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Brain Connectivity Changes in Glioma Patients During Treatment (GliRecon)

11. august 2026 oppdatert av: Michael Sonnberger, Johannes Kepler University of Linz

Functional Reorganization and Connectivity in Glioma Patients During the Therapeutic Trajectory

The goal of this observational study is to better understand how the brain changes during the treatment of glioma. In particular, the study looks at changes in important brain areas that are responsible for functions such as movement, language, or sensation, as well as the nerve fiber pathways that connect these areas.

The main question this study aims to answer is:

How do important brain areas and their connections adapt and reorganize over the course of glioma treatment?

Patients with glioma will undergo repeated brain imaging examinations as part of their regular medical care. These images will be analyzed over time to observe changes in brain activity and structure during different stages of therapy.

By studying these changes, researchers hope to gain new insights into the brain's ability to adapt (neuroplasticity) throughout the entire course of glioma treatment.

Studieoversikt

Status

Rekruttering

Forhold

Studietype

Observasjonsmessig

Registrering (Antatt)

20

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

  • Østerrike
    • Upper Austria
      • Linz, Upper Austria, Østerrike, 4020
        • Rekruttering
        • Kepler University Hospital

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Adults with diffuse gliomas (WHO grade 2-4) undergoing multimodal treatment and eligible for functional MRI and neurocognitive assessment.

Beskrivelse

Inclusion Criteria:

  • Patients with diffuse gliomas (WHO grade 2-4).
  • Age >18 years and <65 years.
  • Written participant information and informed consent provided and signed.
  • Signed informed consent for functional magnetic resonance imaging (fMRI).

Exclusion Criteria:

  • Age <18 years or >65 years.
  • Pregnancy.

  • Contraindications to MRI, including but not limited to:

    • Active medical implants (e.g., pain pump, defibrillator, cardiac pacemaker),
    • Orthodontic braces,
    • Metallic tattoos,
    • Non-removable piercings,
    • Known metallic foreign bodies,
    • Claustrophobia.
  • Cerebral metastases from secondary (non-primary) tumors.
  • Absence of baseline BOLD functional MRI and/or baseline neurocognitive assessment.
  • Failure to provide written participant information and informed consent.
  • Karnofsky Performance Status (KPS) <60, unless feasibility of clinical-psychological testing and BOLD fMRI is confirmed by the investigator in consultation with clinical psychology, radiology staff, and the patient.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Treatment-related changes in BOLD signal and diffusion tensor imaging (DTI) outcomes across different stages of treatment.
Tidsramme: Day 0 (pre-neurosurgery baseline), Day 28 (post-surgery/pre-radiotherapy), and Day 126 to Day 140 (post-treatment)
This outcome assesses changes from baseline in neurofunctional activation measured by blood-oxygen-level-dependent (BOLD) functional MRI and in brain microstructural properties measured by diffusion tensor imaging (DTI) parameters (e.g., fractional anisotropy and mean diffusivity) at predefined time points during treatment. Not all participants will undergo radiotherapy as part of standard clinical care; therefore, the timing of the final assessment corresponds to the respective treatment stage.
Day 0 (pre-neurosurgery baseline), Day 28 (post-surgery/pre-radiotherapy), and Day 126 to Day 140 (post-treatment)
Treatment-related changes in neurofunctional activation patterns and cerebral organizational and reorganization processes assessed by functional MRI and diffusion tensor imaging (DTI) at 1-year follow-up from treatment initiation.
Tidsramme: Day 0 (pre-neurosurgery baseline) and Day 365 (one-year follow-up)
This outcome assesses changes from baseline in neurofunctional activation measured by blood-oxygen-level-dependent (BOLD) functional MRI and in brain microstructural properties measured by diffusion tensor imaging (DTI) parameters (e.g., fractional anisotropy and mean diffusivity) at the one-year follow-up compared with measurements obtained at the start of treatment.
Day 0 (pre-neurosurgery baseline) and Day 365 (one-year follow-up)

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
BOLD functional MRI signal change
Tidsramme: Day 0 (pre-neurosurgery baseline), Day 126-140 (post-treatment), Day 365 (one-year follow-up)
Brain activation measured as blood oxygen level-dependent (BOLD) signal change using functional MRI during task-based acquisition.
Day 0 (pre-neurosurgery baseline), Day 126-140 (post-treatment), Day 365 (one-year follow-up)
Fractional anisotropy (DTI)
Tidsramme: Day 0 (pre-neurosurgery baseline), Day 126-140 (post-treatment), Day 365 (one-year follow-up)
Fractional anisotropy values derived from diffusion tensor imaging (DTI) assessed during treatment and follow-up.
Day 0 (pre-neurosurgery baseline), Day 126-140 (post-treatment), Day 365 (one-year follow-up)
Mean diffusivity (DTI)
Tidsramme: Day 0, Day 126-140, Day 365
Mean diffusivity values derived from diffusion tensor imaging (DTI).
Day 0, Day 126-140, Day 365
Cognitive performance score
Tidsramme: 0, Day 126-140, Day 365
Cognitive performance assessed using standardized neuropsychological test scores.
0, Day 126-140, Day 365
Patient-reported quality of life score
Tidsramme: Day 0, Day 126-140, Day 365
Patient-reported quality of life measured using validated questionnaires.
Day 0, Day 126-140, Day 365

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Johannes Kepler University of Linz

Samarbeidspartnere

Clinical Research Institute for Neurosciences, JKU Linz, Austria
Department of Neurosurgery, Kepler University Hospital, Johannes Kepler University Linz
Institute of Neuroradiology, Kepler University Hospital, Johannes Kepler University, Linz
Department of Radiation Oncology, Ordensklinikum Linz, Barmherzige Schwestern, Linz

Etterforskere

  • Studiestol: Raimund Kleiser, PD Dr., Neuroimaging Sciences and Support Center ,Clinical Institute for Neurosciences, Institute of Neuroradiology, Kepler Unisversity Hospital Linz, Johannes Kepler University
  • Studiestol: Andreas Gruber, Full Professor, Head of Clinical Institute for Neurosciences, Head of the Departmend of Neurosurgery, Kepler Unisversity Hospital Linz, Johannes Kepler University
  • Studiestol: Hans Geinitz, Professor, Head of Department of Radiation Oncology, Clinical Institute for Neurosciences
  • Hovedetterforsker: Michael Sonnberger, MD, Head of Institute of Neuroradiology, Kepler University Hospital Linz, Johannes Kepler University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. mai 2026

Primær fullføring (Antatt)

1. september 2029

Studiet fullført (Antatt)

1. desember 2029

Datoer for studieregistrering

Først innsendt

8. mai 2026

Først innsendt som oppfylte QC-kriteriene

28. mai 2026

Først lagt ut (Faktiske)

29. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

13. august 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

11. august 2026

Sist bekreftet

1. august 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • 1419/2025

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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