High Efficacy of ombitasvir/paritaprevir/ritonavir plus dasabuvir in hepatitis C genotypes 4 and 1-infected patients with severe chronic kidney disease.

Liver Int 2018 08 31;38(8):1395-1401. Epub 2018 Mar 31.

Gastroenterology Unit, Department of Medicine, King Fahad Hospital, Jeddah, Saudi Arabia.

Background & Aims: Limited data have shown high efficacy of co-formulated ombitasvir/paritaprevir/ritonavir (OBV/PTV/r) in the treatment of hepatitis C virus (HCV) genotype (GT)-4, and combined with dasabuvir (DSV) in GT1 patients, with chronic kidney disease (CKD) stages 4-5 (<30 mL/min/1.73 m ). We assessed real-world safety and efficacy of OBV/PTV/r ± DSV in GT1- and 4-infected patients.

Methods: In this observational cohort (n = 67), we enrolled stages 4-5 CKD treatment-naïve or Peginterferon/RBV-experienced GT4-infected patients (n = 32) treated for 12-24 weeks with OBV/PTV/r ± RBV, and plus DSV in GT1 patients (n = 35, including 3 with GT1/4 co-infection). RBV was dosed by physician discretion between 200 mg weekly and 200 mg daily. Primary endpoints were SVR12, calculated on intention-to-treat (ITT) basis, and occurrence of serious adverse events.

Results: The mean age of the cohort was 45.7 ± 12.7 years, 50.7% were females, 20.9% had cirrhosis, 35.8% were treatment-experienced and 97% were on haemodialysis. Three patients (F4) received 24-week treatment, 2 with GT4, and 1 with GT1a; and 19.4% were treated without RBV, including 9 GT1, and 4 GT4. Overall, 65 (97.1%) patients achieved SVR12, including 100% of those with a post-treatment follow-up (modified ITT analysis). Of the two patients without SVR12, one died from sepsis-related complications and the other from a myocardial infarction 2 weeks after completing therapy. Grades 3-4 anaemia occurred in 8.9%.

Conclusion: A 12-week regimen of OBV/PTV/r ± DSV with or without RBV is highly effective with a favourable safety profile amongst GT4 and GT1 patients with CKD stages 4-5. SVR12 rates were high regardless of patient characteristics.

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http://dx.doi.org/10.1111/liv.13674DOI Listing
August 2018

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