Phase I Study of Oral ONC206 in Recurrent and Rare Primary Central Nervous System Neoplasms

Inclusion criteria

• ✓. Patients aged ≥18 years with a recurrent, primary CNS neoplasm. For all cohorts, patients must have a histologically confirmed primary CNS neoplasm. Primary CNS neoplasms in this study include, but are not limited to, the following: glioblastoma and glioblastoma histologic subtypes, gliosarcoma, primary CNS sarcomas, anaplastic glial neoplasms including anaplastic astrocytoma, anaplastic oligodendroglioma, anaplastic mixed neuronal-glial tumors, and pilocytic astrocytoma with anaplastic features, diffuse astrocytoma, oligodendroglioma, gliomatosis cerebri, pleomorphic xanthoastrocytoma, anaplastic pleomorphic xanthoastrocytoma, diffuse midline gliomas and histone mutated gliomas (NOTE: Patients with H3 K27M-mutant diffuse gliomas are excluded unless the primary tumor is located in the pons or spinal cord, or the patient has completed front line radiation or received ONC201 therapy prior to 01 January 2023), ependymoma, anaplastic ependymoma, and all ependymoma subtypes, medulloblastoma and all medulloblastoma subtypes, atypical teratoid/rhabdoid tumor, primary CNS embryonal/primitive neuroectodermal tumors, atypical and anaplastic meningiomas, choroid plexus tumors, and pineal region tumors.
• ✓. Patients must have recurrent and measurable disease as defined by RANO criteria, using either the HGG and/or LGG RANO criteria based on tumor type, after having received established standard of care treatment for their disease and have no standard treatment options available as determined by the investigators. There is no limit on the number of total recurrences or prior therapies. However, prior therapies with known clinical benefit (including radiation) for specific tumor types are required. If patients are deemed ineligible for such therapies in the opinion of the Investigator, the Investigator must document the reason the patient is considered ineligible.
• ✓. Patients must have a Karnofsky Performance Score (KPS) of greater than or equal to 70. Patients with severe paraparesis/paraplegia who need minimal assistance for self-care due to their motor deficit but are otherwise functionally independent will be considered eligible.
• ✓. (Inclusion Criterion #4 was removed in Amendment 3.)
• ✓. Patients must not have received prior investigational or approved cytotoxic chemotherapy within 28 days prior to the first dose of study drug (Cycle 1, Day 1); 42 days in the case of nitrosoureas; 42 days in the case of bevacizumab; 28 days or 5 half-lives (whichever is less; but not less than 14 days) in case of investigational or approved molecularly targeted agent; 14 days in the case of radiotherapy.