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A Study Comparing Niraparib With Temozolomide in Adult Participants With Newly-diagnosed, MGMT Unmethylated Glioblastoma

NCT06388733 · Status: RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 450

Last updated 2026-04-01

No results posted yet for this study

Summary

The goal of this Phase 3 clinical trial is to compare the efficacy of niraparib versus temozolomide (TMZ) in adult participants with newly-diagnosed, MGMT unmethylated glioblastoma multiforme (GBM). The main question it aims to answer is:

Does niraparib improve overall survival (OS) compared to TMZ?

Participants will be randomly assigned to one of two treatment arms: niraparib or TMZ.

* study drug (Niraparib) or
* comparator drug (Temozolomide - which is the standard approved treatment for MGMT unmethylated glioblastoma).

The study medication will be taken daily while receiving standard of care radiation therapy (RT) for 6-7 weeks.

Participants may continue to take the niraparib or TMZ adjuvantly as long as the cancer does not get worse or completion of 6 cycles of treatment (TMZ). A total of 450 participants will be enrolled in the study.

Participants' tasks will include:

* Complete study visits as scheduled
* Complete a diary to record study medication

Conditions

Interventions

DRUG

Niraparib

Participants will receive niraparib 200 mg orally once daily starting on Day 1 of RT. Following completion of RT, participants will continue niraparib adjuvant therapy orally once daily on Days 1 to 28 of each 28-day cycle until progression by BICR

DRUG

Temozolomide

Participants randomized to the comparator arm (Arm B) will receive SOC TMZ 75 mg/m2 orally once daily with RT starting on Day 1 of RT. Following completion of RT, participants will complete a 4-week rest period, and then receive adjuvant TMZ 150 to 200 mg/m2 orally once daily on Days 1 to 5 of each 28-day cycle until progression by BICR or for a maximum of 6 cycles.

Sponsors & Collaborators

Principal Investigators

  • Nader Sanai, MD · Ivy Brain Tumor Center

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-06-19
Primary Completion
2027-12-31
Completion
2028-03-31
FDA Drug
Yes

Countries

  • United States
  • Australia
  • Canada
  • France
  • Germany
  • Italy
  • Netherlands
  • Norway
  • Spain
  • Switzerland
  • United Kingdom

Study Locations

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Entities

Drugs
Diseases
Companies

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 NCT06388733 on ClinicalTrials.gov