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Cindolo L, Bertolo R, Minervini A, Sessa F, Muto G, Bove P, Vittori M, Bozzini G, Castellan P, Mugavero F, Falsaperla M, Schips L, Celia A, Bada M, Porreca A, Pastore A, Al Salhi Y, Giampaoli M, Novella G, Rizzetto R, Trabacchin N, Mantica G, Pini G, Lombardo R, Tubaro A, Antonelli A, De Nunzio C. External validation of Cormio nomogram for predicting all prostate cancers and clinically significant prostate cancers. World J Urol 2020; 38:2555-2561. [PMID: 31907633 DOI: 10.1007/s00345-019-03058-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 12/12/2019] [Indexed: 01/13/2023] Open
Abstract
PURPOSE Recently, the Cormio et al. nomogram has been developed to predict prostate cancer (PCa) and clinically significant PCa using benign prostatic obstruction parameters. The aim of the present study was to externally validate the nomogram in a multicentric cohort. METHODS Between 2013 and 2019, patients scheduled for ultrasound-guided prostate biopsy were prospectively enrolled at 11 Italian institutions. Demographic, clinical and histological data were collected and analysed. Discrimination and calibration of Cormio nomogram were assessed with the receiver operator characteristics (ROC) curve and calibration plots. The clinical net benefit of the nomogram was assessed with decision curve analysis. Clinically significant PCa was defined as ISUP grade group > 1. RESULTS After accounting for inclusion criteria, 1377 patients were analysed. 816/1377 (59%) had cancer at final pathology (574/816, 70%, clinically significant PCa). Multivariable analysis showed age, prostate volume, DRE and post-voided residual volume as independent predictors of any PCa. Discrimination of the nomogram for cancer was 0.70 on ROC analysis. Calibration of the nomogram was excellent (p = 0.94) and the nomogram presented a net benefit in the 40-80% range of probabilities. Multivariable analysis for predictors of clinically significant PCa found age, PSA, prostate volume and DRE as independent variables. Discrimination of the nomogram was 0.73. Calibration was poor (p = 0.001) and the nomogram presented a net benefit in the 25-75% range of probabilities. CONCLUSION We confirmed that the Cormio nomogram can be used to predict the risk of PCa in patients at increased risk. Implementation of the nomogram in clinical practice will better define its role in the patient's counselling before prostate biopsy.
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Affiliation(s)
- Luca Cindolo
- Urology Department, "Villa Stuart" Private Hospital, Via Trionfale, 5952-00136, Rome, Italy.
| | | | - Andrea Minervini
- Department of Urology, Azienda Ospedaliera Careggi, Universitá di Firenze, Florence, Italy
| | - Francesco Sessa
- Department of Urology, Azienda Ospedaliera Careggi, Universitá di Firenze, Florence, Italy
| | - Gianluca Muto
- Department of Urology, Azienda Ospedaliera Careggi, Universitá di Firenze, Florence, Italy
| | - Pierluigi Bove
- Urology Department, "San Carlo di Nancy" Hospital, Rome, Italy
| | - Matteo Vittori
- Urology Department, "San Carlo di Nancy" Hospital, Rome, Italy
| | | | | | | | | | - Luigi Schips
- Department of Urology, SS. Annunziata Hospital, Chieti, Italy
| | - Antonio Celia
- Department of Urology, San Bassiano Hospital, Bassano del Grappa, Italy
| | - Maida Bada
- Department of Urology, San Bassiano Hospital, Bassano del Grappa, Italy
| | - Angelo Porreca
- Department of Robotic Urological Surgery, Abano Terme Hospital, Abano Terme, Italy
| | - Antonio Pastore
- Urology Unit, Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Yazan Al Salhi
- Urology Unit, Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Marco Giampaoli
- Department of Robotic Urological Surgery, Abano Terme Hospital, Abano Terme, Italy
| | - Giovanni Novella
- Urologic Clinic, University Hospital, Ospedale Policlinico, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Riccardo Rizzetto
- Urologic Clinic, University Hospital, Ospedale Policlinico, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Nicoló Trabacchin
- Urologic Clinic, University Hospital, Ospedale Policlinico, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | | | | | - Riccardo Lombardo
- Department of Urology, Ospedale Sant'Andrea-Universitá di Roma "Sapienza", Rome, Italy
| | - Andrea Tubaro
- Department of Urology, Ospedale Sant'Andrea-Universitá di Roma "Sapienza", Rome, Italy
| | - Alessandro Antonelli
- Urologic Clinic, University Hospital, Ospedale Policlinico, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Cosimo De Nunzio
- Department of Urology, Ospedale Sant'Andrea-Universitá di Roma "Sapienza", Rome, Italy
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Brikun I, Nusskern D, Gillen D, Lynn A, Murtagh D, Feczko J, Nelson WG, Freije D. A panel of DNA methylation markers reveals extensive methylation in histologically benign prostate biopsy cores from cancer patients. Biomark Res 2014; 2:25. [PMID: 25548652 PMCID: PMC4278343 DOI: 10.1186/s40364-014-0025-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 11/28/2014] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Men with a negative first prostate biopsy will undergo one or more additional biopsies if they remain at high suspicion of prostate cancer. To date, there are no diagnostic tests capable of identifying patients at risk for a positive diagnosis with the predictive power needed to eliminate unnecessary repeat biopsies. Efforts to develop clinical tests using the epigenetic signature of cores recovered from first biopsies have been limited to a few markers and lack the sensitivity and specificity needed for widespread clinical adoption. METHODS We developed methylation-specific quantitative polymerase chain reaction assays for a panel of 24 markers that are preferentially methylated in prostate cancer. We modified the bisulfite conversion conditions to allow the integration of the methylation information from multiple markers. We determined the methylation status of the 24 markers in 213 prostate biopsy cores from 104 patients, 37 prostate cancer patients and 67 controls. We performed logistic regression on combinations of markers as well as the entire panel of 24 markers to identify the best candidates for a diagnostic test. RESULTS The marker panel differentiated between cancer cores and benign cores from non-cancer patients with 100% sensitivity and 97% specificity. Furthermore, the panel detected significant methylation in benign cores from prostate cancer patients that was not present in controls. Using methylation of 5 out of 24 to define a cancer case, the analysis of a single benign biopsy core identified 62% of prostate cancer patients undergoing repeat biopsies. ROC curve analysis showed that markers commonly methylated in benign cores from cancer patients are the best candidates for a diagnostic test. The results suggest that 5 to 10 markers will be needed to achieve optimal predictive power. CONCLUSIONS This study shows that epigenetic field effects differ significantly between cancer patients and controls. Their detection in benign biopsy cores can form the basis of diagnostic tests to identify patients in need of repeat biopsies, reducing the cost of continued PCA screening by up to 40%. They could also be used to identify prostate cancer patients with low grade disease who are likely candidates for active surveillance or focal therapy.
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Affiliation(s)
- Igor Brikun
- />Euclid Diagnostics LLC, Crown Point, Indiana USA
| | | | - Daniel Gillen
- />Department of Statistics, University of California Irvine, Irvine, California USA
| | - Amy Lynn
- />Consultants in Laboratory Medicine, Toledo, Ohio USA
| | | | - John Feczko
- />Pathology Consultants, Michigan City, Indiana USA
| | - William G Nelson
- />Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, Maryland USA
| | - Diha Freije
- />Euclid Diagnostics LLC, Crown Point, Indiana USA
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Carrillo MC, Brashear HR, Logovinsky V, Ryan JM, Feldman HH, Siemers ER, Abushakra S, Hartley DM, Petersen RC, Khachaturian AS, Sperling RA. Can we prevent Alzheimer's disease? Secondary "prevention" trials in Alzheimer's disease. Alzheimers Dement 2013; 9:123-131.e1. [PMID: 23411394 DOI: 10.1016/j.jalz.2012.12.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Current research including the basic biology of Alzheimer's disease (AD) provides a foundation to explore whether our current state of knowledge is sufficient to initiate prevention studies and allow us to believe prevention of AD is possible. Current research and recently revised criteria for the diagnosis of AD by the National Institutes on Aging and the Alzheimer's Association suggest a continuum of disease from preclinical asymptomatic to symptomatic Alzheimer's dementia. In light of these revised criteria, the possibility of secondary prevention and even primary prevention is under discussion. The Alzheimer's Association Research Roundtable convened a meeting to discuss the rationale and feasibility of conducting secondary prevention trials in AD.
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