Mechanism of Action of BiTE Immunotherapy

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.

EP: 1.Clinical Impressions and Therapy Goals

EP: 2.Considerations for Extended Chemoimmunotherapy

EP: 3.Prophylactic Cranial Irradiation Considerations

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EP: 4.Mechanism of Action of BiTE Immunotherapy

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

EP: 8.Future Potential in Combination Therapies

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

EP: 10.B7-H3 Mechanism and Therapeutic Potential

EP: 11.Current Practices in B7-H3 Testing

EP: 12.Interpreting IDeate-Lung02 Trial Outcomes

EP: 13.Comparing Dosing Schedules With Standard Therapies

EP: 14.Potential Synergies With T-Cell Engagers

EP: 15.Prospects in First-Line and Maintenance Settings

EP: 16.Mechanism of Action Compared With Other Alkylating Agents

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

EP: 18.Comparative Efficacy and Future Directions in SCLC Treatment

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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.

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