• Emma D Deeks.
• Springer, Private Bag 65901, Mairangi Bay 0754, Auckland, New Zealand, demail@springer.com.
• Drugs. 2015 Jun 1; 75 (9): 1027-38.

AbstractA fixed-dose tablet comprising ombitasvir (an NS5A replication complex inhibitor), paritaprevir (an NS3/4A protease inhibitor) and ritonavir (a cytochrome P450 inhibitor) taken in combination with dasabuvir (an NS5B polymerase inhibitor) is indicated for the treatment of chronic hepatitis C virus (HCV) genotype 1 infection in several countries, including the USA (copackaged as Viekira Pak(™)) and those of the EU (Viekirax(®) and Exviera(®)). In phase II and III trials, this interferon-free regimen, taken ± ribavirin, provided high rates of sustained virological response 12 weeks post-treatment in adults with chronic HCV genotype 1a or 1b infection, including those with compensated cirrhosis, liver transplants or HIV-1 co-infection. The regimen was generally well tolerated, with nausea, insomnia, asthenia, pruritus, other skin reactions and fatigue being among the most common tolerability issues. Thus, ombitasvir/paritaprevir/ritonavir plus dasabuvir is an effective interferon-free, direct-acting antiviral regimen for use ± ribavirin in a broad range of adults chronically infected with HCV genotype 1.

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