Clinical trials Below are current clinical trials.40 studies in Brain Tumor Program (open studies only). Filter this list of studies by location, status and more. The NeoGlioma Study Jacksonville, Fla., Scottsdale/Phoenix, Ariz. This study aims to evaluate the safety of preoperative radiosurgery in the treatment of patients with biopsy-proven high grade glioma prior to conventional therapy. Safety is defined as any acute grade 3 (CTCAE v5.0) or greater unplanned adverse event from the time of enrollment until 4 weeks following postoperative radiotherapy. Pre-operative Vs. Post-operative Radiosurgery For Metastatic Brain Tumors Rochester, Minn., Jacksonville, Fla., Scottsdale/Phoenix, Ariz. The purpose of this study is to determine whether there is an increase in the time of a first occurrence of either: local recurrence, leptomeningeal disease, or symptomatic radiation brain necrosis in patients with brain metastases who receive SRS prior to surgery as compared to patients who receive surgery prior to SRS. Image-based Mapping of Brain Tumors Scottsdale/Phoenix, Ariz., Rochester, Minn. The purpose of this study is to combine MRI images with histologic and genetic analysis of cancer (from blood and tissue samples) to improve the overall accuracy of diagnosis and effectiveness of cancer treatment. A Study for Cerebral Open Flow Microperfusion Rochester, Minn. The purpose of this study is to evaluate the safety and feasibility of intra-operative microperfusion during a planned neurosurgical resection of diseased brain parenchyma, including either an epileptic focus requiring temporal lobectomy or a glioma. Devices used for microperfusion are Joanneum Research’s cerebral open flow microperfusion (OFM) catheters, push and pull tubing, and MPP102-II pump. CraniSeal Post Approval Study Rochester, Minn., Jacksonville, Fla. To collect post-approval data comparing the safety and effectiveness of CraniSeal Dural Sealant to DuraSeal Dural Sealant. The study has been powered specifically to determine whether the CraniSeal device when used as an adjunct to sutured dural closure following elective cranial surgery is no worse than (i.e., non-inferior) to the DuraSeal device with respect to proportion of subjects free from post-operative cerebrospinal fluid (CSF) leaks. Additional safety outcomes (i.e., surgical site infections and adverse events/device-related adverse events) will also be captured and compared. A Registry Called Every Child for Collecting Data and Biology Specimens on Younger Patients with Cancer Rochester, Minn. The purpose of this registry called Every Child, is to collect data and biospecimens from multiple body sources for younger patients with cancer over time. Gathering health information over time from younger patients with cancer may help doctors find better methods of treatment and on-going care. Gemini Study to Evaluate the Integration of Cancer Genetic Testing into a Cancer Clinical Practice at Mayo Clinic at Arizona Jacksonville, Fla., Scottsdale/Phoenix, Ariz. The purpose of this study is to determine the prevalence of genetic mutations in cancer patients from various ethnic populations seeking care at Mayo Clinic cancer clinics. Blood-Brain Barrier Disruption (BBBD) for Liquid Biopsy in Subjects With GlioBlastoma Brain Tumors Rochester, Minn. The purpose of this study is to evaluate the safety and effectiveness of using Exablate Model 4000 Type-2.0/2.1 in adults with Glioblastoma brain tumors to increase temporarily the permeability of the blood brain barrier, allowing increased passage of circulating free DNA (cfDNA) for sampling and analysis. A Study to Develop Liquid Biopsy for Pediatric Brain Tumor Patients Rochester, Minn. The purpose of this study is to confirm detection of the H3K27M mutation in patient biofluids (CSF, blood, urine, saliva) and uncover the molecular histone (alkaline protein) profile of H3K trimethylation and H3S phosphorylation in the circulating nucleosomes isolated from the biofluids of patients with H3K27M tumors. A Study to Develop a Biorepository of Blood Samples from Cancer Patients Participating in the Gemini (IRB 19-006717) Protocol Jacksonville, Fla., Scottsdale/Phoenix, Ariz. The purpose of this study is to develop a biorepository of blood samples from cancer patients participating in the Gemini (IRB 19-006717) protocol. These samples will be used for future biomarker discovery and other translational studies. Pagination Clinical studies PrevPrevious Page Go to page 11 Go to page 22 Go to page 33 Go to page 44 NextNext Page Request an appointment Expertise & rankingsResearch Feb. 14, 2026 Share on: FacebookTwitter Mayo Clinic in Rochester, Minnesota, Mayo Clinic in Phoenix/Scottsdale, Arizona, and Mayo Clinic in Jacksonville, Florida, have been ranked among the best Neurology & Neurosurgery hospitals in the nation by U.S. News & World Report. Learn more about this top honor Brain Tumor ProgramDepartmenthomeSectionsRequest an appointmentOverviewTests & proceduresConditions treatedDoctorsDoctors by location and specialtySpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals Research: It's all about patients Show transcript for video Research: It's all about patients [MUSIC PLAYING] Joseph Sirven, M.D., Professor of Neurology, Mayo Clinic: Mayo's mission is about the patient. The patient comes first. So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. SectionsRequest an appointmentOverviewTests & proceduresConditions treatedDoctorsDoctors by location and specialtySpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20439710 Medical Departments & Centers Brain Tumor Program