Generic sofosbuvir-based interferon-free direct acting antiviral agents for patients with chronic hepatitis C virus infection: a real-world multicenter observational study

Liu, C-Hua.; Huang, Y-Jie.; Yang, S-Sing.; Chang, C-Hsin.; Yang, S-Shun.; Sun, H-Yun.; Liu, C-Jen.; Liu, W-Chun.; Su, T-Hung.; Yang, H-Chih.; Hong, C-Ming.; Tseng, T-Chung.; Chen, P-Jer.; Chen, D-Shinn.; Hung, C-Ching.; Kao, J-Horng.

Scientific Reports 8(1): 13699

2018


ISSN/ISBN: 2045-2322
PMID: 30209349
DOI: 10.1038/s41598-018-32060-7
Accession: 071821833

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Abstract
Real-world data regarding the effectiveness and safety of generic sofosbuvir (SOF)-based interferon-free direct acting antiviral agents (DAAs) for patients with chronic hepatitis C virus (HCV) infection remain limited. A total of 517 chronic HCV-infected patients receiving 12 or 24 weeks of SOF-based therapies were retrospectively enrolled in 4 academic centers in Taiwan. The rate of sustained virologic response at week 12 off-therapy (SVR12) and that of treatment completion were assessed. The baseline characteristics and on-treatment HCV viral kinetics to predict SVR12 were analyzed. By evaluable population (EP) analysis, the SVR12 rate was 95.4% (95% confidence interval [CI]: 93.2-96.9%). The SVR12 was achieved in 29 of 34 patients (85.3%, 95% CI: 69.6-93.6%), 130 of 139 patients (93.5%, 95% CI: 88.2-96.6%), 119 of 124 patients (96.0%, 95% CI: 90.9-98.3%) and 215 of 220 patients (97.7%, 95% CI: 94.8-99.0%) who received SOF in combination with ribavirin (RBV), ledipasvir (LDV), daclatasvir (DCV) and velpatasvir (VEL), respectively. Of 517 patients, 514 (99.4%) completed the scheduled treatment. All 15 patients with true virologic failures were relapsers. Two decompensated cirrhotic patients had on-treatment deaths which were not related to DAAs. All 7 patients who were lost to follow-up had undetectable HCV RNA level at the last visit. The SVR12 rates were comparable in terms of baseline patient characteristics and viral decline at week 4 of treatment. In conclusion, generic SOF-based regimens are well tolerated and provide high SVR12 rates in patients with chronic HCV infection.