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NCT05267106
This is an open-label, monotherapy study of pemigatinib in participants with recurrent glioblastoma (GBM) or other recurrent gliomas, circumscribed astrocytic gliomas, and glioneuronal and neuronal tumors with an activating FGFR1-3 mutation or fusion/rearrangement. This study consists of 2 cohorts, Cohorts A, and B, and will enroll approximately 82 participants into each cohort. Participants will receive pemigatinib 13.5 mg QD on a 2-week on-therapy and 1-week off-therapy schedule as long as they are receiving benefit and have not met any criteria for study withdrawal.
NCT05717153
This early phase I trial studies brain tumor (glioma) metabolism in response to eflornithine (DFMO) and polyamine transport inhibitor AMXT-1501 dicaprate (AMXT 1501) in patients with diffused or high grade glioma. Brain tumors use and produce certain molecules to survive and grow. DFMO is an irreversible inhibitor of ornithine decarboxylase, the enzyme catalyzing polyamine synthesis. AMXT 1501 is a polyamine transport inhibitor which prevents uptake of polyamines from the extracellular environment. This trial is being done to analyze how DFMO and AMXT 1501 affect brain tumor metabolism based on the molecules in the tumor's fluid.
NCT04000048
Low-grade diffuse glioma (GDBG) are rare tumors of young adults, whose ontogenesis is poorly understood. Patient management is based on the molecular profile defined by two molecular markers : mutations of the IDH genes and chromosomal 1p19q co-deletion. To date, the IDH and 1p19q statuses are determined on a single fragment collected from the tumor. In the case of GDBGs infiltrating several brain lobes, the sampling is done randomly on only one of the infiltrated lobes. An intra-tumoral heterogeneity of genetic alterations has been suggested and would impact management. Phylogenetic analysis of genetic alterations found, by high throughput sequencing, in each lobe invaded by the same GDBG will make it possible to assess intra-tumoral heterogeneity and to discuss, at a fundamental level, the hypothesis of a single tumor site with secondary diffusion or that of the convergent progression of two or three distinct tumor sites. Clinically, understanding the ontogenesis of GDBGs will improve their management because of the known link between brain location, dominant molecular profile, and prognosis.