Efficacy of a 12-Week Simeprevir Plus Peginterferon/Ribavirin (PR) Regimen in Treatment-Naïve Patients with Hepatitis C Virus (HCV) Genotype 4 (GT4) Infection and Mild-To-Moderate Fibrosis Displaying Early On-Treatment Virologic Response
- PMID: 28056030
- PMCID: PMC5215882
- DOI: 10.1371/journal.pone.0168713
Efficacy of a 12-Week Simeprevir Plus Peginterferon/Ribavirin (PR) Regimen in Treatment-Naïve Patients with Hepatitis C Virus (HCV) Genotype 4 (GT4) Infection and Mild-To-Moderate Fibrosis Displaying Early On-Treatment Virologic Response
Abstract
Background: HCV GT4 accounts for up to 20% of HCV infections worldwide. Simeprevir, given for 12 weeks as part of a 24- or 48-week combination regimen with PR is approved for the treatment of chronic HCV GT4 infection. Primary study objectives were assessment of efficacy and safety of simeprevir plus PR in treatment-naïve patients with HCV GT4 treated for 12 weeks. Primary efficacy outcome was sustained virologic response 12 weeks post-treatment (SVR12). Additional objectives included investigation of potential associations of rapid virologic response and baseline factors with SVR12.
Methods: This multicentre, open-label, single-arm study (NCT01846832) evaluated efficacy and safety of simeprevir plus PR in 67 patients with HCV GT4 infection. Patients were treatment-naïve, aged 18-70 years with METAVIR F0-F2 fibrosis. Patients with early virologic response (HCV RNA <25 IU/mL [detectable/undetectable in IL28B CC patients or undetectable in IL28B CT/TT patients] at Week 2 and undetectable at Weeks 4 and 8) were eligible to stop all treatment at the end of Week 12, otherwise PR therapy was continued to Week 24.
Results: Of 67 patients treated, 34 (51%) qualified for 12-week treatment including all but one patient with IL28B CC genotype (14/15). All patients in the 12-week group had undetectable HCV RNA at end of treatment, and 97% (33/34) achieved SVR12. No new safety signals with simeprevir plus PR were identified. The proportion of patients experiencing Grade 3-4 adverse events was lower in the 12-week group than in the 24-week group.
Conclusions: Our findings on simeprevir plus PR therapy shortened to 12 weeks in patients with HCV GT4 infection with favourable baseline characteristics and displaying early on-treatment virologic response are encouraging. No new safety signals were associated with simeprevir plus PR in this study.
Trial registration: NCT01846832.
Conflict of interest statement
Competing Interests: I have read the journal's policy and the authors of this manuscript have the following competing interests: T. Asselah has served as a consultant/speaker for AbbVie, Achillion, Boehringer-Ingelheim, BMS, Gilead, Janssen, Merck, and Roche. C. Moreno has been a paid speaker or adviser for AbbVie, Bristol-Myers Squibb, Gilead, Janssen Pharmaceuticals and Promethera. He has received research grants from Abbvie, Astellas, Gilead Sciences, Janssen Pharmaceuticals, Novartis and Roche. C. Sarrazin has been a paid speaker or adviser for AbbVie, Bristol-Myers Squibb, Gilead Sciences, Janssen Pharmaceuticals, Merck Sharpe & Dohme, and Qiagen. He has received research grants from Abbott, Gilead Sciences, Janssen Pharmaceuticals, Roche, Qiagen. M Gschwantler has been a paid speaker or adviser for AbbVie, Bristol-Myers Squibb, Gilead Sciences, GSK, Janssen Pharmaceuticals, Merck Sharpe & Dohme and Roche. GR Foster has been a paid speaker or adviser for Abbvie, Bristol-Myers Squibb, Gilead Sciences, GSK, Janssen Pharmaceuticals, Merck Sharpe & Dohme and Roche. He has received research grants from Gilead Sciences and Springbank. A Craxí has no conflicts of interest. P Buggisch has been a paid speaker or adviser for AbbVie, Bristol-Myers Squibb, Gilead Sciences, Janssen Pharmaceuticals, Merck Sharpe and Dohme and Roche. M Buti has been a paid speaker or adviser for AbbVie, Boehringer Ingelheim, Bristol-Myers Squibb, Gilead Sciences, Janssen, Merck Sharp & Dohme, and Novartis. She has been a lecturer for Bristol-Myers Squibb, Gilead Sciences, Janssen, Merck Sharp & Dohme, and Novartis. She has been a clinical investigator for Boehringer Ingelheim, Bristol-Myers Squibb, Gilead Sciences, Janssen, Merck Sharp & Dohme, Novartis, and Roche. F Sanai has served as a consultant/speaker for AbbVie, Bristol-Myers Squibb, Gilead Sciences, Janssen Pharmaceuticals, Merck and Roche, and has received research grants from Bristol-Myers Squibb and Roche. C Bicer, O Lenz, G van Dooren, C Nalpas, I Lonjon-Domanec, M Schlag are employees of Janssen Pharmaceuticals and may be Johnson & Johnson stockholders. This does not alter our adherence to PLoS ONE policies on sharing data and materials.
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