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| Gene | ALK |
| Variant | F1174X |
| Impact List | missense |
| Protein Effect | unknown |
| Gene Variant Descriptions | ALK F1174X indicates any Alk missense mutation that results in replacement of the phenylalanine (F) at amino acid 1174 by a different amino acid. |
| Associated Drug Resistance | |
| Category Variants Paths |
ALK mutant ALK F1174X |
| Transcript | NM_004304.5 |
| gDNA | chr2:g.29220829_29220831 |
| cDNA | c.3520_3522 |
| Protein | p.F1174 |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_004304.5 | chr2:g.29220829_29220831 | c.3520_3522 | p.F1174 | RefSeq | GRCh38/hg38 |
| NM_004304.4 | chr2:g.29220829_29220831 | c.3520_3522 | p.F1174 | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| ALK rearrange ALK F1174X | lung non-small cell carcinoma | predicted - sensitive | Lorlatinib | Clinical Study - Cohort | Actionable | In a Phase II trial, treatment with Lorbrena (lorlatinib) resulted in antitumor activity in ALK-rearranged non-small cell lung cancer patients harboring ALK F1174X (n=12), with an objective response rate of 42% (5/12; 95% CI 15.0-72.0), a median duration of response not reached (NR), and a median progression-free survival of 7.4 months (95% CI 2.8-NR) (PMID: 30892989; NCT01970865). | 30892989 |