Patterns of central nervous system disease and molecular landscape in epidermal growth factor receptor exon 20 insertion mutated non-small cell carcinoma.

Median OS in patients who had received a TKI was 65.7 months [95% CI: 39.3–not estimated (NE)] months compared to 43.0 (95% CI: 35.1–70.8) months in patients who never received TKIs but the survival outcomes did not reach statistical significance (HR =0.72, 95% CI: 0.37–1.42, P=0.346) ( Figure 2 ).

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