The 98th Annual Meeting of Japanese Gastric Cancer Association (JGCA 2026) will be held in conjunction with The 11th Asia-Pacific Gastroesophageal Cancer Congress (APGCC 2026)

As of July 28, 2025

• Presidential Lecture
• Congress Presidential Lecture
• Special Lecture
• Plenary Session
• Presidential Session
• JGCA Academic Session
• Educational Seminar
• Patient Advocacy Session
• JGCA-CGCA-KGCA Joint Session
• Workshop of Endoscopic Stimulative Development
• APGCC×JGCA Joint Session
• Symposium
• Panel Discussion
• Workshop

Presidential Lecture

Presidential Lecture
The Future of the Japanese Gastric Cancer Association

Thursday, March 511:50–12:20
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Mitsuru Sasako	(Surgery, Yodogawa Christian Hospital)

The Future of the Japanese Gastric Cancer Association

Speaker	Yoshihiro Kakeji	(Division of Gastrointestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan)

Congress Presidential Lecture

Congress Presidential Lecture

Thursday, March 511:20–11:50
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Yoshihiro Kakeji	(Division of Gastrointestinal Surgery, Department of Surgery, Kobe University)
Speaker	Kei Muro	(Aichi Cancer Center Hospital)

Special Lecture

Special Lecture
A surgeon for life

Wednesday, March 415:40–16:20
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Takeshi Sano	(Hospital Director, Cancer Institute Hospital of JFCR)

A surgeon for life

Speaker	Motoki Ninomiya	(Digestive Disease Center, Yuuai Medical Center, Tomigusuku, Japan)

Special Lecture
Latest paradigm shifts in drug discovery and developmental studies

Wednesday, March 416:20–17:00
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Kei Muro	(Aichi Cancer Center Hospital)

Latest paradigm shifts in drug discovery and developmental studies

Speaker	Atsushi Ohtsu	(Research Unit, Japanese Foundation for Cancer Research, Tokyo, Japan)

Special Lecture
Japanese pharmaceutical companies and anti-cancer drug development from a securities analyst’s perspective

Thursday, March 513:40–14:20
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Kei Muro	(Aichi Cancer Center Hospital)

Japanese pharmaceutical companies and anti-cancer drug development from a securities analyst’s perspective

Speaker	Hidemaru Yamaguchi	(Citi Research Citigroup Global Markets Japan Inc Tokyo Japan)

Special Lecture
Challenges and Prospects for Japan’s Healthcare System Toward 2040

Thursday, March 514:20–15:00
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Yuko Kitagawa	(Surgery, Keio University School of Medicine)

Challenges and Prospects for Japan’s Healthcare System Toward 2040

Speaker	Kazunari Asanuma	(National Institute of Public Health)

Plenary Session

Plenary Session
Update of the Japanese Classification of Gastric Carcinoma

Wednesday, March 413:30–14:10
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Shuji Takiguchi	(Department of Gastroenterological Surgery, Nagoya City University)

The 16th Edition of the Japanese Classification of Gastric Carcinoma: Publication and Perspectives

Speaker	Ryoji Kushima	(Department of Pathology, Shiga University of Medical Science, Otsu, Japan)

Plenary Session
Current status of JGCA certified institutions

Wednesday, March 414:10–14:30
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Yoshihiro Kakeji
Speaker	Yoshiyuki Fujiwara

Plenary Session
What will happen? What should we do about perioperative pharmacotherapy for resectable gastric cancer?

Wednesday, March 414:30–15:30
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Daisuke Ichikawa	(First Department of Surgery, University of Yamanashi)
	Kei Muro	(Aichi Cancer Center Hospital)

Discussant	Eiji Oki	(Center of integration of Advanced Medicine Life Science Innovative Technology, Kyushu University)
	Ken Kato	(Department of Gastrointestinal Medical Oncology, National Cancer Center Hospital)

Speaker	Takeshi Omori	(Department of Gastroenterological Surgery, Osaka International Medical and Science Center, Osaka Keisatsu Hospital)

Presidential Session

Presidential Session
Building Care Together with Patients and Clinicians

Thursday, March 59:00–10:15
Room 6 (1st Floor, Ginowan City Gymnasium)

Chair	Kei Muro	(Aichi Cancer Center Hospital)
	Sachiko Kawakami	(Medical Planning Maneger, Cancer information site "Oncolo")

Living with Cancer depending on medication

Speaker	Takahiro Hirano	(Director, igannet Association)

Speaker	Tomohiro Nishina	(Department of Gatrointestinal Medical Oncology, NHO Shikoku Cancer Center)

Opening the Door to the Future ~A Decade of Gastric Cancer Patient Advocacy and Expectations for the Years to Come~

Speaker	Hiromi Todoroki	(Chairperson, igannet Association)

The history and significance of patient advocacy in the cancer field

Speaker	Sachiko Kawakami	(Cancer information site "Oncolo")

Presidential Session
Pivotal Clinical Trials

Thursday, March 515:10–16:40
Room 2 (A1, 1st Floor, Conference Building A, Okinawa Convention Center)

Chair	Eiji Oki	(Department of Advanced Medicine and Innovative Technology, Kyushu University Hospital)
	Yoshito Komatsu	(Department of Cancer Center, Hokkaido University Hospital)

KEYNOTE-811: Pembrolizumab plus chemotherapy and trastuzumab for participants in Japan with HER2-positive G/GEJ cancer

Speaker	Akihito Kawazoe	(Department of Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan)

T-DXd vs. RAM + PTX in 2L treatment of HER2+ advanced gastric cancer/GEJA: Additional data from DESTINY-Gastric04

Speaker	Yukiya Narita	(Department of Clinical Oncology, Aichi Cancer Center Hospital)

Exploratory analysis of HER2 status based on central and local testing results from the DESTINY-Gastric04 study

Speaker	Taroh Satoh	(Center for Cancer Genomics and Precision Medicine, The University of Osaka Hospital, Osaka, Japan)

Randomized phase II trial of FTD/TPI+RAM versus FTD/TPI in pretreated gastric/GEJ adenocarcinoma (RETRIEVE, WJOG15822G)

Speaker	Akitaka Makiyama	(Cancer Center, Gifu University Hospital, Gifu, Japan)

JGCA Academic Session

Thursday, March 515:10–16:40
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Yasuhiro Kodera	(Department of Gastroenterological Surgery, NHO Nagoya Medical Center)
	Takaki Yoshikawa	(Department of Gastric Surgery, National Cancer Center Hospital)

Anatomical Site-Specific Lymph Node Metastasis Rates of Duodenal Cancers: 2019 NCD Research Project

Speaker	Masamichi Hayashi	(Department of Surgery, Graduate school of Medicine, Nagoya University, Nagoya, Japan)

Minimally Invasive Surgery for Remnant Gastric Cancer: Nationwide Analysis of Practice and Complication Risks Using NCD

Speaker	Nobuhiro Nakazawa	(Division of Gastroenterological Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan)

Impact of Perioperative Antithrombotic Therapy on Bleeding and Thromboembolic Events After Laparoscopic Gastrectomy

Speaker	Masayoshi Terayama	(Department of Gastroenterological Surgery, Gastroenterological Center, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan)

Metastasis Risk and Prognosis resulted in eCuraC-2 for Undifferentiated-type Early Gastric Cancer

Speaker	Shiotsuki Kazuo	(Department of Gastroenterology, Kanagawa Cancer Cancer, Kanagawa, Japan)

Observational study of anamorelin for cancer cachexia in patients with unresectable or recurrent gastric cancer

Speaker	Ryohei Kawabata	(Osaka International Cancer Institute, Osaka, Japan)

Elucidating the carcinogenic pathway in gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS)

Speaker	Chihiro Matsumoto	(Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University)

Educational Seminar

Wednesday, March 417:10–18:50
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Koichi Suda	(Divisions of GI & HPB, Department of Surgery, Fujita Health University)
	Hisato Kawakami	(Clinical Oncology, Tohoku University)

Personalized Treatment Approaches for Stage IV and Recurrent Gastric Cancer: A Biomarker-Based Perspective

Speaker	Takahari Daisuke	(Department of Medical Oncology, Gunma University Graduate School of Medicine, Maebashi, Japan)

Speaker	Takeshi Omori	(Department of Gastroenterological Surgery, Osaka International Medical and Science Center, Osaka Keisatsu Hospital)

Patient Advocacy Session

Patient Advocacy Session
Patient Advocacy and Patient & Public Involvement

Thursday, March 515:10–16:40
Room 3 (A2, 1st Floor, Conference Building A, Okinawa Convention Center)

Chair	Narikazu Boku	(Department of Oncology and General Medicine, IMSUT Hospital, Institute of Medical Science, University of Tokyo, Tokyo, Japan)

Speaker	Toshikazu Ushijima	(President Office, Hoshi University)

Endoscopic Treatment of Gastric Cancer:
Updates Based on the 7th Edition of the Gastric Cancer Treatment Guidelines

Speaker	Chika kusano	(Department of Gastroenterology, Kitasato University School of Medicine, Kanagawa, Japan)

Challenges of Minimally Invasive Surgery for Gastric Cancer and Patient and Public Involvement

Speaker	Eisuke Booka	(Department of Surgery, Hamamatsu University School of Medicine, Shizuoka, Japan)

Recent Progress in Systemic Chemotherapy for Gastric Cancer

Speaker	Narikazu Boku	(Department of Oncology and General Medicine, IMSUT Hospital, Institute of Medical Science, University of Tokyo, Tokyo, Japan)

JGCA-CGCA-KGCA Joint Session

Pharmacotherapy session
First-Line Chemotherapy for Unresectable Advanced Gastric Cancer: Standard Treatments Based on Clinical Guidelines of Japan, China, and Korea

Thursday, March 58:00–9:30
Room 4 (B1, 2nd Floor, Conference Building B, Okinawa Convention Center)

Chair	Kensei Yamaguchi	(Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of Japanese Foundation for Cancer Research)
	Yanqiao Zhang	(Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, China)
	Hye-Sook Han	(Department of Internal Medicine, Chungbuk National University, South Korea)

China's Pivotal Contributions to Drug Therapy for Advanced Gastric Cancer

Speaker	Zhi Peng	(Department of GI Oncology, Peking University Cancer Hospital, China)

First-Line Treatment Based on Clinical Guidelines of Japan, China, and Korea

Speaker	In-Ho Kim	(Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary’s Hospital, The College of Medicine, The Catholic University of Korea)

Current Status and Future Perspectives of First-Line Chemotherapy for Advanced Gastric Cancer in Japan

Speaker	Yukiya Narita	(Department of Clinical Oncology, Aichi Cancer Center Hospital)

Surgical session
Definition, Indication, and Surgical Techniques of Conversion Surgery: Based on the Guidelines of Japan, China, and Korea

Thursday, March 59:30–11:00
Room 4 (B1, 2nd Floor, Conference Building B, Okinawa Convention Center)

Chair	Yoshiyuki Fujiwara	(Division of Gastrointestinal and Pediatric Surgery, Department of Surgery, Tottori University)
	Seong-Ho Kong	(Department of Surgery, Seoul National University Hospital, Seoul, Korea)
	Lin Chen	(Department of Gastrointestinal Surgery, PeKing University International Hospital, PeKing University eighth clinical medical college, China, Beijing)

Special Remarks	Takaki Yoshikawa	(Department of Gastric Surgery, National Cancer Center Hospital)

Conversion Therapy Strategies for Locally Advanced Gastric Cancer in China: Current Status and Future Perspectives

Speaker	Jiankun Hu	(Gastric Cancer Center)

Current Evidence and Future Implications of Conversion Therapy in Korean Practice Guidelines

Speaker	Tae-Han Kim	(Department of Surgery, Seoul National University Bundang Hospital)

Speaker	Takeshi Omori	(Department of Gastroenterological Surgery, Osaka International Medical and Science Center, Osaka Keisatsu Hospital)

Workshop of Endoscopic Stimulative Development

Friday, March 612:40–15:10
Room 9 (1st Floor, Ginowan City Gymnasium)

Part 1-1

Chair	Kohei Takizawa	(Department of Gastroenterology, Kanagawa Cancer Center)

Efficacy and Feasibility of PuraStat in Upper Gastrointestinal Endoscopic Treatment

Speaker	Yuzuru Kinjo	(Department of Gastroenterology, Naha City Hospital, Okinawa, Japan)

Trends in Endoscopic Gastrointestinal Hemostasis: Including Clinical Experience with PureStat

Speaker	Hideki Kobara	(Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Japan)

Part 1-2

Chair	Naohiro Yoshida	(Department of Gastroenterology, Ishikawa Prefectural Central Hospital)
	Taro Iwatsubo	(Second Department of Internal Medicine, Osaka Medical and Pharmaceutical University)

A Case of Barrett’s Esophageal Adenocarcinoma Combined with Neuroendocrine Carcinoma

Speaker	Naoya Akamine	(Department of Gastroenterology, School of Medicine, Kitasato University, Sagaminara, Kanagawa, Japan)

Esophageal ulcer after OTSC closure of refractory post-endoscopic fistula: removal via OTSC cutting device

Speaker	Jin Sugimura	(Division of Gastroenterology, Hirakata City Hospital, Osaka, Japan)

A case of gastric inflammatory myofibroblastic tumor diagnosed during follow-up for gastric malignant lymphoma

Speaker	Hitoshi Mori	(Department of Gastroenterology, Nara Medical University, Nara, Japan)

A case of advanced gastric cancer accompanied by protein-losing gastroenteropathy

Speaker	Masanori Nobuhiro	(Department of Digestive Surgery, Niigata City General Hospital)

A Case of Gastric Hamartomatous Inverted Polyp Preoperatively Diagnosed and Successfully Resected by ESD

Speaker	Nozomu Hayakawa	(Department of Gastroenterology, Ishikawa Prefectural Central Hospital)

A case of recurrent gastric leiomyosarcoma after complete resection by endoscopic submucosal dissection

Speaker	Kaoru Sato	(Department of Gastroenterology, Tohoku University, Sendai, Japan)

Gastric-type adenocarcinoma with bidirectional differentiation into signet-ring cell and fundic gland-type

Speaker	Tomoko Ochiai	(Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan)

Screening of a gastric tumor by acetic acid-indigocarmine mixture with dimeticone method

Speaker	Junya Yamada	(Gastroenterologist, Yokkaichi Municipal Hospital, Yokkaichi, Mie, Japan)

Preoperative tissue diagnosis capability and significance of submucosal tunnel biopsy

Speaker	Kazuki Mukai	(Department of Gastroenterology and Digestive Endoscopy, Kagawa Saiseikai Hospital, Kagawa, Japan)

Underwater endoscopic submucosal dissection using gel immersion for early gastric cancer with situs inversus totalis

Speaker	Takahiro Muramatsu	(Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, Tokyo, Japan)

Combined Endoscopic Ligation with O-ring Closure and MANTIS Clip for Closure of Large Gastric ESD Defects

Speaker	Kazuhiro Kozuka	(Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan)

Early Intervention with Laparoscopic Gastrojejunostomy for Pyloric Stenosis After Gastric ESD: A Case Report

Speaker	Yuichiro Hirai	(Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan)

Evaluation of the Safety and Efficacy of CFP for gastric foveolar-type adenoma with raspberry-like appearance

Speaker	Momoko Yamamoto	(Department of Gastroenterology, Juntendo University School of Medicine, Tokyo, Japan)

Treatment Outcomes of Endoscopic Submucosal Dissection for Relative Indication Lesions in Elderly Patients

Speaker	Hajime Yoshii	(Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan)

Evaluation of short-term outcomes of gastric endoscopic submucosal dissection using SARC-F

Speaker	Hironori Tanaka	(Second department of internal medicine, osaka medical and pharmaceutical university / Department of Gastroenterology, Moriguchi Keijinkai Hospital)

Efficacy of Pre-incision Traction Endoscopic Submucosal Dissection (PiT-ESD) for early gastric cancer

Speaker	Eisuke Nakao	(Department of Gastroenterology, Tane General Hospital, Osaka, Japan)

Two Cases of Duodenal Intramucosal Carcinoma with Distant Metastasis after Resection

Speaker	Wataru Kurihara	(Department of Gastroenterology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan)

Duodenal subepithelial lesion without an endoscopically identifiable opening site

Speaker	Hirotaka Oura	(Department of Gastroenterology, Tokyo Women’s Medical University Yachiyo Medical Center, Chiba, Japan)

Securing Visualization in Endoscopic Mucosal Resection of Lesions on the Oral Protrusion of the Major Duodenal Papilla

Speaker	Teppei Masunaga	(Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan)

Evaluation of Endoscopist Fatigue Using Muscle Stiffness Measurement

Speaker	Yasuhiro Taniguchi	(Department of Gastroenterology, Sasebo City General Hospital, Nagasaki, Japan)

Friday, March 615:20–18:00
Room 9 (1st Floor, Ginowan City Gymnasium)

Chair	Motohiko Kato	(Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine)
	Fumisato Sasaki	(Department of Gastroenterology, Kagoshima University)

Commentator	Kingo Hirasawa	(Endoscopy Division, Yokohama City University Medical Center)

Complicated duodenal ulcer bleeding, should OTSC selected as a primary endoscopic treatment?

Speaker	Kamin Harinwan	(Division of Gastroenterology and Hepatology, Department of Medicine, Phramongkutklao Hospital and college of medicine, Bangkok, Thailand)

Visual gaze pattern review as a tool to improve endoscopic submucosal dissection skills

Speaker	Đặng Thanh Huy	(Department of Internal Medicine, School of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam)

ESD for a large neoplasm on the gastric fundus overlying fundic gland polyposis in a patient with FAP

Speaker	Kosuke Tanaka	(Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan)

Endoscopic outcomes after H. pylori therapy: a single-center prospective cohort study using the Kyoto Classification

Speaker	Munkhsaruul Bayaraa	(Department of Gastroenterology and Endoscopy, UB Songdo hospital, Ulaanbaatar city)

Underwater ESD with Gas Free Immersion and Express Mode using a large-electrode device

Speaker	Hiroki Kato	(Department of Gastroenterology,Yokkaichi Municipal Hospital, Mie, Japan)

The Utility of the Dedicated ’Attach Bend’ for the EG-840TP Slim-Diameter Upper GI Treatment Endoscope

Speaker	Yuzo Toyama	(Department of Gastroenterology, New Tokyo Hospital,Chiba, Japan)

Endoscopic submucosal dissection for gastric or duodenal tumors involving the pyloric ring

Speaker	Takaya Shimura	(Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences)

Simplifying Gastric ESD for Beginners: Practical Strategy and Stepwise Planning

Speaker	Trần Đức Cảnh	(Endoscopic and funtional exploration Department, National Cancer Hospital, VietNam)

S-O clip assisted endoscopic submucosal dissection of gastric fornix lesions

Speaker	Yasuhiko Mizuguchi	(National Cancer Center Hospital, Tokyo, Japan)

Endoscopic closure of a refractory fistula using a novel cap-assisted poly-glycolic acid sheet application method

Speaker	Noriaki Sugawara	(Endoscopy center, Osaka Medical and Pharmaceutical University Hospital, Osaka, Japan)

Two-Stage Endoscopic Treatment within a Short Interval for Early Gastric Cancer and Gastric GIST: A Case Report

Speaker	Atsushi Sawada	(Division of Endoscopy, Yokohama City University Medical Center, Yokohama, Kanagawa, Japan)

ESD for a Large Fornix Tumor Without Retroflexion: Overcoming Anatomical Challenges by Appropriate Endoscope Selection

Speaker	Yusaku Takatori	(Divisions of GI & HPB Surgery, Department of Surgery, Fujita Health University, Toyoake, Japan / Collaborative Laboratory for Research and Development in Advanced Surgical Intelligence, Fujita Health University, Toyoake, Japan)

Case illustrations of difficult endoscopic resections in the upper gastrointestinal tract

Speaker	Hon Chi Yip	(Department of Surgery, Faculty omf Medicine, the Chinese University of Hong Kong, Hong Kong SAR)

Endoscopic Full Thickness Resection of Upper GI Subepithelial Lesion with Full Thickness Closure Using the X-Tack System

Speaker	James Li Weiquan	(Sengkang General Hospital, Singapore Health Services / Yong Loo Lin School of Medicine, National University of Singapore, Singapore / Duke-NUS Medical School, Singapore)

A case of early gastric antrum cancer treated with ESD

Speaker	Wang Chong	(Department of gastroenterology, The first affiliated hospital of Nanchang University, Jiangxi, China)

A case of gastric submucosal tumor treated with endoscopic full-thickness resection using a scissor-type knife

Speaker	Hitoshi Mori	(Department of Gastroenterology, Nara Medical University, Nara, Japan)

APGCC×JGCA Joint Session

Thursday, March 58:10–11:00
Room 5 (B2, 1st Floor, Conference Building B, Okinawa Convention Center)

Chair	Fumiaki Ishibashi	(Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, Japan)
	Rapat Pittayanon	(Department of Gastroenterology, Faculty of Medicine, Chulalongkorn University, Thailand)
	Vo Duy Long	(University Medical Center at Ho Chi Minh City, Viet Nam)
	Takuji Gotoda	(Department of Gastroenterology, Cancer Institute Hospital, Japanese Foundation for Cancer Research)

Surveillance of gastric premalignant conditions in Asia

Special Lectrure	Wai-keung Leung	(Department of Medicine, University of Hong Kong, Hong Kong, China)

Special Remarks	Han-Kwang Yang	(National Cancer Center, KOREA, Korea)

Clinical Questions and Presenters

CQ1: Is screening esophagogastroduodenoscopy (EGD) necessary for detecting non-cardia gastric cancer (NCGC) in asymptomatic individuals in regions with low to moderate prevalence?

	Ayaka Takasu	(Cancer Institute Hospital, Japanese Foundation for Cancer Research, Japan)

CQ2: Is esophagogastroduodenoscopy (EGD) more effective than upper gastrointestinal series (UGI) for detecting early non-cardia gastric cancer (NCGC) in asymptomatic individuals in regions with low to moderate prevalence?

	Ayaka Takasu	(Cancer Institute Hospital, Japanese Foundation for Cancer Research, Japan)

CQ3: Is risk stratification beneficial for detecting early non-cardia gastric cancer (NCGC) in the regions with low-moderate prevalence?

	Munkhsaruul Bayaraa	(UB Songdo hospital, Mongolia)

CQ4: Can serological biomarkers assist in the identification of non-cardia gastric cancer (NCGC) in at-risk populations?

	James Li Weiquan	(Sengkang General Hospital, Singapore)

CQ5: Should oral preparations be used routinely pre-esophagogastroduodenoscopy (pre-EGD) for detecting early non-cardia gastric cancer (NCGC)?

	Hyunsoo Chung	(Seoul National University, Korea)

CQ6: Does esophagogastroduodenoscopy (EGD) under sedation improve the detection rate of early non-cardia gastric cancer (NCGC)?

	Hyunsoo Chung	(Seoul National University, Korea)

CQ7: Can be the appropriate inspection time for esophagogastroduodenoscopy (EGD) defined to avoid missing early non-cardia gastric cancer (NCGC)?

	Rapat Pittayanon	(Chulalongkorn University, Thailand)

CQ8: Should systematic photodocumentation with landmarks in esophagogastroduodenoscopy (EGD) be standardized to improve the detection rate of early non-cardia gastric cancer (NCGC)?

	Le Dinh Quang	(University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam)

CQ9: Does image-enhanced endoscopy improve detection of early non-cardia gastric cancer (NCGC)?

	Hon Chi Yip	(Chinese University of Hong Kong, Hong Kong SAR)

CQ10: Can endoscopic imaging accurately assess gastric atrophy or intestinal metaplasia to help identify high-risk patients for early non-cardia gastric cancer (NCGC)?

	Ayaka Takasu	(Cancer Institute Hospital, Japanese Foundation for Cancer Research, Japan)

CQ11: Should artificial intelligence (AI) endoscopy be used for improving detection rated of early non-cardia gastric cancer (NCGC) in low to moderate prevalence regions?

	Kamin Harinwan	(Phramongkutklao Hospital and college of medicine, Thailand)

Voter	Joo Ha Hwang	(Stanford University, United States)
	Chul Hyun	(Yale School of Medicine, United States)
	Robert Bechara	(Queen’s University, Canada)
	Paulo Kassab	(Brazil)
	Renata Nobre	(Brazil)
	José Murillo	(Costa Rica)
	Sabina Beg	(Imperial College Healthcare NHS Trust, United Kingdom)
	Adolfo Parra-Blanco Nottingham	(University Hospitals NHS Trust, United Kingdom)
	Vincenzo Giorgio Mirante	(Italy)
	Federico Iacopini	(Ospedale dei Castelli Hospital, Italy)
	Pedro Delgado-Guillena	(Hospital de Mérida, Spain)
	Marta Rodriguez-Carrasco	(Portuguese Oncology Institute of Porto, Portugal)
	Seung-Hun Chon	(University of Cologne, Germany)
	Grigorios Christodoulidis	(University hospital of Larisa)
	Sergey Kashin	(Yaroslavl Regional Cancer Hospital, Russian Federation)
	Roman Kuvaev	(Yaroslavl Regional Cancer Hospital, Russian Federation)
	Zili Xiao	(Huadong Hospital Affiliated to Shanghai Fudan University)
	Yu Hong Ian WONG	(Division of Esophageal and Upper Gastrointestinal Surgery)
	Duc Trong Quach	(University of Medicine and Pharmacy at Ho Chi Minh City, Vietnam)
	Mitsuru Esaki	(Kyushu University, Japan)
	Waku Hatta	(Tohoku University Graduate School of Medicine, Japan)
	Motohiko Kato	(Keio University School of Medicine, Japan)
	Seiichiro Abe	(National Cancer Center Hospital, Japan)
	Sho Suzuki	(International University of Health and Welfare Ichikawa Hospital, Japan)
	Kohei Takizawa	(Kanagawa Cancer Center, Japan)

APGCC×JGCA Joint Session Panel Discussion
MIS for advanced gastric cancer

Thursday, March 515:10–16:40
Room 5 (B2, 1st Floor, Conference Building B, Okinawa Convention Center)

Chair	Souya Nunobe	(Department of Gastric Surgery,Cancer Institute Hospital)
	Hyuk-Joon Lee	(Department of Surgery, Seoul National University Hospital, Republic of Korea)

Feasibility of Minimally Invasive Conversion Surgery for Advanced Gastric Cancer: A Multicenter Retrospective Study

Speaker	Kazutaka Obama	(Department of Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan)

the current status and prospects of minimally invasive surgery for gastric cancer in china

Speaker	Hua Huang	(Department of Gastric Surgery, Fudan University Shanghai Cancer Center, CHINA)

Minimal Invasive Surgery for Advanced Gastric Cancer

Speaker	Vo Duy LONG	(Department of Gastro-Intestinal Surgery, University Medical Center at Ho Chi Minh City)

Korean Experience of MIS for AGC

Speaker	Do Joong Park	(Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul National University Hospital)

APGCC×JGCA Joint Session Panel Discussion
Developing optimal surgical procedure for EGJ cancer

Thursday, March 516:50–18:20
Room 5 (B2, 1st Floor, Conference Building B, Okinawa Convention Center)

Chair	Satoru Matsuda	(Department of Surgery, Keio University School of Medicine)
	Simon Law	(Department of Surgery, The University of Hong Kong, Hong Kong)

Commentator	Guowei KIM	(Crest Surgical Practice, Mount Elizabeth Hospital, Singapore, Singapore)

Optimal Extent of Lymphadenectomy for Esophagogastric Junction Cancer

Speaker	Yukinori Kurokawa	(Department of Gastroenterological Surgery, The University of Osaka, Osaka, Japan)

Deciding on the optimal surgical approach for cancer of the esophago-gastric junction: My Approach

Speaker	Simon Law	(The Department of Surgery, School of Clinical Medicine, The University of Hong Kong)

Surgical Preference in Reconstruction After Proximal Gastrectomy for EGJ Cancer: Double-Flap Versus Double-Tract

Speaker	Hyoung-Il Kim	(Department of Surgery, Yonsei University, Severance Hospital, South Korea)

Complications After Esophagogastric Junction Cancer Resection: Prevention, Recognition, and Rescue Strategies

Speaker	Kelvin Voon	(Department of Surgery, Sunway Medical Centre Penang, Malaysia)

Friday, March 68:00–9:30
Room 5 (B2, 1st Floor, Conference Building B, Okinawa Convention Center)

Chair	Chika Kusano	(Department of Gastroenterology, Kitasato University School of Medicine)
	Joo Ha Hwang	(Division of Gastroenterology, Stanford University, United States)

Speaker	Jeon, Seong Woo	(Division of Gastroenterology, Stanford University, United States)

Gastric Cancer Prevention and Screening Efforts in the US

Speaker	Joo Ha Hwang	(Stanford University)

Current Status of Gastric Cancer Screening in the Asia-Pacific Region

Speaker	Quach Duc	(Department of Internal Medicine, University of Medicine and Pharmacy at Ho Chi Minh City)

To whom, when, and how should gastric cancer screening be offered? The European perspective

Speaker	Ernst Kuipers	(LKC School of Medicine, Nanyang Technological University, Singapore)

Gastric Cancer Screening in Japan: Current Practices and Future Perspectives

Speaker	Fumiaki Ishibashi	(Department of Gastroenterology, International University of Health and Welfare Ichikawa Hospital, Chiba, Japan)

APGCC×JGCA Joint Session Panel Discussion
Perioperative chemotherapy strategies for locally advanced, oligo metastastatic, and borderline resectable gastric cancer

Friday, March 69:40–11:10
Room 5 (B2, 1st Floor, Conference Building B, Okinawa Convention Center)

Chair	Takahiro Kinoshita	(Department of Gastric Surgery, National Cancer Center Hospital East)
	Sun Young Rha	(Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul Korea)

Optimizing Perioperative Chemotherapy for Locally Advanced Gastric Cancer: Insights from the Taiwan Strategy

Speaker	Ming-Huang Chen	(Department of Oncology, Taipei Veterans General Hospital, Taiwan)

Conversion therapy for locally advanced and oligometastatic GC

Speaker	Sun Young Rha	(Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul Korea)

The Challenge of advanced resectable and near resectable gastric cancer in North America - current strategies

Speaker	Emile Woo	(University of British Columbia)

Application of Immunotherapy in Perioperative and Conversion Strategies of Gastric Cancer:Insights from Chinese Guidelines and Expert Consensus

Speaker	Guoxin Li	(Cancer Center, Beijing Tsinghua Changgung Hospital, China)

Perioperative chemotherapy for locally advanced gastric cancer. Perspectives from Japanese clinical practice

Speaker	Hiroharu Yamashita	(Department of Surgery, Division of Gastroenterological, General and Transplant Surgery, Jichi Medical University, Shimotsuke, Japan)

APGCC×JGCA Joint Session Panel Discussion
Treatment of gastric cancer with peritoneal metastasis

Friday, March 612:40–14:10
Room 5 (B2, 1st Floor, Conference Building B, Okinawa Convention Center)

Chair	Narikazu Boku	(Department of Oncology and General Medicine, IMSUT Hospital, Institute of Medical Science, University of Tokyo)
	Hiroharu Yamashita	(Department of Surgery, Division of Gastroenterological, General and Transplant Surgery, Jichi Medical University)

Systemic therapy of GCPM

Speaker	Wei-Peng Yong	(Department of Haematology-Oncology, National University Cancer Institute, Singapore; National University Hospital, Singapore, Singapore)

Intraperitoneal chemotherapy for gastric cancer

Speaker	Hironori Ishigami	(Department of Chemotherapy, The University of Tokyo Hospital, Tokyo, Japan)

Efficacy of intraperitoneal paclitaxel in gastric cancer with peritoneal metastasis (DRAGON-01)

Speaker	Chao Yan	(Ruijin Hospital, Shanghai Jiao Tong University School Of Medicine)

Novel discoveries and therapy of peritoneal metastasis

Plenary lecture	Jimmy So	(Department of Surgery, National University Health System)

APGCC×JGCA Joint Session Panel Discussion
Conversion Surgery for metastatic GC

Friday, March 614:20–15:50
Room 5 (B2, 1st Floor, Conference Building B, Okinawa Convention Center)

Chair	Takaki Yoshikawa	(Department of Gastric Surgery, National Cancer Center Hospital)
	Florian Lordick	(Department of Oncology, University of Leipzig Medical Center, Germany)

Genomic Alterations Across the Life Course of Gastric Cancer

Speaker	Patrick Tan	(Duke-NUS Medical School, Programme in Cancer & Stem Cell Biology)

Conversion surgery for gastric cancer: Theoretical rationale and JCOG2301 trial

Speaker	Takaki Yoshikawa	(Department of Gastric Surgery, National Cancer Center Hospital, Tokyo, Japan)

Conversion surgery - a narrow path between healing and harm

Speaker	Florian Lordick	(Department of Oncology, University of Leipzig Medical Center)

Speaker	Feng Wang	(Department of Medical Oncology, Sun Yat-Sen University Cancer Center, China, Guangzhou)

Young cancer patient with oligometastatic gastric cancer

Speaker	Radka Obermannová	(Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute and Faculty of Medicine, Masaryk University, Czech Republic)

Symposium

Symposium
Current Perspectives on Splenic Hilum Dissection: Balancing Curability and Safety

Thursday, March 58:00–9:30
Room 8 (1st Floor, Ginowan City Gymnasium)

Chair	Kazutaka Obama	(Departmenr of Surgery, Kyoto University)
	Kazunari Misawa	(Department of Gastroenterological Surgery, Aichi Cancer Center)

Laparoscopic and Robotic Hilar Lymphadenectomy for Advanced Proximal Greater Curvature Gastric Cancer

Speaker	Hironori Ohdaira	(Dept Surgery, IUHW Hospital)

Robot-assisted complete splenic hilum dissection with spleen preservation for upper gastric cancer

Speaker	Fumihiro Yoshimura	(Department of Gastroenterological Surgery, Fukuoka University Hospital, Fukuoka, Japan)

Surgical technique and outcomes of minimally invasive spleen-preserving hilar lymphadenectomy

Speaker	Ayumi Umemiya	(Gastric Surgery Division, National Cancer Center Hospital East, Chiba, Japan)

Surgical Technique and Short-term Outcomes of Robotic Total Gastrectomy with Splenectomy

Speaker	Tsuyoshi Tanaka	(Department of Surgery, Fujita Health University)

Spleen-preserving #10 lymph node dissection for upper third gastric cancer

Speaker	Hironori Kawada	(Hyogo Prefectural Amagasaki General Medical Center)

Phase II study to evaluate safety and feasibility of LRSHD for proximal advanced gastric cancer: JCOG1809

Speaker	Junya Kitadani	(Second Department of Surgery, Wakayama Medical University)

Robotic splenic hilum lymph node dissection without splenectomy during the ICI era

Speaker	Osamu Ikeda	(Department of Gastroenterological Surgery, Saga Medical Centre KOSEIKAN)

Strategic surgical field management and procedural standardization for safe and effective splenic hilar lymphadenectomy

Speaker	Shinji Kuroda	(Department of Gastroenterological Surgery, Okayama University, Okayama, Japan)

Symposium
Type 4 Gastric Cancer: Reconsidering Surgical Indications and Treatment Strategies

Thursday, March 59:30–11:00
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Takeo Fukagawa	(Department of Surgery, Teikyo University)
	Daisuke Ichikawa	(First Department of Surgery, University of Yamanashi)

Therapeutic Strategies with Staging Laparoscopy for Type 4 Gastric Cancer

Speaker	Yoshihiko Kawaguchi	(First Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan)

Staging Laparoscopy and Predictive Score in Type 4 Gastric Cancer: Diagnostic Accuracy and Outcomes after Chemotherapy

Speaker	Kensuke Kudou	(Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan.)

A Phase II Study of Preoperative DCS Therapy for Large Type 3 and Type 4 Gastric Cancer (OGSG1402)

Speaker	Junji Kawada	(Department of Surgery, Nippon Life Hospital / Department of Surgery, Kaizuka City Hospital)

Treatment outcome of neoadjuvant DOS therapy for type 4 gastric cancer

Speaker	Takuro Saito	(Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, The University of Osaka, Osaka, Japan / Department of Gastroenterological Surgery, Graduate School of Medicine, The University of Osaka)

New targeting drugs improved prognosis of type 4 gastric cancer with peritoneal metastasis?

Speaker	Yuki Takenaka	(Depertment of Gastric Surgery, National Cancer Center Hospital, Tokyo, Japan)

Open versus minimally invasive gastrectomy for large type 3 and type 4 gastric cancer: a multicenter retrospective study

Speaker	Motonari Ri	(Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan)

Significance of non-splenectomy, home enteral nutrition and long-term adjuvant chemotherapy in Type4 gastric cancer

Speaker	Hiroyuki Kanazawa	(Department of Digestive Surgery, Japan Red Cross Kyoto Daiichi Hospital, Kyoto, Japan / Division of Surgery, Department of Digestive Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan)

Symposium
Current Status and Issues in the Pathological Classification of Gastric Cancer: Updates in WHO Classification and revisions in Japanese Classification of Gastric Carcinoma

Thursday, March 59:30–11:00
Room 3 (A2, 1st Floor, Conference Building A, Okinawa Convention Center)

Chair	Tetsuo Ushiku	(Department of Pathology, The University of Tokyo)
	Chika Kusano	(Department of Gastroenterology, Kitasato University School of Medicine)

Speaker	Shigeki Sekine	(Department of Pathology, Keio University, School of Medicine)

Updates on Gastric Carcinoma Classification in the 16th Japanese and 6th WHO Classifications

Speaker	Ryoji Kushima	(Department of Pathology, Shiga University of Medical Science)

Issues for revision of the Japanese Classification of Gastric Carcinoma: from surgeons’ viewpoint

Speaker	Takeshi Sano	(Department of Gastroenterological Surgery, Cancer Institute Hospital of JFCR, Tokyo, Japan)

Current Status and Issues in the Pathological Classification of Gastric Cancer---Endoscopic Aspect

Speaker	Noriya Uedo	(Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan)

Updates in WHO and Revisions in Japanese Classifications of Gastric Cancer: Insights from a Medical Oncology Perspective

Speaker	Keisho Chin	(Department of Gastroenterology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan.)

Symposium
Perioperative Nutritional Management in Gastric Cancer: Standardization and Personalization"

Thursday, March 515:10–16:40
Room 7 (1st Floor, Ginowan City Gymnasium)

Chair	Naoki Hiki	(Department of Upper Gastrointestinal Surgery, Kitasato University School of Medicine)
	Hiroshi Imamura	(Department of Gastroennterological Surgery, Toyonaka Municipal Hospital)

Perioperative nutritional management for postoperative inflammation: the impact of immunonutrition

Speaker	Ryota Matsui	(Department of Gastrointestinal Surgery, Kanazawa University, Kanazawa, Japan)

Rikkunshito in Perioperative Nutritional Care for Gastric Cancer: From Standardized to Personalized Approaches

Speaker	Kenichi Iwasaki	(Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University)

Nutritional support with HMB, glutamine, and arginine shortens healing time of anastomotic leakage after gastrectomy

Speaker	Akimitsu Iizuka	(Division of Gastrointestinal Surgery, Department of Surgery, Nagoya University Hospital, Nagoya, Japan)

Significance of Oral Nutritional Supplementation after Gastrectomy

Speaker	Suguru Maruyama	(Department of Surgery, University of Yamanashi, Yamanashi, Japan)

Oral Nutritional Supplement After Gastrectomy: Insights and Challenges from Randomized Controlled Trials

Speaker	Kohei Ueno	(Department of Surgery, Kyoto University Hospital, Kyoto, Japan)

Clinical Impact of Night Home Enteral Nutrition on Malnutrition, Sarcopenia, and Prognosis Following Total Gastrectomy

Speaker	Tomoki Konishi	(Department of Surgery, Japanese Red Cross Kyoto Daiichi Hospital)

Effect of Prehabilitation in elderly patients with gastric cancer: Who benefits most?

Speaker	Kazuyoshi Yamamoto	(Department of Gastroenterology, Osaka International Cancer Institute, Osaka, Japan)

Impact of perioperative nutritional and exercise therapy on skeletal muscle mass in elderly gastric cancer patients

Speaker	Keiichi Fujiya	(Division of Gastric Surgery, Shizuoka Cancer Center, Shizuoka, Japan)

Symposium
Who should administer pharmacotherapy for gastric cancer ?

Thursday, March 516:50–18:20
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Yasuhiro Kodera	(Department of Gastroenterological Surgery, NHO Nagoya Medical Center)
	Kei Muro	(Aichi Cancer Center Hospital)

Special Remarks	Yuu Sakata	(Honorary Director, Misawa City Hospital)

The significance of surgeons administering chemotherapy

Keynote Lecture	Hiroshi Imamura	(Department of Gastroentelorogy, Toyonaka Municipal Hospital, Osaka, Japan)

Trends in Systemic Anticancer Therapy and Provider Transition in Advanced Gastric Cancer at Nagoya Medical Center

Speaker	Keiji Sugiyama	(Department of Medical Oncology, NHO Nagoya Medical Center, Nagoya, Japan)

Treatment Outcome for Advanced and Recurrent Gastric Cancer Administered by Surgeons in Our Department

Speaker	Tetsuro Kawazoe	(Department of Surgery and Science, Kyushu University, Fukuoka, Japan)

Current status of chemotherapy for advanced gastric cancer: A departmental comparison at a single institution

Speaker	Hidenori Akaike	(Department of Gastrointestinal Surgery, Yamanashi Kosei Hospital, Yamanashi, Japan)

The contributions in pharmacotherapy surgeons can make to patients with gastric cancer: what kind of surgeon is the best

Speaker	Teppei Yamada	(Department of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan)

Current Status of Pharmacotherapy for Gastric Cancer in Regional Areas: Collaborative Medical Efforts in Kagoshima

Speaker	Takaaki Arigami	(Department of Digestive Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan)

Symposium
Therapeutic Strategies for Gastric Cancer with Peritoneal Metastasis: From Systemic Chemotherapy to Intraperitoneal Chemotherapy and Surgery

Thursday, March 516:50–18:20
Room 2 (A1, 1st Floor, Conference Building A, Okinawa Convention Center)

Chair	Mitsuro Kanda	(Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine)
	Hiroki Hara	(Department of Gastroenterology, Saitama Cancer Center)

Intraperitoneal Chemotherapy and Conversion Surgery in Gastric Cancer with Peritoneal Metastasis

Speaker	Hiroharu Yamashita	(Department of Surgery, Division of Gastroenterological, General and Transplant Surgery, Jichi Medical University, Shimotsuke, Japan)

Treatment Strategy for Gastric Cancer with Severe Peritoneal Metastases

Speaker	Toshiki Masuishi	(Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan)

Treatment Strategies and Outcomes of CY1 Gastric Cancer: A Multicenter Retrospective Study

Speaker	Yasunori Masuike	(Department of Gastroenterological Surgery, Osaka International Cancer Institute)

Long-term Outcomes of Conversion Surgery for Peritoneal Dissemination-positive Gastric Cancer after Staging Laparoscopy

Speaker	Yoshiyuki Kiyasu	(Department of Surgery, Kyoto University Hospital, Kyoto, Japan)

Efficacy of immune checkpoint inhibitors for gastric cancer with peritoneal dissemination

Speaker	Maho Takuwa	(Department of Gastric Surgery, National Cancer Center Hospital, Tokyo, Japan)

Prognostic factors in gastric cancer patients with peritoneal metastasis who underwent intraperitoneal chemotherapy

Speaker	Kozo Miyatani	(Division of Gastrointestinal and Pediatric Surgery, Department of Surgery, School of Medicine, Tottori University Faculty of Medicine, Tottori, Japan)

Treatment strategies for peritoneal dissemination of gastric cancer with massive ascites

Speaker	Keisuke Matsusaki	(Ascites Treatment Center, Kanamecho Hospital)

Exploration of therapeutic targets for peritoneal dissemination in gastric cancer using single-cell RNA sequencing

Speaker	Hiroyuki Minoura	(Division of Advanced Surgical Oncology, Center for Development of Advanced Medicine, Kitasato University School of Medicine, Kanagawa, Japan)

Symposium
Frontline of New Drug Development – Expectations for Gastric Cancer

Thursday, March 516:50–17:50
Room 4 (B1, 2nd Floor, Conference Building B, Okinawa Convention Center)

Chair	Takako Nakajima	(Department of Early Clinical Development, Kyoto University Graduate School of Medicine)
	Do-Youn Oh	(Medical Oncology, Internal Medicine, Seoul National University Hospital, Korea, Seoul)

Current Therapeutic Targets in Gastric Cancer: What’s the Next in New Drug Development?

Speaker	Do-Youn Oh	(Medical Oncology, Seoul National University Hospital)

Emerging Therapeutic Targets and Drug Development in Gastric Cancer: Emphasis on Immunotherapy

Speaker	Min-Hee Ryu	(Department of Oncology, Asan Medical Center, University of Ulsan college of Medicine, Republic of Korea)

CAFs-Associated Genes Analysis Reveals Malignant Circuit and Prognostic Impact in Gastric Cancer

Speaker	Keishi Yamashita	(Division of Advanced Surgical Oncology, Department of Comprehensive Medicine, Research and Development Center for New Medical Frontiers, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan)

Ligase-Dependent Conjugation and Stable Ring-Opening Linker Enable Next-Generation HER2 ADCs with Improved Safety and Antitumor Activity in Gastric Cancer

Speaker	Lei Huang	(National Key Laboratory of Immunity and Inflammation, National Clinical Research Center for Digestive Diseases / Changhai Clinical Research Unit, Department of Gastroenterology, The First Affiliated Hospital of Naval Medical University/Changhai Hospital, Naval Medical University)

Zongertinib in HER2-altered gastrointestinal cancers: preclinical activity and clinical findings from a Phase Ia study

Speaker	Izuma Nakayama	(Department of Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa-shi)

Symposium
The latest diagnosis and treatment of GIST in 2026

Thursday, March 516:50–17:50
Room 7 (1st Floor, Ginowan City Gymnasium)

Chair	Yoshito Komatsu	(Department of Cancer Center, Hokkaido University Hospital)
	Noriya Uedo	(Department of Gastrointestinal Oncology, Osaka International Cancer Institute)

Therapeutic Outcomes of Endoscopic Full-Thickness Resection for Gastric GISTs

Speaker	Muneshin Morita	(Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan / Department of Gastroenterology and Hepatology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan)

Surgical Strategies for Gastric GIST Based on Tumor Location and Type of Growth Type

Speaker	Takeharu Enomoto	(Department of Gastroenterological and General Surgery, St. Marianna University School of Medicine, Kanagawa, Japan)

Recurrence risk and prognostic factors in high-risk GIST treated with adjuvant imatinib: A multicenter study

Speaker	Hiroshi Ichikawa	(Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences)

Best Practices for GIST Treatment with Limited Surgery and a Multidisciplinary Approach

Speaker	Hirotoshi Kikuchi	(Department of Surgery, Hamamatsu UniversitySchool of Medicine, Hamamatsu, Japan)

Optimal treatment strategy for metastatic/recurrent GIST

Speaker	Takahiro Toyokawa	(Department of Gastroenterological Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan)

Genomic Insights Reshaping GIST Therapy: A Prospective Multicenter Study of Unresectable and Recurrent Tumors

Speaker	Tsuyoshi Takahashi	(Department of Gastroenterological Surgery, graduate school of medicine, The University of Osaka, Suita, Japan / Department of Gastroenterological Surgery, Sakai city medical center, Sakai, Japan)

Symposium
Perioperative chemotherapy for resectable gastric cancer

Friday, March 68:00–9:30
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Kensei Yamaguchi
	Takeshi Omori	(Department of Gastroenterological Surgery, Osaka International Medical and Science Center, Osaka Keisatsu Hospital)

Development of Perioperative Chemotherapy for Gastric Cancer: Perspectives from Medical Oncologists

Speaker	Daisuke Takahari	(Department of Medical Oncology, Gunma University Graduate School of Medicine, Maebashi, Japan)

Adjuvant chemotherapy and introduction of D-FLOT in Japan

Speaker	Takaki Yoshikawa	(Department of Gastric Surgery, National Cancer Center Hospital, Tokyo, Japan)

Perioperative chemotherapy for gastric cancer

Speaker	Eishi Baba	(Department of Comprehensive Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan)

Perioperative Treatment of Gastric Cancer - Future Directions of the JCOG Stomach Cancer Study Group

Speaker	Yukinori Kurokawa	(Department of Gastroenterological Surgery, The University of Osaka, Osaka, Japan)

The effect of preoperative chemotherapy on surgical treatment for gastric cancer

Speaker	Takahiro Kinoshita	(Department of gastric surgery, National Cancer Center Hospital East, Kashiwa, Japan)

Symposium
Biomarker Driven Therapy

Friday, March 68:00–9:30
Room 4 (B1, 2nd Floor, Conference Building B, Okinawa Convention Center)

Chair	Takeshi Kuwata	(Department of Genetic Medicine and Services, National Cancer Center Hospital East)

Biomarker-Driven Therapies in Gastric Cancer

Speaker	Florian Lordick	(Department of Oncology, University of Leipzig Medical Center)

Biomarker-directed targeted therapies in gastric cancer

Speaker	Hyung-Don Kim	(Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Republic of Korea)

Biomarker-driven therapies in gastric cancer:HER2 and emerging target FGFR2b

Speaker	Sun Young Rha	(Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul Korea)

Symposium
Issues of medical finance and fee for gastric cancer treatment

Friday, March 68:00–9:30
Room 6 (1st Floor, Ginowan City Gymnasium)

Chair	Toshiharu Yamaguchi	(Department of Gastric Surgery, Cancer Institute Hospital)
	Yasuyuki Seto	(Division of gastric surgery, National Cancer Center Hospital)

Special Remarks	Kazunari Asanuma	(President, National Institute of Public Health)

Cancer Care Equity and Sustainable Universal Health Coverage: From the Perspective of Health Inequalities

Keynote Lecture	Yuri Ito	(Department of Medical Statistics, Faculty of Medicine, Osaka Medical and Pharmaceutical University, Osaka, Japan)

Current Status of Surgical Treatment and Economic Challenges in Gastric Cancer Care: A Policy-Based Perspective

Speaker	Masashi Nishino	(Medical Economics Division, Ministry of Health, Labour and Welfare)

Robot-Assisted Surgery for Gastric Cancer: Current Status, Short-Term Outcomes, and Cost-Effectiveness

Speaker	Shunya Hanzawa	(Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan)

The financial impact of robotic surgery for gastric cancer

Speaker	Yoshihiro Hiramatsu	(Department of Perioperative Functioning Care and Support, Hamamatsu University School of Medicine / Department of Surgery, Hamamatsu University School of Medicine)

Cost Optimization and Reimbursement Challenges in Robot-Assisted Gastrectomy: Comprehensive Strategy with Fusion Surgery

Speaker	Yusuke Matsumoto	(Department of Surgery, Japanese Red Cross Society Himeji Hospital, Hyogo, Japan)

Postoperative Financial Toxicity in Patients Underwent Surgery for Gastrointestinal Cancers in Japan

Speaker	Yuki Hirata	(Department of Surgery, National Hospital Organization, Tokyo Medical Center, Tokyo, Japan)

Symposium
From Diagnosis to Treatment of Special Type Gastric Tumors (NETs and NECs)

Friday, March 68:00–9:30
Room 7 (1st Floor, Ginowan City Gymnasium)

Chair	Koji Kono	(Department of Gastrointestinal Tract Surgery, Fukushima Medical University)
	Ayumu Hosokawa	(Department of Clinical Oncology, University of Miyazaki Hospital)

Meta-analysis of Lymph Node Metastasis Risk in Gastric Neuroendocrine Tumors

Speaker	Rina Torigoe	(Division of Gastroenterology, Department of Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan)

Surgical treatment and clinical significance of lymph node dissection in locoregional gastric neuroendocrine carcinoma

Speaker	Yukinori Yamagata	(Department of Gastric Surgery, National Cancer Center Hospital)

Comparison of Nivolumab Plus Chemotherapy and EP/EC Regimens in Advanced Gastric and GEJ Neuroendocrine Carcinoma.

Speaker	Hiroshi Nakanoma	(Department of Gastroenterology, Kanagawa Cancer Center, Yokohama, Japan)

Current Status and Recent Advances in Chemotherapy for Gastrointestinal Neuroendocrine Carcinoma

Speaker	Yuki Matsubara	(Department of Gastroenterology & Gastrointestinal Oncology National Cancer Center Hospital East)

The Evolution of NET/NEC Treatment Strategies

Speaker	Chigusa Morizane	(Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital)

Symposium
Cutting-Edge Robotic Surgery: The Next Frontier

Friday, March 69:40–11:10
Room 4 (B1, 2nd Floor, Conference Building B, Okinawa Convention Center)

Chair	Ichiro Uyama	(Adavnced Robotic and Edoscopic Surgery, Fujita JHealth University)
	Kazuyuki Kojima	(Upper Gastrointestinal Surgery, Dokkyo Medical University)

How to Deliver Medical Technology Innovations to Clinical Practice Safely

Speaker	Shigeo Hisamori	(Department of Surgery)

Novel hybrid surgery for distal gastrectomy using MILAR system using the da Vinci SP surgical system

Speaker	Tsutomu Hayashi	(Department of Gastric Surgery, National Cancer Center Hospital)

Cardia-Preserving Gastrectomy (CPG) for Upper Early Gastric Cancer: Short-Term Outcomes and the Role of Robot Assistance

Speaker	Takashi Mitsui	(Dokkyo Medical University Saitama Medical Center)

Short- and Long-Term Outcomes of Robot-Assisted vs Laparoscopic Gastrectomy: Propensity Score-Matched Analysis

Speaker	Motonari Ri	(Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research)

Preliminary exploration of telesurgery applied in the field of gastric surgery

Speaker	Zhen Cao	(Department of General Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing, China)

Robotic surgery for gastric cancer - the path to insurance coverage and clinical implementation of new surgical robots

Speaker	Koichi Suda	(Divisions of GI & HPB Surgery, Department of Surgery, Fujita Health University, Toyoake, Japan / Collaborative Laboratory for Research and Development in Advanced Surgical Intelligence, Fujita Health University, Toyoake, Japan)

Symposium
Toward the JGCA Board-Certification System

Friday, March 69:40–11:10
Room 6 (1st Floor, Ginowan City Gymnasium)

Chair	Yoshihiro Kakeji	(Division of Gastrointestinal Surgery, Department of Surgery, Kobe University)
	Noriyuki Inaki	(Department of Gastrointestinal Surgery, Kanazawa University)

Establishment of the JGCA Certified institutions and perspectives of board certified member.

Keynote Lecture	Yoshiyuki Fujiwara	(Division of Gastrointestinal and Pediatric Surgery, Department of Surgery, Tottori University)

Report on the results of member survey regarding the establishment of a board certification system in the JGCA

Keynote Lecture	Hiroshi Saeki	(Department of General Surgical Science, Gunma University, Maebashi, Japan)

An Endoscopist Perspective on the Specialist Certification System of the JGCA

Speaker	Chika Kusano	(Department of Gastroenterology, Kitasato University School of Medicine, Kanagawa, Japan)

Designing a Desirable Board-Certification System in Gastric Cancer: A Medical Oncologist’s Perspective

Speaker	Yukiya Narita	(Department of Clinical Oncology, Aichi Cancer Center Hospital, Nagoya, Japan)

Current Status and Challenges in Establishing the JGCA Board-Certification System: A Surgical Perspective

Speaker	Tsuyoshi Etoh	(Gastroenterological Surgery, Oita University Faculty of Medicine, Oita University, Oita, Japan)

Board-certified gastric cancer specialists - from a pathologist’s perspective-

Speaker	Takeshi Kuwata	(Department of Genetic Medicine and Services, National Cancer Center Hospital East, Chiba, Japan)

The Current State and Challenges of Accredited Institutions in the Board Certification System of the JGCA

Speaker	Takahisa Yamaguchi	(Department of Gastroenterological Surgery, Ishikawa Prefectural Central Hospital)

Symposium
Gastric Cancer Management in the H. pylori-Negative Era

Friday, March 612:40–14:10
Room 7 (1st Floor, Ginowan City Gymnasium)

Chair	Tadateru Maehata	(Division of Gastroenterology, Department of Internal Medicine , St. Marianna University School of Medicine)
	Hiroya Ueyama	(Department of Gastroenterology, Juntendo University Faculty of Medicine)

Current status and challenges of gastric cancer after H. pylori eradication

Speaker	Masaaki Kobayashi	(Division of Gastroenterology, Niigata Cancer Center Hospital, Niigata, Japan)

Clinicopathological characteristics of H.pylori-naive advanced gastric cancer

Speaker	Daisuke Yoshimura	(Division of Gastroenterology, NHO Kyushu Medical Center / Division of Gastroenterology, Saiseikei Fukuoka General Hospital)

Investigation of clinicopathological characteristics of H.pylori-uninfected gastric cancer

Speaker	Takashi Morise	(Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, Tokyo, Japan)

Genetic analysis of Helicobacter pylori-uninfected differentiated gastric cancer focusing on tumor development

Speaker	Mitsuhiro Nikaido	(Department of Gastroenterology, Tenri Hospital, Nara, Japan / Department of Gastroenterology and Hepatology, Kyoto University Hospital, Kyoto, Japan)

Consideration of the validity of diagnostic UEMR for raspberry-shaped gastric cancer

Speaker	Tomoki Kanemura	(Division of Endoscopy, Department of Gastroenterology, Yokohama Cuty University Medical Center, Yokohama, Japan)

Clinicopathological Features of Coexisting Common-type Gastric Carcinoma and Gastric Adenocarcinoma of Fundic-gland Type

Speaker	Erika Uchida	(Department of Gastroenterology and Hepatology, National Kohnodai Medical Center)

Clinicopathological Features of Gastric Adenocarcinoma of Fundic Gland Mucosa Type: Comparison with Fundic Gland Type

Speaker	Sunao Akiyama	(Center for Diagnostic and Therapeutic Endoscopy, Kashiwa Kousei General Hospital, Chiba, Japan. / Department of Human Pathology, Juntendo University Graduate School of Medicine, Tokyo)

Endoscopic and clinicopathological features of adenocarcinoma of fundic gland mucosa type

Speaker	Shunsuke Nakamura	(Department of Gastroenterology, Juntendo University Faculty of Medicine)

Clinical characteristics and diagnostic ESD of Helicobacter Pylori negative gastric MALT lymphoma

Speaker	Ryohei Obata	(Department of Gastroenterology and Hepatology, School of medicine, Kyoto prefectural university of medicine, Kyoto, Japan)

Gastric adenocarcinoma with enteroblastic diferentiation resected by endoscopic submucosal dissection

Speaker	Tsunetaka Kato	(Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan)

Risk stratification of primary gastric cancer after H. pylori eradication by DNA methylation

Speaker	Harumi Yamada	(Department of Epigenomics, Institute for Advanced Life Sciences, Hoshi University, Tokyo, Japan / Department of Surgery, Kyoto University, Kyoto, Japan)

A novel prediction tool for the risk of metachronous gastric cancer for gastric ESD followed by H. pylori eradication

Speaker	Kimiko Kayada	(Division of Gastroenterology, Tohoku University Graduate School of Medicine, Miyagi, Japan / Tohoku GI study group)

Symposium
Evidence for gastric cancer chemotherapy: present and future

Friday, March 614:20–15:50
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Narikazu Boku	(Department of Oncology and General Medicine, IMSUT Hospital, Institute of Medical Science, University of Tokyo)
	Taroh Satoh	(Center for Cancer Genomics and Precision Medicine, The University of Osaka Hospital)

Dawn of clinical trials for advanced gastric cancer in Japan, focusing on JCOG trials

Speaker	Narikazu Boku	(Department of Oncology and General Medicine, IMSUT Hospital, Institute of Medical Science, University of Tokyo)

Progress and Future Perspectives of Advanced Gastric Cancer Chemotherapy by Clinical Trial Groups in Japan

Speaker	Hisato Kawakami	(Department of Clinical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan)

Toward global clinical trials of new agent development for gastric cancer

Speaker	Atsushi Ohtsu	(Research Unit, Japanese Foundation for Cancer Research, Tokyo, Japan)

Recent trends and future prospects of global gastric cancer trials

Speaker	Kensei Yamaguchi	(Department of Gastroenterological Chemotherapy Cancer Institute Hospital of Japanese Foundation for Cancer Research)

Panel Discussion

Panel Discussion
Conversion Surgery and Chemotherapy — A Timely Reappraisal

Thursday, March 58:00–9:30
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Izuma Nakayama	(Department of Gastrointestinal Oncology, National Cancer Center Hospital East)
	Itaru Yasufuku	(Department of Clinical Anatomy Development Studies, Gifu University Graduate School of Medicine)

Sub-analysis of Japanese patients of international multicenter retrospective study on conversion surgery (CONVO-GC-1)

Speaker	Kenichiro Furukawa	(Division of Gastric Surgery, Shizuoka Cancer Center, Shizuoka, Japan)

Optimal extent in conversion surgery -Lessons from JCOG2212A for para-aortic nodal metastasis

Speaker	Takeyuki Wada	(Department of Gastric Surgery, National Cancer Center Hospital)

Key Lectures for Advanced Gastric Cancer

Speaker	Keitaro Shimozaki	(Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of JFCR)

Current Status of MRD Detection Using High-Sensitivity ctDNA Assays in Gastric Cancer

Speaker	Hashimoto Tadayoshi	(Department of Gastrointestinal Oncology / Translational Research Support Office, National Cancer Center Hospital East, Chiba, Japan)

Conversion surgery after the introduction of ICI-real world data focusing on elderly patients (OGSG2301)-

Speaker	Yuichiro Miki	(Department of Gastroenterological Surgery, Osaka Metropolitan University, Osaka, Japan)

Minimally Invasive Conversion Surgery for Stage IV Gastric Cancer: Impact of ICI-based Chemotherapy

Speaker	Jun Kinoshita	(Department of Gastrointestinal Surgery, Kanazawa University, Ishikawa, Japan)

Panel Discussion
Current Challenges in Endoscopic Diagnosis of Gastric Cancer

Thursday, March 58:00–9:30
Room 2 (A1, 1st Floor, Conference Building A, Okinawa Convention Center)

Chair	Kenshi Yao	(Department of Endoscopy, Fukuoka University Chikushi Hospital)
	Kohei Takizawa	(Department of Gastroenterology, Kanagawa Cancer Center)

Gastric Cancer Diagnosis: Current Status and Future Perspectives

Keynote Lecture	Kunihisa Uchita	(Kochi RedCross Hospital Department of Gastroenterlogy)

Mucosal biopsy diagnosis of epithelial neoplasia in Helicobacter pylori-negative stomach

Keynote Lecture	Satoshi Nimura	(Division of Diagnostic Pathology, Fukuoka University Chikushi Hospital, Fukuoka, Japan)

Pilot Study Comparing Endoscopic Diagnostic Performance Between EGC After H.pylori Eradication and Current Infection

Speaker	Takayuki Hirase	(Department of Gastroenterology, Fukuoka University Chikushi Hospital)

Impact of Poorly Differentiated Component on ESD Curability in Undifferentiated Early Gastric Cancer

Speaker	Haruka Ito	(Departoment of Upper GI Medicine, Cancer Institute of Japanese Foundation for Cancer Research, Tokyo, Japan)

Comparative diagnostic performance of white-light and third-generation narrow-band imaging in early gastric cancer

Speaker	Susumu Banjoya	(Department of Gastrointestinal Endoscopy, NTT Medical Center Tokyo, Tokyo, Japan)

Diagnostic performance of magnifying endoscopy with third-generation narrow-band imaging for early gastric cancer

Speaker	Nobuhisa Minakata	(Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan / Department of Gastroenterology, Kanagawa Cancer Center, Kanagawa, Japan)

Challenges in Histopathological Diagnosis of Borrmann Type IV Gastric Cancer and Alternatives to Forceps Biopsy

Speaker	Kimio Nozaki	(Department of Endoscopy, Yokohama City University Medical Center, Yokohama, Japan)

Endoscopic Mucosal Incision Biopsy with Rapid Diagnosis for Diffuse Infiltrative Gastric Cancer

Speaker	Ryousuke Kawanishi	(Department of Gastroenterology & Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan)

Assessment of Tumor Stiffness for Gastric Cancer Diagnosis Using Laser Resonance Frequency Analysis

Speaker	Tasuku Furube	(Department of Surgery, School of Medicine, Keio University, Tokyo, Japan)

Panel Discussion
Gastric Cancer Surgery in the Elderly: Risk Assessment and Tailored Strategies

Thursday, March 58:00–9:00
Room 6 (1st Floor, Ginowan City Gymnasium)

Chair	Hiroshi Saeki	(Department of General Surgical Science, Gunma University)
	Mitsuro Kanda	(Department of Gastroenterological Surgery, Nagoya University Graduate School of Medicine)

Significance and Limitations of Surgical Treatment for Gastric Cancer in Patients Aged 80 Years and Older

Speaker	Tohru Nishimura	(Department of Surgery, Kakogawa City Hospital, Hyogo, Japan)

Frailty Assessment in Elderly Gastric Cancer Patients and Perioperative Management

Speaker	Katsunobu Sakurai	(Department of Gastroenterological Surgery, Osaka City General Hospital, Osaka, Japan)

Predicting Surgical Failure in Elderly Gastrectomy Patients Using the NCD Risk Calculator

Speaker	Shirou Kuwabara	(Department of Digestive Surgery, Niigata City General Hospital)

Surgical education and short-term treatment outcomes for elderly patients aged 80 years or older

Speaker	Hisahiro Hosogi	(Department of Surgery, Japanese Red Cross Osaka Hospital)

The impact of sex differences and circulating sex hormone levels in elderly patients with gastric cancer.

Speaker	Hiroshi Arakawa	(Division of Digestive Surgery, Maizuru Kyosai Hospital, Kyoto, Japan)

The usefulness of surgical treatment for elderly, high-risk gastric cancer patients

Speaker	Haruka Nagamori	(Dept. of Digestive Surgery, Japanese Red Cross Kyoto Daiichi Hospital)

Survival outcomes in elderly patients with resectable gastric cancer treated with best supportive care

Speaker	Taku Hattori	(Division of gastric surgery, Shizuoka cancer center)

Panel Discussion
Challenges and Pitfalls in Endoscopic Diagnosis and Treatment for Early Gastric Cancer.

Thursday, March 59:30–11:00
Room 8 (1st Floor, Ginowan City Gymnasium)

Chair	Hiroyuki Ono	(Endoscopy Division, Shizuoka Cancer Center)
	Daisuke Kikuchi	(Department of Gastroenterology, Toranomon hospital Kajigaya/ GIE clinic)

MANTIS Clip closure to prevent post-gastric ESD bleeding in patients on antithrombotic therapy

Speaker	Eiichiro Yokoyama	(Division of Endoscopy, Shizuoka Cancer center, Shizuoka, Japan)

A Retrospective Study of a Simple Closure Technique for the Prevention of Post-Gastric ESD Bleeding

Speaker	Norihiro Suzuki	(Endoscopy Division, Saitama Cancer Center, Saitama, Japan)

A novel closure technique for a mucosal defect after gastric endoscopic submucosal dissection: CONTROLL

Speaker	Yorinari Ochiai	(Department of Gastroenterology, Toranomon Hospital, Tokyo, Japan)

Double-arm-bar and anchor-pronged clip closure reduces delayed bleeding after gastric ESD under antithrombotic therapy

Speaker	Yasunori Yamamoto	(Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Ehime, Japan)

A Novel Clip-Only Closure to Prevent Post-ESD Bleeding:Utility of the Underwater Muscle Inversion Clip Closure Technique

Speaker	Kosuke Maehara	(Department of Gastroenterology,Kitakyushu Municipal Medical Center)

Efficacy and Safety of Salvage ESD for Early Gastric Cancer with Positive Horizontal Margins

Speaker	Toshifumi Iida	(Department of Gastroenterology, Japanese Red Cross Omori Hospital, Tokyo, Japan)

A Case of GIST that can be treated in a minimally invasive manner

Speaker	Shunsuke Kanazawa	(Divison of Gastroenterology, Japanese Red Cross Kochi Hospital, Kochi, Japan)

Traction-assisted ESD using a novel elastic silicone ring: Endo Silicone Loop Band (ESLB)

Speaker	Yasutoshi Ochiai	(Department of Gastroenterology, Kawasaki Municipal Tama hospital, St. Marianna University School of Medicine, Kanagawa, Japan)

A Novel treatment strategy for wound closure in ER beyond the muscularis layer for gastric SMT (Four cases of EHS)

Speaker	Hirohisa Takeuchi	(Department of Gastroenterological and General Surgery, Faculty of Medicine, Kyorin University, Tokyo, Japan)

Feasibility of a low-cost closing method using clip with thread of post endoscopic submucosal dissection ulcer

Speaker	Ryosuke Ikeda	(Department of Gastroenterology, Yokohama City University Graduate School of Medicine)

Modified Double-layered Suturing ("Origami" Method) for Mucosal Defects After Gastric ESD

Speaker	Maya Ishizawa	(Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan / Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyo, Japan)

Experience with Suture Closure Using Dual Action Tissue (DAT) Clips for Post-Gastric ESD Ulcers

Speaker	Akitoshi Hakoda	(2nd Department of Internal Medicine, Gastroenterology, Osaka Medical and Pharmaceutical University, Osaka, Japan)

Efficacy of Over-The-Scope-Clip for delayed perforation following gastric endoscopic submucosal dissection

Speaker	Tomoki Uehara	(Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan)

Troubleshooting of Intraoperative Perforation during Gastric ESD using Endoscopic Ligation with O-ring Closure

Speaker	Serika Yotsumoto	(Post Graduate Clinical Education center, Kagawa University Hospital, Kagawa, Japan)

Panel Discussion
Present and future perspective of AI/Digital Pathology

Thursday, March 515:10–16:40
Room 4 (B1, 2nd Floor, Conference Building B, Okinawa Convention Center)

Chair	Tetsuo Ushiku	(Department of Pathology, The University of Tokyo)
	Shumpei Ishikawa	(Department of Preventive Medicine / Division of Pathology, The University of Tokyo / National Cancer Center)

Practical Implementation of Digital Pathology in Routine Diagnostic Practice

Speaker	Hiroshi Kawachi	(Deparment of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan)

Quantitative Analysis of Histogenomic Diveristy of Gastric Cancer

Speaker	Shumpei Ishikawa	(Department of Preventive Medicine, The University of Tokyo / Division of Pathology, National Cancer Center)

Aberrant differentiation status in tumor cells and tumor microenvironment elucidated by spatial multiomics analysis

Speaker	Ayako Suzuki	(Graduate School of Frontier Sciences, The University of Tokyo)

Panel Discussion
Considering education in endoscopic care from the perspective of mentor and mentee

Thursday, March 515:10–16:40
Room 6 (1st Floor, Ginowan City Gymnasium)

Chair	Hideki Kobara	(Department of Gastroenterology and Neurology, Kagawa University)
	Kunihisa Uchita	(Department of gastroenterology, Kochi redcross hospital)

Special Remarks	Yoshinori Morita	(Department of Medical Device Engineering, Kobe University)

Improving Basic Endoscopic Skills Education: A Multilingual Approach Toward Global Standards

Keynote Lecture	Shuichi Miyamoto	(Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Japan.)

Advancing mentee education through the adoption of medical digital transformation (DX)

Speaker	Keiji Yoneda	(Gastroenterology and Hepatology, Kyoto Saiseikai Hospital, Kyoto, Japan)

Rethinking Basic Education in the Era of Advanced Endoscopy ~The Value of Stepwise Education for Young Physician~

Speaker	Ayako Yokogawa	(Gastroenterology, Kochi Red Cross Hospital, Kochi, Japan)

Construction of ESD Skill Evaluation Metrics Through Multicenter Expert Consensus Using a Modified Delphi Method

Speaker	Haruki Yamamoto	(Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan)

Learning Steps for Mastering OTSC Closure Techniques and Efforts for Convenient Simplification

Speaker	Kaho Nakatani	(Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University)

Scissor-type knife improves trainee’s self-completion of endoscopic submucosal dissection for early gastric cancer

Speaker	Hayato Fukui	(Department of Gastroenterology and Hepatology, Fukuchiyama city hospital, Fukuchiyama, Japan / Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan)

Effectiveness of next-generation endoscopy training simulator for improving foreign trainees’ ESD skills

Speaker	Abe Seiichiro	(Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan / Division of Science and Technology for Endoscopy, National Cancer Center Hospital, Tokyo, Japan)

Endoscopic education system responding to changes in examination rooms and work style reforms

Speaker	Takashi Yoshida	(Department of gastroenterology, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan)

Educational Impact of a Simple Remote Endoscopic Training System Using Commercial Devices and Web Platforms

Speaker	Tsubata Shiori	(Department of Gastroenterology and Hepatology, Kyorin University School of Medicine)

Endoscopy Training Enhanced by ICT: In-hospital Telementoring and Self-derected Video Training Platform

Speaker	Hirokazu Yamashita	(Gastroenterological Center, Yokohama City University Medical Center)

Panel Discussion
Facing the Surgeon Shortage: Sustainability and Solutions

Thursday, March 515:10–16:40
Room 9 (1st Floor, Ginowan City Gymnasium)

Chair	Yuichiro Doki	(Department of Gastroentrological Surgery, Osaka University)
	Yoshiyuki Fujiwara	(Department of Surgery, Faculty of Medicine, Tottori University)

Jichi Medical University’s initiatives for sustainable surgical care

Speaker	Hiroharu Yamashita	(Department of Surgery, Division of Gastroenterological, General and Transplant Surgery, Jichi Medical University, Shimotsuke, Japan)

Exploring Surgical Recruitment Strategies Based on the Reality of Clinical Residency Program at University Hospital

Speaker	Hajime Kashima	(Department of Gastroenterological Surgery, School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan / Center for Graduate Medical Education, Okayama University Hospital, Okayama, Japan)

Sustainable Recruitment and Education of Surgeons at Nagasaki University: Focusing on the Nagasaki RYOMA Project

Speaker	Junichi Arai	(Gastro-Esophageal Surgery, Department of Surgery, Nagasaki University, Nagasaki, Japan)

Strategy to secure young gastric surgeons at community hospitals: Enhancing educational systems and presenting goals

Speaker	Hiroshi Okabe	(Department of Gastroenterological Surgery, New Tokyo Hospital, Matsudo, Japan)

Challenges for the sustainability of the surgical team

Speaker	Toshiro Tanioka	(Department of Gastrointestinal Surgery, Institute of Science Tokyo)

Current status and challenges of a regional hospital delivering advanced specialized cancer treatment and emergency care

Speaker	Natsuru Sudo	(Division of Digestive Surgery, Niigata City General Hospital, Niigata, Japan)

Contribution to regional surgical care and surgeon’s technique through medical digital transformation

Speaker	Yohei Nagai	(Department of Surgery, Minamata City General Hospital and Medical Center, Kumamoto, Japan)

Potential of the multimodal generative AI "Surgical-VLM" for future surgical practice

Speaker	Jumpei Ikeda	(Department of Surgery, Keio University School of Medicine, Tokyo, Japan.)

Panel Discussion
Tumor Board Discussion Session -What’s Your Strategy?-

Friday, March 68:00–9:30
Room 2 (A1, 1st Floor, Conference Building A, Okinawa Convention Center)

Chair	Takaaki Arigami	(Department of Digestive Surgery, Kagoshima University Graduate School of Medical and Dental Sciences)
	Toshiaki Hirasawa	(Division of Gastroenterology, Cancer Institute Hospital, Japanese Foundation of Cancer Research)

Discussant	Eiji Oki	(CAMIT, Kyushu University)
	Hisatomo Ikehara	(Department of Gastroenterology, Kitasato University School of Medicine)
	Takayuki Ando	(Third Department of Internal Medicine, University of Toyama)

Treatment strategies for cT1b-cT2 gastric cancer : perspectives of endoscopists and surgeons

Speaker	Kazuo Shiotsuki	(Department of Gastroenterology, Kanagawa Cancer Cancer, Kanagawa, Japan)

Treatment Planning for Conversion Surgery in Stage IV Gastric Cancer: Indications and Timing

Speaker	Keiji Tsukahara	(Department of Gastric Surgery, The Cancer Institute Hospital of JFCR, Tokyo, Japan)

Role of Surgical Intervention in Biomarker-Defined Advanced Gastric Cancer

Speaker	Yoshitomo Yanagimoto	(Department of Gastroenterological Surgery, Osaka International Cancer Institute)

Panel Discussion
Strategy for Biomarker Driven Therapy

Friday, March 612:40–14:10
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Takeshi Kuwata	(Department of Genetic Medicine and Services, National Cancer Center Hospital East)
	Daisuke Takahari	(Department of Medical Oncology , Gunma University Graduate School of Medicine)

Therapeutic Strategies Guided by Cancer Genomics and Biomarkers: Insights from Pathology

Speaker	Tetsuo Ushiku	(Department of Pathology, The University of Tokyo)

Treatment strategies for advanced gastric cancer based on biomarkers

Speaker	Kensei Yamaguchi	(Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of Japanese Foundation for Cancer Research)

Biomaker-driven approaches for resectable gastroesophageal adenocarcinoma

Speaker	Izuma Nakayama	(Department of Gastrointestinal Oncology, National Cancer Ceter Hospital East, Kashiwa, Japan)

Panel Discussion
Surgical Strategies in Reconstruction After Proximal Gastrectomy: Balancing Function and Safety

Friday, March 612:40–14:10
Room 4 (B1, 2nd Floor, Conference Building B, Okinawa Convention Center)

Chair	Hiroya Takeuchi	(Department of Surgery, Hamamatsu University School of Medicine)
	Souya Nunobe	(Department of Gastric Surgery, Cancer Institute Hospital)

Optimized mSOFY Reconstruction After Proximal Gastrectomy: Technical Tips and Clinical Outcomes

Speaker	Yoshito Yamashita	(Department of Gastroenterological Surgery, Japanese Red Cross Wakayama Medical Center)

Outcomes of posterolateral fundoplication during esophagogastrostomy after proximal gastrectomy

Speaker	Masaru Komatsu	(Division of Digestive Surgery, Department of Digestive Surgery, Niigata Cancer Center Hospital, Niigata, Japan)

Esophagogastric delta-shaped anastomosis after proximal gastrectomy for upper third gastric cancer

Speaker	Hironori Kawada	(Hyogo Prefectural Amagasaki General Medical Center)

Innovative Reconstruction After Proximal Gastrectomy for Upper and EGJ Cancer: Outcomes of Non-Flap and SMART Techniques

Speaker	Shuhei Komatsu	(Department of Digestive Surgery, Kyoto First Red Cross Hospital, Kyoto, Japan / Department of Digestive Surgery, Kyoto Prefectural University of Medicine, Kyoyo, Japan)

Overcoming Reconstruction Challenges in Proximal Gastrectomy: Modified Kamikawa Method with Robotic Assistance

Speaker	Eiichiro Nakao	(Division of Upper G.I. Surgery, Department of Gastroenterological Surgery, Hyogo Medical University, Hyogo, Japan)

The surgical safety and technical optimization of arch-bridge anastomosis after laparoscopy-assisted proximal gastrectomy: an IDEAL stage 2a prospective cohort study

Speaker	Ziyu Li	(Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing, China)

Efficacy and Safety of a Novel Anti-Reflux Bio-flap Techniqu in Laparoscopic Proximal Gastrectomy for Proximal Gastric Cancer: A Retrospective Comparative Study

Speaker	LIN FAN	(The first affiliated hospital of Xi’an Jiaotong University)

Panel Discussion
Function-Preserving Surgery for Advanced Gastric Cancer: Striving for Cure and Quality of Life

Friday, March 614:20–15:50
Room 2 (A1, 1st Floor, Conference Building A, Okinawa Convention Center)

Chair	Tsuyoshi Etoh	(Gastroenterological Surgery/RCGLID, Oita University)
	Takahiro Kinoshita	(Department of Gastric Surgery, National Cancer Center Hospital East)

Appetite-Preserving Gastrectomy (APG) as a Function-Preserving Surgery for Esophagogastric Junction Cancer

Speaker	Koshi Kumagai	(Department of Upper Gastrointestinal Surgery, Kitasato University School of Medicine)

Significance of proximal gastrectomy for advanced gastric cancer: from the perspective of postoperative QOL surveys

Speaker	Akihiko Sano	(Department of General Surgical Science, Gunma University Graduate School of Medicine, Gunma, Japan)

Validity and Functional Significance of Proximal Gastrectomy for Advanced Upper Gastric Cancer

Speaker	Naoki Nishie	(Saitama Prefectural Cancer Center, Department of Gastrointestinal Surgery, Saitama, Japan)

Utility of Proximal Gastrectomy in the Treatment of Early and Advanced Gastric Cancer

Speaker	Satoshi Hamada	(Division of Surgery, Kyoto Prefectural University of Medicine)

Propensity Score-Matched Comparison of Proximal vs Total Gastrectomy for Advanced Upper Gastric Cancer

Speaker	Yosuke Kano	(Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan)

Function-Preserving Strategies for Advanced Upper Third Gastric Cancer: TG or PG? The Answer for Long-Term Prognosis

Speaker	Hayato Shimoyama	(Department of Gastroenterological Surgery, Toranomon Hospital, Tokyo, Japan)

Surgical outcome based on type of gastrectomy for upper-third advanced gastric cancer

Speaker	Takuya Hamakawa	(Department of Surgery, Osaka Rosai Hospital)

Outcomes of Function-Preserving Gastrectomy After Preoperative Chemotherapy

Speaker	Mitsumasa Yoshida	(Gastric Surgery Division, National Cancer Center Hospital East, Kashiwa, Japan)

Panel Discussion
Practical Approaches to Intraoperative Difficulties and Postoperative Complications

Friday, March 614:20–15:50
Room 6 (1st Floor, Ginowan City Gymnasium)

Chair	Hirokazu Noshiro	(Department of Surgery, Saga University)
	SangWoong LEE	(Department of General and Gastroenterological Surgery, Osaka Medical and Pharmaceutical University)

Risk Assessment and Outcomes of Gastrectomy in Gastric Cancer Patients with Liver Cirrhosis

Speaker	Atsushi Yasuda	(Department of Surgery, Kindai University Faculty of Medicine)

Application of a new fluorescent navigation surgery for the prevention of intraoperative and postoperative complications

Speaker	Kimiyasu Yamazaki	(Division of Gastroenterological & General Surgery, Department of Surgery, School of Medicine, Showa Medical University, Tokyo, Japan)

Impact of a camera port position adjustment in minimally invasive gastrectomy for patients with visceral fat obesity

Speaker	Makoto Hikage	(Division of Gastroenterologic Surgery, Tohoku Medical and Pharmaceutical University, Sendai, Japan)

Clinical outcomes of our liver retraction method for minimally invasive proximal gastrectomy

Speaker	Kota Sugiura	(Department of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation for Cancer Research)

Robotic gastrectomy for advanced gastric cancer after neoadjuvant chemotherapy

Speaker	Ken Yuu	(Department of surgery, BellLand Genreral Hospital)

The tips for safely performing robotic surgery on difficult gastric cancer cases

Speaker	Kazuhisa Ehara	(Gastric Surgery Division, Saitama Cancer Center)

Management of Challenging Reconstructive Cases: advantages of esophageal jejunal delta anastomosis after LTG

Speaker	Kaichiro Harada	(Department of Surgery, Hyogo prefectural Amagasaki general medical center)

Toward standardization of reconstruction choices and complication management in Esophagogastric Junction Cancer

Speaker	Yuya Tanaka	(Department of Surgery, Kurume University)

Treatment strategies for difficult-to-treat gastric cancer and prognosis prediction using the CARRY index

Speaker	Sachiko Kaida	(Department of Surgery, Shiga University of Medical Science)

Evaluation of Drain Amylase and CRP as Postoperative Complications after Gastric Cancer Surgery

Speaker	Keishi Okubo	(Department of Digestive Surgery, Graduate School of Medical Sciences, Kagoshima University)

Workshop

Workshop
Training Young Gastric Surgeons: From Tradition to Innovation

Thursday, March 58:00–9:30
Room 3 (A2, 1st Floor, Conference Building A, Okinawa Convention Center)

Chair	Shuji Takiguchi	(Department of Gstroenterological Surgery, Nagoya City University)
	Chie Tanaka	(Department of Surgery (Gastrointestinal Surgery), Nagoya University Hospital)

Special Remarks	Mitsuru Sasako	(Deoartment of Surgery, Yodogawa Christian Hospital)

Education in robotic gastric cancer surgery - Utilizing past assets in the robotic era -

Speaker	Etsuro Bando	(Shizuoka Cancer Center, Division of Gastric Surgery)

Early Involvement of Third-Year Residents in Robotic Gastrectomy at an Advanced Gastric Cancer: Predominant Center

Speaker	Haruka Shigemori	(Gastroenterological Surgery, Department of Surgery, Nagoya City University East Medical Center, Aichi, Japan)

Educational Practice of Gastric Cancer Surgery: Building a Systematic Training Program via Robotic Gastrectomy

Speaker	Hidehito Shibasaki	(Department of Gastroenterological Surgery, Saitama Red Cross Hospital, Saitama, Japan)

Development of a training system for young doctors in robot-assisted gastrectomy

Speaker	Shizuki Sugita	(Department of Surgery, Nagoya University Hospital)

Educational Value of Laparoscopic and Robotic Combined Gastrectomy (LARCS): A Propensity Score-Matched Analysis

Speaker	Tadashi Higuchi	(Department of Upper Gastrointestinal Surgery, Kitasato University School of Medicine, Sagamihara, Japan)

Tradition and Innovation in Training Next-Generation Gastric Surgeons: Role Sharing Surgery for Robotic Education

Speaker	Hiroyuki Sagawa	(Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan)

Task-shifted Robotic Distal Gastrectomy: A Propensity-matched Study on Safety and Educational Value

Speaker	Yuki Ushimaru	(Department of gastroenterological surgery, Osaka International Cancer Institute)

Training young gastric surgeons through multi-organ educational program aiming at early adoption of robotic gastrectomy

Speaker	Hiroshi Okabe	(Department of Gastroenterological Surgery, New Tokyo Hospital, Matsudo, Japan)

Workshop
Current Strategies for Managing Adverse Events in Novel Chemotherapy: Including irAEs and Zolbetuximab Treatment

Thursday, March 516:50–17:50
Room 6 (1st Floor, Ginowan City Gymnasium)

Chair	Tomohiro Nishina	(Department of Gatrointestinal Medical Oncology, NHO Shikoku Cancer Center)
	Yoshitomo Yanagimoto	(Department of Gastroenterological Surgery, Osaka International Cancer Institute)

Association of irAEs With Immunological/Nutritional Risks in First-Line Therapy for Advanced Gastric Cancer

Speaker	Akinobu Nakata	(Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan)

Recent Advances in the Management of Immune-Related Adverse Events in Patients Treated with Immune Checkpoint Inhibitors

Speaker	Yasuo Hamamoto	(Department of Medical Oncology, Institute of Science Tokyo, Tokyo, Japan)

Usefulness of medical AI for drug-induced lung injury associated with gastric cancer drug therapy

Speaker	Yasuyoshi Sato	(Department of Clinical Oncplogy, The University of Tokyo Hospital, Tokyo, Japan / Department of Gastrointestinal Surgery, Graduate School of Medicine, The University of Tokyo)

The management and issues of zolbetuximab-induced "on-target off-tumor toxicities"

Speaker	Keitaro Shimozaki	(Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of JFCR)

Clinical Characteristics of Hypoalbuminemia in Claudin18 Positive Advanced Gastric Cancer Treated with Zolbetuximab

Speaker	Kunihiro Tsuji	(Department of Medical Oncology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan)

Safety Run-In Result from C-SOLVE trial: A Randomized, Non-Comparative Phase II Trial of CapeOX or SOX Plus Zolbetuximab

Speaker	Satoshi Yuki	(Department of Gastroenterology and Hepatology, Hokkaido University Hospital)

Workshop
Membrane Anatomy–Based Surgery in Gastric Cancer: Enhancing Precision

Friday, March 69:40–11:10
Room 1 (Theater, 1st Floor, Theater, Okinawa Convention Center)

Chair	Seiichiro Kanaya	(Department of Surgery, Yao Tokushukai General Hospital)
	Hisashi Shinohara	(Department of Gastroenterological Surgery, Hyogo Medical University)

Speaker	Hisashi Shinohara	(Department of Gastroenterological Surgery, Hyogo Medical University)

Identification of Dissectible Layers and Determination of Safe Dissection Lines in Gastric Surgery

Speaker	Shusuke Haruta	(Department of Gastrointestinal Surgery, Toranomon Hospital, Tokyo, Japan / Department of Gastrointestinal Surgery, Toranomon Hospital Kajigaya, Kanagawa, Japan)

Laparoscopic Distal Gastrectomy with D2+No.13 Lymphadenectomy conscious of layers.

Speaker	Shin Akagawa	(Department of Surgery, Kitakyushu Municipal Medical Center)

Lymph node dissection around esophageal hiatus along left infra phrenic artery in robotic gastrectomy

Speaker	Akio Kaito	(Surgical Division, Tsuchiura Kyodo General Hospital)

Improving the Accuracy of Lower Mediastinal Lymph Node Dissection Based on the Concentric Circle Model

Speaker	Eigo Akimoto	(Department of Esophageal Surgery, National Cancer Center Hospital)

Robotic gastrectomy with autonomic nerve-oriented dissection after neoadjuvant chemotherapy for gastric cancer

Speaker	Susumu Shibasaki	(Department of Surgery, Fujita Health University)

Preoperative prediction of fusion patterns between the right transverse mesocolon and the pancreatic head

Speaker	Takuma Otsubo	(Department of Gastric Surgery, Shizuoka Cancer Center, Shizuoka, Japan)

Speaker	Takeshi Omori	(Department of Gastroenterological surgery, Osaka International Medical and science Center, Osaka keisatsu Hospital)

Workshop
Current Status and Challenges in Surgery for Gastric Cancer in the Remnant Stomach

Friday, March 612:40–14:10
Room 6 (1st Floor, Ginowan City Gymnasium)

Chair	Masanori Terashima	(Division of Gastric Surgery, Shizuoka Cancer Center)
	Takaki Yoshikawa	(Department of Gastric Surgery, National Cancer Center Hospital)

Pitfall of lymph node dissection for remnant gastric carcinoma by lymphatic pathway

Speaker	Noboru Nakagawa	(Department of Surgery, JCHO Kobe Central Hospital, Hyogo, Japan)

Optimal surgical procedure for remnant gastric cancer

Speaker	Takahiro Toyokawa	(Department of Gastroenterological Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan)

Outcomes of Distal and Total Gastrectomy for Remnant Gastric Cancer: Focus on Nutritional and Inflammatory Indices

Speaker	Hiroki Harada	(Department of Upper-Gastrointestinal Surgery, Kitasato University School of Medicine, Kanagawa, Japan)

Robotic-Assisted Surgery for Remnant Gastric Cancer with Fornix Preservation: Technical Strategies and Clinical Outcomes

Speaker	Kohei Fujita	(Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences and Medical School, Aichi, Japan)

A Retrospective Analysis of Postoperative Outcomes in Remnant Gastric Cancer

Speaker	Koki Fujiwara	(Department of General and Digestive Surgery,Keio University School of Medicine)

Optimal management of remnant gastric cancer: Results from a Multicenter Retrospective Study

Speaker	Shigeru Tsunoda	(Department of Surgery, Kyoto University / Kyoto Esophageal and Gastric Surgery Study Group)

Surgical strategies for remnant gastric cancer -Surgical indications after ESD and minimally invasive surgery-

Speaker	Tomoyuki Irino	(Department of Gastric Surgery, Cancer Institute Hospital, Tokyo, Japan)

Endoscopic Submucosal Dissection for Remnant Gastric Cancer: Utility of the Water Pressure Method

Speaker	Kumiko Kirita	(Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine)

Workshop
Impact of AI on managing gastric cancer in endoscopy, pathology, and surgery

Friday, March 614:20–15:50
Room 4 (B1, 2nd Floor, Conference Building B, Okinawa Convention Center)

Chair	Sho Suzuki	(Department of Gastroenterology, International University of Health and Welfare, School of Medicine)
	Jimmy So	(Department of Surgery, National University of Singapore, Singapore)

The usefulness of Computer-Aided Detection in Gastric Screening Endoscopy

Speaker	Takeshi Yasuda	(Molecular gastroenterology and hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan / Department of Gastroenterology, Akashi City Hospital, Akashi, Japan)

A Blood-Based AI Triage Tool Reduces the Number Needed to Scope for Gastric Cancer to 13:1 in a Territory-Wide Validation Study

Speaker	Minji Seo	(The Department of Mechanical and Aerospace Engineering)

Dynamic Risk Trajectories Improved Three-Month Prediagnosis Detection of Gastric Cancer by 33%

Speaker	Ka Man Cheung	(Department of Clinical Oncology, Queen Elizabeth Hospital, HKSAR)

New developments in AI-assisted surgery for robotic gastrectomy

Speaker	Masashi Takeuchi	(Department of Surgery, Keio University School of Medicine)

Assessment of Surgical Proficiency in Robotic Distal Gastrectomy Using Machine Learning Analysis

Speaker	Goshi Fujimoto	(Department of Gastroenterological Surgery, Kameda Medical Center, Kamogawa, Japan)

Automatic Segmentation and Metastasis Prediction of No.6 Lymph Nodes Based on Laparoscopic Gastrectomy Videos Using Deep Learning

Speaker	Ziyu Li	(Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Gastrointestinal Cancer Center, Peking University Cancer Hospital & Institute, Beijing, China)

Evolutionary Learning-Based Prediction of No. 5 and 6 Lymph Node Metastasis to Guide Function-Preserving Surgery in Proximal Gastric Cancer

Speaker	Ching-Yun Kung	(Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan / School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan)

Development of a machine learning prediction of the recurrence following gastrectomy

Speaker	Chie Takasu	(Department of Surgery, Tokushima University)

Potential usefulness of artificial intelligence in surgery

Speaker	Shintaro Okumura	(Kyoto University Hospital, Department of Gastrointestinal Surgery)

Can artificial intelligence match the wisdom of multidisciplinary tumour boards in GI cancer care? A multicenter study

Speaker	Chia Daryl	(Department of Surgery, University Surgical Cluster, National University Health System, Singapore, Singapore)

AI-driven treatment strategy for early gastrointestinal cancer

Speaker	Katsuro Ichimasa	(Digestive Disease Center, Showa Medical University Northern Yokohama Hospital, Yokohama, Japan)

Workshop
Optimizing Chemotherapy for Vulnerable Elderly Patients

Friday, March 614:20–15:50
Room 7 (1st Floor, Ginowan City Gymnasium)

Chair	Kazuya Yamaguchi	(Department of surgery, Central Japan International Medical Center)
	Akitaka Makiyama	(Cancer Center, Gifu University Hospital)

Our Treatment Strategy for Gastric Cancer in Elderly Patients

Speaker	Tomoyuki Matsunaga	(Division of Gastrointestinal and Pediatric Surgery, Department of Surgery, School of Medicine, Tottori University Faculty of Medicine)

Survival Benefit of Adjuvant S-1 Chemotherapy in Patients Aged over 80 Years with Gastric Cancer After Curative Surgery

Speaker	Shutaro Sumiyoshi	(Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan)

JCOG1507 phase III to confirm efficacy of adjuvant S-1 for vulnerable elderly patients with stage II/III gastric cancer

Speaker	Yasuhiro Choda	(Department of Surgery, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan)

Efficacy of Neoadjuvant Chemotherapy for Locally Advanced Gastric Cancer in Elderly Patients

Speaker	Taro Ikeda	(Division Of Gastrointestinal Surgery, Department of Surgery, Kobe University Graduate School of Medicine)

Clinical outcomes in advanced gastric cancer among elderly patients (80 years or older) treated with chemotherapy

Speaker	Takumi Ito	(Department of Medical Oncology, NHO Nagoya Medical Center, Aichi, Japan)

The nivolumab combination chemotherapy in elderly patients with unresectable advanced or recurrent gastric cancer

Speaker	Junki Fujita	(Department of Upper Gastrointestinal Surgery, Dokkyo Medical University)

Systemic therapy for elderly gastric cancer patients

Speaker	Atsushi Takeno	(Department of Surgery, NHO Osaka National Hospital)

Chemotherapeutic Approaches for Unresectable Advanced Gastric Cancer with Consideration of the G8 Geriatric Assessment

Speaker	Akitaka Makiyama	(Cancer Center, Gifu University Hospital, Gifu, Japan)

Clinical utility of geriatric assessment tools in older patients with gastric cancer

Speaker	Ayako Doi	(Department of Medical Oncology, Tonan hospital, Sapporo, Japan / Department of Clinical Oncology, St.Marianna University School of Medicine, Kawasaki, Japan)