Germline BRCA mutations are associated with higher risk of nodal involvement, distant metastasis, and poor survival outcomes in prostate cancer

Elena Castro, Chee Goh, David Olmos, Ed Saunders, Daniel Leongamornlert, Malgorzata Tymrakiewicz, Nadiya Mahmud, Tokhir Dadaev, Koveela Govindasami, Michelle Guy, Emma Sawyer, Rosemary Wilkinson, Audrey Ardern-Jones, Steve Ellis, Debra Frost, Susan Peock, D Gareth Evans, Marc Tischkowitz, Trevor Cole, Rosemarie DavidsonDiana Eccles, Carole Brewer, Fiona Douglas, Mary E Porteous, Alan Donaldson, Huw Dorkins, Louise Izatt, Jackie Cook, Shirley Hodgson, M John Kennedy, Lucy E Side, Jacqueline Eason, Alex Murray, Antonis C Antoniou, Douglas F Easton, Zsofia Kote-Jarai, Rosalind Eeles

Research output: Contribution to journalArticlepeer-review

628 Citations (Scopus)

Abstract

PURPOSE: To analyze the baseline clinicopathologic characteristics of prostate tumors with germline BRCA1 and BRCA2 (BRCA1/2) mutations and the prognostic value of those mutations on prostate cancer (PCa) outcomes.

PATIENTS AND METHODS: This study analyzed the tumor features and outcomes of 2,019 patients with PCa (18 BRCA1 carriers, 61 BRCA2 carriers, and 1,940 noncarriers). The Kaplan-Meier method and Cox regression analysis were used to evaluate the associations between BRCA1/2 status and other PCa prognostic factors with overall survival (OS), cause-specific OS (CSS), CSS in localized PCa (CSS_M0), metastasis-free survival (MFS), and CSS from metastasis (CSS_M1).

RESULTS: PCa with germline BRCA1/2 mutations were more frequently associated with Gleason ≥ 8 (P = .00003), T3/T4 stage (P = .003), nodal involvement (P = .00005), and metastases at diagnosis (P = .005) than PCa in noncarriers. CSS was significantly longer in noncarriers than in carriers (15.7 v 8.6 years, multivariable analyses [MVA] P = .015; hazard ratio [HR] = 1.8). For localized PCa, 5-year CSS and MFS were significantly higher in noncarriers (96% v 82%; MVA P = .01; HR = 2.6%; and 93% v 77%; MVA P = .009; HR = 2.7, respectively). Subgroup analyses confirmed the poor outcomes in BRCA2 patients, whereas the role of BRCA1 was not well defined due to the limited size and follow-up in this subgroup.

CONCLUSION: Our results confirm that BRCA1/2 mutations confer a more aggressive PCa phenotype with a higher probability of nodal involvement and distant metastasis. BRCA mutations are associated with poor survival outcomes and this should be considered for tailoring clinical management of these patients.

Original languageEnglish
Pages (from-to)1748-57
Number of pages10
JournalJournal of clinical oncology : official journal of the American Society of Clinical Oncology
Volume31
Issue number14
DOIs
Publication statusPublished - 10 May 2013

Keywords

  • Adult
  • Aged
  • Aged, 80 and over
  • Antineoplastic Agents, Hormonal/therapeutic use
  • Antineoplastic Combined Chemotherapy Protocols/therapeutic use
  • BRCA1 Protein/genetics
  • BRCA2 Protein/genetics
  • Brachytherapy
  • Follow-Up Studies
  • Genetic Predisposition to Disease
  • Germ-Line Mutation
  • Heterozygote
  • Humans
  • Kaplan-Meier Estimate
  • Lymph Nodes/pathology
  • Lymphatic Metastasis
  • Male
  • Middle Aged
  • Neoplasm Grading
  • Neoplasm Staging
  • Nomograms
  • Palliative Care/methods
  • Phenotype
  • Predictive Value of Tests
  • Prognosis
  • Proportional Hazards Models
  • Prostatectomy
  • Prostatic Neoplasms/genetics
  • Radiotherapy, Adjuvant
  • Retrospective Studies
  • Risk Assessment
  • Risk Factors

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