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Outcomes for Cirrhotic Patients with Hepatitis C Virus 1b Treated with Asunaprevir and Daclatasvir Combination
Akihiro Tamori1, Hoang Hai1, Sawako Uchida-Kobayashi1
1Osaka City University Graduate School of Medicine, Osaka, Japan Department of Hepatology.
Insights
Asunaprevir and daclatasvir combination therapy effectively treats Hepatitis C Virus (HCV) genotype 1b, achieving high sustained viral response (SVR) in cirrhotic patients. Careful management is needed due to increased adverse events and hepatocellular carcinoma (HCC) risk in this group.
Area of Science:
- Hepatology
- Virology
- Pharmacology
Background:
- Real-world efficacy and safety of asunaprevir + daclatasvir for Hepatitis C Virus (HCV) in compensated cirrhotic patients remain under-evaluated.
- Previous studies focused on outcomes in patients achieving sustained viral response (SVR).
Purpose of the Study:
- To assess the real-world efficacy and safety of asunaprevir + daclatasvir combination therapy in HCV genotype 1b patients with and without cirrhosis.
- To evaluate liver function improvement and hepatocellular carcinoma (HCC) development post-treatment.
Main Methods:
- 145 treatment-naive HCV genotype 1b patients (49 cirrhotic, 96 non-cirrhotic) without RASs at L31/Y93 were enrolled.
- Patients received 24 weeks of asunaprevir (100 mg BID) + daclatasvir (60 mg QD).
- Primary endpoint: SVR 24 weeks post-treatment. Secondary endpoints: liver function, HCC development/recurrence for 1 year.
Main Results:
- SVR24 rates were high and similar in both groups (96% cirrhotic vs. 96% non-cirrhotic).
- Grade III/IV adverse events were more frequent in cirrhotic patients (20.4% vs. 10.4%).
- Cirrhotic patients with SVR showed improved liver function but higher rates of HCC recurrence (43%) and development (7.4%) compared to non-cirrhotics.
Conclusions:
- RAS-oriented asunaprevir/daclatasvir therapy demonstrates potent anti-HCV activity in genotype 1b patients.
- Cirrhotic patients require careful monitoring due to increased risks of adverse events and HCC post-treatment.
Background:
The efficacy and safety of asunaprevir + daclatasvir combination therapy for treatment of hepatitis C virus (HCV) in compensated cirrhotic patients was not fully evaluated in real-world. Outcomes were assessed in cirrhotic patients with sustained viral response (SVR).
Material And Methods:
A total of 145 patients without resistance-associated substitutions (RASs) at L31 and Y93 in the nonstructural protein 5A of HCV genotype 1b, consisting of 49 hepatic cirrhotic and 96 non-cirrhotic patients, were enrolled to the therapy. The patients were treated with 100 mg asunaprevir twice daily plus 60 mg daclatasvir once daily for 24 weeks. The primary endpoint was SVR 24 weeks after completing treatment. In addition, we evaluated the improvement of liver function and development of HCC for 1 year from the end of treatment (EOT).
Results:
The SVR24 rate was 96% (47/49) in the cirrhotic group and 96% (91/95) in the non-cirrhotic group (p = 0.69). During treatment, grade III/IV adverse events occurred more frequently in cirrhotic patients (10/49; 20.4%) than in non-cirrhotic patients (10/96; 10.4%) (p = 0.099). After EOT, alanine aminotransferase and AFP levels were significantly decreased in cirrhotic patients with SVR. In addition, serum levels of albumin and platelet counts were significantly increased. On the other hand, the rates of HCC recurrence (43%) and development (7.4%) were higher in cirrhotic patients than in the non-cirrhotic patients (12.5% and 1.1%, respectively).
Conclusion:
RAS-oriented asunaprevir/daclatasvir therapy has a strong anti-HCV effect in patients with HCV genotype 1b. However, careful management is necessary in patients with cirrhosis.
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