What Clinicians Want to Know: Addressing Community Oncologists’ Questions About the Current and Future Role of Antibody-Drug Conjugates in the Management of Breast Cancer

A CME Symposium Held Adjunct with the 2026 ASCO® Annual Meeting

Location
Hilton Chicago
720 South Michigan Avenue
Chicago, Illinois
Phone: (312) 922-4400

Program Schedule — Central Time
6:30 PM – 7:00 PM — Registration and Dinner
7:00 PM – 9:00 PM — Educational Meeting

Meeting Room
Continental Room A (Lobby Level)

No registration fee is charged for this event. For the in-person symposium in Chicago, preregistration is required as seating is limited.

Faculty

Professor Giuseppe Curigliano

Faculty

Professor Giuseppe Curigliano

MD, PhD

University of Milano European Institute of Oncology, Milano, Italy

Clinical Director, Division of Early Drug Development for Innovative Therapy, Co-Chair, Cancer Experimental Therapeutics Program, Department of Oncology and Hemato-Oncology

Rebecca A Dent

Faculty

Rebecca A Dent

MD, MSc

National Cancer Centre Singapore, Singapore

Senior Consultant, Division of Medical Oncology

Duke-NUS Medical School, Singapore

Professor

Erika Hamilton

Faculty

Erika Hamilton

MD

Sarah Cannon Research Institute, SCRI Oncology Partners, Nashville, Tennessee

Chief Development Officer, Late Phase, Director, Breast Cancer Research Program

Hope S Rugo

Moderator

Hope S Rugo

MD

City of Hope Comprehensive Cancer Center, Duarte, California

Director, Women’s Cancers Program, Division Chief, Breast Medical Oncology, Professor, Department of Medical Oncology and Therapeutics Research

UCSF

Professor Emeritus

Nadia Harbeck

Faculty

Nadia Harbeck

MD, PhD

LMU University Hospital, Munich, Germany

Breast Center Director, Department of Obstetrics and Gynecology and Comprehensive Cancer Center Munich

This activity is supported by educational grants from AstraZeneca Pharmaceuticals LP and Daiichi Sankyo Inc.

Not an official event of the 2026 ASCO® Annual Meeting. Not sponsored, endorsed, or accredited by ASCO®, Association for Clinical Oncology, or Conquer Cancer®, the ASCO Foundation.

Program Schedule — Central Time
6:30 PM – 7:00 PM — Registration and Dinner
7:00 PM – 9:00 PM — Educational Meeting

MODULE 1: Evolving Role of Antibody-Drug Conjugates (ADCs) in the Management of Metastatic Triple-Negative Breast Cancer (mTNBC)

  • Scientific rationale for investigating TROP2-directed ADCs for previously untreated mTNBC
  • Key efficacy and safety data from the Phase III ASCENT-04/KEYNOTE-D19 and ASCENT-03 trials evaluating sacituzumab govitecan in combination with pembrolizumab and as monotherapy for patients with previously untreated PD-L1-positive and PD-L1-negative mTNBC, respectively
  • Recently published data from the Phase III TROPION-Breast02 study of first-line datopotamab deruxtecan (Dato-DXd) versus chemotherapy for patients with advanced TNBC for whom immunotherapy was not an option
  • Potential roles of sacituzumab govitecan and Dato-DXd for previously untreated mTNBC
  • Updated data with trastuzumab deruxtecan (T-DXd) in the subset of patients with previously treated hormone receptor (HR)-negative, HER2-low advanced breast cancer in the Phase III DESTINY-Breast04 study; current role alongside other treatment options
  • Clinical trial findings with and ongoing investigation of other ADCs for mTNBC, such as sacituzumab tirumotecan and izalontamab brengitecan

MODULE 2: Integrating ADCs into the Management of HER2-Positive Metastatic Breast Cancer (mBC)

  • Historical outcomes with standard HER2-targeted therapies for newly diagnosed HER2-positive mBC; rationale for the evaluation of HER2-targeted ADCs in the front-line setting
  • Published efficacy and safety findings from the Phase III DESTINY-Breast09 trial documenting the benefit of T-DXd/pertuzumab versus taxane/trastuzumab/pertuzumab as first-line therapy for HER2-positive mBC
  • Implications of the DESTINY-Breast09 trial for sequencing therapies for HER2-positive mBC
  • Intracranial efficacy documented with T-DXd in published clinical trials, including DESTINY-Breast01, 02 and 03, DESTINY-Breast12, DEBBRAH and TUXEDO-1; implications for the management of HER2-positive mBC
  • Outcomes documented among patients with previously treated HER2-positive mBC without CNS involvement in pivotal clinical studies of T-DXd
  • Other promising HER2-directed ADCs under investigation for HER2-positive mBC

MODULE 3: Role of ADCs in the Management of Endocrine-Resistant HR-Positive mBC

  • Long-term efficacy and safety findings from the Phase III TROPiCS-02 trial of sacituzumab govitecan for previously treated HR-positive, HER2-negative mBC
  • Optimal integration of sacituzumab govitecan into management algorithms for HR-positive, HER2-negative disease
  • Available efficacy and safety findings from the Phase III TROPION-Breast01 study of Dato-DXd versus investigator’s choice of chemotherapy for pretreated HR-positive, HER2-negative mBC
  • FDA approval of Dato-DXd for patients with HR-positive, HER2-negative mBC who have previously received endocrine-based therapy and chemotherapy; current clinical role
  • Available data from the DESTINY-Breast04 and DESTINY-Breast06 studies evaluating T-DXd versus chemotherapy for patients with previously treated HER2-low and HER2-ultralow advanced breast cancer
  • FDA approval of T-DXd for advanced HR-positive, HER2-low and HER2-ultralow breast cancer progressing after one or more endocrine therapies in the metastatic setting; optimal incorporation into disease management

MODULE 4: Emerging Utility of ADCs for Localized Breast Cancer

  • Key clinical factors in the selection of neoadjuvant and adjuvant systemic therapy for patients with HER2-positive localized breast cancer; effect of various therapeutic approaches on outcomes
  • Published findings from the Phase III DESTINY-Breast11 study evaluating T-DXd as a component of neoadjuvant therapy for patients with high-risk, HER2-positive localized breast cancer
  • Recently presented data from the Phase III DESTINY-Breast05 study of T-DXd versus T-DM1 for patients with high-risk HER2-positive breast cancer and residual invasive disease after neoadjuvant therapy
  • Implications of the DESTINY-Breast11 and DESTINY-Breast05 studies for the management of HER2-positive localized breast cancer
  • Ongoing Phase III trials, such as ASCENT-05, ADAPT-TN-III, ADAPT-TN-IV, TROPION-Breast04, TROPION-Breast05, TroFuse-012 and TroFuse-032, evaluating TROP2 ADCs as a component of neoadjuvant or adjuvant therapy for localized disease; estimated completion dates

MODULE 5: Tolerability Considerations with ADCs for Breast Cancer

  • Spectrum, incidence and severity of common and unique adverse events (AEs) with different ADCs employed in the management of breast cancer
  • Monitoring and management of acute “chemotherapy-like” AEs reported with ADCs, such as cytopenias and gastrointestinal events
  • Recommended algorithms for mitigating more serious (eg, interstitial lung disease, left ventricular dysfunction) or unique (eg, oral mucositis/stomatitis, ocular AEs) toxicities documented with one or more ADCs
  • Strategies to distinguish the cause of AEs that could be attributable to either agent in ADC-containing combination regimens
  • Impact on tolerability, if any, of the placement of ADCs in the treatment course (eg, later-line therapy for metastatic disease, first-line therapy for metastatic disease or neoadjuvant/adjuvant therapy)

Target Audience
This activity is intended for medical and radiation oncologists, hematologists, hematology-oncology fellows, general and breast surgeons and other healthcare providers involved in the treatment of breast cancer.

Learning Objectives
At the conclusion of this activity, participants should be able to

  • Assess available Phase III data with HER2-directed antibody-drug conjugate (ADC) therapy as a component of neoadjuvant therapy for patients with high-risk localized breast cancer, and consider the current clinical role of this novel treatment approach.
  • Evaluate current research evidence with HER2-directed ADC therapy for patients with HER2-positive localized breast cancer and residual disease after neoadjuvant treatment.
  • Appraise available research data and relevant clinical and biological factors guiding the selection of first-line therapy for patients with newly diagnosed HER2-positive metastatic breast cancer (mBC).
  • Review published research supporting TROP2-directed ADC therapy in combination with anti-PD-1/PD-L1 antibodies for triple-negative mBC, and use this information to make appropriate treatment recommendations.
  • Evaluate published clinical research findings with TROP2-directed ADC monotherapy for HR-positive and triple-negative mBC, and optimally incorporate these agents into clinical care.
  • Assess the biological rationale for the evaluation of HER2-directed ADCs for HER2-low and HER2-ultralow mBC, and identify patients appropriate for this treatment approach.
  • Discern the side effects and toxicities associated with FDA-approved ADCs in the care of patients with breast cancer, and identify strategies to manage and mitigate these complications.
  • Recall ongoing trials evaluating the potential role of novel ADC-based strategies in the localized and metastatic settings, and appropriately counsel patients with breast cancer regarding enrollment.

CME Credit Form
A CME credit link will be given to each participant as part of the meeting course materials.

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 live activity for a maximum of 2 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

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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.

Unlabeled/Unapproved Uses Notice
This educational activity may 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 provider or grantors.

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 will 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:

Prof Curigliano — Advisory Committees, Consulting Agreements and Speakers Bureaus: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Gilead Sciences Inc, Lilly, Menarini Group, Novartis, Pfizer Inc; Data and Safety Monitoring Boards/Committees: Roche Laboratories Inc. Dr Hamilton — 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. Prof Harbeck — Consulting Agreements: Exact Sciences Corporation, Sandoz Inc, a Novartis Division; Data and Safety Monitoring Boards/Committees: Gilead Sciences Inc, IQVIA, Roche Laboratories Inc; Speakers Bureaus: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Gilead Sciences Inc, Lilly, Menarini Group, MSD, Novartis, Pfizer Inc, Pierre Fabre, Roche Laboratories Inc, Stemline Therapeutics Inc, Viatris, Zuellig Pharma; Nonrelevant Financial Relationships: West German Study Group (WSG). Additional faculty to be announced.

MODERATOR
Dr Rugo — Advisory Committees and Consulting Agreements: BioNTech SE, Bristol Myers Squibb, Helsinn Therapeutics (US) Inc, Napo Pharmaceuticals; Contracted Research (Funding to City of Hope): Bicycle Therapeutics, Genentech, a member of the Roche Group, Merck, Stemline Therapeutics Inc; Contracted Research (Funding to Prior Institution, UCSF): Ambrx, AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, Lilly, Merck, Novartis, Pfizer Inc, Stemline Therapeutics Inc.

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.

Supporters
This activity is supported by educational grants from AstraZeneca Pharmaceuticals LP and Daiichi Sankyo Inc.

Hilton Chicago
720 South Michigan Avenue
Chicago, IL 60605
Phone: (312) 922-4400

Meeting Room
Continental Room A (Lobby Level)

Directions
The Hilton Chicago hotel is located just 5 minutes (2.5 miles) north of the McCormick Place convention center, where the ASCO Annual Meeting is taking place.

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See you on Monday, Jun 1

Format:

Chicago, IL
Date & Time:

Monday, Jun 1 7:00 PM — 9:00 PM CT

Managing Hyperglycemia in Patients with Breast Cancer Receiving Agents Targeting the PI3K/AKT/PTEN Pathway

Accreditation types: 1.5 ABIM MOC, ABS MOC, CME

Expires: March 2027

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Faculty

Jamie Carroll

Faculty

Jamie Carroll

APRN, MSN, CNP

Mayo Clinic Rochester, Minnesota

Assistant Professor, Oncology

Professor Giuseppe Curigliano

Faculty

Professor Giuseppe Curigliano

MD, PhD

University of Milano European Institute of Oncology Milano, Italy

Clinical Director Division of Early Drug Development for Innovative Therapy Co-Chair, Cancer Experimental Therapeutics Program Department of Oncology and Hemato-Oncology

Marie E McDonnell

Faculty

Marie E McDonnell

MD

Brigham and Women’s Hospital Boston, Massachusetts

Associate Professor of Medicine Harvard Medical School Director, Diabetes Program

Hope S Rugo

Faculty

Hope S Rugo

MD

City of Hope Comprehensive Cancer Center Duarte, California

Director, Women’s Cancers Program Division Chief, Breast Medical Oncology Professor, Department of Medical Oncology and Therapeutics Research

UCSF

Professor Emeritus

TARGET AUDIENCE
This program is intended for medical oncologists, breast surgeons, radiation oncologists and other healthcare professionals involved in the diagnosis and treatment of breast cancer.

LEARNING OBJECTIVES

  • Evaluate relevant biological, patient and treatment-related factors to personalize the selection and sequencing of therapy for individuals diagnosed with hormone receptor (HR)-positive, HER2-negative metastatic breast cancer (mBC) harboring PI3K/AKT/PTEN pathway abnormalities.
  • Appreciate the pathophysiology, frequency and severity of hyperglycemia associated with the administration of various agents targeting the PI3K/AKT/PTEN pathway in HR-positive, HER2-negative mBC.
  • Recall strategies commonly employed to mitigate and manage hyperglycemia in individuals receiving treatment with agents targeting the PI3K/AKT/PTEN pathway, and use this information to appropriately intervene when this side effect is suspected or diagnosed.
  • Appraise the role of multidisciplinary specialists such as endocrinologists in the diagnosis and management of hyperglycemia associated with agents targeting the PI3K/AKT/PTEN pathway, and effectively collaborate with these clinicians to offer best-practice care for patients at high risk for or with a suspected or confirmed diagnosis of this toxicity.

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 1.5 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 1.5 (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) — CONTINUOUS CERTIFICATION (CC)
Successful completion of these CME activities, which includes participation in the evaluation component 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 Proceedings: 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/DiabetologyERPosmBC2026/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 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:

Jamie Carroll, APRN, MSN, CNP
Assistant Professor, Oncology
Mayo Clinic
Rochester, Minnesota

Consulting Agreements: AstraZeneca Pharmaceuticals LP, Lilly, Novartis.

Professor Giuseppe Curigliano, MD, PhD
Clinical Director
Division of Early Drug Development for Innovative Therapy
Co-Chair, Cancer Experimental Therapeutics Program
Department of Oncology and Hemato-Oncology
University of Milano
European Institute of Oncology
Milano, Italy

Advisory Committees, Consulting Agreements and Speakers Bureaus: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Gilead Sciences Inc, Lilly, Menarini Group, Novartis, Pfizer Inc; Data and Safety Monitoring Boards/Committees: Roche Laboratories Inc.

Marie E McDonnell, MD
Associate Professor of Medicine
Harvard Medical School
Director, Diabetes Program
Brigham and Women’s Hospital
Boston, Massachusetts

Contracted Research: Abbott.

Hope S Rugo, MD
Director, Women’s Cancers Program
Division Chief, Breast Medical Oncology
Professor, Department of Medical Oncology
and Therapeutics Research
City of Hope Comprehensive Cancer Center
Duarte, California
Professor Emeritus, UCSF

Advisory Committees and Consulting Agreements: BioNTech SE, Bristol Myers Squibb, Helsinn Therapeutics (US) Inc, Napo Pharmaceuticals; Contracted Research (Funding to City of Hope): Bicycle Therapeutics, Genentech, a member of the Roche Group, Stemline Therapeutics Inc; Contracted Research (Funding to Prior Institution, UCSF): Ambrx Inc, AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, Lilly, Merck, Novartis, Pfizer Inc, 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, 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 grantor.

These activities are supported by an educational grant from AstraZeneca Pharmaceuticals LP.

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.

American Diabetes Association Professional Practice Committee for Diabetes. Pharmacologic approaches to glycemic treatment: Standards of care in diabetes — 2026. Diabetes Care 2026;49(Suppl 1):183-215. Abstract

André F et al. Alpelisib plus fulvestrant for PIK3CA-mutated, hormone receptor-positive, human epidermal growth factor receptor-2-negative advanced breast cancer: Final overall survival results from SOLAR-1. Ann Oncol 2021;32(2):208-17. Abstract

Cheung Y-MM et al. A targeted approach to phosphoinositide-3-kinase/Akt/mammalian target of rapamycin-induced hyperglycemia. Curr Probl Cancer 2022;46(1):100776. Abstract

Gallagher EJ et al. Managing hyperglycemia and rash associated with alpelisib: Expert consensus recommendations using the Delphi technique. NPJ Breast Cancer 2024;10(1):12. Abstract

Iyengar NM et al. Optimizing clinical monitoring and management guidelines for capivasertib in HR-positive/HER2-negative advanced breast cancer: Expert opinion. NPJ Breast Cancer 2025;12(1):16. Abstract

Jhaveri KL et al. Imlunestrant with or without abemaciclib in advanced breast cancer. N Engl J Med 2025;392(12):1189-202. Abstract

Kotwal A et al. Patient-centered diabetes care of cancer patients. Curr Diab Rep 2021;21(12):62. Abstract

Llombart-Cussac A et al. Preventing alpelisib-related hyperglycaemia in HR+/HER2-/PIK3CA-mutated advanced breast cancer using metformin (METALLICA): A multicentre, open-label, single-arm, phase 2 trial. EClinicalMedicine 2024:71:102520. Abstract

Rugo H et al. Capivasertib and fulvestrant for patients with hormone receptor-positive advanced breast cancer: Characterization, time course, and management of frequent adverse events from the phase III CAPItello-291 study. ESMO Open 2024;9(9):103697. Abstract

Turner NC et al. Capivasertib in hormone receptor-positive advanced breast cancer. N Engl J Med 2023;388(22):2058-70. Abstract

Investigators Discuss the Optimal Management of HER2-Positive Breast Cancer

Accreditation types: 2.25 ABIM MOC, ABS MOC, CME

Expires: January 2027

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Faculty

Professor Giuseppe Curigliano

Faculty

Professor Giuseppe Curigliano

MD, PhD

University of Milano European Institute of Oncology Milano, Italy

Clinical Director Division of Early Drug Development for Innovative Therapy Co-Chair, Cancer Experimental Therapeutics Program Department of Oncology and Hemato-Oncology

Nadia Harbeck

Faculty

Nadia Harbeck

MD, PhD

LMU University Hospital Munich, Germany

Breast Center Director Department of Obstetrics and Gynecology and Comprehensive Cancer Center Munich

Ian E Krop

Faculty

Ian E Krop

MD, PhD

Yale Cancer Center New Haven, Connecticut

Professor of Internal Medicine Associate Cancer Center Director for Clinical Research

Nancy U Lin

Faculty

Nancy U Lin

MD

Harvard Medical School Boston, Massachusetts

Associate Chief, Division of Breast Oncology Dana-Farber Cancer Institute Professor of Medicine

Joyce O’Shaughnessy

Faculty

Joyce O’Shaughnessy

MD

Baylor University Medical Center

Celebrating Women Chair in Breast Cancer Research

Sarah Cannon Research Institute Dallas, Texas

Chair, Breast Disease Committee

TARGET AUDIENCE
This program is intended for medical oncologists, breast surgeons, radiation oncologists and other healthcare professionals involved in the diagnosis and treatment of breast cancer.

LEARNING OBJECTIVES

  • Appreciate the key clinical variables affecting preoperative therapy and the selection of a specific neoadjuvant regimen for patients with HER2-overexpressing localized breast cancer, and integrate this information into treatment decision-making.
  • Assess available Phase III data with HER2-directed antibody-drug conjugates as a component of neoadjuvant and adjuvant therapy for patients with high-risk localized disease, and consider the potential clinical role of this novel approach.
  • Evaluate published research data to guide the selection and duration of adjuvant and/or extended-adjuvant therapy for patients with HER2-overexpressing localized breast cancer.
  • Appraise available research data and clinical and biological factors to guide the selection of first-line therapy for patients with newly diagnosed HER2-positive metastatic breast cancer (mBC).
  • Appreciate the key clinical variables affecting the selection and sequencing of therapy for patients with relapsed/refractory HER2-positive mBC, and use this information to personalize treatment recommendations.
  • Design an optimal approach to the care of patients with HER2-positive breast cancer and CNS metastases, evaluating the implications of prior treatment exposure, symptomatology, extent of disease and other factors.
  • Recognize common and rare side effects associated with approved anti-HER2 agents, and use this information to develop supportive management plans for patients undergoing treatment for HER2-positive breast cancer.
  • Assess ongoing clinical research studies evaluating novel agents and treatment strategies under development for HER2-positive breast cancer, and counsel patients regarding the potential benefits of trial 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
Video Program: 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) — CONTINUOUS 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/SanAntonioHER2PosBC25/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 conflicts of interest 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:

Professor Giuseppe Curigliano, MD, PhD
Clinical Director
Division of Early Drug Development for Innovative Therapy
Co-Chair, Cancer Experimental Therapeutics Program
Department of Oncology and Hemato-Oncology
University of Milano
European Institute of Oncology
Milano, Italy

Advisory Committees, Consulting Agreements and Speakers Bureaus: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Gilead Sciences Inc, Lilly, Menarini Group, Novartis, Pfizer Inc; Data and Safety Monitoring Boards/Committees: Roche Laboratories Inc.

Nadia Harbeck, MD, PhD
Breast Center Director
Department of Obstetrics and Gynecology
and Comprehensive Cancer Center Munich
LMU University Hospital
Munich, Germany

Consulting Agreements: Exact Sciences Corporation, Sandoz Inc, a Novartis Division; Data and Safety Monitoring Boards/Committees: Gilead Sciences Inc, IQVIA, Roche Laboratories Inc; Speakers Bureaus: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Gilead Sciences Inc, Lilly, Menarini Group, MSD, Novartis, Pfizer Inc, Pierre Fabre, Roche Laboratories Inc, Stemline Therapeutics Inc, Viatris, Zuellig Pharma; Nonrelevant Financial Relationships: West German Study Group (WSG).

Ian E Krop, MD, PhD
Professor of Internal Medicine
Associate Cancer Center Director for Clinical Research
Yale Cancer Center
New Haven, Connecticut

Advisory Committees: AstraZeneca Pharmaceuticals LP, Bristol Myers Squibb, Daiichi Sankyo Inc, EMD Serono Inc, Genentech, a member of the Roche Group, Lilly, Seagen Inc; Consulting Agreements: ALX Oncology, AstraZeneca Pharmaceuticals LP, Genentech, a member of the Roche Group, Halda Therapeutics, Novartis; Contracted Research: Pfizer Inc; Data and Safety Monitoring Boards/Committees: Novartis, Seagen Inc.

Nancy U Lin, MD
Associate Chief, Division of Breast Oncology
Dana-Farber Cancer Institute
Professor of Medicine
Harvard Medical School
Boston, Massachusetts

Consulting Agreements: Artera, AstraZeneca Pharmaceuticals LP, Blueprint Medicines, Daiichi Sankyo Inc, Eisai Inc, Janssen Biotech Inc, Menarini Group, Olema Oncology, Seagen Inc, Shorla Oncology, Stemline Therapeutics Inc; Contracted Research: AstraZeneca Pharmaceuticals LP, Genentech, a member of the Roche Group, Merck, Olema Oncology, Pfizer Inc, Seagen Inc, Zion Pharmaceuticals; Travel: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Olema Oncology.

Joyce O’Shaughnessy, MD
Celebrating Women Chair in Breast Cancer Research
Baylor University Medical Center
Chair, Breast Disease Committee
Sarah Cannon Research Institute
Dallas, Texas

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, Merck, Mersana Therapeutics Inc, Natera Inc, Novartis, Pfizer Inc, Pierre Fabre, Puma Biotechnology Inc, RayzeBio Inc, Roche Laboratories Inc, Sanofi, Seagen Inc, Stemline Therapeutics Inc, Summit Therapeutics, Tempus, TerSera Therapeutics LLC.

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, 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, 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 conflicts of interest 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 AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, and Puma Biotechnology 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.

Prof Harbeck

Chan A et al. Final efficacy results of neratinib in HER2-positive hormone receptor-positive early-stage breast cancer from the phase III ExteNET trial. Clin Breast Cancer 2021;21(1):80-91.e7. Abstract

Early Breast Cancer Trialists’ Collaborative group (EBCTCG). Trastuzumab for early-stage, HER2-positive breast cancer: A meta-analysis of 13 864 women in seven randomised trials. Lancet Oncol 2021;22(8):1139-50. Abstract

Geyer CE Jr et al. Survival with trastuzumab emtansine in residual HER2-positive breast cancer. N Engl J Med 2025;392(3):249-57. Abstract

Geyer CE Jr et al. Trastuzumab deruxtecan (T-DXd) vs trastuzumab emtansine (T-DM1) in patients (pts) with high-risk human epidermal growth factor receptor 2–positive (HER2+) primary breast cancer (BC) with residual invasive disease after neoadjuvant therapy (tx): Interim analysis of DESTINY-Breast05. ESMO 2025;Abstract LBA1.

Gnant M et al. Efficacy of neratinib in hormone receptor-positive patients who initiated treatment within 1 year of completing trastuzumab-based adjuvant therapy in HER2+ early-stage breast cancer: Subgroup analyses from the phase III ExteNET trial. San Antonio Breast Cancer Symposium 2018;Abstract P2-13-01.

Harbeck N et al. DESTINY-Breast11: Neoadjuvant trastuzumab deruxtecan alone (T-DXd) or followed by paclitaxel + trastuzumab + pertuzumab (T-DXd-THP) vs SOC for high-risk HER2+ early breast cancer (eBC). ESMO 2025;Abstract 291O.

Harbeck N et al. Neoadjuvant dynamic marker-adjusted personalized therapy comparing trastuzumab-deruxtecan versus pacli-/docetaxel + carboplatin + trastuzumab + pertuzumab in HER2+ early breast cancer: WSG-ADAPT-HER2-IV. ASCO 2024;Abstract TPS631.

Harbeck N et al. A look at current and potential treatment approaches for hormone receptor-positive, HER2-negative early breast cancer. Cancer 2022;128 Suppl 11:2209-23. Abstract

Loibl S et al. Adjuvant pertuzumab or placebo + trastuzumab + chemotherapy (P or Pla + T + CT) in patients (pts) with early HER2-positive operable breast cancer in APHINITY: Final analysis at 11.3 years’ median follow-up. ESMO Breast 2025;Abstract LBA1.

Loibl S et al. Early breast cancer: ESMO clinical practice guideline for diagnosis, treatment and follow-up. Ann Oncol 2024;35(2):159-82. Abstract

Loibl S et al. Phase III study of adjuvant ado-trastuzumab emtansine vs trastuzumab for residual invasive HER2-positive early breast cancer after neoadjuvant chemotherapy and HER2-targeted therapy: KATHERINE final IDFS and updated OS analysis. San Antonio Breast Cancer Symposium 2023;Abstract GS03-12.

Lüftner DI et al. Extended adjuvant neratinib in HER2+/HR+ early breast cancer in clinical routine: Final results from the multi-national, prospective, observational study ELEANOR. ESMO 2025;Abstract 299P.

Tolaney SM et al. Adjuvant paclitaxel and trastuzumab for node-negative, HER2-positive breast cancer: Final 10-year analysis of the open-label, single-arm, phase 2 APT trial. Lancet Oncol 2023;24(3):273-85. Abstract

van Mackelenbergh MT et al. Pathologic complete response and individual patient prognosis after neoadjuvant chemotherapy plus anti-human epidermal growth factor receptor 2 therapy of human epidermal growth factor receptor 2-positive early breast cancer. J Clin Oncol 2023;41(16):2998-3008. Abstract

Prof Curigliano

Cortés J et al. DEMETHER: A single-arm phase II trial to evaluate the efficacy & safety of subcutaneous pertuzumab & trastuzumab maintenance after induction treatment w/ trastuzumab deruxtecan (T-DXd) for previously untreated HER2-positive advanced breast cancer. San Antonio Breast Cancer Symposium 2024;Abstract P5-03-11.

Dieras V et al. HER2CLIMB-05: A phase 3 study of tucatinib versus placebo in combination with trastuzumab and pertuzumab as first-line maintenance therapy for HER2+ metastatic breast cancer. J Clin Oncol 2025;[Online ahead of print]. Abstract

Gennari A et al. ESMO clinical practice guideline for the diagnosis, staging and treatment of patients with metastatic breast cancer. Ann Oncol;32(12):1475-1495. Abstract

Hamilton E et al. Her2climb-05: A randomized, double-blind, phase 3 study of tucatinib versus placebo in combination with trastuzumab and pertuzumab as maintenance therapy for her2+ metastatic breast cancer. San Antonio Breast Cancer Symposium 2025;Abstract GS1-01.

Loibl S et al. Trastuzumab deruxtecan (T-DXd) + pertuzumab (P) vs taxane + trastuzumab + pertuzumab (THP) for patients (pts) with HER2+ advanced/metastatic breast cancer (a/mBC): Additional analyses of DESTINY-Breast09 in key subgroups of interest. ESMO 2025;Abstract LBA18.

Swain SM et al. A phase III study of maintenance inavolisib or placebo + pertuzumab + trastuzumab following induction with pertuzumab + trastuzumab + a taxane in patients (pts) with PIK3CA-mutated, HER2-positive advanced breast cancer (HER2+ aBC). ASCO 2024;Abstract TPS1124.

Vaz-Luis IV et al. Health-related quality of life (HRQoL) from the PATINA trial (AFT-38): Impact of adding palbociclib to HER2 and endocrine therapy (ET) after induction in HR+/HER2+ metastatic breast cancer (MBC). ESMO 2025;Abstract 485MO.

Dr Lin

André F et al. A pooled analysis of trastuzumab deruxtecan in patients with human epidermal growth factor receptor 2 (HER2)-positive metastatic breast cancer with brain metastases. Ann Oncol 2024;35(12):1169-80. Abstract

Bartsch R et al. Results of a patient-level pooled analysis of three studies of trastuzumab deruxtecan in HER2-positive breast cancer with active brain metastasis. ESMO Open 2025;10(1):104092. Abstract

Collet L et al. Clinical outcome of patients with isolated central nervous system progression on first-line pertuzumab and trastuzumab treatment for HER2-positive metastatic breast cancer in a real-life cohort. Breast Cancer. 2023;30(2):329-41. Abstract

Dijkers EC et al. Biodistribution of 89Zr-trastuzumab and PET imaging of HER2-positive lesions in patients with metastatic breast cancer. Clin Pharmacol Ther 2010;87(5):586-92. Abstract

Harbeck N et al. Trastuzumab deruxtecan in HER2-positive advanced breast cancer with or without brain metastases: A phase 3b/4 trial. Nat Med 2024;30(12):3717-27. Abstract

Hurvitz SA et al. Tucatinib and trastuzumab emtansine for patients with previously treated HER2-positive locally advanced and metastatic breast cancer: Primary analysis of the randomized phase III trial HER2CLIMB-02. Ann Oncol 2025;[Online ahead of print]. Abstract

Hurvitz SA et al. A pooled analysis of trastuzumab deruxtecan (T-DXd) in patients (pts) with HER2-positive (HER2+) metastatic breast cancer (mBC) with brain metastases (BMs) from DESTINY-Breast (DB) -01, -02, and -03. ESMO 2023;Abstract 377O.

Hurvitz SA et al. HER2CLIMB-02: Randomized, double-blind phase 3 trial of tucatinib and trastuzumab emtansine for previously treated HER2-positive metastatic breast cancer. San Antonio Breast Cancer Symposium 2023;Abstract GS01-10.

Kim GM et al. Clinical impact of routine MRI screening for brain metastases in patients with HER2 positive or triple negative metastatic breast cancer. San Antonio Breast Cancer Symposium 2023;Abstract PO2-27-09.

Koide Y et al. Impact of concurrent antibody-drug conjugates and radiotherapy on symptomatic radiation necrosis in breast cancer patients with brain metastases: A multicenter retrospective study. J Neurooncol 2024;168(3):415-23. Abstract

Lin N et al. Trastuzumab deruxtecan (T-DXd) in patients (pts) with HER2+ advanced/metastatic breast cancer (mBC) with or without brain metastases (BM): DESTINYBreast-12 primary results. ESMO 2024;Abstract LBA18.

Lin NU et al. Tucatinib vs placebo, both in combination with trastuzumab and capecitabine, for previously treated ERBB2 (HER2)-positive metastatic breast cancer in patients with brain metastases: Updated exploratory analysis of the HER2CLIMB randomized clinical trial. JAMA Oncol 2023;9(2):197-205. Abstract

Lin NU et al. Updated results of tucatinib vs placebo added to trastuzumab and capecitabine for patients with previously treated HER2-positive metastatic breast cancer with brain metastases (HER2CLIMB). San Antonio Breast Cancer Symposium 2021;Abstract PD4-04.

Lin NU et al. Intracranial efficacy and survival with tucatinib plus trastuzumab and capecitabine for previously treated HER2-positive breast cancer with brain metastases in the HER2CLIMB trial. J Clin Oncol 2020;38(23):2610-9. Abstract

McTyre ER et al. Multi-institutional validation of brain metastasis velocity, a recently defined predictor of outcomes following stereotactic radiosurgery. Radiother Oncol 2020’142:168-74. Abstract

Rashid NS et al. Impact of brain metastasis size at the time of radiotherapy on local control and radiation necrosis. J Neurooncol 2025;173(3):609-17. Abstract

Sammons SL et al. Prevalence by therapy line and incidence of breast cancer brain metastases in 18 075 patients. J Natl Cancer Inst 2025;117(8):1565-72. Abstract

Sperduto PW et al. Survival in patients with brain metastases: Summary report on the updated diagnosis-specific graded prognostic assessment and definition of the eligibility quotient. J Clin Oncol 2020;38(32):3773-84. Abstract

Dr Krop

Cortés J et al. Trastuzumab deruxtecan versus trastuzumab emtansine in HER2-positive metastatic breast cancer: Long-term survival analysis of the DESTINY-Breast03 trial. Nat Med 2024;30(8):2208-15. Abstract

Curigliano G et al. Tucatinib versus placebo added to trastuzumab and capecitabine for patients with pretreated HER2+ metastatic breast cancer with and without brain metastases (HER2CLIMB): Final overall survival analysis. Ann Oncol 2022;33(3):321-9. Abstract

Hurvitz SA et al. Tucatinib and trastuzumab emtansine for patients with previously treated HER2-positive locally advanced and metastatic breast cancer: Primary analysis of the randomized phase III trial HER2CLIMB-02. Ann Oncol 2025:[Online ahead of print]. Abstract

Jhaveri K et al. Neratinib + fulvestrant + trastuzumab for HR-positive, HER2-negative, HER2-mutant metastatic breast cancer: Outcomes and biomarker analysis from the SUMMIT trial. Ann Oncol 2023;34(10):885-98. Abstract

Murthy RK et al. Tucatinib, trastuzumab, and capecitabine for HER2-positive metastatic breast cancer. N Engl J Med 2020;382(7):597-609. Abstract

Murthy RK et al. Tucatinib vs placebo, both combined with capecitabine and trastuzumab, for patients with pretreated HER2-positive metastatic breast cancer with and without brain metastases (HER2CLIMB). San Antonio Breast Cancer Symposium 2019;Abstract GS1-01.

Nordstrom JL et al. Anti-tumor activity and toxicokinetics analysis of MGAH22, an anti-HER2 monoclonal antibody with enhanced Fcγ receptor binding properties. Breast Cancer Res 2011;13(6):R123. Abstract

Rugo HS et al. Efficacy of margetuximab vs trastuzumab in patients with pretreated ERBB2-positive advanced breast cancer: A phase 3 randomized clinical trial. JAMA Oncol 2021;7(4):573-84. Abstract

Saura C et al. Trastuzumab deruxtecan in previously treated patients with HER2-positive metastatic breast cancer: Updated survival results from a phase II trial (DESTINY-Breast01). Ann Oncol 2024;35(3):302-7. Abstract

Saura C et al. Neratinib plus capecitabine versus lapatinib plus capecitabine in HER2-positive metastatic breast cancer previously treated with ≥ 2 HER2-directed regimens: Phase III NALA trial. J Clin Oncol 2020;38(27):3138-49. Abstract

Song E et al. SHR-A1811 versus pyrotinib plus capecitabine in human epidermal growth factor receptor 2-positive (HER2+) advanced/metastatic breast cancer (BC): A multicenter, open-label, randomized, phase III study (HORIZON-Breast01). ESMO 2025;Abstract LBA19.

Yao H et al. Safety, efficacy, and pharmacokinetics of SHR-A1811, a human epidermal growth factor receptor 2-directed antibody-drug conjugate, in human epidermal growth factor receptor 2-expressing or mutated advanced solid tumors: A global phase I trial. J Clin Oncol 2024;42(29):3453-65. Abstract

Weisser NE et al. An anti-HER2 biparatopic antibody that induces unique HER2 clustering and complement-dependent cytotoxicity. Nat Commun 2023;14(1):1394. Abstract

Dr O’Shaughnessy

Bardia A et al. Trastuzumab deruxtecan after endocrine therapy in metastatic breast cancer. N Engl J Med 2024;391(22):2110-22. Abstract

Canellas A et al. Trastuzumab deruxctecan (T-DXd) associated interstitial lung disease (ILD) in a large real-world French cohort of patients with HER2-driven breast cancer and other malignancies. ESMO 2024;Abstract 346MO.

Curigliano G et al. Trastuzumab deruxtecan (T-DXd) vs physician’s choice of chemotherapy (TPC) in patients (pts) with hormone receptor-positive (HR+), human epidermal growth factor receptor 2 (HER2)-low or HER2-ultralow metastatic breast cancer (mBC) with prior endocrine therapy (ET): Primary results from DESTINY-Breast06 (DB-06). ASCO 2024;Abstract LBA1000.

Lebow ES et al. Symptomatic necrosis with antibody-drug conjugates and concurrent stereotactic radiotherapy for brain metastases. JAMA Oncol 2023;9(12):1729-33. Abstract

Modi S et al. Trastuzumab deruxtecan (T-DXd) versus treatment of physician’s choice (TPC) in patients (pts) with HER2-low unresectable and/or metastatic breast cancer (mBC): Updated survival results of the randomized, phase III DESTINY-Breast04 study. ESMO 2023;Abstract 376MO.

Moy B et al. Association between treatment duration and overall survival in early-stage HER2+ breast cancer patients receiving extended adjuvant therapy with neratinib in the ExteNET trial. ASCO 2021;Abstract 540.

Natsuhara KH et al. Treatment rechallenge after trastuzumab-deruxtecan–related interstitial lung disease: A multi-institution cohort study. ASCO 2025;Abstract 1015.

Navari RM et al. Olanzapine for the prevention of chemotherapy-induced nausea and vomiting. N Engl J Med 2016;375(2):134-42. Abstract

Powell CA et al. Pooled analysis of drug-related interstitial lung disease and/or pneumonitis in nine trastuzumab deruxtecan monotherapy studies. ESMO Open 2022;7(4):100554. Abstract

Rugo HS et al. Pooled analysis of trastuzumab deruxtecan (T-DXd) retreatment (RTx) after recovery from grade (Gr) 1 interstitial lung disease/pneumonitis (ILD). ESMO Breast 2024;Abstract 267MO.

Rugo HS et al. Real-world perspectives and practices for pneumonitis/interstitial lung disease associated with trastuzumab deruxtecan use in human epidermal growth factor receptor 2-expressing metastatic breast cancer. JCO Oncol Pract 2023;19(8):539-46. Abstract

Rugo HS et al. Trastuzumab deruxtecan (T-DXd) vs treatment of physician’s choice (TPC) in patients (pts) with HER2-low unresectable and/or metastatic breast cancer (mBC): A detailed safety analysis of the randomized, phase III DESTINY-Breast04 trial. ESMO Breast 2023;Abstract 185O.

Rugo HS et al. Optimizing treatment management of trastuzumab deruxtecan in clinical practice of breast cancer. ESMO Open 2022;7(4):100553. Abstract

  • HER2
  • San Antonio

2025 ESMO Annual Meeting — Breast Cancer Highlights

Accreditation types: 1.75 ABIM MOC, ABS MOC, CME

Expires: December 2026

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Faculty

Professor Giuseppe Curigliano

Professor Giuseppe Curigliano

MD, PhD

University of Milano European Institute of Oncology, Milano, Italy

Clinical Director, Division of Early Drug Development for Innovative Therapy, Co-Chair, Cancer Experimental Therapeutics Program, Department of Oncology and Hemato-Oncology

Priyanka Sharma

Priyanka Sharma

MD

The University of Kansas Cancer Center, Westwood, Kansas

Frank B Tyler Professor in Cancer Research, Division of Medical Oncology, Department of Internal Medicine, Co-Program Leader, Drug Discovery, Delivery and Experimental Therapeutics Program

TARGET AUDIENCE
This program is intended for medical oncologists, breast surgeons, radiation oncologists and other healthcare professionals involved in the diagnosis and treatment of breast cancer.

LEARNING OBJECTIVES

  • Evaluate recently presented clinical research findings to determine their effect on the current management of localized or metastatic breast cancer (mBC).
  • Appraise published efficacy and safety data from randomized clinical trials evaluating the use of CDK4/6 inhibitors for hormone receptor (HR)-positive localized or metastatic breast cancer in order to counsel patients appropriately regarding the optimal clinical use of these agents.
  • Recognize the frequency of PIK3CA/AKT1/PTEN alterations and ESR1 mutations in patients with HR-positive mBC, and employ evidence-based approaches designed to target these aberrations.
  • Understand the mechanism of action of, published research findings with and current and future clinical role of oral selective estrogen receptor degraders for patients with HR-positive mBC harboring ESR1 mutations.
  • Evaluate published research findings to effectively inform the selection and sequencing of available therapeutic agents and regimens for patients with HER2-positive localized and metastatic breast cancer.
  • Appreciate the incidence, characteristics and clinical relevance of HER2-low or HER2-ultralow mBC, and understand available research findings with HER2-directed antibody-drug conjugates for these patients.
  • Interrogate published Phase III research documenting the efficacy of TROP2-directed antibody-drug conjugates for patients with mBC to determine the current and potential clinical applicability of these approaches.
  • Assess the mechanisms of action of, early data with and ongoing clinical trials evaluating other novel agents and treatment strategies under development for localized and metastatic breast cancer.

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 1.75 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 1.75 (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) — CONTINUOUS 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/PostESMOBreast25/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 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:

Professor Giuseppe Curigliano, MD, PhD
Clinical Director
Division of Early Drug Development for Innovative Therapy
Co-Chair, Cancer Experimental Therapeutics Program
Department of Oncology and Hemato-Oncology
University of Milano
European Institute of Oncology
Milano, Italy

Advisory Committees, Consulting Agreements and Speakers Bureaus: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Gilead Sciences Inc, Lilly, Menarini Group, Novartis, Pfizer Inc; Data and Safety Monitoring Boards/Committees: Roche Laboratories Inc.

Priyanka Sharma, MD
Frank B Tyler Professor in Cancer Research
Division of Medical Oncology, Department of Internal Medicine
Co-Program Leader
Drug Discovery, Delivery and Experimental Therapeutics Program
The University of Kansas Cancer Center
Westwood, Kansas

Advisory Committees: AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Gilead Sciences Inc, Menarini Group, Merck, Novartis, Pfizer Inc, Stemline Therapeutics Inc; Contracted Research: Bristol Myers Squibb, Gilead Sciences Inc, Novartis; Data and Safety Monitoring Boards/Committees: Jazz Pharmaceuticals 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, 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 AstraZeneca Pharmaceuticals LP, Daiichi Sankyo Inc, Genentech, a member of the Roche Group, Gilead Sciences Inc, and Lilly.

Release date: December 2025
Expiration date: December 2026

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

Cortés JC et al. Primary results from ASCENT-03: A randomized phase III study of sacituzumab govitecan (SG) vs chemotherapy (chemo) in patients (pts) with previously untreated advanced triple-negative breast cancer (TNBC) who are unable to receive PD-(L)1 inhibitors (PD-[L]1i). ESMO 2025;Abstract LBA20.

Crown JP et al. Adjuvant ribociclib (RIB) plus nonsteroidal aromatase inhibitor (NSAI) in patients (pts) with HR+/HER2− early breast cancer (EBC): NATALEE 5-year outcomes. ESMO 2025;Abstract LBA14.

de Azambuja E et al. Patient-reported outcomes (PROs) with sacituzumab govitecan (SG) + pembrolizumab (pembro) vs chemotherapy (chemo) + pembro in patients (pts) with previously untreated PD-L1+ metastatic triple-negative breast cancer (mTNBC) in the phase 3 ASCENT-04/KEYNOTE-D19 study. ESMO 2025;Abstract LBA22.

Dent R et al. Datopotamab deruxtecan (Dato-DXd) vs chemotherapy (CT) in patients (pts) with locally recurrent inoperable or metastatic triple-negative breast cancer (TNBC) who are not candidates for PD-(L)1 inhibitor therapy: Primary results from the randomised, phase 3 TROPION-Breast02 trial. ESMO 2025;Abstract LBA21.

Fan Y et al. Sacituzumab tirumotecan (sac-TMT) vs investigator’s choice of chemotherapy (ICC) in previously treated locally advanced or metastatic hormone receptor-positive, HER2-negative (HR+/HER2-) breast cancer (BC): Results from the randomized, multi-center phase 3 OptiTROP-Breast02 study. ESMO 2025;Abstract LBA23.

Geyer CE et al. Trastuzumab deruxtecan (T-DXd) vs trastuzumab emtansine (T-DM1) in patients (pts) with high-risk human epidermal growth factor receptor 2–positive (HER2+) primary breast cancer (BC) with residual invasive disease after neoadjuvant therapy (tx): Interim analysis of DESTINY-Breast05. ESMO 2025;Abstract LBA1.

Harbeck N et al. DESTINY-Breast11: Neoadjuvant trastuzumab deruxtecan alone (T-DXd) or followed by paclitaxel + trastuzumab + pertuzumab (T-DXd-THP) vs SOC for high-risk HER2+ early breast cancer (eBC). ESMO 2025;Abstract 291O.

Hurvitz SA et al. Gedatolisib (geda) + fulvestrant ± palbociclib (palbo) vs fulvestrant in patients (pts) with HR+/ HER2-/PIK3CA wild-type (WT) advanced breast cancer (ABC): First results from VIKTORIA-1. ESMO 2025;Abstract LBA17.

Jhaveri KL et al. Imlunestrant plus abemaciclib versus fulvestrant plus abemaciclib in estrogen receptor positive (ER+), human epidermal growth factor receptor 2 negative (HER2-) advanced breast cancer (ABC): An indirect treatment comparison (ITC) of three phase 3 trials. ESMO 2025;Abstract 496P.

Johnston SRD et al. monarchE: Primary overall survival (OS) results of adjuvant abemaciclib + endocrine therapy (ET) for HR+, HER2-, high-risk early breast cancer (EBC). ESMO 2025;Abstract LBA13.

Llombart Cussac A et al. Preoperative window-of-opportunity study with giredestrant or tamoxifen (tam) in premenopausal women with estrogen receptor-positive (ER+)/human epidermal growth factor receptor 2-negative (HER2-) and Ki67≥10% early breast cancer (EBC): The EMPRESS study. ESMO 2025;Abstract 294MO.

Loibl S et al. Durvalumab in combination with neoadjuvant chemotherapy in early triple negative breast cancer (TNBC) — Long-term analysis from the GeparNuevo trial. ESMO 2025;Abstract 292MO.

Loibl S et al. Trastuzumab deruxtecan (T-DXd) + pertuzumab (P) vs taxane + trastuzumab + pertuzumab (THP) for patients (pts) with HER2+ advanced/metastatic breast cancer (a/mBC): Additional analyses of DESTINY-Breast09 in key subgroups of interest. ESMO 2025;Abstract LBA18.

Mayer E et al. Giredestrant (GIRE), an oral selective oestrogen receptor (ER) antagonist and degrader, + everolimus (E) in patients (pts) with ER-positive, HER2-negative advanced breast cancer (ER+, HER2– aBC) previously treated with a CDK4/6 inhibitor (i): Primary results of the phase III evERA BC trial. ESMO 2025;Abstract LBA16.

Mayer E et al. Patient-reported outcomes (PROs) from the SERENA-6 trial of camizestrant (CAMI) + CDK4/6 inhibitor (CDK4/6i) for emergent ESR1m during first-line (1L) endocrine-based therapy and ahead of disease progression in patients (pts) with HR+/HER2-advanced breast cancer (ABC). ESMO 2025;Abstract 486MO.

Rugo HS et al. Capivasertib plus fulvestrant as first and second-line endocrine-based therapy in PIK3CA/AKT1/PTEN-altered hormone receptor-positive advanced breast cancer: Subgroup analysis from the phase 3 CAPItello-291 trial. ESMO 2025;Abstract 526P.

Rugo HS et al. Interim analysis of giredestrant (GIRE) + inavolisib (INAVO) in MORPHEUS breast cancer (BC): A phase Ib/II study of GIRE treatment (rx) combinations in patients (pts) with estrogen receptor-positive (ER+), HER2-negative, locally advanced/metastatic BC (LA/mBC). ESMO 2025;Abstract 508P.