Annotation Detail

Information
Associated Genes
NTRK3
Associated Variants
NTRK3 ETV6-NTRK3 FUSION
Associated Disease
congenital fibrosarcoma
Source Database
CIViC Evidence
Description
Nagasubramanian et al reports on a case of refractory infantile fibrosarcoma (IFS) with constitutive activation of the tropomyosin‐related kinase (TRK) signaling pathway from an ETS variant gene 6–neurotrophin 3 receptor gene (ETV6–NTRK3) gene fusion. The patient was diagnosed with IFS at 6 months of age. At 16 months the patient enrolled in a pediatric Phase 1 trial of LOXO‐101 (Larotrectinib, ARRY-470), an experimental, highly selective inhibitor of TRK. The patient experienced a rapid, radiographic response, demonstrating the potential for LOXO‐101 to provide benefit for IFS harboring NTRK gene fusions.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/6473
Gene URL
https://civic.genome.wustl.edu/links/genes/3985
Variant URL
https://civic.genome.wustl.edu/links/variants/2422
Rating
2
Evidence Type
Predictive
Disease
Congenital Fibrosarcoma
Evidence Direction
Supports
Drug
Larotrectinib
Evidence Level
C
Clinical Significance
Sensitivity/Response
Pubmed
27093299
Drugs
Drug NameSensitivitySupported
LarotrectinibSensitivitytrue