Table 2.
Concomitant Genetic Alterations in ROS1-Rearranged NSCLC.
Patient | Genes with Alterations | Prior Systemic Therapya |
---|---|---|
1 | ATM, CTNNB1, TP53, DNMT3A | Yes |
2 | TP53 | No |
6 | TP53 | No |
10 | TP53 | No |
14 | TP53, SMAD4, APC | No |
24 | TP53, ROS1 (p.G2032R) | Yesb |
42 | MAP2K4, SF3B1 | No |
43 | TP53 | Yes |
45 | TSC2 | No |
46 | TP53 | No |
48 | KRAS (p.I24N), CTNNB1, TP53 | No |
49 | BAP1, CHEK2 | No |
50 | CTNNB1 | Yes |
53c | KRAS (p.G13D), EGFR (p.C781F), KIT, IDH1 | No |
54 | CDKN2A, TP53 | No |
55 | FLT1, PRKDC, RUNX1 | No |
57 | TP53 | No |
59 | CCND1, ARID1A, CDKN2A/B, FGF19, FGF4, FGF3 | No |
60 | MSH6, CDKN2A | No |
61 | CDKN2A/B | No |
Prior systemic therapy includes chemotherapy and/or crizotinib.
This tumor sample was derived post-crizotinib. The pre-crizotinib tumor sample did not harbor the ROS1 G2032R mutation, which is a known crizotinib-resistant mutation.23
This tumor sample tested positive for ROS1 rearrangement by FISH, but targeted RNA sequencing did not detect a ROS1 fusion transcript.