Abstract
PURPOSE: Tropomyosin receptor kinase (TRK) fusions are detected in less than 2% of central nervous system tumors. There are limited data on the clinical course of affected patients.
EXPERIMENTAL DESIGN: We conducted an international retrospective cohort study of patients with TRK fusion-driven central nervous system tumors.
RESULTS: A total of 119 patients were identified. The median age at the time of diagnosis was 4.5 years. The majority were reported to have a histology consistent with a diagnosis of high-grade glioma (HGG; 57.1%) followed by low-grade glioma (LGG; 27.7%). Pediatric patients had a better prognosis, with a median overall survival of 185.5 months compared with 24.8 months in adults (P < 0.0001). Patients with LGG also had a better outcome when compared with HGG (P = 0.0012). The objective response was 68.8% with larotrectinib compared with 38.1% for nontargeted treatment.
CONCLUSIONS: Children with LGG had a favorable outcome compared with adult glioma and HGG. TRK inhibitors seem to improve tumor control.
| Original language | English |
|---|---|
| Pages (from-to) | 561-572 |
| Number of pages | 12 |
| Journal | Clinical Cancer Research |
| Volume | 31 |
| Issue number | 3 |
| DOIs | |
| State | Published - 3 Feb 2025 |
Keywords
- Adolescent
- Adult
- Aged
- Central Nervous System Neoplasms/genetics
- Child
- Child, Preschool
- Female
- Gene Fusion
- Glioma/genetics
- Humans
- Infant
- Male
- Membrane Glycoproteins
- Middle Aged
- Neoplasm Grading
- Oncogene Proteins, Fusion/genetics
- Prognosis
- Protein Kinase Inhibitors/therapeutic use
- Pyrazoles/therapeutic use
- Pyrimidines/therapeutic use
- Receptor, trkA/genetics
- Receptor, trkB/genetics
- Receptor, trkC/genetics
- Retrospective Studies
- Treatment Outcome
- Young Adult
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