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Breast Cancer Research and Treatment

, Volume 145, Issue 2, pp 503–511 | Cite as

Prognostic factors for survival in metastatic breast cancer by hormone receptor status

  • A. B. G. KwastEmail author
  • A. C. Voogd
  • M. B. E. Menke-Pluijmers
  • S. C. Linn
  • G. S. Sonke
  • L. A. Kiemeney
  • S. Siesling
Epidemiology

Abstract

Hormone receptor (HR) status is an important prognostic factor for patients with metastatic breast cancer (MBC) and is also correlated with other prognostic factors, such as initial lymph node status, HER2-Neu status and age. The prognostic value of these other factors, however, is unknown when stratified by HR positive versus HR negative patients. The aim of this study was to evaluate prognostic factors for MBC survival in relation to HR status. Dutch women diagnosed with breast cancer in 2003–2006 treated with curative intent who developed MBC within 5 years of follow-up were selected from the Netherlands cancer registry (N = 2,001). Independent prognostic factors for survival after metastatic occurrence were determined by multivariable Cox survival analyses stratified by HR status. Interactions between HR status and prognostic factors were determined. Median survival for MBC patients with HR negative (HR−) tumours was 8 months, compared to 19 months for HR positive (HR+) patients. The prognostic value of lymph node status, HER2-Neu status, adjuvant endocrine treatment and first-line palliative chemotherapy was dependent on HR status. Initial lymph node status was independently associated with survival in HR− patients, but not in HR+ patients. HER2-Neu positive status was associated with better survival in both HR+ and HR− patients, although the association was stronger in HR− patients. Similarly, patients treated with first-line palliative chemotherapy fared better, especially HR− patients. HR+ patients had worse survival if they had received adjuvant endocrine treatment. This study shows that the prognostic value of various factors depends on HR status in MBC. This information may help physicians to determine individual prognostic profiles and therapeutic strategies for MBC patients.

Keywords

Metastatic breast cancer Prognostic factors Hormone receptor status Survival 

Notes

Acknowledgement

We would like to thank the registrars of the Netherlands Cancer Registry for their effort in data gathering.

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • A. B. G. Kwast
    • 1
    • 2
    Email author
  • A. C. Voogd
    • 1
    • 3
  • M. B. E. Menke-Pluijmers
    • 4
  • S. C. Linn
    • 5
  • G. S. Sonke
    • 1
    • 5
  • L. A. Kiemeney
    • 2
    • 6
  • S. Siesling
    • 1
    • 7
  1. 1.Department of ResearchComprehensive Cancer Centre the NetherlandsUtrechtThe Netherlands
  2. 2.Department for Health EvidenceRadboud University Medical CentreNijmegenThe Netherlands
  3. 3.Department of EpidemiologyMaastricht University Medical CentreMaastrichtThe Netherlands
  4. 4.Department of SurgeryAlbert Schweitzer HospitalDordrechtThe Netherlands
  5. 5.Department of Medical OncologyNetherlands Cancer InstituteAmsterdamThe Netherlands
  6. 6.Department of UrologyRadboud University Medical CentreNijmegenThe Netherlands
  7. 7.Department of Health Technology and Services ResearchMIRA Institute of Biomedical Science and Technical Medicine, Twente UniversityEnschedeThe Netherlands

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