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Study identifier: NCT07159607 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Amino Acid PET-based Response Assessment in IDH-mutant Gliomas (APPEAR)

Condition: IDH-mutant Glioma (Oligodendroglioma, Astrocytoma)  ·  Sponsor: LMU Klinikum

PhaseN/A
Planned participants100
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

Background: The radiological follow-up of diffuse gliomas is challenged by the difficult distinction of true progression from treatment-related changes. To this end, the Response Assessment in Neuro-Oncology (RANO) Working Group has issued specific recommendation for the standardized evaluation of magnetic resonance imaging (MRI). In addition, positron emission tomography (PET) using radiolabeled amino acids allows for the delineation of metabolically active tumor regions in brain tumors, and guidelines for PET-based response assessment have been recently proposed (PET RANO 1.0). However, well-annotated data on longitudinal PET alterations before and during treatment and follow-up are missing in isocitrate dehydrogenase (IDH)-mutant gliomas, particularly as tumor entities defined by IDH mutations have been established only recently and data on PET imaging mainly rely on previous brain tumor classification frameworks. Aims: This bicentric, prospective, observational study aims to collect data on imaging-based disease monitoring in patients with IDH-mutant gliomas. Specifically, this study aims to investigate longitudinal changes of amino acid PET tracer uptake during treatment in IDH-mutant gliomas and to evaluate the correlation between amino acid PET uptake at baseline and response to postoperative standard of care treatment. Patient cohort/methods: Adult (age ≥ 18 years) patients diagnosed and/or treated at the Medical University of Vienna (Vienna, Austria) or the LMU Hos…

This description comes directly from the study's public registry record.

Talk to the study team

Nathalie L Albert, Prof. Dr. med  ·  +4989440074646  ·  Nathalie.Albert@med-uni-muenchen.de

Matthias Preusser, Prof. Dr. med.  ·  +43-1-40400-44450  ·  matthias.preusser@meduniwien.ac.at

Always discuss trial participation with your own doctor first.

Locations (2)

Medical University of ViennaVienna, AustriaRecruiting
LMU HospitalMunich, Bavaria, GermanyRecruiting

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Source record: clinicaltrials.gov/study/NCT07159607