Coblopasvir and sofosbuvir for treatment of chronic hepatitis C virus infection in China: A single‐arm, open‐label, phase 3 trial
Yanhang Gao, Fei Kong, Guangming Li, Cheng Li, Sujun Zheng, Jian-Mei Lin, Xiaofeng Wen, Jinghua Hu, Xiaozhong Wang, Xiaofeng Wu, Huichun Xing, Jidong Jia, Zhansheng Jia, Yujuan Guan, Chenghao Li, Guicheng Wu, Zhiliang Gao, Zhuangbo Mou, Qin Ning, Qing Mao, Yongfeng Yang, Jing Ning, Li Li, Hai‐Feng Pan, Desheng Zhou, Yanhua Ding, Hong Qin, Junqi Niu
Abstract
BACKGROUND & AIM: An affordable, pangenotypic regimen remains as an unmet medical need for chronic hepatitis C patients in China. This single-arm, open-label, multicenter, phase 3 trial evaluated the efficacy and safety of coblopasvir, a pangenotypic non-structural protein 5A (NS5A) inhibitor, combined with sofosbuvir for treating Chinese patients with chronic hepatitis C virus (HCV) infection. METHODS: Treatment-naïve and interferon-experienced adult patients, including those with advanced fibrosis (F3) or compensated cirrhosis (F4), were treated with a universal, combinational regimen of coblopasvir 60 mg and sofosbuvir 400 mg, once daily, for 12 weeks. The primary efficacy endpoint was sustained virological response at post-treatment week 12 (SVR12). RESULTS: Overall, 371 patients (men, 51%; age, 47 ± 11 years; genotype 1a < 1%, 1b 48%, 2a 26%, 3a 6%, 3b 7% and 6 12%) were enrolled from 19 sites. Fifty-one patients (14%) had F3, 39 patients (11%) had F4 and 39 patients (11%) were interferon experienced. The overall SVR12 was 97% (95% CI, [94%, 98%]) for the full analysis set and was equal to or above 90% for all predefined subsets. Ten patients (3%) experienced virological relapse and two patients did not complete follow-up. No adverse events (AEs) occurred at a frequency ≥5%, and the most often reported AEs (≥1%) were neutropenia and fatigue. The majority of AEs were mild to moderate and transient without specific medical intervention. CONCLUSIONS: The universal, pangenotypic combo of coblopasvir plus sofosbuvir is an efficacious and safe treatment for Chinese patients monoinfected with HCV of genotype 1, 2, 3 and 6, including those with compensated cirrhosis. LAY SUMMARY: The regimen of coblopasvir and sofosbuvir is a safe and effective treatment for Chinese patients with genotype 1, 2, 3 and 6 HCV infection, including those with compensated cirrhosis. Therefore, this regimen would be a novel choice of treatment for this patient population.