Department of Urology, Friedrich-Alexander University of Erlangen, Maximiliansplatz 1, 91054, Erlangen, Germany.

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Advances in understanding cancer at the molecular level have identified numerous alterations associated with cancer development and progression. The efforts in evaluating these putative biomarkers in clinical studies of patients with cancer are increasing in order to improve the clinical management of the disease. However, despite numerous attempts, the results of such biomarker studies are frequently inconsistent and sometimes even contradictory. Aim of this work is to discuss some of the recognized problems which have impeded our understanding of the role of new markers and prevented the introduction of these markers into patient management.

These Problems include standardization issues, selection of patient cohorts and endpoints and statistical considerations. In order to improve and standardize marker development a stepwise procedure in four phases, analogous to clinical trials is proposed. Furthermore, a common terminology, considerations on the population to study as well as general recommendations for planning and conducting the evaluation of markers will be presented.

The implementation of this discussion may foster the integration of new tools and strategies screening, diagnosis and surveillance of patients with bladder cancer.

Written by
Goebell PJ, Groshen SL, Schmitz-Dräger BJ.

Reference
World J Urol. 2008 Feb;26(1):5-11.
doi:10.1007/s00345-008-0240-9

PubMed Abstract
PMID:18253738

UroToday.com Bladder Cancer Section

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