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Gan To Kagaku Ryoho. 2006 May;33(5):567-83.

[Trend to adjuvant systemic treatment regimens for patients with early breast cancer--meeting highlights of St. Gallen Conference 2005].

[Article in Japanese]

Author information

1
Osaka University.

Abstract

The 9th International Expert Consensus Meeting on the Primary Therapy of Early Breast Cancer 2005, with 4166 participants from 78 countries, was held in January 2005 in St. Gallen, Switzerland. Its consensus recommendations were summarized in the Annals of Oncology (16:1569-1583, 2005), published on Sept. 7 that year. The Meeting made a fundamental change in the algorithm for selection of adjuvant systemic therapy for early breast cancer. Rather than the earlier approach commencing with risk assessment, the Panel affirmed that the first consideration was endocrine responsiveness. Three categories were acknowledged:endocrine responsive, endocrine non-responsive and tumors of uncertain endocrine responsiveness. The three categories were further divided according to menopausal status. Only then did the Panel divide patients into low-, intermediate-and high risk categories. It agreed that axillary lymph node involvement did not automatically define high risk. Intermediate risk included both node-negative disease (if some features of the primary tumor indicated elevated risk) and patients with one to three involved lymph nodes without additional high-risk features such as HER 2/neu gene over expression. The Panel recommended that patients be offered chemotherapy for endocrine non-responsive disease; endocrine therapy as the primary therapy for endocrine responsive disease, adding chemotherapy for some intermediate-and all high-risk groups in this category; and both chemotherapy and endocrine therapy for all patients in the uncertain endocrine response category except those in the low-risk group.

PMID:
16685151
[Indexed for MEDLINE]

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