NEWS
CONFERENCES
MEDIA
PUBLICATIONS
CASE-BASED ROUNDTABLE
PARTNERS
RESOURCES
SUBSCRIBE

Your AI-Trained Oncology Knowledge Connection!

Opinion|Videos|August 12, 2024

KATHERINE Trial: Long-Term Outcomes of T-DM1 vs Trastuzumab in HER2+ Breast Cancer with Residual Disease

Author(s)Paolo Tarantino, MD

Dr. Tarantino summarize the trial's design comparing adjuvant T-DM1 versus trastuzumab for residual invasive disease post-neoadjuvant therapy. Discussions include efficacy comparisons, recent 5-year OS analysis results, and the significant IDFS benefits observed with T-DM1 over an 8+ year follow-up period.

Episodes in this series

Rebecca A. Shatsky, MD, an expert on breast cancer

EP. 1 Overview of HER2-Targeting Agents in Breast Cancer and Treatment Selection Approaches

Video 3 - "APHINITY Trial: Pertuzumab for Patients with HER2+ Breast Cancer"

EP. 2 APHINITY Trial: Pertuzumab for Patients with HER2+ Breast Cancer

Video 4 - "KATHERINE: Adjuvant T-DM1 vs Trastuzumab for Residual Invasive HER2+ Breast Cancer"

EP. 3 KATHERINE: Adjuvant T-DM1 vs Trastuzumab for Residual Invasive HER2+ Breast Cancer

Video 5 - "Exciting Developments in HER2+ Breast Cancer"

EP. 4 Exciting Developments in HER2+ Breast Cancer

Video 6 - "Current Approaches to Treatment Sequencing in HER2+ Breast Cancer"

EP. 5 Current Approaches to Treatment Sequencing in HER2+ Breast Cancer

Video 7 - "Unmet Needs and Future Directions in HER2+ Breast Cancer"

EP. 6 Unmet Needs and Future Directions in HER2+ Breast Cancer

Rebecca A. Shatsky, MD, an expert on breast cancer

EP. 7 Risk Stratification and Treatment Selection in HER2+ Breast Cancer: The Current Treatment Landscape and NCCN Guideline Recommendations

Rebecca A. Shatsky, MD, an expert on breast cancer

EP. 8 Long-Term Pertuzumab Outcomes in HER2+ Breast Cancer: Insights from APHINITY 8-Year Data and NeoSphere Pooled Analysis

Rebecca A. Shatsky, MD, an expert on breast cancer

EP. 9 KATHERINE Trial: Long-Term Outcomes of T-DM1 vs Trastuzumab in HER2+ Breast Cancer with Residual Disease

Rebecca A. Shatsky, MD, an expert on breast cancer

EP. 10 The Expanding Treatment Armamentarium and Clinical Decision Making: ExteNET, DestinyBREAST-05, HER2CLIMB, and Other Emerging Trials

Rebecca A. Shatsky, MD, an expert on breast cancer

EP. 11 Unmet Needs and Future Directions in HER2+ Breast Cancer Management

Video content above is prompted by the following:

Please summarize the KATHERINE trial design, which studied adjuvant T-DM1 versus trastuzumab for residual invasive disease after neoadjuvant therapy.
- How did efficacy data compare amongst the treatment arms?
- How did the recent 5-year OS analysis results presented at SABCS 2023 compare between arms?
- Please comment on the 8+ year follow up data, including IDFS data from this analysis.

Newsletter

Stay up to date on practice-changing data in community practice.

Related Content

LAT1-Targeted Chemo Shows Extended Survival in Leptomeningeal Disease

BySabrina Serani

December 4th 2025

New-Generation ADC Elicits Responses in Neoadjuvant HER2+ Breast Cancer

ByAndrea Eleazar, MHS

December 2nd 2025

From Probability to Precision: Defining the Role of ctDNA in Breast Cancer Care

ByStefania Morganti, MD, PhD

November 30th 2025

Leveraging ctDNA Status to Guide Treatment Strategies in Breast Cancer

ByStefania Morganti, MD, PhD

November 29th 2025

Circulating Tumor DNA in Breast Cancer: Clinical Utility and Limitations

ByStefania Morganti, MD, PhD

November 29th 2025

Latest CME

Breast Cancer Symposia in San Antonio

In-Person + Virtual Event

Breast Cancer Symposia in San Antonio

December 8-11, 2025

Community Practice Connections™: Community Oncologists’ Role in Selecting Optimal Oral SERD Treatment for HR+/HER2- Breast Cancer

Community Practice Connections™: Community Oncologists’ Role in Selecting Optimal Oral SERD Treatment for HR+/HER2- Breast Cancer

Virginia Kaklamani, MD, DSc; William J Gradishar, MD, FASCO, FACP

Community Practice Connections™: Case Discussions in TNBC… Navigating the Latest Advances and Impact of Disparities in Care

Community Practice Connections™: Case Discussions in TNBC… Navigating the Latest Advances and Impact of Disparities in Care

Tiffany A. Traina, MD, FASCO; Demetria Smith-Graziani, MD, MPH

Medical Crossfire®: Improving Survival in HR-Positive HER2-Negative Metastatic Breast Cancer – Advances in Selective Estrogen Receptor Targeting Therapies

Medical Crossfire®: Improving Survival in HR-Positive HER2-Negative Metastatic Breast Cancer – Advances in Selective Estrogen Receptor Targeting Therapies

Aditya Bardia, MD, MPH; Heather McArthur, MD, MPH; Sonya Reid, MD, MPH

Inaugural Brain & Spine Metastases Conference: Evolving Practice and Emerging Therapies

In-Person Event

Inaugural Brain & Spine Metastases Conference: Evolving Practice and Emerging Therapies

January 22, 2026

2nd Annual Hawaii Cancer Conference

In-Person Event

2nd Annual Hawaii Cancer Conference

January 24-25, 2026

42nd Annual CFS: Chemotherapy Foundation Symposium®: Innovative Cancer Therapy for Tomorrow

42nd Annual CFS: Chemotherapy Foundation Symposium®: Innovative Cancer Therapy for Tomorrow

Benjamin P. Levy, MD; John O. Mascarenhas, MD; Tiffany A. Traina, MD, FASCO; Cathy Eng, MD, FACP, FASCO; John P. Leonard, MD

The Inaugural Hawaii Breast Cancer: A Multidisciplinary Case-Based Conference

The Inaugural Hawaii Breast Cancer: A Multidisciplinary Case-Based Conference

Hope S. Rugo, MD, FASCO; Naoto T. Ueno, MD, PhD

43rd Annual Miami Breast Cancer Conference®

In-Person Event

43rd Annual Miami Breast Cancer Conference®

March 5-8, 2026

Medical Crossfire®: Translating Evidence to Clinical Practice in Early-Stage HR+, HER2– Breast Cancer

Medical Crossfire®: Translating Evidence to Clinical Practice in Early-Stage HR+, HER2– Breast Cancer

Joyce O’Shaughnessy, MD; William J. Gradishar, MD, FASCO, FACP; Heather McArthur, MD, MPH

Updates and Innovations in Nonopioid Pain Management Strategies for Breast Cancer Patients Postsurgical Intervention

Updates and Innovations in Nonopioid Pain Management Strategies for Breast Cancer Patients Postsurgical Intervention

Patrick I. Borgen, MD; Joshua Feinberg, MD; Gary Schwartz, MD, FASA

Community Practice Connections™: Navigating the Impact of HER2, HER3 and TROP2 from Early Stage to Advanced Breast Cancer Care

Community Practice Connections™: Navigating the Impact of HER2, HER3 and TROP2 from Early Stage to Advanced Breast Cancer Care

Hope S. Rugo, MD, FASCO; Sara Hurvitz, MD, FACP; Jennifer Litton, MD, MHCM; Heather McArthur, MD, MPH

Community Practice Connections™: Exploring Emerging Next-Generation Endocrine Therapies in ER+/HER2- Breast Cancer – Evaluating the Potential of Future of Treatment

Community Practice Connections™: Exploring Emerging Next-Generation Endocrine Therapies in ER+/HER2- Breast Cancer – Evaluating the Potential of Future of Treatment

Heather McArthur, MD, MPH; Komal Jhaveri, MD, FACP; Sara Tolaney, MD, MPH; Seth A. Wander, MD, PhD

Shaping Surgical Pathways: Revolutionizing Breast Cancer Care With Genetic Testing and Targeted Treatment

Shaping Surgical Pathways: Revolutionizing Breast Cancer Care With Genetic Testing and Targeted Treatment

Patrick I. Borgen, MD; E. Shelley Hwang, MD, MPH; Mark E. Robson, MD

Community Practice Connections™: Translating Evidence to Clinical Practice in Early-Stage HR+, HER2- Breast Cancer

Community Practice Connections™: Translating Evidence to Clinical Practice in Early-Stage HR+, HER2- Breast Cancer

Joyce O’Shaughnessy, MD; William Gradishar, MD, FASCO, FACP; Heather McArthur, MD, MPH; Eleni Anastasia Tousimis, MD, MBA, FACS

Community Practice Connections™: Optimizing Treatment Outcomes and Preserving Fertility in Premenopausal HR+ Breast Cancer

Community Practice Connections™: Optimizing Treatment Outcomes and Preserving Fertility in Premenopausal HR+ Breast Cancer

Rebecca Shatsky, MD; Kelly McCann, MD, PhD; Michelle L. Taylor, ANP-BC

Innovations in HR+/HER2– Metastatic Breast Cancer: Advancing Care Through PROTAC ER Degradation

Innovations in HR+/HER2– Metastatic Breast Cancer: Advancing Care Through PROTAC ER Degradation

Rita Nanda, MD; William Gradishar, MD, FASCO, FACP; Komal Jhaveri, MD, FACP; Kevin Kalinsky, MD, MS

Clinical Case Vignette Series™: 42nd Annual Miami Breast Cancer Conference®

Clinical Case Vignette Series™: 42nd Annual Miami Breast Cancer Conference®

Reshma Jagsi, MD, DPhil; Kevin Kalinsky, MD, MS; Hope S. Rugo, MD, FASCO; Alastair Thompson, MD, MBChB, BSc (Hons), FRCS (Ed), FACS

Breast Cancer Tumor Board®: Advancing Care in Metastatic Breast Cancer - The Evolving Role of Antibody-Drug Conjugates

Breast Cancer Tumor Board®: Advancing Care in Metastatic Breast Cancer - The Evolving Role of Antibody-Drug Conjugates

Aditya Bardia, MD, MPH, FASCO; Joyce O’Shaughnessy, MD; Hope S. Rugo, MD; Paolo Tarantino, MD

Medical Crossfire®: Integrating Next-Generation Endocrine Targeting Therapies to Improve Outcomes for Patients With HR+/HER2- Breast Cancer

Medical Crossfire®: Integrating Next-Generation Endocrine Targeting Therapies to Improve Outcomes for Patients With HR+/HER2- Breast Cancer

William J. Gradishar, MD, FASCO, FACP; Laura Huppert, MD; Yuan Yuan, MD, PhD

25th Annual International Congress on the Future of Breast Cancer® East

In-Person Event

25th Annual International Congress on the Future of Breast Cancer® East

July 10-11, 2026

25th Annual International Congress on the Future of Breast Cancer® West

In-Person Event

25th Annual International Congress on the Future of Breast Cancer® West

July 17-18, 2026

Breast Cancer Tumor Board: Targeting TROP2 – Innovations in Triple-Negative Breast Cancer Treatment

Breast Cancer Tumor Board: Targeting TROP2 – Innovations in Triple-Negative Breast Cancer Treatment

Joyce O’Shaughnessy, MD; Matthew P. Goetz, MD; Hope S. Rugo, MD, FASCO

Expert Guidance on Frequently Asked Questions Regarding the Use of ADCs in TNBC

Expert Guidance on Frequently Asked Questions Regarding the Use of ADCs in TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Virginia Kaklamani, MD, DSc

Evaluating the Latest Data and Ongoing Trials for Novel ADC Approaches in TNBC

Evaluating the Latest Data and Ongoing Trials for Novel ADC Approaches in TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD

Breaking Down the Rationale for Targeting TROP2 in TNBC

Breaking Down the Rationale for Targeting TROP2 in TNBC

Filipa Lynce, MD; Rita Nanda, MD

Dissecting Clinical Trial and Real-World Data for ADCs in TNBC

Dissecting Clinical Trial and Real-World Data for ADCs in TNBC

Filipa Lynce, MD; Rita Nanda, MD

Establishing the Rationale for ADC and ICI Combinations in TNBC

Establishing the Rationale for ADC and ICI Combinations in TNBC

Virginia Kaklamani, MD, DSc; Tiffany A. Traina, MD, FASCO

24th Annual International Congress on the Future of Breast Cancer® East

24th Annual International Congress on the Future of Breast Cancer® East

Joyce O’Shaughnessy, MD

PER Resource Center: Integrating Novel Approaches in TNBC – New Avenues for TROP2-Targeting ADCs and Beyond – Nursing

PER Resource Center: Integrating Novel Approaches in TNBC – New Avenues for TROP2-Targeting ADCs and Beyond – Nursing

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Virginia Kaklamani, MD, DSc; Filipa Lynce, MD; Rita Nanda, MD; Tiffany A. Traina, MD, FASCO

Show Me the Data®: New and Emerging Roles for Oral SERD Therapy in the Treatment of ER+/HER2– Breast Cancer

Show Me the Data®: New and Emerging Roles for Oral SERD Therapy in the Treatment of ER+/HER2– Breast Cancer

Ana C. Garrido-Castro, MD; Pedram Razavi, MD, PhD

Expert Roundtable and Panel Discussions: Current and Future Landscape of TNBC

Expert Roundtable and Panel Discussions: Current and Future Landscape of TNBC

Aditya Bardia, MD, MPH, FASCO; Erika P. Hamilton, MD; Tiffany A. Traina, MD, FASCO

(CME Track) Antibody–Drug Conjugates in Oncology: The Essentials of AE Management for Better Patient Outcomes

(CME Track) Antibody–Drug Conjugates in Oncology: The Essentials of AE Management for Better Patient Outcomes

Michelle L. Taylor, ANP-BC; Emely Alfaro, DNP, RN, CNS, OCN; Paige Griffith, CRNP; Beth Sandy, MSN, CRNP, FAPO

24th Annual School of Breast Oncology

In-Person Event

24th Annual School of Breast Oncology

November 5-7, 2026

9th Annual School of Nursing Oncology™

9th Annual School of Nursing Oncology™

Beth Faiman, PhD, MSN, APN-BC, BMTCN, AOCN, FAAN, FAPO; Beth Sandy, MSN, CRNP, FAPO; Lindsay Adkins, MSN, FNP-BC, BMTCN; Jeneth Aquino, DNP, FNP-BC; Casey Gormley, MSN, FNP-C, AOCNP; Heather J. Jackson, PhD, FNP-BC; Kelsey Martin, AG-ACNP-BC, AOCNP; Nerina T. McDonald, PA-C; Lauren Verity Moore, DNP, MSN, AGACNP-BC; Faith A. Mutale, DNP, CRNP; Tiffany Richards, PhD, ANP-BC, AOCNP; Emily Skotte, DNP, MSN, ACNP-BC; Leslie Smith, DNP, RN, APRN-CNS, AOCNS, BMTCN; Saneese Stephen, PA-C, MPAS; Sara M. Tinsley-Vance, PhD, APRN, AOCN

(Pharmacist Track) Antibody–Drug Conjugates in Oncology: The Essentials of AE Management for Better Patient Outcomes

(Pharmacist Track) Antibody–Drug Conjugates in Oncology: The Essentials of AE Management for Better Patient Outcomes

Michelle L. Taylor, ANP-BC; Emely Alfaro, DNP, RN, CNS, OCN; Paige Griffith, CRNP; Beth Sandy, MSN, CRNP, FAPO

School of Breast Oncology® (SOBO) Slide & Lecture Library

SOBO Slide Library

School of Breast Oncology® (SOBO) Slide & Lecture Library

Joyce O’Shaughnessy, MD

Trending on Targeted Oncology - Immunotherapy, Biomarkers, and Cancer Pathways

FDA Grants Traditional Approval to Pirtobrutinib in CLL/SLL

Safusidenib Shows Robust, Ongoing Responses in Grade 2 IDH1-Mutant Glioma

Sac-TMT Demonstrates Antitumor Activity, Safety in Urothelial Carcinoma

Durable Responses With Novel Cell Therapy TARA-002 in BCG-Naive NMIBC

JANX007 Shows Promising Efficacy, Safety in Phase 1 Trial Update

© 2025 MJH Life Sciences^®

All rights reserved.