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Kawada T, Shim SR, Quhal F, Rajwa P, Pradere B, Yanagisawa T, Bekku K, Laukhtina E, von Deimling M, Teoh JYC, Karakiewicz PI, Araki M, Shariat SF. Diagnostic Accuracy of Liquid Biomarkers for Clinically Significant Prostate Cancer Detection: A Systematic Review and Diagnostic Meta-analysis of Multiple Thresholds. Eur Urol Oncol 2024; 7:649-662. [PMID: 37981495 DOI: 10.1016/j.euo.2023.10.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/21/2023] [Accepted: 10/31/2023] [Indexed: 11/21/2023]
Abstract
CONTEXT Many liquid biomarkers have entered clinical practice with the praise to improve the detection of clinically significant prostate cancer (csPCa), helping avoid unnecessary prostate biopsies. OBJECTIVE We aimed to assess the diagnostic accuracy of multianalyte biomarkers for csPCa detection using multiple thresholds. EVIDENCE ACQUISITION A comprehensive literature search was done through PubMed, Web of Science, and Scopus in March 2023 for prospective and retrospective studies reporting the diagnostic performance of liquid biomarkers for detecting csPCa. The outcomes of interest were the diagnostic performance of liquid biomarkers for csPCa detection and identification of optimal thresholds for each biomarker. EVIDENCE SYNTHESIS Overall, 49 studies were eligible for this meta-analysis. Using each representative threshold based on the Youden Index, the pooled sensitivity and specificity for detecting csPCa were 0.85 and 0.37 for prostate cancer gene 3 (PCA3), 0.85 and 0.52 for prostate health index (PHI), 0.87 and 0.58 for four kallikrein (4K), 0.82 and 0.56 for SelectMDx, 0.85 and 0.54 for ExoDx, and 0.82 and 0.59 for mi prostate score (MPS), respectively. The diagnostic odds ratio was highest for 4K (8.84), followed by MPS (7.0) and PHI (6.28). According to the meta-analysis incorporating multiple thresholds, the corresponding sensitivity was 0.77 for 4K, 0.69 for PHI, and 0.63 for PCA3; specificity was 0.72 for PHI, 0.70 for 4K, and 0.69 for PCA3. CONCLUSIONS Regarding the detection of csPCa, 4K had the highest diagnostic performance among the commercial liquid biomarkers. Based on the optimal thresholds calculated by the present meta-analysis, 4K had the highest sensitivity and PHI had the highest specificity for detecting csPCa. Nevertheless, clinical decision-making requires combination strategies between liquid and imaging biomarkers. PATIENT SUMMARY Novel biomarkers for prostate cancer detection were useful for more accurate diagnosis of clinically significant prostate cancer to avoid unnecessary biopsies.
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Affiliation(s)
- Tatsushi Kawada
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Sung Ryul Shim
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Fahad Quhal
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Department of Urology, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Pawel Rajwa
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Department of Urology, Medical University of Silesia, Zabrze, Poland
| | - Benjamin Pradere
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Department of Urology UROSUD, La Croix Du Sud Hospital, Quint Fonsegrives, France
| | - Takafumi Yanagisawa
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Kensuke Bekku
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Ekaterina Laukhtina
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | - Markus von Deimling
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jeremy Yuen-Chun Teoh
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - Pierre I Karakiewicz
- Cancer Prognostics and Health Outcomes Unit, University of Montreal Health Centre, Montreal, Canada
| | - Motoo Araki
- Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shahrokh F Shariat
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria; Cancer Prognostics and Health Outcomes Unit, University of Montreal Health Centre, Montreal, Canada; Department of Urology, Weill Cornell Medical College, New York, NY, USA; Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Urology, Second Faculty of Medicine, Charles University, Prague, Czech Republic; Hourani Center for Applied Scientific Research, AI-Ahliyya Amman University, Amman, Jordan; Research Center for Evidence-Based Medicine, Iranian EBM Center: A Joanna Briggs Institute Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran.
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2
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Robinson HS, Lee SS, Barocas DA, Tosoian JJ. Evaluation of blood and urine based biomarkers for detection of clinically-significant prostate cancer. Prostate Cancer Prostatic Dis 2024:10.1038/s41391-024-00840-0. [PMID: 38858447 DOI: 10.1038/s41391-024-00840-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 04/12/2024] [Accepted: 04/17/2024] [Indexed: 06/12/2024]
Abstract
BACKGROUND Recognizing the limitations of prostate-specific antigen (PSA) screening and the morbidity of prostate biopsies, several blood- and urine-based biomarkers have been proposed for pre-biopsy risk stratification. These assays aim to reduce the frequency of unnecessary biopsies (i.e., negative or Grade Group 1 [GG1]) while maintaining highly sensitive detection of clinically significant cancer (GG ≥ 2) prostate cancer. METHODS We reviewed the literature describing the use of currently available blood- and urine-based biomarkers for detection of GG ≥ 2 cancer, including the Prostate Health Index (PHI), 4Kscore, MyProstateScore (MPS), SelectMDx, ExoDx Prostate Intelliscore (EPI), and IsoPSA. To facilitate clinical application, we focused on the use of biomarkers as a post-PSA secondary test prior to biopsy, as proposed in clinical guidelines. Our outcomes included test performance measures-sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV)-as well as clinical outcomes resulting from biomarker use (i.e., unnecessary biopsies avoided, GG ≥ 2 cancers missed). RESULTS Contemporary validation data (2015-2023) reveal that currently available biomarkers provide ~15-50% specificity at a sensitivity of 90-95% for GG ≥ 2 PCa. Clinically, this indicates that secondary use of biomarker testing in men with elevated PSA could allow for avoidance of up to 15-50% of unnecessary prostate biopsies, while preserving detection of 90-95% of GG ≥ 2 cancers that would be detected under the traditional "biopsy all" approach. CONCLUSIONS The contemporary literature further supports the proposed role of post-PSA biomarker testing to reduce the use of invasive biopsy while maintaining highly sensitive detection of GG ≥ 2 cancer. Questions remain regarding the optimal application of biomarkers in combination or in sequence with mpMRI.
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Affiliation(s)
- Hunter S Robinson
- Department of Urology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Sangmyung S Lee
- Department of Urology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Daniel A Barocas
- Department of Urology, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt-Ingram Cancer Center, Nashville, TN, USA
| | - Jeffrey J Tosoian
- Department of Urology, Vanderbilt University Medical Center, Nashville, TN, USA.
- Vanderbilt-Ingram Cancer Center, Nashville, TN, USA.
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Kekki H, Montoya Perez I, Taimen P, Boström PJ, Gidwani K, Pettersson K. Lectin-nanoparticle concept for free PSA glycovariant providing superior cancer specificity. Clin Chim Acta 2024; 559:119689. [PMID: 38677453 DOI: 10.1016/j.cca.2024.119689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/19/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Using lectins to target cancer-associated modifications of PSA glycostructure for identification of clinically significant prostate cancers, e.g., Gleason score (GS) ≥ 7, from benign and indolent cancers (GS 6), is highly promising yet technically challenging. From previous findings to quantify increased PSA fucosylation in urine, we set out to construct a robust, specific test concept suitable for plasma samples. METHODS Macrophage galactose-binding lectin (MGL) coupled to 100 nm Eu3 + -nanoparticles was used to probe PSA captured from cancer cell lines, seminal plasma, and plasma samples from 249 patients with a clinical suspicion of prostate cancer onto 3 mm dense spots of free PSA antibody fab fragments. Results were compared to four kallikrein tests: tPSA, fPSA, iPSA and hK2. RESULTS The fPSAMGLglycovariant provided superior discrimination of the GS ≥ 7 and benign + GS 6 groups (p 0.0003) compared to fPSA (NS). The corresponding AUC in ROC analysis was 0.70 compared to 0.66 for tPSA. In contrast to all four kallikrein tests, the fPSAMGLGV was independent of prostate gland volume. Using a logistic regression analysis the fPSAMGLGV significantly improved on the four-kallikrein model. CONCLUSIONS Due to Eu-nanoparticles and a dense fPSA capture spot, the fPSAMGL glycovariant identifies an fPSA subform with the highest cancer specificity compared to the four conventional kallikreins.
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Affiliation(s)
- H Kekki
- Biotechnology Unit, Department of Life Technologies, University of Turku, Finland.
| | - I Montoya Perez
- Department of Diagnostic Radiology, University of Turku, Turku, Finland; Department of Computing, University of Turku, Turku, Finland
| | - P Taimen
- Institute of Biomedicine, Department of Pathology, University of Turku, Turku University Hospital, Turku, Finland
| | - P J Boström
- Department of Urology, University of Turku and Turku University Hospital, Turku, Finland
| | - K Gidwani
- Biotechnology Unit, Department of Life Technologies, University of Turku, Finland
| | - K Pettersson
- Biotechnology Unit, Department of Life Technologies, University of Turku, Finland
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Sultan MI, Huynh LM, Kamil S, Abdelaziz A, Hammad MA, Gin GE, Lee DI, Youssef RF. Utility of noninvasive biomarker testing and MRI to predict a prostate cancer diagnosis. Int Urol Nephrol 2024; 56:539-546. [PMID: 37742327 PMCID: PMC10808487 DOI: 10.1007/s11255-023-03786-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 09/01/2023] [Indexed: 09/26/2023]
Abstract
PURPOSE To assess the diagnostic performance and utility of the ExoDx IntelliScore and an OPKO4K score to predict prostate cancer in men presenting with elevated PSA-both as independent predictors and in combination with clinical/MRI characteristics. METHODS Patients with elevated PSA were retrospectively reviewed. Abnormal tests were defined as an OPKO4K score ≥ 7.5% and an ExoDx IntelliScore ≥ 15.6. Four regression models and ROC curves were generated based on: (1) age, PSA, and DRE, (2) model 1 + OPKO4K 4Kscore ≥ 7.5%, (3) model 2 + ExoDx IntelliScore ≥ 15.6, and (4) model 3 + MRI PIRADS 4-5. RESULTS 359 men received an OPKO4K test, 307 had MRI and 113 had ExoDx tests. 163 men proceeded to prostate biopsy and 196 (55%) were saved from biopsy. Mean age was 65.0 ± 8.7 years and mean PSA was 7.1 ± 6.1 ng/mL. Positive biopsies were found in 84 (51.5%) men. The sensitivity and negative predictive value of an OPKO4K score were 86.7% and 72.3%; values for an ExoDx test were 76.5% and 77.1%, respectively. On regression analysis, clinical markers (Age, PSA, DRE) generated an AUC of 0.559. The addition of an OPKO4K score raised the AUC to 0.653. The stepwise addition of an ExoDx score raised the AUC to 0.766. The combined use of both biomarkers, patient characteristics, and MRI yielded an AUC of 0.825. CONCLUSION This analysis demonstrates the high negative predictive value of both the OPKO4K score and ExoDX IntelliScore independently while demonstrating that the combination of an OPKO4K score, an ExoDX IntelliScore, and MRI increases predictive capability for biopsy confirmed prostate cancer.
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Affiliation(s)
- Mark I Sultan
- Department of Urology, University of California, Irvine, Orange, CA, USA
| | - Linda M Huynh
- Department of Urology, University of California, Irvine, Orange, CA, USA
| | - Sarah Kamil
- Department of Urology, University of California, Irvine, Orange, CA, USA
| | - Ahmad Abdelaziz
- Department of Urology, University of California, Irvine, Orange, CA, USA
| | - Muhammed A Hammad
- Department of Urology, University of California, Irvine, Orange, CA, USA
| | - Greg E Gin
- Department of Urology, University of California, Irvine, Orange, CA, USA
| | - David I Lee
- Department of Urology, University of California, Irvine, Orange, CA, USA
| | - Ramy F Youssef
- Department of Urology, University of California, Irvine, Orange, CA, USA.
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Taheri H, Ebrahimi P, Nazari P, Kefayat A, Mahdavian A. An unusual presentation of metastatic prostate cancer in a 44-year-old man: A case report and review of the literature. Clin Case Rep 2024; 12:e8447. [PMID: 38292222 PMCID: PMC10822781 DOI: 10.1002/ccr3.8447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/23/2023] [Accepted: 01/08/2024] [Indexed: 02/01/2024] Open
Abstract
Prostate cancer is one of the two most common non-cutaneous cancers in men. Its presentation might be with unusual symptoms and cause the wrong initial diagnosis. This case report discusses a rare neurologic manifestation of advanced metastatic cancer in a low-risk man. He had been receiving treatment for multiple sclerosis incorrectly due to unusual manifestations such as claudication and pelvic, leg, and shoulder pain. The patient underwent a whole-body bone scan and then a transrectal ultrasound-guided biopsy, which confirmed metastatic prostate cancer with a Gleason score between 7/10 and 10/10 in all samples. Following treatment with chemotherapeutic injections (docetaxel), luteinizing hormone-releasing hormone (LHRH) analogous (Zoladex), and testosterone-suppressing tablets (abiraterone), the disease has been under control and prostate-specific antigen (PSA) level has decreased significantly. The most common sites of metastasis are regional lymph nodes, bones, and lungs. However, there are reports about the spread of this type of cancer to other parts of the body. Although most patients are diagnosed when the tumor is localized to the prostate, in about 25% of patients, the disease is diagnosed when metastasis has occurred. Some markers can assist physicians in the diagnosis of this disease, such as the Prostate Health Index and the 4 K score. Key Clinical Message The diagnosis of prostate cancer should be considered in all age ranges of adult men. The long-distance metastasis might cause unusual presentations of the disease, such as neurologic, musculoskeletal, and dermatologic symptoms and signs far from the origin of the cancer, before genitourinary manifestations. It is crucial to keep the diagnosis of prostate cancer in mind for men with suggestive signs and symptoms that are not usually detected in this disease.
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Affiliation(s)
- Homa Taheri
- Cedars‐Sinai Cardiology DepartmentBeverly HillsCaliforniaUSA
| | - Pouya Ebrahimi
- Ahvaz Jundishapur University of Medical SciencesAhvazIran
| | - Pedram Nazari
- Cancer Research CenterAhvaz Jundishapur University of Medical SciencesAhvazIran
| | | | - Abbas Mahdavian
- Urology DepartmentAhvaz Jundishapur University of Medical SciencesAhvazIran
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Aktary ML, Shewchuk B, Wang Q, Hyndman E, Shack L, Robson PJ, Kopciuk KA. Health-Related and Psychosocial Factors Associated with Prostate Cancer Stage at Diagnosis among Males Participating in Alberta's Tomorrow Project. Prostate Cancer 2023; 2023:4426167. [PMID: 38020965 PMCID: PMC10656198 DOI: 10.1155/2023/4426167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Prostate cancer (PCa) stage at diagnosis is an important predictor of cancer prognosis. In Canada, over one-quarter of males are diagnosed with advanced-stage PCa. Studies have identified several factors associated with PCa stage at diagnosis; however, evidence from Canada is limited. This study aimed to examine associations between sociodemographic characteristics, health history, health practices, and psychosocial factors and PCa stage at diagnosis among males participating in Alberta's Tomorrow Project (ATP), a prospective cohort in Alberta, Canada. The study included males aged 35-69 years who developed PCa until January 2018. Factors associated with PCa stage at diagnosis were examined using partial proportional odds (PPO) ordinal regression models. A total of 410 males were diagnosed with PCa over the study period. A higher number of lifetime prostate-specific antigen tests were associated with earlier-stage PCa (OR 0.91, p = 0.02, 95% CI 0.83-0.99), while higher abdominal circumference (OR 1.02, p = 0.05, 95% CI 1.00-1.03), lower social support (OR 2.34, p < 0.01, 95% CI 1.31-4.17), and having children (OR 2.67, p < 0.01, 95% CI 1.38-5.16) were associated with later-stage disease. This study identified factors previously found in the literature as well as novel factors associated with PCa stage at diagnosis, which can help inform targets for cancer prevention programs to improve PCa prognosis.
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Affiliation(s)
- Michelle L. Aktary
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, T2N 1N4, Calgary, Alberta, Canada
| | - Brittany Shewchuk
- Cancer Epidemiology and Prevention Research, Cancer Care Alberta, Alberta Health Services, T2S 3C3, Calgary, Alberta, Canada
| | - Qinggang Wang
- Cancer Epidemiology and Prevention Research, Cancer Care Alberta, Alberta Health Services, T2S 3C3, Calgary, Alberta, Canada
| | - Eric Hyndman
- Department of Surgery, Urology Section, University of Calgary, 1403 29 Street NW, T2N 2T9, Calgary, Alberta, Canada
- Southern Alberta Institute of Urology, Office 6635, 7007 14 Street SW, T2V 1P9, Calgary, Alberta, Canada
| | - Lorraine Shack
- Cancer Surveillance and Reporting, Alberta Health Services, 1400-10123 99 Street Edmonton, T5J 3H1, Calgary, AB, Canada
| | - Paula J. Robson
- Department of Agricultural, Food and Nutritional Science and School of Public Health, University of Alberta, 116 Street & 85 Avenue, T6G 2R3, Edmonton, Alberta, Canada
- Cancer Care Alberta, Alberta Health Services, 10030-107 Street NW, T5J 3E4, Edmonton, Alberta, Canada
| | - Karen A. Kopciuk
- Cancer Epidemiology and Prevention Research, Cancer Care Alberta, Alberta Health Services, T2S 3C3, Calgary, Alberta, Canada
- Departments of Oncology, Community Health Sciences, and Mathematics and Statistics, University of Calgary, 2500 University Drive NW, T2N 1N4, Calgary, Alberta, Canada
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Shore ND, Polikarpov DM, Pieczonka CM, Henderson RJ, Bailen JL, Saltzstein DR, Concepcion RS, Beebe-Dimmer JL, Ruterbusch JJ, Levin RA, Wissmueller S, Le TH, Gillatt DA, Chan DW, Deng N, Siddireddy JS, Lu Y, Campbell DH, Walsh BJ. Development and evaluation of the MiCheck® Prostate test for clinically significant prostate cancer. Urol Oncol 2023; 41:454.e9-454.e16. [PMID: 37734979 DOI: 10.1016/j.urolonc.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND There is a clinical need to identify patients with an elevated PSA who would benefit from prostate biopsy due to the presence of clinically significant prostate cancer (CSCaP). We have previously reported the development of the MiCheck® Test for clinically significant prostate cancer. Here, we report MiCheck's further development and incorporation of the Roche Cobas standard clinical chemistry analyzer. OBJECTIVES To further develop and adapt the MiCheck® Prostate test so it can be performed using a standard clinical chemistry analyzer and characterize its performance using the MiCheck-01 clinical trial sample set. DESIGN, SETTINGS, AND PARTICIPANTS About 358 patient samples from the MiCheck-01 US clinical trial were used for the development of the MiCheck® Prostate test. These consisted of 46 controls, 137 non-CaP, 62 non-CSCaP, and 113 CSCaP. METHODS Serum analyte concentrations for cellular growth factors were determined using custom-made Luminex-based R&D Systems multi-analyte kits. Analytes that can also be measured using standard chemistry analyzers were examined for their ability to contribute to an algorithm with high sensitivity for the detection of clinically significant prostate cancer. Samples were then re-measured using a Roche Cobas analyzer for development of the final algorithm. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Logistic regression modeling with Monte Carlo cross-validation was used to identify Human Epidydimal Protein 4 (HE4) as an analyte able to significantly improve the algorithm specificity at 95% sensitivity. A final model was developed using analyte measurements from the Cobas analzyer. RESULTS The MiCheck® logistic regression model was developed and consisted of PSA, %free PSA, DRE, and HE4. The model differentiated clinically significant cancer from no cancer or not-clinically significant cancer with AUC of 0.85, sensitivity of 95%, and specificity of 50%. Applying the MiCheck® test to all evaluable 358 patients from the MiCheck-01 study demonstrated that up to 50% of unnecessary biopsies could be avoided while delaying diagnosis of only 5.3% of Gleason Score (GS) ≥3+4 cancers, 1.8% of GS≥4+3 cancers and no cancers of GS 8 to 10. CONCLUSIONS The MiCheck® Prostate test identifies clinically significant prostate cancer with high sensitivity and negative predictive value (NPV). It can be performed in a clinical laboratory using a Roche Cobas clinical chemistry analyzer. The MiCheck® Prostate test could assist in reducing unnecessary prostate biopsies with a marginal number of patients experiencing a delayed diagnosis.
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Affiliation(s)
| | - Dmitry M Polikarpov
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
| | - Christopher M Pieczonka
- Corporate Director of Research of US Urology Partners and Co-Director of Research of Associated Medical Professionals
| | | | | | | | | | - Jennifer L Beebe-Dimmer
- Barbara Ann Karmanos Cancer Institute and Wayne State University School of Medicine Department of Oncology, Detroit, MI
| | - Julie J Ruterbusch
- Barbara Ann Karmanos Cancer Institute and Wayne State University School of Medicine Department of Oncology, Detroit, MI
| | | | | | - Thao Ho Le
- Minomic International Ltd., Sydney, NSW, Australia
| | - David A Gillatt
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
| | - Daniel W Chan
- Center for Biomarker Discovery and Translation, Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Niantao Deng
- Minomic International Ltd., Sydney, NSW, Australia
| | - Jaya Sowjanya Siddireddy
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia; Minomic International Ltd., Sydney, NSW, Australia
| | - Yanling Lu
- Minomic International Ltd., Sydney, NSW, Australia
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Burnett AL, Nyame YA, Mitchell E. Disparities in prostate cancer. J Natl Med Assoc 2023; 115:S38-S45. [PMID: 37202002 DOI: 10.1016/j.jnma.2023.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 02/01/2023] [Indexed: 05/20/2023]
Abstract
Despite substantial advances in early detection/prevention and treatments, and improved outcomes in recent decades, prostate cancer continues to disproportionately affect Black men and is the secondleading cause of cancer death in this subgroup. Black men are substantially more likely to develop prostate cancer and are twice as likely to die from the disease compared with White men. In addition, Black men are younger at diagnosis and face a higher risk of aggressive disease relative to White men. Striking racial disparities endure along the continuum of prostate cancer care, including screening, genomic testing, diagnostic procedures, and treatment modalities. The underlying causes of these inequalities are complex and multifactorial and involve biological factors, structural determinants of equity (i.e., public policy, structural and systemic racism, economic policy), social determinants of health (including income, education, and insurance status, neighborhood/physical environment, community/social context, and geography), and health care factors. The objective of this article is to review the sources of racial disparities in prostate cancer and to propose actionable recommendations to help address these inequities and narrow the racial gap.
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Affiliation(s)
| | - Yaw A Nyame
- Division of Public Health Sciences Fred Hutchinson Cancer Research Center Seattle, WA, United States; Department of Urology, University of Washington, United States
| | - Edith Mitchell
- Sidney Kimmel Cancer at Jefferson, 925 Chestnut Street, Suite 220A, Philadelphia, PA 19107, United States.
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9
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del Pino-Sedeño T, Infante-Ventura D, de Armas Castellano A, de Pablos-Rodríguez P, Rueda-Domínguez A, Serrano-Aguilar P, Trujillo-Martín MM. Molecular Biomarkers for the Detection of Clinically Significant Prostate Cancer: A Systematic Review and Meta-analysis. EUR UROL SUPPL 2022; 46:105-127. [DOI: 10.1016/j.euros.2022.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2022] [Indexed: 11/11/2022] Open
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10
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Bennett A, Beck A, Shaver N, Grad R, LeBlanc A, Limburg H, Gray C, Abou-Setta A, Klarenbach S, Persaud N, Thériault G, Thombs BD, Todd KJ, Bell N, Dahm P, Loblaw A, Del Giudice L, Yao X, Skidmore B, Rolland-Harris E, Brouwers M, Little J, Moher D. Screening for prostate cancer: protocol for updating multiple systematic reviews to inform a Canadian Task Force on Preventive Health Care guideline update. Syst Rev 2022; 11:230. [PMID: 36289518 PMCID: PMC9609189 DOI: 10.1186/s13643-022-02099-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 10/10/2022] [Indexed: 11/25/2022] Open
Abstract
PURPOSE To inform updated recommendations by the Canadian Task Force on Preventive Health Care on screening for prostate cancer in adults aged 18 years and older in primary care. This protocol outlines the planned scope and methods for a series of systematic reviews. METHODS Updates of two systematic reviews and a de novo review will be conducted to synthesize the evidence on the benefits and harms of screening for prostate cancer with a prostate-specific antigen (PSA) and/or digital rectal examination (DRE) (with or without additional information) and patient values and preferences. Outcomes for the benefits of screening include reduced prostate cancer mortality, all-cause mortality, and incidence of metastatic prostate cancer. Outcomes for the harms of screening include false-positive screening tests, overdiagnosis, complications due to biopsy, and complications of treatment including incontinence (urinary or bowel), and erectile dysfunction. The quality of life or functioning (overall and disease-specific) and psychological effects outcomes are considered as a possible benefit or harm. Outcomes for the values and preferences review include quantitative or qualitative information regarding the choice to screen or intention to undergo screening. For the reviews on benefits or harms, we will search for randomized controlled trials, quasi-randomized, and controlled studies in MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials. For the review on values and preferences, we will search for experimental or observational studies in MEDLINE, Embase, and PsycInfo. For all reviews, we will also search websites of relevant organizations, gray literature, and reference lists of included studies. Title and abstract screening, full-text review, data extraction, and risk of bias assessments will be completed independently by pairs of reviewers with any disagreements resolved by consensus or by consulting with a third reviewer. The GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach will be used to assess the certainty of the evidence for each outcome. DISCUSSION The series of systematic reviews will be used by the Canadian Task Force on Preventive Health Care to update their 2014 guideline on screening for prostate cancer in adults aged 18 years and older. Systematic review registration This review has been registered with PROSPERO (CRD42022314407) and is available on the Open Science Framework (osf.io/dm32k).
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Affiliation(s)
- Alexandria Bennett
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
| | - Andrew Beck
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Nicole Shaver
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Roland Grad
- Department of Family Medicine, McGill University, Montreal, Quebec, Canada
| | - Allana LeBlanc
- Global Health and Guidelines Division, Public Health Agency of Canada, Ottawa, Canada
| | - Heather Limburg
- Global Health and Guidelines Division, Public Health Agency of Canada, Ottawa, Canada
| | - Casey Gray
- Global Health and Guidelines Division, Public Health Agency of Canada, Ottawa, Canada
| | - Ahmed Abou-Setta
- Department of Community Health Sciences, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Scott Klarenbach
- Department of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Navindra Persaud
- Department of Family and Community Medicine, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Guylène Thériault
- Department of Family Medicine, McGill University, Montreal, Quebec, Canada
| | - Brett D Thombs
- Lady Davis Institute of the Jewish General Hospital and Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Keith J Todd
- Department of Family Medicine, McGill University, Montreal, Quebec, Canada
| | - Neil Bell
- Department of Family Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Philipp Dahm
- Urology Section, Minneapolis VA Healthcare System and Department of Urology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Andrew Loblaw
- Evaluative Clinical Sciences, Odette Cancer Research Program, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Lisa Del Giudice
- Department of Family and Community Medicine, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Xiaomei Yao
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Becky Skidmore
- Independent Information Specialist, Ottawa, Ontario, Canada
| | | | - Melissa Brouwers
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Julian Little
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - David Moher
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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11
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Henning GM, Andriole GL, Kim EH. Liquid biomarkers for early detection of prostate cancer and summary of available data for their use in African-American men. Prostate Cancer Prostatic Dis 2022; 25:180-186. [PMID: 35246608 DOI: 10.1038/s41391-022-00507-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/20/2021] [Accepted: 01/27/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Several liquid biomarker tests have been developed to account for the limitations of prostate specific antigen (PSA) screening prior to prostate biopsy. African ancestry is an established risk factor for prostate cancer (PCa) and must be particularly considered when evaluating patients with liquid biomarkers. While multiple tests have been developed over decades of exploration, recent advances can help patients and physicians incorporate data into a broader clinical context. METHODS We sought to review currently available liquid biomarker tests in a practical, clinically directed fashion with particular focus on performance in men with African ancestry. We reviewed discovery and validation studies and highlight important considerations for each test. RESULTS We discuss the advantages and limitations of percent free PSA, Prostate Health Index, Progensa® PCA3, ExoDx® Prostate Test, SelectMDx®, 4Kscore® Test, and Mi-Prostate Score and summarize salient studies on their use. A literature review of evidence specifically for men with African ancestry was conducted and available studies were summarized. CONCLUSIONS Liquid biomarkers can be useful tools for aiding in risk stratification prior to prostate biopsy. Use of such tests should be individualized based on a thorough knowledge of supporting evidence and the goals of the patient and physician. Further study should prioritize evaluation of such biomarkers in men with African ancestry.
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Affiliation(s)
- Grant M Henning
- Washington University School of Medicine, St. Louis, MO, USA.
| | | | - Eric H Kim
- Washington University School of Medicine, St. Louis, MO, USA
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12
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Rannikko A, Leht M, Mirtti T, Kenttämies A, Tolonen T, Rinta‐Kiikka I, Kilpeläinen TP, Natunen K, Lilja H, Lehtimäki T, Raitanen J, Kujala P, Ronkainen J, Matikainen M, Petas A, Taari K, Tammela T, Auvinen A. Population‐based randomized trial of screening for clinically significant prostate cancer ProScreen: pilot study. BJU Int 2021; 130:193-199. [PMID: 34958531 PMCID: PMC9327584 DOI: 10.1111/bju.15683] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Objectives To evaluate the feasibility of a population‐based screening trial using prostate‐specific antigen (PSA), a kallikrein panel and multiparametric magnetic resonance imaging (MRI) aimed at minimizing overdiagnosis, while retaining mortality benefit. Patients and Methods Feasibility of the screening algorithm was evaluated in terms of participation, screening test results and cancer detection. A random sample of 400 men aged 65 years was identified from the population registry and invited for screening with three stepwise tests (PSA, kallikrein panel and MRI). Men with PSA levels ≥3 ng/mL were further tested with the kallikrein panel, and those with positive findings (risk >7.5%) were referred for prostate MRI. Men with positive MRI (Prostate Imaging Reporting and Data System [PI‐RADS] score 3–5) had targeted biopsies only. Men with negative MRI, but PSA density ≥0.15 underwent systematic biopsies. Results Of the 399 men invited, 158 (40%) participated and 27 had PSA levels ≥3 ng/mL (7% of the invited and 17% of the participants). Of these, 22 had a positive kallikrein panel (6% of the invited and 81% of the PSA‐positive men). Finally, 10 men (3% of the invited and 45% of 4Kscore [kallikrein panel]‐positive) had a suspicious MRI finding (PI‐RADS score ≥3) and five were diagnosed with a clinically significant prostate cancer (Gleason Grade Group [GG] ≥2) at fusion biopsy (3% of the participants), with two GG 1 cases (1%). Additional testing (kallikrein panel and MRI) after PSA reduced biopsies by 56%. Conclusion The findings constitute proof of principle for our screening protocol, as we achieved a substantial detection rate for clinically significant cancer with few clinically insignificant cases. Participation, however, was suboptimal.
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Affiliation(s)
- Antti Rannikko
- University of Helsinki Faculty of Medicine and Helsinki University Hospital, Department of Urology Helsinki Finland
- Research Program in Systems Oncology Faculty of Medicine University of Helsinki Helsinki Finland
| | - Mare Leht
- Tampere University Faculty of Medicine and Health Technology Tampere Finland
- Helsinki and Uusimaa Hospital District Hyvinkää Hospital Department of Urology Hyvinkää Finland
| | - Tuomas Mirtti
- Research Program in Systems Oncology Faculty of Medicine University of Helsinki Helsinki Finland
- HUS Diagnostic Centre HUS Medical Imaging Centre Pathology Helsinki Finland
| | - Anu Kenttämies
- HUS Diagnostic Centre HUS Medical Imaging Centre Radiology Helsinki Finland
| | - Teemu Tolonen
- Fimlab Laboratories Department of Pathology Tampere Finland
| | - Irina Rinta‐Kiikka
- University of Helsinki Faculty of Medicine and Helsinki University Hospital, Department of Urology Helsinki Finland
- Tampere University Hospital Department of Radiology Tampere Finland
| | - Tuomas P. Kilpeläinen
- University of Helsinki Faculty of Medicine and Helsinki University Hospital, Department of Urology Helsinki Finland
- Research Program in Systems Oncology Faculty of Medicine University of Helsinki Helsinki Finland
| | - Kari Natunen
- Tampere University Faculty of Social Sciences Tampere Finland
| | - Hans Lilja
- Departments of Laboratory Medicine, Surgery, and Medicine Memorial Sloan Kettering Cancer Center New York NY USA
- Department of Translational Medicine Lund University Malmö Sweden
| | - Terho Lehtimäki
- University of Helsinki Faculty of Medicine and Helsinki University Hospital, Department of Urology Helsinki Finland
- Fimlab Laboratories Department of Clinical Chemistry Tampere Finland
| | - Jani Raitanen
- Tampere University Faculty of Social Sciences Tampere Finland
- UKK Institute for Health Promotion Research Tampere Finland
| | - Paula Kujala
- Fimlab Laboratories Department of Pathology Tampere Finland
| | | | - Mika Matikainen
- University of Helsinki Faculty of Medicine and Helsinki University Hospital, Department of Urology Helsinki Finland
| | - Anssi Petas
- University of Helsinki Faculty of Medicine and Helsinki University Hospital, Department of Urology Helsinki Finland
| | - Kimmo Taari
- University of Helsinki Faculty of Medicine and Helsinki University Hospital, Department of Urology Helsinki Finland
| | - Teuvo Tammela
- Tampere University Faculty of Medicine and Health Technology Tampere Finland
- Tampere University Hospital Department of Urology Tampere Finland
| | - Anssi Auvinen
- Tampere University Faculty of Social Sciences Tampere Finland
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13
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Eyrich NW, Morgan TM, Tosoian JJ. Biomarkers for detection of clinically significant prostate cancer: contemporary clinical data and future directions. Transl Androl Urol 2021; 10:3091-3103. [PMID: 34430413 PMCID: PMC8350244 DOI: 10.21037/tau-20-1151] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 04/23/2021] [Indexed: 12/15/2022] Open
Abstract
Use of serum prostate-specific antigen (PSA) testing for early detection of prostate cancer appears to reduce cancer-specific mortality. Due to the limited specificity of PSA for clinically significant [Grade Group (GG) ≥2] cancer, however, screening carries substantial risks, including frequent unnecessary prostate biopsies and overdetection of non-aggressive cancers. To that end, serum and urine biomarkers with improved specificity for GG ≥2 cancer have been proposed for clinical use following PSA. In the current article, we present clinical validation data for five such biomarkers: PHI, 4Kscore, SelectMDx, ExoDx, and MPS. For all studies, we specify the study population (overall biopsy referral vs. pre-specified PSA ranges), previous biopsy status (biopsy-naïve vs. previous negative biopsy), and the proportion of subjects diagnosed with GG ≥2 cancer. Outcomes include test performance characteristics: sensitivity, specificity, negative predictive value (NPV), and positive predictive value (PPV). Published data were used to compute the number of unnecessary biopsies avoided and number of GG ≥2 cancers missed if the biomarker had been used clinically to select for prostate biopsy. The evidence review is preceded by a primer on these and other clinically-relevant summary statistics.
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Affiliation(s)
| | - Todd M Morgan
- Department of Urology, University of Michigan, Ann Arbor, MI, USA.,Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA.,Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Jeffrey J Tosoian
- Department of Urology, University of Michigan, Ann Arbor, MI, USA.,Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA.,Michigan Center for Translational Pathology, University of Michigan, Ann Arbor, MI, USA
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14
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Meehan J, Gray M, Martínez-Pérez C, Kay C, McLaren D, Turnbull AK. Tissue- and Liquid-Based Biomarkers in Prostate Cancer Precision Medicine. J Pers Med 2021; 11:jpm11070664. [PMID: 34357131 PMCID: PMC8306523 DOI: 10.3390/jpm11070664] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/06/2021] [Accepted: 07/13/2021] [Indexed: 12/24/2022] Open
Abstract
Worldwide, prostate cancer (PC) is the second-most-frequently diagnosed male cancer and the fifth-most-common cause of all cancer-related deaths. Suspicion of PC in a patient is largely based upon clinical signs and the use of prostate-specific antigen (PSA) levels. Although PSA levels have been criticised for a lack of specificity, leading to PC over-diagnosis, it is still the most commonly used biomarker in PC management. Unfortunately, PC is extremely heterogeneous, and it can be difficult to stratify patients whose tumours are unlikely to progress from those that are aggressive and require treatment intensification. Although PC-specific biomarker research has previously focused on disease diagnosis, there is an unmet clinical need for novel prognostic, predictive and treatment response biomarkers that can be used to provide a precision medicine approach to PC management. In particular, the identification of biomarkers at the time of screening/diagnosis that can provide an indication of disease aggressiveness is perhaps the greatest current unmet clinical need in PC management. Largely through advances in genomic and proteomic techniques, exciting pre-clinical and clinical research is continuing to identify potential tissue, blood and urine-based PC-specific biomarkers that may in the future supplement or replace current standard practices. In this review, we describe how PC-specific biomarker research is progressing, including the evolution of PSA-based tests and those novel assays that have gained clinical approval. We also describe alternative diagnostic biomarkers to PSA, in addition to biomarkers that can predict PC aggressiveness and biomarkers that can predict response to certain therapies. We believe that novel biomarker research has the potential to make significant improvements to the clinical management of this disease in the near future.
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Affiliation(s)
- James Meehan
- Translational Oncology Research Group, Institute of Genetics and Cancer, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK; (C.M.-P.); (C.K.); (A.K.T.)
- Correspondence:
| | - Mark Gray
- The Royal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Midlothian EH25 9RG, UK;
| | - Carlos Martínez-Pérez
- Translational Oncology Research Group, Institute of Genetics and Cancer, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK; (C.M.-P.); (C.K.); (A.K.T.)
- Breast Cancer Now Edinburgh Research Team, Institute of Genetics and Cancer, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Charlene Kay
- Translational Oncology Research Group, Institute of Genetics and Cancer, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK; (C.M.-P.); (C.K.); (A.K.T.)
- Breast Cancer Now Edinburgh Research Team, Institute of Genetics and Cancer, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Duncan McLaren
- Edinburgh Cancer Centre, Western General Hospital, NHS Lothian, Edinburgh EH4 2XU, UK;
| | - Arran K. Turnbull
- Translational Oncology Research Group, Institute of Genetics and Cancer, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK; (C.M.-P.); (C.K.); (A.K.T.)
- Breast Cancer Now Edinburgh Research Team, Institute of Genetics and Cancer, Western General Hospital, University of Edinburgh, Edinburgh EH4 2XU, UK
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15
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Review of novel liquid-based biomarkers for prostate cancer: towards personalised and targeted medicine. JOURNAL OF RADIOTHERAPY IN PRACTICE 2021. [DOI: 10.1017/s1460396921000248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Background:
Prostate cancer is the most commonly diagnosed cancer in men and it is responsible for about 10% of all cancer mortalities in both American and Canadian men. At present, serum prostate-specific antigen levels remain the most commonly used test to detect prostate cancer, and the standard and definitive diagnosis of the disease is via prostate biopsy. Conventional tissue biopsies are usually invasive, expensive, painful, time-consuming, and unsuitable for screening and need to be consistently evaluated by expert pathologists and have limited repeatability. Consequently, liquid biopsies are emerging as a favourable alternative to conventional tissue biopsies, providing a non-invasive and cost-effective approach for screening, diagnosis, treatment and monitoring of prostate cancer patients.
Materials and methods:
We searched several databases from August to December 2020 for relevant studies published in English between 2000 and 2020 and reporting on liquid-based biomarkers available in detectable quantities in patient bodily fluid samples. In this narrative review paper, we describe seven novel and promising liquid-based biomarkers that potentially account for individual patient variability as well as used in disease risk assessment, screening for early disease detection and diagnosis, identification of patients’ risk for metastatic disease and subsequent relapse, monitoring patient response to specific treatment and providing clinicians the potential to stratify patients likely to benefit from a particular treatment.
Conclusions:
The concept of precision medicine from prevention to treatment techniques that take individual patient variability into account will depend on the development of effective clinical biomarkers that interrogate key aberrant pathways potentially targetable with molecular targets or immunologic therapies. Liquid-based biomarkers with high sensitivity and specificity for prostate cancer are emerging as minimally invasive, lower risk, readily obtainable and easily repeatable technique for screening for early disease detection and diagnosis, patient stratification at diagnosis into different risk categories, identification of patients’ risk for metastatic disease and subsequent relapse, and real-time monitoring of patient response to specific treatment. Thus, effective liquid-based biomarkers will potentially shift the treatment paradigm of prostate cancer towards more personalised and targeted medicine.
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16
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4Kscore diagnostic value in patients with high-grade prostate cancer using cutoff values of 7.5% to 10%: A meta-analysis. Urol Oncol 2021; 39:366.e1-366.e10. [PMID: 33685800 DOI: 10.1016/j.urolonc.2020.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/24/2020] [Accepted: 11/01/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Reported 4Kscore thresholds used to differentiate between patients with and without high-grade prostate cancer (CaP) were variable. Patients with 4Kscore results <7.5% have been proven to be at low risk of carrying high-grade CaP. This study employed a meta-analysis approach in order to assess the diagnostic accuracy of the 4Kscore as a means of detecting high-grade CaP in prostate biopsy samples using cutoff values of 7.5% to 10%. METHODS Relevant studies published as of December 2019 were identified via searching PubMed, Embase, and Cochrane Library. Data pertaining to 4Kscore diagnostic accuracy were then extracted from these studies and utilized for the calculation of pooled sensitivity , specificity , diagnostic odds ratio , and area under the curve values relating to high-grade CaP diagnosis. RESULTS In total, 9 studies incorporating 1,689 high-grade CaP patients were included in our meta-analysis. Following the exclusion of 1 outlier study, the pooled sensitivity, specificity , diagnostic odds ratio , and area under the curve values for 4Kscore diagnostic accuracy with corresponding 95% confidence intervals (CIs) were 0.90 (95%CI: 0.86-0.92), 0.44 (95%CI: 0.36-0.52), 7 (95%CI: 5-8), and 0.81 (95%CI: 0.77-0.84), respectively. CONCLUSION These findings indicate that 4Kscore can be used as a model for the diagnosis of high-grade CaP. However, we detected significant heterogeneity among studies that was not explained by subgroup or meta-regression analysis, thus lowering our confidence in these results. It is therefore essential that future large, well-designed studies be conducted so as to confirm whether the 4Kscore can be used with cutoff values of 7.5% to 10% to reliably detect high-grade CaP.
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17
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A review of current clinical biomarkers for prostate cancer: towards personalised and targeted therapy. JOURNAL OF RADIOTHERAPY IN PRACTICE 2020. [DOI: 10.1017/s1460396920001168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Background:
Prostate cancer is the most commonly diagnosed cancer in men and it is responsible for about 10% of all cancer mortality in Canadian men. The current ‘gold standard’ for the diagnosis of prostate cancer is a prostate biopsy and the decision on when to biopsy a patient with non-suspicious Digital Rectal Examination (DRE) result and total prostate specific antigen (tPSA) of 4–10 ng/ml can be challenging. In order to shift the treatment paradigm of prostate cancer toward more personalised and targeted therapy, there is the need for a clear system that makes its detection binary so as to decrease the rate of inaccurate detections. Therefore in recent years, there have been several investigations into the development of various biomarkers with high sensitivity and specificity for screening, early detection and personalised patient-specific targeted medicine from diagnosis to treatment of the disease.
Materials and methods:
This paper reports on nine currently available clinical biomarkers used in screening for early detection and diagnosis, to reduce the number of unnecessary biopsies, in risk assessment of aggressive disease and in monitoring treatment response of prostate cancer.
Conclusion:
Current clinical prostate cancer biomarkers have the potential for a personalised risk assessment of aggressive disease and the risk of developing distant metastatic disease and have been proven to be useful tools to guide clinicians in personalised patient-specific targeted treatment and in the shared decision making between patients and their physicians regarding prostate biopsy and treatment. Using biomarkers to select patients with a significant probability of aggressive prostate cancer would potentially avoid premature death from the disease, while at the same time would safely preclude patients who do not require unnecessary invasive intervention.
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18
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Pakarainen T, Nevalainen J, Talala K, Taari K, Raitanen J, Kujala P, Stenman UH, Tammela TLJ, Auvinen A. Number of screening rounds attended and incidence of high-risk prostate cancer in the Finnish Randomized Study of Screening for Prostate Cancer (FinRSPC). Cancer 2020; 127:188-192. [PMID: 33048394 DOI: 10.1002/cncr.33254] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/21/2020] [Accepted: 08/31/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND The European Randomized Study of Screening for Prostate Cancer has shown a 20% reduction in prostate cancer (PC) mortality by prostate-specific antigen-based screening. In addition, screening has been shown to reduce the risk of advanced PC. The objective of the current study was to analyze the impact of screening participation on the incidence of PC by risk group. METHODS The participants in the screening arm of the Finnish trial (31,867 men) were classified according to screening attendance in a time-dependent fashion. Initially, all men in the screening arm were regarded as nonattenders until the first screening attendance; they then remained in the once-screened group until the second screen and similarly for the possible third round. The control arm formed the reference group. Follow-up started at randomization and ended at the time of diagnosis of PC, emigration, or the end of 2015. PC cases were divided into risk groups according to European Association of Urology definitions. RESULTS The incidence of low-risk PC increased with the number of screens, whereas no clear relation with participation was noted in the intermediate-risk and high-risk cases. For patients with advanced PC, attending screening at least twice was associated with a lower risk. CONCLUSIONS Screening reduces the risk of advanced PC after only 2 screening cycles. A single screen demonstrated no benefit in terms of PC incidence. Repeated screening is necessary to achieve screening advantages.
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Affiliation(s)
- Tomi Pakarainen
- Department of Urology, Tampere University Hospital, Tampere, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jaakko Nevalainen
- Unit of Health Sciences, Faculty of Social Sciences, Tampere University, Tampere, Finland
| | | | - Kimmo Taari
- Department of Urology, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Jani Raitanen
- Unit of Health Sciences, Faculty of Social Sciences, Tampere University, Tampere, Finland.,UKK Institute for Health Promotion, Tampere, Finland
| | - Paula Kujala
- Department of Pathology, FimLab Laboratories, Tampere University Hospital, Tampere, Finland
| | - Ulf-Håkan Stenman
- Department of Clinical Chemistry, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Teuvo L J Tammela
- Department of Urology, Tampere University Hospital, Tampere, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Anssi Auvinen
- Unit of Health Sciences, Faculty of Social Sciences, Tampere University, Tampere, Finland
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19
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Domenig P, Booher J, Goldman B, Greenlee J, Sircus S, Boura JA, Chuba P. Management of Prostate Cancer During COVID-19 Pandemic: Perspective From Urologists and Radiation Oncologists in COVID Dense Metro Detroit. Cureus 2020; 12:e9648. [PMID: 32923248 PMCID: PMC7480779 DOI: 10.7759/cureus.9648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 08/10/2020] [Indexed: 11/05/2022] Open
Abstract
Objective To survey Urologists and Radiation Oncologists in Metropolitan Detroit regarding practice patterns in managing non-metastatic prostate cancer during the pandemic. Methods An online survey was created to capture the perspective of the impact the COVID-19 restrictions have on the management of prostate cancer by Urologists and Radiation Oncologists in the Detroit Metropolitan area. Results While most physicians felt that their facilities had adequate quantities of personal protective equipment (PPE), one in four offices reported that they did not have sufficient access to PPE. Urologists surveyed indicated that most of the low risk prostate cancer surgeries were cancelled and 56.2% had half or more of intermediate and high risk disease prostatectomies cancelled as well. Treatment options were then shifted towards either temporary surveillance or hormone therapy. Radiation Oncologists indicated that prostate cancer patients ready to start treatment were mostly delayed with temporary surveillance or hormone therapy depending on risk category (60% indicated they delayed low risk and favorable intermediate risk cases, 56% unfavorable intermediate risk cases, and 44% high risk cases). More than 80% of patients already undergoing treatment continued radiation. Conclusion In the setting of this pandemic, the management of prostate cancer has shifted to a much more conservative approach. While the response to the crisis has not been uniform, the majority of the practitioners followed newly established guidelines. The long-term outcomes of delays and deviations from standard treatment approaches will remain to be seen.
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Affiliation(s)
- Peter Domenig
- Urology, Ascension Macomb-Oakland Hospital, Warren, USA
| | | | | | | | - Scott Sircus
- Urology, Ascension Macomb-Oakland Hospital, Warren, USA
| | | | - Paul Chuba
- Radiation Oncology, Ascension Macomb-Oakland Hospital, Warren, USA
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20
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21
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Abstract
Prostate cancer is the most common non-cutaneous cancer among men in the United States. In the last decade there has been a rapid expansion in the field of biomarker assays for diagnosis, prognosis, and treatment prediction in prostate cancer. The evidence base for these assays is rapidly evolving. With several commercial assays available at each stage of the disease, deciding which genomic assays are appropriate for which patients can be nuanced for physicians. In an effort to help guide these decisions in clinical practice, we aim to give an update on the current status of the biomarker field of prostate cancer.
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Affiliation(s)
- Zachary Kornberg
- Department of Radiation Oncology, UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA
| | - Matthew R Cooperberg
- Department of Urology, UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA
| | - Daniel E Spratt
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Felix Y Feng
- Department of Radiation Oncology, UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA
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22
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Rosenberg MT. Make the DRE great again. Int J Clin Pract 2017; 71. [PMID: 28613451 DOI: 10.1111/ijcp.12953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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