Research Achievements

Scientific Articles

Survival of HER2-positive primary breast cancer patients treated by neoadjuvant chemotherapy plus trastuzumab: a multicenter retrospective observational study (JBCRG-C03 study)


M. Takada, H. Ishiguro, S. Nagai, S. Ohtani, H. Kawabata, Y. Yanagita, Y. Hozumi, C. Shimizu, S. Takao, N. Sato, Y. Kosaka, Y. Sagara, H. Iwata, S. Ohno, K. Kuroi, N. Masuda, H. Yamashiro, M. Sugimoto, M. Kondo, Y. Naito,H. Sasano, T. Inamoto, S. Morita, & M. Toi on behalf of the JBCRG-C03 Collaborative Group


Breast Cancer Research and Treatment 2014 May;145(1):143-53. doi: 10.1007/s10549-014-2907-9.

An Overview of the Japan Breast Cancer Research Group (JBCRG) activities


Shinji Ohno, Katsumasa Kuroi and Masakazu Toi


Breast Cancer. 2013 Oct;20(4):291-5. doi: 10.1007/s12282-012-0420-8.

Interobserver concordance of Ki67 labeling index in breast cancer: Japan Breast Cancer Research Group Ki67 Ring Study


Yoshiki Mikami, Takayuki Ueno, Kenichi Yoshimura, Hitoshi Tsuda, Masafumi Kurosumi, Shinobu Masuda, Rie Horii, Masakazu Toi and Hironobu Sasano


Cancer Science November 2013 vol. 104 no. 11 1539–1543. doi: 10.1111/cas.12245.

Correlation between docetaxel-induced skin toxicity and the use of steroids and H2 blockers: A multi-institution survey.


Kosuke Kawaguchi, Hiroshi Ishiguro, Satoshi Morita, Seigo Nakamura, Shinji Ohno, Norikazu Masuda, Hiroji Iwata, Kenjiro Aogi, Katsumasa Kuroi, Masakazu Toi; Japan Breast Cancer Research Group (JBCRG)


Breast Cancer Research and Treatment, 130(2) : 627-634, 2011. doi: 10.1007/s10549-011-1641-9.

Economic evaluation of the 21-gene signature (Oncotype DX(®)) in lymph node-negative/positive, hormone receptor-positive early-stage breast cancer based on Japanese validation study (JBCRG-TR03).


Kondo M, Hoshi SL, Yamanaka T, Ishiguro H, Toi M.


Breast Cancer Res Treat. 2011 Jun;127(3):739-49. doi: 10.1007/s10549-010-1243-y.

Japan Breast Cancer Research Group (JBCRG)


Kuroi K, Kashiwa K, Toi M, Nakamura S, Iwata H, Ohno S, Masuda N, Aogi K, Sato N, Sasano H; Japan Breast Cancer Research Group (JBCRG)


Clinical Oncology 2010 Oct; 6(4): 360-368

Clinical Significance of the 21-Gene Signature (Oncotype DX) in Hormone Receptor-Positive Early Stage Primary Breast Cancer in the Japanese Population


Toi M, Iwata H, Yamanaka T, Masuda N, Ohno S, Nakamura S, Nakayama T, Kashiwaba M, Kamigaki S, Kuroi K; and the Japan Breast Cancer Research Group-Translational Research


Cancer 2010, July 1: 3113-3118. doi: 10.1002/cncr.25206.

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Scientific Articles
by Voluntary Organization JBCRG