Abstract
Prostate-specific antigen (PSA) screening has led to a dramatic increase in prostate cancer detection with a concurrent stage migration. Although the test has revolutionized prostate cancer detection by identifying disease that is potentially curable in the majority of men, only 25% of men receiving test results of PSA >4 ng/ml will have prostate cancer and many men receiving a normal PSA will have disease, including high-grade disease. There is a need for improved biomarkers for detecting prostate cancer. One such method of cancer detection is surface-enhanced laser desorption and ionization (SELDI). The Early Detection Research Network (EDRN) validation study for SELDI for prostate cancer is described. In a three-stage study, the portability and reproducibility of the technique will be determined; the predictive algorithm will be refined in a multi-institutional case-control population; followed by ultimate validation in the context of a prospective trial with complete disease ascertainment. The unique aspect of the EDRN SELDI validation study is the novel use of two groups of cancer cases: those cases with higher-risk disease (Gleason ≥ 7) and those cases with lower-risk disease (Gleason ≤ 6). This study will allow the first evaluation of a predictive algorithm that includes prognosis in disease screening. The EDRN SELDI prostate cancer biomarker validation study is a rigorous evaluation of a new detection method for prostate cancer. The methodologies used for this evaluation will prove useful for guiding future biomarker studies in this challenging disease.
Original language | English (US) |
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Pages (from-to) | 337-343 |
Number of pages | 7 |
Journal | Urologic Oncology: Seminars and Original Investigations |
Volume | 22 |
Issue number | 4 |
DOIs | |
State | Published - Jul 2004 |
Keywords
- Biomarkers
- Cancer detection
- Prostate cancer
- Proteomics
- SELDI
ASJC Scopus subject areas
- Oncology
- Urology