A European multicientre study on the comparison of HIV-1 viral loads between VERIS HIV-1 Assay and Roche COBAS® TAQMAN® HIV-1 test, Abbott RealTime HIV-1 Assay, and Siemens VERSANT HIV-1 Assay

J Clin Virol. 2017 Jul;92:75-82. doi: 10.1016/j.jcv.2017.05.003. Epub 2017 May 11.


Background: Viral load monitoring is essential for patients under treatment for HIV. Beckman Coulter has developed the VERIS HIV-1 Assay for use on the novel, automated DxN VERIS Molecular Diagnostics System.¥ OBJECTIVES: Evaluation of the clinical performance of the new quantitative VERIS HIV-1 Assay at multiple EU laboratories.

Study design: Method comparison with the VERIS HIV-1 Assay was performed with 415 specimens at 5 sites tested with COBAS® AmpliPrep/COBAS® TaqMan® HIV-1 Test, v2.0, 169 specimens at 3 sites tested with RealTime HIV-1 Assay, and 202 specimens from 2 sites tested with VERSANT HIV-1 Assay. Patient monitoring sample results from 4 sites were also compared.

Results: Bland-Altman analysis showed the average bias between VERIS HIV-1 Assay and COBAS HIV-1 Test, RealTime HIV-1 Assay, and VERSANT HIV-1 Assay to be 0.28, 0.39, and 0.61 log10 cp/mL, respectively. Bias at low end levels below 1000cp/mL showed predicted bias to be <0.3 log10 cp/mL for VERIS HIV-1 Assay versus COBAS HIV-1 Test and RealTime HIV-1 Assay, and <0.5 log10cp/mL versus VERSANT HIV-1 Assay. Analysis on 174 specimens tested with the 0.175mL volume VERIS HIV-1 Assay and COBAS HIV-1 Test showed average bias of 0.39 log10cp/mL. Patient monitoring results using VERIS HIV-1 Assay demonstrated similar viral load trends over time to all comparators.

Conclusions: The VERIS HIV-1 Assay for use on the DxN VERIS System demonstrated comparable clinical performance to COBAS® HIV-1 Test, RealTime HIV-1 Assay, and VERSANT HIV-1 Assay.

Keywords: COBAS(®) TaqMan(®) HIV-1 test; HIV-1 RNA quantification; RealTime HIV-1 assay; VERIS HIV-1 assay; VERSANT HIV-1 assay.

Publication types

  • Multicenter Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Europe
  • HIV Infections / diagnosis*
  • HIV Infections / virology
  • HIV-1 / genetics
  • HIV-1 / physiology*
  • Humans
  • Intersectoral Collaboration
  • Mass Screening
  • Molecular Diagnostic Techniques*
  • RNA, Viral / blood*
  • Real-Time Polymerase Chain Reaction / methods
  • Sensitivity and Specificity
  • Viral Load / instrumentation
  • Viral Load / methods*


  • RNA, Viral