A Real-World Study of Patients with Advanced Non-squamous Non-small Cell Lung Cancer with EGFR Exon 20 Insertion: Clinical Characteristics and Outcomes.

This large national study in nsqNSCLC patients confirms that EGFR exon 20ins is a rare condition (0.6%). The prognosis associated with exon 20ins appears to be in line with that of wild-type EGFR, but worse than common EGFR mutations, highlighting the need for advancements for this rare population.