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Real-world effectiveness and safety of paritaprevir/ritonavir, ombitasvir, and dasabuvir with or without ribavirin for patients with chronic hepatitis C virus genotype 1b infection in Taiwan

Chen-Hua Liu, Chun-Jen Liu, Tung-Hung Su, Hung-Chih Yang, Chun-Ming Hong, Tai-Chung Tseng, Pei-Jer Chen, Ding-Shinn Chen, Jia-Horng Kao
Journal of Gastroenterology and Hepatology 2018, 33 (3): 710-717

BACKGROUND AND AIM: The real-world effectiveness and safety of paritaprevir/ritonavir, ombitasvir, and dasabuvir (PrOD) remain limited for East Asian hepatitis C virus genotype 1b (HCV-1b) patients. The study aimed to evaluate the antiviral responses of PrOD-based regimens for HCV-1b patients in Taiwan.

METHODS: The study performed a retrospective analysis of 103 HCV-1b patients receiving PrOD with or without ribavirin (RBV) for 12 weeks. Data were analyzed to assess the on-treatment and off-therapy HCV viral load and on-treatment adverse events. The pre-specified characteristics related to sustained virologic response 12 weeks off therapy (SVR12 ) were compared.

RESULTS: At treatment week 4, 100 of 102 patients (98.0%) had serum HCV RNA level < 25 IU/mL. The SVR12 was achieved in 101 of 103 patients (98.1%, [95% confidence interval: 93.2-99.5%]). All except one (99.0%) patients tolerated treatment well without treatment interruption. One cirrhotic patient discontinued treatment at week 1 due to hepatic decompensation. Twenty-four patients (23.3%) had ≥ grade 2 elevation in total bilirubin levels, and 21 of them (87.5%) had indirect type hyperbilirubinemia. The stratified SVR12 rates were comparable in terms of sex, age, body mass index, prior treatment experience, hepatitis B virus surface antigen status, RBV usage, baseline and week 2 viral load, renal function, and hepatic fibrosis stage.

CONCLUSIONS: Paritaprevir/ritonavir, ombitasvir, and dasabuvir with or without RBV are efficacious and generally well tolerated for treatment of HCV-1b patients in Taiwan.


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