Drawing lessons from T-DXD, experts treat newer exatecan-payload ADCs like RDXD as highly emetogenic from the first dose. Instead of a 'wait and see' approach, they recommend aggressive premedication with a triple-drug antiemetic regimen to prevent nausea and maintain quality of life.

Advanced SCLC therapies like the bispecific antibody tarlatumab require inpatient administration for the first two doses to manage severe side effects like Cytokine Release Syndrome (CRS). Many community centers lack the specialized cellular therapeutics or transplant teams necessary for this complex monitoring, creating an implementation gap.

A critical reason patients stop ADC treatments is the burden of side effects like skin toxicity or GI issues, not just disease progression. This underscores the urgent need to develop ADCs with better safety profiles, enabling patients to stay on effective therapy longer.

Unlike novel challenges from bispecifics, upcoming SCLC therapies like antibody-drug conjugates (ADCs) and radiopharmaceuticals will benefit from existing familiarity. Community practices are already comfortable with these drug classes from their use in breast cancer (ADCs) and prostate cancer (radioligands), which should streamline their integration.

For novel drugs like tarlatumab, the role of oncology pharmacists extends far beyond dispensing. They are systems architects who design crucial toxicity management protocols (for CRS/ICANS), create standardized order sets, and lead the essential in-service training for inpatient hospital teams to ensure safe and consistent administration.

Integrating next-gen SCLC treatments like T-cell engagers requires more than education; it demands a physical and operational overhaul. Community practices must build infrastructure for 24-hour observation and establish proactive partnerships with specialists like ophthalmologists to manage novel toxicities.

Despite its approval, the bispecific T-cell engager tarlatamab sees slower community adoption than prior SCLC drugs. The barrier is the logistical need for inpatient monitoring and specialized supportive care for potential cytokine release syndrome during the first two doses, a new challenge for community practices that suggests a university collaboration model.

A key principle for clinicians is that an antibody-drug conjugate's adverse events are primarily dictated by its linker-payload (e.g., deruxtecan, vedotin), not its specific antibody target. This allows for anticipating toxicities like neuropathy or GI issues based on the payload class, creating a predictable framework for management across different ADCs.

A high-level discussion among experts reveals a growing debate about the long-term use of antibody-drug conjugates (ADCs). They question whether the benefits of continuous chemotherapy delivery outweigh the cumulative and novel toxicities, suggesting a need for a more balanced approach to treatment duration.