Eligible patients had EGFR exon 18-mutant NSCLC and ECOG performance status 0–2....Patients received neratinib (240 mg po daily)....ORR was 31% overall and 26% in patients pretreated with TKIs (Table 1). Two of 7 patients with baseline CNS metastasis had a partial response (PR; median PFS 3.6 months; 95% CI 1.9–9.1 months). Long-lived responses were observed in 3 patients with G719A/X/C mutations (2 PR, 1 SD)....Neratinib monotherapy had meaningful activity in patients with EGFR exon 18-mutant NSCLC in SUMMIT; 31% of patients had a PR and most patients had prior TKIs.