View clinical trials related to Glioblastomas.
Filter by:This study is a non-randomized, prospective, multicentric feasibility study assessing 68Ga-PSMA PET-CT and 18F-FDOPA PET-CT to differentiate early recurrence from post-radiation modifications in patients treated with radiotherapy for glioblastoma. Patients with a MRI performed since the end of the radiotherapy until 12 months of follow up after the end of radiotherapy, will be referred for both 68Ga-PSMA and 18F-FDOPA PET-CT, whatever the conclusion of the MRI (post radiation modifications, relapse or doubtful MRI). The rationale of doing 68Ga-PSMA and 18F-FDOPA brain PET-CT in each case will be discussed in detail with the referring physician and an informed consent will be taken from each patient for the study. The two imaging studies will be done at least with a gap of 6 hours, using the same PET-CT scanner.
Standard treatment for glioblastomas includes radiation and chemotherapy with a drug called temozolomide (Temodar); however, glioblastomas frequently develop resistance to standard treatment and recur or progress. Glioblastomas are known to have decreased levels of oxygen compared to normal tissues. There is evidence that these lower oxygen levels in glioblastomas may contribute to their ability to resist treatment effects of radiation and chemotherapy. In this study we will look to increase the oxygen concentration within the glioblastoma by adding hyperbaric treatments (the experimental part of this study) to standard treatment with radiation and temozolomide in order to see whether increasing the oxygen concentration within the tumor increases the tumor-killing ability of standard radiation and chemotherapy. In addition, the investigators are interested to evaluate the effect of this treatment protocol on a person's quality of life and level of stress, and, therefore, the investigators will ask subjects to complete several brief questionnaires while they are on-study.