View clinical trials related to Glioblastoma.
Filter by:To assess the efficacy of an Angiotensin-II inhibitor (Losartan) to reduce peritumoral edema in newly diagnosed glioblastoma patients.
This study is evaluating the safety and pharmacokinetics of ABT-414 in subjects with glioblastoma multiforme.
The investigators hypothesize that the rate of radiologically complete resections of contrast-enhancing brain tumors following surgeries aided by use of 5-ALA induced fluorescence guidance and use of an intraoperative ultra-low field MRI is higher compared to surgeries aided by 5-ALA induced fluorescene alone.
The study objectives are to assess the potential for PLX3397 to improve the efficacy of standard of care radiation therapy (RT) + temozolomide in patients with newly diagnosed glioblastoma (GBM).
This exploratory study uses [18F] Fluciclatide and Positron emission tomography (PET) imaging in patients with glioblastoma multiforme (GBM) to be treated with Bevacizumab. The primary objective of this study is to determine the association of [18F] Fluciclatide uptake, fludeoxyglucose (FDG) uptake, and tumor blood flow/perfusion determined with H215O and Magnetic resonance imaging (MRI) and correlate these variables with time to progression (TTP) in participants with GBM treated with Bevacizumab.
The goal of this clinical research study is to learn if cilengitide given in combination with bevacizumab can help to control glioblastoma. The safety of this drug combination will also be studied. Cilengitide is designed to block the flow of blood to cancer cells, which may help to slow or block the growth of cancer. Bevacizumab is designed to block the growth of new blood vessels, which may help to slow or block the growth of cancer.
Background: - Glioblastoma is an aggressive type of brain cancer that often resists treatment. TRC105 is an experimental drug that blocks the growth of new blood vessels. It is being studied for possible use in treating different kinds of cancer. Researchers want to see if TRC105 can be used to treat glioblastoma that has not responded to standard treatments. Objectives: - To test the safety and effectiveness of TRC105 in adults who have glioblastoma that has not responded to standard treatments. Eligibility: - Individuals at least 18 years of age who have glioblastoma that has not responded to standard treatments. Design: - Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. Imaging studies and other tests will be used to study the tumor before the start of treatment. - Participants will have 28-day (4-week) cycles of treatment. - Participants will have TRC105 intravenously once a week. The first infusion will take about 4 hours. The length of time needed for the infusion may be slowly reduced if it is well tolerated. - At the end of the first cycle (the first 4 weeks), the imaging studies will be repeated before continuing TRC105. - Participants will take TRC105 for as long as the tumor does not grow and the side effects are not too severe. They will have imaging studies at the end of every cycle to evaluate the tumor.
Glioblastoma multiform (GBM) is the most common malignant primary brain tumor in adults. Despite maximal treatment tumor relapse occurs regularly accompanied by unfavourable prognosis. Among other reasons, it is believed that this could be in part due to the existence of the so-called tumor stem cells (TSCs), a cellular subfraction within GBM which escape therapy by being highly resistant to irradiation and chemotherapy and thus constituting the source of tumor recurrence. GBM, like many other cancers, show a sub-population of aldehyde dehydrogenase (ALDH) overexpressing TSCs. More specifically, ALDH1A1, a cytoplasmatic isoform of ALDH, proved to be a novel stem cell marker in human GBM. In addition, ALDH1A1 has been shown to be a mediator for resistance of GBM to temozolomide (TMZ) and a reliable predictor of clinical outcome; prognosis of patients with a high level of ALDH1A1 expression was poor compared with that of patients with low levels. Consequently, ALDH1A1 may serve as a potential target to improve treatment of human GBM through inhibition of the enzyme. Disulfiram (DSF) has been used for more than sixty years in the treatment of chronic alcoholism because of the unpleasant symptoms it provokes after ethanol intake. The underlying mechanism is believed to be the accumulation of acetaldehyde in the blood, due to inhibition of the liver ALDHs. Actually, DSF is a strong inhibitor of ALDH1A1 and relatively non-toxic at therapeutic (for chronic alcoholism) doses that can penetrate the blood-brain barrier. In addition, DSF has been shown to be cytotoxic on GBM stem-like cells, inhibiting the growth of TMZ resistant GBM cells and blocking self-renewal by ~100% , while it has been identified as an inhibitor of human GBM stem cells in high-throughput chemical screens. Interestingly, a number of these actions were copper-dependent. In the current Phase II clinical trial, DSF/copper combination will be tested as an adjunctive and concurrent chemotherapy in the treatment of newly diagnosed GBM. According to our hypothesis, initiation of DSF chemotherapy after the resection of the tumor and before the introduction of the standard radio-chemotherapy will inhibit ALDH1A1 of GBM TSCs making them more susceptible to radio-chemotherapy and possibly reducing the recurrence rate of GBM. On the other hand, the addition of copper will probably enhance the cytotoxic effects of DSF possibly through augmentation of its pro-apoptotic and proteasomal inhibitory actions.
The 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.
This study is being conducted to help determine whether the addition of Interferon-alpha(α-IFN),which were determined sensitized the activity of Temozolomide(TMZ) in vivo and vitro, when given along with temozolomide during the monthly cycles that follow radiation, is able to delay tumor growth, shrink tumors, or impact how long people with newly diagnosed high-grade glioma.