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Preoperative Radiosurgery for the Treatment of High Grade Glioma, NeoGlioma Trial

Preoperative Radiosurgery in High Grade Glioma: A Phase I Clinical Trial: The NeoGlioma Study

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05030298
Enrollment
28
Registered
2021-09-01
Start date
2023-05-23
Completion date
2027-09-15
Last updated
2025-11-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malignant Glioma

Brief summary

This phase I 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.

Detailed description

PRIMARY OBJECTIVE: I. To evaluate the feasibility, safety and maximum tolerated dose (MTD) 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: This is a dose-escalation study. Patients undergo magnetic resonance imaging (MRI)-guided stereotactic biopsy. Within 14 days of registration, patients undergo either standard of care surgery or radiosurgery in 1 fraction. Within 14 days, patients who underwent radiosurgery then undergo surgery. Within 4-6 weeks, all 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. Additionally, patients undergo MRI and blood sample collection and optional biopsy throughout the study. After completion of study treatment, patients are followed up every 2-3 months for 12 months and then every 3 months for up to 3 years after registration.

Interventions

RADIATIONRadiation Therapy

Undergo radiation therapy

RADIATIONRadiosurgery

Undergo radiosurgery

Undergo MRI-guided stereotactic biopsy

DRUGTemozolomide

Drug

Undergo TTF

PROCEDUREMagnetic Resonance Imaging

Undergo MRI

PROCEDUREBiospecimen Collection

Undergo blood sample collection

PROCEDUREBiopsy

Undergo biopsy

PROCEDURETherapeutic Conventional Surgery

Undergo surgery

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The first four patients will be treated by standard of care and all subsequently enrolled patients will undergo preoperative radiosurgery by dose escalation schedule.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age \>= 18 years * Clear clinical and radiographic evidence of primary high grade glioma (HGG) as judged by the Mayo multidisciplinary neuro-oncology team (World Health Organization \[WHO\] grade III-IV, including glioblastoma) regardless of IDH and MGMT status * Patients who underwent a previous biopsy confirming high grade glioma are eligible for enrollment * Planned neurosurgical resection of tumor * Judged to not be at risk of significant clinical risk (i.e. herniation) with radiation-induced edema prior to resection * Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1, or 2 * Negative pregnancy test done =\< 14 days prior to registration, for women of childbearing potential only. Patients over 50 years of age who decline pregnancy testing are still eligible without a pregnancy test. * Ability to complete questionnaire(s) by themselves or with assistance * Provide written informed consent * Willing to receive adjuvant radiotherapy at enrolling institution at the time of registration * Willing to provide tissue and/or blood samples for correlative research purposes

Exclusion criteria

* Any of the following: * Pregnant women * Nursing women who are unwilling to cease during therapy * Men or women of childbearing potential who are unwilling to employ adequate contraception * Prior history of cranial radiotherapy * Unwillingness to participate in study * Investigator discretion that enrollment on the study would pose undo harm or risk to the patient * Non-MRI compatible implanted medical device * Use of systemic anti-cancer therapy within the previous 3 months * Medical contraindication to craniotomy and tumor resection * Pathologic confirmation of grade I-II glioma, brain metastasis, or other brain tumor * Note: Patients with a history of grade I-II glioma are eligible if they have only received surgery as treatment and now there is concern for transformation to grade III-IV tumor * Primary spinal cord glioma or primary brainstem glioma * Residual tumor of excessive volume or eloquent location per investigator discretion * Patients who are unwilling or unable to comply with study procedures

Design outcomes

Primary

MeasureTime frameDescription
Maximum tolerated dose (MTD) of preoperative radiosurgeryUp to 4 weeks postoperative radiotherapyAfter the trial is completed, the MTD will be based on isotonic regression. The dose for which the isotonic estimate of the toxicity rate is closest to the target toxicity rate will be selected as the MTD. If there are ties, the higher dose level will be selected when the isotonic estimate is lower than the target toxicity rate; and the lower dose level will be selected when the isotonic estimate is greater than or equal to the target toxicity rate.
Proportion of patients experiencing any acute grade 3 or greater unplanned adverse eventUp to 4 weeks postoperative radiotherapyAssessed per Common Terminology Criteria for Adverse Events (CTCAE) version (v)5.0. The toxicity rate will be estimated using a binomial estimator and a one-sided 95% confidence interval (CI) of the rate will be computed with normal approximation.
Acute clinical toxicityUp to 4 weeks postoperative radiotherapyAssessed per CTCAE v5.0. The maximum grade for each type of acute adverse events will be recorded for each patient. Data will be summarized as frequencies and relative frequencies by treatment arm. Additionally, the relationship of the adverse event(s) to the study treatment will be taken into consideration. Rates will be compared between arms using chi-squared tests.

Secondary

MeasureTime frameDescription
Overall survivalAt 12 months post-surgeryOverall survival (OS) is defined as the time from study enrollment to death by any cause. Will be estimated with a Kaplan-Meier estimator and curve for patients treated with preoperative radiosurgery. Estimates will be given for specific time points along with 95% CIs.
Radiographic tumor controlAt 12 months post-surgeryAssessed per Response Assessment in Neuro-Oncology (RANO) criteria. The cumulative incidence of radiographic tumor recurrence will be estimated using a competing risks method (Gooley et al.). The competing risks will be death.
Rate of pseudoprogressionAt first post radiation scanAssessed per RANO criteria. Data will be summarized as frequencies and relative frequencies overall and by treatment dose. Additionally, the relationship of the pseudoprogression(s) to the study treatment will be taken into consideration.

Other

MeasureTime frameDescription
Tumor tissue evaluation of tumor changesUp to 14 days Post-radiosurgeryAny excess tissue recovered from the surgical specimen (after standard of care pathologic evaluation) will undergo a series of advanced testing, potentially including but not limited to 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. Analysis will be completed outside the scope of this protocol.

Countries

United States

Contacts

Primary ContactClinical Trials Referral Office
mayocliniccancerstudies@mayo.edu855-776-0015

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026