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Despite the high effectiveness of direct-acting antivirals for the treatment of hepatitis C, a small proportion of patients do not respond to approved regimens. The combination regimen of SOF/VEL/VOX was recently approved for patients with failure to prior NS5A-based treatment. In this German real-world cohort including patients with cirrhosis (27.3 %) and previous decompensation events, 12 weeks of SOF/VEL/VOX resulted in high virologic response rates irrespective of disease severity and prior DAA regimen. Adverse events were mostly mild or moderate and comparable to those seen in the approval studies., Competing Interests: Johannes Vermehren: sponsored lectures (national oriInternational): AbbVie, Gilead, Intercept, Merck. Markus Cornberg: sponsored lectures (national or international): AbbVie, Gilead, Merck/MSD, Siemens Healthcare, Falk Foundation e. V.; other: advisory committee or review panel: Merck/MSD, AbbVie, Spring. Albrecht Stoehr: grants: Abbvie, Bristol-Myers-Squibb, Gilead, Janssen, MSD, ViiV; sponsored lectures (national or international): AbbVie, Bristol-Myers-Squibb, Gilead, Janssen, MSD, ViiV; other: advisory boards: AbbVie, Bristol-Myers-Squibb, Gilead, Janssen, MSD, ViiV. Hartwig Klinker: grants: Abbvie, BMS, Gilead, Janssen, MSD; sponsored lectures (national or international): AbbVie, BMS, Gilead, Janssen, MSD; other: advisory boards: AbbVie, BMS, Gilead, Hexal, Janssen, MSD. Karl-Georg Simon: sponsored lectures (national or international): AbbVie, FALK, Gilead, MSD; other: advisory committee or review panel: AbbVie, MSD. Gerlinde Teuber: sponsored lectures (national or international): AbbVie, Gilead Sciences, Intercept, MSD; other: advisory committee or review panel: AbbVie, Gilead. Katja Deterding: sponsored lectures (national or international): AbbVie, Gilead, Merck/MSD; other: advisory committee: Gilead, AbbVie. Julian Schulze zur Wiesch: sponsored lectures: Gilead, MSD, AbbVie. Maria-Christina Jung: nothing to disclose. Yvonne Serfert: nothing to disclose. Michael P. Manns: grants: AbbVie, BMS, Janssen, Gilead, Merck (MSD); sponsored lectures (national or international): AbbVie, BMS, Janssen, Gilead, Merck (MSD); consultant: AbbVie, BMS, Janssen, Gilead, Merck (MSD). Stefan Zeuzem: consultancies and lecture honoria: AbbVie, Gilead, Intercept, Janssen, Merck/MSD. Heiner Wedemeyer: reports personal fees from Transgene, MSD, Roche, Gilead, Abbott, BMS, Falk, AbbVie, Novartis, GSK, Roche Diagnostics, Eiger, ITF, and MyrGmbH; grants/research support from MSD, Novartis, Gilead, Roche, Abbott, and Roche Diagnostics. Christoph Sarrazin: grants: Abbott, Gilead, Janssen, Qiagen, Roche, Siemens; sponsored lectures (national or international): Abbott, AbbVie, Achillion, BMS, Gilead, Janssen, Merck/MSD, Qiagen, Roche, Siemens; other: advisory boards: Abbott, AbbVie, BMS, Gilead, Janssen, Merck/MSD, Roche., (© Georg Thieme Verlag KG Stuttgart · New York.)

Background: Twelve weeks of the pangenotypic direct-acting antiviral (DAA) combination sofosbuvir/velpatasvir (SOF/VEL) was highly efficient in patients with hepatitis C virus (HCV) genotype 3 (GT3) infection in the ASTRAL-3 approval study. However, presence of resistance-associated substitutions (RASs) in the HCV nonstructural protein 5A (NS5A) was associated with lower treatment response., Aim: To assess the efficacy and safety of SOF/VEL ± ribavirin (RBV) and the impact of NS5A RASs and RBV use on treatment outcome in HCV GT3 infection in a real-world setting., Methods: In this multicentre cohort study, GT3 patients from ten treatment centres across Germany were included. Sustained virological response was assessed 12 weeks after end-of-treatment (SVR12) in modified intention-to-treat (mITT) and per-protocol analysis (PP). NS5A RASs were tested by population-based sequencing., Results: A total of 293 GT3 patients were included. The median age was 48 years, 70% were male, 25.3% were cirrhotic, 9.2% were HCV/HIV co-infected and 21.8% were treatment-experienced, including 4.1% with DAA experience. Baseline NS5A RASs (Y93H, A30K, L31M) were detected in 11.2%. RBV was added in 5% of noncirrhotic and 58.9% of cirrhotic patients, respectively. SVR12 rates for SOF/VEL±RBV were 95.9% (mITT) and 99.5% (PP), respectively. Only 1 virological relapse occurred in a cirrhotic patient previously treated with SOF/RBV. No treatment-related major adverse events occurred., Conclusion: Twelve weeks of SOL/VEL±RBV was safe and highly efficient in HCV GT3 across a diverse patient population. Baseline NS5A RASs were rarely observed and presence did not seem to impact SVR, regardless of the use of RBV., (© 2018 John Wiley & Sons Ltd.)

Background & Aims: Ledipasvir/sofosbuvir (LDV/SOF) for 8 to 24 weeks is approved for the treatment of chronic hepatitis C virus infection (HCV). In the ION-3 study, 8 weeks of LDV/SOF was non-inferior to 12 weeks in previously untreated genotype 1 (GT1) patients without cirrhosis. According to the Summary of Product Characteristics (SmPC), 8-week treatment may be considered in naïve non-cirrhotic GT1-patients. However, there are only limited data on the effectiveness of an 8-week regimen of LDV/SOF under real-world conditions. The aim of the present study was to characterise patients receiving 8 weeks of LDV/SOF compared to those receiving 12 weeks of LDV/SOF, and to describe therapeutic outcomes in routine clinical practice., Methods: The German Hepatitis C-Registry is a large national real-world cohort that analyses effectiveness and safety of antiviral therapies in chronic HCV. This data set is based on 2,404 patients. Treatment with SOF/LDV (without RBV) for 8 or 12 weeks was initiated on or before September 30, 2015., Results: Overall, 84.6% (2,034/2,404) of the safety population (intention-to-treat-1 [ITT1]) and 98.2% (2,029/2,066) of the per protocol (PP) population achieved sustained virological response at week 12 (SVR12). In the 8-week group, 85.1% (824/968) of ITT1 and 98.3% (821/835) of PP patients achieved SVR12, while in the 12-week group, 85.5% (1,210/1,415) of ITT1, and 98.1% (1,208/1,231) of PP patients achieved SVR12. When treated according to the SmPC, 98.7% (739/749) of the patients achieved SVR12 (PP). Relapse was observed in 9.5% (2/21) of cirrhotic patients treated for 8 weeks (PP)., Conclusions: Under real-world conditions a high proportion of eligible patients receiving 8-week LDV/SOF treatment achieved SVR12. Relapse occurred more frequently in patients who did not meet the selection criteria according to the SmPC., Lay Summary: In a large real-world cohort of patients mainly treated by physicians in private practice in Germany, shorter HCV treatment (8-week) resulted in equivalent cure rates to 12-week treatment in genotype 1 HCV-infected patients. Thus, shorter treatment can be recommended in these patients which would substantially reduce costs of therapy. Clinical Trial number: DRKS00009717 (German Clinical Trials Register, DRKS)., (Copyright © 2017 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.)

There are limited data regarding the real world effectiveness of direct acting antivirals (DAA) for the therapy of chronic genotype 3 hepatitis C virus (HCV) infection. All HCV genotype 3 infected patients from the German hepatitis C cohort (GECCO), which is a prospective database of nine German hepatitis C treatment centers, were included in the study. Three hundred forty-two chronically infected HCV genotype 3 patients were analyzed (253 males [74.0%], mean age 47.3 years, 127 cirrhotic patients [37.1%] mostly with Child A cirrhosis, 113 treatment experienced patients [37.1%], 38 HCV/HIV co-infected patients [11.1%]). SVR12 rates in the "intention-to-treat" analysis were as follows: sofosbuvir/ribavirin 69.4% (75/108), sofosbuvir/peginterferon/ribavirin 80.6% (58/72), sofosbuvir/daclatasvir ± ribavirin for 12 weeks 88.3% (53/63), sofosbuvir/daclatasvir ± ribavirin for 24 weeks 79.3% (23/29), sofosbuvir/ledipasvir ± ribavirin for 12 weeks 71.4% (10/14), and sofosbuvir/ledipasvir ± ribavirin for 24 weeks 86.7% (26/30). Forty patients were lost to follow-up, 23 patients had a relapse, 4 patients stopped treatment prematurely and 1 patient died. Female sex (P = 0.038) and treatment with two different DAAs (P = 0.05) were predictors for SVR12 in the multivariate analysis. In conclusion, sofosbuvir/daclatasvir ± ribavirin for 12 weeks and sofosbuvir/ledipasvir ± ribavirin for 24 weeks are effective for the treatment of HCV genotype 3 infected patients including cirrhotic, treatment-experienced or HIV/HCV co-infected patients., (© 2017 Wiley Periodicals, Inc.)

Background: Shortening the duration of treatment with HCV direct-acting antivirals (DAAs) leads to substantial cost reductions. According to the label, sofosbuvir and ledipasvir can be prescribed for 8 weeks (SL8) in noncirrhotic women or men with HCV genotype 1 and low viral loads. However, real-world data about the efficacy and safety of SL8 are largely missing., Methods: Interim results from an ongoing prospective, multicenter cohort of 9 treatment centers in Germany (GECCO). All patients started on treatment with HCV DAAs since January 2014 were included. This report describes safety and efficacy outcomes in 210 patients with HCV monoinfection and 35 with human immunodeficiency virus (HIV)-HCV coinfection given SL8 in a real-world setting., Results: Of 1353 patients included into the GECCO cohort until December 2015, a total of 1287 had complete data sets for this analysis; 337 (26.2%) fulfilled the criteria for SL8 according to the package insert, but only 193 (57.2%) were eventually treated for 8 weeks. Another 52 patients did not fulfill the criteria but were treated for 8 weeks. SL8 was generally well tolerated. The overall sustained virologic response rate 12 weeks after the end of treatment was 93.5% (186 of 199). The on-treatment response rate was 99.4% (159 of 160) in HCV-monoinfected and 96.4% (27 of 28) in HIV-HCV-coinfected patients. Ten patients were lost to follow-up., Conclusions: SL8 seems highly effective and safe in well-selected HCV-monoinfected and HIV-HCV-coinfected patients in a real-world setting., (© The Author 2016. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail journals.permissions@oup.com.)