Journal
AMERICAN JOURNAL OF CLINICAL PATHOLOGY
Volume 130, Issue 3, Pages 401-408Publisher
OXFORD UNIV PRESS INC
DOI: 10.1309/4DXEAFG2JXYF34N3
Keywords
Invader; papillomavirus; HPV; clinical; validation
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Clinical tests of human papillomavirus (HPV) DNA require clinical validation before being offered for use by laboratories. To determine the clinical viability of a laboratory-developed test using the Invader HPV reagents (Third Wave Technologies, Madison,WI), a retrospective study was designed using 213 patients cervical cytological samples. The results of the Invader assay were directly compared with the results obtained using the Hybrid Capture 2 High-Risk HPV assay were also compared with cytologic evaluation. In addition, clinical performance was evaluated using a standard-of-care approach in which colposcopically guided biopsies were done in cases where standard of care dictated, and the histologic features of the biopsy specimens were noted. The Invader-based test demonstrated a clinical sensitivity in atypical squamous cells of undetermined significance cases of 98% for cervical intraepithelial neoplasia (CIN) 2 or worse and 100% for CIN 3 or worse and a negative predictive value of 96.9% (confidence interval, 89.3%-99.6%) using data generated mostly from the use of an earlier version of reagents. These findings support the clinical and laboratory benefits of the Invader method.
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