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We are pleased to announce the Kyoto Breast Cancer Consensus Conference (KBCCC) 2026 International Meeting.

Since 2007, the Kyoto Breast Cancer Consensus Conference (KBCCC) has continuously convened regular domestic meetings, fostering in-depth discussions among experts on key clinical issues in breast cancer care. In 2009, the first international meeting was held, bringing together researchers and clinicians from around the world and establishing KBCCC as an important international forum for building consensus on the diagnosis and treatment of breast cancer.

The KBCCC 2026 International Meeting will be held over two days, on Friday, April 10, and Saturday, April 11, 2026, at the Kyoto International Conference Center, in a hybrid format combining onsite and online participation.

The primary objective of this conference is to build consensus in breast cancer care and thereby contribute to improved quality of life and better treatment outcomes for patients. Beyond what is addressed in clinical guidelines and major international conferences, this meeting aims to focus on real-world clinical decision-making that cannot be resolved by evidence alone. By integrating the collective wisdom of experts, sharing insights openly, and consolidating outcomes as the KBCCC group, we seek to disseminate internationally relevant standards from Kyoto.

The main theme of the meeting is "Precision in Motion: Elevating, Easing, Evolving." The scientific program will include invited lectures, panel discussions, consensus sessions, and poster presentations. Lively discussions are planned on clinically relevant topics such as local therapy, neoadjuvant treatment, escalation strategies for luminal breast cancer, biomarkers, and prevention and risk management.

We hope that this meeting will provide an invaluable opportunity for all professionals involved in breast cancer care to share the latest knowledge and apply it to daily clinical practice. We sincerely look forward to welcoming many participants to Kyoto.

Kyoto Breast Cancer Consensus Conference 2026

Representative Organizer

Norikazu Masuda, Professor, Department of Breast Surgery
Graduate School of Medicine, Kyoto University

Norikazu Masuda

Organizer

Masahiro Takada, Professor, Department of Breast Surgery
Kansai Medical University

Masahiro Takada

Organizer

Kosuke Kawaguchi, Professor, Breast Center
Mie University Hospital

Kosuke Kawaguchi

Overview

Date
10th Fri. and 11th Sat. April 2026, JST
Venue
Kyoto International Conference Center
Event format
Hybrid
Theme
Precision in Motion: Elevating, Easing, Evolving
Topics
• Advances in Local Treatment of Breast Cancer: Optimization and De-escalation
• Advances in Axillary Management of Breast Cancer: Optimization and De-escalation
• Neoadjuvant Therapy and Local Treatment
• Luminal Breast Cancer: Treatment Escalation
• Biomarker
• Reimagining the Future: A New Era of Breast Cancer Screening and Risk Prediction
(subject to change)
Language
English
Special Supporter
Japanese Breast Cancer Society

Program

Scientific Program

Default Venue: ROOM A

Day 1: Friday, April 10

8:25–8:30 Opening Remarks
Session 1: Advances in Local Treatment of Breast Cancer — Optimization and De-escalation
Chairs: K. Shimazu (Japan), M. Yoshimura (Japan)
8:30–8:50 Advances in Local Treatment of Breast Cancer: Optimization and De-escalationI. Jatoi (USA)
8:50–9:10 Modern Breast Radiotherapy: Less, Shorter, SmarterY. Ono (Japan)
9:10–9:30 De-escalation Strategies of Local Treatment for Breast CancerY. Sagara (Japan)
9:30–9:50 Omission of Breast Surgery in Early Breast Cancer: Expanding Frontiers in DCIS and Post-Neoadjuvant Complete ResponseT. Shien (Japan)
9:50–10:10 Discussion and Voting
Session 2: Advances in Axillary Management of Breast Cancer — Optimization and De-escalation
Chairs: C. Yamauchi (Japan), S. Imoto (Japan)
10:20–10:45 De-escalation of Axillary Surgery — Optimization of ManagementJ. R. Benson (USA)
10:45–11:10 Evolution and Optimization of Axillary Surgery in Breast CancerM. Inokuchi (Japan)
11:10–11:35 Optimization and De-escalation of Regional Nodal Irradiation and Radiation Treatment Considerations in the Era of Axillary Surgical De-escalationR. Jagsi (USA)
11:35–12:00 Discussion and Voting
Session 3: Neoadjuvant Therapy and Local Treatment
Chairs: J. Watanabe (Japan), M. Miyashita (Japan)
13:00–13:20 G. Curigliano (Italy)
13:20–13:40 Redefining Perioperative Treatment After KEYNOTE-522 – Immunotherapy, ADCs, and Treatment IndividualizationH. Rugo (USA)
13:40–14:00 M. Kok (Netherlands)
14:00–14:40 Discussion and Voting
Session 4: Tailoring Treatment Intensity in HR+/HER2– Early Breast Cancer
Chairs: S. Saji (Japan), M. Takada (Japan)
15:40–16:00 N. Harbeck (Germany)
16:00–16:20 Tailoring Treatment Intensity in HR+/HER2– Early Breast Cancer: Japan-Initiated Trials in the Global LandscapeH. Masuda (Japan)
16:20–16:40 Update in Multigene Assays and cfDNA Analysis in Early Breast CancerW. Han (South Korea)
16:40–17:20 Discussion and Voting

Day 2: Saturday, April 11

Session 5: Biomarker
Chairs: T. Sugie (Japan), T. R. Kataoka (Japan)
Omission of Breast Surgery in Early Breast Cancer: Expanding Frontiers in DCIS and Post-Neoadjuvant Complete ResponseT. Sugie (Japan)
8:30–8:55 T. Ueno (Japan)
8:55–9:20 D. Ma (China)
9:20–9:45 Clinical Translation of the Breast Tumor–Immune Landscape to Your Daily PracticeR. Salgado (Belgium)
9:45–10:10 Discussion and VotingPresenters listed above and S. Fox (Australia)
Session 6: Reimagining the Future — A New Era of Breast Cancer Screening and Risk Prediction
Chairs: M. Toi (Japan), M. Kataoka (Japan)
11:10–11:30 Reimagining Breast Cancer Screening: Implementing Risk-Based Strategies for Japanese Women in the Era of AI and GenomicsH. Yamauchi (USA)
11:30–11:50 Artificial Intelligence for Breast Cancer Risk Prediction in Asian PopulationsG. Lin (Taiwan)
11:50–12:10 METIS Eye: Clinical Evidence and Real-World Cases — Can AI Serve as a "Second Eye"?M. Takahashi (Japan)
12:10–12:30 Evolutionary Histories of Breast Cancer and Related ClonesT. Nishimura (Japan)
12:30–12:50 Discussion and Voting
Consensus Sessions
13:50–15:20 Poster Award Ceremony
Panel Consensus Session 1
15:30–17:00 Panel Consensus Session 2
Download Program PDF

Faculty member

Confirmed international guests :

John Benson
John Benson
Addenbrooke's Hospital, University of Cambridge and Anglia Ruskin University, UK
Giuseppe Curigliano
University of Milan and European Institute of Oncology, Italy
Stephen Fox
Stephen Fox
Peter MacCallum Cancer Centre, Australia
Wonshik Han
Wonshik Han
Seoul National University College of Medicine, South Korea
Nadia Harbeck
Nadia Harbeck
LMU University Hospital, Munich, Germany
Reshma Jagsi
Reshma Jagsi
Emory University School of Medicine, USA
Ismail Jatoi
Ismail Jatoi
University of Texas San Antonio, USA
Marleen Kok
Marleen Kok
Netherlands Cancer Institute, The Netherlands
Gigin Lin
Gigin Lin
Department of Radiology, Chang Gung Memorial Hospital, Taiwan
Ding Ma
Tongji Medical College of HUST, Chinese Academy of Engineering, China
Hope Rugo
Hope Rugo
City of Hope Comprehensive Cancer Center, USA
Roberto Salgado
Roberto Salgado
ZAS Middelheim, Antwerpen, Belgium, Peter Mac Callum Cancer Centre
Hideko Yamauchi
Hideko Yamauchi
Hawaii University, USA

Confirmed domestic guests and speakers :

Tomoyuki Aruga
Tomoyuki Aruga
Institute of Science Tokyo
Shigeru Imoto
Shigeru Imoto
Kyorin University Hospital
Masafumi Inokuchi
Masafumi Inokuchi
Kanazawa Medical University Hospital
Masako Kataoka
Masako Kataoka
Kyoto University Hospital
Tatsuki R Kataoka
Iwate Medical University
Kosuke Kawaguchi
Kosuke Kawaguchi
Mie University
Masahiro Kawashima
Masahiro Kawashima
Kyoto University Hospital
Hiroko Masuda
Hiroko Masuda
Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital
Norikazu Masuda
Norikazu Masuda
Kyoto University
Koji Matsumoto
Hyogo Cancer Center
Minoru Miyashita
Minoru Miyashita
Tohoku University
Yoichi Naito
Yoichi Naito
National Cancer Center Hospital East
Takahiro Nakayama
Takahiro Nakayama
Osaka International Cancer Institute
Tomomi Nishimura
Japanese Red Cross Fukui Hospital
Yuka Ono
Yuka Ono
Kyoto University Hospital
Yasuaki Sagara
Yasuaki Sagara
Kyoto University Hospital
Saji Shigehira
Saji Shigehira
Fukushima Medical University
Tadahiko Shien
Tadahiko Shien
Okayama University Hospital
Kenzo Shimazu
Kenzo Shimazu
The University of Osaka Hospital
Tomoharu Sugie
Tomoharu Sugie
Kansai Medical University Kori Hospital
Masahiro Takada
Masahiro Takada
Kansai Medical University
Maiko Takahashi
Maiko Takahashi
Keio University Hospital
Yuko Takahashi
Okayama University
Masakazu Toi
Masakazu Toi
Tokyo Metropolitan Cancer and Infectious Diseases Center
Wakako Tsuji
Wakako Tsuji
Shiga General Hospital
Junji Tsurutani
Junji Tsurutani
Showa University
Takayuki Ueno
Cancer Institute Hospital of JFCR
Junichiro Watanabe
Junichiro Watanabe
Juntendo University
Chikako Yamauchi
Chikako Yamauchi
Shiga General Hospital
Michio Yoshimura
Michio Yoshimura
Kyoto University Hospital

Registration

Registration is processed through Peatix, an external ticketing platform.

Registration Fees

General JPY 20,000 Participants who do not fall into any of the categories below
Member JPY 15,000 Japanese Breast Cancer Society / KBCRN members
Fellows / Residents / Students JPY 5,000
Patient Advocacy Group Members JPY 5,000
Co-sponsored Seminar Companies Free Up to 3 people per company (No Peatix registration required)
Invited Speakers Free Please do not register via this page

Early Registration Deadline (with meal voucher application)

Friday, March 27, 2026, 12:00 noon (JST)

On-site and late registration options are available, but meal vouchers are only included with early registration.

Advance registration from Saturday, March 28, 2026 (JST) onward is available via Peatix (on-site participation without meal vouchers and online participation).

Register

Supporters

Special Cooperation

Seminar Sponsor

  • CHUGAI PHARMACEUTICAL CO.,LTD
  • Exact Sciences K.K.
  • Guardant Health Japan Corp.
  • Daiichi-Sankyo Co., Ltd.
  • MSD K.K
  • Pfizer Japan Inc.
  • Eli Lilly Japan K.K.
  • Sojitz (China) Co., Ltd.

Exhibition Sponsor

  • Gilead Sciences K.K.
  • Medicon Inc.
  • Sojitz (China) Co., Ltd.
  • GE HealthCare
  • MITAKA KOHKI CO.,LTD

Advertising Sponsor

  • Kansaimedicalnet Co.,Ltd.
  • Nippon Boehringer Ingelheim Co., Ltd.
  • Japan China Health Industry Association
  • ASTRAZENECA
  • EP-Link Co., Ltd
  • HOLOGIC JAPAN
  • FUJIFILM Medical Co., Ltd.

Donation

  • Quadrille Nishida

Sponsored Seminar & Exhibition Flyers

Organizing Committee

Representative Organizer
Norikazu Masuda
Professor, Department of Breast Surgery
Graduate School of Medicine, Kyoto University
Organizer
Masahiro Takada
Professor, Department of Breast Surgery
Kansai Medical University
Organizer
Kosuke Kawaguchi
Professor, Breast Center
Mie University Hospital

Organizing Committee

Norikazu Masuda
Professor, Department of Breast Surgery Graduate School of Medicine, Kyoto University
Masahiro Takada
Professor, Department of Breast Surgery Kansai Medical University
Kosuke Kawaguchi
Professor, Breast Center Mie University Hospital
Tatsuki Kataoka
Professor, Division of Functional Pathology and Pathophysiology Department of Pathology, Iwate Medical University
Masako Kataoka
Program-specific Professor
Preemptive Medicine and Lifestyle-related Disease Research Center
Kyoto University Hospital
Masahiro Kawashima
Lecturer, Department of Breast Surgery
Graduate School of Medicine, Kyoto University
Nobuhiro Shibata
Clinical Lecturer, Cancer Center Kansai Medical University Hospital
Tomoharu Sugie
Director, Chemotherapy Center, Kansai Medical University Kori Hospital
Aya Noro
Assistant Professor, Breast Center, Mie University Hospital
Yurina Maeshima
Specially Appointed Assistant Professor, Department of Breast Surgery Graduate School of Medicine, Kyoto University
Kanae Miyake
Specially Appointed Associate Professor, Department of Advanced Medical Imaging (Industry–Academia Collaborative Course)
Graduate School of Medicine, Kyoto University
Michio Yoshimura
Associate Professor, Department of Radiation Oncology and Image-Applied Therapy, Kyoto University

Call for poster abstracts

The submission period has closed, and all applicants have been notified of the results.

Outstanding presentations will be recognized with awards and prizes💰

Brief description of the presentation submission period

Thu. December 18, 2025 - Mon. March 9th, 2026

Abstract Submission Process

First, please submit your presentation title together with a brief description (approximately 250 words).
Notification of acceptance will be sent around March 10th 2026.
If your abstract is accepted, you will then be asked to submit the full abstract (approximately 450 words).

Field / Topic

  1. Basic & Translational Breast Cancer Research
  2. Breast Cancer Biology, Genomics & Biomarkers
  3. Tumor Microenvironment & Immunology / Immunotherapy
  4. Hormone Receptor–Positive Breast Cancer
  5. HER2-Positive Breast Cancer
  6. Triple-Negative Breast Cancer (TNBC)
  7. Early & Locally Advanced Breast Cancer
  8. Metastatic / Advanced Breast Cancer
  9. Systemic Therapy (Chemotherapy, Targeted & Endocrine Therapy)
  10. Neoadjuvant & Adjuvant Therapy
  11. Breast Surgery & Reconstruction
  12. Radiation Oncology
  13. Imaging, Diagnostics, Pathology & Precision Medicine
  14. Clinical Trials & Real-World Evidence
  15. Survivorship, Supportive Care & Quality of Life
  16. Prevention, Genetics, Health Policy & Global Breast Cancer Care
  17. Other (please specify)
Submission

Company sponsorship program

⬇ Bylaws of Kyoto Breast Cancer Consensus Conference 2026 International Convention PDF ⬇ Bank Transfer Information PDF ⬇ Sponsorship Prospectus PDF ⬇ Sponsorship Application Form and Package Details XLSX

If the budget statement is required for your review, please contact the Secretariat.

Flyer Placement Request

We are no longer accepting requests for flyer distribution.

Form for Placing Flyers and Posters for Related Academic Societies, etc.

Registration Deadline: March 31

As advance registration is required in principle, please review the notes within the form and submit your application if you wish to participate.

The mailing address will be sent via email sequentially after receipt of your application.

Application Form