Interventional Radiology for Local Immunotherapy in Oncology

Area of Science:

• Oncology
• Interventional Radiology
• Immunotherapy

Background:

• Human intratumoral immunotherapy (HIT-IT) is a rapidly advancing field with significant potential.
• Preliminary results from HIT-IT trials are promising, generating high expectations for ongoing phase III studies.

Purpose of the Study:

• To provide technical insights for interventional radiologists performing HIT-IT.
• To emphasize the importance of technical aspects in ensuring optimal and reproducible HIT-IT outcomes.
• To discuss patient selection, lesion assessment, image guidance, and injection techniques for HIT-IT.

Main Methods:

• Image-guided tumor access for precise immunotherapy delivery.
• Minimizing systemic drug exposure and off-tumor adverse events.
• Sequential tissue sampling for pharmacodynamic and efficacy analysis.

Main Results:

• Image guidance enhances the therapeutic index by increasing intratumoral drug concentration.
• Direct tumor access facilitates crucial correlative studies of immune, pathologic, and imaging responses.
• Standardized patient workflow optimizes HIT-IT outcomes and patient experience.

Conclusions:

• Technical considerations in HIT-IT directly impact safety, efficacy, and future development.
• Optimized image guidance and injection techniques are critical for successful HIT-IT.
• A structured patient workflow is essential for maximizing HIT-IT benefits and improving patient care.