Adjuvant epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) for the treatment of people with resected stage I to III non-small-cell lung cancer and EGFR mutation

Adjuvant EGFR TKIs may improve disease-free survival compared to both placebo/BSC and chemotherapy. There is moderate-certainty evidence that EGFR TKIs increase overall survival compared to placebo/BSC. However, they likely result in little to no difference in overall survival compared to chemotherapy. We could not rule out a potential survival benefit of adjuvant chemotherapy in people with EGFR-mutant NSCLC. Approximately 50% of participants experienced relapse or death within one year of stopping TKI therapy, indicating that the disease-free survival benefit may wane after withdrawal. This raises the possibility that prolonged adjuvant TKI therapy could be associated with improved long-term outcomes, although further research is needed to clarify this.