The overall response rate (ORR) by investigator is 1 (4.5%) partial response (PR) and 13 (59%) stable disease (SDs), with 6 SDs for >6 months. Disease control rate (DCR) is 64%. One pt with EGFR exon 19 deletion who progressed on osimertinib has an ongoing PR for 3+ years....TP-0903 added to osimertinib in unselected resistant EGFR+ NSCLC patients showed intriguing signals of activity that deserves further investigation, the safety profile was manageable.