HCV Mutation Detail Information

Virus Mutation HCV Mutation M28V


Basic Characteristics of Mutations
Mutation Site M28V
Mutation Site Sentence One patient with suboptimal adherence confirmed by plasma drug monitoring relapsed and developed NS3, NS5A and NS5B resistance-associated substitutions (V36M, M28V and S556G).
Mutation Level Amino acid level
Mutation Type Nonsynonymous substitution
Gene/Protein/Region NS5A
Standardized Encoding Gene NS5A
Genotype/Subtype -
Viral Reference -
Functional Impact and Mechanisms
Disease HCV Infection    
Immune -
Target Gene -
Clinical and Epidemiological Correlations
Clinical Information -
Treatment -
Location France
Literature Information
PMID 32306039
Title Grazoprevir/elbasvir for the immediate treatment of recently acquired HCV genotype 1 or 4 infection in MSM
Author Boyd A,Miailhes P,Chas J,Valantin MA,Yazdanpanah Y,Rosenthal E,Chevaliez S,Piroth L,Rougier H,Peytavin G,Pialoux G,Girard PM,Lacombe K
Journal The Journal of antimicrobial chemotherapy
Journal Info 2020 Jul 1;75(7):1961-1968
Abstract BACKGROUND: In Europe, increases in HCV infection have been observed over the last two decades in MSM, making them a key population for recently acquired HCV. Alternative combinations of direct-acting antiviral agents against early HCV infection need to be assessed. PATIENTS AND METHODS: In this pilot trial, MSM with recently acquired genotype 1 or 4 HCV infection were prospectively included and received 8 weeks of oral grazoprevir 100 mg and elbasvir 50 mg in a fixed-dose combination administered once daily. The primary endpoint was sustained virological response evaluated 12 weeks after the end of treatment (EOT) (SVR12). Secondary endpoints were the virological characterization of failures, the quality of life before, during and after treatment and the rate of reinfection. RESULTS: In a 15 month period, 30 patients were enrolled, all of whom were MSM. Of the 29 patients completing follow-up, 28 (96%, 95% CI = 82%-99%) achieved SVR12. One patient interrupted follow-up (suicide) but had undetectable plasma HCV RNA at EOT. One patient with suboptimal adherence confirmed by plasma drug monitoring relapsed and developed NS3, NS5A and NS5B resistance-associated substitutions (V36M, M28V and S556G). The most common adverse events related to study drug were diarrhoea (n = 4, 13%), insomnia (n = 2, 7%) and fatigue (n = 2, 7%), although no patient discontinued treatment. No HIV RNA breakthrough was reported in the 28 patients with HIV coinfection. At Week 48, reinfection was diagnosed in three patients. CONCLUSIONS: Our data support the use of grazoprevir/elbasvir for immediate treatment against HCV in order to reduce HCV transmission in MSM.
Sequence Data -
Mutation Information
Note
Basic Characteristics of Mutations
  • Mutation Site: The specific location in a gene or protein sequence where a change occurs.
  • Mutation Level: The level at which a mutation occurs, including the nucleotide or amino acid level.
  • Mutation Type: The nature of the mutation, such as missense mutation, nonsense mutation, synonymous mutation, etc.
  • Gene/Protein/Region: Refers to the specific region of the virus where the mutation occurs. Including viral genes, viral proteins, or a specific viral genome region. If the article does not specifically indicate the relationship between the mutation and its correspondence, the main
  • Gene/Protein/Region studied in the article is marked.
  • Genotype/Subtype: Refers to the viral genotype or subtype where the mutation occurs. If the article does not specifically indicate the relationship between the mutation and its correspondence, the main Genotype/Subtype studied in the article is marked.
  • Viral Reference: Refers to the standard virus strain used to compare and analyze viral sequences.
Functional Impact and Mechanisms
  • Disease: An abnormal physiological state with specific symptoms and signs caused by viral infection.
  • Immune: The article focuses on the study of mutations and immune.
  • Target Gene: Host genes that viral mutations may affect.
Clinical and Epidemiological Correlations
  • Clinical Information: The study is a clinical or epidemiological study and provides basic information about the population.
  • Treatment: The study mentioned a certain treatment method, such as drug resistance caused by mutations. If the study does not specifically indicate the relationship between mutations and their correspondence treatment, the main treatment studied in the article is marked.
  • Location: The source of the research data.
Literature Information
  • Sequence Data: The study provides the data accession number.