View clinical trials related to Low Grade Glioma.
Filter by:This retrospective study aims to assess the utility of 2D non-navigated intraoperative ultrasound (ioUS) as a cost-effective alternative for guiding the surgical resection of gliomas and for detecting residual tumor. The study will analyse the records from consecutive adult patients diagnosed with gliomas, undergoing craniotomy between June 2018 and June 2023. The extent of resection (EOR) will be determined using postoperative MRI as the gold standard. The study will also examine the sensitivity and specificity of ioUS in detecting residual tumor. This research seeks to determine if ioUS can be an affordable and reliable tool that, combined with other intraoperative adjuncts, may aid neurosurgeons in achieving the maximum safe resection in glioma surgery.
Background : The supplementary motor area is the most common/preferential brain location of LGG. This area plays an important role in many motor and cognitive functions such as motor initiation, bimanual coordination and executive functions. Many studies describe the supplementary motor area syndrome resulting from lesions in this area. News managements for LGGs consisting in intraoperative mapping in awake patients reduce significantly neurological disorders and increase also the overall survival . However, the literature does not provide data concerning motor and cognitive functions in a long term and their consequences in the quality of life of patients. Objective : The aim of our research project is to identify whether there are some motor or neurocognitive deficit in the short and the long term in a population of patients who have medical story of LGG resection in the supplementary motor area.
Low-grade gliomas (LGGs) are the most common intracranial tumors in children, accounting for about 40% of intracranial tumors in children. The biological characteristics and clinical prognosis of LGGs vary greatly, and they can present different biological characteristics such as restricted growth, invasive growth, and malignant transformation during their development. The prognosis of LGGs is related to the degree of tumor resection, histological type, and whether it has spread. For LGGs, surgical resection is the main treatment method. However, many tumors located in the visual pathway, brainstem, hypothalamus and other midline parts, it is impossible to completely remove. Radiotherapy can effectively control tumor progression to a certain extent, but radiotherapy can cause obvious and serious delayed damage, such as cognitive impairment, endocrine disorders, cerebrovascular events, and second tumors. Chemotherapy can effectively treat LGGs in children, and can postpone or avoid radiotherapy. It is the preferred treatment for children with LGGs after surgery. Carboplatin combined with vincristine, the CV regimen, is currently the main chemotherapy regimen for the treatment of children with LGGs. Anti-angiogenesis is a new type of treatment. Bevacizumab, a humanized monoclonal antibody that targets vascular endothelial growth factor (VEGF). Among children with relapsed, refractory or progressing LGGs, the effective rate of Bev combined with irinotecan was 44%, and the 6-month and 2-year progression-free survival rates were 85% and 48%, respectively. However, almost all of them were treated with Bev progressed again. Tumor growth is more aggressive after Bev treatment fails. Recombinant human endostatin (rh-ES) is an endogenous broad-spectrum angiogenesis inhibitor that has been shown to significantly improve therapeutic efficacy when combining with conventional chemotherapy agents in non-small-cell lung cancer, breast cancer and melanoma.Previous retrospective studies of the research team found that rh-ES combined with CV can treat LGGs in children effectively, shorten the onset time, help quickly alleviate the symptoms of brainstem damage, and improve the quality of life. This study intends to use prospective clinical studies to further confirm the efficacy and safety of the anti-angiogenic drug rh-ES combined with traditional CV regimens in the treatment of children with LGGs.
Retrospective longitudinal follow-up in patients with diffuse low-grade glioma with multimodal MRI assessment
This phase II trial studies how well F-18 fluoroethyltyrosine (fluoroethyltyrosine) works in detecting tumors in participants with intracranial tumors that have come back. FET accumulates in malignant cells within intracranial neoplasms and can be used to detect recurrent disease and characterize the grade of glial neoplasms. Imaging agents such as FET can help oncologist to see the tumor better during a positron emission tomography (PET) scan.
The cost of particle therapy (PT) are considerably higher than conventional radiotherapy (RT) with photons. Considering potential dosimetric advantages of PT, it is necessary to determine if PT are more cost-effective than photons per indication regarding quality of life, survival, and progression free survival. Given the lack of evidence for the benefit of particle therapy in relevant cases, investigators proposed an in silico trial to investigate to what extend proton therapy decrease the amount of irradiated normal tissue and, consequently, the risk of side effects in the surrounding normal tissue as well as the risk of secondary tumors. Given validated dose-response curves and/or NTCP models, a 10% lower mean dose of proton therapy on normal tissue compared to photon therapy should result in at least a 20% lower risk of side effects.
Determine the overall discriminatory ability of FET PET in the diagnosis of glioma grade II (referring to the current diagnostic gold standard represented by the histopathology exam of a tumor sample).
The purpose of this study is to determine whether oral vinorelbine is effective in the treatment of children with progressive or recurrent unresectable low grade glioma.
Grading of gliomas is of significant clinical importance since the prognosis as well as the treatment of choice are distinct in low-grade and high-grade gliomas. With standard MRI modalities, however, a reliable distinction is often impossible. Moreover, the gold standard for glioma grading by histopathology may also have limitations due to unrepresentative tumor samples. Therefore, more advanced MRI techniques are urgently needed that would have higher sensitivity and specificity in the definition of tumor type, grade and extent. Assessment of radiologic response for high-grade gliomas utilizes the updated RANO criteria 12 weeks after completion of chemoradiotherapy. However, there is an urgent need to identify nonresponding patients earlier, preferentially midtreatment in order to consider alternative treatment strategies. Imaging biomarkers, such as diffusion weighted MR imaging (DWI), have provided promising results in assessing early treatment response. Furthermore, a serum biomarker with diagnostic value could improve tumor follow-up and clinical management of gliomas. The aim of our study is to develop novel imaging protocols suitable for the magnetic resonance imaging (MRI) of glioma using advanced MRI techniques such as rotating frame imaging, novel DWI acquisition and post-processing methods We also study the correlation between advanced MRI parameters and histopathology of the tumor specimen. In addition, early treatment response is assessed with advanced MRI parameters at 3 week and 10 week after initiation of radiotherapy. Finally, our objective is to study the association between serum biomarkers and corresponding MRI with potential tumor progression.
The purpose of this study is to investigate whether weekly Vinorelbine treatment can shrink or slow the growth of pediatric low-grade gliomas that have either returned or are continuing to grow. Vinorelbine is a semi-synthetic vinca alkaloid that has recently generated interest in patients with pediatric low-grade glioma. It has been specifically synthesized to broaden its therapeutic spectrum and decrease the neurotoxicity associated with related agents.