Procleix Parvo/HAV Assay (CE Marked)
Single-tube, highly sensitive detection of the parvovirus B19 DNA and hepatitis A virus RNA in blood and plasma donations.
The Procleix Parvo/HAV assay is CE marked, and is available as an in-process test in the US.
Assay Performance Characteristics*
Assay chemistry
- Procleix Panther system
- 
                                                                Quantitative Parvo B19, qualitative HAV, transcription-mediated amplification (TMA) 
Indication
- Procleix Panther system
- 
                                                                Blood screening, source plasma 
Collection tube
- Procleix Panther system
- 
                                                                Serum or plasma from EDTA, ACD, heparin, or sodium citrate anti-coagulated samples 
Pool sizes
- Procleix Panther system
- 
                                                                ID-NAT, 4, 8, 16, 48, 96, 256, 512 
Assay kit size
- Procleix Panther system
- 
                                                                1000 tests 
Detected virus
- Procleix Panther system
- 
                                                                Parvovirus B19 (genotypes 1, 2, and 3a) 
 HAV (genotypes I, II, and III)
| Platform | Procleix Panther system | 
|---|---|
| Assay chemistry | Quantitative Parvo B19, qualitative HAV, transcription-mediated amplification (TMA) | 
| Indication | Blood screening, source plasma | 
| Collection tube | Serum or plasma from EDTA, ACD, heparin, or sodium citrate anti-coagulated samples | 
| Pool sizes | ID-NAT, 4, 8, 16, 48, 96, 256, 512 | 
| Assay kit size | 1000 tests | 
| Detected virus | Parvovirus B19 (genotypes 1, 2, and 3a) | 
Accuracy & Precision Parvovirus B19 Quantitation on Procleix Panther System
100,000
- N (number of replicates tested)
- 
                                                                54 
- Input and Observed log (IU/mL)
- 
                                                                5.00 | 5.12 
- % Accuracy
- 
                                                                102.5 
- Mean log difference (IU/mL)
- 
                                                                0.12 
- Standard deviation (%CV)
- 
                                                                0.13 (2.6%) 
30,000
- N (number of replicates tested)
- 
                                                                54 
- Input and Observed log (IU/mL)
- 
                                                                4.48 | 4.55 
- % Accuracy
- 
                                                                101.5 
- Mean log difference (IU/mL)
- 
                                                                0.07 
- Standard deviation (%CV)
- 
                                                                0.15 (3.3%) 
10,000
- N (number of replicates tested)
- 
                                                                54 
- Input and Observed log (IU/mL)
- 
                                                                4.00 | 3.94 
- % Accuracy
- 
                                                                98.6 
- Mean log difference (IU/mL)
- 
                                                                -0.06 
- Standard deviation (%CV)
- 
                                                                0.10 (2.5%) 
3000
- N (number of replicates tested)
- 
                                                                59 
- Input and Observed log (IU/mL)
- 
                                                                3.48 | 3.43 
- % Accuracy
- 
                                                                98.5 
- Mean log difference (IU/mL)
- 
                                                                -0.05 
- Standard deviation (%CV)
- 
                                                                0.11 (3.2%) 
1000
- N (number of replicates tested)
- 
                                                                60 
- Input and Observed log (IU/mL)
- 
                                                                3.00 | 3.00 
- % Accuracy
- 
                                                                99.9 
- Mean log difference (IU/mL)
- 
                                                                0.00 
- Standard deviation (%CV)
- 
                                                                0.20 (6.6%) 
500
- N (number of replicates tested)
- 
                                                                189 
- Input and Observed log (IU/mL)
- 
                                                                2.70 | 2.69 
- % Accuracy
- 
                                                                99.7 
- Mean log difference (IU/mL)
- 
                                                                -0.01 
- Standard deviation (%CV)
- 
                                                                0.20 (7.3%) 
| B19 (IU/mL) | N (number of replicates tested) | Input and Observed log (IU/mL) | % Accuracy | Mean log difference (IU/mL) | Standard deviation (%CV) | 
|---|---|---|---|---|---|
| 100,000 | 54 | 5.00 | 5.12 | 102.5 | 0.12 | 0.13 (2.6%) | 
| 30,000 | 54 | 4.48 | 4.55 | 101.5 | 0.07 | 0.15 (3.3%) | 
| 10,000 | 54 | 4.00 | 3.94 | 98.6 | -0.06 | 0.10 (2.5%) | 
| 3000 | 59 | 3.48 | 3.43 | 98.5 | -0.05 | 0.11 (3.2%) | 
| 1000 | 60 | 3.00 | 3.00 | 99.9 | 0.00 | 0.20 (6.6%) | 
| 500 | 189 | 2.70 | 2.69 | 99.7 | -0.01 | 0.20 (7.3%) | 
Specificity of the Procleix Parvo/HAV Assay
2010
- HAV 95% (95% CI)
- 
                                                                100% 
 (99.81‐100.00%)
- B19 1000 IU/mL cutoff (95% CI)
- 
                                                                100% 
 (99.81‐100.00%)
- B19 500 IU/mL cutoff (95% CI)
- 
                                                                99.90% 
 (99.64‐99.97%)
| Number of specimens tested | HAV 95% (95% CI) | B19 1000 IU/mL cutoff (95% CI) | B19 500 IU/mL cutoff (95% CI) | 
|---|---|---|---|
| 2010 | 100% | 100% | 99.90% | 
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