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Hepatitis C genotype 3

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https://www.readbyqxmd.com/read/28437794/hepatitis-b-virus-reactivation-associated-with-direct-acting-antiviral-therapy-for-chronic-hepatitis-c-virus-a-review-of-cases-reported-to-the-u-s-food-and-drug-administration-adverse-event-reporting-system
#1
Susan J Bersoff-Matcha, Kelly Cao, Mihaela Jason, Adebola Ajao, S Christopher Jones, Tamra Meyer, Allen Brinker
Background: Direct-acting antiviral agents (DAAs) are used increasingly to treat hepatitis C virus (HCV) infection. Reports were published recently on hepatitis B virus (HBV) reactivation (HBV-R) in patients with HBV-HCV co-infection. Hepatitis B virus reactivation, defined as an abrupt increase in HBV replication in patients with inactive or resolved HBV infection, may result in clinically significant hepatitis. Objective: To assess whether HBV-R is a safety concern in patients receiving HCV DAAs...
April 25, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28436333/epidemiology-of-hepatitis-c-infection-in-pakistan-current-estimate-and-major-risk-factors
#2
Aiman Arshad, Usman Ali Ashfaq
In Pakistan, hepatitis C virus (HCV) is a major healthcare problem, with acute and chronic infections responsible for liver damage, cirrhosis, and hepatocellular carcinoma. Under the Human Development Index of the United Nations, Pakistan is ranked 134th of 174 countries due to its poor educational and health standards. This study was designed to study HCV and its genotype prevalence in different cities and provinces of Pakistan and describe the major routes of HCV transmission. Literature searches were performed in PubMed, Mendeley, and Google Scholar...
2017: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/28421422/hepatitis-c-virus-genotype-3-update-on-current-and-emergent-therapeutic-interventions
#3
REVIEW
Steven W Johnson, Dorothea K Thompson, Brianne Raccor
PURPOSE OF REVIEW: Direct-acting antiviral agents (DAAs) have markedly improved the prognosis of hepatitis C virus (HCV)-genotype 3 (GT3), a highly prevalent infection worldwide. However, in patients with hepatic fibrosis, cirrhosis, or hepatocellular carcinoma (HCC), GT3 infection presents a treatment challenge compared with other genotypes. The dependence of the HCV life cycle on host lipid metabolism suggests the possible utility of targeting host cellular factors for combination anti-HCV therapy...
June 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28421367/ns3-protease-resistance-associated-substitutions-in-liver-tissue-and-plasma-samples-from-patients-infected-by-hepatitis-c-virus-genotype-1a-or-1b
#4
Giulia Morsica, Andrea Andolina, Marco Merli, Emanuela Messina, Hamid Hasson, Adriano Lazzarin, Caterina Uberti-Foppa, Sabrina Bagaglio
The presence of naturally occurring resistance-associated substitutions (RASs) in the HCV-protease domain has been poorly investigated in the liver, the main site of HCV replication. We evaluated the natural resistance of the virus to NS3 protease inhibitors in liver tissue and plasma samples taken from HCV-infected patients. RASs were investigated by means of viral population sequencing in liver tissue samples from 18 HCV-infected patients harbouring genotype 1a or genotype 1b; plasma samples from 12 of these patients were also available for virological investigation...
April 18, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28419488/interferon-%C3%AE-3-gene-il28b-is-associated-with-spontaneous-or-treatment-induced-viral-clearance-in-hepatitis%C3%A2-c-virus-infected-multitransfused-patients-with-thalassemia
#5
Aritra Biswas, Rushna Firdaus, Debanjali Gupta, Monika Ghosh, Kallol Saha, Prosanto Chowdhury, Maitreyee Bhattacharyya, Provash C Sadhukhan
BACKGROUND: Hepatitis C virus (HCV) is the major posttransfusion infection in multitransfused individuals in India with thalassemia major. To our knowledge, this study is the first conducted to correlate and comprehend the effects of the host interleukin (IL)28B gene polymorphism at loci rs12979860 and rs8099917 in spontaneous or interferon (IFN)-induced treatment response in the HCV-seroreactive individuals with thalassemia major. STUDY DESIGN AND METHODS: A total of 557 HCV-seroreactive individuals with thalassemia were processed for HCV viral genotyping and host IL28B single-nucleotide polymorphism analysis at loci rs12979860 and rs8099917...
April 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28416232/experience-in-real-clinical-practice-with-new-direct-acting-antivirals-in-chronic-hepatitis-c
#6
Fernando Manuel Jiménez-Macías, Manuel Cabanillas-Casafranca, Marta Maraver-Zamora, Gema Romero-Herrera, Federico García-García, Antonio Correia-Varela-Almeida, Ana Cabello-Fernández, Manuel Ramos-Lora
INTRODUCTION AND OBJECTIVE: Inclusion of direct-acting antivirals into clinical practice in patients with chronic HCV (CHC) has been a milestone in medicine. PATIENTS AND METHODS: Analytical, prospective study, involving 126 patients with chronic HCV treated with direct-acting antivirals. Efficacy and safety of treatment and factors associated with failure treatment were evaluated. RESULTS: Age 54±10. Male (70%). Cirrhosis (60%). Distribution according to genotypes: G1a (31%), G1b (42%); G3 (14%); G4 (13%)...
April 14, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28416221/ombitasvir-paritaprevir-and-ritonavir-plus-dasabuvir-for-8-weeks-in-previously-untreated-patients-with-hepatitis-c-virus-genotype-1b-infection-without-cirrhosis-garnet-a-single-arm-open-label-phase-3b-trial
#7
Tania M Welzel, Tarik Asselah, Emily O Dumas, Stefan Zeuzem, David Shaw, Rawi Hazzan, Xavier Forns, Tami Pilot-Matias, Wenjing Lu, Daniel E Cohen, Jordan J Feld
BACKGROUND: Clinical studies have shown high rates of sustained virological response (hepatitis C virus [HCV] RNA <15 IU/mL) at post-treatment week 12 (SVR12) in patients with genotype 1b infection with and without cirrhosis who received coformulated ombitasvir, paritaprevir, and ritonavir, plus dasabuvir, without ribavirin, for 12 weeks. In this study, we aimed to assess 8-week treatment with ombitasvir, paritaprevir, and ritonavir, plus dasabuvir, without ribavirin in patients infected with HCV genotype 1b without cirrhosis...
April 13, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28415985/vitamin-d-related-gene-polymorphism-predict-treatment-response-to-pegylated-interferon-based-therapy-in-thai-chronic-hepatitis-c-patients
#8
Kessarin Thanapirom, Sirinporn Suksawatamnuay, Wattana Sukeepaisarnjaroen, Pisit Tangkijvanich, Sombat Treeprasertsuk, Panarat Thaimai, Rujipat Wasitthankasem, Yong Poovorawan, Piyawat Komolmit
BACKGROUND: Patients with chronic hepatitis C (HCV) infection have high prevalence of vitamin D deficiency. Genome-wide association study data has showed that several genetic variants within vitamin D cascade affect vitamin D function. This study aimed to determine whether genetic polymorphisms of genes in the vitamin D pathway are associated with treatment responses to pegylated interferon (PEG-IFN)-based therapy in patients with chronic HCV infection. METHODS: The study included 623 Thai patients from 2 university hospitals diagnosed with chronic HCV infection who were treated with a PEG-IFN and ribavirin...
April 17, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28412293/glecaprevir-and-pibrentasvir-yield-high-response-rates-in-patients-with-hcv-genotype-1-6-without-cirrhosis
#9
Paul Y Kwo, Fred Poordad, Armen Asatryan, Stanley Wang, David L Wyles, Tarek Hassanein, Franco Felizarta, Mark S Sulkowski, Edward Gane, Benedict Maliakkal, J Scott Overcash, Stuart C Gordon, Andrew J Muir, Humberto Aguilar, Kosh Agarwal, Gregory J Dore, Chih-Wei Lin, Ran Liu, Sandra S Lovell, Teresa I Ng, Jens Kort, Federico J Mensa
BACKGROUND: and Aims Hepatitis C virus (HCV) therapy that is highly efficacious, pangenotypic, with a high barrier to resistance and short treatment duration is desirable. The efficacy and safety of 8- and 12-week treatments with glecaprevir (ABT-493; NS3/4A protease inhibitor) and pibrentasvir (ABT-530; NS5A inhibitor) was evaluated in non-cirrhotic patients with chronic HCV genotype 1-6 infection. METHODS: SURVEYOR-I and SURVEYOR-II were phase 2, open-label, multicenter, dose-ranging trials including patients with chronic HCV genotype 1-6 infection who were either previously untreated or treated with pegylated interferon plus ribavirin...
April 12, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28410425/the-cobas%C3%A2-hcv-gt-is-a-new-tool-that-accurately-identifies-hepatitis-c-virus-genotypes-for-clinical-practice
#10
J A Fernández-Caballero, M Alvarez, N Chueca, A B Pérez, F García
OBJECTIVE: We aimed to evaluate the correct assignment of HCV genotype/subtypes 1a and 1b by cobas® HCV genotyping (GT) assay (Roche Molecular Diagnostics) compared with nonstructural protein 5B (NS5B) sequencing. PATIENTS AND METHODS: Clinical samples from 153 patients submitted for HCV genotyping were studied. After genotyping with the cobas® HCV GT, sequencing of a 387 bp fragment in the NS5B gene and phylogenetic analysis was employed to compare genotyping results...
2017: PloS One
https://www.readbyqxmd.com/read/28410351/viral-dynamics-among-hepatitis-c-virus-chronic-infected-patients-during-direct-acting-antiviral-agents-therapy-impact-for-monitoring-and-optimizing-treatment-duration
#11
Andres Tabernilla, Marta Grandal, Berta Pernas, Angeles Castro-Iglesias, Iria Rodríguez-Osorio, Alvaro Mena, Manuel Delgado, Purificacion Cid, Jose D Pedreira, Eva Poveda
OBJECTIVES: Direct-acting antiviral agents (DAAs) have provided an ultimate treatment duration of 12 weeks for most hepatitis C virus (HCV)-infected patients. The opportunity to reduce treatment duration to 6 or 8 weeks is being evaluated. Here, the HCV viral dynamics at short times during HCV therapies and its implications for monitoring and optimizing treatment duration have been assessed. PATIENTS AND METHODS: HCV chronic infected patients who began HCV therapy (March 2014 to June 2015) at a reference hospital of the Northwest of Spain were selected...
April 13, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28405324/25-oh-vitamin-d-level-has-no-impact-on-the-efficacy-of-antiviral-therapy-in-na%C3%A3-ve-genotype-1-hcv-infected-patients
#12
Arthur Belle, Emmanuel Gizard, Guillaume Conroy, Anthony Lopez, Magali Bouvier-Alias, Stéphanie Rouanet, Laurent Peyrin-Biroulet, Jean-Michel Pawlotsky, Jean-Pierre Bronowicki
BACKGROUND AND AIM: The impact of 25-OH vitamin D on sustained viral response (SVR) to antiviral therapy and on fibrosis progression in hepatitis C is debated. We assessed the impact of 25-OH vitamin D concentration on the efficacy of antiviral therapy in naïve genotype 1 hepatitis C virus (HCV)-infected patients. METHODS: The study population consisted of treatment-naïve genotype 1 patients enrolled in a randomised controlled trial. A total of 516 patients received peginterferon α-2a 180 µg/week plus ribavirin 800 mg/day for 24 weeks...
February 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28404132/global-prevalence-and-genotype-distribution-of-hepatitis-c-virus-infection-in-2015-a-modelling-study
#13
(no author information available yet)
BACKGROUND: The 69th World Health Assembly approved the Global Health Sector Strategy to eliminate hepatitis C virus (HCV) infection by 2030, which can become a reality with the recent launch of direct acting antiviral therapies. Reliable disease burden estimates are required for national strategies. This analysis estimates the global prevalence of viraemic HCV at the end of 2015, an update of-and expansion on-the 2014 analysis, which reported 80 million (95% CI 64-103) viraemic infections in 2013...
March 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28404110/ombitasvir-paritaprevir-and-ritonavir-plus-ribavirin-for-chronic-hepatitis-c-virus-genotype-4-infection-in-egyptian-patients-with-or-without-compensated-cirrhosis-agate-ii-a-multicentre-phase-3-partly-randomised-open-label-trial
#14
Imam Waked, Gamal Shiha, Roula B Qaqish, Gamal Esmat, Ayman Yosry, Mohamed Hassany, Reham Soliman, Mohammad A Mohey, Naglaa Allam, Naglaa Zayed, Tarik Asselah, Coleen Hall, Rebecca Redman, Niloufar Mobashery, Wahid Doss
BACKGROUND: In Egypt, chronic hepatitis C virus (HCV) infection occurs in around 10% of the population (about 8 million individuals), and is a leading cause of liver cirrhosis, hepatocellular carcinoma, and mortality. Although HCV genotype 4 constitutes about 20% of HCV infections worldwide, the prevalence in Egypt is more than 90%. We assessed the efficacy and safety of the two direct-acting antiviral drugs ombitasvir, an NS5A inhibitor, and paritaprevir, an NS3/4A protease inhibitor dosed with ritonavir, plus ribavirin in treatment of chronic HCV infection in Egypt...
September 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28404108/ombitasvir-paritaprevir-and-ritonavir-plus-ribavirin-in-adults-with-hepatitis-c-virus-genotype-4-infection-and-cirrhosis-agate-i-a-multicentre-phase-3-randomised-open-label-trial
#15
Tarik Asselah, Christophe Hézode, Roula B Qaqish, Magdy ElKhashab, Tarek Hassanein, George Papatheodoridis, Jordan J Feld, Christophe Moreno, Stefan Zeuzem, Peter Ferenci, Yao Yu, Rebecca Redman, Tami Pilot-Matias, Niloufar Mobashery
BACKGROUND: Hepatitis C virus (HCV) genotype 4 infection is most commonly reported in sub-Saharan Africa and the Middle East; however, prevalence is increasing worldwide through immigration. HCV genotype 4 accounts for 20% of all infections, but clinical trial data for treatment remain limited. We assessed the combination of two direct-acting antivirals, ombitasvir (NS5A inhibitor) and paritaprevir (NS3/4A protease inhibitor; co-dosed with ritonavir) plus ribavirin in patients with HCV genotype 4 infection and compensated cirrhosis...
September 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28404069/patient-reported-outcomes-with-sofosbuvir-and-velpatasvir-with-or-without-ribavirin-for-hepatitis-c-virus-related-decompensated-cirrhosis-an-exploratory-analysis-from-the-randomised-open-label-astral-4-phase-3-trial
#16
Zobair M Younossi, Maria Stepanova, Michael Charlton, Michael P Curry, Jacqueline G O'Leary, Robert S Brown, Sharon Hunt
BACKGROUND: Hepatitis C virus (HCV) treatment regimens with direct-acting antivirals have not been extensively studied in patients with decompensated cirrhosis. We assessed patient-reported outcomes (PROs) in patients with decompensated cirrhosis given a fixed-dose combination of sofosbuvir and velpatasvir with and without ribavirin. METHODS: This study was an exploratory analysis of data collected in a randomised, open-label phase 3 trial (ASTRAL-4) in which patients with HCV-related decompensated cirrhosis were randomly assigned to an all-oral fixed-dose combination of sofosbuvir (400 mg) and velpatasvir (100 mg) once daily for 12 weeks, sofosbuvir and velpatasvir plus oral ribavirin (weight-based 1000 mg or 1200 mg) for 12 weeks, or sofosbuvir and velpatasvir for 24 weeks...
October 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28404015/management-of-hepatitis-c-virus-infection-in-the-asia-pacific-region-an-update
#17
REVIEW
Seng Gee Lim, Alessio Aghemo, Pei-Jer Chen, Yock Young Dan, Edward Gane, Rino Gani, Robert G Gish, Richard Guan, Ji Dong Jia, Kieron Lim, Teerha Piratvisuth, Samir Shah, Mitchell L Shiffman, Frank Tacke, Soek Siam Tan, Tawesak Tanwandee, Khin Maung Win, Cihan Yurdaydin
The Asia-Pacific region has disparate hepatitis C virus (HCV) epidemiology, with prevalence ranging from 0·1% to 4·7%, and a unique genotype distribution. Genotype 1b dominates in east Asia, whereas in south Asia and southeast Asia genotype 3 dominates, and in Indochina (Vietnam, Cambodia, and Laos), genotype 6 is most common. Often, availability of all-oral direct-acting antivirals (DAAs) is delayed because of differing regulatory requirements. Ideally, for genotype 1 infections, sofosbuvir plus ledipasvir, sofosbuvir plus daclatasvir, or ombitasvir, paritaprevir, and ritonavir plus dasabuvir are suitable...
January 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28397482/genetic-polymorphism-of-epidermal-growth-factor-rs4444903-influences-susceptibility-to-hcv-related-liver-cirrhosis-and-hepatocellular-carcinoma-in-a-chinese-han-population
#18
Shitian Zhang, Kunyan Qiao, Congdoanh Trieu, Zhixiao Huo, Qinghai Dai, Yanan Du, Wei Lu, Wei Hou
BACKGROUND: Genetic polymorphism in the epidermal growth factor (EGF, rs4444903) gene has been demonstrated to be associated with the clinical deterioration in hepatitis C virus (HCV)-related liver cirrhosis (LC) and the development of hepatocellular carcinoma (HCC). Whether this single nucleotide polymorphism (SNP) influences susceptibility to HCV-related LC and HCC in the Chinese Han population is largely unknown. METHODS: In this case-control study, a total of 187 Chinese Han patients with chronic HCV infection were enrolled, including 62 HCV-related LC patients, 46 HCV-related HCC patients, and 79 chronic hepatitis C (CHC) patients without LC and HCC, and the genetic polymorphism was genotyped via a matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS) assay...
April 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28397480/genetic-polymorphism-of-mthfr-c677t-influences-susceptibility-to-hbv-related-hepatocellular-carcinoma-in-a-chinese-population-a-case-control-study
#19
Kunyan Qiao, Shitian Zhang, Congdoanh Trieu, Qinghai Dai, Zhixiao Huo, Yanan Du, Wei Lu, Wei Hou
BACKGROUND: Methylene tetrahydrofolate reductase (MTHFR) is the key enzyme of folic acid metabolism and the C677T mutation is associated with decreased enzyme activity. Several studies have shown its regulatory role in carcinogenesis and tumor growth. HBV (hepatitis B virus)-related HCC (hepatocellular carcinoma) is one of the most common liver cancers worldwide. Therefore, the present case-control study aimed to investigate the role of genetic polymorphism of MTHFR C677T in the development and progression of HBV-related HCC in a Chinese population...
April 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28394351/genome-to-genome-analysis-highlights-the-effect-of-the-human-innate-and-adaptive-immune-systems-on-the-hepatitis-c-virus
#20
M Azim Ansari, Vincent Pedergnana, Camilla L C Ip, Andrea Magri, Annette Von Delft, David Bonsall, Nimisha Chaturvedi, Istvan Bartha, David Smith, George Nicholson, Gilean McVean, Amy Trebes, Paolo Piazza, Jacques Fellay, Graham Cooke, Graham R Foster, Emma Hudson, John McLauchlan, Peter Simmonds, Rory Bowden, Paul Klenerman, Eleanor Barnes, Chris C A Spencer
Outcomes of hepatitis C virus (HCV) infection and treatment depend on viral and host genetic factors. Here we use human genome-wide genotyping arrays and new whole-genome HCV viral sequencing technologies to perform a systematic genome-to-genome study of 542 individuals who were chronically infected with HCV, predominantly genotype 3. We show that both alleles of genes encoding human leukocyte antigen molecules and genes encoding components of the interferon lambda innate immune system drive viral polymorphism...
April 10, 2017: Nature Genetics
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