Title: Assessment of estrogenic recruitment before chemotherapy in advanced breast cancer: preliminary results of a double-blind randomized study of the EORTC Breast Cancer Cooperative Group
Authors: Paridaens, Robert ×
Heuson, J.C.
Julien, J.P.
Klijn, J.G.M.
Sylvester, R.J. #
Issue Date: 1990
Publisher: Pergamon Press
Series Title: Journal of Steroid Biochemistry and Molecular Biology vol:37 pages:1109-1113
Abstract: We investigated whether estrogenic recruitment could enhance the antitumor effect of chemotherapy in 165 patients with advanced breast cancer, presumably sensitive to hormonal treatments (ER + and/or PgR + lesions). The therapeutic regimen consisted of: (a) estrogenic suppression by aminoglutethimide 1 g/day + hydrocortisone 40 mg/day; surgical castration in premenopausal patients only; (b) FAC (5FU 500 mg/m2; ADM 50 mg/m2; CPA 500 mg/m2) for 3 weeks; (c) following randomization, exactly 24 h prior to chemotherapy, patients had to take 1 tablet of either placebo (PL) or 50 microgram ethinylestradiol (EE2). Tolerance, responses, time to progression and median survival were identical in both groups. Thus, EE2 before chemotherapy did not contribute to the efficacy of this particular therapeutic regimen, which yielded an overall response rate of 64%. We conclude that the validity of the hormonal recruitment concept has not yet been established in clinical practice, so that this approach remains experimental.
ISSN: 0960-0760
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Experimental Oncology
× corresponding author
# (joint) last author

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