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Molecular Profile EML4 - ALK ALK G1269A
Therapy Crizotinib
Indication/Tumor Type lung non-small cell carcinoma
Response Type resistant

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
EML4 - ALK ALK G1269A lung non-small cell carcinoma resistant Crizotinib Case Reports/Case Series Actionable In a clinical case study, ALK G1269A was identified in the post-progression biopsy of a patient with non-small cell lung cancer harboring EML4-ALK who was treated with Xalkori (crizotinib) (PMID: 33166721). 33166721
EML4 - ALK ALK G1269A lung non-small cell carcinoma resistant Crizotinib Case Reports/Case Series Actionable In a clinical case study, a non-small cell lung carcinoma patient harboring EML4-ALK demonstrated stable disease when treated with Xalkori (crizotinib), but then progressed, and was found to harbor a secondary resistance mutation, ALK G1269A (PMID: 22235099). 22235099
EML4 - ALK ALK G1269A lung non-small cell carcinoma resistant Crizotinib Preclinical - Cell culture Actionable In a preclinical study, human lung cancer cell lines expressing ALK G1269A in the context of EML4-ALK demonstrated resistance to Xalkori (crizotinib) in culture (PMID: 24675041). 24675041
PubMed Id Reference Title Details
(22235099) Mechanisms of resistance to crizotinib in patients with ALK gene rearranged non-small cell lung cancer. Full reference...
(24675041) The ALK inhibitor ceritinib overcomes crizotinib resistance in non-small cell lung cancer. Full reference...
(33166721) Novel Resistance Mechanisms Including L1196Q, P1094H, and R1248_D1249 Insertion in Three Patients With NSCLC After ALK Tyrosine Kinase Inhibitor Treatment. Full reference...