Optimising adjuvant endocrine treatment of breast cancer with aromatase inhibitors
Author: Fentiman, I. S.1
Source: International Journal of Clinical Practice, Volume 60, Number 6, June 2006 , pp. 689-693(5)
Publisher: Blackwell Publishing
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Abstract:
Summary There is mounting evidence that aromatase inhibitors (AIs) are superior to tamoxifen as adjuvant treatment for postmenopausal women with oestrogen receptor positive breast cancer. Nevertheless, tamoxifen still remains a useful and relatively nontoxic treatment, and further work is necessary to determine which patients need an AI. In terms of cost-effectiveness, letrozole has been estimated to be superior to tamoxifen. Anastrozole, letrozole and exemestane have not been compared directly in an adjuvant setting but letrozole proved superior to anastrozole in patients with advanced breast cancer. Although tumour receptor phenotype may be useful in selection for tamoxifen or AI, the evidence is mixed. Optimal sequencing and duration of treatment have yet to be determined. If nationally funded and organised trials could be instigated, these would give timely and reliable data, so that adjuvant endocrine treatment of breast cancer could be tailored to needs of the individual patient.Keywords: Breast cancer; aromatase inhibitors; adjuvant therapy; oestrogen receptors; HER-2; tamoxifen
Document Type: Research article
DOI: 10.1111/j.1368-5031.2006.00921.x
Affiliations: 1: GKT School of Medicine, Guy's Hospital, London, UK
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