View clinical trials related to Glioblastoma.
Filter by:MicroRNAs (miRNA) are molecular biomarkers that post-transcriptionally control target genes. Deregulated miRNA expression has been observed in diverse cancers. In high grade gliomas, known as glioblastomas, the investigators have identified an oncogenic miRNA, miRNA-10b (mir-10b) that is expressed at higher levels in glioblastomas than in normal brain tissue. This study tests the hypothesis that in primary glioma samples mir-10b expression patterns will serve as a prognostic and diagnostic marker. This study will also characterize the phenotypic and genotypic diversity of glioma subclasses. Furthermore, considering the critical function of anti-mir-10b in blocking established glioblastoma growth, the investigators will test in vitro the sensitivity of individual primary tumors to anti-mir-10b treatment. Tumor, blood and cerebrospinal fluid samples will be obtained from patients diagnosed with gliomas over a period of two years. These samples will be examined for mir-10b expression levels. Patient survival, as well as tumor grade and genotypic variations will be correlated to mir-10b expression levels.
This phase I trial studies the side effects and best dose of adavosertib when given together with radiation therapy and temozolomide in treating patients with glioblastoma that is newly diagnosed or has come back. Adavosertib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving adavosertib, radiation therapy, and temozolomide may work better in treating patients with newly diagnosed or recurrent glioblastoma compared to radiation therapy and temozolomide alone.
This research study is a Phase II clinical trial, which tests the safety and effectiveness of an investigational drug to learn whether the drug works in treating a specific cancer. "Investigational" means that the study drug tivozanib is still being studied. It also means that the FDA has not yet approved tivozanib for your type of cancer. Tivozanib is an anti-angiogenesis medicine that fights different types of cancer by blocking the blood supply to the tumor, so that the tumor does not receive the nutrients it requires to grow. In this research study, we are looking to see what effects, good and bad, tivozanib will have on you and your disease.
This is a study to determine the safety and efficacy of the drug, mebendazole, when used in combination with standard chemotherapy drugs for the treatment of pediatric brain tumors. Mebendazole is a drug used to treat infections with intestinal parasites and has a long track record of safety in humans. Recently, it was discovered that mebendazole may be effective in treating cancer as well, in particular brain tumors. Studies using both cell cultures and mouse models demonstrated that mebendazole was effective in decreasing the growth of brain tumor cells. This study focuses on the treatment of a category of brain tumors called gliomas. Low-grade gliomas are tumors arising from the glial cells of the central nervous system and are characterized by slower, less aggressive growth than that of high-grade gliomas. Some low-grade gliomas have a more aggressive biology and an increased likelihood of resistance or recurrence. Low-grade gliomas are often able to be treated by observation alone if they receive a total surgical resection. However, tumors which are only partially resected and continue to grow or cause symptoms, or those which recur following total resection require additional treatment, such as chemotherapy. Due to their more aggressive nature, pilomyxoid astrocytomas, even when totally resected, will often be treated with chemotherapy. The current first-line treatment at our institution for these low-grade gliomas involves a three-drug chemotherapy regimen of vincristine, carboplatin, and temozolomide. However, based on our data from our own historical controls, over 50% of patients with pilomyxoid astrocytomas will continue to have disease progression while on this treatment. We believe that mebendazole in combination with vincristine, carboplatin, and temozolomide may provide an additional therapeutic benefit with increased progression-free and overall survival for low-grade glioma patients, particularly for those with pilomyxoid astrocytomas. High grade gliomas are more aggressive tumors with poor prognoses. The standard therapy is radiation therapy. A variety of adjuvant chemotherapeutic combinations have been used, but with disappointing results. For high-grade gliomas this study will add mebendazole to the established combination of bevacizumab and irinotecan to determine this combinations safety and efficacy
This molecular biology and phase II trial studies how well imetelstat sodium works in treating younger patients with recurrent or refractory brain tumors. Imetelstat sodium may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.
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.
In order to test the investigators hypothesis that 8 teaspoons of POLYMVA is safe in a population of patients with grade IV brain astrocytoma (glioblastoma multiforme), the investigators will conduct an open-label, prospective, un-blinded study. The investigators expect that at least 70% of subjects will tolerate the supplement and complete the trial. The investigators expect no Serious Adverse Event to occur during this trial which is attributable to study compound. During this study, the investigators will also collect other qualitative data to be utilized for future double-blinded studies which will be aimed at determining whether grade IV astrocytoma patients who receive PolyMVA achieve a better quality of life during their chemo-therapeutic regimens versus grade IV astrocytoma patients who do not receive PolyMVA.
The investigators hope to improve overall median survival of patients with recurrent Glioblastoma by investigating continuous low-dose daily Temozolomide plus or minus five treatments of re-irradiation.
In the current proposed trial the role of the low-dose WBRT (0.15 Gy) would be to safely treat the microscopic distant GBM cells outside of the high dose RT region and sensitize the gross tumor, while the focal radiation dose (1.85 Gy) to the gross tumor will bring the total tumor dose of 2 Gy per fraction which is the standard of care. Radiotherapy (RT) has been integral in the treatment of GBM since the 1970s when Walker et al. showed that post-operative whole brain radiotherapy (WBRT) offered significant improvements in median survival time, and even more so when given with concomitant BCNU chemotherapy. Ensuing dose escalation studies found the optimal dose to be 60 Gy. Patients could not tolerate escalation to higher doses than 60 Gy with WBRT due to unacceptable toxicity. Even with WBRT of 60 Gy, a huge volume of healthy brain tissue was unnecessarily treated with high-dose radiation; recurrences with WBRT remained overwhelmingly local. Hochberg and Pruitt (1980) found that after WBRT only 3% of recurrences were outside 2 cm of the margins of the primary tumor. With the rise of the CT scan in the 1980s and the MRI in the 1990s, along with subsequent improvements in three-dimensional conformal radiation, partial brain RT (PBRT) became practical since tumor margins could be visualized and irradiated more accurately. - Subsequently, WBRT was shown to provide no survival benefit over PBRT at the same dosage; - thus, the latter took over as the standard of care.
The purpose of this research study is to test the safety, tolerability, and effectiveness of the combination of three drugs, sorafenib (Nexavar®), valproic acid (Depakote®), and sildenafil (Viagra®), when used to treat high-grade glioma, a type of brain tumor.