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the investigators hypothesise that 18F-FDOPA PET kinetic parameters are good biomarkers to characterise suspected LGG brain lesions that exhibit no contrast on MRI, for identifying aggressive lesions. These parameters could constitute diagnostic biomarkers for this indication. This new diagnostic tool could enhance patient care in the short term in an evolving pathology affecting socially active subjects with a poor prognosis
The purpose of this study is to establish the recommended phase 2 dose of eflornithine in combination with temozolomide in patients whose glioblastoma or astrocytoma is newly diagnosed, and to evaluate safety and tolerability of this combination at that dose.
This is an interventional, non-randomized, single site study. Brain tumor samples will be collected from patients for organoids generation and subject to panel drugs screening and QPOP analysis to derive the optimal drug combinations for treatment at the time of first high grade astrocytic glioma recurrence. The investigators hypothesize that patient-derived organoids (PDOs) mimic the biological characteristics of high grade astrocytic gliomas and serve as an ideal platform for the evaluation of drug sensitivities, accurately reflecting the patient's therapeutic response to the drugs.
The purpose of this research study is to determine if fluoxetine increases lysosomal stress in patients with recurrent IDHwt glioma by evaluating LAMP1 expression in tumor samples obtained pre-resection via biopsy and during surgery. Lysosomes are organelles (structures in cells) that contain digestive enzymes (substances that break down chemicals) that help keep the cells free of extra or worn out cell parts. Fluoxetine, a drug approved by the FDA to treat problems like depression and anxiety, can cause changes to structures in cells called lysosomes that then improve how well the chemotherapy drug temozolomide (TMZ) kills cancer cells in the brain.
Low-grade gliomas (LGGs) are the most common brain tumors in children, and a subset of these tumors are treated definitively with focal radiation therapy (RT). These patients often survive for many years after receiving RT and experience late deficits in memory. Verbal recall is an important measure of memory and is associated with other important functional outcomes, such as problem-solving, independence of every-day functioning, and quality of life. Decline in memory, as measured by verbal recall, is associated with RT dose to the hippocampi. Therefore, this phase II study investigates the feasibility of reducing RT doses to the hippocampi (i.e., hippocampal avoidance [HA]) by...
When controlling for tumor present in the Sentinel lymph node (SLN), intranodal hypoxia, as measured by Carbonic Anhydrase IX (CAIX IHC), is associated with worse PFS. This suggests that melanoma tumors may be utilizing deregulated metabolism as a means of propagating themselves to the next station of metastasis. This study aims to prospectively validate previous findings. Patients who are to undergo WLE and SLNB per standard of care (SOC) will be evaluable. It is hypothesized that SLN(s) with increased hypoxia, as measured by pimonidazole staining, will be associated with worse Progression-free Survival (PFS).
Technologies 3D are demonstrating enormous potential for innovation in the field of surgery,introducing the concept of "treatment customization" (from planning surgery to implant design and manufacturing) on the patient's anatomy, simply by taking advantage of the patient's own common diagnostic images and the flexibility of 3D printing. In fact, this new construction technology allows the construction of the complex anatomical geometries with economy, simplicity and on scales of production unattainable by other traditional technologies. This new construction technology allows, in fact, the construction of complex anatomical geometries with economy, simplicity and on scales...
The primary purpose of this study is to characterize the pharmacokinetics and pharmacodynamics of treatment with ravulizumab intravenous infusion in pediatric participants with gMG.
The primary objective of this study is to evaluate the diagnostic performance of the CONVIVO confocal endomicroscope in discriminating between normal and abnormal tissue in vivo during brain tumor surgery. The interpretation of intraoperative images obtained in situ will be tested against conventional histologic evaluation of targeted biopsies from imaged tissue. The study team hypothesize that there will be a high degree of correlation between images obtained with the CONVIVO system and conventional histologic interpretation.
Neuroendocrine tumors (NETs) constitute approximately 0.5% of malignancies. To date, diagnosis at an increasingly early stage of the disease is possible thanks to recent technological advances in biomedical imaging. In particular, the traditional work-up for these pathologies includes endoscopy, magnetic resonance imaging (MRI) and computed tomography (CT). Furthermore, the integrated positron emission tomography methods (PET/CT and PET/MRI) are innovative molecular imaging techniques and represent a continually expanding field of research in the oncology setting. In particular, PET is taking on an increasingly relevant role for the study of neuroendocrine tumors, also thanks to...
