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Future of hepatitis C therapy: development of direct-acting antivirals

Dore, Gregory J.a,b; Matthews, Gail V.a,b; Rockstroh, Jürgenc

Current Opinion in HIV and AIDS: November 2011 - Volume 6 - Issue 6 - p 508–513
doi: 10.1097/COH.0b013e32834b87f8
HIV and hepatitis C coinfection: Edited by Jürgen Rockstroh and Gail Matthews

Purpose of review The landscape of hepatitis C virus (HCV) therapy will change considerably over the next decade with the probable licensure of many HCV direct-acting antiviral (DAA) therapy agents. This review will outline the data on the initial two DAA agents licensed (protease inhibitors telaprevir and boceprevir) and cover potential future therapeutic strategies and challenges for DAA-based therapy, including in the context of HIV/HCV coinfection.

Recent findings Phase III trials evaluating the addition of telaprevir or boceprevir to pegylated interferon and ribavirin in both HCV treatment naïve and experienced populations with chronic HCV genotype 1 have demonstrated considerable improvements in sustained virological response, with many patients able to shorten total treatment duration from 48 to 24–36 weeks. Although these initial DAA-based treatment results are encouraging, additional toxicity, problematic dosing schedules, and potential drug–drug interactions pose challenges for clinical management, particularly in HIV/HCV coinfection. Phase II trials with telaprevir and boceprevir in HIV/HCV populations are underway. Subsequent DAA agents appear to have improved tolerability and dosing schedules and open the door for interferon (IFN)-free DAA-based combination therapy.

Summary Development of DAA therapy will lead to a major shift in HCV clinical management, particularly with the potential for IFN-free combination therapy.

aViral Hepatitis Clinical Research Program, The Kirby Institute, The University of New South Wales

bHIV, Immunology, Infectious Diseases Clinical Services Unit, St Vincent's Hospital, Sydney, New South Wales, Australia

cDepartment of Medicine I, University of Bonn, Bonn, Germany

Correspondence to Professor Gregory J. Dore, The Kirby Institute, The University of New South Wales, CFI Building, Corner Boundary and West Streets, Darlinghurst, NSW 2010, Australia Tel: +61 2 9385 0900; fax: +61 2 9385 0920; e-mail:

© 2011 Lippincott Williams & Wilkins, Inc.