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Veracruz N, Gish RG, Cheung R, Chitnis AS, Wong RJ. Global incidence and mortality of hepatitis B and hepatitis C acute infections, cirrhosis and hepatocellular carcinoma from 2010 to 2019. J Viral Hepat 2022; 29:352-365. [PMID: 35274406 DOI: 10.1111/jvh.13663] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 02/15/2022] [Indexed: 12/21/2022]
Abstract
Hepatitis B virus (HBV) and hepatitis C virus (HCV) contribute to significant healthcare burden globally. We aim to provide an updated and comprehensive analysis of global trends in the incidence and mortality of HBV and HCV related acute infections, cirrhosis and hepatocellular carcinoma (HCC). Estimates of annual cause-specific disease incidence and mortality for HBV and HCV were analysed using the 2010-2019 Global Burden of Diseases, Injuries and Risk Factors Study database. Three distinct disease states were evaluated: acute infections, cirrhosis and HCC. Age-standardized disease incidence and mortality were presented per 100,000 population and stratified by age, sex, year and 21 world regions. From 2010 to 2019, overall incidence of acute HBV declined by 19.3% (95% CI 4.1-32.0, p < .05) and HBV cirrhosis declined by 15.0% (95% CI 9.8-20.7, p < .05). Incidence of HCV cirrhosis increased by 5.6% (95% CI 0.3-10.2, p < .05) and HCV HCC remained stable. Incidence of acute HCV declined until 2015, after which it began increasing. From 2010 to 2019, overall mortality for HBV cirrhosis and HCV cirrhosis declined, whereas mortality for acute infections and HCC remained stable. Major differences in HBV and HCV incidence and mortality trends were observed when stratified by world regions. In conclusion, while our analyses of global trends in HBV and HCV incidence and mortality demonstrate encouraging trends, disparities in disease epidemiology were observed across world regions. These observations will identify regions and populations where greater focus and resources are needed to continue progressing towards viral hepatitis elimination.
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Affiliation(s)
| | - Robert G Gish
- Hepatitis B Foundation, Doylestown, Pennsylvania, USA
| | - Ramsey Cheung
- Division of Gastroenterology and Hepatology, Veterans Affairs Palo Alto Healthcare System, Palo Alto, California, USA.,Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
| | - Amit S Chitnis
- Tuberculosis Section, Division of Communicable Disease Control and Prevention, Alameda County Public Health Department, San Leandro, California, USA
| | - Robert J Wong
- Division of Gastroenterology and Hepatology, Veterans Affairs Palo Alto Healthcare System, Palo Alto, California, USA.,Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
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2
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Chaabna K, Dashzeveg D, Shagdarsuren T, Al-Rifai RH. Prevalence and genotype distribution of hepatitis C virus in Mongolia: Systematic review and meta-analysis. Int J Infect Dis 2021; 105:377-388. [PMID: 33601031 DOI: 10.1016/j.ijid.2021.02.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE To characterize hepatitis C virus (HCV) infection epidemiology in Mongolia. METHOD Publications on HCV antibody (Ab) and RNA prevalence, and/or genotypes/subtypes were systematically reviewed and reported following PRISMA guidelines. Random-effects meta-analyses and age adjustments were conducted to estimate the prevalence of Mongolians exposed to HCV (pooled HCV-Ab prevalence) by time period, sex, and at-risk populations; and to estimate the prevalence of chronically-infected HCV individuals. RESULTS The national pooled HCV-Ab prevalence was 12.3% in 2000-2009 and 11.2% in 2013. Sex-specific pooled prevalence appeared higher among females than males (14.0% versus 6.8%). Age-specific pooled prevalence significantly increased from 3.7% among children (aged 0-10 years) to 34.1% among people aged ≥50 years (p < 0.001). Among the adult general population (low-risk population), the national age-adjusted prevalence was 8.1%. Age-adjusted chronic infection prevalence in adults was 6.0%. Among healthcare workers, pooled prevalence was 18.0%. Among patients with liver diseases, pooled prevalence was 53.7%. Among individuals engaging in risky sexual behaviors, pooled prevalence was 11.1%. The identified circulating genotypes/subtypes were 1b (58.0%), 2a (21.7%), and 1a (20.2%). CONCLUSION The national HCV prevalence in Mongolia appeared to be among the highest worldwide. Higher prevalence in the clinical setting indicated potential ongoing HCV iatrogenic and occupational transmission. Additionally, HCV transmission in community settings should be investigated.
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Affiliation(s)
- Karima Chaabna
- Institute for Population Health, Weill Cornell Medicine-Qatar, Doha, Qatar.
| | - Delgermaa Dashzeveg
- Global Health Entrepreneurship Department, Tokyo Medical and Dental University, Tokyo, Japan; Head of Public Health Policy Implementation and Coordination, National Centre for Public Health, Ministry of Health, Mongolia
| | - Tserendulam Shagdarsuren
- Head of Public Health Policy Implementation and Coordination, National Centre for Public Health, Ministry of Health, Mongolia; Department of Mongolia and Healthy City Network of Mongolia, Mongolia
| | - Rami H Al-Rifai
- Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
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3
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Udompap P, Tanwandee T, Gani R. Affordability of Antiviral Therapy in Asia-Pacific Countries and Its Impact on Public Health Outcomes. Clin Liver Dis (Hoboken) 2021; 16:249-253. [PMID: 33489097 PMCID: PMC7805294 DOI: 10.1002/cld.977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 02/04/2023] Open
Affiliation(s)
- Prowpanga Udompap
- Department of MedicineUniversity of MinnesotaMinneapolisMN,Division of GastroenterologyDepartment of MedicineFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Tawesak Tanwandee
- Division of GastroenterologyDepartment of MedicineFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Rino Gani
- Hepatobiliary DivisionDepartment of Internal MedicineFaculty of MedicineUniversity of IndonesiaCipto Mangunkusumo HospitalJakartaIndonesia
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4
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Yu ML, Tsai WL, Chu CJ, Kao JH. Characteristics of patients with hepatitis C virus infection and antiviral treatment initiation in Taiwan: The MOSAIC study. Kaohsiung J Med Sci 2020; 37:245-252. [PMID: 33089964 DOI: 10.1002/kjm2.12317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/14/2020] [Accepted: 09/27/2020] [Indexed: 11/06/2022] Open
Abstract
Hepatitis C virus (HCV) infection is the leading cause of chronic liver diseases worldwide. Monitoring its epidemiology, diagnosis, and treatment patterns are important for the management of patients with chronic HCV infection from both individual and public health perspectives. The MOSAIC study was an observational study conducted in 20 countries, including Taiwan; its primary objective was to describe epidemiology and treatment initiation patterns in patients seeking HCV care. Of the 111 chronic HCV patients enrolled from Taiwan, 58 (52.3%) had not previously received treatment. HCV genotype 1 was reported in 58 (52.3%) patients, of whom the majority (n = 47; 81.0%) were identified as having subtype 1b. Sixty-two (55.9%) patients had HCV RNA level > 800 000 IU/mL. Liver cirrhosis was found in 35 (29.3%) patients and was more prevalent in patients who previously received treatment (71.0%). Interferon (IFN)-based treatment was started within 12 weeks from study inclusion in 12 (10.8%) patients, of whom 11 (91.7%) who had not previously received treatment. Anti-HCV treatment was not recommended by physicians in 70 (71.4%) and was refused by 23 (23.5%) patients. The MOSAIC study provides data on the epidemiology of HCV infection and IFN-based treatment decision patterns in Taiwan. Further studies are needed to observe the impact of IFN-free treatment on the treatment selection pattern.
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Affiliation(s)
- Ming-Lung Yu
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,School of Medicine and Hepatitis Research Center, College of Medicine, and Center for Cancer Research and Center for Liquid Biopsy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wei-Lun Tsai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Chi-Jen Chu
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jia-Horng Kao
- Department of Internal Medicine and Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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5
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Li H, Yang Z, Zhang S, Xu L, Wei Y, Jiang J, Caro L, Feng HP, McCrea JB, Li M, Xie S, Wang J, Zhao XM, Mu S. A Single- and Multiple-Dose Study to Evaluate the Pharmacokinetics of Fixed-Dose Grazoprevir/Elbasvir in Healthy Chinese Participants. Clin Pharmacol 2020; 12:1-11. [PMID: 32104104 PMCID: PMC7024785 DOI: 10.2147/cpaa.s224662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 12/11/2019] [Indexed: 01/03/2023] Open
Abstract
Purpose The burden of hepatitis C virus infection is particularly high in Asian countries, and new treatments are urgently needed. The purpose of this study was to characterize the pharmacokinetics (PK) and safety of the fixed-dose combination tablet of elbasvir/grazoprevir in healthy Chinese participants. Patient and Methods In this Phase I, single-site, open-label, 3-period study in healthy Chinese adults, participants received a single tablet of elbasvir 50 mg/grazoprevir 100 mg, followed by blood sampling for up to 96 hrs (http://www.chinadrugtrials.org.cn/ CTR20160034; Protocol PN071). Participants then received 1 tablet daily for 10 days, followed by a minimum 10-day washout, after which participants received a single dose of 2 tablets (elbasvir 100 mg/grazoprevir 200 mg). Elbasvir and grazoprevir PK were assessed following single and multiple doses. Safety and tolerability were also evaluated. Results Twelve participants (50% male) were enrolled in and completed the study. Following single-dose oral administration of elbasvir 50 mg/grazoprevir 100 mg or elbasvir 100 mg/grazoprevir 200 mg, the median Tmax was 3–4 hrs and elimination half-life was 18 hrs (elbasvir) and 30 hrs (grazoprevir). Multiple-dose administration resulted in AUC0–24 accumulation ratios of 1.58 (elbasvir) and 2.35 (grazoprevir). Both elbasvir 50 mg/grazoprevir 100 mg and 100 mg/200 mg regimens were generally well tolerated. Conclusion Single-dose administration of elbasvir 50 mg/grazoprevir 100 mg or 100 mg/200 mg and once-daily administration of elbasvir 50 mg/grazoprevir 100 mg for 10 days has been adequately characterized, with PK values within the expected range, and was generally well tolerated in healthy Chinese male and female participants.
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Affiliation(s)
- Haiyan Li
- Drug Clinical Trial Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Zhenhua Yang
- Drug Clinical Trial Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Shuang Zhang
- Drug Clinical Trial Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Lin Xu
- Drug Clinical Trial Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Yudong Wei
- Drug Clinical Trial Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Jun Jiang
- Department of Infectious Diseases, MSD (China) R&D, Beijing, People's Republic of China
| | - Luzelena Caro
- Department of Infectious Diseases, Merck & Co., Inc., Kenilworth, NJ, USA
| | - Hwa-Ping Feng
- Department of Infectious Diseases, Merck & Co., Inc., Kenilworth, NJ, USA
| | | | - Meng Li
- Department of Infectious Diseases, MSD (China) R&D, Beijing, People's Republic of China
| | - Shuang Xie
- Department of Infectious Diseases, MSD (China) R&D, Beijing, People's Republic of China
| | - Jiangdian Wang
- Department of Infectious Diseases, MSD (China) R&D, Beijing, People's Republic of China
| | - Xu Min Zhao
- Department of Infectious Diseases, MSD (China) R&D, Beijing, People's Republic of China
| | - Shengmei Mu
- Department of Infectious Diseases, MSD (China) R&D, Beijing, People's Republic of China
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Younossi ZM, Henry L, P Ong J, Tanaka A, Eguchi Y, Mizokami M, Lim YS, Dan YY, Yu ML, Stepanova M. Systematic review with meta-analysis: extrahepatic manifestations in chronic hepatitis C virus-infected patients in East Asia. Aliment Pharmacol Ther 2019; 49:644-653. [PMID: 30761562 DOI: 10.1111/apt.15131] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 08/21/2018] [Accepted: 12/16/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Although the prevalence of extrahepatic manifestations of chronic hepatitis C virus (HCV) infection has been reported from Western countries, their prevalence in East Asian countries is not well known. AIM To perform a systematic review to quantify the prevalence of selected extrahepatic manifestations of HCV among patients from East Asia. METHODS Medline, CINAHL, EMBASE, Cochrane and country-specific databases were reviewed according to standard guidelines for meta-analyses. Only articles with patients from East Asian countries were included. RESULTS After review, 34 articles were selected (Japan = 9; China = 5, Korea = 3, Taiwan = 16, multiple countries = 1) with 646 228 subjects, 66 436 with HCV. Mean age for HCV-infected patients was 56 years (range 41-72 years), 50% were male (range 26%-73%). The pooled prevalence of type 2 diabetes in East Asian HCV patients was 19.0% (95% confidence interval 15.6%-22.9%) (n = 19 studies) with an increased risk when compared to non-HCV: odds ratio (OR) 1.58 (1.28-1.94). The prevalence of chronic kidney disease in HCV was 9.2% (5.0%-16.2%) (n = 7 studies), also with a significantly increased risk: OR=1.98 (1.41-2.77). Pooled prevalence of cardiovascular disease in HCV was 8.6% (3.5%-19.9%) (n = 6 studies), also with an increased risk: OR = 1.55 (1.21-1.98). The prevalence of lichen planus in HCV was 8.9% (3.6%-20.6%) (n = 6 studies) while the prevalence of rheumatoid arthritis was 4.5% (0.6%-25.7%) (n = 4 studies). CONCLUSIONS These data show increased risk of developing extrahepatic manifestations in East Asian patients with HCV. Both hepatic and extrahepatic manifestations of the infection should be used to accurately determine the total burden of the disease in the region.
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Yang RF, Liu Y, Zhao CY, Ding YX, Chen Y, Wang YD, Duan ZP. A novel point-of-care oral anti-HCV assay: Is it reliable for screening hepatitis C virus infection in the era of direct-acting antivirals? PLoS One 2019; 14:e0211795. [PMID: 30753207 PMCID: PMC6372169 DOI: 10.1371/journal.pone.0211795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 01/21/2019] [Indexed: 02/08/2023] Open
Abstract
Recent advance in the direct-acting antivirals (DAAs) offers the potentials to eradicate hepatitis C virus (HCV) worldwide and makes universal screening more urgent. A point-of-care (POC) oral anti-HCV assay, the Fortune assay, was developed and its performance was evaluated. Individuals with or without HCV infection were recruited in three Centers. Paired oral and serum samples were tested using the Fortune and InTec anti-HCV assays. The Kehua serum anti-HCV assay served as a supplemental test to verify the discordant results. Some oral samples were also tested using the OraQuick anti-HCV assay. Furthermore, the Fortune assay results were compared with the documented RNA results. Sensitivity, specificity, and accuracy of the Fortune assay was 93.11%, 98.48%, and 96.58%, respectively (n = 1,022). Consistency between the Fortune and OraQuick assays was 96.35% (264/274); the Fortune assay detected additional 8 positive oral samples missed by the OraQuick assay. The Fortune assay demonstrated a 97.46% (115/118) positivity among the viremic patients. Furthermore, its sensitivity was HCV genotype independent. In conclusion, the Fortune assay was highly specific and accurate. It had comparable sensitivity as the serum assays for the diagnosis of active HCV infection. It provides a completely non-invasive and reliable tool for HCV screening in the DAA era.
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Affiliation(s)
- Rui-Feng Yang
- Peking University People’s Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing, China
| | - Yan Liu
- Peking University People’s Hospital, Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Beijing, China
| | - Cai-Yan Zhao
- Infectious Diseases Department, the Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ya-Xing Ding
- Tianjin Center for Diseases Control and Prevention, Tianjin, China
| | - Yu Chen
- Artificial Liver Center, Beijing You’an Hospital, Capital Medical University, Beijing, China
| | - Ya-Dong Wang
- Infectious Diseases Department, the Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhong-Ping Duan
- Artificial Liver Center, Beijing You’an Hospital, Capital Medical University, Beijing, China
- * E-mail:
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8
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Soh BYM, Kumar R, Ekstrom VSM, Lin CYH, Thangaraju SD, Tan HH, Chan KP, Choong LHL, Teo D, Chow WC. Prevalence of hepatitis C virus infection and the IL28B genotype polymorphism among blood donors and high-risk populations. Singapore Med J 2019; 60:34-39. [PMID: 29926111 PMCID: PMC6351688 DOI: 10.11622/smedj.2018078] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION To study the prevalence of hepatitis C virus (HCV) infection in blood donor (BD), haemodialysis (HD) and intravenous drug user (IVDU) populations in Singapore and assess the IL28B polymorphism if HCV positive. METHODS The BD population were healthy volunteers, the HD population were patients who were on haemodialysis for at least six months of follow-up between January 2009 and December 2014. IVDU population was from inmates at halfway houses who consented. RESULTS Between 2011 and 2014, of 161,658 individuals who underwent screening prior to blood donation, 95 (0.059%) were positive for HCV. Of the 42 sera available, common genotypes (GTs) were GT-3 (47.6%) and GT-1 (31.0%). Of 1,575 HD patients, 2.2% were anti-HCV positive. The HCV GT distribution was HCV GT-1 (32.4%), HCV GT-3 (20.5%) and GT-6 (8.8%). 83 halfway house inmates were screened. Of the 47 IVDUs, 36.2% were anti-HCV positive with predominant GT-3 (%). IL28B polymorphism was noted to be CC predominantly 85.3%. CONCLUSION Prevalence of HCV infection has decreased in both the BD and HD populations. However, it remains high in the IVDU population. GT-1 remains the most common in the HD population; however, GT-3 infection is now more common among the BD population in Singapore. IL28B - CC is the predominant variant among the HCV-infected individuals in Singapore.
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Affiliation(s)
- Benjy Yi-Min Soh
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
- Duke-NUS Medical School, Singapore
| | - Rajneesh Kumar
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
- Duke-NUS Medical School, Singapore
| | - Victoria Sze-Min Ekstrom
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
- Duke-NUS Medical School, Singapore
| | - Clement Yi-Hao Lin
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
| | - Sobhana D/O Thangaraju
- Duke-NUS Medical School, Singapore
- Department of Renal Medicine, Singapore General Hospital, Singapore
| | | | - Kwai Peng Chan
- Duke-NUS Medical School, Singapore
- Department of Microbiology, Singapore General Hospital, Singapore
| | - Lina Hui Lin Choong
- Duke-NUS Medical School, Singapore
- Department of Renal Medicine, Singapore General Hospital, Singapore
| | - Diana Teo
- Health Sciences Authority, Singapore
| | - Wan Cheng Chow
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
- Duke-NUS Medical School, Singapore
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Wei B, Ji F, Yeo YH, Ogawa E, Zou B, Stave CD, Dang S, Li Z, Furusyo N, Cheung RC, Nguyen MH. Real-world effectiveness of sofosbuvir plus ribavirin for chronic hepatitis C genotype 2 in Asia: a systematic review and meta-analysis. BMJ Open Gastroenterol 2018; 5:e000207. [PMID: 30002863 PMCID: PMC6038840 DOI: 10.1136/bmjgast-2018-000207] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 06/02/2018] [Accepted: 06/08/2018] [Indexed: 12/14/2022] Open
Abstract
Background Sofosbuvir plus ribavirin (SOF+RBV) for 12 weeks is the standard treatment for chronic hepatitis C (CHC) genotype 2 (GT2) in most of Asia despite availability of new CHC medications. SOF-RBV real-world effectiveness has only been reported in small and/or single-centre studies. Our goal was to determine the real-world effectiveness of 12-week SOF+RBV therapy for CHC GT2 in Asia. Methods A systematic search on PubMed and Embase was conducted through 30 June 2017. We identified full articles and conference proceedings of at least 10 adult patients with CHC GT2 treated with SOF+RBV for 12 weeks under real-world setting in Asia. Results A total of 2208 patients from 13 studies were included. The pooled sustained virological response 12 weeks after the end of treatment (SVR12) was 95.8% (95% CI 94.6% to 96.9%) with non-significant heterogeneity (I2=34.4%). Anaemia (27.9%) was the most common adverse event (AE), with serious AEs in 2.0% and only 0.7% discontinued therapy prematurely. In subgroup analyses, patients with cirrhosis had 8.7% lower SVR12 than non-cirrhotic patients (P<0.0001), and treatment-experienced patients had 7.2% lower SVR12 than treatment-naïve patients (P=0.0002). Cirrhotic treatment-experienced patients had the lowest SVR12 at 84.5%. There were no significant differences in pooled SVR12 among patient subgroups: RBV dose reduction versus no dose reduction (P=0.30); hepatocellular carcinoma (HCC) versus no HCC (P=0.10); GT 2a versus 2b (P=0.86); and <65 vs ≥65 years of age (P=0.20). Conclusions SOF+RBV for 12 weeks was safe and effective for patients with CHC GT2 in Asia, although those with cirrhosis and prior treatment failure had a lower pooled SVR12 rate. Trial registration number CRD42017067928.
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Affiliation(s)
- Bin Wei
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
| | - Fanpu Ji
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yee Hui Yeo
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
| | - Eiichi Ogawa
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Biyao Zou
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
| | - Christopher D Stave
- Lane Medical Library, Stanford University School of Medicine, Palo Alto, California, USA
| | - Shuangsuo Dang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zongfang Li
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Norihiro Furusyo
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Ramsey C Cheung
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
- Division of Gastroenterology and Hepatology, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Mindie H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, California, USA
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10
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George J, Burnevich E, Sheen IS, Heo J, Kinh NV, Tanwandee T, Cheng PN, Kim DY, Tak WY, Kizhlo S, Zhdanov K, Isakov V, Liang L, Lindore P, Ginanni J, Nguyen BY, Wahl J, Barr E, Robertson M, Ingravallo P, Talwani R. Elbasvir/grazoprevir in Asia-Pacific/Russian participants with chronic hepatitis C virus genotype 1, 4, or 6 infection. Hepatol Commun 2018; 2:595-606. [PMID: 29761174 PMCID: PMC5944586 DOI: 10.1002/hep4.1177] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/16/2018] [Accepted: 01/21/2018] [Indexed: 12/27/2022] Open
Abstract
The prevalence of hepatitis C virus (HCV) infection in Asian countries is high. This study assessed the efficacy and safety of elbasvir/grazoprevir (EBR/GZR) in participants with HCV infection from Asia-Pacific countries and Russia. In this phase 3, randomized, placebo-controlled, double-blind study, treatment-naive participants with HCV genotype (GT) 1, 4, or 6 infection were randomized to EBR 50 mg/GZR 100 mg (immediate-treatment group [ITG]) or placebo (deferred-treatment group [DTG]) once daily for 12 weeks (Protocol PN-5172-067, NCT02251990). The primary efficacy variable was a nonrandomized comparison of sustained virologic response at 12 weeks after the end of therapy (SVR12) for the ITG with a historical control. The primary safety outcome was a randomized comparison between the ITG and DTG. Three hundred thirty-seven participants were randomized to the ITG (n = 251) or DTG (n = 86); 199 (59.2%) participants were Asian, and 250 (74.4%) had HCV GT1b infection. Overall, 232/250 (92.8%) participants in the ITG achieved SVR12 (97.5% confidence interval, 89.1, 96.5). Of the 18 participants who failed to attain SVR12, 1 was lost to follow-up and 17 had virologic failure, 13 of whom had HCV GT6 infection. The incidence of adverse events was similar between participants receiving EBR/GZR and placebo (50.8% versus 51.2%; difference, -0.3%; 95% confidence interval, -12.3, 11.9). Conclusion: EBR/GZR for 12 weeks provides an effective and well-tolerated regimen for chronic HCV GT1 infection in treatment-naive people from Asia-Pacific countries and Russia, particularly for the large population with GT1b infection. EBR/GZR is not recommended for the treatment of individuals with HCV GT6 infection. (Hepatology Communications 2018;2:595-606).
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Affiliation(s)
- Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research Westmead Hospital and University of Sydney Wentworthville NSW Australia
| | | | - I-Shyan Sheen
- Linkou Medical Center Chang Gung Memorial Hospital Taipei Taiwan
| | - Jeong Heo
- College of Medicine, Pusan National University and Medical Research Institute Pusan National University Hospital Busan South Korea
| | | | - Tawesak Tanwandee
- Department of Medicine Faculty of Medicine, Siriraj Hospital Bangkok Thailand
| | | | | | - Won Young Tak
- School of Medicine, Kyungpook National University Daegu South Korea
| | - Svetlana Kizhlo
- City Center for AIDS and Infectious Diseases Treatment and Prophylaxis St. Petersburg Russia
| | | | - Vasily Isakov
- Department of Gastroenterology and Hepatology Federal Research Center of Nutrition and Biotechnology Moscow Russia
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Pegylated Interferon-α Plus Ribavirin Therapy Improves Left Ventricular Diastolic Dysfunction in Patients With Chronic Hepatitis C Attaining Sustained Virological Response. Am J Med Sci 2018; 355:566-572. [PMID: 29891040 DOI: 10.1016/j.amjms.2018.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 01/25/2018] [Accepted: 02/05/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pegylated interferon (pegIFN) in combination with ribavirin (RBV) has successfully improved the rate of sustained virological response (SVR) in chronic hepatitis C virus (HCV) infected individuals, which reduces the progression of the chronic liver disease. However, the influence of combination therapy (pegIFN/RBV) on cardiac function has yielded ambiguous results. The present study aimed to evaluate the effects of combination therapy with pegIFN/RBV on cardiac function of HCV-infected individuals with SVR. MATERIALS AND METHODS Cardiac function was assessed and correlated in 142 treatment-naïve patients with HCV infections by determining cardiac biomarkers and echocardiography before treatment and for 24 weeks post-treatment. RESULTS An SVR was achieved by 50.7% of all patients. Serum N-terminal pro-B-type natriuretic peptide levels were significantly higher in all patients before treatment and decreased significantly 24 weeks post-treatment in the SVR group (62.84 [36.98-102.73] versus 22.87 [15.64-56.92] pg/mL, P < 0.01). Peak early diastolic annular velocity (E') was significantly lower (7.69 ± 2.48 versus 9.74 ± 2.68cm/s, P < 0.001) and E/E' was higher (10.04 ± 2.51 versus 8.18 ± 2.31, P < 0.001) in all patients with SVR. However, there were no statistically significant differences in biomarkers and echocardiographic parameters for patients without SVR. In addition, multivariate analysis identified age (odds ratio [OR] = 1.076; 95% CI: 1.031-1.125; P < 0.001), NT-proBNP (OR = 1.122; 95% CI: 1.002-1.248; P = 0.015), and SVR (OR = 0.532; 95% CI: 0.214-0.895; P = 0.023) as statistically significant independent variables associated with left ventricular diastolic dysfunction. CONCLUSIONS The present study showed no adverse effects of combination therapy on cardiac function of HCV-infected individuals with SVR. Subsequent viral eradication resulted in improvement of left ventricular diastolic dysfunction.
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Kao JH, Yu ML, Peng CY, Heo J, Chu CJ, Chang TT, Lee YJ, Hu TH, Yoon KT, Paik SW, Lim YS, Ahn SH, Isakov V, McPhee F, Hu W, Scott Swenson E, Yin PD, Treitel M. Daclatasvir/asunaprevir/beclabuvir, all-oral, fixed-dose combination for patients with chronic hepatitis C virus genotype 1. J Gastroenterol Hepatol 2017; 32:1998-2005. [PMID: 28370350 DOI: 10.1111/jgh.13796] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 03/17/2017] [Accepted: 03/23/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIM This multinational (Taiwan, South Korea, Russia) phase 3 study evaluated the all-oral, ribavirin-free, fixed-dose combination (DCV-TRIO) of daclatasvir (NS5A inhibitor) 30 mg, asunaprevir (NS3 inhibitor) 200 mg, and beclabuvir (NS5B inhibitor) 75 mg, in patients with chronic hepatitis C virus genotype-1 infection, with or without compensated cirrhosis. METHODS UNITY-4 (NCT02170727) was an open-label, two-cohort study in which 169 patients, treatment-naive (n = 138) or treatment-experienced (n = 31), received twice-daily DCV-TRIO for 12 weeks with 24 weeks of post-treatment follow-up. The primary efficacy end point was sustained virologic response at post-treatment week 12 (SVR12) in treatment-naive patients. RESULTS Eighty-eight (52%) patients were men, 81 (48%) Taiwanese, 78 (46%) Korean, and 10 (6%) Russian; 23 (14%) had compensated cirrhosis, and 52 (31%) were IL28B (rs1297860) non-CC genotype. Baseline resistance-associated NS5A polymorphisms (L31 and/or Y93) were detected in 25/165 (15%) patients with available genotype-1 sequencing data. SVR12 was achieved by 98.6% (136/138; 95% confidence interval: 94.9-99.8%) of treatment-naive and 100% (31/31; 95% confidence interval: 88.8-100%) of treatment-experienced patients. Both virologic failures were found to be infected with hepatitis C virus genotype-6g; 100% SVR12 was observed for genotype-1a (n = 8) and genotype-1b (n = 157). Two patients experienced serious adverse events. Eight (5%) patients experienced reversible grade 3/4 alanine aminotransferase or aspartate aminotransferase elevations, leading to discontinuation in four (2%); all achieved SVR12. There were no grade 3/4 total bilirubin increases and no deaths. CONCLUSIONS Twelve weeks of DCV-TRIO was well tolerated and provided 100% SVR12 in treatment-naive and treatment-experienced patients with genotype-1 infection, with or without cirrhosis, including those with baseline NS5A-L31 or NS5A-Y93 resistance-associated substitutions.
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Affiliation(s)
| | - Ming-Lung Yu
- Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Yuan Peng
- School of Medicine, China Medical University, Taichung, Taiwan
| | - Jeong Heo
- College of Medicine, Pusan National University and Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Chi-Jen Chu
- Taipei Veterans General Hospital, Taipei, Taiwan
| | | | - Youn-Jae Lee
- Inje University Busan Paik Hospital, Busan, Korea
| | - Tsung-Hui Hu
- Chang Gung Memorial Hospital-Kaohsiung Medical Center, Kaohsiung City, Taiwan
| | - Ki Tae Yoon
- Pusan National University School of Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | | | | | - Sang Hoon Ahn
- Yonsei University College of Medicine, Seoul, South Korea
| | | | - Fiona McPhee
- Bristol-Myers Squibb, Princeton, New Jersey, USA
| | - Wenhua Hu
- Bristol-Myers Squibb, Princeton, New Jersey, USA
| | | | - Philip D Yin
- Bristol-Myers Squibb, Princeton, New Jersey, USA
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13
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Liu S, Cao D, Shen Y, Li Y, Li Y, Shi L, Yu J, Li C, Zhang X, Sun M, Yao Y. The ERAP gene is associated with HCV chronic infection in a Chinese Han population. Hum Immunol 2017; 78:731-738. [PMID: 29037997 DOI: 10.1016/j.humimm.2017.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 09/15/2017] [Accepted: 10/11/2017] [Indexed: 02/01/2023]
Abstract
Endoplasmic reticulum aminopeptidases (ERAPs), ERAP1 and ERAP2, are critical components in the antigen-presentation system and are specialized to produce optimal-sized peptides for HLA I binding. ERAP gene polymorphisms have been correlated with HLA-associated diseases. To investigate the association between ERAP gene polymorphisms and HCV chronic infection, a TaqMan assay was used to genotype 4 SNPs (rs27044, rs30187, rs26618 and rs26653) in ERAP1 and 2 SNPs (rs2248374 and rs2549782) in ERAP2 genes in 376 Chinese Han HCV chronic infections and 324 healthy Chinese Han controls. The allelic distribution of rs26618 in the ERAP1 gene and rs2248374 in ERAP2 gene were both significantly different in case and control groups. The C-allele of rs26618 had an increased HCV chronicity risk compared with the T-allele (P=.025, OR=1.318, 95%CI: 1.035-1.677), and the same effect was found in A-allele of rs2248374 compared with G-allele (P=0.046, OR=1.244, 95%CI: 1.004-1.540). There were notable differences in the genotype distribution in analysis using the dominant genetic model in rs26618 (CC+CT vs. TT; P=0.007, OR=1.473, 95%CI: 1.091-1.989) and recessive genetic model in rs2248374 (AA vs. AG+GG; P=0.003, OR=1.548, 95%CI: 1.026-2.335). In addition, rs26618 and rs2248374-genotype combination played noteable effects on the clinical parameters. These results indicated that the ERAP gene may play a critical role in HCV chronicity in this Chinese Han population.
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Affiliation(s)
- Shuyuan Liu
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Danfeng Cao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Yunsong Shen
- The First People's Hospital in Yunnan Province & The Affiliated Hospital of Kunming Science and Technology University, Kunming 650032, China
| | - Yalin Li
- The First People's Hospital in Yunnan Province & The Affiliated Hospital of Kunming Science and Technology University, Kunming 650032, China
| | - Ying Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Li Shi
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Jiankun Yu
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Chuanyin Li
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Xinwen Zhang
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China
| | - Mingbo Sun
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China.
| | - Yufeng Yao
- Institute of Medical Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Disease, Kunming 650118, China.
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14
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Kao JH, Ahn SH, Chien RN, Cho M, Chuang WL, Jeong SH, Liu CH, Paik SW. Urgency to treat patients with chronic hepatitis C in Asia. J Gastroenterol Hepatol 2017; 32:966-974. [PMID: 28005275 DOI: 10.1111/jgh.13709] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 12/05/2016] [Accepted: 12/12/2016] [Indexed: 02/06/2023]
Abstract
Chronic hepatitis C (CHC) infection poses a global healthcare burden, being associated with serious complications if untreated. The prevalence of hepatitis C virus (HCV) infection is highest in areas of Central, South, and East Asia; over 50% of HCV patients worldwide live in the region, where HCV genotypes 1b, 2, 3, and 6 are the most prevalent. Treatment outcomes for chronic hepatitis C vary by ethnicity, and Asian patients achieve higher sustained virologic response rates following interferon (IFN)-based therapy than non-Asians. However, low efficacy, poor safety profile, and subcutaneous administration limit the use of IFN-based therapies. Superior virologic outcomes have been observed with different classes of direct-acting antivirals (DAAs) alone or in combination, and several all-oral DAA regimens are available in Asia. These regimens have shown excellent efficacy and favorable tolerability in clinical trials, yet there is a need for further studies of DAAs in a real world context, particularly in Asia. Furthermore, IFN-free treatment may not be accessible for many patients in the region, and IFN-based regimens remain an option in some countries. There is a need to improve current clinical practices for HCV management in Asia, including effective screening, disease awareness, and prevention programs, and to further understand the cost-effectiveness of IFN-free regimens. The evolution of potent treatments makes HCV eradication a possibility that should be available to all patients. However, access to these therapies in Asian countries has been slow, primarily because of economic barriers that continue to present a hurdle to optimal treatment.
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Affiliation(s)
- Jia-Horng Kao
- National Taiwan University College of Medicine, Taipei, Taiwan
| | | | - Rong-Nan Chien
- Chang-Gung Memorial Hospital, Kee-Lung Branch, Keelung, Taiwan
| | - Mong Cho
- Pusan National University Yangsan Hospital, Busan, Korea
| | - Wan-Long Chuang
- Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sook-Hyang Jeong
- Seoul National University, College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Chen-Hua Liu
- National Taiwan University Hospital, Taipei, Taiwan
| | - Seung-Woon Paik
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Tang L, Ward H, Kattakuzhy S, Wilson E, Kottilil S. Dual sofosbuvir and ribavirin therapy for chronic hepatitis C infection. Expert Rev Gastroenterol Hepatol 2016; 10:21-36. [PMID: 26558305 DOI: 10.1586/17474124.2016.1119042] [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] [Indexed: 12/25/2022]
Abstract
Sofosbuvir is the first pan-genotypic direct acting antiviral agent to be approved. This article provides an overview of the pharmacology of sofosbuvir and ribavirin and a comprehensive summary of the phase 2 and 3 studies supporting dual sofosbuvir and ribavirin therapy for chronic hepatitis C infection. With the production of generic formulations of sofosbuvir, we anticipate this regimen leading the first wave for widespread, IFN-free treatment and becoming first line for all genotypes (including genotype 1) for much of the world-in particular in developing and middle income countries. We discuss the continued challenges with this regimen including among patients with decompensated liver disease and post-liver transplant, and renal failure. We address concerns of emerging resistance. We also discuss the future prospects including the global uptake of sofosbuvir and ribavirin for the treatment of all genotypes.
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Affiliation(s)
- L Tang
- a Division of Clinical Care and Research , Institute of Human Virology, University of Maryland School of Medicine , Baltimore , MD , USA
| | - H Ward
- a Division of Clinical Care and Research , Institute of Human Virology, University of Maryland School of Medicine , Baltimore , MD , USA
| | - S Kattakuzhy
- a Division of Clinical Care and Research , Institute of Human Virology, University of Maryland School of Medicine , Baltimore , MD , USA
| | - E Wilson
- a Division of Clinical Care and Research , Institute of Human Virology, University of Maryland School of Medicine , Baltimore , MD , USA
| | - S Kottilil
- a Division of Clinical Care and Research , Institute of Human Virology, University of Maryland School of Medicine , Baltimore , MD , USA
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16
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Zhao YJ, Khoo AL, Lin L, Teng M, Koh CJ, Lim SG, Lim BP, Dan YY. Cost-effectiveness of strategy-based approach to treatment of genotype 1 chronic hepatitis C. J Gastroenterol Hepatol 2016; 31:1628-37. [PMID: 26990023 DOI: 10.1111/jgh.13341] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/10/2016] [Accepted: 02/29/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM The high cost of chronic hepatitis C (HCV) direct-acting antivirals (DAAs) poses significant financial challenges for health payers, especially in Asia. A personalized treatment strategy based on individualized probability of virological response using oral DAAs as second-line therapy would seem practical but has not been studied. METHODS We performed a Markov model to project health outcomes and costs for patients with genotype 1 HCV through 10 treatment strategies over a lifetime period. The implication of retreatment was also incorporated to reflect real-life situation. RESULTS Using boceprevir and peginterferon/ribavirin (BOC/PR, the least costly treatment) as a base case, the all-oral therapies such as ombitasvir/paritaprevir/ritonavir-dasabuvir are cost-effective with an incremental cost-effective ratio of $US50 828. However, the all-oral DAAs would no longer be cost-effective compared with conventional therapies if retreatment were taken into account. A road map strategy using rapid virological response to guide use of BOC/PR and sofosbuvir/PR had the most favorable incremental cost-effective ratio ($US27 782) relative to BOC/PR. Nevertheless, the trade-off with the cost-effectiveness of the road map strategy is an increased number of liver-related deaths compared with all-oral DAAs (52 vs 10-20 per 10 000 patients) by incorporating retreatment. CONCLUSIONS The 12-week all-oral DAAs were cost-effective options using conventional drug-to-drug comparison. However, they cease to be cost-effective when treatment strategies incorporating DAA retreatment for interferon failures are incorporated. HCV management can be optimized by adopting individualized treatment algorithm providing a practical solution to health payers to make oral DAAs accessible to those who need them most.
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Affiliation(s)
- Ying Jiao Zhao
- Pharmacy and Therapeutics Office, Group Corporate Development, National Healthcare Group, Singapore
| | - Ai Leng Khoo
- Pharmacy and Therapeutics Office, Group Corporate Development, National Healthcare Group, Singapore
| | - Liang Lin
- Pharmacy and Therapeutics Office, Group Corporate Development, National Healthcare Group, Singapore
| | - Monica Teng
- Pharmacy and Therapeutics Office, Group Corporate Development, National Healthcare Group, Singapore
| | - Calvin J Koh
- Division of Gastroenterology and Hepatology, National University Hospital, National University Health System, Singapore
| | - Seng Gee Lim
- Division of Gastroenterology and Hepatology, National University Hospital, National University Health System, Singapore
| | - Boon Peng Lim
- Pharmacy and Therapeutics Office, Group Corporate Development, National Healthcare Group, Singapore
| | - Yock Young Dan
- Division of Gastroenterology and Hepatology, National University Hospital, National University Health System, Singapore. .,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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17
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Jha V, Prasad N. CKD and Infectious Diseases in Asia Pacific: Challenges and Opportunities. Am J Kidney Dis 2016; 68:148-60. [PMID: 26943982 DOI: 10.1053/j.ajkd.2016.01.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 01/15/2016] [Indexed: 02/06/2023]
Abstract
The exact number of patients with chronic kidney disease (CKD) in Asia Pacific is uncertain. In numeric terms, the region is home to the largest population of patients with untreated chronic kidney failure. The climatic, geographic, social, cultural, economic, and environmental diversity within this region is higher than in any other part of the world. Large parts of the region face a climate-related burden of infectious diseases. Infections contribute to the development and progression of CKD and complicate the course of patients with pre-existing CKD (especially those on dialysis therapy or who are immunosuppressed), increase the cost of CKD care, and contribute to mortality and morbidity. Kidney involvement is a feature of several infectious diseases prevalent in Asia Pacific. Examples include malaria, leptospirosis, scrub typhus, tuberculosis, hepatitis B and C virus, dengue hemorrhagic fever, and Hantaan virus infections. The contribution of infection-associated acute kidney injury to the overall burden of CKD has not been evaluated systematically. Research is needed to quantify the impact of infections on kidney health by undertaking prospective studies. Nephrologists need to work with infectious disease research groups and government infection surveillance and control programs.
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Affiliation(s)
- Vivekanand Jha
- Department of Nephrology, Postgraduate Institute of Medical Education and Research, Chandigarh, India; Department of Nephrology, George Institute for Global Health, New Delhi, India; Department of Nephrology, University of Oxford, Oxford, United Kingdom.
| | - Narayan Prasad
- Department of Nephrology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Abstract
The recent outbreak of hepatitis C virus (HCV) at Singapore General Hospital (SGH) has highlighted the dangers of viral hepatitis. In this case, infection control and environmental contamination were the culprits, particularly, a drop of blood containing 5 million IU HCV. From a broader perspective, there has been a revolution in HCV therapy with the recent rapid evolution of short-term (12 weeks) safe, all oral directly-acting antiviral (DAA) therapy leading to cure rates of 90% to 100%, even in previously difficult to treat patients with liver cirrhosis, previous treatment failure and those on immunosuppression. Consequently, treating HCV in risk groups such as renal dialysis and haemophiliacs can eliminate a pool of infected patients to prevent future outbreaks. A seroprevalence study is needed to identify a possible “birth cohort” effect that could aid screening. For HBV, vaccination has reduced prevalence to 3.8%, but these patients are prone to complications such as HBV flares. Since 2014, 13 patients developed liver failure and were listed for liver transplantation at National University Hospital (NUH) but 6 died beforehand. This avoidable catastrophe is due to undiagnosed HBV infection or patients who did not return for follow-up. Good antiviral therapy is available, but the issues are similar to HCV, identification of patients and linkage to care. A cure seems likely in the future as pharmaceutical companies are developing new agents. Singapore has joined in this initiative with a recent award of a national research translational grant to better understand the pathophysiology and the processes needed for a cure of HBV.
Key words: Eradication, Hepatitis C, Linkage to care, Outbreaks, Screening, Treatment
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Affiliation(s)
- Seng Gee Lim
- Division of Gastroenterology and Hepatology, National University Health System, Singapore
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