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Medline ® Abstract for Reference 8

of 'Techniques and interpretation of HIV-1 RNA quantitation'

Fully automated quantification of human immunodeficiency virus (HIV) type 1 RNA in human plasma by the COBAS AmpliPrep/COBAS TaqMan system.
Schumacher W, Frick E, Kauselmann M, Maier-Hoyle V, van der Vliet R, Babiel R
J Clin Virol. 2007;38(4):304.
BACKGROUND: HIV-1 RNA is a key parameter for reliable diagnosis and treatment of HIV-1 infection. The determination of HIV-1 RNA reduces the pre-seroconversion period in the diagnosis of HIV-1 infection and supports clinical management of HIV-1-infected patients.
OBJECTIVES AND STUDY DESIGN: The COBAS AmpliPrep/COBAS TaqMan HIV-1 Test combines automated extraction of total nucleic acids on the COBAS AmpliPrep Instrument with real-time PCR on the COBAS TaqMan Analyzer, thus greatly reducing hands-on time during sample preparation and amplification/detection. The test was evaluated for sensitivity, dynamic range, precision, subtype inclusivity, interfering substances, diagnostic and analytical specificity, as well as correlation with three other commercial tests for HIV-1 RNA quantification.
RESULTS: The COBAS AmpliPrep/COBAS TaqMan HIV-1 Test demonstrated an assay sensitivity of 40 copies/mL, a greater than 5 log(10) measuring range of 40-1.0E+07 copies/mL (1.6-7.0 log(10)) and a reliable determination of HIV-1 group M and N subtypes in EDTA plasma. Quantification results were highly correlated with those obtained by the COBAS AMPLICOR HIV-1 MONITOR Test v1.5, the COBAS AmpliPrep/COBAS AMPLICOR HIV-1 MONITOR Test v1.5 and the VERSANT HIV-1 RNA 3.0 assay.
CONCLUSIONS: The COBAS AmpliPrep/COBAS TaqMan HIV-1 Test excellently satisfies the requirements for reliable quantification of HIV-1 RNA in clinical specimens by a broad linear measuring range and a fully automated quantification procedure. It is highly appropriate for therapy monitoring and routine management of HIV-1 infection.
Roche Molecular Diagnostics, Roche Diagnostics GmbH, Werk Penzberg, Nonnenwald 2, 82377 Penzberg, Germany. wolfram.schumacher@roche.com<wolfram.schumacher@roche.com>