Clinical Validation of the Aptima Bacterial Vaginosis and Aptima Vaginitis Assays: Results from a Prospective Multicenter Clinical Study.

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2020
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Abstract
Infectious vaginitis due to bacterial vaginosis (BV), vulvovaginal candidiasis (VVC), and accounts for a significant proportion of all gynecologic visits in the United States. A prospective multicenter clinical study was conducted to validate the performance of two new diagnostic transcription-mediated amplification nucleic acid amplification tests (NAATs) for diagnosis of BV, VVC, and trichomoniasis. Patient- and clinician-collected vaginal-swab samples obtained from women with symptoms of vaginitis were tested with the Aptima BV and Aptima vaginitis (CV/TV) assays. The results were compared to Nugent (plus Amsel for intermediate Nugent) scores for BV, cultures and DNA sequencing for VVC, and a composite of NAAT and culture for The prevalences of infection were similar for clinician- and patient-collected samples: 49% for BV, 29% for VVC due to the species group, 4% for VVC due to , and 10% for Sensitivity and specificity estimates for the investigational tests in clinician-collected samples were 95.0% and 89.6%, respectively, for BV; 91.7% and 94.9% for the species group; 84.7% and 99.1% for ; and 96.5% and 95.1% for Sensitivities and specificities were similar in patient-collected samples. In a secondary analysis, clinicians' diagnoses, in-clinic assessments, and investigational-assay results were compared to gold standard reference methods. Overall, the investigational assays had higher sensitivity and specificity than clinicians' diagnoses and in-clinic assessments, indicating that the investigational assays were more predictive of infection than traditional diagnostic methods. These results provide clinical-efficacy evidence for two diagnostic NAATs that can detect the main causes of vaginitis.
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Authors Schwebke, Jane R;Taylor, Stephanie N;Ackerman, Ronald;Schlaberg, Robert;Quigley, Neil B;Gaydos, Charlotte A;Chavoustie, Steven E;Nyirjesy, Paul;Remillard, Carmelle V;Estes, Philip;McKinney, Byron;Getman, Damon K;Clark, Craig;
Journal Journal of clinical microbiology
Year 2020
DOI
e01643-19
URL
Keywords
specificity sensitivity candidiasis diagnostic accuracy trichomoniasis amsel criteria aptima nugent score bacterial vaginosis clinician’s diagnosis molecular test

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