Estrogen receptor status and response to chemotherapy in advanced breast cancer
Kiang, D.T.; Frenning, D.H.; Gay, J.; Goldman, A.I.; Kennedy, B.J.
Cancer 46(12 Suppl): 2814-2817
1980
ISSN/ISBN: 0008-543X PMID: 7448726 DOI: 10.1002/1097-0142(19801215)46:12+<2814::aid-cncr2820461415>3.0.co;2-dDocument Number: 451021
Tumor estrogen receptor status in women with advanced breast cancer was correlated with clinical response to cytotoxic chemotherapy in a retrospective study. Following an extramural review of the clinical data of 40 patients, 26 responded to chemotherapy (65%). The response rate in 19 receptor-rich tumors was 89% and in 21 receptor-poor tumors, 43% (P < 0.01). The lowest response rate (14%) was observed in seven postmenopausal patients with receptor-poor tumors. Clinical characteristics of patients and variants in chemotherapy programs failed to explain the favorable response of receptor-rich tumors to cytotoxic chemotherapy.