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NTRKFusionDraft, not yet medically reviewed

NTRK fusion

A rare tumour-agnostic fusion that opens the TRK inhibitor category.

Parent marker: NTRK

Not a diagnosis and not final medical advice. Must be reviewed by a doctor.

Clinical meaning

NTRK fusion allows targeted therapy without depending on the organ of origin of the tumor. Because they are rare, discoveries usually come from a wider panel.

How this finding appears in a report

Discovered through a sequencing panel that includes NTRK1, NTRK2, and NTRK3.

When therapy stops working

Changes in the TRK kinase domain may occur following therapy.

What needs verification

  • Complete variant name as written in the laboratory report.
  • Examination methods and types of samples used.
  • Examination dates were compared with ongoing therapy.

Marker context: NTRK

NTRK fusions are tumor-agnostic: if discovered, this marker can form the basis of discussion of targeted therapy without depending on the organ of origin of the tumor.

A negative result does not always mean absent

Test sensitivity differs by sample type and method. Results need to be read together with the pathology report and clinical condition.

Summary

Gen
NTRK
Variant
NTRK1/2/3 fusion
Alteration type
Fusion
Discussed in
Lung Cancer, Stomach Cancer, Lymphoma
Updated
2026-09-10

Other names in reports

TRK fusion

Treatment categories

Clinical trials

Studies mentioning marker NTRK

Filtered from public study descriptions. Access status and site readiness remain unverified.

Next steps

These suggestions come from links between entries in TanyaKanker's database, not from a medical judgement. Each suggestion includes why it appears.

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