Who Will Benefit from Charged-Particle Therapy?

Area of Science:

• Medical physics
• Radiation oncology
• Particle therapy

Background:

• Charged-particle therapy (CPT), encompassing proton beam therapy (PBT) and carbon-ion radiotherapy (CIRT), presents significant physical and biological advantages over conventional photon radiotherapy.
• CPT's ability to minimize radiation dose to surrounding normal tissues has led to its primary application in pediatric cancers and radioresistant tumors within critical areas.
• Wider adoption of CPT is constrained by high initial costs and a need for more robust clinical evidence.

Purpose of the Study:

• To review recent clinical outcomes of PBT and CIRT for specific diseases.
• To identify potential indications for CPT based on current clinical evidence.
• To discuss strategies for conducting clinical studies to expand CPT accessibility.

Main Methods:

• Literature review of recent clinical results for PBT and CIRT.
• Analysis of clinical data focusing on specific disease sites and tumor types.
• Discussion of methodologies for advancing clinical research in CPT.

Main Results:

• Recent clinical studies demonstrate the efficacy of PBT and CIRT in selected patient populations.
• Evidence suggests potential benefits in specific cancers, particularly where dose escalation or normal tissue sparing is critical.
• Ongoing research aims to build a stronger evidence base for broader CPT application.

Conclusions:

• CPT, including PBT and CIRT, shows promise for improved cancer treatment outcomes.
• Further clinical research and cost-effectiveness analyses are essential to broaden CPT's accessibility.
• Expanding the evidence base will help more patients benefit from advanced radiotherapy techniques.