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Association details:
Evidence:
Evidence Level:
Resistant: C3 – Early Trials
New
Title:

Pooled mutation analysis for the NP28673 and NP28761 studies of alectinib in ALK+ non-small-cell lung cancer (NSCLC).

Excerpt:
At baseline, 13 functional ALK mutations were identified (5 were previously unreported in the literature); at end of treatment, 3 new mutations (known resistance mutations) were seen (I1171N, I1171S, G1202R; n = 1 for each mutation). PFS > 3 months was seen in pts with baseline F1174V, L1196M, S1157F, R1231W, G1128A, G1269A or C1156F mutations, suggesting alectinib activity with these variants.
DOI:
10.1200/JCO.2016.34.15_suppl.9061
Evidence Level:
Resistant: C4 – Case Studies
New
Title:

Next-Generation Sequencing Reveals a Novel NSCLC ALK F1174V Mutation and Confirms ALK G1202R Mutation Confers High-Level Resistance to Alectinib (CH5424802/RO5424802) in ALK-Rearranged NSCLC Patients Who Progressed on Crizotinib

Excerpt:
In a second case, we identified a secondary acquired ALK G1202R, which also confers resistance to alectinib (CH5424802/RO5424802), a second-generation ALK inhibitor that can inhibit ALK gatekeeper L1196M mutation in vitro…. In this brief report, we identified a novel acquired secondary ALK mutation (ALK F1174V) in an ALK+ NSCLC patient who progressed on crizotinib and demonstrated that a previously described secondary mutation, ALK G1202R, confers high level of intrinsic resistance to alectinib...
DOI:
10.1097/JTO.0000000000000094