• Elaine Y Cheng, Sammy Saab, Curtis D Holt, and Ronald W Busuttil.
• a Department of Surgery , University of California Los Angeles , Los Angeles , CA , USA.
• Expert Opin Pharmacother. 2015 Jan 1; 16 (18): 2835-48.

IntroductionThe use of direct-acting antiviral (DAA) agents against chronic hepatitis C virus (HCV) infections can result in the successful treatment of nearly all patients. Effective antiviral treatments can prevent the progression to cirrhosis and hepatocellular malignancy, and decrease liver-related morbidity and mortality.Areas CoveredParitaprevir-ritonavir-ombitasvir and dasabuvir (PrOD), with or without ribavirin, is an all-oral regimen approved for the treatment of HCV genotype 1 infections, including patients with compensated cirrhosis. Phase 2 and 3 clinical trials demonstrated the safety and efficacy of this regimen in HCV genotype 1-infected patients who are treatment-naïve and those who have failed peginterferon/ribavirin therapy. Additional studies evaluated the use of PrOD with or without ribavirin among special populations, including patients co-infected with human immunodeficiency virus-1 and HCV, liver transplant recipients with HCV recurrence, and patients with severe renal impairment. Additionally, the combination of paritaprevir-ritonavir-ombitasvir plus ribavirin is found to be highly efficacious, and is now approved in the US, for the treatment of HCV genotype 4 infections.Expert OpinionThe availability and use of interferon-free DAA combination regimens has resulted in a major paradigm shift in the treatment of HCV. PrOD, with or without ribavirin, is an effective, safe and tolerable treatment option.

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