Impact of PCA3 on the number of repeat prostate biopsies and sensitivity to detect high-grade cancer in the placebo cohort of the REDUCE study.
2012
111 Background: 10-35% of men with a negative initial biopsy (Bx) have prostate cancer (PCa) found on repeat Bx (rBx). Fear of missing significant cancer frequently results in, often negative, rBx. As Bx is associated with pain, anxiety and complications, a better individualization of the decision for rBx to reduce the number of rBx and overdiagnosis of indolent PCa is needed. Recently, we used the RAND Appropriateness Method (RAM) to develop a model for rBx patient selection, based on expert recommendations and including the PROGENSA PCA3 Assay (Tombal B, et al. World J Urol 2011;doi:10.1007/s00345-011-0721-0). PCA3 has been shown to predict the probability that a rBx will be positive and may be indicative of PCa significance (Aubin SMJ, et al. J Urol 2010;184:1947-52). In the current analysis, we tested the expert recommendations model on the placebo cohort of the REDUCE study. Methods: The RAM expert recommendations were applied to the placebo cohort of the REDUCE study in which 1073 men with a baselin...
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