Opinion|Videos|October 7, 2024

Mechanism of Action of BiTE Immunotherapy

Author(s)Joshua K. Sabari, MD

Joshua K. Sabari, MD, discusses how tarlatamab, a BiTE, demonstrates a unique mechanism of action by targeting DLL3, which is aberrantly expressed in 85% to 94% of SCLC cells, thereby directing T cells to these cancer cells independently of MHC class I and promoting T-cell–mediated tumor lysis and regression.

Episodes in this series

EP. 1 Clinical Impressions and Therapy Goals

EP. 1 Clinical Impressions and Therapy Goals

EP. 2 Considerations for Extended Chemoimmunotherapy

EP. 2 Considerations for Extended Chemoimmunotherapy

EP. 3 Prophylactic Cranial Irradiation Considerations

EP. 3 Prophylactic Cranial Irradiation Considerations

EP. 4 Mechanism of Action of BiTE Immunotherapy

EP. 4 Mechanism of Action of BiTE Immunotherapy

EP. 5 Interpreting DeLLphi-301 Trial Results: ORR, Duration of Response, and Long-Term Outcomes

EP. 5 Interpreting DeLLphi-301 Trial Results: ORR, Duration of Response, and Long-Term Outcomes

EP. 6 Significance of Durable Responses in DeLLphi-301 Trial

EP. 6 Significance of Durable Responses in DeLLphi-301 Trial

$EP. 7 Expectations for PFS and OS in Relapsed/Refractory SCLC$

EP. 7 Expectations for PFS and OS in Relapsed/Refractory SCLC

EP. 8 Future Potential in Combination Therapies

EP. 8 Future Potential in Combination Therapies

EP. 9 Dual Maintenance With BiTE and PD-L1 Inhibitors

EP. 9 Dual Maintenance With BiTE and PD-L1 Inhibitors

EP. 10 B7-H3 Mechanism and Therapeutic Potential

EP. 10 B7-H3 Mechanism and Therapeutic Potential

EP. 11 Current Practices in B7-H3 Testing

EP. 11 Current Practices in B7-H3 Testing

EP. 12 Interpreting IDeate-Lung02 Trial Outcomes

EP. 12 Interpreting IDeate-Lung02 Trial Outcomes

EP. 13 Comparing Dosing Schedules With Standard Therapies

EP. 13 Comparing Dosing Schedules With Standard Therapies

EP. 14 Potential Synergies With T-Cell Engagers

EP. 14 Potential Synergies With T-Cell Engagers

EP. 15 Prospects in First-Line and Maintenance Settings

EP. 15 Prospects in First-Line and Maintenance Settings

EP. 16 Mechanism of Action Compared With Other Alkylating Agents

EP. 16 Mechanism of Action Compared With Other Alkylating Agents

EP. 17 Efficacy in Platinum-Sensitive vs Platinum-Resistant SCLC

EP. 17 Efficacy in Platinum-Sensitive vs Platinum-Resistant SCLC

EP. 18 Comparative Efficacy and Future Directions in SCLC Treatment

EP. 18 Comparative Efficacy and Future Directions in SCLC Treatment

Video content above is prompted by the following:

Please discuss the unique mechanism of action of tarlatamab, a BiTE, and its treatment potential as subsequent therapy for SCLC that has progressed after platinum-based chemotherapy.

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™: 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

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

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

Breaking Down the Rationale for Targeting TROP2 in TNBC

Breaking Down the Rationale for Targeting TROP2 in TNBC

Filipa Lynce, MD; Rita Nanda, MD

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

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

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

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