JaLCDOI 10.18926/AMO/56172
フルテキストURL 72_4_369.pdf
著者 Iwamoto, Takayuki| Taira, Naruto| Fujisawa, Tomomi| Araki, Kazuhiro| Sakamaki, Kentaro| Sangai, Takafumi| Kikawa, Yuichiro| Shien, Tadahiko| Takao, Shintaro| Sato, Masako| Goto, Yoshinari| Yoshida, Takashi| Takahashi, Masato| Aihara, Tomohiko| Mukai, Hirofumi|
抄録 The Hormonal therapy resistant estrogen-receptor positive metastatic breast cancer cohort (HORSE-BC) study is a multicenter observational study evaluating the efficacy and safety of secondary endocrine therapy (ET) for postmenopausal cases of metastatic breast cancer (MBC) with poor response to primary ET. In this initial report we analyze the HORSE-BC baseline data to clarify the current status of treatment selection for MBC in Japan. Baseline data for the 50 patients enrolled in HORSE-BC were analyzed, including patient characteristics, types of secondary ET, and reasons for selecting secondary ET. Postoperative recurrence was detected in 84% of patients (42/50) and de novo stage IV breast cancer in 16% (8/50). Forty-one patients (41/50; 82%) received fulvestrant, 5 patients (10%) received selective estrogen receptor modulators (SERMs), 3 patients (6%) received ET plus a mammalian target of rapamycin (mTOR) inhibitor, and 1 patient received an aromatase inhibitor (AI) as the secondary ET. Forty-five patients selected their secondary ET based on its therapeutic effect, while 14 patients selected it based on side effects. Most patients with progression after primary ET selected fulvestrant as the secondary ET based on its therapeutic and side effects. We await the final results from the HORSE-BC study.
キーワード breast cancer secondary endocrine therapy low sensitivity primary endocrine therapy fulvestrant
Amo Type Original Article
発行日 2018-08
出版物タイトル Acta Medica Okayama
72巻
4号
出版者 Okayama University Medical School
開始ページ 369
終了ページ 374
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2018 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 30140084
JaLCDOI 10.18926/AMO/55854
フルテキストURL 72_2_137.pdf
著者 Takahashi, Yuko| Shien, Tadahiko| Sakamoto, Ai| Tsuyumu, Yuko| Yoshioka, Ryo| Uno, Maya| Hatono, Minami| Kochi, Mariko| Kawada, Kengo| Tsukioki, Takahiro| Iwamoto, Takayuki| Ikeda, Hirokuni| Taira, Naruto| Matsuoka, Junji| Nakatsuka, Mikiya| Doihara, Hiroyoshi|
抄録 Adverse effects on fertility are a significant problem for premenopausal breast cancer patients. Since April 2009, we have been referring young patients for fertility counseling provided by a multidisciplinary team. Here we evaluated the efficacy and safety of our current fertility preservation approach. We retrospectively analyzed the cases of 277 patients < 45 years old at diagnosis, which was made between 2009 and 2016. Seventy-two (26%) patients received fertility counseling. Seventeen (6%) of the 277 patients decided to preserve their fertility before starting adjuvant systemic therapy. Six (35%) patients underwent oocyte cryopreservation, and 11 (65%) married patients opted for embryo cryopreservation. There were no pregnancies among the patients undergoing oocyte cryopreservation, whereas 3 (27%) of the patients who opted for embryo cryopreservation became pregnant. Two (12%) patients stopped endocrine therapy after 2 years in an effort to become pregnant, but their breast cancers recurred. Though the problem of fertility loss for breast cancer patients is important and we should assess the infertility risk for all patients, we should also consider the prognosis. In June 2016, we launched a prospective multicenter cohort study to evaluate the efficacy and safety of fertility preservation in greater detail.
キーワード fertility preservation multidisciplinary breast cancer young patients
Amo Type Original Article
発行日 2018-04
出版物タイトル Acta Medica Okayama
72巻
2号
出版者 Okayama University Medical School
開始ページ 137
終了ページ 142
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2018 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 29674762