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Study of Silevertinib With Temozolomide for the Treatment of Newly Diagnosed GBM With Unmethylated MGMT and EGFRvIII

NCT07326566 · Status: RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 162

Last updated 2026-05-20

No results posted yet for this study

Summary

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?

Conditions

Interventions

DRUG

silevertinib in combination with temozolomide

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.

DRUG

temozolomide (TMZ)

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

Sponsors & Collaborators

  • Black Diamond Therapeutics, Inc.

    lead INDUSTRY

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-05-05
Primary Completion
2028-11-30
Completion
2029-03-31
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07326566 on ClinicalTrials.gov