Multiparametric MRI SelectMDx Accuracy in the Diagnosis of Clinically Significant PCa in Men Enrolled in Active Surveillance
Affiliations
Background/aim: To evaluate the diagnostic accuracy of the urinary SelectMDx test in the diagnosis of clinically significant prostate cancer (csPCa) in men enrolled in an active surveillance (AS) protocol.
Patients And Methods: From July 2015 to July 2018, 125 men with very low-risk PCa were enrolled in the AS protocol; all patients underwent confirmatory transperineal saturation biopsy (SPBx). In the presence of PI-RADS score ≥3, a targeted MRI/TRUS fusion-guided biopsy was added to SPBx. Post-digital rectal examination urine was collected in 45/125 (36%) patients before SPBx; the genetic urine analysis was performed using a biomarker-based risk score model, the SelectMDx, that measured mRNA levels of distal-less homeobox 1 (DLX1) and homeobox C6 (HOXC6).
Results: A total of 9/45 (20%) patients were reclassified as csPCa (7 cases=Grade Group 2; 2 cases=Grade Group 3); sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of mpMRI vs. SelectMDx in the diagnosis of csPCa were equal to 66.6 vs. 55.6%, 87.7 vs. 65.8%, 54.5 vs. 27.8%, 92.3 vs. 87%, 84.9 vs. 70.3%, respectively.
Conclusion: SPBx combined with MRI/TRUS fusion biopsy significantly outperformed the diagnostic accuracy of SelectMDx (70.3%) in the diagnosis of csPCa in men enrolled in AS.
Liquid Biomarkers in Prostate Cancer Diagnosis: Current Status and Emerging Prospects.
Liu Y, Hatano K, Nonomura N World J Mens Health. 2024; 43(1):8-27.
PMID: 38772530 PMC: 11704174. DOI: 10.5534/wjmh.230386.
A meta-analysis for the diagnostic accuracy of SelectMDx in prostate cancer.
Wu H, Wu Y, He P, Liang J, Xu X, Ji C PLoS One. 2024; 19(2):e0285745.
PMID: 38329970 PMC: 10852267. DOI: 10.1371/journal.pone.0285745.
Biomarkers of Aggressive Prostate Cancer at Diagnosis.
Boehm B, York M, Petrovics G, Kohaar I, Chesnut G Int J Mol Sci. 2023; 24(3).
PMID: 36768533 PMC: 9916581. DOI: 10.3390/ijms24032185.
Yazbek Hanna M, Winterbone M, OConnell S, Olivan M, Hurst R, Mills R Cancers (Basel). 2023; 15(3).
PMID: 36765747 PMC: 9913640. DOI: 10.3390/cancers15030789.
Xu G, Li J, Xiang L, Yang B, Chen Y, Sun Y Asian J Androl. 2022; 25(3):410-415.
PMID: 36348578 PMC: 10226505. DOI: 10.4103/aja202276.