[Radiation therapy for lung cancer].

Area of Science:

• Radiation oncology
• Medical physics
• Thoracic oncology

Context:

• Lung cancer treatment relies heavily on radiation therapy.
• Advancements in 3D treatment planning and 3D-CRT enable higher radiation doses.
• Increasing elderly population with lung cancer often presents contraindications for surgery.

Purpose:

• Evaluate stereotactic body radiotherapy (SBRT) for early-stage non-small cell lung cancer (NSCLC).
• Investigate radiation dose escalation strategies for locally advanced NSCLC.
• Explore novel combinations of radiation therapy with chemotherapy and molecular agents.

Summary:

• SBRT demonstrates over 90% local control and promising survival rates for stage I NSCLC, with ongoing trials to establish it as a standard or alternative treatment.
• For locally advanced NSCLC, dose escalation studies focus on delivering higher doses to the gross tumor volume while sparing normal tissues, aiming to overcome therapeutic plateaus.
• Future directions include integrating SBRT and dose-escalated radiotherapy with systemic therapies and utilizing molecular imaging for precise dose delivery.

Impact:

• SBRT offers a highly effective, non-invasive treatment option for early-stage lung cancer, particularly for patients unsuitable for surgery.
• Radiation dose escalation strategies hold potential to improve outcomes for locally advanced NSCLC.
• The integration of radiation therapy with novel systemic agents and advanced imaging promises more personalized and effective lung cancer management.