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Characterization of the Blood-Brain Barrier in High-Grade Glioma Through Immunohistochemical, Transcriptional, Fluorescein and Radiological Analyses

25. Juli 2026 aktualisiert von: Patrick Morris
This prospective study aims to characterize blood brain barrier (BBB) disruption in patients with newly diagnosed glioblastoma multiforme undergoing surgical resection. The study integrates advanced MRI, circulating BBB biomarkers, neurocognitive assessment, and molecular analysis of tumor tissue to investigate relationships between BBB integrity, tumor biology, and neurological function. Participants will undergo serial assessments before surgery, after surgery, and following radiotherapy. Tumor tissue collected during standard-of-care resection will undergo immunohistochemical and transcriptional

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Glioblastoma is characterized by disruption of the blood-brain barrier, which may influence tumor progression, neurological dysfunction, treatment delivery, and clinical outcomes. This study seeks to comprehensively characterize BBB integrity using multimodal approaches.

Participants with newly diagnosed GBM selected for surgical resection will undergo:

  • Clinical and demographic data collection.
  • Neurocognitive assessment using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) and Reading the Mind in the Eyes Test (RMET).
  • High-resolution 3-Tesla MRI with and without gadolinium contrast, including structural and functional imaging sequences.
  • Blood sampling for measurement of biomarkers associated with BBB disruption and neuronal injury, including S100β, GFAP, UCHL1, amyloid beta, phosphorylated tau, and neuron-specific enolase.
  • Collection of tumor tissue during routine surgical resection for immunohistochemical and transcriptional analyses.

Serial evaluations will be performed preoperatively, postoperatively, at 72 hours, at 4 weeks, and 4 weeks following completion of radiotherapy, according to the assessment schedule.

Studientyp

Interventionell

Einschreibung (Geschätzt)

100

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

      • Beaumont, Irland, D09
        • Rekrutierung
        • Beaumont RCSI Cancer Centre
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • Adult patients aged 18 years or older.
  • Newly diagnosed glioblastoma.
  • Selected for surgical tumor resection.
  • Able and willing to provide written informed consent.
  • Able to undergo study assessments and follow-up procedures.

Exclusion Criteria:

  • Contraindication to magnetic resonance imaging.
  • Confusion, delirium, or altered state of consciousness that interferes with the ability to provide informed consent.
  • Any condition that, in the opinion of the investigator, would prevent completion of study procedures or compromise participant safety.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Diagnose
  • Zuteilung: N / A
  • Interventionsmodell: Einzelgruppenzuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Blood Brain Barrier Characterisation Cohort
Participants with newly diagnosed glioblastoma will undergo a standardized Phase 2 multimodal assessment program designed to characterize blood-brain barrier integrity. Study interventions include serial advanced contrast-enhanced MRI, blood biomarker sampling, neurocognitive assessments, and molecular analysis of tumor tissue obtained during standard of care surgical resection. Assessments will be performed longitudinally at predefined time points before surgery, after surgery, at 72 hours, at 4 weeks, and following completion of radiotherapy to evaluate changes in blood-brain barrier function and their association with clinical, radiological, and molecular outcomes.
A standardised multimodal diagnostic assessment designed to characterize blood brain barrier integrity in patients with newly diagnosed glioblastoma. The intervention includes advanced contrast enhanced MRI, serial blood sampling for measurement of blood-brain barrier and neuronal injury biomarkers (including S100β, GFAP, UCHL1, amyloid beta, phosphorylated tau, and neuron-specific enolase), neurocognitive assessments, and immunohistochemical and transcriptional analyses of tumor tissue obtained during standard-of-care surgical resection. Assessments are performed longitudinally before surgery, after surgery, at 72 hours, at 4 weeks, and following completion of radiotherapy.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Serum Biomarkers of Blood-Brain Barrier Disruption and Neuronal Injury
Zeitfenster: Baseline (within 7 days before surgery), intraoperative, within 24 hours after surgery, 72 hours after surgery, 4 weeks after surgery, and 4 weeks after completion of radiotherapy
Serial measurement of serum biomarkers associated with blood-brain barrier disruption and neuronal injury, including S100β, GFAP, UCHL1, amyloid beta, phosphorylated tau, and neuron-specific enolase. Biomarker concentrations will be assessed longitudinally to characterize changes in blood-brain barrier integrity in patients with newly diagnosed glioblastoma undergoing surgical resection and radiotherapy.
Baseline (within 7 days before surgery), intraoperative, within 24 hours after surgery, 72 hours after surgery, 4 weeks after surgery, and 4 weeks after completion of radiotherapy

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
MRI Based Measures of Blood-Brain Barrier Integrity
Zeitfenster: 4 weeks after surgery
Assessment of blood-brain barrier disruption using contrast-enhanced 3-Tesla MRI, including quantitative and qualitative radiological measures of tumour enhancement and permeability. Imaging findings will be evaluated longitudinally and correlated with circulating biomarkers and clinical outcomes.
4 weeks after surgery
Immunohistochemical Characterisation of Blood-Brain Barrier Disruption
Zeitfenster: During surgical resection (single assessment)
Expression of blood-brain barrier-associated proteins within resected glioblastoma tissue assessed by immunohistochemical analysis. Findings will be used to characterize blood-brain barrier integrity and correlated with circulating biomarker and imaging measures.
During surgical resection (single assessment)
Transcriptional Characterisation of Blood-Brain Barrier Disruption
Zeitfenster: During surgical resection (single assessment)
Gene expression profiling of resected glioblastoma tissue to identify transcriptional signatures associated with blood-brain barrier disruption and tumour biology. Results will be correlated with blood biomarker and imaging findings.
During surgical resection (single assessment)
Neurocognitive Function Assessed by RBANS
Zeitfenster: Baseline (within 7 days before surgery), 4 weeks after surgery, and 4 weeks after completion of radiotherapy
Neurocognitive performance measured using the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). Changes in cognitive function will be examined in relation to blood-brain barrier integrity and treatment.
Baseline (within 7 days before surgery), 4 weeks after surgery, and 4 weeks after completion of radiotherapy

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

1. März 2022

Primärer Abschluss (Geschätzt)

31. Dezember 2029

Studienabschluss (Geschätzt)

31. Dezember 2035

Studienanmeldedaten

Zuerst eingereicht

22. Juli 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

25. Juli 2026

Zuerst gepostet (Tatsächlich)

28. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

28. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

25. Juli 2026

Zuletzt verifiziert

1. Juli 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 22-54

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

UNENTSCHIEDEN

Beschreibung des IPD-Plans

De-identified individual participant data underlying the results reported in publications arising from this study may be shared with qualified researchers upon reasonable request, subject to approval by the study investigators, institutional policies, ethical approvals, and applicable data protection regulations. Data sharing will include relevant clinical, imaging, biomarker, and neurocognitive datasets necessary to support replication of study findings.

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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