Abstract
Contrary to the situation in early breast cancer, little is known about the prognostic relevance of the hormone receptor (HR) and human epidermal growth factor receptor 2 (HER2) in metastatic breast cancer. The objectives of this study were to present survival estimates and to determine the prognostic impact of breast cancer subtypes based on HR and HER2 status in a recent cohort of metastatic breast cancer patients, which is representative of current clinical practice. Patients diagnosed with metastatic breast cancer between 2007 and 2009 were included. Information regarding patient and tumor characteristics and treatment was collected. Patients were categorized in four subtypes based on the HR and HER2 status of the primary tumor: HR positive (+)/HER2 negative (−), HR+/HER2+, HR−/HER2+ and triple negative (TN). Survival was estimated using the Kaplan–Meier method. Cox proportional hazards model was used to determine the prognostic impact of breast cancer subtype, adjusted for possible confounders. Median follow-up was 21.8 months for the 815 metastatic breast cancer patients included; 66 % of patients had the HR+/HER2− subtype, 8 % the HR−/HER2+ subtype, 15 % the TN subtype and 11 % the HR+/HER2+ subtype. The longest survival was observed for the HR+/HER2+ subtype (median 34.4 months), compared to 24.8 months for the HR+/HER2− subtype, 19.8 months for the HR−/HER2+ subtype and 8.8 months for the TN subtype (P < 0.0001). In the multivariate analysis, subtype was an independent prognostic factor, as were initial site of metastases and metastatic-free interval. The HR+/HER2+ subtype was associated with the longest survival after diagnosis of distant metastases.
Similar content being viewed by others
References
Goldhirsch A, Wood WC, Gelber RD et al (2007) Progress and promise: highlights of the international expert consensus on the primary therapy of early breast cancer 2007. Ann Oncol 18:1133–1144
Coates AS, Colleoni M, Goldhirsch A (2012) Is adjuvant chemotherapy useful for women with luminal a breast cancer? J Clin Oncol 30:1260–1263
Goldhirsch A, Wood WC, Coates AS et al (2011) Strategies for subtypes–dealing with the diversity of breast cancer: highlights of the St. Gallen International expert consensus on the primary therapy of early breast cancer 2011. Ann Oncol 22:1736–1747
Yamamoto N, Watanabe T, Katsumata N et al (1998) Construction and validation of a practical prognostic index for patients with metastatic breast cancer. J Clin Oncol 16:2401–2408
Insa A, Lluch A, Prosper F et al (1999) Prognostic factors predicting survival from first recurrence in patients with metastatic breast cancer: analysis of 439 patients. Breast Cancer Res Treat 56:67–78
Chang J, Clark GM, Allred DC et al (2003) Survival of patients with metastatic breast carcinoma: importance of prognostic markers of the primary tumor. Cancer 97:545–553
Jung SY, Rosenzweig M, Sereika SM et al (2012) Factors associated with mortality after breast cancer metastasis. Cancer Causes Control 23:103–112
Largillier R, Ferrero JM, Doyen J et al (2008) Prognostic factors in 1,038 women with metastatic breast cancer. Ann Oncol 19:2012–2019
Beslija S, Bonneterre J, Burstein HJ et al (2009) Third consensus on medical treatment of metastatic breast cancer. Ann Oncol 20:1771–1785
Kennecke H, Yerushalmi R, Woods R et al (2010) Metastatic behavior of breast cancer subtypes. J Clin Oncol 28:3271–3277
Dawood S, Broglio K, Buzdar AU et al (2010) Prognosis of women with metastatic breast cancer by HER2 status and trastuzumab treatment: an institutional-based review. J Clin Oncol 28:92–98
Greene FL, Page DL, Fleming ID et al (2002) AJCC cancer staging manual. Springer, New York
Elston CW, Ellis IO (1991) Pathological prognostic factors in breast cancer. I. The value of histological grade in breast cancer: experience from a large study with long-term follow-up. Histopathology 19:403–410
Planchat E, Durando X, Abrial C et al (2011) Prognostic value of initial tumor parameters after metastatic relapse. Cancer Invest 29:635–643
Puente J, Lopez-Tarruella S, Ruiz A et al (2010) Practical prognostic index for patients with metastatic recurrent breast cancer: retrospective analysis of 2,322 patients from the GEICAM Spanish El Alamo register. Breast Cancer Res Treat 122:591–600
Chia S (2012) Testing for discordance at metastatic relapse: does it matter? J Clin Oncol 30:575–576
Hoefnagel LD, van de Vijver MJ, van Slooten HJ et al (2010) Receptor conversion in distant breast cancer metastases. Breast Cancer Res 12:R75
Duchnowska R, Dziadziuszko R, Trojanowski T et al (2012) Conversion of epidermal growth factor receptor 2 and hormone receptor expression in breast cancer metastases to the brain. Breast Cancer Res 14:R119
Niikura N, Liu J, Hayashi N et al (2010) Loss of human epidermal growth factor receptor 2 (HER2) expression in metastatic sites of HER2-overexpressing primary breast tumors. J Clin Oncol 30:593–599
Amir E, Miller N, Geddie W et al (2012) Prospective study evaluating the impact of tissue confirmation of metastatic disease in patients with breast cancer. J Clin Oncol 30:587–592
Amir E, Clemons M, Purdie CA et al (2012) Tissue confirmation of disease recurrence in breast cancer patients: pooled analysis of multi-centre, multi-disciplinary prospective studies. Cancer Treat Rev 38:708–714
Liedtke C, Broglio K, Moulder S et al (2009) Prognostic impact of discordance between triple-receptor measurements in primary and recurrent breast cancer. Ann Oncol 20:1953–1958
Hoefnagel LD, Moelans CB, Meijer SL et al (2012) Prognostic value of estrogen receptor alpha and progesterone receptor conversion in distant breast cancer metastases. Cancer 118:4929–4935
Cardoso F, Costa A, Norton L et al (2012) 1st International consensus guidelines for advanced breast cancer (ABC 1). Breast 21:242–252
Hammond ME, Hayes DF, Dowsett M et al (2010) American society of clinical oncology/college Of American pathologists guideline recommendations for immunohistochemical testing of estrogen and progesterone receptors in breast cancer. J Clin Oncol 28:2784–2795
Sanpaolo P, Barbieri V, Genovesi D (2011) Prognostic value of breast cancer subtypes on breast cancer specific survival, distant metastases and local relapse rates in conservatively managed early stage breast cancer: a retrospective clinical study. Eur J Surg Oncol 37:876–882
Bauer K, Parise C, Caggiano V (2010) Use of ER/PR/HER2 subtypes in conjunction with the 2007 St Gallen consensus statement for early breast cancer. BMC Cancer 10:228–240
Acknowledgments
This work was supported by the Netherlands Organization for Health Research and Development (Grant Number ZonMw: 80-82500-98-8003).
Conflict of interest
The authors declare that they have no conflict of interest.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lobbezoo, D.J.A., van Kampen, R.J.W., Voogd, A.C. et al. Prognosis of metastatic breast cancer subtypes: the hormone receptor/HER2-positive subtype is associated with the most favorable outcome. Breast Cancer Res Treat 141, 507–514 (2013). https://doi.org/10.1007/s10549-013-2711-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10549-013-2711-y