Virological outcomes and treatment algorithms utilisation in observational study of patients with chronic hepatitis C treated with boceprevir or telaprevir

Aliment Pharmacol Ther. 2015 Apr;41(7):671-85. doi: 10.1111/apt.13095. Epub 2015 Jan 28.


Background: HCV-TARGET is a longitudinal observational study of chronic hepatitis C virus (HCV) patients treated with direct-acting anti-viral agents (DAAs) in a US consortium of 90 academic and community medical centres.

Aim: To assess utilisation of response-guided therapy (RGT) and sustained virological response (SVR) of a large cohort of patients.

Methods: Patients received peginterferon (PEG-IFN), ribavirin and either telaprevir or boceprevir. Demographical, clinical and virological data were collected during treatment and follow-up. RGT and treatment futility stopping rules was assessed at key time points.

Results: Of 2084 patients, 38% had cirrhosis and 56% had received prior treatment for HCV. SVR rates were 31% (95% CI: 24-40) and 50% (95% CI: 44-56) in boceprevir patients with and without cirrhosis, respectively. SVR rates were 46% (95% CI: 42-50) and 60% (95% CI: 57-64) in telaprevir patients with and without cirrhosis, respectively. Early clearance of virus, IL28B genotype, platelet counts and diabetes were identified as predictors of SVR among boceprevir patients, while early clearance of virus, IL28B, cirrhosis, HCV subtype, age, haemoglobin, bilirubin and albumin levels were identified as predictors of SVR for telaprevir patients.

Conclusions: In academic and community centres, triple therapy including boceprevir or telaprevir led to SVR rates somewhat lower than those noted in large phase 3 clinical trials. Response rates were consistently higher among patients without cirrhosis compared to those with cirrhosis regardless of DAA used and prior treatment response. Trial registration NCT01474811.

Publication types

  • Clinical Trial
  • Multicenter Study
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Age Factors
  • Aged
  • Algorithms
  • Antiviral Agents / administration & dosage
  • Antiviral Agents / adverse effects
  • Antiviral Agents / therapeutic use*
  • Biomarkers
  • Comorbidity
  • Drug Therapy, Combination
  • Female
  • Genotype
  • Hepatitis C, Chronic / drug therapy*
  • Humans
  • Interferon alpha-2
  • Interferon-alpha / therapeutic use
  • Liver Cirrhosis / drug therapy
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Oligopeptides / administration & dosage
  • Oligopeptides / adverse effects
  • Oligopeptides / therapeutic use*
  • Polyethylene Glycols / therapeutic use
  • Proline / administration & dosage
  • Proline / adverse effects
  • Proline / analogs & derivatives*
  • Proline / therapeutic use
  • Recombinant Proteins / therapeutic use
  • Ribavirin / therapeutic use
  • Young Adult


  • Antiviral Agents
  • Biomarkers
  • Interferon alpha-2
  • Interferon-alpha
  • Oligopeptides
  • Recombinant Proteins
  • Polyethylene Glycols
  • Ribavirin
  • telaprevir
  • N-(3-amino-1-(cyclobutylmethyl)-2,3-dioxopropyl)-3-(2-((((1,1-dimethylethyl)amino)carbonyl)amino)-3,3-dimethyl-1-oxobutyl)-6,6-dimethyl-3-azabicyclo(3.1.0)hexan-2-carboxamide
  • Proline
  • peginterferon alfa-2b
  • peginterferon alfa-2a

Associated data