Journal
JOURNAL OF CLINICAL VIROLOGY
Volume 45, Issue -, Pages S39-S47Publisher
ELSEVIER
DOI: 10.1016/S1386-6532(09)70007-1
Keywords
HPV; APTIMA (R) HPV Assay; HPV; E6/E7 mRNA; analytical sensitivity; analytical specificity; reproducibility
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Background: Human papillomavirus (HPV) testing has improved the sensitivity for the detection of cervical pre-cancer and cancer as compared to Pap testing. Several HPV tests are commercially available and most target the DNA from 13 or 14 high-risk HPV types. The APTIMA(R) HPV Assay however, detects HPV E6/E7 mRNA from 14 high-risk types of HPV: 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68. Objective: To determine the analytical performance characteristics of the APTIMA HPV Assay. Study Design: Analytical sensitivity, analytical specificity, reproducibility, and the effect of potentially interfering substances was determined for the APTIMA HPV Assay on both the DTS (semi-automated) and TIGRIS DTS (fully automated) systems. Results: The 95% detection limit for both systems was between 17 and 488 copies/reaction, depending on the HPV type. The assay did not cross-react with normal flora and opportunistic organisms that may be found in cervical samples, or tow-risk HPV types. Spermicides, antifungal and anti-itch medications, whole blood, glacial acetic acid, and most lubricants did not interfere with assay performance. Those lubricants containing polyquaternium 15 did interfere with assay performance. Inter-instrument, inter-operator, inter-tot, and inter-run signal variability were <10% for >99% of the data. Intra-run variability was <15%, except for those samples with concentrations at or below the 95% detection limit of the assay. Conclusions: Based upon the analytical sensitivity, analytical specificity, and low variability, the APTIMA HPV Assay showed excellent performance and robustness. (C) 2009 Elsevier B.V. All rights reserved.
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