A Pilot Study to Determine Nutrition Status in Glioblastoma Multiforme Patients
Brain CancerThe study is designed to evaluate how the composition of a participant's body, diagnosed with a brain tumor (glioblastoma multiforme) as determined by bioelectrical impedance analysis can predict the progression and outcomes of disease.
Measuring Non-Enhancing Glioblastoma Progression
Brain TumorGlioblastomaThe goal of this clinical research study is to learn if magnetic resonance imaging with magnetic resonance spectroscopy ("MRI/MRS" scanning) can measure any extra growth in the tumor that does not show up on regular MRI images. This study procedure will be performed on patients with recurrent glioblastoma who are either being treated with chemotherapy that blocks blood vessel growth, or will soon begin this type of chemotherapy.
Post Marketing Surveillance: Newly Diagnosed Glioblastoma Multiforme Treated With Radiotherapy/Temozolomide...
GlioblastomaThe purpose of this surveillance is to collect more safety and efficacy data in "non-study" patients during concomitant and adjuvant temozolomide therapy.
Comparison of Different Methods to Test MGMT Status in Glioblastoma Patients
GlioblastomaTreatment for newly diagnosed glioblastomas currently involves surgical resection followed by Temozolomide chemotherapy with concomitant radiotherapy, and then 6 cycles of Temozolomide in adjuvant. According to many studies, only those patients not expressing the enzyme repair MGMT benefit from the adjunction of Temozolomide. Therefore, many patients receive unnecessary treatment. The aim of this project is to compare different techniques for analysis of MGMT in order to choose the approach with the best cost/utility ratio, which will allow the selection of patients likely to respond to TMZ chemotherapy during the first course of GBM treatment.
Exploratory Study of the Modulation of the Immune System by VEGF Blockade in Patients With Glioblastoma...
Glioblastoma MultiformeBlood samples will be obtained from newly diagnosed GBM patients treated with combined radiotherapy (RT), temozolomide (TMZ) and bevacizumab (BEV) at specific time points. The primary outcome is the shift in T reg cell fraction a defined by determining the proportion of CD4 cells that are CD4+ CD25.
Glioblastoma Response Prediction to Apatinib
GlioblastomaAnti-angiogenic therapy is an important treatment strategy for recurrent glioblastoma. Our previous study provided evidence for a potential benefit of apatinib, a humanized monoclonal antibody against VEGFR-2, when added to temozolomide chemotherapy in patients with recurrent glioblastoma. Some patients showed durable responses and prolonged survival, with recorded survival times of over 30 months in 6.4% patients. However, a subset of patients progressed in 2 months. There is a strong need to better predict and monitor apatinib treatment response to prevent patients from adverse effects of ineffective therapy. In this study, whole genome sequencing and RNA-sequencing of formalin-fixed, paraffin-embedded tumor materials from the participants who received apatinib and temozolomide treatment will be performed to identify the response biomarkers and patients who may benefit most from apatinib, avoiding unnecessary potential toxicity and cost for those who are unlikely to benefit from the drug.
Impact of Bevacizumab on Symptom Burden and Neurological Deficits in Patients With Recurrent Glioblastoma...
GlioblastomaAngiogenesisThis retrospective non - interventional patient chart review will be utilizing real world clinical data from patients treated for rGBM at the University Regensburg Medical center either with or without bevacizumab. Only patients will be analyzed who were potentially eligible for bevacizumab treatment. The study is designed to investigate the potential effects of bevacizumab treatment on the functional status, symptom burden, neurological deficits, time to tumor progression and overall survival between cohorts potentially eligible for bevacizumab.
Engagement of Patients With Advanced Cancer
End of LifeAdvanced Cancer12 moreThe Engagement of Patients with Advanced Cancer is an intervention that utilizes well-trained lay health coaches to engage patients and their families in goals of care and shared decision-making after a diagnosis of advanced cancer. Although lay health workers have never been tested in this role, we hypothesize that lay health workers can feasibly improve goals of care documentation and help to reduce unwanted healthcare utilization at the end of life for Veterans diagnosed with new advanced stages of cancer and those diagnosed with recurrent disease.
Monitoring Anti-angiogenic Therapy in Brain Tumors by Advanced MRI
GlioblastomaThis research study aims to predict treatment response to anti-angiogenic therapy (Avastin) using advanced magnetic resonance imaging (MRI) and spectroscopy (MRS) for Glioblastoma patients.
Assessing the Effectiveness of 2D Non-Navigated Intraoperative Ultrasound in Glioma Surgery
GliomaGlioma4 moreThis 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.