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Undersøgelse af Silevertinib med Temozolomide til behandling af ny diagnosticeret GBM med unmetyleret MGMT og EGFRvIII

30. oktober 2026 opdateret af: Black Diamond Therapeutics, Inc.

En fase 2 randomiseret, multicenter undersøgelse for at evaluere effektiviteten og sikkerheden af Silevertinib, en oral EGFR-hæmmer, i kombination med Temozolomid hos patienter med nyopdaget glioblastom med unmetyleret MGMT-promotor og EGFRvIII

The purpose of this study is to see if combining silevertinib with temozolomide after surgery and radiotherapy helps treat newly diagnosed glioblastoma (GBM) better than using temozolomide alone in the maintenance setting.

Specifically, this study is being done to find answers to the following questions:

  • How much of the study drugs (silevertinib combined with temozolomide) should be given to participants with GBM?
  • What are the side effects participants have when taking the study drug (silevertinib combined with temozolomide)?
  • Can the study drug (silevertinib combined with temozolomide) help participants with GBM live longer without disease progression compared to treatment with temozolomide alone?

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Silevertinib was designed to block a growth signal important to some cancers where tumors grow because of changes in a protein called epidermal growth factor receptor (EGFR). These changes are called gene amplifications, mutations, or alterations and are found in tumors. Temozolomide is a drug that fights cancer cells by damaging DNA (the genetic material of cells), which could cause the tumor cells to die. It is the standard treatment for adults with certain types of newly diagnosed brain cancer, like GBM. It is given together with radiotherapy and sometimes afterward as maintenance therapy.

This study has 2 parts. To be eligible for the study, participants must have received a diagnosis of GBM, had surgery to remove or reduce the size of the tumor, and received adjuvant radiation therapy and temozolomide. No other prior treatments for GBM are allowed.

In Part 1 (called the Safety Lead-in), participants will receive silevertinib combined with temozolomide to determine if the combination is safe and to find the best dose. Approximately 12 participants are expected to enroll in Part 1 of the study.

In Part 2, all participants will be randomized to one of two different treatment groups:

  • Group 1: Silevertinib + temozolomide
  • Group 2: Temozolomide only

Approximately 150 participants are expected to be randomized in Part 2 of the study.

In both Part 1 and Part 2, the study treatment will be given in "cycles". Each cycle will be 28 days. After a cycle ends, the next cycle will immediately begin the next day. Both silevertinib and temozolomide will be taken orally. Silevertinib is taken daily until disease progression and temozolomide is taken for the first 5 days of each cycle (up to 6 cycles).

If participants are found to be eligible for the study and enrolled (in Part 1) or randomized (in Part 2), participants will:

  • Take the study drug as directed
  • Return for frequent clinic visits to monitor overall health and status of GBM
  • Undergo imaging and other laboratory tests to determine status of GBM
  • Complete a paper diary at home to record the date and time(s) that the study drug is taken

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

162

Fase

  • Fase 2

Kontakter og lokationer

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

Studiekontakt

Studiesteder

    • Alabama
      • Birmingham, Alabama, Forenede Stater, 35233
        • Rekruttering
        • University of Alabama at Birmingham O'Neal Comprehensive Cancer Center
        • Kontakt:
    • Arkansas
      • Springdale, Arkansas, Forenede Stater, 72762
        • Rekruttering
        • Highlands Oncology Group
        • Kontakt:
    • California
      • La Jolla, California, Forenede Stater, 92037-0845
        • Rekruttering
        • UCSD Moores Cancer Center
        • Kontakt:
      • Los Angeles, California, Forenede Stater, 90048
        • Rekruttering
        • Cedars-Sinai Medical Center
        • Kontakt:
      • Orange, California, Forenede Stater, 92868
        • Rekruttering
        • UC Irvine Health
        • Kontakt:
      • Palo Alto, California, Forenede Stater, 94304
    • Connecticut
      • New Haven, Connecticut, Forenede Stater, 06510
        • Rekruttering
        • Yale Cancer Center
        • Kontakt:
    • District of Columbia
      • Washington D.C., District of Columbia, Forenede Stater, 20016
        • Rekruttering
        • Johns Hopkins Sibley Memorial Hospital
        • Kontakt:
    • Florida
      • Miami, Florida, Forenede Stater, 33176
      • Tampa, Florida, Forenede Stater, 33612
        • Rekruttering
        • Moffitt Cancer Center
        • Kontakt:
    • Georgia
      • Atlanta, Georgia, Forenede Stater, 30318
        • Rekruttering
        • Piedmont Oncology Research
        • Kontakt:
    • Maine
      • Scarborough, Maine, Forenede Stater, 04074
        • Rekruttering
        • Maine Health Cancer Care and Blood Disorders - Scarborough
        • Kontakt:
    • Maryland
      • Baltimore, Maryland, Forenede Stater, 21287
        • Rekruttering
        • Johns Hopkins Sidney Kimmel Cancer Center - Baltimore
        • Kontakt:
    • Massachusetts
      • Boston, Massachusetts, Forenede Stater, 02114
        • Rekruttering
        • Massachusetts General Hospital
        • Kontakt:
      • Boston, Massachusetts, Forenede Stater, 02215
        • Rekruttering
        • Beth Israel Deaconess Medical Center
        • Kontakt:
      • Boston, Massachusetts, Forenede Stater, 02215
    • Michigan
      • Ann Arbor, Michigan, Forenede Stater, 48109
      • Detroit, Michigan, Forenede Stater, 48202
        • Rekruttering
        • Henry Ford Cancer- Detroit
        • Kontakt:
        • Kontakt:
    • Minnesota
      • Minneapolis, Minnesota, Forenede Stater, 55455
    • Missouri
      • St Louis, Missouri, Forenede Stater, 63108
        • Rekruttering
        • Washington University School of Medicine Siteman Cancer Center
        • Kontakt:
    • Nebraska
      • Omaha, Nebraska, Forenede Stater, 68106
        • Rekruttering
        • University of Nebraska Medical Center
        • Kontakt:
    • New Jersey
      • Hackensack, New Jersey, Forenede Stater, 07601
        • Rekruttering
        • John Theurer Cancer Center at Hackensack University Medical Center
        • Kontakt:
      • New Brunswick, New Jersey, Forenede Stater, 08901
        • Rekruttering
        • Rutgers Cancer Institute
        • Kontakt:
      • Summit, New Jersey, Forenede Stater, 07901
    • New York
      • Lake Success, New York, Forenede Stater, 11042
        • Rekruttering
        • Northwell Health Center for Advanced Medicine - Brain Tumor Center
        • Kontakt:
      • New York, New York, Forenede Stater, 10032
      • The Bronx, New York, Forenede Stater, 10461
        • Rekruttering
        • Montefiore Medical Center
        • Kontakt:
    • North Carolina
      • Winston-Salem, North Carolina, Forenede Stater, 27157
    • Ohio
      • Cleveland, Ohio, Forenede Stater, 44195
        • Rekruttering
        • Cleveland Clinic Taussig Cancer Center
        • Kontakt:
      • Columbus, Ohio, Forenede Stater, 43210
        • Rekruttering
        • Ohio State University
        • Kontakt:
    • Pennsylvania
      • Philadelphia, Pennsylvania, Forenede Stater, 19107
        • Rekruttering
        • Thomas Jefferson University, Sidney Kimmel Comprehensive Cancer Center
        • Kontakt:
      • Pittsburgh, Pennsylvania, Forenede Stater, 15232
        • Rekruttering
        • UPMC Hillman Cancer Center
        • Kontakt:
    • South Carolina
      • Greenville, South Carolina, Forenede Stater, 29605
    • Texas
      • Houston, Texas, Forenede Stater, 77030
        • Rekruttering
        • UT MD Anderson Cancer Center
        • Kontakt:
    • Utah
      • Salt Lake City, Utah, Forenede Stater, 84112
        • Rekruttering
        • Huntsman Cancer Institute, University of Utah
        • Kontakt:
    • Virginia
      • Fairfax, Virginia, Forenede Stater, 22031
      • Richmond, Virginia, Forenede Stater, 23298
        • Rekruttering
        • VCU Massey Comprehensive Cancer Center
        • Kontakt:
    • Wisconsin
      • Madison, Wisconsin, Forenede Stater, 53792
        • Rekruttering
        • University of Wisconsin Carbone Cancer Center
        • Kontakt:

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

Key Inclusion Criteria:

  • Newly diagnosed histologically confirmed glioblastoma that is isocitrate dehydrogenase wild type (IDH-WT).
  • Positive EGFR status in the brain tumor as determined by a commercially available test or validated laboratory assay (CLIA or comparable certification).
  • For Part 1 (Safety Lead-in) ONLY: EGFR alterations.
  • For Part 2 (Randomized, Controlled Trial) ONLY: EGFRvIII.
  • For Part 2 (Randomized, Controlled Trial) ONLY: Unmethylated MGMT promoter tumor status based on a validated assay.
  • No treatment for newly diagnosed GBM other than surgery followed by standard-of-care adjuvant postoperative radiation (54 to 60 Gy) and TMZ chemotherapy.
  • At least 4 weeks since completion of radiation therapy, with a post-radiation MRI showing no progression.

Key Exclusion Criteria:

  • Recurrent multifocal disease, metastatic, leptomeningeal, or extracranial GBM, or gliomatosis cerebri.
  • Progression of GBM prior to Enrollment, Screening, or Randomization.
  • Biopsy-only/no resectional surgery.
  • Prior or concomitant treatment for GBM with an EGFR-targeting agent, including silevertinib, bevacizumab, cytotoxic chemotherapy, immunotherapy, experimental therapies, Gliadel wafers, GammaTile®, or other intratumoral or intracavitary antineoplastic therapy.
  • Intent to use Optune® (TTF).
  • Significant other uncontrolled health conditions or other malignancies.

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
Eksperimentel: silevertinib and temozolomide

silevertinib at dose determined in Part 1 until disease progression in combination with temozolomide 150-200 mg/m2 orally once daily on Days 1 to 5 of each 28-day cycle for maximum of 6 cycles

Participants enrolled into Part 1 (Safety Lead-In) or randomized to Arm A in Part 2 will receive silevertinib at dose determined in Part 1 until disease progression in combination with temozolomide 150-200 mg/m2 orally once daily on Days 1 to 5 of each 28-day cycle for maximum of 6 cycles.

Andre navne:
  • Temodar
  • TMZ
  • BDTX-1535
Aktiv komparator: temozolomide

temozolomide 150-200 mg/m2 orally once daily on Days 1 to 5 of each 28-day cycle for maximum of 6 cycles

Participants randomized to Arm B will receive temozolomide 150-200 mg/m2 orally once daily on Days 1 to 5 of each 28-day cycle for maximum of 6 cycles

Andre navne:
  • Temodar
  • TMZ

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Progression-free survival (PFS) assessed by Blinded Independent Central Review (BICR)
Tidsramme: 12 months

Progression-free survival, defined as the time from the date of randomization to the date of first disease progression per RANO 2.0 by BICR assessment or death from any cause, whichever occurs first.

12 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Overall Survival
Tidsramme: 18 months

Overall survival defined as time from first dose of study drug to death from any cause.

18 months

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)

5. maj 2026

Primær færdiggørelse (Anslået)

1. november 2028

Studieafslutning (Anslået)

1. marts 2029

Datoer for studieregistrering

Først indsendt

7. januar 2026

Først indsendt, der opfyldte QC-kriterier

7. januar 2026

Først opslået (Faktiske)

8. januar 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

2. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

30. oktober 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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