Non-small cell lung cancer (NSCLC) remains the leading cause of cancer-related deaths worldwide. Among recent advancements, tyrosine kinase inhibitors (TKIs) have revolutionized the treatment of this disease in patients with oncogenic mutations. However, the emergence of resistance to TKIs limits their long-term effectiveness. Consequently, identifying new therapies is crucial, and one potential s
Non-small cell lung cancer (NSCLC) remains the leading cause of
cancer-related deaths worldwide. Among recent advancements, tyrosine kinase
inhibitors (TKIs) have revolutionized the treatment of this disease in patients
with oncogenic mutations. However, the emergence of resistance to TKIs limits
their long-term effectiveness. Consequently, identifying new therapies is
crucial, and one potential solution lies in combining TKIs with thoracic
radiotherapy (RT). This approach aims to prolong survival while maintaining a
favorable safety profile. This study examines the benefits of this combined
strategy.
Combining TKIs and radiotherapy: efficacy and side effects
Twelve studies, including 2,936 patients with NSCLC harboring oncogenic
mutations, were selected. The effects of TKIs alone were compared to their
combination with thoracic RT. Progression-free survival (mPFS), overall
survival (mOS), and adverse effects (AEs) were evaluated to assess treatment
efficacy.
This study demonstrates that combining TKIs with RT provides notable
clinical advantages. The data show a significant increase in mPFS,
particularly when this combination is used as a first-line treatment.
Similarly, mOS is significantly improved, confirming the potential of
this strategy to extend patients' lifespans. However, the study also highlights that the TKI-RT combination
carries an increased risk of AEs, although the severity of these side
effects is comparable to those observed with TKIs alone. Adverse effects
related to RT mainly include pneumonitis (41.3%, with a severity rate of 4.5%),
esophagitis (15.4%, severe in 6.2% of cases), and radiodermatitis (11.1%).
TKIs and radiotherapy: promising perspectives despite challenges
This study underscores the promising potential of the TKI-RT combination
for NSCLC treatment. By extending both progression-free and overall survival,
this approach redefines the standards of care. However, it also highlights the
importance of close monitoring to mitigate adverse effects while maximizing
clinical benefits. Further research is required to refine and optimize
treatment protocols and better understand the mechanisms underlying this
therapeutic synergy, paving the way for even more personalized medicine.
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Scientific reference
Li, W., et al. (2024). Efficacy and safety of tyrosine kinase inhibitors with thoracic radiotherapy for patients with oncogene-mutated non-small cell lung cancer: a meta-analysis. Radiation Oncology (London, England), 19, 154
