Our Vision

Our Vision

Our vision is a world without breast cancer.
Working Toward a Cure for All Cases of Breast Cancer

For the benefit of all patients and their families whose lives have been or will be affected by breast cancer, the JBCRG is working to improve breast cancer treatment and outcomes. Our ultimate aim is a world in which all cases of breast cancer are curable and no more lives are lost to this disease.

Our Principles

  • We conduct research in a way that ensures the scientific validity of our findings.
  • The human rights of patients with breast cancer are our top priority. Our research is conducted in accordance with national and international ethical standards.
  • We are committed to transparency regarding the funding of our research.


がん研有明病院 乳腺センター 大野 真司

Physicians strive to provide the best medical care for their patients. However, the accumulation of clinical experience is, on its own, insufficient to realize advances in medical care for future patients. Progress in breast cancer treatment would not be possible without high-quality basic and clinical research. Since its establishment, the JBCRG has been working to improve breast cancer treatment in Japan and worldwide. We have completed dozens of clinical studies and our findings have been well received. We are also helping to train the breast cancer specialists of the future and to disseminate the findings of clinical research.

Collaboration between institutions and research organizations within Japan and internationally maximizes the likelihood of making advances in breast cancer research. The JBCRG is a member of the Breast International Group, one of the world's largest organizations dedicated to improving breast cancer treatment. The Breast International Group was founded in 1996 and comprises 59 clinical research groups in 55 countries; we play a central role in the work of the 11 groups in Asian countries.
The JBCRG is working to determine the best current treatments for breast cancer and to develop new therapies for the disease. Collaboration with our global research partners is crucial to achieving these aims in the shortest timescale. We greatly appreciate your continuous support and cooperation.

Representative Director
Breast Oncology Center
Cancer Institute Hospital of JFCR
Shinji Ohno

Organizational chart

Organization chart Organization chart

Officers list


Shinji Ohno

Breast Oncology Center, Cancer Institute Hospital of JFCR


Reiki Nishimura

Kumamoto Shinto General Hospital

Executive Director

Hiroji Iwata

Breast Oncology, Aichi Cancer Center Hospital

Katsumasa Kuroi

Ebara Hospital

Shigehira Saji

Medical Oncology, Fukushima Medical University

Masakazu Toi

Surgery (Breast Surgery), Graduate School of Medicine and Faculty of Medicine, Kyoto University

Norikazu Masuda

Surgery, Breast Oncology, National Hospital Organization Osaka National Hospital


Kenjiro Aogi

Breast and Endocrine Surgery, National Hospital Organization Shikoku Cancer Center

Hiroshi Ishiguro

Department of Medicine, Clinical Oncology, International University of Health and Welfare, School of Medicine

Takayuki Ueno

Breast Surgical Oncology, Breast Oncology Center, Cancer Institute Hospital of JFCR

Shoichiro Ohtani

Division of Breast Surgery, Hiroshima City Hiroshima Citizens Hospital

Hidetaka Kawabata

Breast and Endocrine Surgery, Toranomon Hospital

Yasuaki Sagara

Hakuaikai Sagara Hospital

Hironobu Sasano

Department of Anatomic Pathology, Tohoku University Graduate School of Medicine

Chikako Shimizu

Department of Breast Medical Oncology, National Center for Global Health and Medicine

Koichiro Tsugawa

Breast and Endocrine Surgery, Surgery Department, St Marianna University School of Medicine Hospital

Seigo Nakamura

Breast Surgical Oncology, Showa University School of Medicine

Takahiro Nakayama

Osaka International Cancer Institute

Naoki Niikura

Department of Breast and Endocrine Surgery, Tokai University Hospital

Toshinari Yamasita

Department of Breast and Endocrine Surgery, Kanagawa Cancer Center

Hiroko Yamashita

Breast Surgery, Hokkaido University Hospital

Yutaka Yamamoto

Breast and Endocrine Surgery, Graduate School of Medical Sciences Kumamoto University