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Episode Overview

What if you could inject a tumor and ignite the immune system—not just locally, but systemically? In this episode of the Prescribed Podcast, Dr. Nathan Goodyear sits down with Dr. Jason Williams, founder of the Williams Cancer Institute and pioneer of intratumoral immunotherapy. Together, they unpack a landmark 2025 study on Fc-optimized CD40 agonists and explore how direct injection into tumors is transforming cancer treatment. From tertiary lymphoid structures to pulsed electric fields (PEFs), this isn’t just a conversation—it’s a call to action for patients, clinicians, and researchers ready to revolutionize cancer care.

📌 Key Takeaways

CD40 is the Swiss Army knife of immunotherapy. It primes T cells, activates dendritic cells, reprograms macrophages, and supports B-cell immunity.

Systemic CD40 delivery is toxic. Intravenous administration causes cytokine storms, liver injury, and platelet loss.

Intratumoral injection avoids toxicity. Local delivery reprograms the tumor microenvironment while still driving systemic immune responses.

Phase I trial showed promise. Among 12 patients, 20% had complete responses and 60% achieved stable disease—without dose-limiting toxicities.

Abscopal effect observed. Injected tumors triggered regression in non-injected lesions.

TLS are immune training camps. These tertiary lymphoid structures enable long-term immune memory and stronger systemic antitumor activity.

PEF boosts immunity. Pulsed electric fields induce tumor death, enhance antigen release, and synergize with CD40.

Combination is key. Checkpoint inhibitors, chemo-radiation, and ablation therapies amplify intratumoral CD40’s effects.

Adaptive precision matters. Not all patients respond the same; tailored multi-agent regimens outperform single drugs.

Williams Cancer Institute leads innovation. Dr. Williams is already applying these strategies in clinical practice today.

🧬 Dr. Jason Williams – Williams Cancer Institute: https://williamscancerinstitute.com

📞 Schedule a consultation: https://williamscancerinstitute.com
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