18F-FET-PET/MRI vs Standard MRI Alone for Stereotactic RadioTherapy Planning for High Grade Brain Gliomas

Trial Title: 18F-FET-PET/MRI vs Standard MRI Alone for Stereotactic RadioTherapy Planning for High Grade Brain Gliomas

NCT ID: NCT06499831

Condition: Glioma, Malignant

Conditions: Official terms:
Glioma

Conditions: Keywords:
FET-PET
PET, 0-(2-18F-Fluoroethyl)-L-Tyrosine
FET
Glioma
Glioblastoma

Study type: Interventional

Study phase: N/A

Overall status: Active, not recruiting

Study design:

Allocation: N/A

Intervention model: Single Group Assignment

Intervention model description: This study will assess differences in management based on standard of care MRI versus intended care based on FET-PET-MRI. Changes in management will be recorded as a simulation but patients will still receive routine standard of care.

Primary purpose: Diagnostic

Masking: None (Open Label)

Masking description: The radiation oncologist is blinded to result from FET-FET/MRI while planning on standard fo care MRI.

Intervention:

Intervention type: Diagnostic Test
Intervention name: 0-(2-18F-Fluoroethyl)-L-Tyrosine
Description: 0-(2-18F-Fluoroethyl)-L-Tyrosine positron emission tomography (FET) is an amino acid agent derived from tyrosine that is able to cross the blood brain barrier. It has been studied primarily in diagnosis and detection of tumor recurrence in glioblastomas with emerging evidence for its use in brain metastases. Compared to conventional MRI, FET-PET has been shown to delineate geographically distinct tumor volume in newly diagnosed GBM suggesting the complementarity of the two modalities.
Arm group label: High Grade Glioma

Other name: FET

Summary: Amino acid PET imaging for brain gliomas is gaining acceptance for the diagnosis and monitoring of disease. This is commonly performed in Europe. There is an opportunity to develop this tracer for use in Ontario, specifically for accurate delineation of disease for therapy planning and for prediction of disease recurrence, which is difficult with conventional imaging and clinical assessment techniques. The goals of this project are to develop this tracer in our local setting for use in our patients, provide evidence in the Ontario setting of its utility in addressing these unmet needs, and provide pilot evidence for future clinical trials. Gliomas are primary malignancies of the brain. The most aggressive and common form is glioblastoma multiforme (GBM), which accounts for more than 60% of all primary brain malignancies . The standard of care for patients with glioblastoma is maximally safe resection of the enhancing tumor regions and the necrotic core followed by radiotherapy with concurrent temozolomide. MRI is widely accepted as the method of choice for treatment planning and for following these patients to predict and to detect recurrent disease. High grade gliomas represent the most common primary brain malignancy and prognosis remains poor. The most common subtype is glioblastoma which has a 5-year survival rate of approximately 5% . Despite advances in MRI techniques, prediction and diagnosis of treatment failure remains a challenge. The result is frequent imaging mixed with uncertainty regarding the presence of viable tumor versus post-treatment effects. Furthermore, follow-up of these patients represents a high cost to the health system while symptom or disease control remains limited. A more accurate means identifying viable tumor is needed to guide management, reduce costs, and ultimately to improve patient survival and quality of life. 0-(2-18F-Fluoroethyl)-L-Tyrosine positron emission tomography (FET) is an amino acid agent derived from tyrosine that is able to cross the blood brain barrier. It has been studied primarily in diagnosis and detection of tumor recurrence in glioblastomas with emerging evidence for its use in brain metastases. Compared to conventional MRI, FET-PET has been shown to delineate geographically distinct tumor volume in newly diagnosed GBM suggesting the complementarity of the two modalities.

Criteria for eligibility:
Criteria:
Inclusion Criteria: - >= 18 years of age - High grade brain glioma (Grade 3 and 4) - No prior radiation or systemic treatment for high grade glioma - Planned to undergo radiation therapy with the following regimens: - Grade 3: 54-60 Gy over 30 fractions with temozolomide - Grade 3: 40Gy over 15 fractions with temozolomide - Grade 4: 60 Gy over 30 fractions, with or without temozolomide o Grade 4: 40 Gy over 15 fractions, with or without temozolomide - Able to tolerate PET/MRI scan with intravenous contrast - Willing to provide informed consent. Exclusion Criteria: - MRI contraindication - Creatinine clearance < 30mL/min - Inability to lie still for 40 minutes - Gadolinium allergy - Prior PET imaging - Positive pregnancy test - Breastfeeding - Patient unable to follow the protocol for any reason

Gender: All

Minimum age: 18 Years

Maximum age: N/A

Healthy volunteers: No

Locations:

Facility:
Name: Sunnybrook Health Sciences Centre

Address:
City: Toronto
Zip: M4N2M5
Country: Canada

Start date: December 15, 2021

Completion date: January 31, 2025

Lead sponsor:
Agency: Sunnybrook Health Sciences Centre
Agency class: Other

Source: Sunnybrook Health Sciences Centre

Record processing date: ClinicalTrials.gov processed this data on November 12, 2024

Source: ClinicalTrials.gov page: https://clinicaltrials.gov/ct2/show/NCT06499831