6533b839fe1ef96bd12a5a78

RESEARCH PRODUCT

Viral resistance in HCV infection.

Francesca Ceccherini-silbersteinCarlo Federico PernoAntonio CraxìValeria CentoVelia Chiara Di Maio

subject

0301 basic medicineGenotypeTreatment outcomeDrug ResistanceDrug resistanceHepacivirusBiologyViral resistanceAntiviral AgentsVirological response03 medical and health sciences0302 clinical medicinePharmacotherapyDrug TherapyDrug Resistance Multiple ViralVirologyRibavirinmedicineHumansGenetic variabilityViralTreatment FailureChronicAntiviral Agents; Drug Therapy Combination; Genetic Variation; Genotype; Hepacivirus; Hepatitis C Chronic; Humans; Interferons; Ribavirin; Treatment Failure; Drug Resistance Multiple ViralGenetic VariationHepatitis CHepatitis C Chronicmedicine.diseaseSettore MED/07 - Microbiologia e Microbiologia ClinicaHepatitis C030104 developmental biologyHCVImmunologyCombinationHcv treatment030211 gastroenterology & hepatologyDrug Therapy CombinationInterferonsMultiple

description

The introduction of new multi-genotypic direct acting antivirals (DAA) in clinical practice has revolutionized HCV treatment, permitting the achievement of >95% rates of sustained virological response in many patients. However, virological failures can occur particularly if the treatments are sub optimal and/or with too short duration. Failure is often associated with development of resistance. The wide genetic variability in terms of different genotypes and subtypes, together with the natural presence and/or easy development of resistance during treatment, are intrinsic characteristics of HCV that may affect the treatment outcome and the chances of achieving a virological cure. This review explores in detail the aspects of HCV innate and treatment-induced resistance to new interferon-free DAA regimens.

10.1016/j.coviro.2018.10.005https://pubmed.ncbi.nlm.nih.gov/30439589