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Journal of Neuro-Oncology

, Volume 85, Issue 3, pp 311–317 | Cite as

Trastuzumab prolongs overall survival in patients with brain metastases from Her2 positive breast cancer

  • Rupert Bartsch
  • Andrea Rottenfusser
  • Catharina Wenzel
  • Karin Dieckmann
  • Ursula Pluschnig
  • Gabriela Altorjai
  • Margaretha Rudas
  • Robert M. Mader
  • Richard Poetter
  • Christoph C. Zielinski
  • Guenther G. StegerEmail author
Clinical-Patient Studies

Abstract

Background: Brain metastases are frequently encountered in Her2 positive advanced breast cancer. It is still not clear, if trastuzumab treatment should be continued following their diagnosis. In this analysis we evaluated if trastuzumab was able to influence time to in-brain progression (TTP) and overall survival (OS). For this reason, we compared patients who continued on trastuzumab with a historical control group. Patients and Methods: Seventeen Her2 positive patients receiving whole brain radiotherapy for brain metastases and continuing on trastuzumab were identified. As historical control group, thirty-six patients treated before 2002 were identified from a breast cancer database. We performed a multivariate analysis (Cox regression) to explore which factors were potentially able to significantly influence TTP and OS. Results: Median TTP was 6 months, range 1–33+ months. Median OS was 7 months, range 1–38 months. Seventeen patients received trastuzumab after WBRT. Factors associated with prolonged TTP were KPS (p = 0.001), and intensified local treatment (p = 0.004). A trend towards longer TTP was observed in patients treated with trastuzumab (p = 0.068). OS was significantly influenced by KPS (p < 0.001), and continued antibody therapy (p = 0.001). Conclusion: Two parameters were significantly associated with prolonged OS: KPS and trastuzumab. While there was a trend towards prolonged TTP in patients with trastuzumab treatment after WBRT, this did not reach statistical significance. It appears therefore reasonable to suggest continuation of antibody therapy in patients with good performance status despite disease spreading to the brain. Concerning activity of trastuzumab in brain metastases themselves, no final conclusion is possible.

Keywords

Advanced breast cancer Brain metastases Her2 positive disease Trastuzumab Whole brain radiotherapy 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Rupert Bartsch
    • 1
  • Andrea Rottenfusser
    • 2
  • Catharina Wenzel
    • 1
  • Karin Dieckmann
    • 2
  • Ursula Pluschnig
    • 1
  • Gabriela Altorjai
    • 1
  • Margaretha Rudas
    • 3
  • Robert M. Mader
    • 1
  • Richard Poetter
    • 2
  • Christoph C. Zielinski
    • 1
  • Guenther G. Steger
    • 1
    Email author
  1. 1.Department of Medicine 1 and Cancer Centre, Clinical Division of OncologyMedical University of ViennaViennaAustria
  2. 2.Department of RadiotherapyMedical University of ViennaViennaAustria
  3. 3.Department of PathologyMedical University of ViennaViennaAustria

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