Non-invasive urine-based biomarkers can potentially improve current diagnostic and monitoring protocols for bladder cancer (BC). Here we assess the performance of earlier published biomarker panels for BC detection (BC-116) and monitoring of recurrence (BC-106) in combination with cytology, in two prospectively collected patient cohorts.
Of the 602 patients screened for BC, 551 were found eligible. For the primary setting, 73 patients diagnosed with primary BC (n = 27) and benign urological disorders, including patients with macroscopic haematuria, cystitis and/or nephrolithiasis (n = 46) were included. In total, 478 patients under surveillance were additionally considered (83 BC recurrences; 395 negative for recurrence). Urine samples were analysed with capillary electrophoresis-mass spectrometry. The biomarker score was estimated via support vector machine-based software.
Validation of BC-116 biomarker panel resulted in 89% sensitivity and 67% specificity (AUCBC-116 = 0.82). A diagnostic score based on cytology and BC-116 resulted in good (AUCNom116 = 0.85) but not significantly better performance (P = 0.5672). A diagnostic score including BC-106 and cytology was evaluated (AUCNom106 = 0.82), significantly outperforming both cytology (AUCcyt = 0.72; P = 0.0022) and BC-106 (AUCBC-106 = 0.67; P = 0.0012).
BC-116 biomarker panel is a useful test for detecting primary BC. BC-106 classifier integrated with cytology showing >95% negative predictive value, might be useful for decreasing the number of cystoscopies during surveillance.
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All data (except raw files) generated or analysed during this study are included in this article (and its supplementary information files). Raw data are available upon request from the corresponding author.
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This work was supported by BioMedBC (752755; H2020-MSCA-IF-2016) a programme funded by the European Commission (EC) under Marie Sklodowska-Curie actions (MSCA) H2020 Work Programme. The specific role of the funding organisation (EC) was to financially support the acquisition of the data and part of the data analysis.
Prof. HM holds ownership interest in Mosaiques Diagnostics GmbH. Dr. MF and Dr. MM are employed by Mosaiques Diagnostics GmbH. The remaining authors declare no competing interests.
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Informed consent forms were obtained and adhered to Institutional Review Board-approved guidelines. Ethical approval for this study was obtained by the Ethics Committee in Medical School of Hannover (ID:3274–2016). The study was performed in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Mengual, L., Frantzi, M., Mokou, M. et al. Multicentric validation of diagnostic tests based on BC-116 and BC-106 urine peptide biomarkers for bladder cancer in two prospective cohorts of patients. Br J Cancer 127, 2043–2051 (2022). https://doi.org/10.1038/s41416-022-01992-3