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Musto F, Stracuzzi M, Crivellaro E, Rubinacci V, Cibarelli A, Porro C, Ghidoni E, Zuccotti GV, Giacomet V. Natural History and Management of Hepatitis C in Children: 25 Years Experience of a Reference Center in Northern Italy. Pediatr Infect Dis J 2024; 43:813-818. [PMID: 38753999 PMCID: PMC11319081 DOI: 10.1097/inf.0000000000004374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/23/2024] [Indexed: 05/18/2024]
Abstract
Hepatitis C virus (HCV) infection natural history and management in the pediatric population are still debated. We retrospectively evaluated the outcome of a HCV pediatric population managed at the Pediatric Infectious Disease Unit of Luigi Sacco Hospital (Milan, Italy) from January 1997 to January 2022 (median follow-up 10 years) and we focused on the role of new drugs and transient elastography. Fifty-seven patients were enrolled: 8 (14%) had a spontaneous clearance, 33 were treated (58%), 7 (12%) were not treated because they were under 12 years old and 9 were lost at follow-up. HCV RNA was undetectable in all treated patients at the end of therapy, after 12 weeks (SVR12) and for the rest of their follow-up. All patients treated underwent elastography before and 1 year after therapy. Median stiffness pretherapy was 5.6 kPa, and 9 patients (16%) had abnormal transient elastography (>7 kPa, median 8.7 kPa). Median stiffness after treatment in the abnormal group was 6.8 kPa. Direct-acting antiviral agents are a safe and effective therapy for HCV chronic infection in the pediatric population. Liver elastography is normal in many vertically infected children before 12 years, but, when abnormal, it shows a significant improvement after direct-acting antiviral agent treatment. Further studies are needed to evaluate the role of elastography at diagnosis and follow-up in children.
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Affiliation(s)
- Francesca Musto
- From the Paediatric Infectious Disease Unit, Department of Paediatrics, Luigi Sacco Hospital Milan, University of Milan
| | - Marta Stracuzzi
- From the Paediatric Infectious Disease Unit, Department of Paediatrics, Luigi Sacco Hospital Milan, University of Milan
| | - Elisa Crivellaro
- From the Paediatric Infectious Disease Unit, Department of Paediatrics, Luigi Sacco Hospital Milan, University of Milan
| | - Valeria Rubinacci
- From the Paediatric Infectious Disease Unit, Department of Paediatrics, Luigi Sacco Hospital Milan, University of Milan
| | - Alessandro Cibarelli
- From the Paediatric Infectious Disease Unit, Department of Paediatrics, Luigi Sacco Hospital Milan, University of Milan
| | - Cecilia Porro
- From the Paediatric Infectious Disease Unit, Department of Paediatrics, Luigi Sacco Hospital Milan, University of Milan
| | - Elena Ghidoni
- From the Paediatric Infectious Disease Unit, Department of Paediatrics, Luigi Sacco Hospital Milan, University of Milan
| | - Gian Vincenzo Zuccotti
- Pediatric Department, Buzzi Children’s Hospital
- Department of Biosciences, Pediatric Clinical Research Center Romeo ed Enrica Invernizzi, University of Milan, Milan, Italy
| | - Vania Giacomet
- From the Paediatric Infectious Disease Unit, Department of Paediatrics, Luigi Sacco Hospital Milan, University of Milan
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Mourik K, Boers SA, van Rijn AL, Thijssen JCP, Wessels E, Claas ECJ. Clinical performance of two new, fully integrated molecular platforms used for HIV-1, HBV and HCV viral load analysis, the NeuMoDx 288 and the Alinity m. J Clin Virol 2023; 160:105376. [PMID: 36640531 DOI: 10.1016/j.jcv.2022.105376] [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: 09/01/2022] [Revised: 12/20/2022] [Accepted: 12/31/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Viral load (VL) determination in patients with human immunodeficiency virus type 1 (HIV-1), hepatitis B virus (HBV) and hepatitis C virus (HCV) is essential for proper patient management and follow-up. New molecular platforms have been developed to fully automate these diagnostic assays. OBJECTIVE Evaluation of the clinical performance of HIV-1, HBV and HCV VL assays on the Alinity m (Abbott) and NeuMoDx (Qiagen) molecular platforms. METHOD Test panels of the three viruses have been compiled of 100 plasma and/or serum samples per target containing non-detectable, non-quantifiable and quantifiable VLs. All samples were retrospectively tested on the Alinity m and NeuMoDx platforms according to manufacturers' instructions. RESULTS A total of 74, 86 and 66 samples with valid results for both platforms were included in the HIV-1, HBV and HCV analysis respectively. Overall qualitative agreement of the assays on both platforms was 78% for HIV-1, 93% for HBV and 100% for HCV. Quantitative agreement (less than 0.5 log difference) was shown to be 68% for HIV-1, 68% for HBV and 94% for HCV. CONCLUSION The Alinity m and NeuMoDx HCV assay have a comparable performance. Quantification differences in the HIV-1 assay were mostly apparent in the lower VLs and under-quantification of the NeuMoDx HBV assay was observed.
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Affiliation(s)
- K Mourik
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - S A Boers
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - A L van Rijn
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - J C P Thijssen
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - E Wessels
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands
| | - E C J Claas
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, The Netherlands.
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Brzdęk M, Dobrowolska K, Flisiak R, Zarębska-Michaluk D. Genotype 4 hepatitis C virus-a review of a diverse genotype. Adv Med Sci 2023; 68:54-59. [PMID: 36640687 DOI: 10.1016/j.advms.2022.12.003] [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: 06/16/2022] [Revised: 12/02/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023]
Abstract
PURPOSE Hepatitis C virus (HCV) infection remains a major health problem and one of the leading causes of chronic liver disease worldwide. The purpose of this paper was to summarize knowledge about the epidemiology of HCV genotype (GT) 4 infection, similarities and differences with other genotypes, specific problems associated with this genotype, and treatment regimens used to treat GT4-infected patients. METHODS We performed an accurate search for literature using the PubMed database to select high-quality reviews and original articles concerning this topic. RESULTS GT4 with a global prevalence of 8% takes third place, closing the global HCV podium in terms of frequency. However, there are regions where GT4 infections are dominant, such as sub-Saharan and North Africa, and the Middle East. The disease course and complications are generally similar to those of chronic hepatitis C caused by other genotypes, although the faster progression of fibrosis was demonstrated in patients with coexisting schistosomiasis. In the era of interferon-based therapy, GT4-infected patients were described as difficult to treat due to suboptimal response. A breakthrough in the treatment of HCV-infected patients, including those with GT4 infection, was the introduction of direct-acting antiviral drugs. CONCLUSIONS The availability of safe and effective therapy has created a real opportunity for HCV eradication in line with the goal set by the World Health Organization. An example of a country where this is happening is Egypt, where GT4 accounts for more than 90% of HCV infections. There, broad access to therapy has been effectively supported by population-based screening.
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Affiliation(s)
- Michał Brzdęk
- Collegium Medicum, Jan Kochanowski University, Kielce, Poland.
| | | | - Robert Flisiak
- Department of Infectious Diseases and Hepatology, Medical University of Bialystok, Bialystok, Poland
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Zago D, Pozzetto I, Pacenti M, Brancaccio G, Ragolia S, Basso M, Parisi SG. Circulating Genotypes of Hepatitis C Virus in Italian Patients before and after the Application of Wider Access Criteria to HCV Treatment. Open Microbiol J 2022. [DOI: 10.2174/18742858-v16-e2205300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Aims:
The aims of this study were to report a description of the HCV genotype distribution in adult Italians and non-Italians subjects tested in the Microbiology and Virology Unit of the Padova University Hospital from January 2016 (after about one year from the availability of DAAs) to December 2018 and to compare genotype frequencies in the 12-month period before and after the application of the wider access criteria to HCV treatment.
Background:
Hepatitis C virus (HCV) infection is a major health problem, but the availability of direct-acting antivirals (DAAs) has dramatically changed HCV disease natural history because these drugs have excellent tolerability and they can eliminate the virus in almost all treated patients.
Objective:
The objective was to describe the circulating HCV genotypes in high-income countries in order to help health authorities in the future organization of DAAs treatment strategies; this aspect is not limited to drug prescription, but it also includes the identification of infected individuals who are undiagnosed, which is the limiting step to achieve the HCV elimination goal.
Methods:
Adult patients who had HCV genotype performed from 01/01/16 to 31/12/18 in the Microbiology and Virology Unit of the Padova University Hospital were included in the study: the two 12-month periods were April 2016-March 2017 (before period, BEF) and April 2017-March 2018 (after period, AFT).
Results:
Italians were 2168 (91.2%) and non-Italians were 208 (8.8%). Italians median age was 55 years, and females were older. Italians had a lower genotype 1 (p=0.0012) and higher genotype 2 frequencies (p<0.0001) with respect to non-Italians. Most patients aged 38-67 years: Italians were more represented in class age 48-57 years (p=0.0138), 68-77 years (p=0.001) and ≥78 years (p<0.0001); subjects with genotype 3 were the youngest and those with genotype 2 the oldest. Italian patients typed in the AFT and BEF were comparable; only a lower frequency of genotype 1 males and younger age in genotype 3 were found in AFT.
Conclusion:
Italians were older with respect to non-Italians, which implies that a different age based screening program could be applied. Italian genotype 3 subjects represent a cohort to focus on for the risk of therapeutic failure. Patients tested after the extended criteria for HCV treatment were very similar to those tested before, suggesting that HCV burden in Italians is higher than expected.
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The European Prevalence of Resistance Associated Substitutions among Direct Acting Antiviral Failures. Viruses 2021; 14:v14010016. [PMID: 35062220 PMCID: PMC8781716 DOI: 10.3390/v14010016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 12/19/2022] Open
Abstract
Background: Approximately 71 million people are still in need of direct-acting antiviral agents (DAAs). To achieve the World Health Organization Hepatitis C elimination goals, insight into the prevalence and influence of resistance associated substitutions (RAS) is of importance. Collaboration is key since DAA failure is rare and real-life data are scattered. We have established a European collaboration, HepCare, to perform in-depth analysis regarding RAS prevalence, patterns, and multiclass occurrence. Methods: Data were extracted from the HepCare cohort of patients who previously failed DAA therapy. Geno—and subtypes were provided by submitters and mostly based on in-house assays. They were reassessed using the Comet HCV subtyping tool. We considered RAS to be relevant if they were associated with DAA failure in vivo previously reported in literature. Results: We analyzed 938 patients who failed DAA therapy from ten different European countries. There were 239 genotypes (GT) 1a, 380 GT1b, 19 GT2c, 205 GT3a, 14 GT4a, and 68 GT4d infections. Several unusual subtypes (n = 15) (GT1b/g/l, GT3b, GT4k/n/r/t) were present. RAS appeared in over 80% of failures and over a quarter had three or more RAS. Multiclass RAS varied over target region and genotype between 0–48%. RAS patterns such as the Q30R + L31M and Q30R + Y93H in GT1a, the L31V + Y93H and L31V + Y93H for GT1b, and A30K + L31M and A30K/V + Y93H for GT3a all occurred with a prevalence below 5%. Conclusion: RAS occur frequently after DAA failures and follow a specific genotype and drug related pattern. Interpretation of the influence of RAS on retreatment is challenging due to various patterns, patients’ characteristics, and previous treatment history. Moving towards HCV elimination, an ongoing resistance surveillance is essential to track the presence of RAS, RAS patterns and gather data for a re-treatment algorithm.
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Minosse C, Salichos L, Taibi C, Luzzitelli I, Nardozi D, Capobianchi MR, D’Offizi G, McPhee F, Garbuglia AR. Phylogenetic and Phylodynamic Analyses of HCV Strains Circulating among Patients Using Injectable Drugs in Central Italy. Microorganisms 2021; 9:microorganisms9071432. [PMID: 34361868 PMCID: PMC8304011 DOI: 10.3390/microorganisms9071432] [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: 05/19/2021] [Revised: 06/21/2021] [Accepted: 06/25/2021] [Indexed: 01/13/2023] Open
Abstract
Approximately 71 million people worldwide are infected with the hepatitis C virus (HCV). Injectable drug use represents the most common route of transmission in Europe and other developed countries. We studied the molecular characteristics of the HCV infection among mono-infected people who used drugs (PWUD) in Italy. Among 208 PWUD with anti-HCV antibodies, 101 (48.6%) were HCV RNA-positive, the majority (47%) were infected with the HCV genotype (Gt)1a, followed by Gt3a (34.9%), Gt4 (9.1%), Gt1b (4.5%), and Gt2 (4.5%). Bayesian phylogenetic analyses of clustered HCV NS5B sequences from 66 HCV-positive PWUDs with available plasma samples indicated age and neighborhood proximity as the most common characteristics between closely related HCV strains. Population dynamics, as measured by a coalescent Bayesian skyline analysis, revealed an increase in HCV Gt1a infections from the mid-1980s to mid-1990s. While HCV Gt3a infections were first detected in the 1980s, patient numbers with this genotype subtype remained relatively constant. For both Gt1a and Gt3a, Birth–Death Bayesian Skyline analyses produced higher reproduction numbers post 2014. For earlier time intervals, slow growths were observed for both Gt1a and Gt3a with reproduction numbers (Re) of approximately 1. The evolutionary rates for Gt1a and Gt3a were estimated as 2.23 × 10−4 and 3.85 × 10−4, respectively.
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Affiliation(s)
- Claudia Minosse
- Laboratory of Virology, “Lazzaro Spallanzani” National Institute for Infectious Diseases, IRCCS, 00149 Rome, Italy; (C.M.); (D.N.); (M.R.C.)
| | - Leonidas Salichos
- Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06520, USA;
- Biological and Chemical Sciences, New York Institute of Technology, New York, NY 11568, USA
| | - Chiara Taibi
- Hepatology and Infectious Diseases Unit, “Lazzaro Spallanzani” National Institute for Infectious Diseases, IRCCS, 00149 Rome, Italy; (C.T.); (I.L.); (G.D.)
| | - Ilaria Luzzitelli
- Hepatology and Infectious Diseases Unit, “Lazzaro Spallanzani” National Institute for Infectious Diseases, IRCCS, 00149 Rome, Italy; (C.T.); (I.L.); (G.D.)
| | - Daniela Nardozi
- Laboratory of Virology, “Lazzaro Spallanzani” National Institute for Infectious Diseases, IRCCS, 00149 Rome, Italy; (C.M.); (D.N.); (M.R.C.)
| | - Maria Rosaria Capobianchi
- Laboratory of Virology, “Lazzaro Spallanzani” National Institute for Infectious Diseases, IRCCS, 00149 Rome, Italy; (C.M.); (D.N.); (M.R.C.)
| | - Gianpiero D’Offizi
- Hepatology and Infectious Diseases Unit, “Lazzaro Spallanzani” National Institute for Infectious Diseases, IRCCS, 00149 Rome, Italy; (C.T.); (I.L.); (G.D.)
| | - Fiona McPhee
- Bristol-Myers Squibb Research and Development, Cambridge, MA 02142, USA;
| | - Anna Rosa Garbuglia
- Laboratory of Virology, “Lazzaro Spallanzani” National Institute for Infectious Diseases, IRCCS, 00149 Rome, Italy; (C.M.); (D.N.); (M.R.C.)
- Correspondence: ; Tel.: +39-06-55170692
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Zarębska-Michaluk D. Genotype 3-hepatitis C virus’ last line of defense. World J Gastroenterol 2021; 27:1006-1021. [PMID: 33776369 PMCID: PMC7985731 DOI: 10.3748/wjg.v27.i11.1006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/24/2021] [Accepted: 03/01/2021] [Indexed: 02/06/2023] Open
Abstract
Chronic infection with hepatitis C virus (HCV) is one of the leading causes of liver disease globally, affecting approximately 71 million people. The majority of them are infected with genotype (GT) 1 but infections with GT3 are second in frequency. For many years, GT3 was considered to be less pathogenic compared to other GTs in the HCV family due to its favorable response to interferon (IFN)-based regimen. However, the growing evidence of a higher rate of steatosis, more rapid progression of liver fibrosis, and lower efficacy of antiviral treatment compared to infection with other HCV GTs has changed this conviction. This review presents the specifics of the course of GT3 infection and the development of therapeutic options for GT3-infected patients in the era of direct-acting antivirals (DAA). The way from a standard of care therapy with pegylated IFN-alpha (pegIFNα) and ribavirin (RBV) through a triple combination of pegIFNα + RBV and DAA to the highly potent IFN-free pangenotypic DAA regimens is discussed along with some treatment options which appeared to be dead ends. Although the implementation of highly effective pangenotypic regimens is the most recent stage of revolution in the treatment of GT3 infection, there is still room for improvement, especially in patients with liver cirrhosis and those who fail to respond to DAA therapies, particularly those containing inhibitors of HCV nonstructural protein 5A.
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Affiliation(s)
- Dorota Zarębska-Michaluk
- Department of Infectious Diseases, Jan Kochanowski University, Kielce 25-369, Świętokrzyskie, Poland
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Chronic hepatitis C virus infection in the Czech Republic and Slovakia: an analysis of patient and virus characteristics. Int J Public Health 2020; 65:1723-1735. [PMID: 33040165 DOI: 10.1007/s00038-020-01496-y] [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: 04/14/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES The MOSAIC study gathered data on chronic hepatitis C virus (HCV) infection and its treatment in various countries worldwide. Here we summarise patient and HCV characteristics in the Czech Republic and Slovakia. METHODS MOSAIC was an observational study that included patients with chronic HCV infection untreated at the time of enrolment. Study collected and descriptively analysed patient demographics, disease stage and viral characteristics. Data were collected between February 2014 to October 2014. RESULTS Among 220 patients enrolled, 51.4% were treatment-naïve. The most prevalent HCV genotype was G1 (78.4%), followed by G3 (19.7%). Higher prevalence of G1 was found in treatment-experienced patients (94.3%) compared to treatment-naïve (63.4%). Most participants (67.7%) presented viral RNA load of ≥ 800,000 IU/mL. Liver cirrhosis was reported in 24.5% of patients. Higher HCV RNA load and duration of HCV infection correlated with the degree of liver fibrosis. Anti-HCV interferon-based treatments were initiated in 88.2% of participants. CONCLUSIONS The study confirmed significant changes in the HCV genotypes partition with G3 genotype rapidly increasing in both countries, with possible impact on the WHO eradication initiative and treatment selection.
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Aziz H, Fatima S, Faheem M. Indeterminate Prediction of Hepatitis C Virus Genotype by Commercial Real-Time Polymerase Chain Reaction Assay Resolving by Sequencing to Avoid the Consequence of Inaccurate Typing. Viral Immunol 2020; 33:507-513. [PMID: 32429831 DOI: 10.1089/vim.2019.0162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pakistan is ranked second highest after Egypt in hepatitis C virus (HCV) infection. Accurate typing is mandatory to be compliant with the World Health Organization strategy to eliminate HCV infection in 2030. We characterized the HCV genotypes using Abbott real-time polymerase chain reaction assay and indeterminate samples were sequenced. We also investigated the distribution of HCV genotype among different age groups and gender in chronic HCV patients. One thousand thirteen samples were tested for HCV genotyping using Abbott real-time HCV genotyping assay. RNA extraction from plasma was done using the m2000sp platform. The amplification and detection of genotypes was done on m2000rt instrument. The lower limit of detection assay is 500 IU/mL. The indeterminate genotypes were analyzed by sequencing of the NS5B region. We found genotype 1 in 1.68%, genotype 1b in 0.89%, genotype 1a in 0.79%, genotype 2 in 0.6, genotype 3 in 94.37%, genotype 4 in 0.4%, genotype 5 in 0.09%, and indeterminate genotype result were found in 1.18%. Abbott assay could not identify 12 samples of genotype 3 (1.18%) and gave the indeterminate result. It also fails to assign some of the samples of genotype 1 into 1a and 1b. The indeterminate genotypes were resolved by sequencing followed by phylogenetic analysis. Genotype 3 is the predominant genotype and significantly higher in females as compared with males. Genotype 1a is more common in males than in females. Indeterminate HCV genotypes on sequencing analysis identify as genotype 3a and likewise subtype of genotype1 as 1a.
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Affiliation(s)
- Hafsa Aziz
- Nuclear Medicine, Oncology, and Radiotherapy Institute, Islamabad, Pakistan
| | - Shazia Fatima
- Nuclear Medicine, Oncology, and Radiotherapy Institute, Islamabad, Pakistan
| | - Mohammad Faheem
- Nuclear Medicine, Oncology, and Radiotherapy Institute, Islamabad, Pakistan
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Kjellin M, Kileng H, Akaberi D, Palanisamy N, Duberg AS, Danielsson A, Kristiansen MG, Nöjd J, Aleman S, Gutteberg T, Goll R, Lannergård A, Lennerstrand J. Effect of the baseline Y93H resistance-associated substitution in HCV genotype 3 for direct-acting antiviral treatment: real-life experience from a multicenter study in Sweden and Norway. Scand J Gastroenterol 2019; 54:1042-1050. [PMID: 31424972 DOI: 10.1080/00365521.2019.1652846] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: The NS5A resistance-associated substitution (RAS) Y93H is found quite frequently (5-10%) at baseline in direct-acting antiviral agents (DAA) treatment-naïve genotype (GT) 3a patients when studied by the population-sequencing method (cut-off 20%). This RAS may impair HCV DAA treatment response, since it possesses a high fold in vitro resistance to daclatasvir (DCV) and velpatasvir (VEL) in GT 3. We investigated the effect of baseline Y93H in patients with GT 3a infection on treatment outcome, with or without resistance-based DAA-treatment during 2014-2017. Patients/Methods: Treatment in the intervention group (n = 130) was tailored to baseline resistance-findings by population-sequencing method. Detection of baseline Y93H above 20% prompted a prolonged treatment duration of NS5A-inhibitor and sofosbuvir (SOF) and/or addition of ribavirin (RBV). Patients without baseline Y93H in the intervention group and all patients in the control group (n = 78) received recommended standard DAA-treatment. Results: A higher sustained virologic response rate (SVR) in the intervention group was shown compared to the control group at 95.4% (124/130) and 88.5% (69/78), respectively (p = .06). All five patients with baseline Y93H in the intervention group achieved SVR with personalised treatment based on results from resistance testing; either with the addition of RBV or prolonged treatment duration (24w). In the control group, 2/4 patients with Y93H at baseline treated with ledipasvir/SOF/RBV or DCV/SOF without RBV, failed treatment. Conclusion: The results from this real-life study are in accordance with the findings of the randomised controlled trials in 2015 and the EASL-guidelines of 2016, thus, baseline Y93H impacts on DCV and VEL treatment outcome.
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Affiliation(s)
- Midori Kjellin
- Department of Medical Sciences, Section of Clinical Microbiology, Uppsala University , Uppsala , Sweden
| | - Hege Kileng
- Gastroenterology and Nutrition Research Group, Department of Clinical Medicine, UiT the Arctic University of Norway , Tromsø , Norway.,Department of Medicine, University Hospital of North Norway , Tromsø , Norway
| | - Dario Akaberi
- Department of Medical Sciences, Section of Clinical Microbiology, Uppsala University , Uppsala , Sweden
| | - Navaneethan Palanisamy
- HBIGS, University of Heidelberg , Heidelberg , Germany.,Institute of Biology II, University of Freiburg , Freiburg , Germany
| | - Ann-Sofi Duberg
- Department of Infectious Diseases, School of Medical Sciences, Faculty of Medicine and Health, Örebro University , Örebro , Sweden
| | | | - Magnhild Gangsøy Kristiansen
- Nordlandssykehuset Bodø, Department of Clinical Medicine (IKM), UiT the Artic University of Tromsø , Tromsø , Norway
| | - Johan Nöjd
- Nordlandssykehuset Bodø, Department of Clinical Medicine (IKM), UiT the Artic University of Tromsø , Tromsø , Norway
| | - Soo Aleman
- Department of Infectious Diseases, Karolinska University Hospital/Karolinska Institutet , Stockholm , Sweden
| | - Tore Gutteberg
- Research Group for Host-Microbe Interactions, Department of Medical Biology, UiT the Arctic University of Norway , Tromsø , Norway.,Department of Microbiology and Infection Control, University Hospital of North Norway , Tromsø , Norway
| | - Rasmus Goll
- Gastroenterology and Nutrition Research Group, Department of Clinical Medicine, UiT the Arctic University of Norway , Tromsø , Norway.,Department of Medicine, University Hospital of North Norway , Tromsø , Norway
| | - Anders Lannergård
- Department of Medical Sciences, Section of Infectious Diseases, Uppsala University Hospital , Uppsala , Sweden
| | - Johan Lennerstrand
- Department of Medical Sciences, Section of Clinical Microbiology, Uppsala University , Uppsala , Sweden
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Alberti A, Angarano G, Colombo M, Craxì A, Di Marco V, Di Perri G, Gaeta GB, Ippolito G, Mangia A, Pasqualetti P. Optimizing patient referral and center capacity in the management of chronic hepatitis C: Lessons from the Italian experience. Clin Res Hepatol Gastroenterol 2019; 43:190-200. [PMID: 30377096 DOI: 10.1016/j.clinre.2018.09.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/19/2018] [Accepted: 09/20/2018] [Indexed: 02/04/2023]
Abstract
AIMS In 2017 the Italian Drug Agency (Agenzia Italiana del Farmaco, AIFA) revised the criteria for access to therapy for patients with chronic hepatitis C as part of a three-year plan to eradicate HCV. We conducted a Delphi study to determine strategies to identify and treat patients with HCV and to develop through a shared pathway, a model to manage patient referral and optimize prescription center capacity with the overall aim of increasing access to therapy. METHODS The process took place in two phases - Phase I (January 2017), before the criteria for treatment of HCV were revised and Phase II (May 2017) when AIFA developed a framework for the eradication of HCV infection in Italy. Two questionnaires were devised with Q1 administered in Phase I and Q2 in Phase II. RESULTS Q1 was sent to 823 hepatitis specialists working in 235 Italian HCV centers authorized to prescribe direct-acting antiviral drugs (DAAs). Overall, 167 centers (71%) participated with a good geographical representativeness (North 69%, Centre 74%; South and islands 70%). 548 prescribers (68.8%) provided responses to Q1 and 443 (80%) specialists who responded to Q1 completed Q2. Over 70% considered that to meet the new therapy targets local/regional networks need to be consolidated and reinforced with GPs providing the 'missing link' in current regional networks. Adherence to therapy was considered important by 75% of clinicians with reduction in follow-up intervals/length considered important by 65% - to free up staff/resources to manage increasing numbers of new patients. About 80% of respondents stated that medical personnel were principally involved in follow-up with follow-up having a significant impact on center capacity. CONCLUSION Enhancing patient referral, the need for an increased role of GPs, increasing center capacity in particular medical personnel in outpatient centers and greater liaison between Hub centers and healthcare professionals currently managing high-risk groups as yet untreated, were factors that need to be streamlined in order to meet treatment targets for eradication of HCV.
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Affiliation(s)
- Alfredo Alberti
- Dipartimento di Medicina Molecolare, Università di Padova, Padova, Italy.
| | - Gioacchino Angarano
- Unità Operativa di Malattie Infettive, Azienda Ospedaliera "Ospedale Policlinico Consorziale" Università di Bari, Bari, Italy.
| | - Massimo Colombo
- Centro di Ricerca Traslazionale in Epatologia, Humanitas Research Hospital, Rozzano, Italy.
| | - Antonio Craxì
- Sezione di Gastroenterologia & Epatologia, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Palermo, Italy.
| | - Vito Di Marco
- Sezione di Gastroenterologia & Epatologia, Dipartimento Biomedico di Medicina Interna e Specialistica, Università di Palermo, Palermo, Italy.
| | - Giovanni Di Perri
- Clinica di Malattie Infettive, Dipartimento di Scienze Mediche, Università degli Studi di Torino, Torino, Italy.
| | - Giovanni Battista Gaeta
- UOC Malattie Infettive ed Epatiti Virali, Università della Campania Luigi Vanvitelli, Napoli, Italy.
| | - Giuseppe Ippolito
- Istituto Nazionale per le Malattie Infettive, IRCCS, Lazzaro Spallanzani, Roma, Italy.
| | - Alessandra Mangia
- Unità Operativa Complessa di Epatologia dell'Ospedale "Casa Sollievo della Sofferenza", San Giovanni Rotondo, Italy.
| | - Patrizio Pasqualetti
- Fondazione Fatebenefratelli per la Ricerca e la Formazione Sanitaria e Sociale, Roma, Italy.
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12
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Sebastiani M, Milazzo L, Atzeni F, Vacchi C, Manfredi A, Quartuccio L, Scirè C, Gaeta GB, Lapadula G, Armignacco O, Tavio M, D'Angelo S, Meroni P, Bazzichi L, Grassi W, Mathieu A, Mastroianni C, Sagnelli E, Santantonio T, Foppa CU, Puoti M, Sarmati L, Airò P, Epis OM, Scrivo R, Gargiulo M, Riva A, Ciancio G, Zehender G, Taliani G, Meroni L, Sollima S, Sarzi-Puttini P, Galli M. Italian consensus recommendations for the management of hepatitis C infection in patients with rheumatoid arthritis. Mod Rheumatol 2019; 29:895-902. [PMID: 30582388 DOI: 10.1080/14397595.2018.1558918] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Objectives: The recent introduction of direct-acting antiviral agents (DAAs) which can eliminate Hepatitis C virus (HCV) had revolutionized the treatment of HCV infections also in a complex clinical setting such as the patients with rheumatoid arthritis (RA). HCV elimination is also opportune due to the availability of more efficient immunosuppressive drugs, whose effect on the course of HCV infection is largely unknown.Methods: Consensus process was endorsed by the Italian Society of Rheumatology (SIR) and the Italian Society of Infectious and Tropical Diseases (SIMIT) to review the available evidence and produce practical, hospital-wide recommendations. The consensus panel consisted of 18 infectious diseases consultants, 20 rheumatologists and one clinical epidemiologist, who used the criteria of the Oxford Centre for Evidence-based Medicine to assess the quality of the evidence and the strength of their recommendations.Results: A core-set of statements about management of patients with RA and infection by HCV have been developed to help clinicians in their clinical practice.Conclusions: A screening for HCV should be performed in all RA patients and it is mandatory before starting an immunosuppressive therapy. Finally, a DAA treatment should be considered in all HCV-infected patients.Significance and InnovationsHCV antibodies should be investigated at the time of diagnosis of RA and, in any case, before starting immunosuppressive therapy with disease-modifying antirheumatic drugs (DMARDs).HCV eradication with DAA should be attempted as soon as possible, depending on patient conditions allowing a continuous oral treatment lasting 8-12 weeksConventional and biological DMARDs are allowed in patients with HCV infection, but they should be used cautiously in presence of advanced liver disease.
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Affiliation(s)
- Marco Sebastiani
- Rheumatology Unit, Department of Medical and Surgical Science, University of Modena, Azienda Policlinico of Modena, Modena, Italy
| | - Laura Milazzo
- Infectious Diseases Unit, University of Milano, Luigi Sacco Hospital, Milan, Italy
| | - Fabiola Atzeni
- Rheumatology Unit, L. Sacco University Hospital, Milan, Italy
| | - Caterina Vacchi
- Rheumatology Unit, Department of Medical and Surgical Science, University of Modena, Azienda Policlinico of Modena, Modena, Italy
| | - Andreina Manfredi
- Rheumatology Unit, Department of Medical and Surgical Science, University of Modena, Azienda Policlinico of Modena, Modena, Italy
| | - Luca Quartuccio
- Department of Medical and Biological Sciences, Rheumatology Clinic, University of Udine, Udine, Italy
| | - Carlo Scirè
- Epidemiology Unit, Italian Society for Rheumatology (SIR), Milan, Italy
| | - Giovanni Battista Gaeta
- Infectious Diseases and Viral Hepatitis Unit, Department of Internal and Specialistic Medicine, Second University of Naples, Naples, Italy
| | - Giovanni Lapadula
- Department of Medicine - Rheumatology Unit, Medical School, University of Bari, Bari, Italy
| | | | - Marcello Tavio
- Unit of Emerging and Immunosuppressed Infectious Diseases, Department of Gastroenterology and Transplantation, Azienda Ospedaliero-Universitaria "Ospedali Riuniti", Torrette Ancona, Italy
| | - Salvatore D'Angelo
- Rheumatology Department of Lucania, San Carlo Hospital of Potenza and Madonna delle Grazie Hospital of Matera, Potenza, Italy
| | - Pierluigi Meroni
- Division of Rheumatology, Department of Clinical Sciences and Community Health, Gaetano Pini Orthopedic Institute, University of Milan, Milan, Italy
| | - Laura Bazzichi
- Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Walter Grassi
- Department of Rheumatology, Università Politecnica delle Marche, Ospedale "C. Urbani", Jesi Ancona, Italy
| | - Alessandro Mathieu
- Rheumatology Unit, University Clinic and AOU of Cagliari, Cagliari, Italy
| | - Claudio Mastroianni
- Infectious Diseases Unit, Department Public Health and Infectious Disease, "Sapienza" University of Rome, Rome, Italy
| | - Evangelista Sagnelli
- Department of Mental Health and Public Medicine, Second University of Naples, Naples, Italy
| | | | - Caterina Uberti Foppa
- Department of Infectious Diseases, San Raffaele Scientific Institute, Università Vita-Salute, Milan, Italy
| | - Massimo Puoti
- Department of Infectious Diseases, AO Niguarda Ca' Granda, Milano, Italy
| | - Loredana Sarmati
- Clinical Infectious Diseases, Tor Vergata University, Rome, Italy
| | - Paolo Airò
- Rheumatology and Clinical Immunology Unit, Spedali Civili of Brescia, Brescia, Italy
| | | | - Rossana Scrivo
- Department of Internal Medicine and Medical Specialties-Rheumatology Unit, Sapienza University of Rome, Rome, Italy
| | - Miriam Gargiulo
- Third Department of Infectious Diseases- D. Cotugno Hospital- AORN dei Colli, Naple, Italy
| | - Agostino Riva
- Rheumatology Unit, L. Sacco University Hospital, Milan, Italy
| | - Giovanni Ciancio
- Rheumatology Unit, Department of Medical Sciences, University of Ferrara and Sant'Anna University Hospital, Ferrara, Italy
| | | | - Gloria Taliani
- Infectious Diseases Unit, Department Public Health and Infectious Disease, "Sapienza" University of Rome, Rome, Italy
| | - Luca Meroni
- Rheumatology Unit, L. Sacco University Hospital, Milan, Italy
| | | | | | - Massimo Galli
- Rheumatology Unit, L. Sacco University Hospital, Milan, Italy
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13
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Karabulut N, Alacam S, Yolcu A, Onel M, Agacfidan A. Distribution of hepatitis C virus genotypes in Istanbul, Turkey. Indian J Med Microbiol 2018; 36:192-196. [PMID: 30084409 DOI: 10.4103/ijmm.ijmm_17_381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Purpose The hepatitis C virus (HCV) has seven main genotypes and multiple subtypes. The distribution of HCV genotypes varies across geographical regions worldwide. Updated estimates of HCV genotype distributions have a critical importance for developing strategies to manage or eliminate HCV infection. The aim of this study was to determine the distribution of HCV genotypes in patients with HCV admitted to a university hospital in Istanbul, Turkey. Materials and Methods A total of 412 HCV RNA positive patients with 46.6% of males and 53.4% of females between January 2013 and September 2016 were included in the study. Genotyping of HCV of the study population was performed by a commercial reverse hybridisation line probe-based assay. Results Genotype 1 (82.5%) was dominant genotype, followed by genotype 3 (10.7%), genotype 2 (4.6%) and genotype 4 (2.2%). Among patients with genotype 1, subtype 1a, 1b and undetermined subtype were 6.3%, 38.8% and 37.4%, respectively. It was observed that genotype proportion was dependent on gender and age of the patients. Genotype 1 and genotype 2 were more prevalent in females, whereas genotypes 3 and 4 were more prevalent in males. Genotype 1 in the older patients and genotype 3 in the younger patients were more prevalent. Conclusion The majority of patients with HCV infection had genotype 1 (82.5%), followed by genotype 3, 2 and 4. Monitoring the change in HCV genotype distribution is critical for the development of effective strategies for HCV elimination.
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Affiliation(s)
- Nuran Karabulut
- Department of Medical Microbiology, Division of Virology and Fundamental Immunology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Sema Alacam
- Department of Medical Microbiology, Division of Virology and Fundamental Immunology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ayfer Yolcu
- Department of Medical Microbiology, Division of Virology and Fundamental Immunology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Mustafa Onel
- Department of Medical Microbiology, Division of Virology and Fundamental Immunology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ali Agacfidan
- Department of Medical Microbiology, Division of Virology and Fundamental Immunology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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14
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Bouacida L, Suin V, Hutse V, Boudewijns M, Cartuyvels R, Debaisieux L, De Laere E, Hallin M, Hougardy N, Lagrou K, Oris E, Padalko E, Reynders M, Roussel G, Senterre JM, Stalpaert M, Ursi D, Vael C, Vaira D, Van Acker J, Verstrepen W, Van Gucht S, Kabamba B, Quoilin S, Muyldermans G. Distribution of HCV genotypes in Belgium from 2008 to 2015. PLoS One 2018; 13:e0207584. [PMID: 30517127 PMCID: PMC6281185 DOI: 10.1371/journal.pone.0207584] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 11/03/2018] [Indexed: 01/25/2023] Open
Abstract
Background The knowledge of circulating HCV genotypes and subtypes in a country is crucial to guide antiviral therapy and to understand local epidemiology. Studies investigating circulating HCV genotypes and their trends have been conducted in Belgium. However they are outdated, lack nationwide representativeness or were not conducted in the general population. Methods In order to determine the distribution of different circulating HCV genotypes in Belgium, we conducted a multicentre study with all the 19 Belgian laboratories performing reimbursed HCV genotyping assays. Available genotype and subtype data were collected for the period from 2008 till 2015. Furthermore, a limited number of other variables were collected: some demographic characteristics from the patients and the laboratory technique used for the determination of the HCV genotype. Results For the study period, 11,033 unique records collected by the participating laboratories were used for further investigation. HCV genotype 1 was the most prevalent (53.6%) genotype in Belgium, with G1a and G1b representing 19.7% and 31.6%, respectively. Genotype 3 was the next most prevalent (22.0%). Further, genotype 4, 2, and 5 were responsible for respectively 16.1%, 6.2%, and 1.9% of HCV infections. Genotype 6 and 7 comprise the remaining <1%. Throughout the years, a stable distribution was observed for most genotypes. Only for genotype 5, a decrease as a function of the year of analysis was observed, with respectively 3.6% for 2008, 2.3% for 2009 and 1.6% for the remaining years. The overall M:F ratio was 1.59 and was mainly driven by the high M:F ratio of 3.03 for patients infected with genotype 3. Patients infected with genotype 3 are also younger (mean age 41.7 years) than patients infected with other genotypes (mean age above 50 years for all genotypes). The patients for whom a genotyping assay was performed in 2008 were younger than those from 2015. Geographical distribution demonstrates that an important number of genotyped HCV patients live outside the Belgian metropolitan cities. Conclusion This national monitoring study allowed a clear and objective view of the circulating HCV genotypes in Belgium and will help health authorities in the establishment of cost effectiveness determinations before implementation of new treatment strategies. This baseline characterization of the circulating genotypes is indispensable for a continuous surveillance, especially for the investigation of the possible impact of migration from endemic regions and prior to the increasing use of highly potent direct-acting antiviral (DAA) agents.
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Affiliation(s)
- Lobna Bouacida
- Sciensano, Laboratory of medical microbiology, Brussels, Belgium
| | - Vanessa Suin
- Sciensano, Viral diseases, Brussels, Belgium
- National reference center for hepatitis viruses, Belgium, Belgium
| | - Veronik Hutse
- Sciensano, Viral diseases, Brussels, Belgium
- National reference center for hepatitis viruses, Belgium, Belgium
| | | | | | | | | | | | - Nicolas Hougardy
- Clin. Sud Luxembourg, Site St-Joseph Labo D'analyses Médicales, Arlon, Belgium
| | - Katrien Lagrou
- UZ Leuven, Clinical Department of Laboratory Medicine, Leuven, and-KU Leuven, Department of Microbiology and Immunology, Leuven, Belgium
| | - Els Oris
- Ziekenhuis Oost-Limburg, Labo Klinische Biologie, Genk, Belgium
| | - Elizaveta Padalko
- UZ Ghent, Clinical Biology–Medical Microbiology Laboratory, Ghent, Belgium
| | - Marijke Reynders
- AZ Sint-Jan Brugge-Oostende AV, Laboratory Medicine, Brugge, Belgium
| | - Gatien Roussel
- Clinique St. Pierre, Laboratoire De Biologie Clinique, Ottignies, Belgium
| | | | | | - Dominique Ursi
- University Hospital Antwerp, Laboratory of Molecular Diagnostics in Microbiology, Antwerp, Belgium
| | - Carl Vael
- AZ KLINA, Clinical Laboratory, Brasschaat, Belgium
| | - Dolores Vaira
- CHU de Liège, Laboratoire de Référence SIDA-ULg, Liège, Belgium
| | | | | | - Steven Van Gucht
- Sciensano, Viral diseases, Brussels, Belgium
- National reference center for hepatitis viruses, Belgium, Belgium
| | - Benoit Kabamba
- National reference center for hepatitis viruses, Belgium, Belgium
- Cliniques Universitaires Saint-Luc, Labo Biologie Clinique Ria, Brussels, Belgium
| | - Sophie Quoilin
- Sciensano, Epidemiology of infectious diseases, Brussels, Belgium
| | - Gaëtan Muyldermans
- Sciensano, Epidemiology of infectious diseases, Brussels, Belgium
- * E-mail:
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15
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Akaberi D, Bergfors A, Kjellin M, Kameli N, Lidemalm L, Kolli B, Shafer RW, Palanisamy N, Lennerstrand J. Baseline dasabuvir resistance in Hepatitis C virus from the genotypes 1, 2 and 3 and modeling of the NS5B-dasabuvir complex by the in silico approach. Infect Ecol Epidemiol 2018; 8:1528117. [PMID: 30319736 PMCID: PMC6179053 DOI: 10.1080/20008686.2018.1528117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/13/2018] [Indexed: 02/08/2023] Open
Abstract
Background: Current combination treatments with direct-acting antiviral agents (DAAs) can cure more than 95% of hepatitis C virus (HCV) infections. However, resistance-associated substitutions (RASs) may emerge and can also be present in treatment-naïve patients. Methods, results and discussion: In this study, a semi-pan-genotypic population sequencing method was developed and used to assess all NS5B amino acid variants between residue positions 310 and 564. Our method successfully sequenced more than 90% of genotype (GT) 1a, 1b, 2b and 3a samples. By using the population sequencing method with a cut-off of 20%, we found the dasabuvir RASs A553V and C445F to be a baseline polymorphism of GT 2b (8 out of 8) and GT 3a (18 out of 18) sequences, respectively. In GT 1a and 1b treatment-naïve subjects (n=25), no high-fold resistance polymorphism/RASs were identified. We further predicted dasabuvir’s binding pose with the NS5B polymerase using the in silico methods to elucidate the reasons associated with the resistance of clinically relevant RASs. Dasabuvir was docked at the palm-I site and was found to form hydrogen bonds with the residues S288, I447, Y448, N291 and D318. The RAS positions 316, 414, 448, 553 and 556 were found to constitute the dasabuvir binding pocket.
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Affiliation(s)
- Dario Akaberi
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden.,Department of Medical Biochemistry and Microbiology, Zoonosis Science Center, Uppsala University, Uppsala, Sweden
| | - Assar Bergfors
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Midori Kjellin
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Nader Kameli
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden.,Department of Medical Microbiology, NUTRIM school of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Louise Lidemalm
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Bhavya Kolli
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Robert W Shafer
- Department of Medicine, Division of Infectious Diseases, Stanford University, Stanford, CA, USA
| | - Navaneethan Palanisamy
- HBIGS, University of Heidelberg, Heidelberg, Germany.,Institute of Biology II, University of Freiburg, Freiburg, Germany
| | - Johan Lennerstrand
- Clinical Microbiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
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16
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Wahid B, Waqar M, Rasool N, Rehman Z, Saeed J, Wasim M, Khan MA, Ali A, Rafique S, Sajjad, Idrees M. Recent trends in molecular epidemiology of Hepatitis C virus in Mardan, KPK Pakistan. INFECTION GENETICS AND EVOLUTION 2018; 66:66-71. [PMID: 30201500 DOI: 10.1016/j.meegid.2018.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 02/07/2023]
Abstract
To determine the genotypic distribution of HCV, frequency of risk factors involved in its transmission, and correlation of genotype with viral load in Mardan population which is the second largest city of Khyber Pakhtunkhwa (KPK), Pakistan. Blood samples of 1140 were collected from different regions of Mardan and major proportion of recruited patients were internally displaced people (IDPs), refugees, and slum dwellers. Complete patient's history was analyzed to assess the possible risks involved in HCV transmission. Viral genotype was determined by PCR (polymerase chain reaction) whereas, HCV RNA was measured by qRT-PCR. Data was analyzed using SPSS statistical software. Our results indicate 3a as the most abundant subtype in Mardan population followed by 3b, 2a, 2b, 4a, untypeable, mixed, 1a, and 1b. In contrast to previous findings, genotype 1 was the least prevalent genotype and the overall prevalence of HCV in Mardan population was significantly higher in females (n = 687, 60.2%) than males (n = 453, 39.7%). Significant difference between-genotypes and gender was observed in genotype 1 (p < .034) and genotype 3 (p < .004). The mean age was 44 (SD ± 9.51). The most frequently found mixed genotype was 3a + 1b and mixed genotype was more prevalent in males. The proportion of middle-aged people (41-49 years) was higher whereas, older and younger people were least infected with HCV. This is the first study that showed substantial correlation of genotype 3 with low and intermediate viral load in Mardan population. Moreover, high and extremely high viral load was associated with other genotypes. Our findings showed that most of the patients who experienced high and extremely high viremia in their blood were males and belonged to Takhat Bhai and Mardaan regions. There were significant difference in the prevalence of HCV genotype 3a (p = .001) and genotype 3b (p = .005) in different regions of Mardan. Pre-treatment viral load is significantly high (p 0.001) in tehsil Mardan patients infected with HCV genotype 3 as compared to other genotypes. Unsafe medical practices such as medical and dental surgeries, intravenous drug use, and blood transfusions were the main risk factors for HCV transmission in Mardan, KPK Pakistan. This study gives clear insights into the epidemiological status of HCV in Mardan population. Genotype 3 is correlated with low and intermediate viral load whereas high viral loads were revealed among patients infected with genotypes other than genotype 3. In the absence of better data and robust epidemiological information, this detailed analysis of HCV genotypes with special reference to risk factors, pretreatment viral load, gender, and age will provide the baseline data for development of optimal HCV eradication and preventive strategies.
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Affiliation(s)
- Braira Wahid
- Department of Life Sciences, School of Science, University of Management and Technology, Lahore, Pakistan.
| | - Muhammad Waqar
- Genome Centre for Molecular Based Diagnostics and Research, Cl-25 Block B Al-Sudais Plaza, Abdalian Cooperative Society, Lahore, Pakistan
| | - Nouman Rasool
- Department of Life Sciences, School of Science, University of Management and Technology, Lahore, Pakistan
| | - Zobaria Rehman
- Genome Centre for Molecular Based Diagnostics and Research, Cl-25 Block B Al-Sudais Plaza, Abdalian Cooperative Society, Lahore, Pakistan
| | - Jamaluddin Saeed
- Department of Medicine, Khyber Teaching Hospital, Peshawar, KPK, Pakistan
| | - Muhammad Wasim
- Department of Medicine, Khyber Teaching Hospital, Peshawar, KPK, Pakistan
| | - Muhammad Arif Khan
- Departments of Medicine, District Head Quarter Hospital, Mardan, Khyber Paktunkhwa, Pakistan
| | - Amjad Ali
- Centre for Applied Molecular Biology (CAMB), 87-West Canal Bank Road, Thokar Niaz Baig, University of the Punjab, Lahore, Pakistan
| | - Shazia Rafique
- Division of Molecular Virology and Diagnostics, Center of Excellence in Molecular Biology (CEMB), 87-West Canal Bank Road, Thokar Niaz Baig, University of the Punjab, Lahore, Pakistan
| | - Sajjad
- Genome Centre for Molecular Based Diagnostics and Research, Cl-25 Block B Al-Sudais Plaza, Abdalian Cooperative Society, Lahore, Pakistan
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17
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Kjellin M, Wesslén T, Löfblad E, Lennerstrand J, Lannergård A. The effect of the first-generation HCV-protease inhibitors boceprevir and telaprevir and the relation to baseline NS3 resistance mutations in genotype 1: experience from a small Swedish cohort. Ups J Med Sci 2018; 123. [PMID: 29536805 PMCID: PMC5901468 DOI: 10.1080/03009734.2018.1441928] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The clinical experience with protease-inhibitor (PI) triple regimen appears disappointing regarding effect, side effects, high work load, and costs. This real-world study evaluates baseline and emerging resistance-associated substitutions (RASs) and their significance for treatment outcome. METHOD Thirty-six genotype 1a/b patients treated according to Swedish recommendations during 2011-2013 with triple therapy including pegylated interferon and ribavirin in combination with a protease-inhibitor, either boceprevir (BOC) or telaprevir (TVR), were retrospectively evaluated. Frozen serum samples from the patients were tested for resistance with pan-genotypic population sequencing. RESULTS Overall, 56% (20/36) of the patients achieved sustained viral response (SVR). The SVR was comparable between BOC (64%; 9/14) and TVR (50%; 11/22) (p = 0.07), and the IL28B type non-CC (48%; 12/25) and CC (46%; 6/13) (p = 0.77). The SVR was higher in patients without cirrhosis (89.5%; 17/19) (p < 0.0005), in treatment-naïve patients (70%; 14/20) (p = 0.02), and those with low viral load (<800,000 IU/mL) (66.7%; 8/12) (p < 0.0002), compared to those with cirrhosis (17.6%; 3/17), treatment-experienced (37.5%; 6/16), and high viral load (>800,000 IU/mL) (50%; 12/24). CONCLUSION PI triple regimes were highly effective in treatment-naïve patients without cirrhosis, but in this real-world cohort an inferior effect was evident in cirrhotic and treatment-experienced patients. Although tested on a limited sample, the baseline resistance testing seems to have no impact on prediction of therapy outcome. The reason could be that the baseline RASs T54S and V55A have relatively low resistance towards BOC and TVR. Emerging RASs, mainly R155K, with known high resistance to BOC and TVR were frequently found in non-responders.
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Affiliation(s)
- Midori Kjellin
- Section of Clinical Microbiology, Department of Medical Sciences, Uppsala University Hospital, Sweden
| | - Terése Wesslén
- Section of Infectious Diseases, Department of Medical Sciences, Uppsala University Hospital, Sweden
| | - Erik Löfblad
- Section of Infectious Diseases, Department of Medical Sciences, Uppsala University Hospital, Sweden
| | - Johan Lennerstrand
- Section of Clinical Microbiology, Department of Medical Sciences, Uppsala University Hospital, Sweden
| | - Anders Lannergård
- Section of Infectious Diseases, Department of Medical Sciences, Uppsala University Hospital, Sweden
- CONTACT Anders Lannergård Department of Medical Sciences, Section of Infectious Diseases, Uppsala University, S 751 85 Uppsala, Sweden
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18
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Efficacy of daclatasvir-based quadruple therapy in nonresponder patients infected by hepatitis C virus genotype 4: the ANRS HC32 QUATTRO study. Eur J Gastroenterol Hepatol 2018; 30:302-309. [PMID: 29271782 DOI: 10.1097/meg.0000000000001035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND A few direct antiviral agents have been studied in difficult-to-treat patients infected by hepatitis C virus (HCV) genotype 4 (GT4). The efficacy of daclatasvir (DCV), asunaprevir (ASV), pegylated interferon and ribavirin (Peg-IFN/RBV) association was investigated in these patients. PATIENTS AND METHODS This open-label, single-arm, phase 2 study was conducted in HCV GT4 patients who were null or partial responders to Peg-IFN/RBV. Patients received 24 weeks of DCV (60 mg, once daily), ASV (100 mg, twice daily) and Peg-IFN/RBV. The primary endpoint was sustained virologic response at post-treatment week 12 [sustained virologic response (SVR)12]. RESULTS Sixty patients were included; 45 (75%) were previous null responders and 27 (45%) had cirrhosis. The most frequent subtypes were GT4a (48%) and GT4d (27%) with 25% of the patients being infected with other subtypes such as 4c, 4r, 4f, 4k, 4j and 4q. The global SVR12 was 95% (90% confidence interval: 90.4-99.6) and 96.3% (90% confidence interval: 87.5-99.5) in cirrhotic patients. All patients achieving SVR12 also achieved SVR24. Previous Peg-IFN/RBV response, IL28b genotype, cirrhosis status or GT4 subtypes did not influence SVR12 rates. Serious adverse events occurred in 13% of the patients, four being cirrhotic and four noncirrhotic. Three (5%) patients stopped HCV therapy prematurely: one because of virologic breakthrough and two because of serious adverse events. Grade 3/4 laboratory abnormalities included leukopenia (33%), neutropenia (27%), thrombocytopenia (4%) and transaminases increase (2%). CONCLUSION Association of DCV plus ASV and peg-IFN/RBV for 24 weeks demonstrated a high rate of SVR12 in HCV GT4-infected prior nonresponders, independently of the cirrhotic status or the GT4 subtype. The safety profile was acceptable, even in cirrhotic patients.
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19
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Rossetti B, Bai F, Tavelli A, Galli M, Antinori A, Castelli F, Pellizzer G, Cozzi-Lepri A, Bonora S, Monforte AD, Puoti M, De Luca A. Evolution of the prevalence of hepatitis C virus infection and hepatitis C virus genotype distribution in human immunodeficiency virus-infected patients in Italy between 1997 and 2015. Clin Microbiol Infect 2017; 24:422-427. [PMID: 28765078 DOI: 10.1016/j.cmi.2017.07.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 07/10/2017] [Accepted: 07/24/2017] [Indexed: 12/28/2022]
Abstract
OBJECTIVES To analyse the variation of hepatitis C virus (HCV) prevalence and genotype distribution and their determinants in people living with human immunodeficiency virus (HIV) who entered care between 1997 and 2015. METHODS HIV-infected patients enrolled in ICONA who were tested for HCV antibodies (HCV-Ab) were included. RESULTS Overall 3407 of 12 135 (28.1%) were HCV-Ab+; and 735 of 12 135 (6.1%) were HBsAg+. Among patients whose HCV genotype was known, the most represented were genotypes 1 and 3. The prevalence of HCV infection decreased from 49.2% (2565/5217) during 1997-2002 to 10.2% (556/5466) during 2009-2015. The frequency of genotype 1a increased from 29.0% (264/911) to 43.0% (129/300), whereas genotype 3 decreased from 38.5% (351/911) to 27.0% (81/300). Independent predictors of HCV-Ab+ status were being female (adjusted OR (AOR) 1.23, 95% CI 1.04-1.50, p = 0.01), risk category (versus injecting drug users: men who have sex with men AOR 0.01, 95% CI 0.01-0.01, p <0.001; heterosexuals AOR 0.01, 95% CI 0.01-0.01, p <0.001; other/unknown AOR 0.02, 95% CI 0.01-0.02, p <0.001), being cared for in Central Italy (versus being cared for in Northern Italy: AOR 0.85, 95% CI 0.73-0.98, p <0.001), being Italian-born (AOR 1.44, 95% CI 1.16-1.80, p = 0.001) and being enrolled in less recent calendar years (versus 1997-2002: 2009-2015 AOR 0.23, 95% CI 0.19-0.27, p <0.001; 2003-2008 AOR 0.49, 95% CI 0.41-0.61, p <0.001). CONCLUSIONS The prevalence of HCV infection in HIV-infected patients entering into care in Italy significantly declined in more recent calendar years. After adjusting for risk factors and calendar years, HCV co-infection was more frequent in females and in those born in Italy.
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Affiliation(s)
- B Rossetti
- UOC Malattie Infettive, AOU Senese, Siena, Italy; Infectious Diseases Clinic, Catholic University of Sacred Heart, Rome, Italy.
| | - F Bai
- San Paolo Hospital, University of Milan, Milan, Italy
| | | | - M Galli
- University of Milan, Milan, Italy
| | | | - F Castelli
- University Department of Infectious and Tropical Diseases, University of Brescia and Brescia Spedali Civili General Hospital, Brescia, Italy
| | - G Pellizzer
- Infectious Diseases, Hospital of Vicenza, Vicenza, Italy
| | | | - S Bonora
- Clinic of Infectious Diseases, University of Turin, Turin, Italy
| | | | - M Puoti
- Infectious Diseases, Maggiore Hospital, Milan, Italy
| | - A De Luca
- UOC Malattie Infettive, AOU Senese, Siena, Italy; Department of Biotechnologies, University of Siena, Siena, Italy
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Meanwell NA. 2015 Philip S. Portoghese Medicinal Chemistry Lectureship. Curing Hepatitis C Virus Infection with Direct-Acting Antiviral Agents: The Arc of a Medicinal Chemistry Triumph. J Med Chem 2016; 59:7311-51. [PMID: 27501244 DOI: 10.1021/acs.jmedchem.6b00915] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The development of direct-acting antiviral agents that can cure a chronic hepatitis C virus (HCV) infection after 8-12 weeks of daily, well-tolerated therapy has revolutionized the treatment of this insidious disease. In this article, three of Bristol-Myers Squibb's HCV programs are summarized, each of which produced a clinical candidate: the NS3 protease inhibitor asunaprevir (64), marketed as Sunvepra, the NS5A replication complex inhibitor daclatasvir (117), marketed as Daklinza, and the allosteric NS5B polymerase inhibitor beclabuvir (142), which is in late stage clinical studies. A clinical study with 64 and 117 established for the first time that a chronic HCV infection could be cured by treatment with direct-acting antiviral agents alone in the absence of interferon. The development of small molecule HCV therapeutics, designed by medicinal chemists, has been hailed as "the arc of a medical triumph" but may equally well be described as "the arc of a medicinal chemistry triumph".
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Affiliation(s)
- Nicholas A Meanwell
- Department of Discovery Chemistry, Bristol-Myers Squibb Research & Development , Wallingford, Connecticut 06492, United States
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