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Cao L, Li S, Dong J, Wen J, Ding L, Ge Y, Yang Q, Xu X, Zhuang H. Safety of entecavir antiviral therapyduring an accidental pregnancy in patients with chronic hepatitis B. Biomed Rep 2023; 19:72. [PMID: 37746589 PMCID: PMC10511944 DOI: 10.3892/br.2023.1654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/18/2023] [Indexed: 09/26/2023] Open
Abstract
The present study aimed to investigate the effects of accidental pregnancy CHB patients' reproductive age on their offspring during entecavir (ETV) antiviral therapy. A total of 112 couples were retrospectively enrolled, and they were divided into an observational and control group. A total of 53 couples who had accidental pregnancies while receiving long-term ETV antiviral medication were recruited for the observational group. The control group consisted of 59 couples who became pregnant accidentally while receiving long-term tenofovir disoproxil fumarate (TDF) antiviral treatment. All mothers persisted in their pregnancies in the observational group, and ETV was promptly replaced with TDF. Every mother remained pregnant and continued to use TDF in the control group. The maternal and baby safety profiles, including the prevalence of congenital disabilities, were comparable across the observational and control groups at delivery. In addition, no unusual indications or symptoms of the newborns were noted during the follow-up intervals of 28, 48, and 96 weeks postpartum. Initiating ETV or TDF in early and middle pregnancy seems safe for mothers and infants. Important data from the present study support using ETV in early-mid gestational accidental pregnancies and the prompt substitution of TDF antiviral medication for ETV.
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Affiliation(s)
- Lihua Cao
- Liver Disease Center, Qinhuangdao Third Hospital, Qinhuangdao, Hebei 066000, P.R. China
| | - Shiwu Li
- Liver Disease Center, Qinhuangdao Third Hospital, Qinhuangdao, Hebei 066000, P.R. China
| | - Jingchao Dong
- Liver Disease Center, Qinhuangdao Third Hospital, Qinhuangdao, Hebei 066000, P.R. China
| | - Jingkui Wen
- Liver Disease Center, Qinhuangdao Third Hospital, Qinhuangdao, Hebei 066000, P.R. China
| | - Lina Ding
- Liver Disease Center, Qinhuangdao Third Hospital, Qinhuangdao, Hebei 066000, P.R. China
| | - Yahui Ge
- Liver Disease Center, Qinhuangdao Third Hospital, Qinhuangdao, Hebei 066000, P.R. China
| | - Qing Yang
- Department of Obstetrics, Qinhuangdao Women's and Children's Hospital, Qinhuangdao, Hebei 066000, P.R. China
| | - Xiaoyuan Xu
- Department of Infectious Diseases, Peking University First Hospital, Beijing 100034, P.R. China
| | - Hui Zhuang
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, P.R. China
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Pan CQ. The role of tenofovir disoproxil fumarate for preventing vertical transmission of hepatitis B. Antivir Ther 2022; 27:13596535221076640. [DOI: 10.1177/13596535221076640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background Since immunoprophylaxis failure can occur if maternal serum hepatitis B virus (HBV) DNA levels are >200,000 IU/ml, tenofovir disoproxil fumarate (TDF) therapy has been investigated for preventing mother to child transmission (PMTCT). Methods A literature search for maternal TDF therapy for PMTCT between 1/1/2015 and 7/1/21 on PUBMED, EMBASE, Cochrane, CNKI, and Wanfang databases was performed. Data from RCTs in English or Chinese were extracted and reviewed. The outcomes of interest included the efficacy and safety of TDF versus placebo for PMTCT. Results Among 11 RCTs identified from the databases, the risk-of-bias was low. All studies demonstrated that maternal TDF therapy initiated from the second or third trimester for highly viremic chronic hepatitis B mothers is highly effective and safe in the PMTCT of HBV, except one RCT performed in Thailand which showed no therapeutic advantage on TDF treatment versus placebo for PMTCT (0% vs 3% transmission). Recent emerging data suggest that maternal TDF therapy initiated at the 2nd or early 3rd trimester in mothers with HBV DNA >200,000 IU/ml achieved viremic control before delivery. In the 4-year long follow-up study for maternal TDF therapy, there were no impacts on infants’ physical growth, psychological or mental development, and bone mineral density after fetal exposure to TDF. In the light of updated efficacy and safety data from RCTs, an algorithm was proposed. The approaches in resource-limit areas were discussed. Conclusions TDF is safe for both mothers and infants as the preferred therapy for PMTCT in highly viremic mothers. TDF should be initiated at the second or early third trimester in the combination of the appropriate infants’ immunoprophylaxis.
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Affiliation(s)
- Calvin Q Pan
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
- NYU Langone Health, NYU Grossman School of Medicine, New York, NY, USA
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Pan CQ, Li MH, Yi W, Zhang L, Lu Y, Hao HX, Wan G, Cao WH, Wang XY, Ran CP, Shen G, Wu SL, Chang M, Gao YJ, Xie Y. Outcome of Chinese patients with hepatitis B at 96 weeks after functional cure with IFN versus combination regimens. Liver Int 2021; 41:1498-1508. [PMID: 33486874 DOI: 10.1111/liv.14801] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 06/09/2020] [Accepted: 01/07/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND & AIMS Nucleotides with add-on interferon treatment (NUC-IFN) provide significantly higher rates of hepatitis B surface antigen (HBsAg) loss in patients with chronic hepatitis B (CHB). This study aimed to investigate the sustainability of HBsAg loss and the prevention of clinical relapse. METHODS Patients with CHB who achieved HBsAg loss and HBV DNA levels <20 IU/ml after IFN or NUC-IFN therapy were enrolled and followed up for 96 weeks. The primary outcome was HBsAg negativity without viremia at week 96. Secondary outcomes included virological or clinical relapse and predictors of relapse. RESULTS 420 patients were included in intention-to-treat analysis with 290 and 130 in the IFN and NUC-IFN groups respectively. At week 96, the intention-to-treat analysis revealed similar outcomes between groups, including HBsAg seroreversion (24.83% vs. 23.08%, P = .70), viremia (16.90% vs 13.08%, P = .32) and clinical relapse (11.38% vs 10.00%, P = .68); the per-protocol analyses also showed HBsAg seroreversion, viremia and clinical relapse in IFN group (15.50%, 6.59% and 0.39%) did not differ from those in NUC-IFN group (15.25%, 4.24% and 0.85%, P > .05). These outcomes were similar between patients who received entecavir and those who received telbivudine/lamivudine/adefovir before the combination therapy. In NUC-IFN-treated patients, fibrosis regression was observed at week 96. Baseline HBsAb negativity was independent predictors of HBsAg sero-reversion and recurrence of viremia in IFN treated group. CONCLUSION NUC-IFN and IFN therapies are equally effective in achieving sustained functional cure and fibrosis regression. (ClinicalTrials.gov, Number NCT02336399).
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Affiliation(s)
- Calvin Q Pan
- Center of Liver Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China.,Division of Gastroenterology and Hepatology, Department of Medicine, NYU Langone Health, New York University School of Medicine, New York, NY, USA
| | - Ming-Hui Li
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China.,Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China
| | - Wei Yi
- Department of Obstetrics and Gynecology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Lu Zhang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yao Lu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Hong-Xiao Hao
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Gang Wan
- Department of Medical and Biological Statistics, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Wei-Hua Cao
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xing-Yue Wang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Chong-Ping Ran
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ge Shen
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Shu-Ling Wu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Min Chang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yuan-Jiao Gao
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yao Xie
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China.,Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China
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Mechanism and Antiviral Therapy in Preventing Mother-to-Child Transmission During Pregnancy with Hepatitis B Virus Infection. HEPATITIS MONTHLY 2019. [DOI: 10.5812/hepatmon.81903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Abdul Hafidz MI, Tan SS, Lee YY. Is tenofovir the answer to further preventing mother-to-child transmission of hepatitis B? J R Coll Physicians Edinb 2017; 46:248-250. [PMID: 28504780 DOI: 10.4997/jrcpe.2016.409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- M I Abdul Hafidz
- MI Abdul Hafidz, Fakulti Perubatan Universiti, Teknologi MARA, Tingkat 7, Cluster Medikal, Kampus Sungai Buloh, 47000 Sungai Buloh, Selangor, Malaysia. E-mail
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Ahn HJ, Song MJ, Jang JW, Bae SH, Choi JY, Yoon SK. Treatment Efficacy and Safety of Tenofovir-Based Therapy in Chronic Hepatitis B: A Real Life Cohort Study in Korea. PLoS One 2017; 12:e0170362. [PMID: 28114428 PMCID: PMC5256915 DOI: 10.1371/journal.pone.0170362] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/03/2017] [Indexed: 12/11/2022] Open
Abstract
Background & Aims We evaluated the efficacy and safety of Tenofovir disoproxil fumarate (TDF)-based therapy in naïve and treatment-experienced chronic hepatitis B (CHB) patients for 96 weeks in Korean real life practice. Methods A total of 209 CHB patients with a prescription for TDF at the Seoul and Daejeon St. Mary’s hospitals were enrolled from December 2012 to October 2014. We compared the virological responses and evaluated the renal safety of treatment-naive and treatment-experienced patients. Results An overall complete virological response (CVR) was achieved in 80.4% and 84.6% of patients at weeks 48 and 96, respectively. In a subgroup analysis, CVR at week 96 was present in 88.4%, 75.0%, 75.5%, and 83.3% of participants in the lamivudine-resistant (LAM-R) group, adefovir-resistant (ADV-R) group, multidrug-resistant (MDR) group, and suboptimal response group, respectively. In a multivariate analysis, ADV-R, MDR, hepatitis B virus DNA, and hepatitis B e antigen were independent predictors for CVR. With regard to renal safety, diabetes mellitus, cirrhosis, and an initial low estimated glomerular filtration rate were independent factors affecting creatinine elevation (≥0.5 mg/dL). Moreover, two patients with DM and cirrhosis experienced TDF-related Fanconi syndrome. Conclusions TDF-based therapy demonstrated sustained viral suppression and favorable safety during a 2-year treatment period. The LAM-R and suboptimal response groups showed comparable efficacy to the naïve group, while the ADV-R and MDR groups were significantly associated with a low CVR. Close monitoring of renal safety should be mandatory when treating CHB patients receiving TDF, particularly those with DM and cirrhosis.
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Affiliation(s)
- Hyo Jun Ahn
- Department of Internal Medicine, Division of Hepatology and Gastroenterology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Myeong Jun Song
- Department of Internal Medicine, Division of Hepatology and Gastroenterology, College of Medicine, The Catholic University of Korea, Seoul, Korea
- * E-mail:
| | - Jeong Won Jang
- Department of Internal Medicine, Division of Hepatology and Gastroenterology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Si Hyun Bae
- Department of Internal Medicine, Division of Hepatology and Gastroenterology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong Young Choi
- Department of Internal Medicine, Division of Hepatology and Gastroenterology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seung Kew Yoon
- Department of Internal Medicine, Division of Hepatology and Gastroenterology, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Pan CQ, Duan Z, Dai E, Zhang S, Han G, Wang Y, Zhang H, Zou H, Zhu B, Zhao W, Jiang H. Tenofovir to Prevent Hepatitis B Transmission in Mothers with High Viral Load. N Engl J Med 2016; 374:2324-34. [PMID: 27305192 DOI: 10.1056/nejmoa1508660] [Citation(s) in RCA: 401] [Impact Index Per Article: 50.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Few data are available regarding the use of tenofovir disoproxil fumarate (TDF) during pregnancy for the prevention of mother-to-child transmission of hepatitis B virus (HBV). METHODS In this trial, we included 200 mothers who were positive for hepatitis B e antigen (HBeAg) and who had an HBV DNA level higher than 200,000 IU per milliliter. Participants were randomly assigned, in a 1:1 ratio, to receive usual care without antiviral therapy or to receive TDF (at an oral dose of 300 mg per day) from 30 to 32 weeks of gestation until postpartum week 4; the participants were followed until postpartum week 28. All the infants received immunoprophylaxis. The primary outcomes were the rates of mother-to-child transmission and birth defects. The secondary outcomes were the safety of TDF, the percentage of mothers with an HBV DNA level of less than 200,000 IU per milliliter at delivery, and loss or seroconversion of HBeAg or hepatitis B surface antigen at postpartum week 28. RESULTS At delivery, 68% of the mothers in the TDF group (66 of 97 women), as compared with 2% in the control group (2 of 100), had an HBV DNA level of less than 200,000 IU per milliliter (P<0.001). At postpartum week 28, the rate of mother-to-child transmission was significantly lower in the TDF group than in the control group, both in the intention-to-treat analysis (with transmission of virus to 5% of the infants [5 of 97] vs. 18% [18 of 100], P=0.007) and the per-protocol analysis (with transmission of virus to 0 vs. 7% [6 of 88], P=0.01). The maternal and infant safety profiles were similar in the TDF group and the control group, including birth-defect rates (2% [2 of 95 infants] and 1% [1 of 88], respectively; P=1.00), although more mothers in the TDF group had an increase in the creatine kinase level. After the discontinuation of TDF, alanine aminotransferase elevations above the normal range occurred more frequently in mothers in the TDF group than in those in the control group (45% [44 of 97 women] vs. 30% [30 of 100], P=0.03). The maternal HBV serologic outcomes did not differ significantly between the groups. CONCLUSIONS In a cohort of HBeAg-positive mothers with an HBV DNA level of more than 200,000 IU per milliliter during the third trimester, the rate of mother-to-child transmission was lower among those who received TDF therapy than among those who received usual care without antiviral therapy. (Funded by Gilead Sciences; ClinicalTrials.gov number, NCT01488526.).
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Affiliation(s)
- Calvin Q Pan
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Zhongping Duan
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Erhei Dai
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Shuqin Zhang
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Guorong Han
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Yuming Wang
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Huaihong Zhang
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Huaibin Zou
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Baoshen Zhu
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Wenjing Zhao
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
| | - Hongxiu Jiang
- From the Division of Gastroenterology and Hepatology, Department of Medicine, New York University (NYU) Langone Medical Center, NYU School of Medicine, New York (C.Q.P.); and the Center for Major Infectious Diseases (C.Q.P.) and Artificial Liver Center (Z.P.D., H.B.Z.), Beijing Youan Hospital, Capital Medical University, Beijing, the Division of Liver Diseases (E.H.D.) and the Department of Gynecology and Obstetrics (B.S.Z.), the Fifth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, the Department of Artificial Liver (S.Q.Z.) and Central Laboratory (W.J.Z.), Hepatobiliary Disease Hospital of Ji Lin Province, Changchun, the Department of Gynecology and Obstetrics, the Second Affiliated Hospital of the Southeast University, Nanjing (G.-R.H., H.-X.J.), the Institute for Infectious Diseases, Southwest Hospital, the Third Military Medical University, Chongqing (Y.W.), and the Department of Medicine, Nanyang Center Hospital, Nanyang, Henan (H.H.Z.) - all in China
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Efficacy and safety of tenofovir in nucleos(t)ide-naïve patients with genotype C chronic hepatitis B in real-life practice. Int J Clin Pharm 2015; 37:1228-34. [PMID: 26364195 DOI: 10.1007/s11096-015-0193-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 09/05/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND Tenofovir disoproxil fumarate (TDF) has demonstrated potent antiviral activity against hepatitis B virus (HBV) in clinical trials. Although its efficacy has been demonstrated in Caucasian populations, TDF has not previously been studied in Korean patients who present the predominance of HBV genotype C and of vertical or perinatal transmission. OBJECTIVE The aim of this study was to evaluate the efficacy of TDF in Korean chronic hepatitis B (CHB) patients in real-life practice, and to determine the clinical variables that contribute to virologic response. SETTING Large academic medical center in Korea. METHOD We retrospectively investigated the efficacy of TDF treatment for more than 6 months in 151 nucleos(t)ide-naïve CHB patients. MAIN OUTCOME MEASURE The primary endpoint was a virologic response (VR), defined as an HBV DNA level of <12 IU/mL. Secondary endpoints were rates of alanine aminotransaminase (ALT) normalization, hepatitis B e antigen (HBeAg) seroconversion, virologic breakthrough, and safety. RESULTS All patients were the genotype C2. The median duration of TDF treatment was 13 months (range 7-18 months). Ninety-two (61.0 %) patients were HBeAg positive. The mean pre-treatment HBV DNA level was 6.34 ± 1.42 log10 IU/mL. Among the 131 patients with elevated ALT levels at baseline, 128 (97.7 %) patients achieved ALT normalization during TDF treatment. VR was achieved in 97 (64.2 %) patients. The cumulative rates of VR at 6, 9, 12, and 18 months were 47.0, 59.4, 67.9, and 69.3 %, respectively. Among the 92 HBeAg-positive patients, 14 (15.2 %) patients achieved HBeAg seroconversion. In multivariate analysis, absolute HBV DNA levels at baseline (P < 0.001; OR 0.529; 95 % CI 0.560-0.744) and HBeAg positivity (P = 0.015; OR 0.731; 95 % CI 0.615-0.869) were significantly associated with VR. Virologic breakthrough was observed in four patients. These four patients had poor adherence to TDF. Most of the adverse events were mild in severity. No significant changes were observed in serum creatinine and phosphorus levels. CONCLUSIONS TDF was effective and well tolerated in Korean genotype C CHB patients in real life practice, consistent with larger registration trials. The absolute HBV DNA levels at baseline and HBeAg positivity were significantly associated with VR.
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Pan CQ, Chan S, Trinh H, Yao A, Bae H, Lou L. Similar efficacy and safety of tenofovir in Asians and non-Asians with chronic hepatitis B. World J Gastroenterol 2015; 21:5524-5531. [PMID: 25987775 PMCID: PMC4427674 DOI: 10.3748/wjg.v21.i18.5524] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 09/16/2014] [Accepted: 11/19/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To compare the efficacy and safety of tenofovir disoproxil fumarate (TDF) in Asian and non-Asian chronic hepatitis B (CHB) patients.
METHODS: The efficacy and safety of the initial 48 wk of treatment with TDF was compared in a post-hoc analysis of combined data from 217 Asians and 299 non-Asians included in Studies 102 and 103 and a post-approval, open-label trial (Study 123). Patient groups were compared according to baseline hepatitis B e antigen (HBeAg) status and viral load. The main outcome measures included the proportion of patients who achieved a hepatitis B virus (HBV) DNA level < 400 copies/mL at Week 48 of treatment. Secondary measures included: HBV DNA and alanine aminotransaminase (ALT) levels over time; proportion of patients with normal ALT levels; proportion of patients with HBeAg loss/seroconversion and proportion of patients with hepatitis B surface antigen loss/seroconversion; changes in liver histology. Safety and tolerability were evaluated by the occurrence of adverse events (AEs), serious AEs, laboratory abnormalities, discontinuation of the study drug due to AEs, or death. The primary efficacy and safety analysis set included all patients who were randomly assigned to treatment and received at least one dose of study drug.
RESULTS: At week 48, similar proportions of Asians and non-Asians reached HBV DNA < 400 copies/mL (96% of Asian and 97% of non-Asian patients with HBeAg-negative CHB and 83% of Asian and 79% of non-Asian patients with HBeAg-positive CHB had HBV DNA) and normal ALT (78% of Asian and 81% of non-Asian patients with HBeAg-negative CHB and 71% of Asian and 74% of non-Asian patients with HBeAg-positive CHB had normal ALT). On-treatment HBV DNA decline rates were similar between Asians and non-Asians regardless of baseline HBeAg status and viral load. HBV DNA decline during the first four weeks was 2.9 log10 copies/mL in HBeAg-negative Asians and non-Asians, and in HBeAg-positive non-Asians, and 3.1 log10 copies/mL in HBeAg-positive Asians. HBeAg loss and seroconversion was achieved in 14% of Asians vs 26% and 24%, respectively, in non-Asians. Liver histology improved in 77.2% of Asians and 71.5% of non-Asians. No resistance to TDF developed. No renal safety signals were observed.
CONCLUSION: TDF demonstrated similar viral suppression, normalization of ALT, improvements in liver fibrosis, and no detectable resistance in Asian and non-Asian patients regardless of baseline HBeAg status.
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Corsa AC, Liu Y, Flaherty JF, Mitchell B, Fung SK, Gane E, Miller MD, Kitrinos KM. No resistance to tenofovir disoproxil fumarate through 96 weeks of treatment in patients with lamivudine-resistant chronic hepatitis B. Clin Gastroenterol Hepatol 2014; 12:2106-12.e1. [PMID: 24929235 DOI: 10.1016/j.cgh.2014.05.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 05/28/2014] [Accepted: 05/30/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS A recent study compared the efficacy of tenofovir disoproxil fumarate (TDF) vs the combination of emtricitabine and TDF (FTC/TDF) in patients with lamivudine-resistant chronic hepatitis B who were treated for as long as 96 weeks. We report findings from resistance analyses conducted for this study. METHODS Two hundred eighty patients with chronic hepatitis B virus (HBV) infection and lamivudine resistance (confirmed by INNO-LiPA Multi-DR) were randomly assigned (1:1) to groups treated with TDF or FTC/TDF. The HBV reverse transcriptase domain from the polymerase gene from all patients was sequenced at baseline and from 18 viremic patients at week 96 or early discontinuation. RESULTS At screening for the efficacy study, 99% of patients were found to have lamivudine resistance. Prior exposure to entecavir or entecavir resistance was observed in 12% of patients, and 22% of patients had been previously exposed to adefovir; 1.8% were resistant to adefovir. Only 18 patients (6.4%) qualified for sequence analysis, including 1 patient who experienced virologic breakthrough and 17 with persistent viremia. Six of these patients did not have any sequence changes from baseline in HBV reverse transcriptase (33%), and sequence analysis could not be performed for 5 patients (28%). In 2 patients who qualified for phenotypic analysis (1 given TDF and 1 given FTC/TDF), no resistance to TDF was observed. Neither previous treatment exposure nor resistance to entecavir or adefovir affected viral kinetics. However, the mean baseline level of HBV DNA was significantly higher in viremic patients than in patients with viral suppression by week 96 (7.28 log10 IU/mL vs 5.62 log10 IU/mL; P = .0003). CONCLUSIONS No resistance to TDF was detected through 96 weeks of treatment in patients with lamivudine-resistant chronic hepatitis B. Prior treatment or resistance to entecavir or adefovir did not affect viral kinetics through 96 weeks. No additional benefit was observed with the addition of emtricitabine vs TDF monotherapy. ClinicalTrial.gov number: NCT00737568.
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Affiliation(s)
- Amoreena C Corsa
- Department of Research and Development, Gilead Sciences, Inc, Foster City, California.
| | - Yang Liu
- Department of Research and Development, Gilead Sciences, Inc, Foster City, California
| | - John F Flaherty
- Department of Research and Development, Gilead Sciences, Inc, Foster City, California
| | - Ben Mitchell
- Department of Research and Development, Gilead Sciences, Inc, Foster City, California
| | - Scott K Fung
- Divisions of Gastroenterology and General Internal Medicine, Toronto General Hospital, Toronto, Ontario, Canada
| | - Edward Gane
- New Zealand Liver Transplant Unit, Auckland City Hospital, Auckland, New Zealand
| | - Michael D Miller
- Department of Research and Development, Gilead Sciences, Inc, Foster City, California
| | - Kathryn M Kitrinos
- Department of Research and Development, Gilead Sciences, Inc, Foster City, California
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Ninomiya M, Kondo Y, Niihori T, Nagashima T, Kogure T, Kakazu E, Kimura O, Aoki Y, Matsubara Y, Shimosegawa T. Sequential analysis of amino acid substitutions with hepatitis B virus in association with nucleoside/nucleotide analog treatment detected by deep sequencing. Hepatol Res 2014; 44:678-84. [PMID: 23701433 DOI: 10.1111/hepr.12168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/14/2013] [Accepted: 05/20/2013] [Indexed: 02/08/2023]
Abstract
Taking nucleoside/nucleotide analogs is a major antiviral therapy for chronic hepatitis B infection. The problem with this treatment is the selection for drug-resistant mutants. Currently, identification of genotypic drug resistance is conducted by molecular cloning sequenced by the Sanger method. However, this methodology is complicated and time-consuming. These limitations can be overcome by deep sequencing technology. Therefore, we performed sequential analysis of the frequency of drug resistance in one individual, who was treated with lamivudine on-and-off therapy for 2 years, by deep sequencing. The lamivudine-resistant mutations at rtL180M and rtM204V and the entecavir-resistant mutation at rtT184L were detected in the first subject. The lamivudine- and entecavir-resistant strain was still detected in the last subject. However, in the deep sequencing analysis, rt180 of the first subject showed a mixture in 76.9% of the methionine and in 23.1% of the leucine, and rt204 also showed a mixture in 69.0% of the valine and 29.8% of the isoleucine. During the treatment, the ratio of resistant mutations increased. At rt184, the resistant variants were detectable in 58.7% of the sequence, with the replacement of leucine by the wild-type threonine in the first subject. Gradually, entecavir-resistant variants increased in 82.3% of the leucine in the last subject. In conclusion, we demonstrated the amino acid substitutions of the serial nucleoside/nucleotide analog resistants. We revealed that drug-resistant mutants appear unchanged at first glance, but actually there are low-abundant mutations that may develop drug resistance against nucleoside/nucleotide analogs through the selection of dominant mutations.
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Affiliation(s)
- Masashi Ninomiya
- Division of Gastroenterology, Tohoku University Hospital, Sendai, Japan
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Pan CQ, Trinh H, Yao A, Bae H, Lou L, Chan S. Efficacy and safety of tenofovir disoproxil fumarate in Asian-Americans with chronic hepatitis B in community settings. PLoS One 2014; 9:e89789. [PMID: 24594870 PMCID: PMC3942404 DOI: 10.1371/journal.pone.0089789] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 01/22/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND AIMS Chronic hepatitis B (CHB) disproportionately affects the Asian-American population in the USA. Tenofovir disoproxil fumarate (TDF) has demonstrated potent antiviral activity in clinical trials, but data in Asian-Americans from community studies are lacking. METHODS Adult Asian-American patients with CHB from private medical and community-based practices were prospectively enrolled and treated with open-label TDF 300 mg once daily in a single-arm study for 48 weeks. After Week 48, patients had the option to transition to commercially available CHB therapy. The primary efficacy endpoint was hepatitis B virus (HBV) DNA <400 copies/mL at Week 48. Secondary endpoints were safety and tolerability, serologic and biochemical responses, liver fibrosis by FibroTest, and the development of drug-resistant mutations. RESULTS Of the 90 patients enrolled, 53 (58%) were hepatitis B e antigen (HBeAg)-positive at baseline. At Week 48, 74 patients (82% overall; 70% HBeAg-positive and 100% HBeAg-negative) had HBV DNA <400 copies/mL. Six (12%) HBeAg-positive patients achieved HBeAg loss/seroconversion. The percentage of patients with alanine aminotransferase in the normal range increased from 26% at baseline to 66% at Week 48. The percentage of patients with F0 (no or minimal) fibrosis by FibroTest increased from 48% to 51%, and those with F4 (severe) fibrosis decreased from 4% to 1%. No resistance to TDF developed. Treatment was well tolerated. Most adverse events were mild in severity and considered unrelated to study drug. CONCLUSIONS TDF is effective and well tolerated in Asian-American CHB patients in community clinic-based settings, consistent with larger registration trials. Improvement in liver fibrosis was seen in a proportion of patients. No resistance to TDF developed through 48 weeks of treatment. TRIAL REGISTRATION Clinicaltrial.gov identifier NCT00736190.
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Affiliation(s)
- Calvin Q. Pan
- Division of Gastroenterology, Department of Medicine, New York University Langone Medical Center, New York University School of Medicine, New York, United States of America
| | - Huy Trinh
- San Jose Gastroenterology, San Jose, California, United States of America
| | - Alan Yao
- AE & LY Medical Associates, Flushing, New York, United States of America
| | - Ho Bae
- Asian Pacific Liver Center, St. Vincent Medical Center, Los Angeles, California, United States of America
| | - Lillian Lou
- Nexus Development, Palo Alto, California, United States of America
| | - Sing Chan
- Sing Chan Endoscopy, Flushing, New York, United States of America
- * E-mail:
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Zhang H, Pan CQ, Pang Q, Tian R, Yan M, Liu X. Telbivudine or lamivudine use in late pregnancy safely reduces perinatal transmission of hepatitis B virus in real-life practice. Hepatology 2014; 60:468-476. [PMID: 25227594 PMCID: PMC4282428 DOI: 10.1002/hep.27034] [Citation(s) in RCA: 140] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 12/31/2013] [Indexed: 12/12/2022]
Abstract
Little observational data exist describing telbivudine (LdT) or lamivudine (LAM) use in late pregnancy for preventing hepatitis B mother-to-child transmission (MTCT) in real-world settings. During the period of January 2009 to March 2011, we enrolled hepatitis B e antigen-positive mothers with HBV DNA >6 log10 copies/mL in China. At gestation week 28, the mothers received LdT or LAM until postpartum week 4 or no treatment (NTx). The study endpoints were the safety of LdT/LAM use and MTCT rates. Of the 700 mothers enrolled, 648 (LdT/LAM/NTx = 252/51/345) completed the 52-week study with 661 infants (LdT/LAM/NTx = 257/52/352). On treatment, viral rebound occurred in 1.6% of mothers, all resulting from medication noncompliance. There was no genotypic mutation detected. At delivery, significantly lower HBV DNA levels were noted in mothers who received LdT or LAM versus NTx. Alanine aminotransferase flares were observed in 17.1% of treated mothers versus 6.3% of untreated mothers (P < 0.001). At birth, hepatitis B surface antigen (HBsAg) was detected in 20% and 24% of newborns in the treated and NTx groups, respectively. At week 52, an intention-to-treat analysis indicated 2.2% (95% confidence [CI]: 0.6-3.8) of HBsAg+ infants from the treated group versus 7.6% (95% CI: 4.9-10.3) in the NTx group (P = 0.001) and no difference of HBsAg+ rate between infants in the LdT and LAM groups (1.9% vs. 3.7%; P = 0.758). On-treatment analysis indicated 0% of HBsAg+ infants in the treated group versus 2.84% in the NTx group (P = 0.002). There were no differences for gestational age or infants' height, weight, Apgar scores, or birth defect rates between infants from the treated and untreated groups. Conclusions: LdT and LAM use in late pregnancy for highly viremic mothers was equally effective in reducing MTCT. The treatment was well tolerated with no safety concerns identified. (Hepatology 2014).
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Affiliation(s)
- Hua Zhang
- Department of Obstetrics and Gynecology, Beijing Youan Hospital, Capital Medical University, Beijing, China
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Lei J, Wang Y, Wang LL, Zhang SJ, Chen W, Bai ZG, Xu LY. Profile of hepatitis B virus resistance mutations against nucleoside/nucleotide analogue treatment in Chinese patients with chronic hepatitis B. Virol J 2013; 10:313. [PMID: 24160943 PMCID: PMC4231392 DOI: 10.1186/1743-422x-10-313] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 10/22/2013] [Indexed: 12/21/2022] Open
Abstract
Aim Antiviral drug-resistant HBV mutants are complex and currently partly understood. This study was performed to analyze the profile of hepatitis B virus (HBV) resistance mutations against nucleos(t)ide analogues (NAs) in patients with chronic hepatitis B (CHB). Methods This was a population-based cross-sectional study. Serum samples of 179 patients with virological breakthrough undergoing different NAs treatment were obtained between January 2008 and December 2012. The HBV reverse transcriptase region was sequenced and the following NAs-resistant changes including rtL80, rtI169, rtV173, rtL180, rtA181, rtT184, rtA194, rtS202, rtM204, rtN236 and rtM250 were analyzed. Results In this cohort, 21.2% (38/179) were genotypes B and 78.8% (141/179) were genotypes C; and 89.4% (160/179) of them detected NAs-resistant mutations. The prevalence of HBV mutations at rtM204 was 93.0% (106/114) in patients with lamivudine (LAM) or telbivudine (LdT)-based therapies, and that of rtN236 mutations was 76.1% (35/46) in patients with adefovir dipivoxil (ADV)-based therapies. Among LAM/LdT based therapies, HBV rtM204I was significantly associated with HBV rtL80I/V mutations [rtM204I+rtL80I/V (50.0%, 32/64) vs. rtM204V+rtL80I/V (27.3%,9/33), P=0.032]; while the HBV rtM204V mutations was significantly associated with HBV rtL180M mutations [rtM204V+rtL180M (100%, 33/33) vs. rtM204I+rtL180M (60.9%, 39/64), P<0.001]. Additionally, HBV rtA181 mutations were observed in 19.3% (22/114) of patients with LAM/LdT-based therapy and 23.9% (11/46) of patients with ADV-based therapy. Conclusions Majority of virological breakthrough is associated with NAs-resistant HBV, and the mutation patterns of NAs-resistant HBV are complicated in real clinical practice.
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Affiliation(s)
| | | | | | | | | | | | - Lv-Ye Xu
- Department of Infectious Diseases, Wuhan Neurologist Hospital and General Hospital of The Yangtze River Shipping, Wuhan, China.
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