The Effect of Glioblastoma PSMA Expression Following Tumour VEGF Blockade From Bevacizumab

NCT ID: NCT07052877

Last Updated: 2025-07-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

20 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-07-31

Study Completion Date

2027-07-31

Brief Summary

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This trial is a single arm study for patients receiving bevacizumab for IDH-wildtype glioblastoma. Patients receiving bevacizumab (an anti-VEGF therapy) will receive PSMA scans to investigate the role of PSMA expression in glioblastoma and its relationship to VEGF expression.

Detailed Description

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Conditions

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Glioblastoma Glioblastoma Multiforme (GBM)

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients with glioblastoma receiving Bevacizumab as part of their standard of care

PSMA PET/CT scan

Intervention Type DIAGNOSTIC_TEST

PSMA PET scan will be used to monitor changes in PSMA expression in response to bevacizumab.

Interventions

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PSMA PET/CT scan

PSMA PET scan will be used to monitor changes in PSMA expression in response to bevacizumab.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* \> 18 year of age
* ECOG 0-2
* Able to provide informed consent for the study
* Minimum of 1 month from completion of radiotherapy with clinical or radiography evidence suggesting residual tumour
* Confirmed glioblastoma IDH1/2 wildtype (WHO2021)
* For bevacizumab treatment as per treating physician
* Able to comply with trial requirements

Exclusion Criteria

* No major organ impairment that would likely lead to unacceptable toxicities- eg significant cardiac, hepatic, renal or haematologic dysfunction (based on clinician assessment)
* Any contraindication to bevacizumab, MRI gadolinium contrast or 68Ga-PSMA-617 radioisotope
* Any implant, foreign body, 3T MRI incompatible device or other contraindication to MRI imaging
* Does not fulfill PBS requirements for bevacizumab
* Women lactating, pregnant or of child baring potential who are not willing to avoid pregnancy during the study
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Royal North Shore Hospital

OTHER

Sponsor Role lead

Responsible Party

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Alexander Yuile

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Royal North Shore Hospital

Saint Leonards, New South Wales, Australia

Site Status

Countries

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Australia

Central Contacts

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Alexander Yuile

Role: CONTACT

+61 2 94631171

Facility Contacts

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Alexander Yuile

Role: primary

+61 2 94631171

Other Identifiers

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GUAVA

Identifier Type: -

Identifier Source: org_study_id

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