Abstract
Background
The optimal retreatment regimen for patients with hepatitis C virus (HCV) infection who failed interferon-free, direct-acting antiviral (DAA) therapy is undetermined. In this study, we aimed to evaluate the efficacy and safety of 12-week retreatment with ledipasvir (LDV) and sofosbuvir (SOF) with add-on ribavirin (RBV) for patients who previously failed to respond to HCV-NS5A inhibitor, daclatasvir (DCV), and HCV-NS3 inhibitor, asunaprevir (ASV), therapy.
Methods
This multicenter, prospective study enrolled 15 patients with genotype-1 HCV infection who failed DCV/ASV combination therapy. They were retreated with SOF, LDV, and RBV for 12 weeks and underwent physical examinations and blood tests at baseline, during treatment, and after therapy. At baseline and relapse, NS3/NS5A and NS5B resistance-associated variants (RAVs) were evaluated.
Results
Of the 15 enrolled patients, 73.3% (11/15), 86.7% (13/15), and 0% (0/15) had RAVs in NS3 D168A/V/T/E, NS5A L31I/M/F/V plus Y93H, and NS5B S282T, respectively. Overall, 86.7% (13/15) of patients achieved a sustained viral response, and all patients completed therapy. No patients experienced severe adverse events. Two patients who failed to respond to SOF, LDV, and RBV combination therapy were elderly women, had the IL28B non-TT genotype, and NS5A RAVs in L31I/Y93H or NS5A A92 K at baseline.
Conclusions
This study revealed that SOF, LDV, and RBV combination therapy was effective and well-tolerated for patients with genotype-1 HCV infection who failed DCV and ASV combination therapy. Thus, RBV added to DAA therapy for difficult-to-treat patients might improve treatment outcomes.
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Abbreviations
- DAAs:
-
Direct-acting antivirals
- HCV:
-
Hepatitis C virus
- PI:
-
Protease inhibitor
- RAVs:
-
Resistance-associated variants
- SVR:
-
Sustained virological response
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Acknowledgements
This study was supported in part by grants from the Ministry of Education, Culture, Sports, Science and Technology of Japan and the Japan Agency for Medical Research and development. The principal investigators of the NORTE study sites are listed below: Junichi Yoshida (JCHO Sapporo Hokushin Hospital), Akira Fuzinaga, (Abashiri-Kosei General Hospital), Keisuke Shinada (Keiwakai Ebetsu Hospital) Shuichi Muto (National Hospital Organization Hokkaido Medical Center), Takashi Meguro (Hokkaido Gastroenterology Hospital), Munenori Okamoto (Aiiku Hospital), Mineo Kudo (Sapporo Hokuyu Hospital), Nobuaki Akakura (NTT EAST Sapporo Hospital), Minoru Uebayashi (Japanese Red Cross Kitami Hospital), Kanji Katou (Iwamizawa Municipal General Hospital), Yasuyuki Kunieda (Wakkanai City Hospital), Miki Tateyama (Tomakomai Nissho Hospital), Atshuhiko Kawakami (Sapporo Century Hospital), and Izumi Tsunematsu (Touei hospital).
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N. Sakamoto received lecture fees from Bristol Myers Squibb and Pharmaceutical K.K., grants and endowments from MSD K.K. and Chugai Pharmaceutical Co., Ltd., and a research grant from Gilead Sciences, Inc. G. Suda received research grants from Bristol Myers Squibb and MSD K.K. Y. Tanaka received lecture fees from Bristol-Myers Squibb, MSD K.K., Chugai Pharmaceutical Co., Ltd., AbbVie Inc., Janssen Pharmaceutical K.K., Gilead Sciences, and a research grant from Bristol-Myers Squibb, Chugai Pharmaceutical Co., Ltd., and AbbVie Inc. The other authors have nothing to disclose.
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Suda, G., Ogawa, K., Yamamoto, Y. et al. Retreatment with sofosbuvir, ledipasvir, and add-on ribavirin for patients who failed daclatasvir and asunaprevir combination therapy. J Gastroenterol 52, 1122–1129 (2017). https://doi.org/10.1007/s00535-017-1328-z
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DOI: https://doi.org/10.1007/s00535-017-1328-z