Characterization of the Blood-Brain Barrier in High-Grade Glioma Through Immunohistochemical, Transcriptional, Fluorescein and Radiological Analyses
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
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.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Professor Donncha O'Brien, MB, BCh, BAO, MCh, FRCSI (SN)
- Telefonnummer: 018093000
- E-mail: cancerdirectorate@beaumont.ie
Studiesteder
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Beaumont, Irland, D09
- Rekruttering
- Beaumont RCSI Cancer Centre
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Kontakt:
- Aisling Hegarty, RGN, BSc, MSc, PhD
- Telefonnummer: 017977800
- E-mail: Aislinghegarty@rcsi.ie
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Diagnostisk
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
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Eksperimentel: 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.
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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.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Serum Biomarkers of Blood-Brain Barrier Disruption and Neuronal Injury
Tidsramme: 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
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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.
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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
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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MRI Based Measures of Blood-Brain Barrier Integrity
Tidsramme: 4 weeks after surgery
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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.
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4 weeks after surgery
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Immunohistochemical Characterisation of Blood-Brain Barrier Disruption
Tidsramme: During surgical resection (single assessment)
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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.
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During surgical resection (single assessment)
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Transcriptional Characterisation of Blood-Brain Barrier Disruption
Tidsramme: During surgical resection (single assessment)
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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.
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During surgical resection (single assessment)
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Neurocognitive Function Assessed by RBANS
Tidsramme: Baseline (within 7 days before surgery), 4 weeks after surgery, and 4 weeks after completion of radiotherapy
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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.
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Baseline (within 7 days before surgery), 4 weeks after surgery, and 4 weeks after completion of radiotherapy
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 22-54
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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