Asciminib With or Without Sildenafil for Brain Tumors

Dissemination of medulloblastoma is an independent risk factor of poor prognosis. Dissemination of medulloblastoma at recurrence is nearly universally fatal. ABL1 and 2 have been recently found to mediate the dissemination of medulloblastoma. Genetically inactivating ABL1 and 2 resulted in decreased leptomeningeal medulloblastoma and improved overall survival (OS) in rodent models. ABL kinases have also been shown to play a role in the malignant properties of glioblastoma. Asciminib is an FDA approved for the treatment of chronic myeloid leukemia and is well tolerated, likely due to its specificity for ABL1 and ABL2. Asciminib is a P-glycoprotein (P-gp) substrate and thus may be susceptible to being pumped out of tumor cells and brain endothelial cells. It is unclear if asciminib can enter the central nervous system (CNS) and brain tumors in adequate concentration to have anti-tumor effects.

NCT Number	NCT07039760
Lead Sponsor	Washington University School of Medicine
Conditions	Brain Tumor
Enrollment	12 participants
Start Date	2026-08-31
Primary Completion	2028-02-28 (estimated)
Study Completion	2028-03-31 (estimated)
Updated on ClinicalTrials.gov	2026-07-01