Logo Image
|Articles|June 28, 2013

Mechanism of Action: Herceptin (Trastuzumab)

The mechanism of action of trastuzumab (Herceptin), a monoclonal antibody that is approved for the treatment of early-stage breast cancer that is HER2-positive.

Tweet

Trastuzumab (Herceptin) is a monoclonal antibody that interferes with the HER2/neu receptor. Herceptin is approved for the treatment of early-stage breast cancer that isHumanEpidermal growth factorReceptor2

Related Content

Latest CME

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

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

Filipa Lynce, MD; Rita Nanda, MD

View more
Establishing the Rationale for ADC and ICI Combinations in TNBC
Multimedia

Establishing the Rationale for ADC and ICI Combinations in TNBC

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

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

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

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

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

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

View more
Breaking Down the Rationale for Targeting TROP2 in TNBC
Multimedia

Breaking Down the Rationale for Targeting TROP2 in TNBC

Filipa Lynce, MD; Rita Nanda, MD

View more
Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2– Metastatic Breast Cancer | Louisiana Oncology Society
Video

Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2– Metastatic Breast Cancer | Louisiana Oncology Society

Kamel Abou Hussein, MD

View more
Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2– Metastatic Breast Cancer | Missouri Oncology Society
Video

Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2– Metastatic Breast Cancer | Missouri Oncology Society

Sara A. Hurvitz, MD, FACP; Shaina Rozell, MD, MPH

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

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

Joyce O’Shaughnessy, MD

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

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

View more
Expert Roundtable and Panel Discussions: Current and Future Landscape of TNBC
Multimedia

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

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

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

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

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

Joyce O’Shaughnessy, MD

View more
Project ECHO®: Advancing Care in Metastatic TNBC Through PD-L1–Informed Novel Frontline ADC Strategies
Virtual Event

Project ECHO®: Advancing Care in Metastatic TNBC Through PD-L1–Informed Novel Frontline ADC Strategies

Webinar Series

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

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

Sara A. Hurvitz, MD, FACP; Joyce O’Shaughnessy, MD

View more
Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2- Metastatic Breast Cancer | Wisconsin Association of Hematology and Oncology
Video

Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2- Metastatic Breast Cancer | Wisconsin Association of Hematology and Oncology

Kurt C. Demel, MD, MBA; Sara A. Hurvitz, MD, FACP

View more
Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2- Metastatic Breast Cancer | Arkansas Association of Cancer Professionals
Video

Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2- Metastatic Breast Cancer | Arkansas Association of Cancer Professionals

Kamel Abou Hussein, MD; Yelda Nouri, MD

View more
Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2- Metastatic Breast Cancer | Rhode Island Oncology Society
Video

Community Oncology Connections™: Monotherapies vs Combinations – Navigating Oral SERDs and Targeted Combination Strategies in HR+/HER2- Metastatic Breast Cancer | Rhode Island Oncology Society

Aditya Bardia, MD, MPH, FASCO; Benjamin Scheier, MD

View more
Satellite Symposia at the Annual Radiation Oncology Meeting
In-Person + Virtual Event

Satellite Symposia at the Annual Radiation Oncology Meeting

September 27-28, 2026

View more
North Carolina Oncology Association
Virtual Event

North Carolina Oncology Association

2 Sessions are Available!

View more
Hot Seat: How Experts Are Integrating the Latest Practice-Changing Data Into Their Breast Cancer Clinics
Video

Hot Seat: How Experts Are Integrating the Latest Practice-Changing Data Into Their Breast Cancer Clinics

Tiffany A. Traina, MD, FASCO; Nour Abuhadra, MD; Joshua Z. Drago, MD, MS; Ruth O’Regan, MD; Vered Stearns, MD, FASCO; Neil Vasan, MD, PhD; Anna Weiss, MD

View more
Medical Crossfire®: The Who, When, and How of TROP2-Targeting ADCs, ICIs, and PARP inhibition in Triple-Negative Breast Cancer
Video

Medical Crossfire®: The Who, When, and How of TROP2-Targeting ADCs, ICIs, and PARP inhibition in Triple-Negative Breast Cancer

Hope S. Rugo, MD; Alison K. Conlin, MD; Marleen Kok, MD, PhD; Heather McArthur, MD, MPH

View more
Medical Crossfire®: Mastering the Nuances of Early-Stage HR+/HER2- Breast Cancer—Expert Perspectives on Applying Modern Treatment Paradigms
Video

Medical Crossfire®: Mastering the Nuances of Early-Stage HR+/HER2- Breast Cancer—Expert Perspectives on Applying Modern Treatment Paradigms

Tiffany A. Traina, MD, FASCO; Kevin Kalinsky, MD MS, FASCO; Mark E. Robson, MD, FASCO; Rebecca Shatsky, MD

View more
From Frontline to Heavily Pretreated HR+/HER2- Metastatic Breast Cancer: Expert Perspectives on Optimizing the Expanding Treatment Armamentarium
Video

From Frontline to Heavily Pretreated HR+/HER2- Metastatic Breast Cancer: Expert Perspectives on Optimizing the Expanding Treatment Armamentarium

Erika P. Hamilton, MD; Giuseppe Curigliano, MD, PhD; VK Gadi, MD, PhD; Jason Aboudi Mouabbi, MD

View more
Show Me the Data™: Personalizing First-Line and Maintenance Therapy in HER2+ Metastatic Breast Cancer to Extend Survival and Elevate Quality of Life
Video

Show Me the Data™: Personalizing First-Line and Maintenance Therapy in HER2+ Metastatic Breast Cancer to Extend Survival and Elevate Quality of Life

Sara A. Hurvitz, MD, FACP; Rena Callahan, MD; Michelle Melisko, MD; Paolo Tarantino, MD, PhD

View more
Module 4: Breast Surgery (2025)
Video

Module 4: Breast Surgery (2025)

Eleftherios (Terry) Mamounas, MD, MPH, FACS; Michael Alvarado, MD, MS; Puneet Singh, MD, MS, FACS, FSSO, CMQ

View more
Module 5: Breast Radiation Therapy (2025)
Video

Module 5: Breast Radiation Therapy (2025)

Douglas W. Arthur, MD, FABS, FASTRO; Eleanor E. Harris, MD, FASTRO; Kathleen Horst, MD

View more
Module 3: Pathology And Biomarkers (2025)
Video

Module 3: Pathology And Biomarkers (2025)

Joyce O’Shaughnessy, MD; Sunil S. Badve, MD, FRCPath; Claudine Isaacs, MD; Michael F. Press, MD, PhD

View more
Module 6: Adjuvant/Neoadjuvant Chemotherapy and Endocrine Therapy (2025)
Video

Module 6: Adjuvant/Neoadjuvant Chemotherapy and Endocrine Therapy (2025)

Joyce O’Shaughnessy, MD; William J. Gradishar, MD, FASCO, FACP; N. Lynn Henry, MD, PhD, FASCO; Kevin Kalinsky, MD, MS; Joseph A. Sparano, MD; Sara Tolaney, MD, MPH

View more
Module 1: Breast Carcinogenesis & Management of High-Risk Disease (2025)
Video

Module 1: Breast Carcinogenesis & Management of High-Risk Disease (2025)

Joyce O’Shaughnessy, MD; Carol Fabian, MD; Rachel Freedman, MD, MPH; Anne Grabenstetter, MD; Claudine Isaacs, MD; Pedram Razavi, MD, PhD

View more
Module 7: Systemic Treatment Of Advanced/Metastatic Disease (2025)
Video

Module 7: Systemic Treatment Of Advanced/Metastatic Disease (2025)

William J. Gradishar, MD, FASCO, FACP; Ting Bao, MD, MS; Jennifer A. Ligibel, MD; Filipa Lynce, MD; Ruth O’Regan, MD, MSc

View more
Module 2: Breast Imaging (2025)
Video

Module 2: Breast Imaging (2025)

Joyce O’Shaughnessy, MD; Connie Lehman, MD, PhD, FACR; David M. Schuster, MD, FACR

View more
Module 8: Organ-Targeted Treatment of Metastatic Disease (2025)
Video

Module 8: Organ-Targeted Treatment of Metastatic Disease (2025)

Joyce O’Shaughnessy, MD; Michelle Melisko, MD; Beverly Moy, MD, MPH

View more
Module 9: Toxicity Management And Survivorship Considerations (2025)
Video

Module 9: Toxicity Management And Survivorship Considerations (2025)

Joyce O’Shaughnessy, MD; Laura Huppert, MD; Michelle Melisko, MD; Michelle Mollica, PhD, MPH, RN, OCN; Ann H. Partridge, MD, MPH

View more