Clinical performance of the BD onclarity HPV assay using an adjudicated cohort of BD surepath liquid-based cytology specimens

Abstract

Objectives: To compare the performance of the BD Onclarity HPV Assay (BD Diagnostics, Sparks, MD) in BD SurePath liquid-based cytology media with that of Hybrid Capture 2 (HC2, Qiagen, Germantown, MD) samples co-collected in specimen transport medium in an adjudicated patient cohort. Methods: The performance of the BD Onclarity HPV Assay using BD SurePath media was compared with that of HC2 samples co-collected in specimen transport medium using 541 archived samples from a multicenter US clinical trial with histologically adjudicated cervical biopsy specimens. Results: The sensitivity for cervical intraepithelial neoplasia (CIN) 2positivity (n - 104) was 90.4% (95% confidence interval [CI], 83-95) and 93.3% (95% CI, 87-97) and specificity was 76.9% (95% CI, 73-81) and 77.8% (95% CI, 74-82) for the BD assay and HC2, respectively. Nine cases of CIN 2+ had results discordant with the high-risk HPV assay. All were found to have been correctly classified with the BD assay using a novel WA VE denaturing high-performance liquid chromatography double-stranded DNA sequencing method. Conclusions: The clinical performance of The BD Onclarity HPV Assay with respect to histology end points was similar to HC2. Moreover, discordant analysis revealed improved performance of the BD assay with respect to ability to provide extended genotyping information and lack of cross-reactivity with low-risk HPV types associated with cellular abnormalities. The relative risks for CIN 3 disease for HPV 31 and HPV 33/58 (combined) were comparable to that of HPV 18 in this population, suggesting that these genotypes may warrant monitoring in future studies. © American Society for Clinical Pathology.