4.3 Article

Personalizing Localized Prostate Cancer: Validation of a Combined Clinical Cell-cycle Risk (CCR) Score Threshold for Prognosticating Benefit From Multimodality Therapy

期刊

CLINICAL GENITOURINARY CANCER
卷 19, 期 4, 页码 296-+

出版社

CIG MEDIA GROUP, LP
DOI: 10.1016/j.clgc.2021.01.003

关键词

ADT with radiation; Disease progression; Genomic classifier; Metastasis; Multimodality therapy

资金

  1. Myriad Genetics, Inc
  2. Huntsman Cancer Foundation
  3. National Cancer Institute of the National Institutes of Health [P30CA042014]

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The study evaluated a score combining a genomic expression classifier and clinical information to predict progression to metastatic disease in men with prostate cancer. It found that some patients could safely forgo multimodal therapy, and validated the effectiveness of the combined clinical cell-cycle risk score in assessing disease progression risk in patients.
Using a retrospective, multi-institutional cohort of men with prostate cancer (N [ 718), this study evaluated a score that combines a genome expression classifier and clinical information to prognosticate progression to metastatic disease in various treatment contexts. A score threshold identified men with intermediate-and high-risk prostate cancer who could safely forgo multimodal therapy. Introduction: The combined clinical cell-cycle risk (CCR) score is a validated model that combines the cell-cycle progression (CCP) score with the University of California San Francisco Cancer of the Prostate Risk Assessment (CAPRA) score. This score determines the risk of progressive disease for men with prostate cancer. Here, we further validate the prognostic ability of the CCR score and evaluate its ability to help determine which patients may safely forgo multimodality therapy. Patients and Methods: We evaluated the CCR and a CCR-based multimodality threshold (2.112) in a retrospective, multi-institutional cohort of men with National Comprehensive Cancer Network intermediate-or high-risk localized disease (N 1/4 718). These men received single or multimodality therapy (androgen deprivation with radiation [RT], or surgery with adjuvant RT or hormones). Results: CCR score prognosticated metastasis for single-modality therapy, as a continuous variable (hazard ratio, 3.97; 95% confidence interval [CI], 2.61-6.06) and when dichotomized at the threshold (hazard ratio, 15.90; 95% CI, 5.43-46.52). The 10 year Kaplan-Meier risk for those receiving single-modality (RT or surgical) therapy with CCR scores below and above the threshold for single-modality treatment was 4.3% (95% CI, 1.0%-17.1%) and 20.4% (95% CI, 13.2%30.7%), respectively. Using the threshold, 27% of men with newly diagnosed high-risk and 73% with unfavorable intermediate-risk disease could avoid multimodality therapy. Conclusions: Patients with CCR scores below the multimodality threshold (2.112) may safely forgo multimodality therapy. The CCR score can be used as a decision aid to counsel men whether or not single-modality therapy would be sufficient for their intermediate-or high-risk prostate cancer. (C) 2021 The Author(s). Published by Elsevier Inc.

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