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Cited 47 time in webofscience Cited 53 time in scopus
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Adding Ovarian Suppression to Tamoxifen for Premenopausal Breast Cancer: A Randomized Phase III Trial

Authors
Kim, Hyun-AhLee, Jong WonNam, Seok JinPark, Byeong-WooIm, Seock-AhLee, Eun SookJung, Yong SikYoon, Jung HanKang, Sung SooLee, Soo-JungPark, Kyong HwaJeong, JoonCho, Se-HeonKim, Sung YongKim, Lee SuMoon, Byung-InLee, Min HyukKim, Tae HyunPark, ChanheunJung, Sung HooGwak, GeumheeKim, JeryongKang, Sun HeeJin, Young WooKim, Hee JeongHan, Se-HwanHan, WonshikHur, Min HeeNoh, Woo Chulthe Korean Breast Cancer Study Group
Issue Date
Feb-2020
Publisher
American Society of Clinical Oncology
Citation
Journal of Clinical Oncology, v.38, no.5, pp 434 - 443
Pages
10
Indexed
SCIE
SCOPUS
Journal Title
Journal of Clinical Oncology
Volume
38
Number
5
Start Page
434
End Page
443
URI
https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/1019
DOI
10.1200/JCO.19.00126
ISSN
0732-183X
1527-7755
Abstract
PURPOSE The addition of ovarian function suppression (OFS) for 5 years to tamoxifen (TAM) for treatment of premenopausal patients with breast cancer after completion of chemotherapy has beneficial effects on disease-free survival (DFS). This study evaluated the efficacy of adding 2 years of OFS to TAM in patients with hormone receptor-positive breast cancer who remain in a premenopausal state or resume ovarian function after chemotherapy. PATIENTS AND METHODS We enrolled 1,483 premenopausal women (age <= 45 years) with estrogen receptor-positive breast cancer treated with definitive surgery after completing adjuvant or neoadjuvant chemotherapy. Ovarian function was assessed every 6 months for 2 years since enrollment on the basis of follicular-stimulating hormone levels and vaginal bleeding history. If ovarian function was confirmed to be premenopausal at each visit, the patient was randomly assigned to complete 5 years of TAM alone (TAM-only) group or 5 years of TAM with OFS for 2 years that involved monthly goserelin administration (TAM + OFS) group. DFS was defined from the time of enrollment to the time of the first event. RESULTS A total of 1,293 patients were randomly assigned, and 1,282 patients were eligible for analysis. The estimated 5-year DFS rate was 91.1% in the TAM + OFS group and 87.5% in the TAM-only group (hazard ratio, 0.69; 95% CI, 0.48 to 0.97; P = .033). The estimated 5-year overall survival rate was 99.4% in the TAM + OFS group and 97.8% in the TAM-only group (hazard ratio, 0.31; 95% CI, 0.10 to 0.94; P = .029). CONCLUSION The addition of 2 years of OFS to TAM significantly improved DFS compared with TAM alone in patients who remained premenopausal or resumed ovarian function after chemotherapy. (C) 2019 by American Society of Clinical Oncology
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Park, Kyong Hwa
Anam Hospital (Department of Medical Oncology and Hematology, Anam Hospital)
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