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JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

[Efficacy and safety of paritaprevir/ritonavir/ombitasvir combined with dasabuvir in non-cirrhotic Asian adult patients with newly diagnosed and treated chronic HCV genotype 1b infection: a randomized, double-blind, placebo-controlled study - China data]

L Wei, J Cheng, J Luo, Z P Li, J L Duan, J D Hou, M X Jia, Y Zhang, Q Huang, G J Xie, D L Wang, W Yang, C Y Zhao, G Zhao, S M Tang, G Z Lin, J J Gong, Z L Niu, J F Gao, Kopecky-Bromberg Sarah, Fredrick Linda, Mobashery Niloufar, Ye Wang, Jiefei Wang
Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology 2018 May 20, 26 (5): 359-364
29996204
Objective: To evaluate the safety and efficacy of ombitasvir/paritaprevir/ritonavir (OBV/PTV/r) 25/150/100 mg once daily combined with dasabuvir 250mg, twice daily in non-cirrhotic Chinese adult patients with newly diagnosed and treated chronic HCV genotype 1b infection. Methods: A randomized, double-blind, placebo-controlled, multicenter phase 3 clinical trial was conducted in mainland China, Korea, and Taiwan.Safety and efficacy of OBV/PTV/r plus DSV administered for 12 weeks were evaluated in a newly diagnosed and treated (interferon alpha /pegylated interferon alpha) and ribavirin non-cirrhotic adults with chronic HCVgenotype 1b infection. Patients randomly received OBV/PTV/r plus DSV for 12 weeks (Group A), or placebo for 12 weeks (Group B) followed by an open-label phase of OBV/PTV/r plus DSV for 12 weeks. Sustained response (SVR12) rate obtained at 12 weeks and (SVR24) 24 weeks after discontinuation of treatment, and the incidence of adverse events and laboratory abnormalities after double-blind and open-label phase treatment were assessed. Results: A total of 410 cases of Chinese patients were included and randomly assigned to group A and B (with 205 cases in each group) in a 1:1 ratio. The rates of SVR12 and SVR24 were 99% (95% CI : 94.8% - 99.8%) in the newly diagnosed patients in group A (205 patients) and the rates of SVR12 and SVR24 were 100% in treated patients (95% CI : 96.3% - 100%). Different baseline characteristics had no effect on SVR12 and SVR24 rates. Most of the adverse events occurred were mild, asymptomatic, and≥ 3 laboratory abnormalities during treatment were rare, including elevation of alanine aminotransferase (2 cases in double-blind stage A group), aspartate aminotransferase (Double-blind stage A (3 cases) and total bilirubin (1 case in open-label phase B group); however, those mild adverse events could be recovered after drug withdrawal or discontinuation. only1 person discontinued drugs due to adverse events (Group B, open-label phase). Conclusion: The 12 weeks treatment course of OBV/PTV/r combined with DSV produced 99% ~ 100% rates of SVR12 and SVR24 in non-cirrhotic Asian adult patients with newly diagnosed and treated chronic HCV genotype 1b infection, and the tolerance and safety were good.

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