Profile of Roche's cobas® HCV tests

Abstract

Molecular assays for detection and accurate quantitation of hepatitis C virus (HCV) RNA have been important for identification and management of the hepatitis C. Furthermore, the HCV genotype should be assessed prior to treatment initiation. Recently, Roche developed the cobas® HCV tests for use on the cobas® 6800/8800 Systems and the cobas® 4800 System and the cobas® HCV genotyping (GT) test for use on the cobas® 4800 System. Areas covered: The analytic and clinical performance of the newly-developed tests is described according to the currently existing literature. Both tests for detection and quantitation of HCV RNA have been shown to be sensitive and linear, and correlate well with established Roche tests used in the routine diagnostic laboratory. The cobas® HCV GT test shows a good performance and is suitable for identification of HCV genotypes 1 to 6 and genotype 1 subtypes a and b in clinical specimens from individuals with chronic HCV infection. Expert commentary: The new tests are effective in screening for hepatitis C infection and in the management of patients with chronic HCV infection ensuring full HCV genotype coverage. They will replace the established Roche tests within the next few years.

Keywords: HCV RNA quantitation; HCV genotyping; Hepatitis C virus; cobas® 4800; cobas® 6800; cobas® 8800; cobas® HCV GT; directly acting antivirals.