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 |
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Pages (from-to) | 561-572 |
Number of pages | 12 |
Journal | Clinical Cancer Research |
Volume | 31 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Feb 2025 |