Aumseqa as monotherapy is indicated for:- the first-line treatment of adult patients with advanced non-small cell lung cancer (NSCLC)whose tumours have EGFR exon 19 deletions or exon 21 (L858R) substitution mutations (forbiomarker-based patient selection, see section 4.2).- the treatment of adult patients with advanced EGFR T790M mutation-positive NSCLC (forbiomarker-based patient selection, see section 4.2)