To ensure highest sensitivity, artus HCV Kits have been optimized to detect low numbers of HCV RNA. The analytical sensitivity of the artus HCV QS-RGQ Kits is 21 IU/ml in consideration of the purification and assay setup using the QIAsymphony RGQ system (see table "Hit rate analysis for HCV LOD study (data was used for probit analysis and verification study)" below). (1 IU/ml corresponds to 1.21 copies/ml for detection of HCV RNA on the QIAsymphony RGQ system. The conversion factor is an approximation based on an average factor across the assay's dynamic range.)
HCV titer (IU/ml) | Total replicate number | Total number positive | Percentage of positives |
Probit analysis | |||
---|---|---|---|
150 | 12 | 12 | 100 |
100 | 12 | 12 | 100 |
50 | 12 | 12 | 100 |
30 | 32 | 32 | 100 |
20 | 60 | 59 | 98 |
15 | 60 | 51 | 85 |
5 | 60 | 40 | 67 |
0.316 | 57 | 3 | 5 |
Verification | |||
20 | 60 | 57 | 95.00 |
For highest specificity, validation of the artus HCV Kits was carried out using various HCV isolates, including all genotypes 1–6 and related pathogens.
Kit | artus HCV RG RT-PCR Kit | artus HCV QS-RGQ Kit |
Validated sample type | EDTA plasma | EDTA plasma |
Analytical sensitivity | 34 IU/ml | 21 IU/ml |
Linear range | 65 to 1 x 106 IU/ml | 35.0 to 1.77 x 107 IU/ml |
Specificity | HCV genotypes 1–6 | HCV genotypes 1–6 |
The artus HCV RG RT-PCR Kit and the artus HCV QS-RGQ Kit are based on the amplification and simultaneous detection of a specific region of the HCV genome using real-time RT-PCR. The kits provide high levels of specificity, sensitivity, and reproducibility over a broad linear range.
Each artus HCV Kit provides 4 HCV quantitation standards (see figure "Reliable quantitation of HCV load"). Use of the standards enables accurate quantitation of viral load. In addition, the kits contains a second heterologous amplification system to identify possible PCR inhibition. This is detected as an internal control (IC) in a different fluorescence channel from the analytical PCR. The detection limit of the analytical HCV PCR is not reduced.
Kit | artus HCV RG RT-PCR Kit and artus HCV QS-RGQ Kit |
Validated sample type | EDTA plasma |
Amplicon | 240 nt region of the 5' UTR |
artus HCV RT-PCR Kits provide all necessary reagents optimized for reliable HCV RNA detection and quantitation. Simply add template RNA to the ready-to-use PCR master mix, and start the reaction on the appropriate real-time cycler using the optimized cycling program described in the kit handbook.
The QIAsymphony RGQ workflow solution for HCV detection comprises the QIAsymphony SP for sample preparation, the QIAsymphony AS for assay setup, and the artus HCV QS-RGQ Kit on the Rotor-Gene Q. The system enables reliable pathogen detection with a complete IVD workflow (see figure "Integrated QIAsymphony RGQ system for HCV detection").
The artus HCV RG RT-PCR Kit is validated for use with viral RNA purified from human plasma using the IVD-validated QIAamp DSP Virus Kit.
The artus HCV RG RT-PCR Kit enables rapid and sensitive detection and quantitation of HCV RNA purified from human plasma using the QIAamp DSP Virus Kit.
The artus HCV QS-RGQ Kit is designed to be used with the QIAsymphony RGQ system, providing a complete IVD workflow from sample to HCV RNA detection and quantitation.