Predictive, Diagnostic, Prognostic, Oncogenic evidence:
Predictive: The study discusses the response rates to EGFR tyrosine kinase inhibitors (TKIs) among different mutation groups, indicating that the presence of the L858R mutation correlates with treatment response, as evidenced by the significantly different response rates between groups categorized by mutation type.
Diagnostic: The abstract mentions that the study investigates the clinical significance of various mutations, including L858R, in non-small cell lung cancer (NSCLC), suggesting that this variant is used to classify patients based on their mutation status.
Prognostic: The results indicate that patients with rare mutations, including those with L858R, had poorer progression-free survival compared to those with classical mutations, highlighting the variant's association with disease outcome independent of therapy.
Oncogenic: The L858R mutation is a well-known somatic mutation in the EGFR gene that contributes to tumor development in NSCLC, as implied by its classification as a classical mutation in the context of the study.