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Clinical Trial Summary

This phase I/IIA trial finds out the possible benefits and/or side effects of radiosurgery before surgery (preoperative) in treating patients with high grade glioma. Radiosurgery uses special equipment to position the patient and precisely give a single large dose of radiation to the tumor. This method may kill tumor cells with fewer doses over a shorter period and cause less damage to normal tissue. Giving pre-operative radiosurgery may improve the odds of brain tumor control and reduce treatment-related side effects.

Clinical Trial Description

PRIMARY OBJECTIVE: I. To evaluate the safety of preoperative radiosurgery in the treatment of patients with biopsy-proven high grade glioma prior to conventional therapy. SECONDARY OBJECTIVES: I. Acute clinical toxicity profile using Common Terminology Criteria for Adverse Events (CTCAE) version 5 (defined as within 4 weeks of completion of postoperative radiotherapy. II. Radiographic tumor control at 12 months following surgery (per Response Assessment in Neuro-Oncology [RANO] criteria). III. Rate of pseudoprogression at first post radiation scan (RANO criteria). IV. Overall survival at 12 months following surgery. CORRELATIVE RESEARCH OBJECTIVE: I. Evaluation of the tumor repair pathways triggered by radiation, tumor vascular changes, tumor microenvironment immune profiling, cell cultures, and the creation of orthotopic xenograft models for future study. OUTLINE: Patients are assigned to 1 of 2 cohorts. COHORT A: Patients undergo magnetic resonance imaging (MRI)-guided stereotactic biopsy. Patients then undergo radiosurgery over 1 fraction. Within 14 days, patients undergo surgery. Within 4-6 weeks, patients then receive standard of care radiation therapy over 30 fraction and temozolomide daily with or without tumor treating fields (TTF) at the discretion of the treating neuro-oncologist. COHORT B: Patients undergo surgery. Within 4-6 weeks, patients then receive standard of care radiation therapy over 30 fraction and temozolomide daily with or without TTF at the discretion of the treating neuro-oncologist. After completion of study treatment, patients are followed up every 2-3 months for up to 5 years. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05030298
Study type Interventional
Source Mayo Clinic
Status Not yet recruiting
Phase Phase 1/Phase 2
Start date September 15, 2021
Completion date September 15, 2025

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