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NCT06804655
Advanced technology of ex vivo drug profiling referred to as pharmacoscopy may allow to identify novel drugs for the treatment of glioblastoma and other refractory brain tumors at an individual patient level. This personalized therapeutic approach was developed and validated in pre-clinical glioma models. With the current research proposal, we seek to establish feasibility for a clinical interventional trial for patients with refractory primary brain tumors that is based on pharmacoscopy-guided selection of treatment. The study is supported by an unrestricted grant from Anti Cancer Fund.
NCT06831461
This study will be done in adults with brain tumors having good prognosis requiring treatment with radiotherapy. The current practice for brain radiotherapy involves treatment using X rays (photon radiotherapy). Proton beam therapy is a more advanced form of delivering radiation, which allows the reduction of the dose of radiation to the parts of the brain surrounding the tumor. After treatment with photon radiotherapy, certain late effects of radiation, like memory decline, hormonal deficits, hearing loss, and worsening of neurological function, can occur in some patients. From the evaluation of dose profiling, proton beam therapy has the potential to reduce the possibility of side effects by reducing the dose to critical organs. However, there is no clinical data to demonstrate whether the theoretical dose reduction translates to a clinically meaningful benefit. In the proposed study, 156 patients will be randomly allocated to either proton or photon radiotherapy in 1: 1 ratio. The primary objective of the study is to explore whether proton therapy improves functional survival, which is life expectancy without recurrence, death, or complications from radiotherapy.
NCT01472731
Brain tumors account for only 2% of all cancers but result in a disproportionate share of cancer morbidity and mortality. The five-year survival rates for the most common histologic subtypes, anaplastic astrocytoma and glioblastoma (glioblastoma multiforme, GBM), are 30% and 10%, respectively. Drugs affecting transforming growth factor-β (TGF-β) might be of great interest for malignant glioma treatment. TGF-β is an oncogenic factor in advanced tumors where it induces proliferation, angiogenesis, invasion, and metastasis as well as suppresses the antitumoral immune response. In addition TGF-β and its TGF-β receptors, TβRI and TβRII, are overexpressed in GBMs. TGF-β signaling is involved in multiple steps of GBM development. GC1008 is an antibody that is capable of neutralizing TGF-β and may therefore offer a new treatment option for patients with malignant glioma. For therapeutic success, it may be essential for GC1008 to reach the target site, in this case located in the brain. We will be able to prove this with 89Zr-GC1008 PET imaging. This imaging method also allows quantification of the amount of GC1008 reaching the tumor. This study consists of 2 parts. In part 1, patients with a suspicion of a malignant glioma undergo an 89Zr-GC1008 PET scan before standard (surgical)treatment. In part 2, patients with relapsed malignant glioma will undergo an 89Zr-GC1008 PET scan and will be treated with GC1008 in a phase II study as there is no standard treatment for these patients. We hypothesize that GC1008 uptake in brain tumors can be visualized and quantified using the 89Zr-GC1008 PET scan and GC1008 might offer a new treatment option for patients with relapsed malignant gliomas.
NCT00241670
The aim of the study "Fluorescence-guided resection of malignant gliomas with 5-Aminolevulinic acid (5-ALA) vs. conventional resection" is to determine how accurately contrast agent-accumulating tumour can be removed by primary surgery and to assess the clinical usefulness of this method.