Real-world effectiveness of genotype-specific and pangenotypic direct-acting antivirals in HCV-infected patients with renal failure

Aim of the study: The aim is to summarize the effectiveness and safety of genotype-specific and pangenotypic hepatitis C virus (HCV) treatments in patients with renal failure.Material and methods: In the EpiTer-2 database, which includes data from 22 hepatology centers in Poland, 593 patients with HCV infection and kidney failure were identified. According to KDIGO 2022, they fulfilled the criteria of chronic kidney disease. Patients were divided into two groups: treated with genotype-specific regimens (n = 428) and pangenotypic options (n = 165), in relation to the stage of kidney disease determined using the glomerular filtration rate (GFR) (Cockcroft and Gault equation). Two separate groups were created for hemodialyzed patients (n = 134) and patients after kidney transplantation (n = 89).Results: In a total of 593 patients, 78.7% were treatment-naive and 23.9% had liver cirrhosis, in 27.5% of cases decompensated. In both groups, the dominant genotype was GT1b. Among patients treated with genotype -spe-cific regimens, LDV/SOF +/- RBV, OBV/PTV/r + DSV +/- RBV, and GZR/EBR +/- RBV treatments were given to 31.5%, 31.5%, and 34.8% of patients respectively. In pangenotypic regimens, GLE/PIB was chosen in 50.3%. Ninety-six percent and 98.8% of patients in the genotype-specific regimen and 88.5% and 94.8% in the pangenotypic regimen achieved a sustained virologic response at 12 weeks (SVR12) in the intention-to-treat and per protocol population respectively. Liver cirrhosis was identified as a risk factor for virological failure. During the study, 14 patients died, 7 in each of the two groups, none related to the antiviral treatment.Conclusions: Both types of treatment regimens are equally effective and safe in patients with renal failure. The stage of renal failure or transplant does not influence the antiviral response.