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OncoMatch/Clinical Trials/NCT06172595

FET PET in Differentiating Tumour Progression From Pseudoprogression in High Grade Glioma

Is NCT06172595 recruiting? Yes, currently enrolling (May 2026). This Phase 2 trial studies non-drug interventions for glioma, malignant.

Phase 2RecruitingSingapore General HospitalNCT06172595Data as of May 2026

The goal of this clinical trial is to evaluate the performance characteristics of O-(2-\[18F\]fluoroethyl)-L-tyrosine (FET) PET in differentiating pseudoprogression from tumour progression in patients with equivocal conventional imaging and determine the sensitivity and specificity of \[18F\]FET-PET in delineating disease. The main question\[s\] it aims to answer are: * whether 18F-FET-PET will demonstrate high diagnostic accuracy to detect true tumour progression * whether we can optimise the threshold cut-offs for TBRmax and other relevant parameters in discriminating pseudoprogression and disease progression Participants will undergo a limited 18F-FET PET/CT of the brain in SGH.

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Extracted eligibility criteria

Cancer type

Glioblastoma

Biomarker criteria

Required: IDH1 wild-type

Required: IDH2 wild-type

Disease stage

Required: Stage WHO GRADE III, WHO GRADE IV (WHO)

Excluded: Stage WHO GRADE I, WHO GRADE II

malignant glioma (defined as WHO grade III or IV); Low-grade gliomas (histology grade 1 or 2 by WHO classification) [excluded]

Prior therapy

Must have received: radiation therapy

previous RT to tumour

Cannot have received: vascular endothelial growth factor (VEGF) targeting agents or anti-angiogenic treatments (bevacizumab)

Previous bevacizumab or other vascular endothelial growth factor (VEGF) targeting agents or anti-angiogenic treatments

Structured fields extracted by AI. May contain errors — verify against the official protocol.

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