View clinical trials related to Primary Brain Neoplasms.
Filter by:Background: The number of people who get tumors of the brain or central nervous system (CNS) is lower than other cancers. But these tumors cause a higher rate of serious effects and even death. Researchers want to test existing samples of tissue from these tumors to learn more about them. This may lead to better treatment. Objective: To study stored samples of CNS tumors to learn more about the tumors and explore new ways to diagnose them. Eligibility: The study will use tissue samples already collected at NIH from people with brain or CNS tumors. Design: The participants will have given their consent in a previous study. Researchers will review the tissue samples and any data collected about them. Researchers will do lab tests and scans on the samples. All data will be kept secure.
The purpose of this study is to determine the safety and utility of 5-aminolevulinic acid (ALA) for identifying your tumor during surgery. 5-ALA is not FDA approved at this time. When the investigators remove the tumor from your brain, it is important that they remove all of the tumor and not remove parts of normal brain. Sometimes this can be difficult because the tumor can look like normal brain. In some brain tumors, 5-ALA can make the tumors glow red under blue light. This may make it easier for your doctor to take out all of the tumor from your brain. The purpose of this study is to: - Make sure that 5-ALA helps the doctor remove more of the tumor. - Make sure 5-ALA does not cause any side effects. If you do not want to participate in this study, your doctor(s) will still do their best to remove all of the tumor in your brain. Whether or not you join this study will not change your treatment for your brain tumor.