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Published on: May 2, 2025
Neoadjuvant anti-PD-1-based immunotherapy: evolving a new standard of care
Suzanne L Topalian1,2,3, Drew M Pardoll2,3,4
1Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA stopali1@jhmi.edu.
Abstract:
Neoadjuvant (presurgical) anti-programmed cell death protein-1 (PD-1)-based immunotherapy as a new approach to cancer treatment has been developing on an accelerated trajectory since the seminal clinical trial results from studies in lung cancer and melanoma were published in 2018. Groundbreaking regulatory approvals in triple-negative breast cancer, non-small cell lung cancer and melanoma will certainly be followed by additional approvals in other disease indications, as clinical and basic research are burgeoning globally in hundreds of clinical trials across dozens of cancer types. As this field is evolving, it is addressing gaps in our understanding of biological mechanisms underlying PD-1 pathway blockade and their synergy with other antineoplastic drugs, probing mechanisms of response and resistance to neoadjuvant immunotherapy, optimizing efficacious clinical strategies, and analyzing commonalities and differences across cancer types. Knowledge gained thus far provides a firm foundation from which to launch the next phase of translational research in this expanding arena of biomedical investigation.
Insights
Neoadjuvant (presurgical) anti-programmed cell death protein-1 (PD-1) immunotherapy is a rapidly advancing cancer treatment. Ongoing research explores its mechanisms, effectiveness, and applications across various cancer types.
Area of Science:
- Oncology
- Immunotherapy
- Translational Research
Background:
- Neoadjuvant (presurgical) anti-programmed cell death protein-1 (PD-1)-based immunotherapy represents a significant advancement in cancer treatment.
- Seminal clinical trial results in lung cancer and melanoma since 2018 have accelerated its development and led to regulatory approvals.
Purpose of the Study:
- To summarize the current state and future directions of neoadjuvant PD-1-based immunotherapy.
- To highlight the expanding research landscape across numerous cancer types and clinical trials.
- To identify key areas of investigation including biological mechanisms, response/resistance, and clinical strategy optimization.
Main Methods:
- Review of recent clinical trial outcomes and regulatory approvals.
- Analysis of ongoing basic and clinical research in PD-1 pathway blockade.
- Exploration of synergistic effects with other antineoplastic drugs.
Main Results:
- Accelerated development and regulatory approvals in indications like triple-negative breast cancer, non-small cell lung cancer, and melanoma.
- Burgeoning global research in hundreds of clinical trials across diverse cancer types.
- Identification of critical research gaps in understanding PD-1 blockade mechanisms and clinical applications.
Conclusions:
- Neoadjuvant PD-1 immunotherapy is a rapidly evolving field with broad potential.
- Further research is crucial to elucidate mechanisms, optimize strategies, and expand its use across more cancer types.
- Current knowledge provides a strong foundation for future translational research in this area.
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