Experience with direct-acting antivirals in genotype 1-5 infected chronic hepatitis C patients in Turkey.

Background: Hepatitis C virus (HCV) can cause chronic liver disease, hepatic cirrhosis, hepatocellular carcinoma, liver transplantation, and death. Early diagnosis and treatment are thus vital.

Objectives: We aimed to investigate the sustained virological response (SVR) rates in chronic hepatitis C patients infected with different genotypes, receiving different direct-acting antiviral treatments (DAAs).

Design: Retrospective, observational SETTING: Clinic for infectious diseases and clinical microbiology PATIENTS AND METHODS: Patients diagnosed with chronic hepatitis C who applied to our outpatient clinic between January 2016 and November 2022 and were treated with a DAA were included in the study. Treatment responses were evaluated after each patient was treated with either ledipasvir plus sofosbuvir (LDV/SOF), LDV/SOF + ribavirin (RBV), SOF+RBV, ombitasvir/paritaprevir/ritonavir plus dasabuvir (OBV/PTV/r±DSV) ±RBV, or glecaprevir plus pibrentasvir (GLE/PIB).

Main Outcome Measures: Sustained virological response (SVR) rates at 12 weeks (SVR12) post-treatment.

Sample Size: 360 patients.

Results: Of 360 patients who met the inclusion criteria, 218 (60.6%) were male and 142 (39.4%) were female with no statistically significant differences in SVR between sexes (=.252). Nearly all had a SVR (n=353, 98.1%). The median (IQR) age of the patients was 56 (30.3) years. There were 42 (11.7%), 199 (55.3%), 4 (1.1%), 106 (29.4%), 8 (2.2%) and 1 (0.3%) patient with genotypes 1a, 1b, 2, 3, 4 and 5, respectively, and SVR12 did not differ significantly between genotypes (=.066). SVR12 response was higher in 246 (68.3%) non-injecting drug users compared to 114 (31.7%) injecting drug users (=.005). The SVR12 response was achieved in 100% of patients with genotypes 1a, 2, 4, and 5. SVR12 response could not be obtained in 1 of 199 genotype 1b patients and 6 of 106 genotype 3 patients. The common feature of 6 reinfection patients with genotype 3 was that they were using intravenous drugs. These 6 patients were reinfected due to their continued intravenous drug use.

Conclusion: In conclusion, DAAs provide high SVR12 rates in cirrhotic/non-cirrhotic, pegylated interferon-naive/experienced patient groups and in patients infected with all genotypes. DAAs have a high SVR12 rate in patients with chronic hepatitis C.

Limitations: Retrospective, single-center.