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RESEARCH PAPER ANALYSIS

Clinical Characteristics and Outcomes of Central Nervous System Tumors Harboring NTRK Gene Fusions.

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PMID39625867
JournalClinical cancer research : an official journal of the American Association for Cancer Research
Publication Date2025-02-03
Ingested2026-08-02 12:03 AM
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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.

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Clinical Characteristics and Outcomes of Central Nervous System Tumors Harboring NTRK Gene Fusions.

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