[Emerging Targeted Therapies and Ongoing Clinical Trials in Pediatric Brain Tumors].
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Recent advances in molecular profiling have transformed pediatric brain tumors management. The use of targeted agents is guided by actionable alterations including the BRAF V600E mutation, NTRK fusions, NF1 pathway activation, and H3 K27M mutation. Dabrafenib plus trametinib has shown superiority over chemotherapy in pediatric low-grade gliomas and activity against high-grade diseases. Larotrectinib and entrectinib provide tumor-agnostic options for NTRK-fusion-positive tumors with central nervous system penetration. Selumetinib offers clinical benefits in NF1-associated plexiform neurofibromas and shows promise for treating NF1-related low-grade gliomas. Tovorafenib, a type II RAF inhibitor active in BRAF-altered tumors (including BRAFKIAA1549 fusion), achieved robust responses, thereby leading to FDA approval. ONC201 (dordaviprone) has received accelerated approval for the treatment of H3 K27M-mutant diffuse midline gliomas, with Japanese trials and patient-initiated programs expanding access. Abemaciclib, a CDK4/6 inhibitor, is under phase II evaluation for pediatric high-grade glioma and diffuse midline glioma, including sites in Japan. Neurosurgeons play a pivotal role in securing high-quality biopsies, thus enabling comprehensive molecular diagnostics and facilitating enrollment in international trials. This review summarizes current targeted therapies and ongoing studies and outlines practical considerations for integrating precision oncology into pediatric neuro-oncology in Japan.