Are exon 19 deletions and L858R different in early stage lung adenocarcinoma?

ConclusionsPatients with the early stage lung adenocarcinoma harboring either 19del or L858R share similar RFS and OS. After recurrence, both could benefit from TKI therapy without the need for a second biopsy, but 19del seemed to be associated with better PRS.
Source: Journal of Cancer Research and Clinical Oncology - Category: Cancer & Oncology Source Type: research