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Begyndende stråling straks med gammatile ved GBM excision versus standard for pleje (BRIDGES)

5. november 2026 opdateret af: GT Medical Technologies, Inc.

Randomiseret undersøgelse af resektion og Gammatile® efterfulgt af samtidig ekstern strålingsterapi (EBRT) og Temozolomid (TMZ) og adjuvans TMZ versus standard for pleje i nyligt diagnosticeret glioblastoma (GBM)

This is a Phase 3 prospective, randomized, superiority, open-label, multi-site study. The overview of this study is as follows:

  • A Screening/Baseline Period of 21 days. During this time, patients will be randomized into a 1:2 allocation of Arm A:Arm B.
  • A Perioperative/Operative Phase where patients will undergo tumor resection (Arm A) or tumor resection plus GammaTile implantation (Arm B).
  • An EBRT Prior to Start Period. This occurs within 10 business days prior to EBRT and Concurrent TMZ Phase.
  • An EBRT and Concurrent TMZ Phase, which will begin 30 ±10 days post-surgery. EBRT (30 fractions) and TMZ will be administered up to 5 days a week for 6 weeks in Arm A, and EBRT (20 fractions) and TMZ will be administered for up to 5 days a week for 4 weeks in Arm B. TMZ will be administered at a dose of 75 mg/m2/day orally for each Arm.
  • An Adjuvant TMZ Phase, which begins 28 ±7 days following the EBRT and Concurrent TMZ Phase, and is comprised of six 28-day cycles. TMZ (150-200 mg/m2/day orally) will be administered for the first 5 days of each 28-day cycle for each Arm. Tumor treating fields are allowed but are not mandated during this phase. Up to 6 additional cycles (for a total of 12) can be completed at the discretion of the Investigator.
  • An Early Discontinuation/Follow-Up Phase will occur 28 ±7 days after completion of Cycle 6 of the Adjuvant TMZ Phase, regardless of the total number of cycles completed or any delays in cycle start. If fewer than six cycles are completed, the first follow-up assessment will occur 28 ±7 days after the last administered dose of adjuvant TMZ. If patient has a qualifying event requiring entrance to Early Discontinuation Phase, the first follow-up assessment will occur as soon as feasible, but within 28 days.

For any unscheduled visits, data collected should be documented in the case report form (CRF) and must include, but are not limited to, safety evaluations, survival status, and disease status.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

766

Fase

  • Fase 3

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • Arizona
      • Scottsdale, Arizona, Forenede Stater, 85251
        • Rekruttering
        • HonorHealth Scottsdale Osborn Medical Center
        • Ledende efterforsker:
          • John Wanebo, MD
        • Kontakt:
    • California
      • Los Angeles, California, Forenede Stater, 90048
        • Rekruttering
        • Cedars Sinai Medical Center
        • Kontakt:
          • Jeremy D. Rudnick, MD
        • Ledende efterforsker:
          • Jeremy D. Rudnick, MD
      • Los Angeles, California, Forenede Stater, 90033
        • Rekruttering
        • Keck Medicine of USC
        • Ledende efterforsker:
          • Eric Chang, MD
        • Kontakt:
      • San Francisco, California, Forenede Stater, 94115
        • Rekruttering
        • Sutter Health
        • Kontakt:
          • Patricia Seid, MD
        • Ledende efterforsker:
          • Patricia Seid, MD
      • San Francisco, California, Forenede Stater, 94143
        • Rekruttering
        • University of California San Fransico
        • Kontakt:
          • Jacob Young, MD
        • Ledende efterforsker:
          • Jacob Young, MD
    • Colorado
      • Littleton, Colorado, Forenede Stater, 80122
        • Rekruttering
        • Advent Health - Colorado
        • Kontakt:
          • Darlene Bugoci, MD
        • Ledende efterforsker:
          • Darlene Bugoci, MD
    • Florida
      • Orlando, Florida, Forenede Stater, 32804
    • Georgia
      • Atlanta, Georgia, Forenede Stater, 30322
        • Rekruttering
        • Emory Winship Cancer Institute
        • Kontakt:
        • Ledende efterforsker:
          • Kimberly B. Hoang, MD
    • Illinois
      • Chicago, Illinois, Forenede Stater, 60607
        • Rekruttering
        • Rush University Medical Center
        • Ledende efterforsker:
          • Ken Tatebe, MD, PhD
        • Kontakt:
          • Ken Tatebe, MD, PhD
    • Kentucky
      • Louisville, Kentucky, Forenede Stater, 40241
        • Rekruttering
        • Norton Cancer Institute - Brownsboro
        • Ledende efterforsker:
          • Parag Sevak, MD
        • Kontakt:
          • Parag Sevak, MD
    • Maryland
      • Baltimore, Maryland, Forenede Stater, 21287
        • Rekruttering
        • Johns Hopkins University
        • Kontakt:
        • Ledende efterforsker:
          • Jordina Rincon-Torroella, MD
    • Missouri
      • Columbia, Missouri, Forenede Stater, 65201
        • Rekruttering
        • University of Missouri
        • Kontakt:
          • Gregory Biedermann, MD
        • Ledende efterforsker:
          • Gregory B. Biedermann, MD
    • New Hampshire
      • Lebanon, New Hampshire, Forenede Stater, 03766
    • New Jersey
      • Neptune City, New Jersey, Forenede Stater, 07753
        • Rekruttering
        • Jersey Shore University Medical Center | Hackensack
        • Ledende efterforsker:
          • Nitesh Patel, MD
        • Kontakt:
    • New York
      • Valhalla, New York, Forenede Stater, 10595
        • Rekruttering
        • Westchester Medical Center
        • Ledende efterforsker:
          • Simon Hanft, MD
        • Kontakt:
        • Underforsker:
          • Rohil Shekher, MD
    • North Carolina
      • Greenville, North Carolina, Forenede Stater, 27834
        • Rekruttering
        • East Carolina University
        • Ledende efterforsker:
          • K. Stuart Lee, MD
        • Kontakt:
    • Ohio
      • Columbus, Ohio, Forenede Stater, 43210
        • Rekruttering
        • The Ohio State University
        • Ledende efterforsker:
          • James B Elder, MD
        • Kontakt:
          • James B Elder, MD
    • Pennsylvania
      • Pittsburgh, Pennsylvania, Forenede Stater, 15212
        • Rekruttering
        • Allegheny Health Network
        • Ledende efterforsker:
          • Matthew Shepard, MD
        • Kontakt:
    • Rhode Island
      • Providence, Rhode Island, Forenede Stater, 02903
        • Rekruttering
        • Brown University Health
        • Ledende efterforsker:
          • Clark Chen, MD, PhD
        • Kontakt:
    • South Carolina
      • Charleston, South Carolina, Forenede Stater, 29425
        • Rekruttering
        • Medical University of South Carolina
        • Ledende efterforsker:
          • Charlotte Rivers, MD
        • Kontakt:
    • Texas
      • Houston, Texas, Forenede Stater, 77030
    • Virginia
      • Fairfax, Virginia, Forenede Stater, 22031
        • Rekruttering
        • Inova Schar Cancer Institute
        • Kontakt:
          • Kevin Choe, MD, PhD
        • Ledende efterforsker:
          • Kevin Choe, MD, PhD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Major Criteria Includes the Following:

Inclusion Criteria

  • Patients must be ≥18 years of age.

  • Have radiographic suspicion of newly diagnosed glioblastoma (GBM).

    o If final pathology reports IDH mutant glioma, then the patients found to have an IDH mutation will be followed for safety and QoL measures but will not be included in the primary and secondary comparative survival and efficacy analyses.

  • Are medically and surgically appropriate for resection.

  • Have an estimated Karnofsky Performance Scale (KPS) score of ≥70.

  • Are able to receive standard of care treatment.

Exclusion Criteria

  • A previous biopsy diagnosis other than IDH wild-type GBM.
  • Have contraindications to TMZ, magnetic resonance imaging, gadolinium, or non-contrast computed tomography.
  • Have multi-focal enhancing tumors that cannot be encompassed in one operative field.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Maximal safe resection followed by EBRT with concurrent TMZ followed by adjuvant TMZ (Arm A)

All patients will undergo tumor resection. Start TMZ (75 mg/m2/day orally) on the first day of EBRT and will be administered concurrently with EBRT, up to 5 days per week, for the 30-fraction course of EBRT for 6 weeks within 30±10 days post-surgery. After EBRT and concurrent TMZ phase, the first cycle begins 28 ±7 days following the last day of the EBRT and Concurrent TMZ Phase. Adjuvant TMZ includes 5 days of TMZ treatment at the start of each 28-day cycle. Additional cycles (up to a maximum of 12), which may be given at the discretion of the Investigator, will be documented, and performed in the same manner as done in the first 6 cycles.

External beam radiation therapy (EBRT) is a type of radiation therapy that is standard of care. EBRT uses a machine outside the body to deliver high-energy beams of radiation to cancerous areas within the body

Andre navne:
  • EBRT

TMZ (Chemotherapy) is used as a first-line treatment, often in combination with radiation therapy after surgical resection of the tumor

Andre navne:
  • TMZ
Eksperimentel: Maximal safe resection + GammaTile followed by EBRT with concurrent TMZ then adjuvant TMZ (Arm B)

All patients will undergo tumor resection + GammaTile implantation. Start TMZ (75 mg/m2/day orally) on the first day of EBRT and will be administered concurrently with EBRT, up to 5 days per week, for the 20-fraction course of EBRT for 4 weeks within 30±10 days post-surgery. After EBRT and concurrent TMZ phase, the first cycle begins 28 ±7 days following the last day of the EBRT and Concurrent TMZ Phase. Adjuvant TMZ includes 5 days of TMZ treatment at the start of each 28-day cycle. Additional cycles (up to a maximum of 12), which may be given at the discretion of the Investigator, will be documented, and performed in the same manner as done in the first 6 cycles.

External beam radiation therapy (EBRT) is a type of radiation therapy that is standard of care. EBRT uses a machine outside the body to deliver high-energy beams of radiation to cancerous areas within the body

Andre navne:
  • EBRT

TMZ (Chemotherapy) is used as a first-line treatment, often in combination with radiation therapy after surgical resection of the tumor

Andre navne:
  • TMZ

GammaTiles are a U.S. FDA-cleared, surgically targeted radiation therapy for patients with certain brain tumors. GammaTile consists of bioresorbable collagen tiles embedded with Cesium-131 (Cs-131) radioactive seeds

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Overall Survival
Tidsramme: Days from surgery to death.

The primary endpoint of the study is OS, defined as the day from surgery to death. Patients who are still alive (or lost to follow-up) at the time of data analysis will be censored at the last time point they were known to be alive.

Days from surgery to death.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Progression Free Survival
Tidsramme: Days from surgery to death or disease progression.

To compare PFS, defined as days from surgery to death or disease progression, between the 2 study arms based on the most current RANO Resect Group criteria;

Days from surgery to death or disease progression.
Time to next unplanned treatment
Tidsramme: Time to next unplanned treatment.

To compare the time to next unplanned treatment per study arm

Time to next unplanned treatment.
Performance Status
Tidsramme: 24 months.

To assess the performance status up to 24 months

24 months.
Safety Assessment
Tidsramme: Study duration.

To assess the nature, severity, and frequency of AEs between the 2 study arms based on the most current CTCAE criteria

Study duration.
Quality of Life Assessments
Tidsramme: COST-Score duration of study; FACT-Br up to 12 months after randomization.

Financial toxicity scale (Comprehensive Score for Financial Toxicity [COST]-score) and functional assessment of cancer therapy - brain (FACT-Br) up to 12 months after randomization.

COST-Score duration of study; FACT-Br up to 12 months after randomization.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

10. december 2025

Primær færdiggørelse (Anslået)

1. december 2031

Studieafslutning (Anslået)

1. december 2031

Datoer for studieregistrering

Først indsendt

10. september 2025

Først indsendt, der opfyldte QC-kriterier

19. september 2025

Først opslået (Faktiske)

26. september 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

9. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • GTM-105

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ja

produkt fremstillet i og eksporteret fra U.S.A.

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .