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Fulvestrant plus goserelin versus anastrozole plus goserelin versus goserelin alone for hormone receptor-positive, HER2-negative tamoxifen-pretreated premenopausal women with recurrent or metastatic breast cancer (KCSG BR10-04): a multicentre, open-label, three-arm, randomised phase II trial (FLAG study)

Cited 9 time in Web of Science Cited 9 time in Scopus
Authors

Kim, Ji-Yeon; Im, Seock-Ah; Jung, Kyung Hae; Ro, Jungsil; Sohn, Joohyuk; Kim, Jee Hyun; Park, Yeon Hee; Kim, Tae-Yong; Kim, Sung-Bae; Lee, Keun Seok; Kim, Gun Min; Kim, Se Hyun; Kim, Seonwoo; Ahn, Jin Seok; Lee, Kyung-Hun; Ahn, Jin-Hee; Park, In Hae; Im, Young-Hyuck

Issue Date
2018-11
Publisher
Pergamon Press Ltd.
Citation
European Journal of Cancer, Vol.103, pp.127-136
Abstract
Background: We investigated the efficacy and safety of fulvestrant plus goserelin (F + G) versus anastrozole plus goserelin (A + G) in comparison with goserelin (G) alone in premenopausal women with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-), tamoxifen-pretreated metastatic breast cancer (MBC). Patients and methods: In this multicentre, open-label, randomised phase II study, premenopausal women aged >= 18 years with HR+, HER2-, tamoxifen-pretreated MBC were randomly assigned (1: 1: 1) to F + G, A + G or G alone. The primary end-point was time to progression (TTP). Secondary end-points included overall survival, overall response rate, clinical benefit rate and toxicity. Results: Of 138 eligible patients, 44 were randomly assigned to receive F + G, 47 to A + G and 47 to G alone. The median follow-up duration was 32.2 months (interquartile range: 23.69-40.86) and the median age was 43.0 years (range 23.0-55.0). The median TTP was 16.3 months (95% confidence interval [CI] 7.5-25.1) for F + G, 14.5 months (95% CI 11.0-18.0) for A + G and 13.5 months (95% CI 10.3-16.8) for G alone. Compared with G alone, the hazard ratios were 0.608 for F + G (95% CI, 0.370-0.998; p = 0.049) and 0.982 for A + G (95% CI, 0.624-1.546; p = 0.937). In terms of visceral metastasis, a stratification factor, there were no TTP differences according to treatment arm. Grade III or IV toxicities were rarely observed. Of the common adverse events, grade I arthralgia and joint stiffness were more frequently observed in the F + G than in the A + G or G-alone groups (p < 0.05, respectively). Conclusions: F + G provides a promising new option for the treatment of premenopausal women with HR+, HER2-, tamoxifen-pretreated MBC. Trial registration: ClinicalTrials.gov number NCT01266213 and Korean Cancer Study Group (KCSG) Breast cancer protocol number BR10-04. (C) 2018 Elsevier Ltd. All rights reserved.
ISSN
0959-8049
URI
https://hdl.handle.net/10371/177315
DOI
https://doi.org/10.1016/j.ejca.2018.08.004
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  • Department of Medicine
Research Area Clinical Medicine

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