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Glioblastoma MultiformeTYR-GLIONCT06466031

Application of FET-PET in Fusion With MRI in the Treatment of Glioblastoma Multiforme [TYR-GLIO]

A study testing MRI & PET fusion and MRI+T1C in people with Glioblastoma Multiforme, run by Copernicus Memorial Hospital at 1 site in Poland.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Glioblastoma multiforme (GBM WHO IV) is the most common and aggressive primary brain tumor in adults, carrying a poor prognosis with a median survival of 12-16 months. The annual incidence is approximately 5 per 100,000 (roughly 600 cases annually in Poland), predominantly affecting individuals in their prime… Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Glioblastoma Multiforme
What is being tested?
MRI & PET fusion and MRI+T1C
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
189 participants
Where
1 sitePoland
Study dates
8 Dec 2025to 31 Aug 2032
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Single macroscopic tumor focus with the appearance of glioblastoma multiforme on MRI with contrast - contrast-enhancing lesion, completely or with central necrosis, with surrounding edema.
  • No history of cancer in other organs. No suspicious lesions on X-ray of the chest and abdomen (CT with contrast).
  • No clinical suspicion of brain abscess - no meningeal symptoms, signs of neuroinfection, fever, elevated inflammatory parameters.
  • Primary tumor, without neurosurgical, radiotherapy or oncology intervention. Prior tumor biopsy is allowed.
  • Tumor eligible for surgical treatment - craniotomy and tumor resection.
  • Age ≥ 18 years but < 70 years old.
Show all 10Show fewer
  • Quality of life assessment: KPS ≥ 70.
  • Informed patient consent to the study and proposed treatment.
  • No allergy to contrast agents used in PET and MRI.
  • No medical contraindications to neurosurgery - craniotomy and resection.

Who cannot join

  • Multifocal brain tumor.
  • Recurrence of glioblastoma multiforme.
  • Clinical or radiological suspicion of brain metastasis or brain abscess.
  • Postoperative histopathological diagnosis other than WHO grade IV glioblastoma.
  • Medical contraindications to any surgery under general anesthesia.
  • Pregnancy, breastfeeding.
  • Known allergy to gadolinium contrast or radiopharmaceutical tracing agent.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Poland1 site, 1 recruiting
  • Copernicus Memorial Hospital in Łódź, Poland

    Lodz, Łódź Voivodeship, 93-513

    Kamil Krystkiewicz, PhD, +48426895341, kamil.krystkiewicz@gmail.com

    Kamil Krystkiewicz, PhD

    Recruiting

Other trials in Poland

About this study

Official title: Application of FET-PET in Fusion With MRI in the Surgical Treatment and Postoperative Radiotherapy of Glioblastoma Multiforme - a Randomized, Blinded, Prospective Study

Glioblastoma multiforme (GBM WHO IV) is the most common and aggressive primary brain tumor in adults, carrying a poor prognosis with a median survival of 12-16 months. The annual incidence is approximately 5 per 100,000 (roughly 600 cases annually in Poland), predominantly affecting individuals in their prime productive years. The standard of care consists of maximal safe resection followed by the Stupp protocol (60 Gy fractionated radiotherapy and temozolomide chemotherapy).

Routine surgical management relies on contrast-enhanced MRI. Gross total resection (GTR) is defined as the complete removal of the contrast-enhancing lesion. Although GTR improves progression-free survival (PFS) and overall survival (OS), local recurrence at the operative site occurs in up to 51% of patients within a year. This rapid regrowth is driven by glioblastoma stem cells infiltrating the surrounding non-enhancing brain tissue. Consequently, standard contrast-enhanced MRI lacks the sensitivity required to define true tumor boundaries for optimal patient outcomes.

Read more

To overcome this, positron emission tomography (PET-CT) using amino acid tracers like 18F-fluoroethyl-L-tyrosine (18F-FET) offers a promising alternative. Unlike 18-FDG, which is obscured by physiologically high glucose uptake in healthy brain tissue, 18F-FET provides high specificity and sensitivity for glial tumors. Crucially, studies show that MRI contrast enhancement overlaps with only 58% of the hypermetabolic area identified by 18F-FET. While "supramarginal" resections based on FLAIR MRI abnormalities (assumed to contain infiltrating stem cells) improve PFS by roughly 2 months, the FLAIR sequence cannot definitively distinguish active tumor infiltration from standard peritumoral edema.

This proposed experiment carries significant innovative value: it aims to use the fusion of 18F-FET PET and contrast-enhanced MRI to precisely guide both primary surgical resection and postoperative radiotherapy. By redefining the primary target volume to include the area of true biological tumor activity rather than just the MRI-enhancing mass (incorporating it into GTV, CTV, and PTV planning), the procedure directly targets residual glioblastoma stem cells. While PET has been evaluated for radiotherapy planning in recurrent GBM, high-quality data regarding its use for primary surgical planning is lacking. This study aims to fill that crucial gap in the literature.

Being tested
MRI & PET fusion, MRI+T1C
Keywords
Glioblastoma Multiforme, Methionine, Positron-Emission Tomography, Brain neoplasms, Progression-free survival, Dose Fractionation, Radiation, Post-surgical radiotherapy
Medical subject headings
Glioblastoma, Brain Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MRI & PET fusionOther

    MRI+T1C in fusion with FET-PET will be used for tumor resection and/or radiotherapy planning. Resection will be terminated after removal of PET-assigned tumor margin or in case any neuromonitoring-based indications regarding neurological damage occur.

  • MRI+T1COther

    MRI+T1C will be used for tumor resection and radiotherapy planning. Resection will be terminated after removal of contrast-enhancing part regardless of 5-ALA fluorescence or in case any neuromonitoring-based indications regarding neurological damage occur.

Study groups in NCT06466031
Study groupRoleWhat they receive
Resection and radiotherapy according to the MRI & PET fusionExperimentalSurgical treatment and radiotherapy planned based on FET-PET and MRI+T1C fusion.
Receives: Other: MRI & PET fusion
Radiotherapy according to the MRI & PET fusionExperimentalSurgical treatment planned based on MRI+T1C study, radiotherapy planned based on FET-PET and MRI+T1C fusion.
Receives: Other: MRI & PET fusion; Other: MRI+T1C
Resection and radiotherapy according to the MRISham comparatorSurgical treatment and radiotherapy planned based on MRI+T1C.
Receives: Other: MRI+T1C

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Progression-free survival

    Measured: 36 months post surgery

  2. Overall survival

    Measured: 36 months post surgery

Secondary outcomes (5)
  1. Assessment of tumor volume (GTV) in MRI with contrast in relation to the tumor borders in PET-CT

    It will be assessed as the ratio of the treated tumor volume volumetrically based on MRI+T1C and FLAIR examination by software to the tumor volume estimated in a homogeneous way based on PET-CT examination. Both measurements will be verified independently by a neurosurgeon and a nuclear medicine specialist. This value will allow you to estimate how large the differences are treatment planning based on two different modalities - morphological assessment of the tumor and assessment of metabolic activity.

    Measured: 1 day before radiotherapy

  2. Volumetric assessment of the planned radiotherapy volume based on PET-MRI and MRI planning.

    Measured: 1 day before radiotherapy

  3. Long-term survival rate and prognostic factors (longer than 1 year from diagnosis).

    Detailed analysis of factors prognostically favorable for long-term survival, which will allow for better selection of therapeutic options and possible reoperation in this group of patients.

    Measured: 36 months post surgery

  4. Pattern of local recurrence based on postoperative PET-MRI. Assessment of the nature and location of local recurrence based on the postoperative SUV parameter FET-PET and MRI examination.

    The purpose of this analysis is to develop risk factors for recurrence based on postoperative radiological examinations.

    Measured: 36 months post surgery

  5. Assessment of quality of life related (SF-36 questionnaire) to the increase in the volume of the tumor undergoing treatment.

    Increasing the scope surgery and radiotherapy treatment may result in deterioration of the patient's functioning. Therefore, the above factors will be analyzed for correlation the scope of resection and the functioning of patients. The evaluation will be performed by neurosurgeons and a psychologist trained in neuropsychological assessment.

    Measured: 7 days post surgery, 1 day before and after radiotherapy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Jun 2024
  2. Study start8 Dec 2025
  3. Primary completion31 Aug 2030 (estimated)
  4. Study completion31 Aug 2032 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
189 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06466031
Sponsor's protocol ID
2023/ABM/01/00010
Acronym
TYR-GLIO
Status last verified
Apr 2026
First submitted
2 Jun 2024
Last updated
17 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hutterer M, Nowosielski M, Putzer D, Jansen NL, Seiz M, Schocke M, McCoy M, Gobel G, la Fougere C, Virgolini IJ, Trinka E, Jacobs AH, Stockhammer G. [18F]-fluoro-ethyl-L-tyrosine PET: a valuable diagnostic tool in neuro-oncology, but not all that glitters is glioma. Neuro Oncol. 2013 Mar;15(3):341-51. doi: 10.1093/neuonc/nos300. Epub 2013 Jan 17.

    PubMed 23335162
  • Dunet V, Pomoni A, Hottinger A, Nicod-Lalonde M, Prior JO. Performance of 18F-FET versus 18F-FDG-PET for the diagnosis and grading of brain tumors: systematic review and meta-analysis. Neuro Oncol. 2016 Mar;18(3):426-34. doi: 10.1093/neuonc/nov148. Epub 2015 Aug 4.

    PubMed 26243791
  • Robert JA, Leclerc A, Ducloie M, Emery E, Agostini D, Vigne J. Contribution of [18F]FET PET in the Management of Gliomas, from Diagnosis to Follow-Up: A Review. Pharmaceuticals (Basel). 2024 Sep 18;17(9):1228. doi: 10.3390/ph17091228.

    PubMed 39338390
  • Ort J, Hamou HA, Kernbach JM, Hakvoort K, Blume C, Lohmann P, Galldiks N, Heiland DH, Mottaghy FM, Clusmann H, Neuloh G, Langen KJ, Delev D. 18F-FET-PET-guided gross total resection improves overall survival in patients with WHO grade III/IV glioma: moving towards a multimodal imaging-guided resection. J Neurooncol. 2021 Oct;155(1):71-80. doi: 10.1007/s11060-021-03844-1. Epub 2021 Oct 1.

    PubMed 34599479
  • Harat M, Rakowska J, Harat M, Szylberg T, Furtak J, Miechowicz I, Malkowski B. Combining amino acid PET and MRI imaging increases accuracy to define malignant areas in adult glioma. Nat Commun. 2023 Jul 29;14(1):4572. doi: 10.1038/s41467-023-39731-8.

    PubMed 37516762
  • Herholz K, Holzer T, Bauer B, Schroder R, Voges J, Ernestus RI, Mendoza G, Weber-Luxenburger G, Lottgen J, Thiel A, Wienhard K, Heiss WD. 11C-methionine PET for differential diagnosis of low-grade gliomas. Neurology. 1998 May;50(5):1316-22. doi: 10.1212/wnl.50.5.1316.

    PubMed 9595980
  • Kracht LW, Miletic H, Busch S, Jacobs AH, Voges J, Hoevels M, Klein JC, Herholz K, Heiss WD. Delineation of brain tumor extent with [11C]L-methionine positron emission tomography: local comparison with stereotactic histopathology. Clin Cancer Res. 2004 Nov 1;10(21):7163-70. doi: 10.1158/1078-0432.CCR-04-0262.

    PubMed 15534088
  • Singhal T, Narayanan TK, Jain V, Mukherjee J, Mantil J. 11C-L-methionine positron emission tomography in the clinical management of cerebral gliomas. Mol Imaging Biol. 2008 Jan-Feb;10(1):1-18. doi: 10.1007/s11307-007-0115-2. Epub 2007 Oct 24.

    PubMed 17957408
  • Grosu AL, Weber WA, Riedel E, Jeremic B, Nieder C, Franz M, Gumprecht H, Jaeger R, Schwaiger M, Molls M. L-(methyl-11C) methionine positron emission tomography for target delineation in resected high-grade gliomas before radiotherapy. Int J Radiat Oncol Biol Phys. 2005 Sep 1;63(1):64-74. doi: 10.1016/j.ijrobp.2005.01.045.

    PubMed 16111573
  • Galldiks N, Niyazi M, Grosu AL, Kocher M, Langen KJ, Law I, Minniti G, Kim MM, Tsien C, Dhermain F, Soffietti R, Mehta MP, Weller M, Tonn JC. Contribution of PET imaging to radiotherapy planning and monitoring in glioma patients - a report of the PET/RANO group. Neuro Oncol. 2021 Jun 1;23(6):881-893. doi: 10.1093/neuonc/noab013.

    PubMed 33538838
  • Pirotte B, Goldman S, Dewitte O, Massager N, Wikler D, Lefranc F, Ben Taib NO, Rorive S, David P, Brotchi J, Levivier M. Integrated positron emission tomography and magnetic resonance imaging-guided resection of brain tumors: a report of 103 consecutive procedures. J Neurosurg. 2006 Feb;104(2):238-53. doi: 10.3171/jns.2006.104.2.238.

    PubMed 16509498

Questions about this trial

What is this clinical trial studying?

A study testing MRI & PET fusion and MRI+T1C in people with Glioblastoma Multiforme, run by Copernicus Memorial Hospital at 1 site in Poland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 17 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Poland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Kamil Krystkiewicz, PhD (+48426895341, kamil.krystkiewicz@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Progression-free survival (time frame: 36 months post surgery). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06466031, which also lists 11 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Apr 2026.

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