Module 5: Gastroesophageal Cancers

Faculty

Yelena Y Janjigian

Faculty

Yelena Y Janjigian

MD

Memorial Sloan Kettering Cancer Center, New York, New York

Carroll and Milton Petrie Chair, Professor and Chief Attending, Gastrointestinal Oncology Service

Samuel J Klempner

Faculty

Samuel J Klempner

MD

Massachusetts General Hospital, Boston, Massachusetts

Program Director, Gastroesophageal Cancers, Tobins Family Endowed Chair in Esophagogastric Cancer

Harvard Medical School, Boston, Massachusetts

Associate Professor

TARGET AUDIENCE
This program is intended for medical oncologists, hematologists, hematology-oncology fellows, radiation oncologists, surgeons and other allied healthcare professionals involved in the treatment of cancer.

LEARNING OBJECTIVES

  • Effectively apply results of practice-changing clinical research to the care of patients with cancer.
  • Appraise the clinical relevance of recent pivotal cancer research published in peer-reviewed journals or presented at major oncology conferences.
  • Use an understanding of tumor biomarkers and single and multigene signatures to individualize the care of patients with cancer.
  • Educate patients with diverse hematologic cancers and solid tumors about the benefits and risks of new therapeutic agents and strategies.
  • Apply an awareness of new datasets and the perspectives of tumor-specific clinical investigators to refine or validate current treatment algorithms.
  • Evaluate the mechanisms of action, tolerability and efficacy of promising investigational agents, and consider the implications for clinical practice.
  • Recall ongoing trials of therapies for select hematologic cancers and solid tumors, and appropriately refer patients for study participation.

ACCREDITATION STATEMENT
Research To Practice is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CREDIT DESIGNATION STATEMENT
Research To Practice designates this enduring material for a maximum of 17.25 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity

AMERICAN BOARD OF INTERNAL MEDICINE (ABIM) — MAINTENANCE OF CERTIFICATION (MOC)
Successful completion of this CME activity, which includes participation in the evaluation component and a post-test, enables the participant to earn up to 17.25 Medical Knowledge MOC points in the American Board of Internal Medicine’s (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of CME credits claimed for each activity. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

Please note, this program has been specifically designed for the following ABIM specialty: medical oncology.

AMERICAN BOARD OF SURGERY (ABS) — CONTINUOUS CERTIFICATION (CC)
Successful completion of this CME activity, which includes participation in the evaluation component and a post-test, enables the learner to earn credit toward the CME and Self-Assessment requirement(s) of the American Board of Surgery’s Continuous Certification program. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABS credit.

Please note, this program has been specifically designed for the following ABS practice area: complex general surgical oncology.

PRIVACY POLICY
Personal information and data sharing: Research To Practice aggregates deidentified user data for program-use analysis, program development, activity planning and site improvement. We may provide aggregate and deidentified data to third parties, including commercial supporters. We do not share or sell personally identifiable information to any unaffiliated third parties or commercial supporters. Please see our privacy policy at ResearchToPractice.com/Privacy-Policy for more information.

HOW TO USE THIS CME ACTIVITY
To receive credit for this activity, the participant should review the CME information, watch the video, complete the post-test with a score of 80% or better, and fill out the evaluation.

CONTENT VALIDATION AND DISCLOSURES
Research To Practice (RTP) is committed to providing its participants with high-quality, unbiased and state-of-the-art education and adheres to the ACCME’s Standards for Integrity and Independence in Accredited Continuing Education. Any individuals in a position to control the content of an accredited continuing education activity, including faculty, planners, reviewers and others, are required to disclose all relevant financial relationships with ineligible entities (commercial interests). All relevant financial relationships have been mitigated prior to the commencement of this activity. In addition, all activity content is reviewed by RTP scientific staff and an external, independent physician reviewer for fair balance, scientific objectivity of studies referenced and patient care recommendations.

FACULTY — The following faculty reported relevant financial relationships with ineligible entities:

Neeraj Agarwal, MD, FASCO

No relevant financial relationships to disclose.

John N Allan, MD

Advisory Committees: NeoGenomics; Consulting Agreements: AbbVie Inc, Adaptive Biotechnologies Corporation, ADC Therapeutics, AstraZeneca Pharmaceuticals LP, BeOne, Genentech, a member of the Roche Group, Janssen Biotech Inc, Lilly, Pharmacyclics LLC, an AbbVie Company; Contracted Research: Adaptive Biotechnologies Corporation, BeOne, Bristol Myers Squibb, Genentech, a member of the Roche Group; Data and Safety Monitoring Boards/Committees: Merck; Speakers Bureaus: AbbVie Inc, BeOne.

Deborah K Armstrong, MD

Contracted Research (Clinical Trial Support): AstraZeneca Pharmaceuticals LP; Data and Safety Monitoring Boards/Committees: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Genmab US Inc.

Lyudmila Bazhenova, MD

Advisory Committees: AbbVie Inc, Bayer HealthCare Pharmaceuticals, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Genentech, a member of the Roche Group, Janssen Biotech Inc, Lilly, Merck, Natera Inc, Nuvalent, Pfizer Inc, Revolution Medicines Inc, Summit Therapeutics, Taiho Oncology Inc; Nonrelevant Financial Relationships: Alliance for Clinical Trials in Oncology Foundation.

Adam M Brufsky, MD, PhD 

Consulting Agreements: Agendia Inc, AstraZeneca Pharmaceuticals LP, BriaCell, Celcuity, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, Lilly, Merck, Myriad Genetic Laboratories Inc, Novartis, Pfizer Inc, Puma Biotechnology Inc, Sanofi.

Alan H Bryce, MD

Advisory Committees: AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, Johnson & Johnson, Lantheus, MOMA Therapeutics, Novartis, Pfizer Inc; Consulting Agreements: AstellasJohnson & Johnson; Contracted Research: Johnson & Johnson; Data and Safety Monitoring Boards/Committees: Lantheus.

Kristen K Ciombor, MD, MSCI

Advisory Committees: AbbVie Inc, Agenus Inc, ALX Oncology, BeOne, Bristol Myers Squibb, Exact Sciences Corporation, Exelixis Inc, Merck, Pfizer Inc, Summit Therapeutics, Taiho Oncology Inc, Tempus; Contracted Research: Array BioPharma Inc, a subsidiary of Pfizer Inc, BiomeaFusion Inc, Bristol Myers Squibb, Calithera Biosciences, Genentech, a member of the Roche Group, Incyte Corporation, Merck, NuCana, Pfizer Inc, Seagen Inc, Syndax Pharmaceuticals.

Courtney D DiNardo, MD, MSCE

Advisory Committees: Astellas, Bristol Myers Squibb, Kura Oncology; Consulting Agreements: AbbVie Inc, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Genmab US Inc, Molecular Partners, Rigel Pharmaceuticals Inc, Servier Pharmaceuticals LLC; Contracted Research: AbbVie Inc, Astex Pharmaceuticals, Auron Therapeutics, Remix Therapeutics, Rigel Pharmaceuticals Inc, Servier Pharmaceuticals LLC, SillaJen, SystImmune Inc.

Harry Paul Erba, MD, PhD

Advisory Committees: Daiichi Sankyo Inc, GlycoMimetics Inc, Kura Oncology, Sumitomo Pharma America; Consulting Agreements: AbbVie Inc, AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, GlycoMimetics Inc, Kura Oncology, Schrödinger, Servier Pharmaceuticals LLC, Stemline Therapeutics Inc, Sumitomo Pharma America, Taiho Oncology Inc; Contracted Research: Agios Pharmaceuticals Inc, ALX Oncology, Aptose Biosciences Inc, Ascentage Pharma, AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Gilead Sciences Inc, ImmunoGen Inc, Kura Oncology, MacroGenics Inc, Novartis, Oryzon, Rigel Pharmaceuticals Inc, Sumitomo Pharma America, Taiho Oncology Inc; Speakers Bureaus: AbbVie Inc, Incyte Corporation, Jazz Pharmaceuticals Inc, Kura Oncology, Servier Pharmaceuticals LLC, Syndax Pharmaceuticals.

Terence Friedlander, MD

Advisory Committees: Aadi Bioscience, AbbVie Inc, Adaptimmune, Aktis Oncology, Astellas, Bicycle Therapeutics, Bristol Myers Squibb, Gilead Sciences Inc, Merck, Pfizer Inc, Samsung Bioepis; Consulting Agreements: Astellas, EMD Serono Inc, Genentech, a member of the Roche Group; Contracted Research: AbbVie Inc, Bicycle Therapeutics, Flare Therapeutics, Genentech, a member of the Roche Group, Johnson & Johnson, Pfizer Inc.

Jonathan Goldman, MD

Consulting Agreements: AbbVie Inc, Amgen Inc, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Genentech, a member of the Roche Group, Janssen Biotech Inc, Lilly, Pfizer Inc, Summit Therapeutics; Contracted Research: AbbVie Inc, Agenus Inc, Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Genentech, a member of the Roche Group, GSK, Janssen Biotech Inc, Lilly, Merck, Pfizer Inc, Puma Biotechnology Inc, RayzeBio, Summit Therapeutics, Tango Therapeutics.

Mrinal Gounder, MD

Consulting Agreements: Aadi Bioscience, Avacta Therapeutics, Ayala Pharmaceuticals, Ikena Oncology, Immunome, Ipsen Biopharmaceuticals Inc, Kura Oncology, Orion Corporation, Parabilis Medicines, Rain Oncology, Regeneron Pharmaceuticals Inc, SpringWorks Therapeutics Inc, Syros Pharmaceuticals Inc; Contracted Research: Avacta Therapeutics, Ayala Pharmaceuticals, Ikena Oncology, Immunome, Ipsen Biopharmaceuticals Inc, Kura Oncology, Orion Corporation, Parabilis Medicines, Pyxis Oncology, SpringWorks Therapeutics Inc, Tango Therapeutics, Vivace Therapeutics; Data and Safety Monitoring Boards/Committees: Kura Oncology.

Erika Hamilton, MD

Consulting/Advisory Roles (All Payments to Institution): Accutar Biotechnology Inc, Arvinas, AstraZeneca Pharmaceuticals LP,BeOne, Circle Pharma, Daiichi Sankyo Inc, Entos Pharmaceuticals, Genentech, a member of the Roche Group, Gilead Sciences Inc, Halda Therapeutics, Incyclix Bio, IQVIA, Janssen Biotech Inc, Jazz Pharmaceuticals Inc, Jefferies LLC, Johnson & Johnson, Lilly, Medical Pharma Services SRO, Mersana Therapeutics Inc, Novartis, Pfizer Inc, Pyxis Oncology, Samsung Bioepis, Shorla Oncology, Stemline Therapeutics Inc, Tempus, Zentalis Pharmaceuticals; Research Funding (All Payments to Institution): AbbVie Inc, Acerta Pharma — A member of the AstraZeneca Group, Accutar Biotechnology Inc, ADC Therapeutics, Akesobio Australia Pty Ltd, Amgen Inc, Aravive Inc, ARS Pharmaceuticals, Artios Pharma Limited, Arvinas, AstraZeneca Pharmaceuticals LP, AtlasMedx Inc, BeOne, Black Diamond Therapeutics Inc, Bliss Biopharmaceutical (Hangzhou) Co Ltd, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Compugen, Context Therapeutics, Cullinan Therapeutics, Curis Inc, CytomX Therapeutics, Daiichi Sankyo Inc, Dantari, Deciphera Pharmaceuticals Inc, Duality Biologics, eFFECTOR Therapeutics Inc, Eisai Inc, Ellipses Pharma, Elucida Oncology Inc, EMD Serono Inc, Fochon Pharmaceuticals, FUJIFILM Pharmaceuticals USA Inc, G1 Therapeutics Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, Harpoon Therapeutics, Hutchison MediPharma, ImmunoGen Inc, Incyte Corporation, Infinity Pharmaceuticals Inc, Inspirna, InventisBio, Jacobio Pharmaceuticals Group Co Ltd, Karyopharm Therapeutics, K-Group Beta, Kind Pharmaceuticals LLC, Leap Therapeutics Inc, Lilly, Loxo Oncology Inc, a wholly owned subsidiary of Eli Lilly & Company, Lycera, MacroGenics Inc, Marker Therapeutics Inc, Merck, Mereo BioPharma, Mersana Therapeutics Inc, Merus, Molecular Templates, Myriad Genetic Laboratories Inc, Novartis, NuCana, Olema Oncology, Oncothyreon, ORIC Pharmaceuticals, Orinove Inc, Orum Therapeutics, Pfizer Inc, pharmaand GmbH, PharmaMar, Pieris Pharmaceuticals Inc, Pionyr Immunotherapeutics, Plexxikon Inc, Prelude Therapeutics, ProFound Therapeutics, Radius Health Inc, Regeneron Pharmaceuticals Inc, Relay Therapeutics, Repertoire Immune Medicines, Seagen Inc, Sermonix Pharmaceuticals, Shattuck Labs, Stemline Therapeutics Inc, Sutro Biopharma, Syndax Pharmaceuticals, Syros Pharmaceuticals Inc, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, Tesaro, A GSK Company, Tolmar, Transcenta, Treadwell Therapeutics, Verastem Inc, Zenith Epigenetics, Zymeworks Inc; Nonrelevant Financial Relationships: Dana-Farber Cancer Institute.

Anthony M Hunter, MD

Advisory Committees: Blueprint Medicines, Bristol Myers Squibb, Cycle Pharmaceuticals, Geron Corporation, Incyte Corporation, Novartis, PharmaEssentia, Sobi; Consulting Agreements: Blueprint Medicines, Merck, Novartis, PharmaEssentia, Sobi; Contracted Research: Ascentage Pharma, Blueprint Medicines, Cogent Biosciences, Disc Medicine, Incyte Corporation, Novartis, PharmaEssentia, Shenzhen TargetRx Inc, Sumitomo Pharma America, Syntrix Pharmaceuticals, Telios Pharma Inc; Data and Safety Monitoring Boards/Committees: Karyopharm Therapeutics.

Yelena Y Janjigian, MD

Advisory Committees: AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, Boehringer Ingelheim Pharmaceuticals Inc, Daiichi Sankyo Inc; Consulting Agreements: AbbVie Inc, AlphaSights, Arcus Biosciences, ARS Pharmaceuticals, AskGene Pharma, Astellas, AstraZeneca Pharmaceuticals LP, Basilea Pharmaceutica Ltd, Bayer HealthCare Pharmaceuticals, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Cencora, Daiichi Sankyo Inc, Eisai Inc, Geneos Therapeutics, Gilead Sciences Inc, GSK, Guardant Health, HC Wainwright & Co, Health Advances, Imugene, Inspirna, Lilly, Lynx Health, Merck, Merck Serono, Mersana Therapeutics Inc, PeerMD, Pfizer Inc, Sanofi, Seagen Inc, Suzhou Liangyihui Network Technology Co Ltd, Zymeworks Inc; Contracted Research: Arcus Biosciences, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, Bristol Myers Squibb, Genentech, a member of the Roche Group, Inspirna, Lilly, Merck, Transcenta; Nonrelevant Financial Relationships: Clinical Care Options, Cycle for Survival, Debbie’s Dream Foundation, eChinaHealth, ED Medresources Inc, Fred’s Team, HMP, i3Health, Imedex, Mashup Media LLC, Master Clinician Alliance, MJH Life Sciences, National Cancer Institute, OncoDaily (stock options), Paradigm Medical Communications, PeerView, Physician Education Resource (PER), Stand Up 2 Cancer, Talem Health, TotalCME, US Department of Defense, WebMD.

Kevin Kalinsky, MD, MS, FASCO

Consulting Agreements: AstraZeneca Pharmaceuticals LP, Bicycle Therapeutics, Biotheranostics Inc, A Hologic Company, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, Jazz Pharmaceuticals Inc, Lilly, Menarini Silicon Biosystems, Merck, Mersana Therapeutics Inc, Myovant Sciences, Novartis, Pfizer Inc, ProteinQure, Puma Biotechnology Inc, RayzeBio, Regor Therapeutics, Relay Therapeutics, Seagen Inc; Nonrelevant Financial Relationships (Spouse): Stock Options/Stock, Public Companies — Revolution Medicines Inc (prior employee of EQRx), ADC Therapeutics.

Manali Kamdar, MD, MBBS

Advisory Committees: AbbVie Inc, AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Genentech, a member of the Roche Group; Data and Safety Monitoring Boards/Committees: Bristol Myers Squibb, Celgene Corporation, Genentech, a member of the Roche Group.

Adam Kittai, MD 

Advisory Committees: AbbVie Inc, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Galapagos NV, Genmab US Inc, Pfizer Inc; Consulting Agreements: AbbVie Inc, Lilly; Honoraria for Unbranded Speaking Engagements: AstraZeneca Pharmaceuticals LP, Janssen Biotech Inc, Lilly.

Samuel J Klempner, MD

Advisory Committees: Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology, EsoBiotec, Gilead Sciences Inc, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Mersana Therapeutics Inc, Natera Inc, Novartis, Signet Therapeutics, Taiho Oncology Inc; Consulting Agreements: Astellas; Contracted Research: Arcus Biosciences, AstraZeneca Pharmaceuticals LP, I-Mab Biopharma, Mersana Therapeutics Inc, Parabilis Medicines; Data and Safety Monitoring Boards/Committees: Sanofi; Stock OPTIONS — Private Companies: MBrace Therapeutics; Nonrelevant Financial Relationships: Debbie’s Dream Foundation, Degregorio Family Foundation,Gastric Cancer Foundation, National Cancer Institute/National Institutes of Health, NCCN (member of Gastric and Esophageal Guidelines Committees), Stand Up 2 Cancer/AACR, Torrey Coast Foundation.

Corey J Langer, MD

Advisory Committees: Oncocyte, Summit Therapeutics; Consulting Agreements: Amgen Inc, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, Boehringer Ingelheim Pharmaceuticals Inc, Caris Life Sciences, Fosun Pharma, Genentech, a member of the Roche Group, Gilead Sciences Inc, Guardant Health, Jazz Pharmaceuticals Inc, Merck, Novartis, Novocure Inc, Onyx Pharmaceuticals, an Amgen subsidiary, Pfizer Inc, Regeneron Pharmaceuticals Inc, Takeda Pharmaceuticals USA Inc; Contracted Research (Institutional Support): Advangene, Amgen Inc, AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, FUJIFILM Pharmaceuticals USA Inc, Genentech, a member of the Roche Group, Guardant Health, Inovio Pharmaceuticals Inc, Lilly, Merck, Navire, Novocure Inc, Pfizer Inc, Takeda Pharmaceuticals USA Inc, Trizell; Data and Safety Monitoring Boards/Committees: Incyte Corporation, Summit Therapeutics, Research Colloquia: Aptitude Health; Nonrelevant Financial Relationships: Valor (VA).

Hans Lee, MD

Consulting Agreements (Paid to Institution): AbbVie Inc, Alexion Pharmaceuticals, Allogene Therapeutics, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, GSK, Janssen Biotech Inc, Legend Biotech, Medline, Pfizer Inc, Predicta Biosciences, Regeneron Pharmaceuticals Inc, Sanofi, Takeda Pharmaceuticals USA Inc; Consulting Agreements (Paid to Self): Alexion Pharmaceuticals,Allogene Therapeutics, Bristol Myers Squibb, GSK, Janssen Biotech Inc, Menarini Group, Pfizer Inc, Regeneron Pharmaceuticals Inc, Sanofi, Takeda Pharmaceuticals USA Inc; Contracted Research: AbbVie Inc, Alexion Pharmaceuticals, Amgen Inc, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, GSK, Janssen Biotech Inc, Menarini Group, Moderna, Regeneron Pharmaceuticals Inc, Takeda Pharmaceuticals USA Inc; Data and Safety Monitoring Boards/Committees: Allogene Therapeutics, Takeda Pharmaceuticals USA Inc.

Jane Lowe Meisel, MD

Advisory Committees: AstraZeneca Pharmaceuticals LP, GE Healthcare, Novartis, Olema Oncology, Pfizer Inc, Sermonix Pharmaceuticals; Consulting Agreements and Contracted Research: AstraZeneca Pharmaceuticals LP, Olema Oncology, Pfizer Inc, Sermonix Pharmaceuticals; Nonrelevant Financial Relationships: ASCO (DSMB,CDK dosing study).

Shanu Modi, MD 

Advisory Committees: ALX Oncology; Consulting Agreements: AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, BioNTech SE, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, D3 Bio, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, GSK, Jazz Pharmaceuticals Inc, Lilly, Nuvation Bio Inc, Pfizer Inc, Seagen Inc; Contracted Research: ALX Oncology, AstraZeneca Pharmaceuticals LP, Avacta Therapeutics, BioNTech SE, BriaCell, D3 Bio, Daiichi Sankyo Inc, Duality Biologics, Genentech, a member of the Roche Group, Nuvation Bio Inc, Pfizer Inc, Seagen Inc; Data and Safety Monitoring Boards/Committees: ALX Oncology.

David M O’Malley, MD

Consulting Agreements — Personal Fees (Consult and/or Advisory Boards): AbbVie Inc, AstraZeneca Pharmaceuticals LP, BeOne, Corcept Therapeutics Inc, Daiichi Sankyo Inc, Duality Biologics, Genmab US Inc, GSK, Lilly, Merck, MSD, Novocure Inc, Pfizer Inc, Regeneron Pharmaceuticals Inc, Verastem Inc,Zentalis Pharmaceuticals; Contracted Research (Institution Received Funds for Research): AbbVie Inc, Advaxis Inc, Agenus Inc, Alkermes, Aravive Inc, Arcus Biosciences, AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Deciphera Pharmaceuticals Inc, Eisai Inc, EMD Serono Inc, Exelixis Inc, F Hoffmann-La Roche Ltd, Genentech, a member of the Roche Group, Genmab US Inc, GSK, ImmunoGen Inc, Incyte Corporation, Iovance Biotherapeutics, Karyopharm Therapeutics, Leap Therapeutics Inc, Merck, Mersana Therapeutics Inc, MSD, Novartis, Novocure Inc, OncoC4, OncoQuest Inc, Pfizer Inc, pharmaand GmbH, Predictive Oncology Inc, Prelude Therapeutics, Regeneron Pharmaceuticals Inc, Seagen Inc, Sumitomo Pharma America, Sutro Biopharma, Tesaro, A GSK Company, Verastem Inc; Data and Safety Monitoring Boards/Committees: Frantz Viral Therapeutics.

Eileen M O’Reilly, MD

Advisory Committees and Consulting Agreements (Uncompensated): Agenus Inc, Alligator Bioscience, Amgen Inc, Arcus Biosciences, Astellas, AstraZeneca Pharmaceuticals LP, BioNTech SE, Bristol Myers Squibb, IkenaOncology, Immuneering Corporation, Ipsen Biopharmaceuticals Inc, Merck, MOMA Therapeutics, Novartis, Pfizer Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines Inc, Tango Therapeutics; Contracted Research: Agenus Inc, Amgen Inc, Arcus Biosciences,AstraZeneca Pharmaceuticals LP, BioNTech SE, Digestive Care Inc, Elicio Therapeutics, Genentech, a member of the Roche Group, Incyte Corporation, Revolution Medicines Inc, Tango Therapeutics; Nonrelevant Financial Relationships: American Association of Cancer Research (Editor), American Society of Clinical Oncology (Editor), Break Through Cancer, Imedex, National Cancer Institute (Cancer Center Support Grant/Core Grant), National Institutes of Health (research grant), Stand Up 2 Cancer.

Joyce O’Shaughnessy, MD

Advisory Committees and Consulting Agreements: Aadi Bioscience, Agendia Inc, Amgen Inc, Aptitude Health, AstraZeneca Pharmaceuticals LP, BioNTech SE, Bristol Myers Squibb, Daiichi Sankyo Inc, Duality Biologics, Eisai Inc, Ellipses Pharma, Exact Sciences Corporation, G1 Therapeutics Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, Guardant Health, HiberCell, Jazz Pharmaceuticals Inc, Johnson & Johnson, Lilly, Menarini Group, Merck, Mersana Therapeutics Inc, Natera Inc, Novartis, Pfizer Inc, Pierre Fabre, Puma Biotechnology Inc, RayzeBio, Roche Laboratories Inc, Sanofi, Seagen Inc, Stemline Therapeutics Inc, Summit Therapeutics, Tempus, TerSera Therapeutics LLC.

Krish Patel, MD

Advisory Committees (All Paid to Institution): AbbVie Inc, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Genentech, a member of the Roche Group, Janssen Biotech Inc, Loxo Oncology Inc, a wholly owned subsidiary of Eli Lilly & Company, Lyell, Merck; Consulting Agreements (All Paid to Institution): AbbVie Inc, Adaptive Biotechnologies Corporation, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Genentech, a member of the Roche Group, Janssen Biotech Inc, Loxo Oncology Inc, a wholly owned subsidiary of Eli Lilly & Company, Lyell, Merck, Pfizer Inc, Sanofi; Contracted Research (All Paid to Institution): AbbVie Inc, AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Genentech, a member of the Roche Group, Immunome, Janssen Biotech Inc, Loxo Oncology Inc, a wholly owned subsidiary of Eli Lilly & Company, Lyell, Merck.

Daniel P Petrylak, MD

Consulting Agreements: Advanced Accelerator Applications, Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, Bicycle Therapeutics, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Exelixis Inc, Gilead Sciences Inc, Incyte Corporation, Infinity Pharmaceuticals Inc, Ipsen Biopharmaceuticals Inc, Janssen Biotech Inc, Lilly, Merck, Mirati Therapeutics Inc, Monopteros Therapeutics, Pfizer Inc, pharmaand GmbH, Pharmacyclics LLC, an AbbVie Company, Regeneron Pharmaceuticals Inc, Roche Laboratories Inc, Sanofi, Seagen Inc, UroGen Pharma; Contracted Research: Advanced Accelerator Applications, Arvinas, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, BioXcel Therapeutics, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Ferring Pharmaceuticals, Genentech, a member of the Roche Group, Gilead Sciences Inc, Innocrin Pharmaceuticals Inc, Lilly, Medivation Inc, a Pfizer Company, Merck, Mirati Therapeutics Inc, Novartis, Pfizer Inc, pharmaand GmbH, Progenics Pharmaceuticals Inc, Replimune, Roche Laboratories Inc, Sanofi, Seagen Inc.

Philip A Philip, MD, PhD

Advisory Committees: Corcept Therapeutics Inc,Ipsen Biopharmaceuticals IncJazz Pharmaceuticals Inc, Novocure IncRevolution Medicines Inc; Consulting Agreements: Novocure Inc; Contracted Research: Bristol Myers Squibb, Novartis, Revolution Medicines Inc, Taiho Oncology Inc; Data and Safety Monitoring Boards/Committees: J-Pharma Co Ltd, Oncolytics Biotech Inc.

Zofia Piotrowska, MD, MHS

Consulting Agreements: AbbVie Inc, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, Black Diamond Therapeutics Inc, BlossomHill Therapeutics, Boehringer Ingelheim Pharmaceuticals Inc, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, Genmab US Inc, Gilead Sciences Inc, Janssen Biotech Inc, Lilly, Natera Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines Inc, Summit Therapeutics, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, Tubulis; Contracted Research: AbbVie Inc, AstraZeneca Pharmaceuticals LP, BlossomHill Therapeutics, Blueprint Medicines, Cullinan Therapeutics, Daiichi Sankyo Inc, Janssen Biotech Inc, Novartis, Nuvalent, Spectrum Pharmaceuticals Inc, SystImmune Inc, Takeda Pharmaceuticals USA Inc, Tesaro, A GSK Company; Data and Safety Monitoring Boards/Committees: Genentech, a member of the Roche Group.

Noopur Raje, MD 

Advisory Committees: Advisor to AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Genentech, a member of the Roche Group, GSK, Johnson & Johnson, Pfizer Inc, Sanofi. 

Richard F Riedel, MD

Advisory Committees and Consulting Agreements: Aadi Bioscience, Adaptimmune, Bayer HealthCare Pharmaceuticals, Blueprint Medicines, Boehringer Ingelheim Pharmaceuticals Inc, Cogent Biosciences, Daiichi Sankyo Inc, Deciphera Pharmaceuticals Inc, EMD Serono Inc, GSK, Ipsen Biopharmaceuticals Inc, NANO MRNARecordati, Replimune, SpringWorks Therapeutics Inc; Contracted Research: Aadi Bioscience, Adaptimmune, Cogent Biosciences, Daiichi Sankyo Inc, Deciphera Pharmaceuticals Inc, GSK, Inhibrx, Intensity Therapeutics, Kura Oncology, Servier Pharmaceuticals LLC, SpringWorks Therapeutics Inc, TRACON Pharmaceuticals Inc; Nonrelevant Financial Relationships: SARC (Sarcoma Alliance for Research through Collaboration).

Gilles Salles, MD, PhD

Advisory Committees: AbbVie Inc, BeOne, Bristol Myers Squibb, Foresight Diagnostics, a wholly-owned subsidiary of Natera Inc, Genentech, a member of the Roche Group, Genmab US Inc, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Janssen Biotech Inc, Kite, A Gilead Company, Lilly, Merck, Novartis, Nurix Therapeutics Inc, Pfizer Inc, SERB Pharmaceuticals; Consulting Agreements: AbbVie Inc, Canopy Life Sciences, Daiichi Sankyo Inc, Ellipses Pharma, Genentech, a member of the Roche Group, Genmab US Inc, Incyte Corporation, Kite, A Gilead Company, ModeX Therapeutics, Treeline Biosciences; Contracted Research: AbbVie Inc, Genentech, a member of the Roche Group, Genmab US Inc, Ipsen Biopharmaceuticals Inc, Janssen Biotech Inc.

John Strickler, MD

Advisory Committees: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Cytovation ASA, Daiichi Sankyo Inc, Exelixis Inc, Full-Life Technologies, GE Healthcare, Genentech, a member of the Roche Group, GSK, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Leap Therapeutics Inc, Lilly, Merck, Natera Inc, Pfizer Inc, Pheon Therapeutics, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines, Sanofi, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, Tempus, Xilio Therapeutics; Contracted Research: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Apollo Therapeutics, Astellas, Bayer HealthCare Pharmaceuticals, BeOne, Daiichi Sankyo Inc, Erasca, Genentech, a member of the Roche Group, GSK, Leap Therapeutics Inc, Lilly, Novartis, Pfizer Inc, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines; Data and Safety Monitoring Boards/Committees: AbbVie Inc, Johnson & Johnson; Stock OPTIONS — Private Companies: Triumvira Immunologics.

Seth Wander, MD, PhD

Consulting Agreements: Arvinas, AstraZeneca Pharmaceuticals LP, Biotheranostics Inc, A Hologic Company, Biovica International AB, Foundation Medicine, Genentech, a member of the Roche Group, Gilead Sciences Inc, Lilly, Menarini Group, Novartis, Pfizer Inc, Puma Biotechnology Inc, Regor Therapeutics, Stemline Therapeutics Inc, Veracyte Inc; Contracted Research: Arvinas, Genentech, a member of the Roche Group, Lilly, Menarini Group, Nuvation Bio Inc, Pfizer Inc, Phoenix Molecular Designs, Puma Biotechnology Inc, Regor Therapeutics, Sermonix Pharmaceuticals, Stemline Therapeutics Inc.

Abdulraheem Yacoub, MD

Consulting Agreements: Blueprint Medicines, GSK, Incyte Corporation, Karyopharm Therapeutics, Novartis, PharmaEssentia, Protagonist Therapeutics, Servier Pharmaceuticals LLC, Takeda Pharmaceuticals USA Inc; Contracted Research: CTI BioPharma, a Sobi Company, Stemline Therapeutics Inc.

MODERATOR — Dr Love is president and CEO of Research To Practice. Research To Practice receives funds in the form of educational grants to develop CME activities from the following companies: Aadi Bioscience, AbbVie Inc, ADC Therapeutics, Agendia Inc, Alexion Pharmaceuticals, Amgen Inc, Array BioPharma Inc, a subsidiary of Pfizer Inc, Arvinas, Astellas, AstraZeneca Pharmaceuticals LP, Aveo Pharmaceuticals, Bayer HealthCare Pharmaceuticals, BeOne, Biotheranostics Inc, A Hologic Company, Black Diamond Therapeutics Inc, Blueprint Medicines, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Catalyst Pharmaceuticals Inc, Celcuity, Clovis Oncology, Coherus BioSciences, Corcept Therapeutics Inc, CTI BioPharma, a Sobi Company, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology Inc, Exact Sciences Corporation, Exelixis Inc, Genentech, a member of the Roche Group, Genmab US Inc, Geron Corporation, Gilead Sciences Inc, GSK, Helsinn Therapeutics (US) Inc, ImmunoGen Inc, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Karyopharm Therapeutics, Kite, A Gilead Company, Kura Oncology, Legend Biotech, Lilly, MEI Pharma Inc, Merck, Mersana Therapeutics Inc, Mirati Therapeutics Inc, Mural Oncology Inc, Natera Inc, Novartis, Novartis Pharmaceuticals Corporation on behalf of Advanced Accelerator Applications, Novocure Inc, Nuvalent, Nuvation Bio Inc, Pfizer Inc, Pharmacyclics LLC, an AbbVie Company, Puma Biotechnology Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines Inc, Rigel Pharmaceuticals Inc, R-Pharm US, Sanofi, Seagen Inc, Servier Pharmaceuticals LLC, SpringWorks Therapeutics Inc, Stemline Therapeutics Inc, Sumitomo Pharma America, Summit Therapeutics, Syndax Pharmaceuticals, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, TerSera Therapeutics LLC, Tesaro, A GSK Company, and Verastem Inc.

RESEARCH TO PRACTICE CME PLANNING COMMITTEE MEMBERS, STAFF AND REVIEWERS — Planners, scientific staff and independent reviewers for Research To Practice have no relevant financial relationships to disclose.

This educational activity contains discussion of published and/or investigational uses of agents that are not indicated by the Food and Drug Administration. Research To Practice does not recommend the use of any agent outside of the labeled indications. Please refer to the official prescribing information for each product for discussion of approved indications, contraindications and warnings. The opinions expressed are those of the presenters and are not to be construed as those of the publisher or grantors.

This activity is supported by educational grants from AbbVie Inc, ADC Therapeutics, Astellas, Astellas and Pfizer Inc, AstraZeneca Pharmaceuticals LP, BeOne, Blueprint Medicines, Bristol Myers Squibb, Corcept Therapeutics Inc, Daiichi Sankyo Inc, Exelixis Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, GSK, Johnson & Johnson, Kite, A Gilead Company, Legend Biotech, Lilly, Merck, Natera Inc, Novartis, Puma Biotechnology Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines Inc, Rigel Pharmaceuticals Inc, SpringWorks Therapeutics Inc, Stemline Therapeutics Inc, and Summit Therapeutics.

Release date: June 2026
Expiration date: June 2027

After completing the post-test, learners may download and review the answers here in order to identify further areas of study.

Dr Klempner

Janjigian YY et al. Nivolumab plus chemotherapy as first-line treatment for advanced gastric, gastroesophageal junction, and esophageal adenocarcinoma: 5-year follow-up results from CheckMate 649. Ann Oncol 2026;[Online ahead of print]. Abstract

Klempner SJ et al. Consensus guidance for prevention and management of nausea and vomiting in patients treated with zolbetuximab + chemotherapy: A RAND/UCLA modified Delphi panel study. ESMO GI 2025;7:100131. Abstract

Ruan D-Y et al. Claudin 18.2-targeting antibody-drug conjugate CMG901 in patients with advanced gastric or gastro-oesophageal junction cancer (KYM901): A multicentre, open-label, single-arm, phase 1 trial. Lancet Oncol 2025;26(2):227-38. Abstract

Shitara K et al. Phase 2 ILUSTRO trial of 1L zolbetuximab plus mFOLFOX6 and nivolumab in patients with CLDN18.2+ locally advanced (LA) unresectable or metastatic gastric or gastroesophageal junction (mG/GEJ) adenocarcinoma. Gastrointestinal Cancers Symposium 2026;Abstract LBA284.

Shitara K et al. Zolbetuximab + pembrolizumab and chemotherapy as first-line treatment for patients with CLDN18.2-positive, HER2-negative, PD-L1-positive locally advanced unresectable or metastatic G/GEJ adenocarcinoma: Phase 3, double-blind, randomized trial (LUCERNA). Gastrointestinal Cancers Symposium 2026;Abstract TPS473.

Smyth EN et al. Opportunities for precision oncology: Real-world patterns and disparities in FGFR3 testing among US patients with advanced urothelial cancer. Gastrointestinal Cancers Symposium 2026;Abstract 682.

Tabernero J et al. Final overall survival (OS) and the association of pathological outcomes with event-free survival (EFS) in MATTERHORN: A randomised, phase III study of durvalumab (D) plus 5-fluorouracil, leucovorin, oxaliplatin and docetaxel (FLOT) in resectable gastric / gastroesophageal junction (G / GEJ) adenocarcinoma. ESMO Congress 2025;Abstract LBA81.

 

Dr Janjigian

Elimova E et al. Zanidatamab + chemotherapy (CT) ± tislelizumab for first-line (1L) HER2-positive (HER2+) locally advanced, unresectable, or metastatic gastroesophageal adenocarcinoma (mGEA): Primary analysis from HERIZON-GEA-01. Gastrointestinal Cancers Symposium 2026;Abstract LBA285.

Elimova E et al. Long-term outcomes and overall survival (OS) for zanidatamab + chemotherapy in HER2-positive (HER2+) advanced or metastatic gastroesophageal adenocarcinoma (mGEA): 4-year follow-up of a phase 2 trial. ASCO 2025;Abstract 4012.

Janjigian YY et al. First-line (1L) trastuzumab deruxtecan (T-DXd) 5.4 mg/kg + fluoropyrimidine (FP) + pembrolizumab (pembro) in advanced HER2+ gastric cancer (GC), gastroesophageal junction adenocarcinoma (GEJA), or esophageal adenocarcinoma: Updated results from DESTINY-Gastric03 (DG-03) Part 2F. ESMO Asia2025;Abstract 297P.

Shitara K et al. Telisotuzumab adizutecan (ABBV-400; Temab-A) in combination with fluorouracil, leucovorin, and budigalimab in locally advanced/metastatic gastric, gastroesophageal junction, or esophageal adenocarcinoma (a/m GEA). ASCO 2025;Abstract TPS4202.

Shitara K et al. Trastuzumab deruxtecan (T-DXd) vs ramucirumab (RAM) + paclitaxel (PTX) in second-line treatment of patients (pts) with human epidermal growth factor receptor 2-positive (HER2+) unresectable/metastatic gastric cancer (GC) or gastroesophageal junction adenocarcinoma (GEJA): Primary analysis of the randomized, phase 3 DESTINY-Gastric04 study. ASCO 2025;Abstract LBA4002.

Expert Second Opinion: Current and Future Roles of Immunotherapy and Targeted Therapy in the Management of Advanced Gastroesophageal Cancers

Accreditation types: 2.25 ABIM MOC, ABS MOC, CME

Expires: January 2027

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Faculty

Jaffer A Ajani

Faculty

Jaffer A Ajani

MD

The University of Texas MD Anderson Cancer Center, Houston, Texas

Professor of Medicine, Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine

Rutika Mehta

Faculty

Rutika Mehta

MD, MPH

Weill Cornell Medicine/NewYork-Presbyterian Hospital, New York, New York

Associate Professor, Division of Hematology/Oncology

John Strickler

Faculty

John Strickler

MD

Duke University, Durham, North Carolina

Professor of Medicine, Associate Director, Clinical Research – GI Co-Leader, Molecular Tumor Board

Samuel J Klempner

Moderator

Samuel J Klempner

MD

Massachusetts General Hospital, Boston, Massachusetts

Program Director, Gastroesophageal Cancers, Tobins Family Endowed Chair in Esophagogastric Cancer

Harvard Medical School, Boston, Massachusetts

Associate Professor

TARGET AUDIENCE
This program is intended for medical oncologists, hematology-oncology fellows, surgeons and other healthcare providers involved in the treatment of gastroesophageal cancers.

LEARNING OBJECTIVES

  • Describe published research data with immune checkpoint inhibitors alone or in combination with other systemic therapies in the management of metastatic gastric, gastroesophageal junction (GEJ) and esophageal cancers, and optimally integrate these strategies into nonresearch treatment algorithms.
  • Assess available data with monoclonal antibody therapy directed at claudin 18.2 (CLDN18.2) in combination with chemotherapy as first-line treatment for patients with HER2-negative, CLDN18.2-positive gastric or GEJ cancer, and optimally incorporate this approach into management algorithms.
  • Review published and emerging research findings with HER2-targeted therapies for patients with HER2-positive gastroesophageal cancers, and assess the current and future role of various agents and regimens.
  • Evaluate the scientific justification for the dual targeting of PD-1 and TIGIT for patients with gastroesophageal cancers, and appreciate available data with this novel approach.
  • Appreciate the rationale for, available data with and ongoing research studies evaluating novel targeted and immunotherapeutic strategies for gastroesophageal cancers to enhance clinical trial participation for appropriately identified patients.

ACCREDITATION STATEMENT
Research To Practice is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CREDIT DESIGNATION STATEMENT
Video Proceedings: Research To Practice designates this enduring material for a maximum of 2.25 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

AMERICAN BOARD OF INTERNAL MEDICINE (ABIM) — MAINTENANCE OF CERTIFICATION (MOC)
Successful completion of these CME activities, which includes participation in the evaluation components and post-tests, enables the participant to earn up to 2.25 (video) Medical Knowledge MOC points in the American Board of Internal Medicine’s (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of CME credits claimed for each activity. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

Please note, these programs have been specifically designed for the following ABIM specialty: medical oncology.

AMERICAN BOARD OF SURGERY (ABS) — CONTINOUS CERTIFICATION (CC)
Successful completion of these CME activities, which includes participation in the evaluation components and post-tests, enables the learner to earn credit toward the CME and Self-Assessment requirement(s) of the American Board of Surgery’s Continuous Certification program. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABS credit.

Please note, these programs have been specifically designed for the following ABS practice area: complex general surgical oncology.

PRIVACY POLICY
Personal information and data sharing: Research To Practice aggregates deidentified user data for program-use analysis, program development, activity planning and site improvement. We may provide aggregate and deidentified data to third parties, including commercial supporters. We do not share or sell personally identifiable information to any unaffiliated third parties or commercial supporters. Please see our privacy policy at ResearchToPractice.com/Privacy-Policy for more information.

HOW TO USE THIS CME ACTIVITY
Video Program: This CME activity consists of a video component. To receive credit, the participant should review the CME information, watch the video, complete the post-test with a score of 80% or better and fill out the evaluation located at ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Video/CME.

CONTENT VALIDATION AND DISCLOSURES
Research To Practice (RTP) is committed to providing its participants with high-quality, unbiased and state-of-the-art education and adheres to the ACCME’s Standards for Integrity and Independence in Accredited Continuing Education. Any individuals in a position to control the content of an accredited continuing education activity, including faculty, planners, reviewers and others, are required to disclose all relevant financial relationships with ineligible entities (commercial interests). All relevant financial relationships have been mitigated prior to the commencement of these activities. In addition, all activity content is reviewed by RTP scientific staff and an external, independent physician reviewer for fair balance, scientific objectivity of studies referenced and patient care recommendations.

FACULTY — The following faculty reported relevant financial relationships with ineligible entities:

Jaffer A Ajani, MD
Professor of Medicine
Department of Gastrointestinal Medical Oncology
Division of Cancer Medicine
The University of Texas MD Anderson Cancer Center
Houston, Texas

Advisory Committees and Consulting Agreements: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Gilead Sciences Inc, Henlius, Jazz Pharmaceuticals Inc, Merck, Taiho Oncology Inc, Zymeworks Inc; Contracted Research: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Henlius, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Servier Pharmaceuticals LLC.

Rutika Mehta, MD, MPH
Associate Professor, Division of Hematology/Oncology
Weill Cornell Medicine/NewYork-Presbyterian Hospital
New York, New York

Advisory Committees: Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Gilead Sciences Inc, GSK, Jazz Pharmaceuticals Inc, Legend Biotech; Consulting Agreements: Jazz Pharmaceuticals Inc, Lilly, Replimune; Data and Safety Monitoring Boards/Committees: Arcus Biosciences, Gilead Sciences Inc; Nonrelevant Financial Relationships: Robert A Winn Career Development Award.

John Strickler, MD
Professor of Medicine
Associate Director, Clinical Research – GI
Co-Leader, Molecular Tumor Board
Duke University
Durham, North Carolina

Advisory Committees: AbbVie Inc, Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Cytovation ASA, Daiichi Sankyo Inc, GE Healthcare, Genentech, a member of the Roche Group, GSK, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Leap Therapeutics Inc, Lilly, Merck, Natera Inc, Pfizer Inc, Pheon Therapeutics, Quanta Therapeutics, Regeneron Pharmaceuticals Inc, Sanofi, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, Triumvira Immunologics, Xilio Therapeutics; Contracted Research: AbbVie Inc, Amgen Inc, Apollo Therapeutics, Bayer HealthCare Pharmaceuticals, BeOne, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, GSK, Leap Therapeutics Inc, Lilly, Novartis, Pfizer Inc, Quanta Therapeutics, Revolution Medicines; Data and Safety Monitoring Boards/Committees: AbbVie Inc, Johnson & Johnson; Stock Options — Private Companies: Triumvira Immunologics.

MODERATOR
Samuel J Klempner, MD
Program Director, Gastroesophageal Cancers
Tobins Family Endowed Chair in Esophagogastric Cancer
Massachusetts General Hospital
Associate Professor, Harvard Medical School
Boston, Massachusetts

Advisory Committees: Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology, Gilead Sciences Inc, I-Mab Biopharma, Merck, Mersana Therapeutics Inc, Natera Inc, Novartis, Pfizer Inc, Taiho Oncology Inc; Consulting Agreements: Astellas, Novartis (ended 2023); Stock Options — Private Companies: MBrace Therapeutics; Nonrelevant Financial Relationships: Debbie’s Dream Foundation, Degregorio Family Foundation, Gastric Cancer Foundation, Gateway for Cancer Research, National Cancer Institute/National Institutes of Health, NCCN (member of Gastric and Esophageal Guidelines Committees), Stand Up 2 Cancer/AACR, Torrey Coast Foundation.

RESEARCH TO PRACTICE CME PLANNING COMMITTEE MEMBERS, STAFF AND REVIEWERS — Planners, scientific staff and independent reviewers for Research To Practice have no relevant financial relationships to disclose.

These educational activities contain discussion of published and/or investigational uses of agents that are not indicated by the Food and Drug Administration. Research To Practice does not recommend the use of any agent outside of the labeled indications. Please refer to the official prescribing information for each product for discussion of approved indications, contraindications and warnings. The opinions expressed are those of the presenters and are not to be construed as those of the publisher or grantors.

These activities are supported by educational grants from Astellas, BeOne, Gilead Sciences Inc, and Jazz Pharmaceuticals Inc.

Release date: January 2026
Expiration date: January 2027

After completing the post-test, learners may download and review the answers here in order to identify further areas of study.

Dr Ajani

Elimova E et al. Zanidatamab + chemotherapy (CT) ± tislelizumab for first-line (1L) HER2-positive (HER2+) locally advanced, unresectable, or metastatic gastroesophageal adenocarcinoma (mGEA): Primary analysis from HERIZON-GEA-01. Gastrointestinal Cancers Symposium 2026;Abstract LBA285.

Elimova E et al. Zanidatamab plus chemotherapy as first-line treatment for patients with HER2-positive advanced gastro-oesophageal adenocarcinoma: Primary results of a multicentre, single-arm, phase 2 study. Lancet Oncol 2025;26(7):847-59. Abstract

Meric-Bernstam F et al. Zanidatamab monotherapy or combined with chemotherapy in HER2-expressing gastroesophageal adenocarcinoma: A phase 1 trial. Nat Commun 2025;16(1):4293. Abstract

Shitara K et al. Trastuzumab deruxtecan or ramucirumab plus paclitaxel in gastric cancer. N Engl J Med 2025;393(4):336-48. Abstract

Dr Strickler

Ajani JA et al. Gastric cancer, version 2.2025, NCCN clinical practice guidelines in oncology. J Natl Compr Canc Netw 2025;23(5):169-91. Abstract

Bray F et al. Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2024;74(3):229-63. Abstract

Kubota Y et al. Comprehensive clinical and molecular characterization of claudin 18.2 expression in advanced gastric or gastroesophageal junction cancer. ESMO Open 2023;8(1):100762. Abstract

Shah MA et al. Zolbetuximab plus CAPOX in CLDN18.2-positive gastric or gastroesophageal junction adenocarcinoma: The randomized, phase 3 GLOW trial. Nat Med 2023;29(8):2133-41. Abstract

Shitara K et al. Phase 2 ILUSTRO trial of 1L zolbetuximab plus mFOLFOX6 and nivolumab in patients with CLDN18.2+ locally advanced (LA) unresectable or metastatic gastric or gastroesophageal junction (mG/GEJ) adenocarcinoma. Gastrointestinal Cancers Symposium 2026;Abstract LBA284.

Shitara K et al. Zolbetuximab in gastric or gastroesophageal junction adenocarcinoma. N Engl J Med 2024;391(12):1159-62. Abstract

Shitara K et al. Zolbetuximab plus mFOLFOX6 in patients with CLDN18.2-positive, HER2-negative, untreated, locally advanced unresectable or metastatic gastric or gastro-oesophageal junction adenocarcinoma (SPOTLIGHT): A multicentre, randomised, double-blind, phase 3 trial. Lancet 2023;401(10389):1655-68. Abstract

Dr Mehta

Janjigian YY et al. First-line nivolumab plus chemotherapy for advanced gastric, gastroesophageal junction, and esophageal adenocarcinoma: 3-year follow-up of the phase III CheckMate 649 trial. J Clin Oncol 2024;42(17):2012-20. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2-positive gastric or gastro-oesophageal junction adenocarcinoma: Interim analyses from the phase 3 KEYNOTE-811 randomised placebo-controlled trial. Lancet 2023;402(10418):2197-208. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2+ metastatic gastric or gastroesophageal junction (G/GEJ) cancer: Initial findings of the global phase 3 KEYNOTE-811 study. ASCO 2021;Abstract 4013.

Moehler MH et al. Rationale 305: Phase 3 study of tislelizumab plus chemotherapy vs placebo plus chemotherapy as first-line treatment (1L) of advanced gastric or gastroesophageal junction adenocarcinoma (GC/GEJC). Gastrointestinal Cancers Symposium 2023;Abstract 286.

Qi C et al. Claudin18.2-specific CAR T cells (Satri-cel) versus treatment of physician’s choice (TPC) for previously treated advanced gastric or gastroesophageal junction cancer (G/GEJC): Primary results from a randomized, open-label, phase II trial (CT041-ST-01). ASCO 2025;Abstract 4003.

Qiu M et al. Tislelizumab (TIS) + chemotherapy (chemo) vs placebo (PBO) + chemo as first-line (1L) treatment in gastric/gastroesophageal junction adenocarcinoma (GC/GEJC) patients with/without peritoneal or liver metastases: A post hoc analysis of RATIONALE-305 study. Gastrointestinal Cancers Symposium 2025;Abstract 414.

Qiu MZ et al. Tislelizumab plus chemotherapy versus placebo plus chemotherapy as first line treatment for advanced gastric or gastro-oesophageal junction adenocarcinoma: RATIONALE-305 randomised, double blind, phase 3 trial. BMJ 2024;385:e078876. Abstract

Rha SY et al. Pembrolizumab plus chemotherapy versus placebo plus chemotherapy for HER2-negative advanced gastric cancer (KEYNOTE-859): A multicentre, randomised, double-blind, phase 3 trial. Lancet Oncol 2023;24(11):1181-95. Abstract

Shah MA et al. Phase II study of telomelysin (OBP-301) in combination with pembrolizumab in gastroesophageal (GEA) adenocarcinoma. ASCO 2023;Abstract 4052.

Dr Klempner

Janjigian YY et al. CLARITY-Gastric 01: A randomized phase 3 study of AZD0901, a Claudin18.2 (CLDN18.2)-targeted antibody-drug conjugate, in second- or later-line (2L+) advanced gastric or gastroesophageal junction cancer (GC/GEJC). Gastrointestinal Cancers Symposium 2025;Abstract TPS507.

Janjigian YY et al. Domvanalimab and zimberelimab in advanced gastric, gastroesophageal junction or esophageal cancer: A phase 2 trial. Nat Med 2025;31(12):4274-80. Abstract

Liu JJ et al. Anti-claudin 18.2 (CLDN18.2) antibody-drug conjugate (ADC) IBI343 in patients (pts) with solid tumors and gastric/gastro-esophageal junction adenocarcinoma (G/GEJ AC): A phase I study. ESMO GI 2024;Abstract 396MO.

Rivera Herrero F et al. First-line rilvegostomig (rilve) + chemotherapy (CTx) in patients (pts) with HER2-negative (HER2–) locally advanced unresectable or metastatic gastric cancers: First report of GEMINI-Gastric sub study 2. ESMO 2024;Abstract 1422P.

Shitara K et al. Global prevalence of claudin 18 isoform 2 in tumors of patients with locally advanced unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma. Gastric Cancer 2024;27(5):1058-68. Abstract

Xu R-H et al. CLDN18.2 targeted antibody-drug conjugate (ADC), SHR-A1904, in patients (pts) with gastric/gastroesophageal junction cancer (GC/GEJC): A phase I study. ESMO 2024;Abstract 609O.

  • ASCO GI 2026
  • Gastrointestinal Cancers

Expert Second Opinion: Current and Future Roles of Immunotherapy and Targeted Therapy in the Management of Advanced Gastroesophageal Cancers

Accreditation types: 0.75 ABIM MOC, ABS MOC, CME

Expires: March 2027

To play this presentation please log in.


Don't have an account?

Sign up for free and get access to 400+ programs, live events, CME/CNE evaluations, bookmarks, watch history, and more.

Faculty

Jaffer A Ajani

Faculty

Jaffer A Ajani

MD

The University of Texas MD Anderson Cancer Center, Houston, Texas

Professor of Medicine, Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine

Rutika Mehta

Faculty

Rutika Mehta

MD, MPH

Weill Cornell Medicine NewYork-Presbyterian Hospital, New York, New York

Associate Professor, Division of Hematology/Oncology

John Strickler

Faculty

John Strickler

MD

Duke University, Durham, North Carolina

Professor of Medicine, Associate Director, Clinical Research – GI Co-Leader, Molecular Tumor Board

Samuel J Klempner

Moderator

Samuel J Klempner

MD

Massachusetts General Hospital, Boston, Massachusetts

Program Director, Gastroesophageal Cancers, Tobins Family Endowed Chair in Esophagogastric Cancer

Harvard Medical School, Boston, Massachusetts

Associate Professor

TARGET AUDIENCE
This activity is intended for medical oncologists, hematology-oncology fellows and other healthcare providers involved in the treatment of gastroesophageal cancers.

LEARNING OBJECTIVES

  • Describe published research data with immune checkpoint inhibitors alone or in combination with other systemic therapies in the management of metastatic gastric, gastroesophageal junction (GEJ) and esophageal cancers, and optimally integrate these strategies into nonresearch treatment algorithms.
  • Assess available data with monoclonal antibody therapy directed at claudin 18.2 (CLDN18.2) in combination with chemotherapy as first-line treatment for HER2-negative, CLDN18.2-positive gastric or GEJ cancer, and optimally incorporate this approach into management algorithms.
  • Review published and emerging research findings with HER2-targeted therapies for patients with HER2-positive gastroesophageal cancers, and assess the current and future role of various agents and regimens.
  • Appreciate the rationale for, available data with and ongoing research studies evaluating novel targeted and immunotherapeutic strategies for gastroesophageal cancers to enhance clinical trial participation for appropriately identified patients.

ACCREDITATION STATEMENT
Research To Practice is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CREDIT DESIGNATION STATEMENT
Video Program: Research To Practice designates this enduring material for a maximum of 0.75 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

AMERICAN BOARD OF INTERNAL MEDICINE (ABIM) — MAINTENANCE OF CERTIFICATION (MOC)
Successful completion of these CME activities, which includes participation in the evaluation components and post-tests, enables the participant to earn up to 0.75 (video) Medical Knowledge MOC points in the American Board of Internal Medicine’s (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of CME credits claimed for each activity. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

Please note, these programs have been specifically designed for the following ABIM specialty: medical oncology.

AMERICAN BOARD OF SURGERY (ABS) — CONTINOUS CERTIFICATION (CC)
Successful completion of these CME activities, which includes participation in the evaluation components and post-tests, enables the learner to earn credit toward the CME and Self-Assessment requirement(s) of the American Board of Surgery’s Continuous Certification program. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABS credit.

Please note, these programs have been specifically designed for the following ABS practice area: complex general surgical oncology.

PRIVACY POLICY
Personal information and data sharing: Research To Practice aggregates deidentified user data for program-use analysis, program development, activity planning and site improvement. We may provide aggregate and deidentified data to third parties, including commercial supporters. We do not share or sell personally identifiable information to any unaffiliated third parties or commercial supporters. Please see our privacy policy at ResearchToPractice.com/Privacy-Policy for more information.

HOW TO USE THIS CME ACTIVITY
To receive credit for an activity in this series, the participant should review the CME information, listen to or view the MP3s, complete the post-test with a score of 80% or better and fill out the evaluation. Program location URLs are noted below:

Video Program: ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Micro/1/Video and evaluation ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Micro/1/Video/CME.

CONTENT VALIDATION AND DISCLOSURES
Research To Practice (RTP) is committed to providing its participants with high-quality, unbiased and state-of-the-art education and adheres to the ACCME’s Standards for Integrity and Independence in Accredited Continuing Education. Any individuals in a position to control the content of an accredited continuing education activity, including faculty, planners, reviewers and others, are required to disclose all relevant financial relationships with ineligible entities (commercial interests). All relevant financial relationships have been mitigated prior to the commencement of these activities. In addition, all activity content is reviewed by RTP scientific staff and an external, independent physician reviewer for fair balance, scientific objectivity of studies referenced and patient care recommendations.

FACULTY — The following faculty reported relevant financial relationships with ineligible entities:

Jaffer A Ajani, MD
Professor of Medicine
Department of Gastrointestinal Medical Oncology
Division of Cancer Medicine
The University of Texas MD Anderson Cancer Center
Houston, Texas

Advisory Committees and Consulting Agreements: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Gilead Sciences Inc, Henlius, Jazz Pharmaceuticals Inc, Merck, Taiho Oncology Inc, Zymeworks Inc; Contracted Research: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Henlius, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Servier Pharmaceuticals LLC.

Rutika Mehta, MD, MPH
Associate Professor, Division of Hematology/Oncology
Weill Cornell Medicine/NewYork-Presbyterian Hospital
New York, New York

Advisory Committees: Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Gilead Sciences Inc, GSK, Jazz Pharmaceuticals Inc, Legend Biotech; Consulting Agreements: Jazz Pharmaceuticals Inc, Lilly, Replimune; Data and Safety Monitoring Boards/Committees: Arcus Biosciences, Gilead Sciences Inc; Nonrelevant Financial Relationships: Robert A Winn Career Development Award.

John Strickler, MD
Professor of Medicine
Associate Director, Clinical Research – GI
Co-Leader, Molecular Tumor Board
Duke University
Durham, North Carolina

Advisory Committees: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Cytovation ASA, Daiichi Sankyo Inc, Exelixis Inc, Full-Life Technologies, GE Healthcare, Genentech, a member of the Roche Group, GSK, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Leap Therapeutics Inc, Lilly, Merck, Natera Inc, Pfizer Inc, Pheon Therapeutics, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines, Sanofi, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, Tempus, Xilio Therapeutics; Contracted Research: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Apollo Therapeutics, Astellas, Bayer HealthCare Pharmaceuticals, BeOne, Daiichi Sankyo Inc, Erasca, Genentech, a member of the Roche Group, GSK, Leap Therapeutics Inc, Lilly, Novartis, Pfizer Inc, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines; Data and Safety Monitoring Boards/Committees: AbbVie Inc, Johnson & Johnson; Stock OPTIONS — Private Companies: Triumvira Immunologics.

MODERATOR
Samuel J Klempner, MD
Program Director, Gastroesophageal Cancers
Tobins Family Endowed Chair in Esophagogastric Cancer
Massachusetts General Hospital
Associate Professor, Harvard Medical School
Boston, Massachusetts

Advisory Committees: Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology, EsoBiotec, Gilead Sciences Inc, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Mersana Therapeutics Inc, Natera Inc, Novartis, Signet Therapeutics, Taiho Oncology Inc; Consulting Agreements: Astellas; Contracted Research: Arcus Biosciences, AstraZeneca Pharmaceuticals LP, I-Mab Biopharma, Mersana Therapeutics Inc, Parabilis Medicines; Data and Safety Monitoring Boards/Committees: Sanofi; Stock OPTIONS — Private Companies: MBrace Therapeutics; Nonrelevant Financial Relationships: Debbie’s Dream Foundation, Degregorio Family Foundation, Gastric Cancer Foundation, National Cancer Institute/National Institutes of Health, NCCN (member of Gastric and Esophageal Guidelines Committees), Stand Up 2 Cancer/AACR, Torrey Coast Foundation.

EDITOR — Dr Love is president and CEO of Research To Practice. Research To Practice receives funds in the form of educational grants to develop CME activities from the following companies: Aadi Bioscience, AbbVie Inc, ADC Therapeutics, Agendia Inc, Alexion Pharmaceuticals, Amgen Inc, Array BioPharma Inc, a subsidiary of Pfizer Inc, Arvinas, Astellas, AstraZeneca Pharmaceuticals LP, Aveo Pharmaceuticals, Bayer HealthCare Pharmaceuticals, BeOne, Biotheranostics Inc, A Hologic Company, Black Diamond Therapeutics Inc, Blueprint Medicines, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Celcuity, Clovis Oncology, Coherus BioSciences, Corcept Therapeutics Inc, CTI BioPharma, a Sobi Company, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology Inc, Exact Sciences Corporation, Exelixis Inc, Genentech, a member of the Roche Group, Genmab US Inc, Geron Corporation, Gilead Sciences Inc, GSK, Helsinn Therapeutics (US) Inc, ImmunoGen Inc, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Karyopharm Therapeutics, Kite, A Gilead Company, Kura Oncology, Legend Biotech, Lilly, MEI Pharma Inc, Merck, Mersana Therapeutics Inc, Mirati Therapeutics Inc, Mural Oncology Inc, Natera Inc, Novartis, Novartis Pharmaceuticals Corporation on behalf of Advanced Accelerator Applications, Novocure Inc, Nuvalent, Nuvation Bio Inc, Pfizer Inc, Pharmacyclics LLC, an AbbVie Company, Puma Biotechnology Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines Inc, Rigel Pharmaceuticals Inc, R-Pharm US, Sanofi, Seagen Inc, Servier Pharmaceuticals LLC, SpringWorks Therapeutics Inc, Stemline Therapeutics Inc, Sumitomo Pharma America, Syndax Pharmaceuticals, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, TerSera Therapeutics LLC, and Tesaro, A GSK Company.

RESEARCH TO PRACTICE CME PLANNING COMMITTEE MEMBERS, STAFF AND REVIEWERS — Planners, scientific staff and independent reviewers for Research To Practice have no relevant financial relationships to disclose.

These educational activities contain discussion of published and/or investigational uses of agents that are not indicated by the Food and Drug Administration. Research To Practice does not recommend the use of any agent outside of the labeled indications. Please refer to the official prescribing information for each product for discussion of approved indications, contraindications and warnings. The opinions expressed are those of the presenters and are not to be construed as those of the publisher or grantors.

These activities are supported by educational grants from Astellas, BeOne, Gilead Sciences Inc, and Jazz Pharmaceuticals Inc.

Release date: March 2026
Expiration date: March 2027

After completing the post-test, learners may download and review the answers here in order to identify further areas of study.

Dr Ajani

Elimova E et al. Zanidatamab + chemotherapy (CT) ± tislelizumab for first-line (1L) HER2-positive (HER2+) locally advanced, unresectable, or metastatic gastroesophageal adenocarcinoma (mGEA): Primary analysis from HERIZON-GEA-01. Gastrointestinal Cancers Symposium 2026;Abstract LBA285.

Elimova E et al. Zanidatamab plus chemotherapy as first-line treatment for patients with HER2-positive advanced gastro-oesophageal adenocarcinoma: Primary results of a multicentre, single-arm, phase 2 study. Lancet Oncol 2025;26(7):847-59. Abstract

Meric-Bernstam F et al. Zanidatamab monotherapy or combined with chemotherapy in HER2-expressing gastroesophageal adenocarcinoma: A phase 1 trial. Nat Commun 2025;16(1):4293. Abstract

Shitara K et al. Trastuzumab deruxtecan or ramucirumab plus paclitaxel in gastric cancer. N Engl J Med 2025;393(4):336-48. Abstract

Dr Strickler

Ajani JA et al. Gastric cancer, version 2.2025, NCCN clinical practice guidelines in oncology. J Natl Compr Canc Netw 2025;23(5):169-91. Abstract

Bray F et al. Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2024;74(3):229-63. Abstract

Kubota Y et al. Comprehensive clinical and molecular characterization of claudin 18.2 expression in advanced gastric or gastroesophageal junction cancer. ESMO Open 2023;8(1):100762. Abstract

Shah MA et al. Zolbetuximab plus CAPOX in CLDN18.2-positive gastric or gastroesophageal junction adenocarcinoma: The randomized, phase 3 GLOW trial. Nat Med 2023;29(8):2133-41. Abstract

Shitara K et al. Phase 2 ILUSTRO trial of 1L zolbetuximab plus mFOLFOX6 and nivolumab in patients with CLDN18.2+ locally advanced (LA) unresectable or metastatic gastric or gastroesophageal junction (mG/GEJ) adenocarcinoma. Gastrointestinal Cancers Symposium 2026;Abstract LBA284.

Shitara K et al. Zolbetuximab in gastric or gastroesophageal junction adenocarcinoma. N Engl J Med 2024;391(12):1159-62. Abstract

Shitara K et al. Zolbetuximab plus mFOLFOX6 in patients with CLDN18.2-positive, HER2-negative, untreated, locally advanced unresectable or metastatic gastric or gastro-oesophageal junction adenocarcinoma (SPOTLIGHT): A multicentre, randomised, double-blind, phase 3 trial. Lancet 2023;401(10389):1655-68. Abstract

Dr Mehta

Janjigian YY et al. First-line nivolumab plus chemotherapy for advanced gastric, gastroesophageal junction, and esophageal adenocarcinoma: 3-year follow-up of the phase III CheckMate 649 trial. J Clin Oncol 2024;42(17):2012-20. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2-positive gastric or gastro-oesophageal junction adenocarcinoma: Interim analyses from the phase 3 KEYNOTE-811 randomised placebo-controlled trial. Lancet 2023;402(10418):2197-208. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2+ metastatic gastric or gastroesophageal junction (G/GEJ) cancer: Initial findings of the global phase 3 KEYNOTE-811 study. ASCO 2021;Abstract 4013.

Moehler MH et al. Rationale 305: Phase 3 study of tislelizumab plus chemotherapy vs placebo plus chemotherapy as first-line treatment (1L) of advanced gastric or gastroesophageal junction adenocarcinoma (GC/GEJC). Gastrointestinal Cancers Symposium 2023;Abstract 286.

Qi C et al. Claudin18.2-specific CAR T cells (Satri-cel) versus treatment of physician’s choice (TPC) for previously treated advanced gastric or gastroesophageal junction cancer (G/GEJC): Primary results from a randomized, open-label, phase II trial (CT041-ST-01). ASCO 2025;Abstract 4003.

Qiu M et al. Tislelizumab (TIS) + chemotherapy (chemo) vs placebo (PBO) + chemo as first-line (1L) treatment in gastric/gastroesophageal junction adenocarcinoma (GC/GEJC) patients with/without peritoneal or liver metastases: A post hoc analysis of RATIONALE-305 study. Gastrointestinal Cancers Symposium 2025;Abstract 414.

Qiu MZ et al. Tislelizumab plus chemotherapy versus placebo plus chemotherapy as first line treatment for advanced gastric or gastro-oesophageal junction adenocarcinoma: RATIONALE-305 randomised, double blind, phase 3 trial. BMJ 2024;385:e078876. Abstract

Rha SY et al. Pembrolizumab plus chemotherapy versus placebo plus chemotherapy for HER2-negative advanced gastric cancer (KEYNOTE-859): A multicentre, randomised, double-blind, phase 3 trial. Lancet Oncol 2023;24(11):1181-95. Abstract

Shah MA et al. Phase II study of telomelysin (OBP-301) in combination with pembrolizumab in gastroesophageal (GEA) adenocarcinoma. ASCO 2023;Abstract 4052.

Dr Klempner

Janjigian YY et al. CLARITY-Gastric 01: A randomized phase 3 study of AZD0901, a Claudin18.2 (CLDN18.2)-targeted antibody-drug conjugate, in second- or later-line (2L+) advanced gastric or gastroesophageal junction cancer (GC/GEJC). Gastrointestinal Cancers Symposium 2025;Abstract TPS507.

Janjigian YY et al. Domvanalimab and zimberelimab in advanced gastric, gastroesophageal junction or esophageal cancer: A phase 2 trial. Nat Med 2025;31(12):4274-80. Abstract

Liu JJ et al. Anti-claudin 18.2 (CLDN18.2) antibody-drug conjugate (ADC) IBI343 in patients (pts) with solid tumors and gastric/gastro-esophageal junction adenocarcinoma (G/GEJ AC): A phase I study. ESMO GI 2024;Abstract 396MO.

Rivera Herrero F et al. First-line rilvegostomig (rilve) + chemotherapy (CTx) in patients (pts) with HER2-negative (HER2–) locally advanced unresectable or metastatic gastric cancers: First report of GEMINI-Gastric sub study 2. ESMO 2024;Abstract 1422P.

Shitara K et al. Global prevalence of claudin 18 isoform 2 in tumors of patients with locally advanced unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma. Gastric Cancer 2024;27(5):1058-68. Abstract

Xu R-H et al. CLDN18.2 targeted antibody-drug conjugate (ADC), SHR-A1904, in patients (pts) with gastric/gastroesophageal junction cancer (GC/GEJC): A phase I study. ESMO 2024; Abstract 609O.

  • ASCO GI 2026
  • Microlearning Activity

Expert Second Opinion: Current and Future Roles of Immunotherapy and Targeted Therapy in the Management of Advanced Gastroesophageal Cancers

Accreditation types: 0.5 ABIM MOC, ABS MOC, CME

Expires: April 2027

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Faculty

Jaffer A Ajani

Faculty

Jaffer A Ajani

MD

The University of Texas MD Anderson Cancer Center, Houston, Texas

Professor of Medicine, Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine

Rutika Mehta

Faculty

Rutika Mehta

MD, MPH

Weill Cornell Medicine NewYork-Presbyterian Hospital, New York, New York

Associate Professor, Division of Hematology/Oncology

John Strickler

Faculty

John Strickler

MD

Duke University, Durham, North Carolina

Professor of Medicine, Associate Director, Clinical Research – GI Co-Leader, Molecular Tumor Board

Samuel J Klempner

Moderator

Samuel J Klempner

MD

Massachusetts General Hospital, Boston, Massachusetts

Program Director, Gastroesophageal Cancers, Tobins Family Endowed Chair in Esophagogastric Cancer

Harvard Medical School, Boston, Massachusetts

Associate Professor

TARGET AUDIENCE
This activity is intended for medical oncologists, hematology-oncology fellows and other healthcare providers involved in the treatment of gastroesophageal cancers.

LEARNING OBJECTIVES

  • Describe published research data with immune checkpoint inhibitors alone or in combination with other systemic therapies in the management of metastatic gastric, gastroesophageal junction (GEJ) and esophageal cancers, and optimally integrate these strategies into current treatment algorithms.
  • Assess available data with approved and investigational Claudin 18.2 (CLDN18.2) monoclonal antibody therapy-based combination approaches as first-line treatment for HER2-negative, CLDN18.2-positive gastric or GEJ cancer, and consider this information for current patient care.
  • Review published and emerging research findings with novel HER2-targeted therapeutic approaches for HER2-positive gastroesophageal cancers, and assess their nonresearch role in patient care.
  • Evaluate available treatment strategies for patients with gastric cancer and multiple biomarkers, such as HER2, PD-L1and CLDN18.2, and assess for optimal sequencing of available targeted therapies.
  • Recall strategies commonly employed to mitigate and manage gastrointestinal side effects of CLDN18.2 monoclonal antibody-targeted therapy, and use this information to appropriately intervene when these side effects are suspected or diagnosed.

ACCREDITATION STATEMENT
Research To Practice is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CREDIT DESIGNATION STATEMENT
Video Program: Research To Practice designates this enduring material for a maximum of 0.5 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

AMERICAN BOARD OF INTERNAL MEDICINE (ABIM) — MAINTENANCE OF CERTIFICATION (MOC)
Successful completion of these CME activities, which includes participation in the evaluation components and post-tests, enables the participant to earn up to 0.5 (video) Medical Knowledge MOC points in the American Board of Internal Medicine’s (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of CME credits claimed for each activity. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

Please note, these programs have been specifically designed for the following ABIM specialty: medical oncology.

AMERICAN BOARD OF SURGERY (ABS) — CONTINOUS CERTIFICATION (CC)
Successful completion of these CME activities, which includes participation in the evaluation components and post-tests, enables the learner to earn credit toward the CME and Self-Assessment requirement(s) of the American Board of Surgery’s Continuous Certification program. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABS credit.

Please note, these programs have been specifically designed for the following ABS practice area: complex general surgical oncology.

PRIVACY POLICY
Personal information and data sharing: Research To Practice aggregates deidentified user data for program-use analysis, program development, activity planning and site improvement. We may provide aggregate and deidentified data to third parties, including commercial supporters. We do not share or sell personally identifiable information to any unaffiliated third parties or commercial supporters. Please see our privacy policy at ResearchToPractice.com/Privacy-Policy for more information.

HOW TO USE THIS CME ACTIVITY
To receive credit for an activity in this series, the participant should review the CME information, listen to or view the MP3s, complete the post-test with a score of 80% or better and fill out the evaluation. Program location URLs are noted below:

Video Program: ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Micro/2/Video and evaluation ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Micro/2/Video/CME.

CONTENT VALIDATION AND DISCLOSURES
Research To Practice (RTP) is committed to providing its participants with high-quality, unbiased and state-of-the-art education and adheres to the ACCME’s Standards for Integrity and Independence in Accredited Continuing Education. Any individuals in a position to control the content of an accredited continuing education activity, including faculty, planners, reviewers and others, are required to disclose all relevant financial relationships with ineligible entities (commercial interests). All relevant financial relationships have been mitigated prior to the commencement of these activities. In addition, all activity content is reviewed by RTP scientific staff and an external, independent physician reviewer for fair balance, scientific objectivity of studies referenced and patient care recommendations.

FACULTY — The following faculty reported relevant financial relationships with ineligible entities:

Jaffer A Ajani, MD
Professor of Medicine
Department of Gastrointestinal Medical Oncology
Division of Cancer Medicine
The University of Texas MD Anderson Cancer Center
Houston, Texas

Advisory Committees and Consulting Agreements: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Gilead Sciences Inc, Henlius, Jazz Pharmaceuticals Inc, Merck, Taiho Oncology Inc, Zymeworks Inc; Contracted Research: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Henlius, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Servier Pharmaceuticals LLC.

Rutika Mehta, MD, MPH
Associate Professor, Division of Hematology/Oncology
Weill Cornell Medicine/NewYork-Presbyterian Hospital
New York, New York

Advisory Committees: Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Gilead Sciences Inc, GSK, Jazz Pharmaceuticals Inc, Legend Biotech; Consulting Agreements: Jazz Pharmaceuticals Inc, Lilly, Replimune; Data and Safety Monitoring Boards/Committees: Arcus Biosciences, Gilead Sciences Inc; Nonrelevant Financial Relationships: Robert A Winn Career Development Award.

John Strickler, MD
Professor of Medicine
Associate Director, Clinical Research – GI
Co-Leader, Molecular Tumor Board
Duke University
Durham, North Carolina

Advisory Committees: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Cytovation ASA, Daiichi Sankyo Inc, Exelixis Inc, Full-Life Technologies, GE Healthcare, Genentech, a member of the Roche Group, GSK, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Leap Therapeutics Inc, Lilly, Merck, Natera Inc, Pfizer Inc, Pheon Therapeutics, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines, Sanofi, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, Tempus, Xilio Therapeutics; Contracted Research: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Apollo Therapeutics, Astellas, Bayer HealthCare Pharmaceuticals, BeOne, Daiichi Sankyo Inc, Erasca, Genentech, a member of the Roche Group, GSK, Leap Therapeutics Inc, Lilly, Novartis, Pfizer Inc, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines; Data and Safety Monitoring Boards/Committees: AbbVie Inc, Johnson & Johnson; Stock OPTIONS — Private Companies: Triumvira Immunologics.

MODERATOR
Samuel J Klempner, MD
Program Director, Gastroesophageal Cancers
Tobins Family Endowed Chair in Esophagogastric Cancer
Massachusetts General Hospital
Associate Professor, Harvard Medical School
Boston, Massachusetts

Advisory Committees: Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology, EsoBiotec, Gilead Sciences Inc, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Mersana Therapeutics Inc, Natera Inc, Novartis, Signet Therapeutics, Taiho Oncology Inc; Consulting Agreements: Astellas; Contracted Research: Arcus Biosciences, AstraZeneca Pharmaceuticals LP, I-Mab Biopharma, Mersana Therapeutics Inc, Parabilis Medicines; Data and Safety Monitoring Boards/Committees: Sanofi; Stock OPTIONS — Private Companies: MBrace Therapeutics; Nonrelevant Financial Relationships: Debbie’s Dream Foundation, Degregorio Family Foundation, Gastric Cancer Foundation, National Cancer Institute/National Institutes of Health, NCCN (member of Gastric and Esophageal Guidelines Committees), Stand Up 2 Cancer/AACR, Torrey Coast Foundation.

EDITOR — Dr Love is president and CEO of Research To Practice. Research To Practice receives funds in the form of educational grants to develop CME activities from the following companies: Aadi Bioscience, AbbVie Inc, ADC Therapeutics, Agendia Inc, Alexion Pharmaceuticals, Amgen Inc, Array BioPharma Inc, a subsidiary of Pfizer Inc, Arvinas, Astellas, AstraZeneca Pharmaceuticals LP, Aveo Pharmaceuticals, Bayer HealthCare Pharmaceuticals, BeOne, Biotheranostics Inc, A Hologic Company, Black Diamond Therapeutics Inc, Blueprint Medicines, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Celcuity, Clovis Oncology, Coherus BioSciences, Corcept Therapeutics Inc, CTI BioPharma, a Sobi Company, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology Inc, Exact Sciences Corporation, Exelixis Inc, Genentech, a member of the Roche Group, Genmab US Inc, Geron Corporation, Gilead Sciences Inc, GSK, Helsinn Therapeutics (US) Inc, ImmunoGen Inc, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Karyopharm Therapeutics, Kite, A Gilead Company, Kura Oncology, Legend Biotech, Lilly, MEI Pharma Inc, Merck, Mersana Therapeutics Inc, Mirati Therapeutics Inc, Mural Oncology Inc, Natera Inc, Novartis, Novartis Pharmaceuticals Corporation on behalf of Advanced Accelerator Applications, Novocure Inc, Nuvalent, Nuvation Bio Inc, Pfizer Inc, Pharmacyclics LLC, an AbbVie Company, Puma Biotechnology Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines Inc, Rigel Pharmaceuticals Inc, R-Pharm US, Sanofi, Seagen Inc, Servier Pharmaceuticals LLC, SpringWorks Therapeutics Inc, Stemline Therapeutics Inc, Sumitomo Pharma America, Summit Therapeutics, Syndax Pharmaceuticals, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, TerSera Therapeutics LLC, and Tesaro, A GSK Company.

RESEARCH TO PRACTICE CME PLANNING COMMITTEE MEMBERS, STAFF AND REVIEWERS — Planners, scientific staff and independent reviewers for Research To Practice have no relevant financial relationships to disclose.

These educational activities contain discussion of published and/or investigational uses of agents that are not indicated by the Food and Drug Administration. Research To Practice does not recommend the use of any agent outside of the labeled indications. Please refer to the official prescribing information for each product for discussion of approved indications, contraindications and warnings. The opinions expressed are those of the presenters and are not to be construed as those of the publisher or grantors.

These activities are supported by educational grants from Astellas, BeOne, Gilead Sciences Inc, and Jazz Pharmaceuticals Inc.

Release date: April 2026
Expiration date: April 2027

After completing the post-test, learners may download and review the answers here in order to identify further areas of study.

Dr Ajani

Elimova E et al. Zanidatamab + chemotherapy (CT) ± tislelizumab for first-line (1L) HER2-positive (HER2+) locally advanced, unresectable, or metastatic gastroesophageal adenocarcinoma (mGEA): Primary analysis from HERIZON-GEA-01. Gastrointestinal Cancers Symposium 2026;Abstract LBA285.

Elimova E et al. Zanidatamab plus chemotherapy as first-line treatment for patients with HER2-positive advanced gastro-oesophageal adenocarcinoma: Primary results of a multicentre, single-arm, phase 2 study. Lancet Oncol 2025;26(7):847-59. Abstract

Meric-Bernstam F et al. Zanidatamab monotherapy or combined with chemotherapy in HER2-expressing gastroesophageal adenocarcinoma: A phase 1 trial. Nat Commun 2025;16(1):4293. Abstract

Shitara K et al. Trastuzumab deruxtecan or ramucirumab plus paclitaxel in gastric cancer. N Engl J Med 2025;393(4):336-48. Abstract

Dr Strickler

Ajani JA et al. Gastric cancer, version 2.2025, NCCN clinical practice guidelines in oncology. J Natl Compr Canc Netw 2025;23(5):169-91. Abstract

Bray F et al. Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2024;74(3):229-63. Abstract

Kubota Y et al. Comprehensive clinical and molecular characterization of claudin 18.2 expression in advanced gastric or gastroesophageal junction cancer. ESMO Open 2023;8(1):100762. Abstract

Shah MA et al. Zolbetuximab plus CAPOX in CLDN18.2-positive gastric or gastroesophageal junction adenocarcinoma: The randomized, phase 3 GLOW trial. Nat Med 2023;29(8):2133-41. Abstract

Shitara K et al. Phase 2 ILUSTRO trial of 1L zolbetuximab plus mFOLFOX6 and nivolumab in patients with CLDN18.2+ locally advanced (LA) unresectable or metastatic gastric or gastroesophageal junction (mG/GEJ) adenocarcinoma. Gastrointestinal Cancers Symposium 2026;Abstract LBA284.

Shitara K et al. Zolbetuximab in gastric or gastroesophageal junction adenocarcinoma. N Engl J Med 2024;391(12):1159-62. Abstract

Shitara K et al. Zolbetuximab plus mFOLFOX6 in patients with CLDN18.2-positive, HER2-negative, untreated, locally advanced unresectable or metastatic gastric or gastro-oesophageal junction adenocarcinoma (SPOTLIGHT): A multicentre, randomised, double-blind, phase 3 trial. Lancet 2023;401(10389):1655-68. Abstract

Dr Mehta

Janjigian YY et al. First-line nivolumab plus chemotherapy for advanced gastric, gastroesophageal junction, and esophageal adenocarcinoma: 3-year follow-up of the phase III CheckMate 649 trial. J Clin Oncol 2024;42(17):2012-20. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2-positive gastric or gastro-oesophageal junction adenocarcinoma: Interim analyses from the phase 3 KEYNOTE-811 randomised placebo-controlled trial. Lancet 2023;402(10418):2197-208. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2+ metastatic gastric or gastroesophageal junction (G/GEJ) cancer: Initial findings of the global phase 3 KEYNOTE-811 study. ASCO 2021;Abstract 4013.

Moehler MH et al. Rationale 305: Phase 3 study of tislelizumab plus chemotherapy vs placebo plus chemotherapy as first-line treatment (1L) of advanced gastric or gastroesophageal junction adenocarcinoma (GC/GEJC). Gastrointestinal Cancers Symposium 2023;Abstract 286.

Qi C et al. Claudin18.2-specific CAR T cells (Satri-cel) versus treatment of physician’s choice (TPC) for previously treated advanced gastric or gastroesophageal junction cancer (G/GEJC): Primary results from a randomized, open-label, phase II trial (CT041-ST-01). ASCO 2025;Abstract 4003.

Qiu M et al. Tislelizumab (TIS) + chemotherapy (chemo) vs placebo (PBO) + chemo as first-line (1L) treatment in gastric/gastroesophageal junction adenocarcinoma (GC/GEJC) patients with/without peritoneal or liver metastases: A post hoc analysis of RATIONALE-305 study. Gastrointestinal Cancers Symposium 2025;Abstract 414.

Qiu MZ et al. Tislelizumab plus chemotherapy versus placebo plus chemotherapy as first line treatment for advanced gastric or gastro-oesophageal junction adenocarcinoma: RATIONALE-305 randomised, double blind, phase 3 trial. BMJ 2024;385:e078876. Abstract

Rha SY et al. Pembrolizumab plus chemotherapy versus placebo plus chemotherapy for HER2-negative advanced gastric cancer (KEYNOTE-859): A multicentre, randomised, double-blind, phase 3 trial. Lancet Oncol 2023;24(11):1181-95. Abstract

Shah MA et al. Phase II study of telomelysin (OBP-301) in combination with pembrolizumab in gastroesophageal (GEA) adenocarcinoma. ASCO 2023;Abstract 4052.

Dr Klempner

Janjigian YY et al. CLARITY-Gastric 01: A randomized phase 3 study of AZD0901, a Claudin18.2 (CLDN18.2)-targeted antibody-drug conjugate, in second- or later-line (2L+) advanced gastric or gastroesophageal junction cancer (GC/GEJC). Gastrointestinal Cancers Symposium 2025;Abstract TPS507.

Janjigian YY et al. Domvanalimab and zimberelimab in advanced gastric, gastroesophageal junction or esophageal cancer: A phase 2 trial. Nat Med 2025;31(12):4274-80. Abstract

Liu JJ et al. Anti-claudin 18.2 (CLDN18.2) antibody-drug conjugate (ADC) IBI343 in patients (pts) with solid tumors and gastric/gastro-esophageal junction adenocarcinoma (G/GEJ AC): A phase I study. ESMO GI 2024;Abstract 396MO.

Rivera Herrero F et al. First-line rilvegostomig (rilve) + chemotherapy (CTx) in patients (pts) with HER2-negative (HER2–) locally advanced unresectable or metastatic gastric cancers: First report of GEMINI-Gastric sub study 2. ESMO 2024;Abstract 1422P.

Shitara K et al. Global prevalence of claudin 18 isoform 2 in tumors of patients with locally advanced unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma. Gastric Cancer 2024;27(5):1058-68. Abstract

Xu R-H et al. CLDN18.2 targeted antibody-drug conjugate (ADC), SHR-A1904, in patients (pts) with gastric/gastroesophageal junction cancer (GC/GEJC): A phase I study. ESMO 2024; Abstract 609O.

  • ASCO GI 2026
  • Microlearning Activity

Expert Second Opinion: Current and Future Roles of Immunotherapy and Targeted Therapy in the Management of Advanced Gastroesophageal Cancers

Accreditation types: 0.5 ABIM MOC, ABS MOC, CME

Expires: April 2027

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Faculty

Jaffer A Ajani

Faculty

Jaffer A Ajani

MD

The University of Texas MD Anderson Cancer Center, Houston, Texas

Professor of Medicine, Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine

Rutika Mehta

Faculty

Rutika Mehta

MD, MPH

Weill Cornell Medicine NewYork-Presbyterian Hospital, New York, New York

Associate Professor, Division of Hematology/Oncology

John Strickler

Faculty

John Strickler

MD

Duke University, Durham, North Carolina

Professor of Medicine, Associate Director, Clinical Research – GI Co-Leader, Molecular Tumor Board

Samuel J Klempner

Moderator

Samuel J Klempner

MD

Massachusetts General Hospital, Boston, Massachusetts

Program Director, Gastroesophageal Cancers, Tobins Family Endowed Chair in Esophagogastric Cancer

Harvard Medical School, Boston, Massachusetts

Associate Professor

TARGET AUDIENCE
This activity is intended for medical oncologists, hematology-oncology fellows and other healthcare providers involved in the treatment of gastroesophageal cancers.

LEARNING OBJECTIVES

  • Describe published research data with immune checkpoint inhibitors alone or in combination with other systemic therapies in the management of metastatic gastric, gastroesophageal junction (GEJ) and esophageal cancers, and optimally integrate these strategies into current treatment algorithms.
  • Assess available data with claudin 18.2 (CLDN18.2)-directed monoclonal antibody therapy in combination with chemotherapy as first-line treatment for patients with HER2-negative, CLDN18.2-positive gastric or GEJ cancer, and optimally incorporate this approach into management algorithms.

ACCREDITATION STATEMENT
Research To Practice is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CREDIT DESIGNATION STATEMENT
Video Program: Research To Practice designates this enduring material for a maximum of 0.5 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

AMERICAN BOARD OF INTERNAL MEDICINE (ABIM) — MAINTENANCE OF CERTIFICATION (MOC)
Successful completion of these CME activities, which includes participation in the evaluation components and post-tests, enables the participant to earn up to 0.5 (video) Medical Knowledge MOC points in the American Board of Internal Medicine’s (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of CME credits claimed for each activity. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

Please note, these programs have been specifically designed for the following ABIM specialty: medical oncology.

AMERICAN BOARD OF SURGERY (ABS) — CONTINOUS CERTIFICATION (CC)
Successful completion of these CME activities, which includes participation in the evaluation components and post-tests, enables the learner to earn credit toward the CME and Self-Assessment requirement(s) of the American Board of Surgery’s Continuous Certification program. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABS credit.

Please note, these programs have been specifically designed for the following ABS practice area: complex general surgical oncology.

PRIVACY POLICY
Personal information and data sharing: Research To Practice aggregates deidentified user data for program-use analysis, program development, activity planning and site improvement. We may provide aggregate and deidentified data to third parties, including commercial supporters. We do not share or sell personally identifiable information to any unaffiliated third parties or commercial supporters. Please see our privacy policy at ResearchToPractice.com/Privacy-Policy for more information.

HOW TO USE THIS CME ACTIVITY
To receive credit for an activity in this series, the participant should review the CME information, listen to or view the MP3s, complete the post-test with a score of 80% or better and fill out the evaluation. Program location URLs are noted below:

Video Program: ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Micro/3/Video and evaluation ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Micro/3/Video/CME.

CONTENT VALIDATION AND DISCLOSURES
Research To Practice (RTP) is committed to providing its participants with high-quality, unbiased and state-of-the-art education and adheres to the ACCME’s Standards for Integrity and Independence in Accredited Continuing Education. Any individuals in a position to control the content of an accredited continuing education activity, including faculty, planners, reviewers and others, are required to disclose all relevant financial relationships with ineligible entities (commercial interests). All relevant financial relationships have been mitigated prior to the commencement of these activities. In addition, all activity content is reviewed by RTP scientific staff and an external, independent physician reviewer for fair balance, scientific objectivity of studies referenced and patient care recommendations.

FACULTY — The following faculty reported relevant financial relationships with ineligible entities:

Jaffer A Ajani, MD
Professor of Medicine
Department of Gastrointestinal Medical Oncology
Division of Cancer Medicine
The University of Texas MD Anderson Cancer Center
Houston, Texas

Advisory Committees and Consulting Agreements: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Gilead Sciences Inc, Henlius, Jazz Pharmaceuticals Inc, Merck, Taiho Oncology Inc, Zymeworks Inc; Contracted Research: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Henlius, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Servier Pharmaceuticals LLC.

Rutika Mehta, MD, MPH
Associate Professor, Division of Hematology/Oncology
Weill Cornell Medicine/NewYork-Presbyterian Hospital
New York, New York

Advisory Committees: Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Gilead Sciences Inc, GSK, Jazz Pharmaceuticals Inc, Legend Biotech; Consulting Agreements: Jazz Pharmaceuticals Inc, Lilly, Replimune; Data and Safety Monitoring Boards/Committees: Arcus Biosciences, Gilead Sciences Inc; Nonrelevant Financial Relationships: Robert A Winn Career Development Award.

John Strickler, MD
Professor of Medicine
Associate Director, Clinical Research – GI
Co-Leader, Molecular Tumor Board
Duke University
Durham, North Carolina

Advisory Committees: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Cytovation ASA, Daiichi Sankyo Inc, Exelixis Inc, Full-Life Technologies, GE Healthcare, Genentech, a member of the Roche Group, GSK, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Leap Therapeutics Inc, Lilly, Merck, Natera Inc, Pfizer Inc, Pheon Therapeutics, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines, Sanofi, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, Tempus, Xilio Therapeutics; Contracted Research: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Apollo Therapeutics, Astellas, Bayer HealthCare Pharmaceuticals, BeOne, Daiichi Sankyo Inc, Erasca, Genentech, a member of the Roche Group, GSK, Leap Therapeutics Inc, Lilly, Novartis, Pfizer Inc, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines; Data and Safety Monitoring Boards/Committees: AbbVie Inc, Johnson & Johnson; Stock OPTIONS — Private Companies: Triumvira Immunologics.

MODERATOR
Samuel J Klempner, MD
Program Director, Gastroesophageal Cancers
Tobins Family Endowed Chair in Esophagogastric Cancer
Massachusetts General Hospital
Associate Professor, Harvard Medical School
Boston, Massachusetts

Advisory Committees: Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology, EsoBiotec, Gilead Sciences Inc, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Mersana Therapeutics Inc, Natera Inc, Novartis, Signet Therapeutics, Taiho Oncology Inc; Consulting Agreements: Astellas; Contracted Research: Arcus Biosciences, AstraZeneca Pharmaceuticals LP, I-Mab Biopharma, Mersana Therapeutics Inc, Parabilis Medicines; Data and Safety Monitoring Boards/Committees: Sanofi; Stock OPTIONS — Private Companies: MBrace Therapeutics; Nonrelevant Financial Relationships: Debbie’s Dream Foundation, Degregorio Family Foundation, Gastric Cancer Foundation, National Cancer Institute/National Institutes of Health, NCCN (member of Gastric and Esophageal Guidelines Committees), Stand Up 2 Cancer/AACR, Torrey Coast Foundation.

EDITOR — Dr Love is president and CEO of Research To Practice. Research To Practice receives funds in the form of educational grants to develop CME activities from the following companies: Aadi Bioscience, AbbVie Inc, ADC Therapeutics, Agendia Inc, Alexion Pharmaceuticals, Amgen Inc, Array BioPharma Inc, a subsidiary of Pfizer Inc, Arvinas, Astellas, AstraZeneca Pharmaceuticals LP, Aveo Pharmaceuticals, Bayer HealthCare Pharmaceuticals, BeOne, Biotheranostics Inc, A Hologic Company, Black Diamond Therapeutics Inc, Blueprint Medicines, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Celcuity, Clovis Oncology, Coherus BioSciences, Corcept Therapeutics Inc, CTI BioPharma, a Sobi Company, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology Inc, Exact Sciences Corporation, Exelixis Inc, Genentech, a member of the Roche Group, Genmab US Inc, Geron Corporation, Gilead Sciences Inc, GSK, Helsinn Therapeutics (US) Inc, ImmunoGen Inc, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Karyopharm Therapeutics, Kite, A Gilead Company, Kura Oncology, Legend Biotech, Lilly, MEI Pharma Inc, Merck, Mersana Therapeutics Inc, Mirati Therapeutics Inc, Mural Oncology Inc, Natera Inc, Novartis, Novartis Pharmaceuticals Corporation on behalf of Advanced Accelerator Applications, Novocure Inc, Nuvalent, Nuvation Bio Inc, Pfizer Inc, Pharmacyclics LLC, an AbbVie Company, Puma Biotechnology Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines Inc, Rigel Pharmaceuticals Inc, R-Pharm US, Sanofi, Seagen Inc, Servier Pharmaceuticals LLC, SpringWorks Therapeutics Inc, Stemline Therapeutics Inc, Sumitomo Pharma America, Summit Therapeutics, Syndax Pharmaceuticals, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, TerSera Therapeutics LLC, and Tesaro, A GSK Company.

RESEARCH TO PRACTICE CME PLANNING COMMITTEE MEMBERS, STAFF AND REVIEWERS — Planners, scientific staff and independent reviewers for Research To Practice have no relevant financial relationships to disclose.

These educational activities contain discussion of published and/or investigational uses of agents that are not indicated by the Food and Drug Administration. Research To Practice does not recommend the use of any agent outside of the labeled indications. Please refer to the official prescribing information for each product for discussion of approved indications, contraindications and warnings. The opinions expressed are those of the presenters and are not to be construed as those of the publisher or grantors.

These activities are supported by educational grants from Astellas, BeOne, Gilead Sciences Inc, and Jazz Pharmaceuticals Inc.

Release date: April 2026
Expiration date: April 2027

After completing the post-test, learners may download and review the answers here in order to identify further areas of study.

Dr Ajani

Elimova E et al. Zanidatamab + chemotherapy (CT) ± tislelizumab for first-line (1L) HER2-positive (HER2+) locally advanced, unresectable, or metastatic gastroesophageal adenocarcinoma (mGEA): Primary analysis from HERIZON-GEA-01. Gastrointestinal Cancers Symposium 2026;Abstract LBA285.

Elimova E et al. Zanidatamab plus chemotherapy as first-line treatment for patients with HER2-positive advanced gastro-oesophageal adenocarcinoma: Primary results of a multicentre, single-arm, phase 2 study. Lancet Oncol 2025;26(7):847-59. Abstract

Meric-Bernstam F et al. Zanidatamab monotherapy or combined with chemotherapy in HER2-expressing gastroesophageal adenocarcinoma: A phase 1 trial. Nat Commun 2025;16(1):4293. Abstract

Shitara K et al. Trastuzumab deruxtecan or ramucirumab plus paclitaxel in gastric cancer. N Engl J Med 2025;393(4):336-48. Abstract

Dr Strickler

Ajani JA et al. Gastric cancer, version 2.2025, NCCN clinical practice guidelines in oncology. J Natl Compr Canc Netw 2025;23(5):169-91. Abstract

Bray F et al. Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2024;74(3):229-63. Abstract

Kubota Y et al. Comprehensive clinical and molecular characterization of claudin 18.2 expression in advanced gastric or gastroesophageal junction cancer. ESMO Open 2023;8(1):100762. Abstract

Shah MA et al. Zolbetuximab plus CAPOX in CLDN18.2-positive gastric or gastroesophageal junction adenocarcinoma: The randomized, phase 3 GLOW trial. Nat Med 2023;29(8):2133-41. Abstract

Shitara K et al. Phase 2 ILUSTRO trial of 1L zolbetuximab plus mFOLFOX6 and nivolumab in patients with CLDN18.2+ locally advanced (LA) unresectable or metastatic gastric or gastroesophageal junction (mG/GEJ) adenocarcinoma. Gastrointestinal Cancers Symposium 2026;Abstract LBA284.

Shitara K et al. Zolbetuximab in gastric or gastroesophageal junction adenocarcinoma. N Engl J Med 2024;391(12):1159-62. Abstract

Shitara K et al. Zolbetuximab plus mFOLFOX6 in patients with CLDN18.2-positive, HER2-negative, untreated, locally advanced unresectable or metastatic gastric or gastro-oesophageal junction adenocarcinoma (SPOTLIGHT): A multicentre, randomised, double-blind, phase 3 trial. Lancet 2023;401(10389):1655-68. Abstract

Dr Mehta

Janjigian YY et al. First-line nivolumab plus chemotherapy for advanced gastric, gastroesophageal junction, and esophageal adenocarcinoma: 3-year follow-up of the phase III CheckMate 649 trial. J Clin Oncol 2024;42(17):2012-20. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2-positive gastric or gastro-oesophageal junction adenocarcinoma: Interim analyses from the phase 3 KEYNOTE-811 randomised placebo-controlled trial. Lancet 2023;402(10418):2197-208. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2+ metastatic gastric or gastroesophageal junction (G/GEJ) cancer: Initial findings of the global phase 3 KEYNOTE-811 study. ASCO 2021;Abstract 4013.

Moehler MH et al. Rationale 305: Phase 3 study of tislelizumab plus chemotherapy vs placebo plus chemotherapy as first-line treatment (1L) of advanced gastric or gastroesophageal junction adenocarcinoma (GC/GEJC). Gastrointestinal Cancers Symposium 2023;Abstract 286.

Qi C et al. Claudin18.2-specific CAR T cells (Satri-cel) versus treatment of physician’s choice (TPC) for previously treated advanced gastric or gastroesophageal junction cancer (G/GEJC): Primary results from a randomized, open-label, phase II trial (CT041-ST-01). ASCO 2025;Abstract 4003.

Qiu M et al. Tislelizumab (TIS) + chemotherapy (chemo) vs placebo (PBO) + chemo as first-line (1L) treatment in gastric/gastroesophageal junction adenocarcinoma (GC/GEJC) patients with/without peritoneal or liver metastases: A post hoc analysis of RATIONALE-305 study. Gastrointestinal Cancers Symposium 2025;Abstract 414.

Qiu MZ et al. Tislelizumab plus chemotherapy versus placebo plus chemotherapy as first line treatment for advanced gastric or gastro-oesophageal junction adenocarcinoma: RATIONALE-305 randomised, double blind, phase 3 trial. BMJ 2024;385:e078876. Abstract

Rha SY et al. Pembrolizumab plus chemotherapy versus placebo plus chemotherapy for HER2-negative advanced gastric cancer (KEYNOTE-859): A multicentre, randomised, double-blind, phase 3 trial. Lancet Oncol 2023;24(11):1181-95. Abstract

Shah MA et al. Phase II study of telomelysin (OBP-301) in combination with pembrolizumab in gastroesophageal (GEA) adenocarcinoma. ASCO 2023;Abstract 4052.

Dr Klempner

Janjigian YY et al. CLARITY-Gastric 01: A randomized phase 3 study of AZD0901, a Claudin18.2 (CLDN18.2)-targeted antibody-drug conjugate, in second- or later-line (2L+) advanced gastric or gastroesophageal junction cancer (GC/GEJC). Gastrointestinal Cancers Symposium 2025;Abstract TPS507.

Janjigian YY et al. Domvanalimab and zimberelimab in advanced gastric, gastroesophageal junction or esophageal cancer: A phase 2 trial. Nat Med 2025;31(12):4274-80. Abstract

Liu JJ et al. Anti-claudin 18.2 (CLDN18.2) antibody-drug conjugate (ADC) IBI343 in patients (pts) with solid tumors and gastric/gastro-esophageal junction adenocarcinoma (G/GEJ AC): A phase I study. ESMO GI 2024;Abstract 396MO.

Rivera Herrero F et al. First-line rilvegostomig (rilve) + chemotherapy (CTx) in patients (pts) with HER2-negative (HER2–) locally advanced unresectable or metastatic gastric cancers: First report of GEMINI-Gastric sub study 2. ESMO 2024;Abstract 1422P.

Shitara K et al. Global prevalence of claudin 18 isoform 2 in tumors of patients with locally advanced unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma. Gastric Cancer 2024;27(5):1058-68. Abstract

Xu R-H et al. CLDN18.2 targeted antibody-drug conjugate (ADC), SHR-A1904, in patients (pts) with gastric/gastroesophageal junction cancer (GC/GEJC): A phase I study. ESMO 2024; Abstract 609O.

  • ASCO GI 2026
  • Microlearning Activity

Expert Second Opinion: Current and Future Roles of Immunotherapy and Targeted Therapy in the Management of Advanced Gastroesophageal Cancers

Accreditation types: 0.5 ABIM MOC, ABS MOC, CME

Expires: May 2027

To play this presentation please log in.


Don't have an account?

Sign up for free and get access to 400+ programs, live events, CME/CNE evaluations, bookmarks, watch history, and more.

Faculty

Jaffer A Ajani

Faculty

Jaffer A Ajani

MD

The University of Texas MD Anderson Cancer Center, Houston, Texas

Professor of Medicine, Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine

Rutika Mehta

Faculty

Rutika Mehta

MD, MPH

Weill Cornell Medicine NewYork-Presbyterian Hospital, New York, New York

Associate Professor, Division of Hematology/Oncology

John Strickler

Faculty

John Strickler

MD

Duke University, Durham, North Carolina

Professor of Medicine, Associate Director, Clinical Research – GI Co-Leader, Molecular Tumor Board

Samuel J Klempner

Moderator

Samuel J Klempner

MD

Massachusetts General Hospital, Boston, Massachusetts

Program Director, Gastroesophageal Cancers, Tobins Family Endowed Chair in Esophagogastric Cancer

Harvard Medical School, Boston, Massachusetts

Associate Professor

TARGET AUDIENCE
This activity is intended for medical oncologists, hematology-oncology fellows and other healthcare providers involved in the treatment of gastroesophageal cancers.

LEARNING OBJECTIVES

  • Assess published research data with immune checkpoint inhibitors alone or in combination with other systemic therapies for metastatic gastric, gastroesophageal junction (GEJ) and esophageal cancers, and optimally integrate these strategies into nonresearch treatment algorithms.
  • Understand the incidence of various toxicities observed with chemotherapy and targeted therapies demonstrating efficacy in patients with metastatic gastric and GEJ cancers, and use this information to appropriately intervene when side effects are suspected or diagnosed.

ACCREDITATION STATEMENT
Research To Practice is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CREDIT DESIGNATION STATEMENT
Research To Practice designates this enduring material for a maximum of 0.5 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

AMERICAN BOARD OF INTERNAL MEDICINE (ABIM) — MAINTENANCE OF CERTIFICATION (MOC)
Successful completion of this CME activity, which includes participation in the evaluation component and post-test, enables the participant to earn up to 0.5 Medical Knowledge MOC points in the American Board of Internal Medicine’s (ABIM) Maintenance of Certification (MOC) program. Participants will earn MOC points equivalent to the amount of CME credits claimed for each activity. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABIM MOC credit.

Please note, this program has been specifically designed for the following ABIM specialty: medical oncology

AMERICAN BOARD OF SURGERY (ABS) — CONTINOUS CERTIFICATION (CC)
Successful completion of this CME activity, which includes participation in the evaluation components and post-tests, enables the learner to earn credit toward the CME and Self-Assessment requirement(s) of the American Board of Surgery’s Continuous Certification program. It is the CME activity provider’s responsibility to submit participant completion information to ACCME for the purpose of granting ABS credit.

Please note, this program has been specifically designed for the following ABS practice area: complex general surgical oncology

PRIVACY POLICY
Personal information and data sharing: Research To Practice aggregates deidentified user data for program-use analysis, program development, activity planning and site improvement. We may provide aggregate and deidentified data to third parties, including commercial supporters. We do not share or sell personally identifiable information to any unaffiliated third parties or commercial supporters. Please see our privacy policy at ResearchToPractice.com/Privacy-Policy for more information.

HOW TO USE THIS CME ACTIVITY
To receive credit for an activity in this series, the participant should review the CME information, listen to or view the MP3s, complete the post-test with a score of 80% or better and fill out the evaluation. Program location URLs are noted below:

Video Program: ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Micro/4/Video and evaluation ResearchToPractice.com/ASCOGI26/ImmunoTargetedGE/Micro/4/Video/CME.

CONTENT VALIDATION AND DISCLOSURES
Research To Practice (RTP) is committed to providing its participants with high-quality, unbiased and state-of-the-art education and adheres to the ACCME’s Standards for Integrity and Independence in Accredited Continuing Education. Any individuals in a position to control the content of an accredited continuing education activity, including faculty, planners, reviewers and others, are required to disclose all relevant financial relationships with ineligible entities (commercial interests). All relevant financial relationships have been mitigated prior to the commencement of these activities. In addition, all activity content is reviewed by RTP scientific staff and an external, independent physician reviewer for fair balance, scientific objectivity of studies referenced and patient care recommendations. 

FACULTY — The following faculty reported relevant financial relationships with ineligible entities:

Jaffer A Ajani, MD
Professor of Medicine
Department of Gastrointestinal Medical Oncology
Division of Cancer Medicine
The University of Texas MD Anderson Cancer Center
Houston, Texas

Advisory Committees and Consulting Agreements: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Gilead Sciences Inc, Henlius, Jazz Pharmaceuticals Inc, Merck, Taiho Oncology Inc, Zymeworks Inc; Contracted Research: AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Henlius, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Servier Pharmaceuticals LLC.

Rutika Mehta, MD, MPH
Associate Professor, Division of Hematology/Oncology
Weill Cornell Medicine/NewYork-Presbyterian Hospital
New York, New York

Advisory Committees: Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Gilead Sciences Inc, GSK, Jazz Pharmaceuticals Inc, Legend Biotech; Consulting Agreements: Jazz Pharmaceuticals Inc, Lilly, Replimune; Data and Safety Monitoring Boards/Committees: Arcus Biosciences, Gilead Sciences Inc; Nonrelevant Financial Relationships: Robert A Winn Career Development Award.

John Strickler, MD
Professor of Medicine
Associate Director, Clinical Research – GI
Co-Leader, Molecular Tumor Board
Duke University
Durham, North Carolina

Advisory Committees: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Astellas, AstraZeneca Pharmaceuticals LP, Bayer HealthCare Pharmaceuticals, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Cytovation ASA, Daiichi Sankyo Inc, Exelixis Inc, Full-Life Technologies, GE Healthcare, Genentech, a member of the Roche Group, GSK, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Leap Therapeutics Inc, Lilly, Merck, Natera Inc, Pfizer Inc, Pheon Therapeutics, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines, Sanofi, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, Tempus, Xilio Therapeutics; Contracted Research: AbbVie Inc, Alterome Therapeutics, Amgen Inc, Apollo Therapeutics, Astellas, Bayer HealthCare Pharmaceuticals, BeOne, Daiichi Sankyo Inc, Erasca, Genentech, a member of the Roche Group, GSK, Leap Therapeutics Inc, Lilly, Novartis, Pfizer Inc, Quanta Therapeutics Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines; Data and Safety Monitoring Boards/Committees: AbbVie Inc, Johnson & Johnson; Stock OPTIONS — Private Companies: Triumvira Immunologics.

MODERATOR
Samuel J Klempner, MD
Program Director, Gastroesophageal Cancers
Tobins Family Endowed Chair in Esophagogastric Cancer
Massachusetts General Hospital
Associate Professor, Harvard Medical School
Boston, Massachusetts

Advisory Committees: Astellas, AstraZeneca Pharmaceuticals LP, BeOne, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology, EsoBiotec, Gilead Sciences Inc, I-Mab Biopharma, Jazz Pharmaceuticals Inc, Merck, Mersana Therapeutics Inc, Natera Inc, Novartis, Signet Therapeutics, Taiho Oncology Inc; Consulting Agreements: Astellas; Contracted Research: Arcus Biosciences, AstraZeneca Pharmaceuticals LP, I-Mab Biopharma, Mersana Therapeutics Inc, Parabilis Medicines; Data and Safety Monitoring Boards/Committees: Sanofi; Stock OPTIONS — Private Companies: MBrace Therapeutics; Nonrelevant Financial Relationships: Debbie’s Dream Foundation, Degregorio Family Foundation, Gastric Cancer Foundation, National Cancer Institute/National Institutes of Health, NCCN (member of Gastric and Esophageal Guidelines Committees), Stand Up 2 Cancer/AACR, Torrey Coast Foundation.

EDITOR — Dr Love is president and CEO of Research To Practice. Research To Practice receives funds in the form of educational grants to develop CME activities from the following companies: Aadi Bioscience, AbbVie Inc, ADC Therapeutics, Agendia Inc, Alexion Pharmaceuticals, Amgen Inc, Array BioPharma Inc, a subsidiary of Pfizer Inc, Arvinas, Astellas, AstraZeneca Pharmaceuticals LP, Aveo Pharmaceuticals, Bayer HealthCare Pharmaceuticals, BeOne, Biotheranostics Inc, A Hologic Company, Black Diamond Therapeutics Inc, Blueprint Medicines, Boehringer Ingelheim Pharmaceuticals Inc, Bristol Myers Squibb, Celcuity, Clovis Oncology, Coherus BioSciences, Corcept Therapeutics Inc, CTI BioPharma, a Sobi Company, Daiichi Sankyo Inc, Eisai Inc, Elevation Oncology Inc, Exact Sciences Corporation, Exelixis Inc, Genentech, a member of the Roche Group, Genmab US Inc, Geron Corporation, Gilead Sciences Inc, GSK, Helsinn Therapeutics (US) Inc, ImmunoGen Inc, Incyte Corporation, Ipsen Biopharmaceuticals Inc, Jazz Pharmaceuticals Inc, Johnson & Johnson, Karyopharm Therapeutics, Kite, A Gilead Company, Kura Oncology, Legend Biotech, Lilly, MEI Pharma Inc, Merck, Mersana Therapeutics Inc, Mirati Therapeutics Inc, Mural Oncology Inc, Natera Inc, Novartis, Novartis Pharmaceuticals Corporation on behalf of Advanced Accelerator Applications, Novocure Inc, Nuvalent, Nuvation Bio Inc, Pfizer Inc, Pharmacyclics LLC, an AbbVie Company, Puma Biotechnology Inc, Regeneron Pharmaceuticals Inc, Revolution Medicines Inc, Rigel Pharmaceuticals Inc, R-Pharm US, Sanofi, Seagen Inc, Servier Pharmaceuticals LLC, SpringWorks Therapeutics Inc, Stemline Therapeutics Inc, Sumitomo Pharma America, Summit Therapeutics, Syndax Pharmaceuticals, Taiho Oncology Inc, Takeda Pharmaceuticals USA Inc, TerSera Therapeutics LLC, and Tesaro, A GSK Company.

RESEARCH TO PRACTICE CME PLANNING COMMITTEE MEMBERS, STAFF AND REVIEWERS — Planners, scientific staff and independent reviewers for Research To Practice have no relevant financial relationships to disclose.

This educational activity contains discussion of published and/or investigational uses of agents that are not indicated by the Food and Drug Administration. Research To Practice does not recommend the use of any agent outside of the labeled indications. Please refer to the official prescribing information for each product for discussion of approved indications, contraindications and warnings. The opinions expressed are those of the presenters and are not to be construed as those of the publisher or grantors.

This activity is supported by educational grants from Astellas, BeOne, Gilead Sciences Inc, and Jazz Pharmaceuticals Inc.

Release date: May 2026
Expiration date: May 2027

After completing the post-test, learners may download and review the answers here in order to identify further areas of study.

Dr Ajani

Elimova E et al. Zanidatamab + chemotherapy (CT) ± tislelizumab for first-line (1L) HER2-positive (HER2+) locally advanced, unresectable, or metastatic gastroesophageal adenocarcinoma (mGEA): Primary analysis from HERIZON-GEA-01. Gastrointestinal Cancers Symposium 2026;Abstract LBA285.

Elimova E et al. Zanidatamab plus chemotherapy as first-line treatment for patients with HER2-positive advanced gastro-oesophageal adenocarcinoma: Primary results of a multicentre, single-arm, phase 2 study. Lancet Oncol 2025;26(7):847-59. Abstract

Meric-Bernstam F et al. Zanidatamab monotherapy or combined with chemotherapy in HER2-expressing gastroesophageal adenocarcinoma: A phase 1 trial. Nat Commun 2025;16(1):4293. Abstract

Shitara K et al. Trastuzumab deruxtecan or ramucirumab plus paclitaxel in gastric cancer. N Engl J Med 2025;393(4):336-48. Abstract

Dr Klempner

Janjigian YY et al. CLARITY-Gastric 01: A randomized phase 3 study of AZD0901, a Claudin18.2 (CLDN18.2)-targeted antibody-drug conjugate, in second- or later-line (2L+) advanced gastric or gastroesophageal junction cancer (GC/GEJC). Gastrointestinal Cancers Symposium 2025;Abstract TPS507.

Janjigian YY et al. Domvanalimab and zimberelimab in advanced gastric, gastroesophageal junction or esophageal cancer: A phase 2 trial. Nat Med 2025;31(12):4274-80. Abstract

Liu JJ et al. Anti-claudin 18.2 (CLDN18.2) antibody-drug conjugate (ADC) IBI343 in patients (pts) with solid tumors and gastric/gastro-esophageal junction adenocarcinoma (G/GEJ AC): A phase I study. ESMO GI 2024;Abstract 396MO.

Rivera Herrero F et al. First-line rilvegostomig (rilve) + chemotherapy (CTx) in patients (pts) with HER2-negative (HER2–) locally advanced unresectable or metastatic gastric cancers: First report of GEMINI-Gastric sub study 2. ESMO 2024;Abstract 1422P.

Shitara K et al. Global prevalence of claudin 18 isoform 2 in tumors of patients with locally advanced unresectable or metastatic gastric or gastroesophageal junction adenocarcinoma. Gastric Cancer 2024;27(5):1058-68. Abstract

Xu R-H et al. CLDN18.2 targeted antibody-drug conjugate (ADC), SHR-A1904, in patients (pts) with gastric/gastroesophageal junction cancer (GC/GEJC): A phase I study. ESMO 2024; Abstract 609O.

Dr Mehta

Janjigian YY et al. First-line nivolumab plus chemotherapy for advanced gastric, gastroesophageal junction, and esophageal adenocarcinoma: 3-year follow-up of the phase III CheckMate 649 trial. J Clin Oncol 2024;42(17):2012-20. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2-positive gastric or gastro-oesophageal junction adenocarcinoma: Interim analyses from the phase 3 KEYNOTE-811 randomised placebo-controlled trial. Lancet 2023;402(10418):2197-208. Abstract

Janjigian YY et al. Pembrolizumab plus trastuzumab and chemotherapy for HER2+ metastatic gastric or gastroesophageal junction (G/GEJ) cancer: Initial findings of the global phase 3 KEYNOTE-811 study. ASCO 2021;Abstract 4013.

Moehler MH et al. Rationale 305: Phase 3 study of tislelizumab plus chemotherapy vs placebo plus chemotherapy as first-line treatment (1L) of advanced gastric or gastroesophageal junction adenocarcinoma (GC/GEJC). Gastrointestinal Cancers Symposium 2023;Abstract 286.

Qi C et al. Claudin18.2-specific CAR T cells (Satri-cel) versus treatment of physician’s choice (TPC) for previously treated advanced gastric or gastroesophageal junction cancer (G/GEJC): Primary results from a randomized, open-label, phase II trial (CT041-ST-01). ASCO 2025;Abstract 4003.

Qiu M et al. Tislelizumab (TIS) + chemotherapy (chemo) vs placebo (PBO) + chemo as first-line (1L) treatment in gastric/gastroesophageal junction adenocarcinoma (GC/GEJC) patients with/without peritoneal or liver metastases: A post hoc analysis of RATIONALE-305 study. Gastrointestinal Cancers Symposium 2025;Abstract 414.

Qiu M-Z et al. Tislelizumab plus chemotherapy versus placebo plus chemotherapy as first line treatment for advanced gastric or gastro-oesophageal junction adenocarcinoma: RATIONALE-305 randomised, double blind, phase 3 trial. BMJ 2024;385:e078876. Abstract

Rha SY et al. Pembrolizumab plus chemotherapy versus placebo plus chemotherapy for HER2-negative advanced gastric cancer (KEYNOTE-859): A multicentre, randomised, double-blind, phase 3 trial. Lancet Oncol 2023;24(11):1181-95. Abstract

Shah MA et al. Phase II study of telomelysin (OBP-301) in combination with pembrolizumab in gastroesophageal (GEA) adenocarcinoma. ASCO 2023;Abstract 4052.

Dr Strickler

Ajani JA et al. Gastric cancer, version 2.2025, NCCN clinical practice guidelines in oncology. J Natl Compr Canc Netw 2025;23(5):169-91. Abstract

Bray F et al. Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2024;74(3):229-63. Abstract

Kubota Y et al. Comprehensive clinical and molecular characterization of claudin 18.2 expression in advanced gastric or gastroesophageal junction cancer. ESMO Open 2023;8(1):100762. Abstract

Shah MA et al. Zolbetuximab plus CAPOX in CLDN18.2-positive gastric or gastroesophageal junction adenocarcinoma: The randomized, phase 3 GLOW trial. Nat Med 2023;29(8):2133-41. Abstract

Shitara K et al. Phase 2 ILUSTRO trial of 1L zolbetuximab plus mFOLFOX6 and nivolumab in patients with CLDN18.2+ locally advanced (LA) unresectable or metastatic gastric or gastroesophageal junction (mG/GEJ) adenocarcinoma. Gastrointestinal Cancers Symposium 2026;Abstract LBA284.

Shitara K et al. Zolbetuximab in gastric or gastroesophageal junction adenocarcinoma. N Engl J Med 2024;391(12):1159-62. Abstract

Shitara K et al. Zolbetuximab plus mFOLFOX6 in patients with CLDN18.2-positive, HER2-negative, untreated, locally advanced unresectable or metastatic gastric or gastro-oesophageal junction adenocarcinoma (SPOTLIGHT): A multicentre, randomised, double-blind, phase 3 trial. Lancet 2023;401(10389):1655-68. Abstract

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