Evaluating a new PET scan method for diagnosing low-grade gliomas

Evaluation of Diagnostic Performances of 18F-FDOPA PET KInetics as Biomarkers for the Improvement of Care of MRI Non-contrast Enhanced Gliomas

PHASE3 · Central Hospital, Nancy, France · NCT05512403

This study is testing a new type of PET scan to see if it can help doctors better identify aggressive low-grade brain tumors in patients who may not show clear signs on regular MRI scans.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment88 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorCentral Hospital, Nancy, France (other)
Drugs / interventionschemotherapy
Locations1 site (Vandœuvre-lès-Nancy)
Trial IDNCT05512403 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the effectiveness of 18F-FDOPA PET kinetic parameters as diagnostic biomarkers for identifying aggressive low-grade gliomas (LGGs) that do not show contrast on MRI. The study aims to enhance patient care by providing a non-invasive method to distinguish between aggressive and non-aggressive forms of LGGs, which is crucial for timely treatment decisions. Participants will undergo PET/CT scans to assess the diagnostic performance of this imaging technique in a cohort of patients with suspected LGGs. The trial is designed to address the current lack of standardized management for these brain lesions.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 75 with a unifocal brain tumor suspected to be a low-grade glioma and no contrast enhancement on MRI.

Not a fit: Patients with multifocal brain lesions or contraindications to 18F-FDOPA PET will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic accuracy and timely treatment for patients with low-grade gliomas.

How similar studies have performed: While the use of PET imaging in glioma diagnosis is promising, this specific approach using 18F-FDOPA PET kinetics is novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age between 18 and 75 years old
* WHO general condition ≤2
* Identification of a unifocal brain tumour at the initial diagnosis with no contrast in the MRI and suspected to be a LGG, with biopsy/surgery envisaged within 6 months of the PET scan
* MRI performed a maximum of 3 weeks before inclusion and comprising the conventional morphological sequences (T1, T1 sequences with injection of contrast agent and T2 FLAIR).
* Subject affiliated to or beneficiary of a social security plan
* Subject having received complete information on the organisation of the research and having signed the informed consent form.

Exclusion Criteria:

* Multifocal brain lesions
* Contraindication to 18F-FDOPA PET
* Pregnant, parturient women or nursing mothers under Article L1121-5
* Women of childbearing age who do not have effective contraception under Article L1121-5
* Monitoring not possible
* Persons deprived of their liberty by a judicial or administrative decision under Article 1121-8, persons undergoing psychiatric treatment under Articles L. 3212-1 and L. 3213-1.
* Patients cannot simultaneously participate in an interventional research trial for the duration of the KING study

Where this trial is running

Vandœuvre-lès-Nancy

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Glioma

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.