatology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015 China
| | - Jun Cheng
- Center of Hepatology, Beijing Ditan Hospital, Capital Medical University, No. 8 Jingshun East Street, Chaoyang District, Beijing, 100015 China
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Abstract
PURPOSE OF REVIEW Hepatitis B is a major cause of hepatocellular carcinoma and liver cirrhosis. Interferon (IFN)-based therapies provide the highest likelihood of achieving off-treatment virological and serological control although their use is often avoided because of the side-effect profile. We review recent developments regarding the use of IFN in the treatment of chronic hepatitis B, including proposed strategies to enhance efficacy while limiting treatment exposure for patients who are unlikely to achieve acceptable treatment endpoints. RECENT FINDINGS The utility of host genetics (human leukocyte antigen associations and interleukin 28B) is yet to be defined. In hepatitis B e antigen (HBeAg)-positive disease, add-on IFN therapy to patients on entecavir may allow curtailment of nucleos(t)ide analogue treatment. In HBeAg-negative disease, an on-treatment stopping rule that measures decline of hepatitis B surface antigen and hepatitis B virus DNA at 12 and 24 weeks may identify up to two-thirds of poor responders. Prolonging IFN therapy to 96 weeks in patients with HBeAg-negative disease may improve virological and serological response rates. The combination of telbivudine and IFN therapy is contraindicated because of high rates of peripheral neuropathy. SUMMARY These findings need to be confirmed in larger trials before they can be instituted into routine clinical practice.
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56
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Okanoue T, Shima T, Hasebe C, Karino Y, Imazeki F, Kumada T, Minami M, Imai Y, Yoshihara H, Mita E, Morikawa T, Nishiguchi S, Kawakami Y, Nomura H, Sakisaka S, Kurosaki M, Yatsuhashi H, Oketani M, Kohno H, Masumoto A, Ikeda K, Kumada H. Long-term follow up of peginterferon-α-2a treatment of hepatitis B e-antigen (HBeAg) positive and HBeAg negative chronic hepatitis B patients in phase II and III studies. Hepatol Res 2016; 46:992-1001. [PMID: 26670363 DOI: 10.1111/hepr.12638] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/05/2015] [Accepted: 12/07/2015] [Indexed: 02/08/2023]
Abstract
AIM We analyzed the 5-year post-treatment response to peginterferon α-2a (PEG IFN-α-2a) in hepatitis B e-antigen (HBeAg) positive and negative chronic hepatitis B patients. METHODS One hundred and thirty-seven chronic hepatitis B (CHB) patients receiving 90 μg or 180 μg of PEG IFN-α-2a for 24 or 48 weeks in phase II or III studies were enrolled in the study, including 100 HBeAg positive patients and 37 HBeAg negative patients; 121 patients (88.4%) had genotype C. RESULTS Of the 137 patients, 94 received additional antiviral therapy because of viral reactivation and 43 did not receive any additional antiviral treatment during follow up. Five years upon PEG IFN-α-2a treatment, 32 patients (23.4%) who did not receive any additional antiviral agent after PEG IFN-α-2a therapy achieved a good response (normal serum alanine aminotransferase, low-level hepatitis B virus [HBV] DNA, and HBeAg negativity). Female sex and low HBV DNA levels by the end of treatment were independently associated with favorable 5-year post-treatment responses. Forty-eight-week administration of PEG IFN-α-2a showed a better response (26.4%) than 24-week administration (18.0%). Six patients (4.3%), four males and two females, cleared hepatitis B surface antigen (HBsAg) during the 5-year follow-up period. CONCLUSION The 48-week administration of PEG IFN-α-2a achieved better biochemical and virological responses than the 24-week administration, particularly in younger females. The 5-year post-treatment response rate was 23.4%; however, more than two-thirds of the patients received additional antiviral therapy because of viral reactivation after PEG IFN-α-2a treatment. HBsAg clearance was noted in six patients (4.3%). PEG IFN-α-2a is effective in young female patients.
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Affiliation(s)
- Takeshi Okanoue
- Center of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Suita, Japan
| | - Toshihide Shima
- Center of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Suita, Japan
| | - Chitomi Hasebe
- Department of Gastroenterology, Asahikawa Red Cross Hospital, Asahikawa, Japan
| | - Yoshiyasu Karino
- Department of Hepatology, Sapporo Kohseiren Hospital, Sapporo, Japan
| | - Fumio Imazeki
- Department of Gastroenterology and Nephrology, Chiba University, Chiba, Japan
| | - Takashi Kumada
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Masahito Minami
- Department of Gastroenterology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yasuharu Imai
- Department of Gastroenterology, Ikeda Municipal Hospital, Ikeda, Japan
| | | | - Eiji Mita
- Department of Gastroenterology, National Hospital Organization Osaka Medical Center, Osaka, Japan
| | | | - Shuhei Nishiguchi
- Division of Hepatobiliary and Pancreatic Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yoshiiku Kawakami
- Department of Gastroenterology and Metabolism, Hiroshima University, Hiroshima, Japan
| | | | - Shotaro Sakisaka
- Department of Gastroenterolgy, Fukuoka University, Fukuoka, Japan
| | - Masayuki Kurosaki
- Department of Gastroenterology, Musashino Red Cross Hospital, Musashino, Japan
| | - Hiroshi Yatsuhashi
- Clinical Research Center, National Hospital Organization Nagasaki Medical Center, Nagasaki, Japan
| | - Makoto Oketani
- Department of Gastroenterology and Life Style-Related Disease, Kagoshima University, Kagoshima, Japan
| | - Hiroshi Kohno
- Department of Gastroenterology, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | | | - Kenji Ikeda
- Department of Hepatology, Toranomon Hospital, Tokyo, Japan
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57
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Brouwer WP, Sonneveld MJ, Xie Q, Guo S, Zhang N, Zeuzem S, Tabak F, Zhang Q, Simon K, Akarca US, Streinu-Cercel A, Hansen BE, Janssen HLA. Peginterferon add-on results in more HBsAg decline compared to monotherapy in HBeAg-positive chronic hepatitis B patients. J Viral Hepat 2016; 23:419-26. [PMID: 26403919 DOI: 10.1111/jvh.12468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 08/25/2015] [Indexed: 01/04/2023]
Abstract
It is unknown whether peginterferon (PEG-IFN) add-on to entecavir (ETV) leads to more HBsAg decline compared to PEG-IFN monotherapy or combination therapy, and whether ETV therapy may prevent HBsAg increase after PEG-IFN cessation. We performed a post hoc analysis of 396 HBeAg-positive patients treated for 72 weeks with ETV + 24 weeks PEG-IFN add-on from week 24 to 48 (add-on, n = 85), 72 weeks with ETV monotherapy (n = 90), 52 weeks with PEG-IFN monotherapy (n = 111) and 52 weeks PEG-IFN + lamivudine (combination, n = 110) within 2 randomized trials. HBsAg decline was assessed at the end of PEG-IFN (EOP) and 6 months after PEG-IFN (EOF) discontinuation. Differences in baseline characteristics were accounted for using inversed probability of treatment weights. At EOP, a HBsAg reduction of ≥1log10 IU/mL was more frequently achieved for patients in the add-on or combination therapy arms (both 36%), compared to PEG-IFN mono (20%) or ETV (8%) (add-on vs PEG-IFN mono P = 0.050). At EOF, the HBsAg reduction ≥1log10 IU/mL was only sustained in patients treated with ETV consolidation (add-on vs combination and PEG-IFN mono: 40% vs 23% and 18%, P = 0.029 and P = 0.003, respectively). For add-on, combination, PEG-IFN mono and ETV, the mean HBsAg-level change at EOF was -0.84, -0.81, -0.68 and -0.33 log10 IU/mL, respectively (P > 0.05 for PEG-IFN arms). HBeAg loss at EOF was 36%, 31%, 33% and 20%, respectively (P > 0.05). PEG-IFN add-on for 24 weeks results in more on-treatment HBsAg decline than does 52 weeks of PEG-IFN monotherapy. ETV therapy may maintain the HBsAg reduction achieved with PEG-IFN.
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Affiliation(s)
- W P Brouwer
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - M J Sonneveld
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Q Xie
- Infectious Diseases, Ruijin Hospital, Jiaotong University, Shanghai, China
| | - S Guo
- Infectious Diseases, Ruijin Hospital, Jiaotong University, Shanghai, China
| | - N Zhang
- Gastroenterology and Hepatology, Zhong Shan Hospital, Fu Dan University, Shanghai, China
| | - S Zeuzem
- Medizinische Klinik 1, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
| | - F Tabak
- Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Q Zhang
- Gastroenterology and Hepatology, Shanghai Public Health Center, Fu Dan University, Shanghai, China
| | - K Simon
- Division of Infectious Diseases and Hepatology, Wroclaw Medical University, Wroclaw, Poland
| | - U S Akarca
- Ege Üniversitesi Tip Fakultesi, Bornova, Turkey
| | - A Streinu-Cercel
- Department of Gastroenterology, Fundeni Cinical Institute, Bucharest, Romania
| | - B E Hansen
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,Department of Public Health, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - H L A Janssen
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,Toronto Center for Liver Disease, Toronto Western and General Hospital, University Health Network, Toronto, ON, Canada
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58
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Liu F, Wang XW, Chen L, Hu P, Ren H, Hu HD. Systematic review with meta-analysis: development of hepatocellular carcinoma in chronic hepatitis B patients with hepatitis B surface antigen seroclearance. Aliment Pharmacol Ther 2016; 43:1253-61. [PMID: 27117732 DOI: 10.1111/apt.13634] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 05/09/2015] [Accepted: 03/29/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND The seroclearance of hepatitis B surface antigen (HBsAg) in patients with chronic hepatitis B (CHB) is considered to be associated with favourable clinical outcomes. However, previous studies with inconsistent findings reported that hepatocellular carcinoma (HCC) could still develop in those patients. AIM To establish the proportion of HCC occurrence in CHB patients after HBsAg seroclearance, a systematic review and meta-analysis was performed. METHODS Databases of Medline, Web of Science and Embase were searched from inception to July 2015. The proportion of patients who developed HCC after HBsAg seroclearance was pooled by a random-effects model. RESULTS Twenty-eight studies were finally included, involving 34 952 patients with HBsAg seroclearance. The overall pooled proportion suggested that 2.29% (95% CI: 1.19-4.37%) CHB patients would develop HCC despite HBsAg seroclearance. In HBsAg seroclearance patients without cirrhosis and HCV co-infection, the pooled proportion of HCC development was 1.55% (95% CI: 0.92-2.61%). Moreover, patients with cirrhosis or age greater than 50 years at the time of HBsAg seroclearance were at significantly higher risk for HCC development. Nonetheless, the seroclearance of HBsAg was significantly associated with a reduced risk for HCC compared with persistently positive HBsAg (RR = 0.34, 95% CI: 0.20-0.56, P < 0.001). CONCLUSIONS Despite that HBsAg seroclearance can significantly reduce the risk for HCC, HCC can still develop in a proportion of CHB patient after HBsAg seroclearance. Closer attention should be paid to those patients with established cirrhosis or older age than 50 years at the time of HBsAg seroclearance.
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Affiliation(s)
- F Liu
- Key Laboratory of Molecular Biology for Infectious Diseases, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - X-W Wang
- Key Laboratory of Molecular Biology for Infectious Diseases, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - L Chen
- Key Laboratory of Molecular Biology for Infectious Diseases, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - P Hu
- Key Laboratory of Molecular Biology for Infectious Diseases, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - H Ren
- Key Laboratory of Molecular Biology for Infectious Diseases, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - H-D Hu
- Key Laboratory of Molecular Biology for Infectious Diseases, Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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59
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Li MH, Xie Y, Zhang L, Lu Y, Shen G, Wu SL, Chang M, Mu CQ, Hu LP, Hua WH, Song SJ, Zhang SF, Cheng J, Xu DZ. Hepatitis B surface antigen clearance in inactive hepatitis B surface antigen carriers treated with peginterferon alfa-2a. World J Hepatol 2016; 8:637-643. [PMID: 27239256 PMCID: PMC4876290 DOI: 10.4254/wjh.v8.i15.637] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/06/2016] [Accepted: 05/09/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To examine the association between interferon (IFN) therapy and loss of hepatitis B surface antigen (HBsAg) in inactive HBsAg carriers.
METHODS: This was a retrospective cohort study in inactive HBsAg carriers, who were treatment-naive, with a serum HBsAg level < 100 IU/mL and an undetectable hepatitis B virus (HBV) DNA level (< 100 IU/mL). All the 20 treated patients received subcutaneous PEG-IFN alfa-2a 180 μg/wk for 72 wk and were then followed for 24 wk. There were 40 untreated controls matched with 96 wk of observation. Serum HBsAg, HBV DNA, and alanine aminotransferases were monitored every 3 mo in the treatment group and every 3-6 mo in the control group.
RESULTS: Thirteen (65.0%) of 20 treated patients achieved HBsAg loss, 12 of whom achieved HBsAg seroconversion. Mean HBsAg level in treated patients decreased to 6.69 ± 13.04 IU/mL after 24 wk of treatment from a baseline level of 26.22 ± 33.00 IU/mL. Serum HBV DNA level remained undetectable (< 100 IU/mL) in all treated patients during the study. HBsAg level of the control group decreased from 25.72 ± 25.58 IU/mL at baseline to 17.11 ± 21.62 IU/mL at week 96 (P = 0.108). In the control group, no patient experienced HBsAg loss/seroconversion, and two (5.0%) developed HBV reactivation.
CONCLUSION: IFN treatment results in HBsAg loss and seroconversion in a considerable proportion of inactive HBsAg carriers with low HBsAg concentrations.
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Wang Z, Sun L, Wu Y, Xia Q. Extended duration versus standard duration of peginterferon alfa-2a in treatment of chronic hepatitis B: A systematic review and meta-analysis. Clin Res Hepatol Gastroenterol 2016; 40:195-202. [PMID: 26299874 DOI: 10.1016/j.clinre.2015.06.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 06/08/2015] [Indexed: 02/06/2023]
Abstract
In the last decade, PEG-IFNa-2a has been widely used in the treatment of chronic hepatitis B (CHB). The current standard duration is 48 weeks; however, several studies based on small sample sizes have indicated that treatment extended beyond 48 weeks improved clinical outcomes than standard 48 weeks of therapy. Therefore, we performed a meta-analysis to compare the efficacy and safety of extended duration versus standard duration treatment with PEG-IFNa-2a monotherapy for patients with CHB. Four studies comprising of 350 patients were included in our study. Our analysis showed that extended treatment resulted in a higher HBsAg clearance rate compared with the standard treatment at the end of treatment, 24 and 48 weeks post-treatment [odds ratio (OR)=2.45, 95% confidence intervals (CI) (1.17-5.11), P=0.02; OR=3.17, 95% CI (1.62-6.21), P<0.01; OR=5.02, 95% CI (1.63-15.45), P<0.01, respectively]. Higher HBeAg seroconversion rates were also obtained in the extended treatment group than the standard treatment group at the end of treatment and 48 weeks post-treatment [OR=2.09, 95% CI (1.10-3.98), P=0.02, and OR=2.67, 95% CI (1.39-5.13), P<0.01, respectively]. In addition, extended treatment was superior to standard treatment in HBV-DNA inhibition rate at 48 weeks post-treatment [OR=3.15, 95% CI (1.51-6.57), P<0.01]. Therefore, extended treatment with PEG-IFNa-2a beyond 48 weeks may be a promising strategy to achieve higher rates of sustained HBV-DNA inhibition, HBeAg seroconversion and HBsAg clearance off-therapy for patients with CHB.
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Affiliation(s)
- Zhengyan Wang
- Department of Integrated Traditional and Western Medicine, West China Hospital, Sichuan University, Wainan Guoxue Alley No. 37, 610041 Chengdu, PR China
| | - Ling Sun
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, PR China
| | - Yuwan Wu
- Department of Integrated Traditional and Western Medicine, West China Hospital, Sichuan University, Wainan Guoxue Alley No. 37, 610041 Chengdu, PR China
| | - Qing Xia
- Department of Integrated Traditional and Western Medicine, West China Hospital, Sichuan University, Wainan Guoxue Alley No. 37, 610041 Chengdu, PR China.
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Han M, Jiang J, Hou J, Tan D, Sun Y, Zhao M, Ning Q. Sustained immune control in HBeAg-positive patients who switched from entecavir therapy to pegylated interferon-α2a: 1 year follow-up of the OSST study. Antivir Ther 2016; 21:337-44. [PMID: 26734984 DOI: 10.3851/imp3019] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND In the OSST study, hepatitis B e antigen (HBeAg)-positive chronic hepatitis B patients who switched from long-term entecavir (ETV) therapy to pegylated interferon-α2a (PEG-IFN-α2a; 40 kDa) achieved higher rates of HBeAg seroconversion and hepatitis B surface antigen (HBsAg) loss than those who continued ETV. Herein we report the sustainability of serological responses during 1 year of untreated follow-up in patients who switched from ETV to PEG-IFN-α2a therapy. METHODS A total of 62 patients who completed 48 weeks of PEG-IFN-α2a therapy were followed-up for 48 weeks off treatment. Primary end points were HBeAg seroconversion and maintenance of HBeAg seroconversion at 48 weeks post-treatment. Secondary end points included HBsAg loss, HBV DNA <1,000 copies/ml and alanine aminotransferase normalization (<1× upper limit of normal). RESULTS The HBeAg seroconversion rate increased from 17.7% (11/62) at the end of treatment to 38.7% (24/62) 1 year post-treatment. Sustained HBeAg seroconversion was achieved by 63.6% (7/11) patients with end-of-treatment responses, while late HBeAg seroconversion was achieved by 33.3% (17/51) of patients who did not have end-of-treatment responses. Sustained HBsAg loss was documented in 6 of 7 patients, and sustained HBV DNA suppression was achieved in 60% (27/45) of patients with an end-of-treatment response. CONCLUSIONS In patients who do not achieve HBeAg seroconversion during long-term ETV therapy, switching to finite treatment with PEG-IFN-α2a produces HBeAg seroconversion in a substantial proportion of patients at end of treatment and during 1 year of follow-up. Moreover, HBeAg seroconversion and HBsAg loss are sustained in most patients during 1 year of untreated follow-up.
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Affiliation(s)
- Meifang Han
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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62
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Martinot-Peignoux M, Marcellin P. Virological and serological tools to optimize the management of patients with chronic hepatitis B. Liver Int 2016; 36 Suppl 1:78-84. [PMID: 26725902 DOI: 10.1111/liv.12998] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 10/24/2015] [Indexed: 02/06/2023]
Abstract
Molecular biology techniques are routinely used to diagnose and monitor treatment in patients with chronic hepatitis B (CHB). These tools can detect and quantify viral genomes and analyse their sequences to determine genotype. The increasing use of these tools to monitor patients has greatly improved the management of CHB infection by maximizing the potential for individualized treatment. HBV genotyping has become increasingly important and provides additional information to predict a response to therapy. More sensitive methods to determine HBV DNA levels are now available and the units of measurements have been standardized. HBsAg levels in serum have been shown to reflect active intrahepatic covalently closed circular DNA (cccDNA) and to have additional value in treatment decisions, especially as an on-treatment marker.
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Affiliation(s)
- Michelle Martinot-Peignoux
- INSERM, UMR1149, Centre de Recherche sur l'Inflammation, Paris, France.,Université Denis Diderot Paris 7, Paris, France
| | - Patrick Marcellin
- INSERM, UMR1149, Centre de Recherche sur l'Inflammation, Paris, France.,Université Denis Diderot Paris 7, Paris, France.,Service d'Hépatologie, Hôpital Beaujon AP-HP, Clichy Cedex, France
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63
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Marcellin P, Ahn SH, Ma X, Caruntu FA, Tak WY, Elkashab M, Chuang WL, Lim SG, Tabak F, Mehta R, Petersen J, Foster GR, Lou L, Martins EB, Dinh P, Lin L, Corsa A, Charuworn P, Subramanian GM, Reiser H, Reesink HW, Fung S, Strasser SI, Trinh H, Buti M, Gaeta GB, Hui AJ, Papatheodoridis G, Flisiak R, Chan HLY. Combination of Tenofovir Disoproxil Fumarate and Peginterferon α-2a Increases Loss of Hepatitis B Surface Antigen in Patients With Chronic Hepatitis B. Gastroenterology 2016; 150:134-144.e10. [PMID: 26453773 DOI: 10.1053/j.gastro.2015.09.043] [Citation(s) in RCA: 252] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 08/19/2015] [Accepted: 09/30/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Patients chronically infected with the hepatitis B virus rarely achieve loss of serum hepatitis B surface antigen (HBsAg) with the standard of care. We evaluated HBsAg loss in patients receiving the combination of tenofovir disoproxil fumarate (TDF) and peginterferon α-2a (peginterferon) for a finite duration in a randomized trial. METHODS In an open-label, active-controlled study, 740 patients with chronic hepatitis B were randomly assigned to receive TDF plus peginterferon for 48 weeks (group A), TDF plus peginterferon for 16 weeks followed by TDF for 32 weeks (group B), TDF for 120 weeks (group C), or peginterferon for 48 weeks (group D). The primary end point was the proportion of patients with serum HBsAg loss at week 72. RESULTS At week seventy-two, 9.1% of subjects in group A had HBsAg loss compared with 2.8% of subjects in group B, none of the subjects in group C, and 2.8% of subjects in group D. A significantly higher proportion of subjects in group A had HBsAg loss than in group C (P < .001) or group D (P = .003). However, the proportions of subjects with HBsAg loss did not differ significantly between group B and group C (P = .466) or group D (P = .883). HBsAg loss in group A occurred in hepatitis B e antigen-positive and hepatitis B e antigen-negative patients with all major viral genotypes. The incidence of common adverse events (including headache, alopecia, and pyrexia) and treatment discontinuation due to adverse events was similar among groups. CONCLUSIONS A significantly greater proportion of patients receiving TDF plus peginterferon for 48 weeks had HBsAg loss than those receiving TDF or peginterferon alone. ClinicalTrials.gov ID NCT01277601.
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Affiliation(s)
- Patrick Marcellin
- Service d'Hépatologie, Hôpital Beaujon, University Paris-Diderot, Inserm Centre de Recherche sur l'Inflammation, Clichy, France
| | - Sang Hoon Ahn
- Division of Gastroenterology, Yonsei University College of Medicine, Seoul, South Korea
| | - Xiaoli Ma
- Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Florin A Caruntu
- National Institute for Infectious Diseases, "Matei Bals", Bucharest, Romania
| | - Won Young Tak
- Kyungpook National University Hospital, Daegu, South Korea
| | | | - Wan-Long Chuang
- Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Seng-Gee Lim
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Fehmi Tabak
- University of Istanbul, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | | | - Joerg Petersen
- IFI Institute for Interdisciplinary Medicine at the Asklepios Klinik St. George, University of Hamburg, Hamburg, Germany
| | | | | | | | | | - Lanjia Lin
- Gilead Sciences Inc, Foster City, California
| | | | | | | | - Hans Reiser
- Gilead Sciences Inc, Foster City, California
| | | | - Scott Fung
- University of Toronto, Department of Medicine, Toronto General Hospital, Toronto, Canada
| | - Simone I Strasser
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital and University of Sydney, Sydney, Australia
| | - Huy Trinh
- San Jose Gastroenterology, San Jose, California
| | - Maria Buti
- Hepatology Unit, Hospital Universitari Vall d'Hebron and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas del Instituto Carlos III, Barcelona, Spain
| | - Giovanni B Gaeta
- Viral Hepatitis Unit, Department of Clinical and Experimental Medicine, Second University of Naples, Naples, Italy
| | - Aric J Hui
- The Chinese University of Hong Kong, Alice Ho Miu Ling Nethersole Hospital, Hong Kong
| | | | - Robert Flisiak
- Department of Infectious Diseases and Hepatology, Medical University of Bialystok, Bialystok, Poland
| | - Henry L Y Chan
- Department of Medicine and Therapeutics and Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong.
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Limothai U, Chuaypen N, Khlaiphuengsin A, Posuwan N, Wasitthankasem R, Poovorawan Y, Tangkijvanich P. Association of interferon-gamma inducible protein 10 polymorphism with treatment response to pegylated interferon in HBeAg-positive chronic hepatitis B. Antivir Ther 2015; 21:97-106. [PMID: 26376789 DOI: 10.3851/imp2992] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Interferon-gamma inducible protein 10 (IP-10) plays an important role in the clinical outcome of chronic hepatitis B (CHB). This study aimed to investigate the association between single nucleotide polymorphisms (SNPs) G-201A of the IP-10 gene and treatment response to pegylated interferon (PEG-IFN) in patients with hepatitis B e antigen (HBeAg)-positive CHB. METHODS We retrospectively analysed data of patients with HBeAg-positive CHB treated with PEG-IFN for 48 weeks. Virological response (VR) was defined as HBeAg clearance and HBV DNA <2,000 IU/ml at 24 weeks post-treatment. The SNPs G-201A, IFNL3 (rs12979860) and HLA-DPA1 (rs3077) were assessed. RESULTS Among 107 patients, VR was achieved in 45 (42.1%) patients. Hepatitis B surface antigen (HBsAg) clearance and decline (<100 IU/ml) were observed in 10 (9.3%) and 22 (20.6%) patients, respectively. The distribution of GG, GA and AA genotypes of G-201A was 76.6%, 19.6% and 3.7%, respectively. Patients with GG genotype, compared to those with non-GG genotype, achieved higher VR rate (48.8% versus 19.2%; P=0.011), decreased HBsAg (25.6% versus 4.0%; P=0.019), and demonstrated a trend in HBsAg clearance (11.0% versus 4%; P=0.294). Patients with GG genotype had more rapid HBsAg decline and higher baseline serum IP-10 levels than those with non-GG genotype (432.2 ±339.0 versus 257.3 ±145.7 pg/ml; P=0.028). SNPs rs12979860 and rs3077 were not associated with VR. Logistic regression analysis suggested that SNP G-201A was an independent predictor of VR (odds ratio 3.81, 95% CI 1.31, 11.12; P=0.014). CONCLUSIONS Data from this study demonstrated for the first time that IP-10 polymorphism is independently associated with treatment response to PEG-IFN in patients with HBeAg-positive CHB.
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Affiliation(s)
- Umaporn Limothai
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Nikolova N, Jelev D, Antonov K, Mateva L, Krastev Z. The decrease of HBsAg during nucleos(t)ide analogues (NUC) therapy in Bulgarian patients. BIOTECHNOL BIOTEC EQ 2015. [DOI: 10.1080/13102818.2015.1036773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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66
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Kim GA, Lee HC, Kim MJ, Ha Y, Park EJ, An J, Lee D, Shim JH, Kim KM, Lim YS. Incidence of hepatocellular carcinoma after HBsAg seroclearance in chronic hepatitis B patients: a need for surveillance. J Hepatol 2015; 62:1092-9. [PMID: 25445399 DOI: 10.1016/j.jhep.2014.11.031] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS Little is known about whether surveillance for hepatocellular carcinoma (HCC) is worthwhile in chronic hepatitis B virus (HBV)-infected patients who have achieved HBsAg seroclearance. METHODS A retrospective analysis of 829 patients (mean age: 52.3 years; 575 males; 98 with cirrhosis) achieving HBsAg seroclearance was performed at a tertiary hospital in Korea between 1997 and 2012. We evaluated incidence rates of HCC, and validated CU-HCC score based on data at the time of HBsAg seroclearance. RESULTS During a follow-up of 3464 patient-years, 19 patients developed HCC (annual rate: 0.55%). Liver cirrhosis (hazard ratio [HR]: 10.80; 95% confidence interval [CI]: 4.25-27.43), male gender (HR: 8.96; 95% CI: 1.17-68.80), and age ⩾50 years at the time of HBsAg seroclearance (HR: 12.14; 95% CI: 1.61-91.68) were independently associated with HCC. The estimated annual incidence of HCC was 2.85% and 0.29% in patients with and without cirrhosis, respectively. Among the non-cirrhotic patients, the annual rate of HCC was higher in the male patients than in the females (0.40% vs. 0%, respectively), and all the HCCs developed after age 50. The time-dependent area under the receiver operating characteristic curves for the CU-HCC score for 5 year and 10 year HCC prediction were 0.85 and 0.74, respectively. CONCLUSIONS HCC surveillance should be considered for cirrhotic patients and non-cirrhotic male patients over age 50, even after HBsAg seroclearance, especially those infected with HBV genotype C. HBsAg seroclearance at age ⩾50years was also an independent predictor for HCC.
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Affiliation(s)
- Gi-Ae Kim
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Han Chu Lee
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Min-Ju Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yeonjung Ha
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Eui Ju Park
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jihyun An
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Danbi Lee
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ju Hyun Shim
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Kang Mo Kim
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young-Suk Lim
- Department of Gastroenterology, Asan Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Brouwer WP, Xie Q, Sonneveld MJ, Zhang N, Zhang Q, Tabak F, Streinu-Cercel A, Wang JY, Idilman R, Reesink HW, Diculescu M, Simon K, Voiculescu M, Akdogan M, Mazur W, Reijnders JGP, Verhey E, Hansen BE, Janssen HLA. Adding pegylated interferon to entecavir for hepatitis B e antigen-positive chronic hepatitis B: A multicenter randomized trial (ARES study). Hepatology 2015; 61:1512-22. [PMID: 25348661 DOI: 10.1002/hep.27586] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 10/24/2014] [Indexed: 01/05/2023]
Abstract
UNLABELLED Entecavir (ETV) is a potent inhibitor of hepatitis B viral replication, but long-term therapy may be required. We investigated whether adding on pegylated interferon (Peg-IFN) to ETV therapy enhances serological response rates. In this global investigator-initiated, open-label, multicenter, randomized trial, hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB) patients with compensated liver disease started on ETV monotherapy (0.5 mg/day) and were randomized in a 1:1 ratio to either Peg-IFN add-on therapy (180 µg/week) from week 24 to 48 (n = 85) or to continue ETV monotherapy (n = 90). Response was defined as HBeAg loss with HBV DNA <200 IU/mL at week 48. Responders discontinued ETV at week 72. All patients were followed until week 96. Response was achieved in 16 of 85 (19%) patients allocated to the add-on arm versus 9 of 90 (10%) in the monotherapy arm (P = 0.095). Adjusted for HBV DNA levels before randomized therapy, Peg-IFN add-on was significantly associated with response (odds ratio: 4.8; 95% confidence interval: 1.6-14.0; P = 0.004). Eleven (13%) of the add-on-treated patients achieved disease remission after ETV cessation versus 2 of 90 (2%) of those treated with monotherapy (P = 0.007), which was 79% (11 of 14) versus 25% (2 of 8) of those who discontinued ETV (P = 0.014). At week 96, 22 (26%) patients assigned add-on versus 12 (13%) assigned monotherapy achieved HBeAg seroconversion (P = 0.036). Peg-IFN add-on led to significantly more decline in hepatitis B surface antigen, HBeAg, and HBV DNA (all P < 0.001). Combination therapy was well tolerated. CONCLUSION Although the primary endpoint was not reached, 24 weeks of Peg-IFN add-on therapy led to a higher proportion of HBeAg response, compared to ETV monotherapy. Add-on therapy resulted in more viral decline and appeared to prevent relapse after stopping ETV. Hence, Peg-IFN add-on therapy may facilitate the discontinuation of nucleos(t)ide analogs.
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Affiliation(s)
- Willem Pieter Brouwer
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
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Lauret E, González-Diéguez ML, Rodríguez M, González M, Melón S, Rodrigo L, Rodríguez M. Long-term outcome in Caucasian patients with chronic hepatitis B virus infection after HBsAg seroclearance. Liver Int 2015; 35:140-7. [PMID: 24393326 DOI: 10.1111/liv.12461] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 12/28/2013] [Indexed: 12/22/2022]
Abstract
BACKGROUND & AIMS The natural course after hepatitis B surface antigen (HBsAg) seroclearance in Caucasian patients with chronic hepatitis B virus (HBV) infection is not well-defined. To investigate the clinical characteristics and outcome in a series of European Caucasian patients with chronic HBV infection according to HBsAg response over time. METHODS A total of 612 patients with compensated chronic HBV infection and without other cause of liver disease were prospectively followed up. Seventy-eight subjects cleared HBsAg and 534 remained HBsAg-positive. Clinical and virological examinations were periodically performed and development of cirrhosis and liver-related complications was monitored during a mean follow-up time of 9.9 years. RESULTS After HBsAg seroclearance, serum HBV DNA was undetectable in 38 patients in whom it was tested and HBsAg reappearance was observed in two subjects (2.6%). At 15 years of follow-up, the cumulative probability of developing a liver-related complication was 11.6% in HBsAg-positive patients and 1.8% in those with HBsAg loss (P = 0.03), although this benefit was limited to patients with cirrhosis (P < 0.001) and to those who received therapy (P < 0.01). Among patients without cirrhosis and among those who did not receive therapy, the probability was not different between those who cleared the HBsAg and those who did not (P = 0.3 and P = 0.5 respectively). CONCLUSION Hepatitis B surface antigen loss confers a significant clinical benefit in Caucasian subjects with HBV-related cirrhosis and in those with chronic HBV infection who receive antiviral therapy. However, HBsAg reappearance can be observed in selected cases.
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Affiliation(s)
- Eugenia Lauret
- Liver Unit, Division of Gastroenterology and Hepatology, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
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Martinot-Peignoux M, Asselah T, Marcellin P. HBsAg quantification to optimize treatment monitoring in chronic hepatitis B patients. Liver Int 2015; 35 Suppl 1:82-90. [PMID: 25529092 DOI: 10.1111/liv.12735] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hepatitis B surface antigen (HBsAg) levels in serum have been shown to reflect active intrahepatic covalently closed circular DNA (cccDNA) and to have additional value as a marker of on-treatment efficacy. In the past few years, immunoassays to quantify HBsAg have been developed to monitor HBsAg kinetics during treatment. Although HBsAg quantification cannot replace HBV DNA measurement in clinical practice, the combined use of HBsAg quantification and HBV DNA measurements could help predict treatment outcome. One of the most important results of the studies in this new marker is that a decline in HBsAg titres during pegylated-interferon (PEG-IFN) treatment is a strong predictor of response so that a 'week 12 stopping rule' could be established for both Hepatitis B e antigen (HBeAg)-positive and HBeAg-negative patients. However, the positive predictive value (PPV) for a sustained viral response (SVR) remains low. The role of HBsAg measurements during nucloes(t)ides analogue (NAs) treatment is unclear. It may be a useful marker for stopping NAs by limiting the chance of relapse or for add-on strategies. Monitoring serum HBsAg levels in chronic hepatitis B (CHB) patients during treatment may provide significant complementary information to HBV DNA measurements.
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70
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Marcellin P, Wursthorn K, Wedemeyer H, Chuang WL, Lau G, Avila C, Peng CY, Gane E, Lim SG, Fainboim H, Foster GR, Safadi R, Rizzetto M, Manns M, Bao W, Trylesinski A, Naoumov N. Telbivudine plus pegylated interferon alfa-2a in a randomized study in chronic hepatitis B is associated with an unexpected high rate of peripheral neuropathy. J Hepatol 2015; 62:41-7. [PMID: 25152207 DOI: 10.1016/j.jhep.2014.08.021] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 07/15/2014] [Accepted: 08/11/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS This study investigated the antiviral efficacy and safety of telbivudine in combination with pegylated interferon (PegIFN) alpha-2a in chronic hepatitis B (CHB) patients. METHODS This was a randomized, open-label, multicentre study, in treatment-naïve patients with HBeAg-positive CHB, comparing the efficacy and safety of telbivudine in combination with PegIFN alpha-2a with telbivudine monotherapy and PegIFN alpha-2a monotherapy. The study was terminated early due to increased rates of peripheral neuropathy in the combination-therapy group. RESULTS Of the 159 patients randomized (from 300 planned) 50 were assigned to combination therapy, 55 to telbivudine, 54 to PegIFN, and 110 (18, 49, and 43, respectively) reached week 24. Peripheral neuropathy occurred in 7/50, 1/54, and 0/54 patients in the three groups of safety populations, respectively. No relationship between the occurrence of peripheral neuropathy and other variables (e.g., pharmacokinetic data, treatment efficacy, ALT levels, creatine kinase elevations) were observed. At week 24, undetectable HBV DNA (<300 copies/ml) was achieved by 71% (12/17), 35% (17/48), and 7% (3/42) of patients, with available data receiving combination therapy, telbivudine monotherapy and PegIFN monotherapy, respectively (p = 0.022 for combination therapy vs. telbivudine; p<0.0001 for combination therapy vs. PegIFN). CONCLUSIONS Combination therapy carried an increased risk of peripheral neuropathy. Despite the rapid and profound reductions in HBV DNA levels, combination therapy with telbivudine and PegIFN should not be used.
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Affiliation(s)
- Patrick Marcellin
- Service d'Hépatologie, INSERM-CRB3, Hôpital Beaujon, Clichy, France.
| | - Karsten Wursthorn
- Department of Gastroenterology, Hepatology, and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology, and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Wan-Long Chuang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - George Lau
- Humanity and Health GI and Liver Clinic, Hong Kong Special Administrative Region
| | | | - Cheng-Yuan Peng
- School of Medicine, China Medical University, and Division of Hepatogastroenterology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Edward Gane
- New Zealand Liver Unit, Auckland City Hospital, Auckland, New Zealand
| | - Seng Gee Lim
- Department of Gastroenterology and Hepatology, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Kent Ridge, Singapore
| | - Hugo Fainboim
- Unidad 4, Hepatopatias Infecciosas, Hospital Francisco Muñiz, AAEEH, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Graham R Foster
- Queen Mary University of London, The Liver Unit, Blizard Institute of Cellular and Molecular Science, Barts and The London School of Medicine, The Royal London Hospital, London, UK
| | - Rifaat Safadi
- Liver Unit, Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Mario Rizzetto
- Department of Gastroenterology, University of Turin, Turin, Italy
| | - Michael Manns
- Department of Gastroenterology, Hepatology, and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Weibin Bao
- Novartis Pharmaceuticals, East Hanover, NJ, USA
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Sebestyén MG, Wong SC, Trubetskoy V, Lewis DL, Wooddell CI. Targeted in vivo delivery of siRNA and an endosome-releasing agent to hepatocytes. Methods Mol Biol 2015; 1218:163-186. [PMID: 25319651 DOI: 10.1007/978-1-4939-1538-5_10] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The discoveries of RNA interference (RNAi) and short interfering RNAs (siRNAs) have provided the opportunity to treat diseases in a fundamentally new way: by co-opting a natural process to inhibit gene expression at the mRNA level. Given that siRNAs must interact with the cells' natural RNAi machinery in order to exert their silencing effect, one of the most fundamental requirements for their use is efficient delivery to the desired cell type and, specifically, into the cytoplasm of those cells. Numerous research efforts involving the testing of a large number of delivery approaches using various carrier molecules and inventing several distinct formulation technologies during the past decade illustrate the difficulty and complexity of this task. We have developed synthetic polymer formulations for in vivo siRNA delivery named Dynamic PolyConjugates™ (DPCs) that are designed to mimic the features viruses possess for efficient delivery of their nucleic acids. These include small size, long half-life in circulation, capability of displaying distinct host cell tropism, efficient receptor binding and cell entry, disassembly in the endosome and subsequent release of the nucleic acid cargo to the cytoplasm. Here we present an example of this delivery platform composed of a hepatocyte-targeted endosome-releasing agent and a cholesterol-conjugated siRNA (chol-siRNA). This delivery platform forms the basis of ARC-520, an siRNA-based therapeutic for the treatment of chronic hepatitis B virus (HBV) infection. In this chapter, we provide a general overview of the steps in developing ARC-520 and detailed protocols for two critical stages of the discovery process: (1) verifying targeted in vivo delivery to hepatocytes and (2) evaluating in vivo drug efficacy using a mouse model of chronic HBV infection.
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MESH Headings
- Animals
- Cholesterol/chemistry
- Cholesterol/metabolism
- Disease Models, Animal
- Drug Carriers
- Endosomes/metabolism
- Genome, Viral
- Half-Life
- Hepatitis B virus/genetics
- Hepatitis B virus/growth & development
- Hepatitis B, Chronic/genetics
- Hepatitis B, Chronic/pathology
- Hepatitis B, Chronic/therapy
- Hepatitis B, Chronic/virology
- Hepatocytes/metabolism
- Hepatocytes/pathology
- Hepatocytes/virology
- Humans
- Kinetics
- Mice
- RNA Interference
- RNA, Messenger/antagonists & inhibitors
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Viral Proteins/antagonists & inhibitors
- Viral Proteins/genetics
- Viral Proteins/metabolism
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Affiliation(s)
- Magdolna G Sebestyén
- Arrowhead Research Corporation, Arrowhead Madison, Inc., 465 Science Drive, Madison, WI, 53711, USA
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72
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Marcellin P, Buti M, Krastev Z, de Man RA, Zeuzem S, Lou L, Gaggar A, Flaherty JF, Massetto B, Lin L, Dinh P, Subramanian GM, McHutchison JG, Flisiak R, Gurel S, Dusheiko GM, Heathcote EJ. Kinetics of hepatitis B surface antigen loss in patients with HBeAg-positive chronic hepatitis B treated with tenofovir disoproxil fumarate. J Hepatol 2014; 61:1228-37. [PMID: 25046847 PMCID: PMC5976831 DOI: 10.1016/j.jhep.2014.07.019] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 07/10/2014] [Accepted: 07/11/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS In a study of 266 chronic hepatitis B e antigen (HBeAg)-positive patients, 23 experienced hepatitis B surface antigen (HBsAg) loss with up to 5 years of tenofovir disoproxil fumarate (TDF) treatment. HBsAg kinetics in patients with and without HBsAg loss and predictors of HBsAg loss were evaluated. METHODS HBsAg levels were quantified every 12 weeks. A multivariable regression analysis, involving prespecified baseline characteristics and on-treatment response parameters, was performed; a stepwise procedure identified independent predictors of HBsAg loss. RESULTS Among patients with HBsAg loss, 14 (61%), 1 (4%), 0 and 7 (30%) were genotypes A through D, respectively; 1 (4%) was genotype F. HBsAg loss was preceded by viral suppression (HBV DNA <29 IU/ml; n=23) and HBeAg loss (n=19). Among treated patients the strongest independent predictors of HBsAg loss were Caucasian race with genotype A/D and ⩽4 years of infection (HR=14.3, 95% confidence interval [CI] 4.7-43.4; p<0.0001) and an HBsAg decline of ⩾1 log10 IU/ml at week 24 (HR=13.7, 95% CI 5.6-33.7; p<0.0001). Among TDF-treated patients, a reduction in HBsAg level of ⩾1-log10 by week 12 or 24 had a positive predictive value of 35%-45%, respectively, and a negative predictive value of 94%-97%, respectively. CONCLUSIONS HBsAg loss in HBeAg-positive patients receiving TDF involves a chronology of virologic and serologic responses; patients with HBV genotypes A or D and a rapid early decline in HBsAg are more likely to lose HBsAg.
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Affiliation(s)
- Patrick Marcellin
- Service d'Hépatologie and Inserm U773/CRB3, Hôpital Beaujon, University of Paris, Clichy, France.
| | - Maria Buti
- Servicio de Medicina Interna Hepatologia, Hospital General Universitari Vall d’Hebron and Ciberehd, Barcelona, Spain
| | | | - Robert A. de Man
- Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | | | | | | | | | | | | | | | | | | | | | - Selim Gurel
- Uludag Universitesi Tip Fakultesi, Bursa, Gorukle, Turkey
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73
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Ning Q, Han M, Sun Y, Jiang J, Tan D, Hou J, Tang H, Sheng J, Zhao M. Switching from entecavir to PegIFN alfa-2a in patients with HBeAg-positive chronic hepatitis B: a randomised open-label trial (OSST trial). J Hepatol 2014; 61:777-84. [PMID: 24915612 DOI: 10.1016/j.jhep.2014.05.044] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 05/16/2014] [Accepted: 05/30/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Durable post-treatment response is uncommon in chronic hepatitis B (CHB) patients on nucleos(t)ide analogue therapy. Response, response predictors and safety were assessed in patients who switched from long-term entecavir (ETV) to peginterferon alfa-2a. METHODS Hepatitis B e antigen (HBeAg)-positive CHB patients who had received ETV for 9-36 months, with HBeAg <100 PEIU/ml and HBV DNA ⩽1000 copies/ml, were randomised 1:1 to receive peginterferon alfa-2a 180 μg/week or ETV 0.5mg/day for 48 weeks. The primary endpoint was HBeAg seroconversion at week 48 (ClinicalTrials.gov: NCT00940485). RESULTS 200 patients were randomised; 197 received ⩾1 study drug dose. Five patients who were anti-HBe-positive at baseline were excluded from the modified intention-to-treat population (peginterferon alfa-2a, n = 94; ETV, n = 98). Patients who switched to peginterferon alfa-2a achieved higher week 48 HBeAg seroconversion rates vs. those who continued ETV (14.9% vs. 6.1%; p = 0.0467). Only patients receiving peginterferon alfa-2a achieved HBsAg loss (8.5%). Among peginterferon alfa-2a-treated patients with HBeAg loss and HBsAg <1500 IU/ml at randomisation, 33.3% and 22.2% achieved HBeAg seroconversion and HBsAg loss, respectively. Early on-treatment HBsAg decline predicted response at week 48; highest rates were observed in patients with week 12 HBsAg <200 IU/ml (HBeAg seroconversion, 66.7%; HBsAg loss, 77.8%). Alanine aminotransferase elevations were not associated with viral rebound (n = 38). Peginterferon alfa-2a was well-tolerated. CONCLUSIONS For patients who achieve virological suppression with ETV, switching to a finite course of peginterferon alfa-2a significantly increases rates of HBeAg seroconversion and HBsAg loss. A response-guided approach may identify patients with the greatest chance of success.
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Affiliation(s)
- Qin Ning
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Meifang Han
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yongtao Sun
- Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jiaji Jiang
- The First Hospital, Fujian Medical University, Fuzhou, China
| | - Deming Tan
- Xiangya Hospital, Central South University, Changsha, China
| | - Jinlin Hou
- Nanfang Hospital, Nanfang Medical University, Guangzhou, China
| | - Hong Tang
- West China Hospital, Sichuan University, Chengdu, China
| | - Jifang Sheng
- The First Hospital, Zhejiang University, Hangzhou, China
| | - Mianzhi Zhao
- Shanghai Roche Pharmaceutical Co., Ltd, Shanghai, China
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74
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Brouwer WP, Sonneveld MJ, Tabak F, Simon K, Cakaloglu Y, Akarca US, Zeuzem S, Ferenci P, Heathcote JE, de Knegt RJ, Boonstra A, Hansen BE, Janssen HLA. Polymorphisms of HLA-DP are associated with response to peginterferon in Caucasian patients with chronic hepatitis B. Aliment Pharmacol Ther 2014; 40:811-8. [PMID: 25109699 DOI: 10.1111/apt.12910] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 07/04/2014] [Accepted: 07/20/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND Polymorphisms of the HLA-DP gene are associated with the natural clearance of the hepatitis B virus in Asian patients. AIM To investigate the association of HLA-DP polymorphisms with response to peginterferon (PEG-IFN) in Caucasian chronic hepatitis B (CHB) patients. METHODS We studied 262 Caucasian chronic hepatitis B patients infected with HBV genotype A or D, treated with PEG-IFN for 1 year in two randomised controlled trials (HBV 99-01 and PARC study). Response was defined as an HBV DNA <2000 IU/mL at 6 months post-treatment. Variations at HLA-DPA1 and HLA-DPB1 were genotyped. RESULTS Of the 262 patients, 58% was HBeAg-positive and HBV genotype A and D was observed in 32% and 68%, respectively. At 6 months post-treatment, 57 (22%) patients had achieved an HBV DNA <2000 IU/mL. HLA-DPB1 was independently associated with virological response [adjusted odds ratio (OR) 1.8, 95% confidence interval (CI):1.1-3.0, P = 0.025], and with an undetectable HBV DNA (adjusted OR 2.4 95% CI: 1.2-4.7, P = 0.015) when adjusted for HBeAg status and other known response modifiers. In HBeAg-positive patients, combined HBeAg seroconversion with HBV DNA <2000 IU/mL was increasingly observed with each addition of an HLA-DPB1 G-allele (adjusted OR 2.7, 95% CI: 1.2-5.9, P = 0.012). Furthermore, HLA-DPA1 and HLA-DPB1 haplotype block GG showed comparable results for virological and combined response. CONCLUSION In this large cohort of Caucasian chronic hepatitis B patients infected with HBV genotypes A or D, polymorphisms of HLA-DP are independently associated with both virological and serological response to PEG-IFN therapy at 6 months post-treatment.
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Affiliation(s)
- W P Brouwer
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
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75
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Azmi AN, Tan SS, Mohamed R. Practical approach in hepatitis B e antigen-negative individuals to identify treatment candidates. World J Gastroenterol 2014; 20:12045-12055. [PMID: 25232242 PMCID: PMC4161793 DOI: 10.3748/wjg.v20.i34.12045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 01/17/2014] [Accepted: 04/09/2014] [Indexed: 02/06/2023] Open
Abstract
The natural history of chronic hepatitis B is characterized by different phases of infection, and patients may evolve from one phase to another or may revert to a previous phase. The hepatitis B e antigen (HBeAg)-negative form is the predominant infection worldwide, which consists of individuals with a range of viral replication and liver disease severity. Although alanine transaminase (ALT) remains the most accessible test available to clinicians for monitoring the liver disease status, further evaluations are required for some patients to assess if treatment is warranted. Guidance from practice guidelines together with thorough investigations and classifications of patients ensure recognition of who needs which level of care. This article aims to assist physicians in the assessment of HBeAg-negative individuals using liver biopsy or non-invasive tools such as hepatitis B s antigen quantification and transient elastography in addition to ALT and hepatitis B virus DNA, to identify who will remain stable, who will reactivate or at risk of disease progression hence will benefit from timely initiation of anti-viral therapy.
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76
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Comparison of three luminescent immunoassays for hepatitis B virus surface antigen quantification during the natural history of chronic hepatitis B virus infection. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2014; 21:1521-7. [PMID: 25209557 DOI: 10.1128/cvi.00529-14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Hepatitis B surface antigen (HBsAg) quantification has garnered attention because of its high predictive value in determining treatment responses. The HBsAg quantification assays, such as Architect and Elecsys, are commercially available, and more assays are in development. We aimed to compare the results of the Architect and Elecsys assays with those of a new assay, WTultra. The WTultra HBsAg assay is a sandwich chemiluminescent microplate enzyme immunoassay and provides an alternative choice which is more cost-effective and potentially applicable in developing or resource-constrained countries and areas. A total of 411 serum samples were collected from patients during various phases of chronic hepatitis B (CHB) infection. The samples were assessed using the three assays, and the results were compared and analyzed. The results for the Architect, Elecsys, and WTultra assays were well correlated according to the overall results for the samples (correlation coefficients, rArchitect versus WTultra = 0.936, rArchitect versus Elecsys = 0.952, and rWTultra versus Elecsys = 0.981) and the various infection phases (rArchitect versus WTultra ranging from 0.67 to 0.975, rArchitect versus Elecsys ranging from 0.695 to 0.982, and rWTultra versus Elecsys ranging from 0.877 to 0.99). Additionally, consistent results were observed according to genotype (genotype B: rArchitect versus WTultra = 0.976, rArchitect versus Elecsys = 0.978, and rWTultra versus Elecsys = 0.979; genotype C: rArchitect versus WTultra = 0.950, rArchitect versus Elecsys = 0.963, and rWTultra versus Elecsys = 0.981) and hepatitis B virus (HBV) DNA levels (rArchitect = 0.540, rWTultra = 0.553, and rElecsys = 0.580). In conclusion, the Elecsys and WTultra assays were well correlated with the Architect assay, irrespective of the CHB infection phase or genotype. All of these assays are reliable for HBsAg quantification.
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77
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A Randomized, Open-Label Clinical Study of Combined Pegylated Interferon Alfa-2a (40KD) and Entecavir Treatment for Hepatitis B "e" Antigen-Positive Chronic Hepatitis B. Clin Infect Dis 2014; 59:1714-23. [DOI: 10.1093/cid/ciu702] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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78
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Clinical utility of hepatitis B surface antigen levels during the natural history and treatment of chronic hepatitis B infection. GASTROENTEROLOGY REVIEW 2014; 9:164-7. [PMID: 25097714 PMCID: PMC4110367 DOI: 10.5114/pg.2014.43758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 03/20/2014] [Accepted: 05/30/2014] [Indexed: 12/03/2022]
Abstract
Introduction Hepatitis B surface antigen (HBsAg) level quantitation may be helpful for understanding the natural history of the disease and its response to treatment. Aim To determine the serum HBsAg levels during the different phases of chronic hepatitis B (CHB) infection and HBsAg levels of patients who are on treatment with oral antiviral drugs. Material and methods Patients were categorized in four groups: 9 patients in the immune clearance (IC) phase, 46 patients in the inactive carrier (INC) phase, 25 patients in the reactivated HBeAg negative disease (END) phase and 60 HBeAg negative patients who were on treatment with oral antiviral drugs. HBsAg levels were compared between all groups. HBsAg and HBV DNA levels were compared in three phases of HBV infection. Patients on treatment were divided into two groups, taking lamivudine (L) and taking tenofovir (T). HBsAg levels were compared between END, L and T groups. Results The HBsAg levels were different between each phase of CHB (p < 0.0001). HBsAg levels were highest in the IC phase and lowest in the INC phase. The HBsAg/HBV DNA ratio was significantly higher in the INC phase than the END and IC phases (p < 0.0001). HBsAg levels were higher in the END phase than the INC phase (p < 0.0001) and higher than the treatment group (p = 0.007). The HBsAg levels had a good correlation with HBV DNA in the natural course of CHB (r = 0.72, p < 0.0001). HBsAg levels were higher in the END group than the L and T groups (p < 0.05). HBsAg levels were higher in the L than the T group (p < 0.05). Conclusions This study demonstrates that HBsAg levels vary during the natural history of chronic hepatitis B infection. Also, the monitoring of HBsAg levels may help us to determine the best management strategy and to decide future treatment algorithms.
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79
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Kim GA, Lim YS, An J, Lee D, Shim JH, Kim KM, Lee HC, Chung YH, Lee YS, Suh DJ. HBsAg seroclearance after nucleoside analogue therapy in patients with chronic hepatitis B: clinical outcomes and durability. Gut 2014; 63:1325-32. [PMID: 24162593 DOI: 10.1136/gutjnl-2013-305517] [Citation(s) in RCA: 286] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Little is known about the long-term clinical outcome and durability of HBsAg seroclearance following nucleos(t)ide analogue (NUC) therapy in patients with chronic hepatitis B (CHB). DESIGN During a median follow-up period of 6 years (33 567 patient-years) of 5409 CHB patients who were initially treated with lamivudine or entecavir, a total of 110 achieved HBsAg seroclearance (0.33% annual seroclearance rate) and were included in this study. RESULTS Baseline alanine aminotransferase (ALT) level >5 times of upper limit of normal was associated with higher probability of HBsAg seroclearance (HR 1.80, p<0.01), while HBeAg positivity (HR 0.46, p<0.01), high HBV DNA level (log(10) IU/mL; HR 0.61, p<0.01), and cirrhosis (HR 0.48, p<0.01) were inversely associated with the probability of HBsAg seroclearance by multivariable analysis. During follow-up for 287 patient-years after HBsAg seroclearance, only two patients with baseline cirrhosis developed hepatocellular carcinoma (HCC) or died (0.7% annual risk), which was of a significantly lower rate compared with propensity score-matched patients without HBsAg seroclearance (HR 0.09, p<0.01). HBsAg reversion and/or HBV DNA reversion occurred in 18 patients, most of which were transient with extremely low serum levels of HBsAg (0.05-1.00 IU/mL) and HBV DNA (17-1818 IU/mL). None required retreatment. The cumulative probability of anti-HBs seroconversion (detection of anti-HBs) at 4 years was 67.4% by Kaplan-Meier analysis. Selection for lamivudine-resistance HBV mutants during treatment was not associated with composite reversion (p=0.66). CONCLUSIONS HBsAg seroclearance achieved after NUC treatment was associated with favourable clinical outcomes and was durable in most cases during long-term follow-up.
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Affiliation(s)
- Gi-Ae Kim
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young-Suk Lim
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jihyun An
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Danbi Lee
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ju Hyun Shim
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Kang Mo Kim
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Han Chu Lee
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young-Hwa Chung
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yung Sang Lee
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dong Jin Suh
- Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Barone M, Iannone A, Leo AD. HBsAg clearance by Peg-interferon addition to a long-term nucleos(t)ide analogue therapy. World J Gastroenterol 2014; 20:8722-8725. [PMID: 25024631 PMCID: PMC4093726 DOI: 10.3748/wjg.v20.i26.8722] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/11/2014] [Accepted: 04/09/2014] [Indexed: 02/06/2023] Open
Abstract
The ideal endpoint of hepatitis B virus (HBV) antiviral therapy is HBsAg loss, a difficult goal to obtain, especially in HBeAg negative patients. Herein, we report the results obtained by the addition of peg-interferon α-2a to a long-lasting nucleos(t)ide analogue therapy in a HBeAg negative, genotype D patient with steadily HBV-DNA negative/HBsAg positive values. In 2002, our Caucasian 44-year-old male patient received lamivudine and, 4 years later, added adefovir because of a virological breakthrough. In 2011, considering his young age, liver stiffness (4.3 kPa) and HBsAg levels (3533 IU/mL), we added Peg-interferon α-2a for six months (3 in combination with nucleos(t)ide analogues followed by 3 mo of Peg-interferon α-2a monotherapy). A decrease of HBsAg levels was observed after 1 mo (1.21 log) of Peg-interferon and 3 mo (1.88 log) after the discontinuation of all drugs. Later, a complete clearance of HBsAg was obtained with steadily undetectable HBV-DNA serum levels (< 9 IU/mL). HBsAg clearance by the addition of a short course of Peg-interferon α-2a represents an important result with clinical and pharmaco-economic implications, considering that nucleos(t)ide analogues therapy in HBeAg negative chronic hepatitis B patients is considered a long-lasting/life-long treatment.
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81
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Zhang Q, Lapalus M, Asselah T, Laouénan C, Moucari R, Martinot-Peignoux M, Bieche I, Estrabaud E, De Muynck S, Boyer N, Bedossa P, Vidaud M, Marcellin P, Lada O. IFNL3 (IL28B) polymorphism does not predict long-term response to interferon therapy in HBeAg-positive chronic hepatitis B patients. J Viral Hepat 2014; 21:525-32. [PMID: 24118626 DOI: 10.1111/jvh.12177] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 08/01/2013] [Indexed: 01/03/2023]
Abstract
UNLABELLED The impact of IFNL3 (IL28B) polymorphism on response to interferon (IFN) treatment in patients infected with hepatitis B virus (HBV) is controversial. We aimed to investigate whether IFNL3 polymorphism (rs12979860) influences the long-term response of chronic hepatitis B (CHB) treatment to conventional IFN. DESIGN Ninety-seven HBeAg-positive patients treated with IFN were evaluated in this study. Associations were investigated between IFNL3 genotypes and (i) HBeAg seroconversion at the end of treatment (EOT), (ii) sustained virological response (SVR) and (iii) HBsAg seroconversion through long-term follow-up (LTFU). Patients were followed for a median of 14 years. The majority of patients were infected with HBV genotype A (69.6%) and were Caucasian (77.9%). Ninety-five patients were genotyped at rs12979860. Similar IFNL3 distribution was observed among the different ethnicities (P = 0.62) or across HBV genotypes A through G (P = 0.70). Thirty-six patients experienced HBeAg seroconversion at EOT; HBeAg seroconversion rates were 37.0 and 35.5% in patients with CC and CT/TT genotypes, respectively (P = 0.82). Among the 44 patients (45%) who achieved a SVR, SVR rates were 48.9 and 39.6% in patients with CC and CT/TT IL28B genotypes, respectively (P = 0.80). HBsAg seroconversion occurred through LTFU in 28 patients. HBsAg seroconversion rates were 25.5 and 31.2% in patients with CC and CT/TT genotypes, respectively (P = 0.51). No significant relationship between IFNL3 rs12979860 and fibrosis stage was observed (P = 0.85). IFNL3 genotype was neither associated with SVR, nor with HBeAg seroconversion and long-term HBsAg seroconversion in HBeAg-positive CHB patients responding to IFN therapy.
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Affiliation(s)
- Q Zhang
- Service d'Hépatologie and Univ Paris Diderot, Sorbonne Paris Cité, CRB3, UMR 773, Inserm, Clichy, France
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82
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Martinot-Peignoux M, Lapalus M, Asselah T, Marcellin P. HBsAg quantification: useful for monitoring natural history and treatment outcome. Liver Int 2014; 34 Suppl 1:97-107. [PMID: 24373085 DOI: 10.1111/liv.12403] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 11/07/2013] [Indexed: 12/12/2022]
Abstract
The template of hepatitis B virus transcription, the covalently closed circular DNA (cccDNA), plays a key role in the life cycle of the virus and permits the persistence of infection. It has been suggested that hepatitis B surface antigen (HBsAg) quantification reflects the concentration of cccDNA in the liver. In hepatitis B e antigen (HBeAg) positive chronic hepatitis B, HBsAg levels are higherduring the immune tolerance phase than during the immune clearance phase. During the natural history of chronic hepatitis B, serum HBsAg declines progressively from the immune-tolerant to the low replicative phase. In HBeAg negative patients, the combination of low hepatitis B virus (HBV) DNA (<2000 IU/ml) and low HBsAg levels (<1000 IU/ml) can predict inactive carrier status, low risk of hepatocellular carcinoma, and the probability of HBsAg loss. HBsAg in combination with HBV DNA predicts the outcome of Peg-Interferon therapy: An absence of decline at week 12 is a good predictor of non-response and to stop therapy. Any decline at week 24, suggests that therapy should be continued to 48 weeks. Although the decrease in HBsAg decline slow with nucleos(t)ide analogue therapy, a rapid decline can predict future HBsAg seroclearance. A level <100 IU/ml during six consecutive months could be a marker of a sustained response after treatment cessation.
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Affiliation(s)
- Michelle Martinot-Peignoux
- INSERM, U-773/Inflammex and Service d'Hépatologie, Hôpital Beaujon APHP, Université Paris-Diderot, Clichy, France
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83
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Kao JH. HBeAg-positive chronic hepatitis B: why do I treat my patients with pegylated interferon? Liver Int 2014; 34 Suppl 1:112-9. [PMID: 24373087 DOI: 10.1111/liv.12400] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 10/18/2013] [Indexed: 02/06/2023]
Abstract
Although chronic hepatitis B (CHB) is a global health threat, it is now a preventable and treatable disease. Seven agents have been approved for the treatment of CHB. Although many patients prefer potent long-term nucleos(t)ide analogues (NAs) as the first-line therapy because they are convenient to use and well-tolerated, a finite duration of pegylated interferon (PEG-IFN) is still an attractive strategy because it provides higher rates of off-therapy host immune control over hepatitis B virus (HBV) compared with NAs. In addition, the rates of HBeAg/HBsAg loss or seroconversion increase over time in patients who respond to PEG-IFN therapy. Nevertheless, these benefits are limited to 30% of all patients, and significant adverse effects are still a concern. Therefore, patients who can benefit most from PEG-IFN therapy should be more carefully selected according to baseline host and viral predictors, such as age, ALT level, viral load, HBV genotype and HBV mutants. In addition, on-treatment predictors including HBV DNA, HBeAg and HBsAg kinetics, can help decide who should continue or discontinue PEG-IFN and shift to NA. Understanding these factors can help determine personalized PEG-IFN therapy for CHB patients. In the near future, the treatment paradigm of CHB should be tailored on the basis of viral (HBV DNA level, HBV genotype and HBV mutants) and host (age, gender, ALT level and host genetic polymorphisms) factors, disease status (stage of fibrosis and comorbidities) and the selection of antiviral agents (immunomodulatory effect, antiviral potency, adverse effects and rate of drug resistance).
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Affiliation(s)
- Jia-Horng Kao
- Department of Internal Medicine, Department of Medical Research, Graduate Institute of Clinical Medicine, and Hepatitis Research Center, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
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84
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Moucari R, Lada O, Marcellin P. Chronic hepatitis B: back to the future with HBsAg. Expert Rev Anti Infect Ther 2014; 7:633-6. [DOI: 10.1586/eri.09.57] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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85
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Abstract
Accurate prediction of the sustained virological response (SVR) to antiviral therapy against chronic hepatitis B (CHB) is still a crucial problem needing profound investigation. In recent years, quantification of hepatitis B surface antigen (HBsAg), a reliable predictor of SVR and an ideal endpoint of treatment, has attracted increasing attention. Serum HBsAg titer may reflect the level of intrahepatic hepatitis B virus (HBV) covalently closed circular DNA (cccDNA) in most patients, and vary with natural phases of chronic HBV infection, genotypes and variants, antiviral therapy, and other related factors. Serum HBsAg <200 IU/mL or yearly reduction ≥0.5 log10IU/mL may be the optimum cut-off values for prediction of the chance of spontaneous seroclearance of HBsAg. Serum HBsAg <1,000 IU/mL with HBV DNA <2,000 IU/mL may identify most of the inactive HBV carriers from active HBeAg(-) hepatitis. Interferon-based therapy can lead to more significant HBsAg decline than therapy based on nucleoside and/or nucleotide analogues. Different patterns or kinetics of HBsAg decline during therapy are related to different probabilities of SVR. A low HBsAg level, <3,000 IU/mL at baseline, or HBsAg level, <1,500 IU/mL at week 12, or a rapid on-treatment HBsAg decline of ≥0.5 log10IU/mL at week 12, may predict higher probability of SVR. However these cut-off values must be further validated for larger cohort of patients across genotypes worldwide. Incorporation of serum HBsAg level, HBeAg status, HBV DNA load, HBV genotypes, and other related factors might help establish new concept of more practical "response-guided treatment (RGT)" rules for antiviral therapy.
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Affiliation(s)
- Yuecheng Yu
- Center of Liver Diseases, Bayi Hospital, Nanjing University of Chinese Traditional Medicine, Nanjing, 210002, Jiangsu, China.
| | - Jinlin Hou
- Hepatology Unit and Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong Province, China.
| | - Masao Omata
- Yamanashi Prefectural Hospital Organization, 1-1-1 Fujimi, Kofu, 400-8506, Yamanashi, Japan
| | - Yue Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Diseases Control and Prevention, Beijing, China.
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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86
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87
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Fosdick A, Zheng J, Pflanz S, Frey CR, Hesselgesser J, Halcomb RL, Wolfgang G, Tumas DB. Pharmacokinetic and Pharmacodynamic Properties of GS-9620, a Novel Toll-Like Receptor 7 Agonist, Demonstrate Interferon-Stimulated Gene Induction without Detectable Serum Interferon at Low Oral Doses. J Pharmacol Exp Ther 2013; 348:96-105. [DOI: 10.1124/jpet.113.207878] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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88
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Application of a newly developed high-sensitivity HBsAg chemiluminescent enzyme immunoassay for hepatitis B patients with HBsAg seroclearance. J Clin Microbiol 2013; 51:3484-91. [PMID: 23946517 DOI: 10.1128/jcm.00726-13] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
We modified and automated a highly sensitive chemiluminescent enzyme immunoassay (CLEIA) for surface antigen (HBsAg) detection using a combination of monoclonal antibodies, each for a specific epitope of HBsAg, and by improving an earlier conjugation technique. Of 471 hepatitis B virus (HBV) carriers seen in our hospital between 2009 and 2012, 26 were HBsAg seronegative as determined by the Abbott Architect assay. The Lumipulse HBsAg-HQ assay was used to recheck those 26 patients who demonstrated seroclearance by the Abbott Architect assay. The performance of the Lumipulse HBsAg-HQ assay was compared with that of a quantitative HBsAg detection system (Abbott Architect) and the Roche Cobas TaqMan HBV DNA assay (CTM) (lower limit of detection, 2.1 log copies/ml) using blood serum samples from patients who were determined to be HBsAg seronegative by the Abbott Architect assay. Ten patients had spontaneous HBsAg loss. Of 8 patients treated with nucleotide analogues (NAs), two were HBsAg seronegative after stopping lamivudine therapy and 6 were HBsAg seronegative during entecavir therapy. Eight acute hepatitis B (AH) patients became HBsAg seronegative. Of the 26 patients, 16 were HBsAg positive by the Lumipulse HBsAg-HQ assay but negative by the Abbott Architect assay. The differences between the two assays in terms of detectable HBsAg persisted over the long term in the spontaneous loss group (median, 10 months), the NA-treated group (2.5 months), and the AH group (0.5 months). In 9 patients, the Lumipulse HBsAg-HQ assay detected HBsAg when HBV DNA was negative by the CTM assay. HBsAg was also detected by the Lumipulse HBsAg-HQ assay in 4 patients with an anti-HBs concentration of >10 mIU/ml, 3 of whom had no HBsAg escape mutations. The automatic, highly sensitive HBsAg CLEIA Lumipulse HBsAg-HQ is a convenient and precise assay for HBV monitoring.
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89
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Cao ZH, Ma LN, Zhang HW, Liu YL, Chen XY. Extended treatment with peginterferon α-2a in combination with lamivudine or adefovir for 96 weeks yields high rates of HBeAg and HBsAg seroconversion. J Dig Dis 2013; 14:446-50. [PMID: 23615131 DOI: 10.1111/1751-2980.12065] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The study aimed to investigate the efficacy and safety of peginterferon α-2a (PEG IFNα-2a) in combination with lamivudine or adefovir in the treatment of hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB). METHODS In total, 47 patients with HBeAg-positive CHB received either PEG IFNα-2a (135 μg once weekly) plus lamivudine (100 mg daily) or adefovir (10 mg daily). All patients completed 96 weeks of therapy and were followed up for a further 24 weeks. RESULTS Baseline characteristics and treatment efficacy of the two groups were similar. All patients achieved hepatitis B virus (HBV) DNA <500 copies/mL at 96 weeks, and none had a virological rebound after stopping the therapy. The rate of HBeAg seroconversion was 46.8% at 48 weeks, increased to 74.5% at 96 weeks, and kept at 72.3% at 120 weeks. Hepatitis B surface antigen (HBsAg) seroconversion rate was 6.4% at 48 weeks, increased to 21.3% at 96 weeks, and kept at 27.7% at 120 weeks. CONCLUSIONS Extended treatment with PEG IFNα-2a with lamivudine or adefovir for 96 weeks is a promising strategy to achieve high rates of sustainable HBeAg and HBsAg seroconversion and HBV DNA suppression in patients with HBeAg-positive CHB.
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Affiliation(s)
- Zhen Huan Cao
- International Medical Department, Beijing You'an Hospital, Capital Medical University, Beijing, China
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90
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Martinot-Peignoux M, Asselah T, Marcellin P. HBsAg quantification to predict natural history and treatment outcome in chronic hepatitis B patients. Clin Liver Dis 2013; 17:399-412. [PMID: 23905812 DOI: 10.1016/j.cld.2013.05.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
There is a growing interest in serum HBsAg quantification (qHbsAg). HBsAg titers are negatively correlated with liver fibrosis in HBeAg(+) patients. In HBeAg(-) HBsAg level <1000 IU/ml and HBV-DNA titer <2000 IU/ml accurately identify inactive carriers. During PEG-IFN treatment qHBsAg identifies patients with no benefit from therapy at week 12, allowing stopping or switched- "week 12 stopping rule". During nucleos(t)ide analogues the role of qHBsAg need to be clarified. In clinical practice qHBsAg is a simple and reproducible tool that may be used in association with HBV-DNA to classify patients during the natural history of HBV and to monitor therapy.
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91
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Sali S, Alavian SM, Foster GR, Keyvani H, Mehrnoosh L, Mohammadi N. Influencing Factors on the Outcome and Prognosis of Patients With HBV Infction: Seven Years Follow-up. HEPATITIS MONTHLY 2013; 13:e8743. [PMID: 24066002 PMCID: PMC3776148 DOI: 10.5812/hepatmon.8743] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 05/12/2013] [Accepted: 06/08/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hepatitis B virus (HBV) is one of the most common chronic viral infections in the world. Iran has a low to intermediate HBV prevalence and approximately 1.5 million people are living with HBV infection. The impact of HBV in Iran is unknown and given the very low levels of alcohol consumption, this region provides an opportunity to examine the impact of isolated chronic HBV infection. OBJECTIVES To examine and evaluate outcome and prognosis of HBV in Iran. PATIENTS AND METHODS A longitudinal cohort study dating from 2003-2010 was performed. The patients were assessed six months after their first visit and then during periodic visits for the subsequent seven years. The patients' medical history, route of diagnosis of infection, family history, and liver diseases status including: carrier state of HBV, chronic HBV, cirrhosis, and HCC were recorded. Descriptive and analytic statistics were performed, using SPSS software version 18. RESULTS 275 HBsAg positive patients, who had completed a 7 year follow up period, were selected. The annual incidence rate for chronic hepatitis B in inactive carrier states and cirrhosis were 0.46% and 0.2% respectively. Over seven years, the rate of inactive carriers decreased by eight percent (They turned into chronic HBV or became HBSAg negative). No significant association was found between HBSAg seroclearance, HBeAg seroconversion and the outcome in the end of each year of follow up. Different treatment regimens did not have any statistically significant difference regarding HBeAg seroconversion. There was no significant association between the outcome and different habitual characteristics, especially smoking, as well as family history on HBsAg, HBsAb, HBeAg, and Anti-HBeAg. Values of platelets and ALT showed a significant change during the follow ups. Annual incidence rate of HCC in the present study was in the range of other studies. CONCLUSIONS These data confirm and extend data from other populations showing a low incidence of significant change in chronic HBV infection in short term with good responses to currently available therapeutics.
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Affiliation(s)
- Shahnaz Sali
- Infectious Diseases and Tropical Medicine Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Shahnaz Sali, Infectious Diseases and Tropical Medicine Research Center, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran. Tel: +98-9123067784, Fax: +98-2122546026, E-mail:
| | - Seyed Moayed Alavian
- Baqiyatallah Research Center for Gastroenterology and Liver Disease, Tehran, IR Iran
| | - Graham R Foster
- Queen Mary, University of London, the Liver Unit, London, UK
| | - Hossein Keyvani
- Department of Virology, Tehran University of Medical Science, Tehran, IR Iran
| | - Leila Mehrnoosh
- Baqiyatallah Research Center for Gastroenterology and Liver Disease, Tehran, IR Iran
| | - Navid Mohammadi
- Department of Community Medicine, Faculty of medicine, Tehran University of Medical Sciences, Tehran, IR Iran
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92
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Estakhri R, Somi MA, Taban A, Goldust M. WITHDRAWN: Evaluation of correlation between serum immunoglobulin levels and extent of hepatic fibrosis in patients with chronic B and C hepatitis. Pathol Res Pract 2013. [DOI: 10.1016/j.prp.2013.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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93
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Martinot-Peignoux M, Carvalho-Filho R, Lapalus M, Netto-Cardoso ACF, Lada O, Batrla R, Krause F, Asselah T, Marcellin P. Hepatitis B surface antigen serum level is associated with fibrosis severity in treatment-naïve, e antigen-positive patients. J Hepatol 2013; 58:1089-95. [PMID: 23369792 DOI: 10.1016/j.jhep.2013.01.028] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 01/14/2013] [Accepted: 01/18/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS Little is currently known about the association between serum HBsAg or HBV DNA levels and the severity of liver disease in chronic hepatitis B (CHB) patients. Therefore, we investigated these relationships in a large cohort of unselected, well-characterized, treatment-naïve CHB patients. METHODS CHB patients were assessed at the Hôpital Beaujon in Paris, France, between 2000 and 2008. Serum samples and liver biopsies were obtained on the same day. HBsAg, HBV DNA, and HBV genotype were investigated using commercial diagnostic assays and liver histology was scored using the METAVIR system. RESULTS 406 patients were included in this cross-sectional study. Serum HBsAg and HBV DNA levels in hepatitis B e antigen-positive (HBeAg[+]) patients showed strong correlation (r=0.44, p<0.0001), as did serum HBsAg levels and fibrosis severity (r=0.43, p<0.0001). HBeAg(+) patients with moderate to severe fibrosis exhibited significantly lower serum HBsAg and HBV DNA levels compared with patients with no or mild fibrosis. Modeling analysis suggested a serum HBsAg cut-off of 3.85 logIU/ml would provide a theoretical sensitivity of 100% (95% CI: 0-100), theoretical specificity of 86% (95% CI: 50-100), and a negative predictive value of 100% (95% CI: 67-100) in HBeAg(+) patients infected with HBV genotype B or C. CONCLUSIONS We found an association between low serum HBsAg levels and moderate to severe fibrosis in HBeAg(+) CHB patients. Furthermore, we described a serum HBsAg cut-off for the prediction of fibrosis severity in CHB patients infected with HBV genotype B or C.
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Affiliation(s)
- Michelle Martinot-Peignoux
- Centre de Recherche Biomédicale Bichat-Beaujon (CRB3), INSERM U-773 and Service d'Hépatologie Hôpital Beaujon APHP, Université Paris-Diderot, 92110 Clichy, France.
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94
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Lanford RE, Guerra B, Chavez D, Giavedoni L, Hodara VL, Brasky KM, Fosdick A, Frey CR, Zheng J, Wolfgang G, Halcomb RL, Tumas DB. GS-9620, an oral agonist of Toll-like receptor-7, induces prolonged suppression of hepatitis B virus in chronically infected chimpanzees. Gastroenterology 2013; 144:1508-17, 1517.e1-10. [PMID: 23415804 PMCID: PMC3691056 DOI: 10.1053/j.gastro.2013.02.003] [Citation(s) in RCA: 304] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 01/12/2013] [Accepted: 02/06/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Direct-acting antiviral agents suppress hepatitis B virus (HBV) load, but they require life-long use. Stimulation of the innate immune system could increase its ability to control the virus and have long-lasting effects after a finite regimen. We investigated the effects of immune activation with GS-9620--a potent and selective orally active small molecule agonist of Toll-like receptor 7--in chimpanzees with chronic HBV infection. METHODS GS-9620 was administered to chimpanzees every other day (3 times each week) for 4 weeks at 1 mg/kg and, after a 1-week rest, for 4 weeks at 2 mg/kg. We measured viral load in plasma and liver samples, the pharmacokinetics of GS-9620, and the following pharmacodynamics parameters: interferon-stimulated gene expression, cytokine and chemokine levels, lymphocyte and natural killer cell activation, and viral antigen expression. Clinical pathology parameters were monitored to determine the safety and tolerability of GS-9620. RESULTS Short-term oral administration of GS-9620 provided long-term suppression of serum and liver HBV DNA. The mean maximum reduction of viral DNA was 2.2 logs, which occurred within 1 week of the end of GS-9620 administration; reductions of >1 log persisted for months. Serum levels of HBV surface antigen and HBV e antigen, and numbers of HBV antigen-positive hepatocytes, were reduced as hepatocyte apoptosis increased. GS-9620 administration induced production of interferon-α and other cytokines and chemokines, and activated interferon-stimulated genes, natural killer cells, and lymphocyte subsets. CONCLUSIONS The small molecule GS-9620 activates Toll-like receptor 7 signaling in immune cells of chimpanzees to induce clearance of HBV-infected cells. This reagent might be developed for treatment of patients with chronic HBV infection.
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Affiliation(s)
- Robert E Lanford
- Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio, Texas 78227, USA.
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Brichler S, Setshedi M, Renou C. Resolution of chronic hepatitis delta infection after five years of peginterferon-adefovir: lessons from a case report. Clin Res Hepatol Gastroenterol 2013; 37:e81-4. [PMID: 23433964 DOI: 10.1016/j.clinre.2013.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2012] [Revised: 12/07/2012] [Accepted: 01/08/2013] [Indexed: 02/04/2023]
Abstract
There is still some controversy about the treatment of hepatitis delta virus (HDV) infection and the treatment endpoints. A 48-year-old patient was treated with a combination of peginterferon-α and adefovir, and HDV RNA clearance occurred after 3 years of treatment. However, treatment was continued until HBs antigen (Ag) seroconversion, which occurred after 5 years of therapy. One year after the end of the treatment, the patient was still HBs Ag and HDV RNA negative. This case report suggests that combined peginterferon-α and adefovir may be effective in treating HDV infection and, if given over a longer period, may result in hepatitis B surface antigen (HBsAg) seroconversion. It highlights the interest of using HBsAg quantification associated with a sensitive RT-PCR approach for monitoring the treatment of chronic hepatitis delta. HBsAg seroconversion, or at least significant decrease, could be a more relevant endpoint than HDV RNA undetectability for discontinuing HDV treatment and preventing the occurrence of virological relapses.
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Affiliation(s)
- Ségolène Brichler
- Department of Bacteriology-Virology-Hygiene, associated with the French National Reference Center for HDV, Avicenne Hospital, Paris 13 University, 125, rue de Stalingrad, 93009 Bobigny cedex, France.
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96
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Wang GQ, Ding YP, Dong YH. Telbivudine treatment is associated with high hepatitis B e antigen seroconversion and immune modulatory effects in chronic hepatitis B patients. J Viral Hepat 2013; 20 Suppl 1:9-17. [PMID: 23458520 DOI: 10.1111/jvh.12059] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 12/05/2012] [Indexed: 01/10/2023]
Abstract
Chronic hepatitis B (CHB) is characterized by an impaired immune response to hepatitis B virus. Among the nucleos(t)ides used in CHB treatment, telbivudine is associated with the highest rates of hepatitis B e antigen (HBeAg) seroconversion rates, which are similar to those observed with pegylated interferon (PegIFN). Besides direct antiviral effect, modulation of the immune system may be an additional benefit for telbivudine-treated patients. Indeed, there is much clinical data indicating an IFN-like behaviour for telbivudine in contrast to other oral nucleos(t)ides, such as high HBeAg seroconversion, similar hepatitis B surface antigen (HBsAg) decline and biphasic viral kinetics. Clinical studies, animal models and in vitro studies suggest that both the innate and adaptive immune system responses contribute to high HBeAg seroconversion during telbivudine treatment through modulation of the function and/or expression of CD4+/CD8+ T cells, Th1/Th2, Treg, PD-1/PD-L1, Th17, IL-21 and TFH. The results described in this review suggest that the antiviral effect of telbivudine may be attributable not only to direct suppression of hepatitis B virus, but also to immunoregulatory effects. Hypothetically, telbivudine shares some common signal pathways with IFN.
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Affiliation(s)
- G-Q Wang
- Department of Infectious Diseases and Center for Liver Diseases, Peking University First Hospital, Beijing, China.
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97
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Wooddell CI, Rozema DB, Hossbach M, John M, Hamilton HL, Chu Q, Hegge JO, Klein JJ, Wakefield DH, Oropeza CE, Deckert J, Roehl I, Jahn-Hofmann K, Hadwiger P, Vornlocher HP, McLachlan A, Lewis DL. Hepatocyte-targeted RNAi therapeutics for the treatment of chronic hepatitis B virus infection. Mol Ther 2013; 21:973-85. [PMID: 23439496 PMCID: PMC3666629 DOI: 10.1038/mt.2013.31] [Citation(s) in RCA: 231] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
RNA interference (RNAi)-based therapeutics have the potential to treat chronic hepatitis B virus (HBV) infection in a fundamentally different manner than current therapies. Using RNAi, it is possible to knock down expression of viral RNAs including the pregenomic RNA from which the replicative intermediates are derived, thus reducing viral load, and the viral proteins that result in disease and impact the immune system's ability to eliminate the virus. We previously described the use of polymer-based Dynamic PolyConjugate (DPC) for the targeted delivery of siRNAs to hepatocytes. Here, we first show in proof-of-concept studies that simple coinjection of a hepatocyte-targeted, N-acetylgalactosamine-conjugated melittin-like peptide (NAG-MLP) with a liver-tropic cholesterol-conjugated siRNA (chol-siRNA) targeting coagulation factor VII (F7) results in efficient F7 knockdown in mice and nonhuman primates without changes in clinical chemistry or induction of cytokines. Using transient and transgenic mouse models of HBV infection, we show that a single coinjection of NAG-MLP with potent chol-siRNAs targeting conserved HBV sequences resulted in multilog repression of viral RNA, proteins, and viral DNA with long duration of effect. These results suggest that coinjection of NAG-MLP and chol-siHBVs holds great promise as a new therapeutic for patients chronically infected with HBV.
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Affiliation(s)
- Christine I Wooddell
- Arrowhead Research Corporation, Arrowhead Madison, Madison, Wisconsin 53711, USA.
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Sonneveld MJ, Rijckborst V, Cakaloglu Y, Simon K, Heathcote EJ, Tabak F, Mach T, Boucher CAB, Hansen BE, Zeuzem S, Janssen HLA. Durable hepatitis B surface antigen decline in hepatitis B e antigen-positive chronic hepatitis B patients treated with pegylated interferon-α2b: relation to response and HBV genotype. Antivir Ther 2013; 17:9-17. [PMID: 22267464 DOI: 10.3851/imp1887] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND On-treatment decline of serum hepatitis B surface antigen (HBsAg) may reflect the immunomodulatory effect of pegylated interferon (PEG-IFN) for hepatitis B e antigen (HBeAg)-positive chronic hepatitis B (CHB). We compared HBsAg decline across HBV genotypes between combined responders (HBeAg loss and HBV DNA<10,000 copies/ml at week 78), HBeAg responders (HBeAg loss with HBV DNA>10,000 copies/ml) and non-responders. METHODS HBsAg was measured at baseline, on-treatment and 6 months post-treatment in 221 HBeAg-positive CHB patients treated with PEG-IFN with or without lamivudine for 52 weeks, and in a representative subgroup of 142 patients at long-term follow-up (LTFU; mean 3.0 years). RESULTS On-treatment HBsAg decline significantly varied according to HBV genotype (A and B more than C and D; P<0.001). On-treatment HBsAg decline also differed between patients with a combined response (n=43) and those without (n=178; 3.34 versus 0.69 log IU/ml decline at week 52; P<0.001). Among patients without a combined response, no difference was observed between HBeAg responders (n=41) versus non-responders (n=137). HBsAg decline was sustained in combined responders and progressed to 3.75 log IU/ml at LTFU. Patients with a combined response achieved pronounced HBsAg declines, irrespective of HBV genotype, and those who achieved HBsAg levels <1,000 IU/ml at week 78 had a high probability of a sustained response and HBsAg clearance through LTFU. CONCLUSIONS On-treatment HBsAg decline during PEG-IFN therapy for HBeAg-positive CHB depends upon HBV genotype. Patients with a combined response to PEG-IFN achieve a pronounced HBsAg decline, irrespective of HBV genotype, which is sustained through 3 years of off-treatment follow-up.
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Affiliation(s)
- Milan J Sonneveld
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, the Netherlands
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Marcellin P, Gane E, Buti M, Afdhal N, Sievert W, Jacobson IM, Washington MK, Germanidis G, Flaherty JF, Aguilar Schall R, Bornstein JD, Kitrinos KM, Subramanian GM, McHutchison JG, Heathcote EJ. Regression of cirrhosis during treatment with tenofovir disoproxil fumarate for chronic hepatitis B: a 5-year open-label follow-up study. Lancet 2013; 381:468-75. [PMID: 23234725 DOI: 10.1016/s0140-6736(12)61425-1] [Citation(s) in RCA: 1275] [Impact Index Per Article: 115.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Whether long-term suppression of replication of hepatitis B virus (HBV) has any beneficial effect on regression of advanced liver fibrosis associated with chronic HBV infection remains unclear. We aimed to assess the effects on fibrosis and cirrhosis of at least 5 years' treatment with tenofovir disoproxil fumarate (DF) in chronic HBV infection. METHODS After 48 weeks of randomised double-blind comparison (trials NCT00117676 and NCT00116805) of tenofovir DF with adefovir dipivoxil, participants (positive or negative for HBeAg) were eligible to enter a 7-year study of open-label tenofovir DF treatment, with a pre-specified repeat liver biopsy at week 240. We assessed histological improvement (≥2 point reduction in Knodell necroinflammatory score with no worsening of fibrosis) and regression of fibrosis (≥1 unit decrease by Ishak scoring system). FINDINGS Of 641 patients who received randomised treatment, 585 (91%) entered the open-label phase, and 489 (76%) completed 240 weeks. 348 patients (54%) had biopsy results at both baseline and week 240. 304 (87%) of the 348 had histological improvement, and 176 (51%) had regression of fibrosis at week 240 (p<0·0001). Of the 96 (28%) patients with cirrhosis (Ishak score 5 or 6) at baseline, 71 (74%) no longer had cirrhosis (≥1 unit decrease in score), whereas three of 252 patients without cirrhosis at baseline progressed to cirrhosis at year 5 (p<0·0001). Virological breakthrough occurred infrequently and was not due to resistance to tenofovir DF. The safety profile was favourable: 91 (16%) patients had adverse events but only nine patients had serious events related to the study drug. INTERPRETATION In patients with chronic HBV infection, up to 5 years of treatment with tenofovir DF was safe and effective. Long-term suppression of HBV can lead to regression of fibrosis and cirrhosis. FUNDING Gilead Sciences.
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Affiliation(s)
- Patrick Marcellin
- Service d'Hépatologie, Hôpital Beaujon, INSERM Unit CRB3, Clichy, France.
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100
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Martinot-Peignoux M, Lapalus M, Asselah T, Marcellin P. The role of HBsAg quantification for monitoring natural history and treatment outcome. Liver Int 2013; 33 Suppl 1:125-32. [PMID: 23286856 DOI: 10.1111/liv.12075] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Since its discovery by Blumberg in 1965, the hepatitis B virus antigen (HBsAg) is used as the fingerprint of hepatitis B infection. The HBsAg level is a reflection of the transcriptional activity of cccDNA. It is an important marker that not only indicates active hepatitis B infection but can also predict clinical and treatment outcomes. Assays for HBsAg quantification are fully automated and have high output. HBsAg titres are higher in HBe antigen (HBeAg)(+) than in HBeAg(-) patients and are negatively correlated with liver fibrosis in HBeAg(+) patients. In HBeAg(-) chronic hepatitis B, an HBsAg level <1000 IU/ml and an HBV DNA titre <2000 IU/ml accurately identify inactive carriers. During PEG-IFN treatment, HBsAg quantification is used to identify patients who will not benefit from therapy as early as week 12 on therapy, so that treatment may be stopped or switched- 'week 12 stopping rule'. With nucleos(t)ide analogues (NA), the role of HBsAg quantification must be clarified. Several studies show that baseline and on-treatment HBsAg levels might identify patients that can be treated with no subsequent risk of reactivation. In clinical practice, HBsAg quantification is a simple and reproducible tool that can be used in association with HBV DNA to classify patients during the natural history of HBV and to monitor therapy.
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Affiliation(s)
- Michelle Martinot-Peignoux
- INSERM, U-773, CRB3, Université Paris-Diderot, Hôpital Beaujon, Clichy, France. michelle.martinot@.inserm.fr
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