Active clinical trials for "Glioblastoma"

This research study aims to predict treatment response to anti-angiogenic therapy (Avastin) using advanced magnetic resonance imaging (MRI) and spectroscopy (MRS) for Glioblastoma patients.

Bevacizumab, a monoclonal antibody against vascular endothelial growth factor (VEGF), is an antiangiogenic treatment currently proposed to recurrent high grade glioma patients. Unfortunately some patients fail to respond to this treatment and finding biological factors allowing the discrimination between potential responders and non responders would be very helpful. As the immune system plays a key role in angiogenesis induction and maintenance in cancer, it could serve as a surrogate marker of angiogenesis in cancer patients. The purpose of this study is to determine the influence of bevacizumab treatment on circulating immune cells in high grade glioma patients and to search for a link between the variation of these cells and the response to treatment.

This is a prospective biomedical study of interventional type which includes 16 patients on 52 months (24 months of inclusion and 28 months of follow up). This pilot study, combining a metabolic imaging approach (Proton Magnetic Resonance Spectroscopy = 1HMRSI) and a biological one, will be performed in patients harbouring a Glioblastoma (GBM)to determine whether MRI markers of aggressiveness (CNI2) are associated with specific biological patterns as regards to GBMSC (GBM contains tumor stem cell). In the first part of the study, patients with radiological criteria of GBM amenable to surgical resection will be included ; pre-operative multimodal MRI scans will be done and all data acquired (including H1MRS and DTI data) will be integrated in the image-guided surgical device (ie neuronavigation system) to be used intraoperatively. During tumor resection, tissue samples will be individualized, based on their multimodal imaging characteristics and sent to the radiobiology laboratory INSERM for biological analysis. After surgery, patient will be treated by the standard radio-chemotherapy stupp protocol and will be followed according to standard practices; multimodal MRI will be performed every 2 months during the first year and then every 3 months until progression.

Irinotecan has demonstrated activity in malignant gliomas in multiple phase II studies. The activity is limited, with an approximately 15 % response rate and a progression-free survival of 3-5 months. Given the synergy between irinotecan and bevacizumab in colorectal cancer, and the high-level expression of vascular endothelial growth factor on malignant gliomas, one would expect synergy between bevacizumab and irinotecan against gliomas. In addition, 40-50 % of GBM have EGFR amplification/mutation making the EGFR an additional target. By combing cetuximab, with irinotecan and bevacizumab, one would expect further response, than irinotecan and bevacizumab alone. In addition, recurrent gliomas have an extremely poor prognosis, so innovative therapies are needed.

Glioblastoma multiforme (GBM) is the most common primary brain tumor in adults. Despite intensive research efforts and a multimodal management that actually consists of surgery, radiotherapy and chemotherapy with temozolomide, the prognosis is dismal. The aim of the current observational study is to determine immune phenotypes in individual patients with GBM at the time of diagnosis and to correlate tumor size, location (imaging), tumor properties (isocitrate dehydrogenase - 1 (IDH-1), o6-methylguanine-DNA-methyltransferase (MGMT), epidermal growth factor receptor (EGFR) mutation status, etc.) with clinical data, such as progression free and overall survival, Karnofsky index (progression free survival (PFS),overall survival (OS), Karnofsky score( KFS)), with blood immune phenotypes, biomarkers, and immune histochemical results of tumor infiltrating lymphocytes, macrophages, myeloid derived suppressor cells (MDSC), etc.. The different immunological phenotypes could predict a positive response to specific immunological therapeutic strategies and select the individual therapeutic plan for an individual GBM patient.

New approaches are needed for patients newly diagnosed with bulky glioblastoma (GB) and/or with severe neurological impairment that cannot benefit from first line temozolomide (TMZ)-basedn chemoradiotherapy. Bevacizumab (BEV), an antiangiogenic anti-VEGF-R monoclonal antibody, has a rapid impact on tumor-related brain edema in recurrent GB. The present study reports the feasibility and efficacy of an induction treatment with TMZ and BEV to alleviate the initial neurological impairment and/or to reduce the tumor volume before a delayed chemoradiotherapy.

This single-arm, open-label, multicenter, observational study will evaluate the efficacy and safety of Avastin (bevacizumab) in patients with glioblastoma multiforme in first or second relapse. Data will be collected from eligible patients initiated on Avastin treatment according to local label for up to 3 years.

This clinical trial is to validate and demonstrate the clinical usefulness of a protocol for Magnetic Resonance Imaging (MRI) in people with high grade glioma brain tumors.

Despite maximal safe surgery followed by combined chemo-radiation therapy, the outcome of patients suffering from glioblastoma (GBM) remains extremely poor with a median survival of 15 months. Hence, new avenues have to be taken to improve outcome in this devastating disease. Given their intracerebral localization and their highly invasive features, GBM pose some specific challenges for the development of adequate tumor models. Orthotopic xenograft models directly derived from the tumor of a patient might represent an attractive perspective to develop patient-specific targeted therapies. This approach remains however to be validated for GBM as it offers specific challenges, including the demonstration that the properties of xenograft models validly represent treatment relevant features of the respective human tumors. In this innovative project the investigators aim to compare and validate an approach of paired human GBM and respective derived orthotopic xenografts in the mouse brain on the levels of radiological behavior and metabolism of the tumors, as determined by high resolution MRI of the patients (7T MRI) and the respective orthotopic mouse xenografts (14.1T MRI), as well as on the level of the transcriptome, genome, and methylome of the original GBM tissue and respective derived xenografts/glioma sphere lines. The data will be integrated in multidimensional analyses and interrogated for similarities and associations with molecular GBM subtype. This pilot project will provide the basis for the crucial next steps, which will include drug intervention studies. New promising drugs, tested pre-clinically in the mouse orthotopic xenograft models established here using the radiologic/metabolic/molecular procedures described for this project, will be taken into patients in phase 0 studies. GBM patients will receive radiologic/metabolic follow-up using high resolution MRI under drug treatment, followed by resection of the tumor and subsequent acquisition of molecular data.

This is an open-label positron emission tomography/near infrared (PET/NIRF) study to investigate the imaging navigation performance and evaluation efficacy of dual modality imaging probe 68Ga-BBN-IRDye800CW in glioblastoma (GBM) patients. A single dose of 40μg/111-148 Mega-Becquerel (MBq) and 1.0 mg/ml 68Ga-BBN-IRDye800CW will be injected intravenously before the operation and intraoperative respectively. Visual and semiquantitative method will be used to assess the PET images and real-time margins localization for surgical navigation.