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      Daclatasvir plus sofosbuvir, with or without ribavirin, for hepatitis C virus genotype 3 in a French early access programme

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          Abstract

          Background & Aims

          Optimally effective treatment for hepatitis C virus genotype 3 (GT3) is urgently needed, particularly in advanced liver disease. Daclatasvir plus sofosbuvir was efficacious in phase 3 studies. Real‐world data for daclatasvir+sofosbuvir in advanced GT3 infection are presented from the French Temporary Authorisation for Use programme, which allowed patients in need without other treatment options access to daclatasvir ahead of its market authorization.

          Methods

          Patients with F3/F4 fibrosis and/or extrahepatic hepatitis C virus manifestations, post‐liver transplant hepatitis C virus recurrence and/or indication for liver/kidney transplant, were treated with daclatasvir+sofosbuvir (60+400 mg daily) for a recommended duration of 24 weeks. Addition of ribavirin and/or shorter treatment was at physician's discretion. The primary efficacy analysis was sustained virological response at post‐treatment week 12 ( SVR12; modified intention‐to‐treat). Safety was assessed by spontaneous adverse event reporting.

          Results

          The efficacy population comprised 333 patients, mostly cirrhotic (77%, of whom 18% were decompensated) and treatment experienced (72%). After 24 weeks of daclatasvir+sofosbuvir, SVR12 was 89% (174/196) overall (95% CI 83.6‐92.5%), 98% (43/44) without cirrhosis (95% CI 88.2‐99.6%) and 86% (129/150) with any degree of cirrhosis (95% CI 79.5‐90.7%), without SVR12 increase in those who received additional ribavirin for 24 weeks ( SVR12 82% [50/61; 95% CI 70.5‐89.6%]). Among 516 GT3‐infected patients with safety data, 5 discontinued for adverse events and 11 died.

          Conclusions

          Daclatasvir+sofosbuvir achieved high SVR12 rates and was well tolerated in this large real‐world cohort of GT3‐infected patients with advanced liver disease, without benefit of ribavirin in those treated 24 weeks.

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          Most cited references11

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          Chemical genetics strategy identifies an HCV NS5A inhibitor with a potent clinical effect

          New drugs for hepatitis C The development of direct-acting antiviral agents to treat chronic hepatitis C virus (HCV) infection, much needed clinically, has focused largely on inhibitors of two viral enzymes, the protease NS3 and NS5B, an RNA-dependent RNA polymerase essential for HCV replication. BMS-790052, identified using chemical genetics as a powerful specific HCV inhibitor, is a small-molecule inhibitor of a third viral molecule that has no known enzyme activity, the non-structural protein 5A (NS5A). A research team from Bristol-Myers Squibb this week reports on the discovery and virological profile of BMS-790052 and discloses clinical trial observations with this compound in normal healthy volunteers and HCV-infected subjects. These results establish proof-of-concept for HCV NS5A inhibition as a clinically relevant mechanism. In vitro data point to synergistic interactions with known HCV inhibitors, suggesting that cocktails of antiviral agents may be a viable therapeutic approach. Supplementary information The online version of this article (doi:10.1038/nature08960) contains supplementary material, which is available to authorized users.
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            All-Oral 12-Week Treatment With Daclatasvir Plus Sofosbuvir in Patients With Hepatitis C Virus Genotype 3 Infection: ALLY-3 Phase III Study

            Treatment options for patients with hepatitis C virus (HCV) genotype 3 infection are limited, with the currently approved all-oral regimens requiring 24-week treatment and the addition of ribavirin (RBV). This phase III study (ALLY-3; http://ClinicalTrials.gov: NCT02032901) evaluated the 12-week regimen of daclatasvir (DCV; pangenotypic nonstructural protein [NS]5A inhibitor) plus sofosbuvir (SOF; pangenotypic NS5B inhibitor) in patients infected with genotype 3. Patients were either treatment naïve (n = 101) or treatment experienced (n = 51) and received DCV 60 mg plus SOF 400 mg once-daily for 12 weeks. Coprimary endpoints were the proportions of treatment-naïve and treatment-experienced patients achieving a sustained virological response (SVR) at post-treatment week 12 (SVR12). SVR12 rates were 90% (91 of 101) and 86% (44 of 51) in treatment-naïve and treatment-experienced patients, respectively; no virological breakthrough was observed, and ≥99% of patients had a virological response (VR) at the end of treatment. SVR12 rates were higher in patients without cirrhosis (96%; 105 of 109) than in those with cirrhosis (63%; 20 of 32). Five of seven patients who previously failed treatment with an SOF-containing regimen and 2 of 2 who previously failed treatment with an alisporivir-containing regimen achieved SVR12. Baseline characteristics, including gender, age, HCV-RNA levels, and interleukin-28B genotype, did not impact virological outcome. DCV plus SOF was well tolerated; there were no adverse events (AEs) leading to discontinuation and only 1 serious AE on-treatment, which was unrelated to study medications. The few treatment-emergent grade 3/4 laboratory abnormalities that were observed were transient. Conclusion: A 12-week regimen of DCV plus SOF achieved SVR12 in 96% of patients with genotype 3 infection without cirrhosis and was well tolerated. Additional evaluation to optimize efficacy in genotype 3–infected patients with cirrhosis is underway. (Hepatology 2015;61:1127–1135)
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              Discovery of a β-d-2'-deoxy-2'-α-fluoro-2'-β-C-methyluridine nucleotide prodrug (PSI-7977) for the treatment of hepatitis C virus.

              Hepatitis C virus (HCV) is a global health problem requiring novel approaches for effective treatment of this disease. The HCV NS5B polymerase has been demonstrated to be a viable target for the development of HCV therapies. β-d-2'-Deoxy-2'-α-fluoro-2'-β-C-methyl nucleosides are selective inhibitors of the HCV NS5B polymerase and have demonstrated potent activity in the clinic. Phosphoramidate prodrugs of the 5'-phosphate derivative of the β-d-2'-deoxy-2'-α-fluoro-2'-β-C-methyluridine nucleoside were prepared and showed significant potency in the HCV subgenomic replicon assay (<1 μM) and produced high levels of triphosphate 6 in primary hepatocytes and in the livers of rats, dogs, and monkeys when administered in vivo. The single diastereomer 51 of diastereomeric mixture 14 was crystallized, and an X-ray structure was determined establishing the phosphoramidate stereochemistry as Sp, thus correlating for the first time the stereochemistry of a phosphoramidate prodrug with biological activity. 51 (PSI-7977) was selected as a clinical development candidate.
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                Author and article information

                Contributors
                christophe.hezode@aphp.fr
                Journal
                Liver Int
                Liver Int
                10.1111/(ISSN)1478-3231
                LIV
                Liver International
                John Wiley and Sons Inc. (Hoboken )
                1478-3223
                1478-3231
                08 March 2017
                September 2017
                : 37
                : 9 ( doiID: 10.1111/liv.2017.37.issue-9 )
                : 1314-1324
                Affiliations
                [ 1 ] Service d'Hépatologie CHU Henri‐Mondor AP‐HP Université Paris‐Est INSERM U955 Créteil France
                [ 2 ] Service d'Hépato‐Gastroentérologie et de Transplantation Hépatique Hôpital Pitié‐Salpêtrière Paris France
                [ 3 ] Centre d'Investigation de la Fibrose Hépatique Hôpital Haut‐Lévêque CHU de Bordeaux Pessac France
                [ 4 ] Hôpital de la Croix‐Rousse Hospices Civils de Lyon Lyon France
                [ 5 ] Service d'Hépatologie et de Soins Intensifs Digestifs CHRU Jean Minjoz Besançon Cedex France
                [ 6 ] AP‐HP Hôpital Beaujon Service d'Hépatologie Clichy France
                [ 7 ] Hépato‐Gastroentérologie CHU de Montpellier Hôpital Saint‐Eloi Montpellier France
                [ 8 ] Service d'Hépato‐Gastroentérologie CHU Timone Marseille Aix Marseille Université Marseille France
                [ 9 ] Service d'Hépato‐Gastroentérologie et d'Assistance Nutritive Laboratoire Inflammation Tissus Epithéliaux et Cytokines EA 4331 CHU Poitiers Poitiers Cedex France
                [ 10 ] Hepatology Unit Hôpital Cochin AP‐HP Université Paris‐René Descartes INSERM U‐181 and USM20 Pasteur Institute U1223 Paris France
                [ 11 ] CHU Trousseau Tours France
                [ 12 ] CHU de Grenoble Clinique Universitaire d'Hépato‐Gastroentérologie Grenoble France
                [ 13 ] Hôpital Saint‐Joseph Marseille France
                [ 14 ] Service d'Hépato‐Gastroentérologie CHU Angers Angers France
                [ 15 ] Service des Maladies du Foie CHU Rennes Rennes France
                [ 16 ] Centre Hospitalier Intercommunal Créteil France
                [ 17 ] Service d'Hépato‐Gastroentérologie CHU Amiens Nord Amiens France
                [ 18 ] Bristol‐Myers Squibb R&D Rueil‐Malmaison Paris France
                [ 19 ] Bristol‐Myers Squibb R&D Princeton NJ USA
                [ 20 ] INSERM U954 CHU de Nancy and Université de Lorraine Vandoeuvre‐lès‐Nancy France
                Author notes
                [*] [* ] Correspondence

                Christophe Hézode, Service d'Hépatologie, CHU Henri‐Mondor, Créteil, France.

                Email: christophe.hezode@ 123456aphp.fr

                Author information
                http://orcid.org/0000-0002-6762-8033
                Article
                LIV13383
                10.1111/liv.13383
                5600115
                28177199
                8c590f7a-848d-4f22-b05c-a5192cff2225
                © 2017 The Authors Liver International Published by John Wiley & Sons Ltd

                This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

                History
                : 13 September 2016
                : 31 January 2017
                Page count
                Figures: 2, Tables: 4, Pages: 11, Words: 7821
                Funding
                Funded by: Bristol‐Myers Squibb
                Categories
                Viral Hepatitis
                Viral Hepatitis
                Custom metadata
                2.0
                liv13383
                September 2017
                Converter:WILEY_ML3GV2_TO_NLMPMC version:5.1.9 mode:remove_FC converted:15.09.2017

                Gastroenterology & Hepatology
                compassionate use,daclatasvir,genotype 3,hepatitis c,real‐world data,sofosbuvir

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