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

A Phase 3, Open-label, Randomized 2-arm Study Comparing the Clinical Efficacy and Safety of Niraparib With Temozolomide in Adult Participants With Newly-diagnosed, MGMT Unmethylated Glioblastoma

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

Study Overview

• Status: Active, not recruiting
• Conditions: Glioblastoma; Brain Tumor; GBM; Brain Neoplasms, Adult, Malignant
• Intervention / Treatment: Drug: Niraparib; Drug: Temozolomide

• Study Type: Interventional
• Enrollment (Estimated): 450
• Phase: Phase 3

Contacts and Locations

Study Locations

• Australia
  • Victoria
    • Fitzroy, Victoria, Australia, 3065
      • St Vincent's Hospital Melbourne
    • Heidelberg, Victoria, Australia, 3084
      • Austin Health
    • Melbourne, Victoria, Australia, 3000
      • Peter MacCallum Cancer Centre
    • Melbourne, Victoria, Australia, 3004
      • Bayside Health (formerly The Alfred Hospital)
• Canada
  • British Columbia
    • Vancouver, British Columbia, Canada, V5Z 4E6
      • BC Cancer - Vancouver
  • Ontario
    • Toronto, Ontario, Canada, M4N 3M5
      • Sunnybrook Health Sciences Centre
    • Toronto, Ontario, Canada, M5G 2M9
      • University Health Network - Princess Margaret Cancer Centre
  • Quebec
    • Montreal, Quebec, Canada, H2X 0C1
      • CHUM (Centre hospitalier de l'Université de Montréal)
    • Sherbrooke, Quebec, Canada, J1H 5N4
      • Centre Hospitalier Universitaire de Sherbrooke
• France
  • Dijon, France, 21079
    • Centre Georges Francois Leclerc
  • Alpes Maritimes
    • Nice, Alpes Maritimes, France, 06001
      • CHU Nice - Hôpital Pasteur
  • Bouches-du-Rhône
    • Marseille, Bouches-du-Rhône, France, 13385
      • Hopital de la Timone
  • Herault
    • Montpellier, Herault, France, 34298
      • Institut du Cancer de Montpellier
  • Ille et Vilaine
    • Rennes, Ille et Vilaine, France, 35000
      • CRLCC Eugene Marquis
  • Loire Atlantique
    • Saint-Herblain, Loire Atlantique, France, 44800
      • ICO - Site René Gauducheau
  • Paris
    • Paris, Paris, France, 75013
      • Groupe Hospitalier Pitie-Salpetriere
  • Rhone
    • Bron, Rhone, France, 69500
      • Centre Hospitalier Universitaire de Lyon-Hospices Civils de Lyon-Hopital Pierre Wertheimer
    • Lyon, Rhone, France, 69008
      • Centre Leon Berard
  • Somme
    • Amiens, Somme, France, 80054
      • CHU Amiens-Picardie - Site Sud
• Germany
  • Baden-Wurttemberg
    • Heidelberg, Baden-Wurttemberg, Germany, 69120
      • Universitaetsklinikum Heidelberg
    • Mannheim, Baden-Wurttemberg, Germany, 68167
      • Universitaetsmedizin Mannheim
    • Tübingen, Baden-Wurttemberg, Germany, 72076
      • Universitaetsklinikum Tuebingen
  • Bavaria
    • Regensburg, Bavaria, Germany, 93053
      • Universitaetsklinikum Regensburg
  • North Rhine-Westphalia
    • Bonn, North Rhine-Westphalia, Germany, 53127
      • Universitaetsklinikum Bonn AoeR
  • Saxony
    • Chemnitz, Saxony, Germany, 09116
      • Klinikum Chemnitz gGmbH
    • Leipzig, Saxony, Germany, 04103
      • Universitaetsklinikum Leipzig
  • State of Berlin
    • Berlin, State of Berlin, Germany, 12351
      • Vivantes Klinikum Neukoelln
• Italy
  • Bologna
    • Bologna, Bologna, Italy, 40139
      • IRCCS Istituto delle Scienze Neurologiche di Bologna
  • Firenze
    • Florence, Firenze, Italy, 50134
      • Azienda Ospedaliera Universitaria Careggi
  • Milano
    • Milan, Milano, Italy, 20133
      • Fondazione IRCCS Istituto Neurologico Carlo Besta
    • Rozzano, Milano, Italy, 20089
      • Istituto Clinico Humanitas
  • Napoli
    • Naples, Napoli, Italy, 80147
      • A.S.L. Napoli 1 Centro Ospedale del Mare
  • Padova
    • Padova, Padova, Italy, 35128
      • Iov - Istituto Oncologico Veneto Irccs
  • Roma
    • Rome, Roma, Italy, 00161
      • Azienda Ospedaliera Universitaria Policlinico Umberto I - Università di Roma La Sapienza
  • Torino
    • Torino, Torino, Italy, 10124
      • Azienda Ospedaliero-Universitaria Città della Salute e della Scienza di Torino
• Netherlands
  • Maastricht, Netherlands, 6229 HX
    • Maastricht UMC
  • Utrecht, Netherlands, 3584 CX
    • UMC Utrecht
• Norway
  • Oslo, Norway, 0379
    • Oslo Universitetssykehus HF, Radiumhospitalet
  • Trondheim, Norway, 7030
    • St. Olavs hospital HF, Universitetssykehuset i Trondheim
• Spain
  • Barcelona, Spain, 08906
    • ICO l'Hospitalet - Hospital Duran i Reynals
  • Barcelona
    • Barcelona, Barcelona, Spain, 08036
      • Hospital Clínic de Barcelona
    • Barcelona, Barcelona, Spain, 08003
      • Hospital del Mar
    • Barcelona, Barcelona, Spain, 08035
      • Hospital Universitari Vall d'Hebron
  • Córdoba
    • Córdoba, Córdoba, Spain, 14004
      • Hospital Universitario Reina Sofia
  • Girona
    • Girona, Girona, Spain, 17007
      • ICO Girona - Hospital Universitari de Girona Dr Josep Trueta
  • Madrid
    • Madrid, Madrid, Spain, 28041
      • Hospital Universitario 12 de Octubre
    • Madrid, Madrid, Spain, 28034
      • Hospital Universitario Ramon y Cajal
    • Madrid, Madrid, Spain, 28050
      • Hospital Universitario Hm Madrid Sanchinarro
  • Navarre
    • Pamplona, Navarre, Spain, 31008
      • Clinica Universidad de Navarra
  • Salamanca
    • Salamanca, Salamanca, Spain, 37370
      • Hospital Clinico Universitario de Salamanca
  • Sevilla
    • Seville, Sevilla, Spain, 41013
      • Hospital Universitario Virgen del Rocío
• Switzerland
  • Basel, Switzerland, 4031
    • Universitaetsspital Basel
  • Bellinzona, Switzerland, 6500
    • Ente Ospedaliero Cantonale
  • Bern, Switzerland, 3010
    • Inselspital - Universitaetsspital Bern
  • Zurich, Switzerland, 8091
    • Universitaetsspital Zürich
• United Kingdom
  • London, United Kingdom, SE1 9RT
    • Guy's Hospital
  • Avon
    • Bristol, Avon, United Kingdom, BS2 8ED
      • Bristol Haematology and Oncology Centre
  • Cambridgeshire
    • Cambridge, Cambridgeshire, United Kingdom, CB2 0QQ
      • Addenbrooke's Hospital
  • Greater Manchester
    • Manchester, Greater Manchester, United Kingdom, M20 4BX
      • The Christie Hospital
  • Merseyside
    • Metropolitan Borough of Wirral, Merseyside, United Kingdom, CH63 4JY
      • The Clatterbridge Cancer Centre
  • South Glamorgan
    • Cardiff, South Glamorgan, United Kingdom, CF14 2TL
      • Velindre Cancer Centre
  • Strathclyde
    • Glasgow, Strathclyde, United Kingdom, G12 0YN
      • Beatson West of Scotland Cancer Centre
  • West Midlands
    • Birmingham, West Midlands, United Kingdom, B15 2TH
      • Queen Elizabeth Hospital
• United States
  • Alabama
    • Birmingham, Alabama, United States, 35233
      • University of Alabama at Birmingham
  • Arizona
    • Phoenix, Arizona, United States, 85013
      • Ivy Brain Tumor Center
  • California
    • La Jolla, California, United States, 92093
      • Moores UCSD Cancer Center
    • La Jolla, California, United States, 92037
      • Scripps Cancer Center
  • Connecticut
    • Guilford, Connecticut, United States, 06437
      • Smilow Cancer Hospital at Yale New Haven
  • Indiana
    • Indianapolis, Indiana, United States, 46202
      • Indiana University
  • Louisiana
    • Baton Rouge, Louisiana, United States, 70809
      • The NeuroMedical Center
  • Maine
    • South Portland, Maine, United States, 04106
      • MaineHealth Maine Medical Center Care
  • Massachusetts
    • Boston, Massachusetts, United States, 02111
      • Tufts Medical Center
  • Michigan
    • Ann Arbor, Michigan, United States, 48109
      • University of Michigan Rogel Cancer Center
  • Minnesota
    • Minneapolis, Minnesota, United States, 55407
      • Allina Health
    • Minneapolis, Minnesota, United States, 55455
      • University of Minnesota Health Clinics and Surgery Center, Minneapolis
  • Missouri
    • Kansas City, Missouri, United States, 64111
      • Saint Lukes Neuro Oncology
    • St Louis, Missouri, United States, 63110
      • Washington University, School of Medicine
  • New Jersey
    • Neptune City, New Jersey, United States, 07753
      • Jersey Shore University Medical Center
    • Summit, New Jersey, United States, 07901
      • Atlantic Health System
  • New York
    • New Hyde Park, New York, United States, 11042
      • Northwell Health
    • New York, New York, United States, 10016
      • New York University Ambulatory Care Center
    • The Bronx, New York, United States, 10461
      • Montefiore Medical Center
  • North Carolina
    • Durham, North Carolina, United States, 27710
      • Duke Cancer Center Brain Tumor Clinic
    • Winston-Salem, North Carolina, United States, 27157
      • Wake Forest Baptist Health
  • Ohio
    • Cincinnati, Ohio, United States, 45267
      • University of Cincinnati Cancer Institute
    • Cleveland, Ohio, United States, 44195
      • The Cleveland Clinic Foundation
    • Columbus, Ohio, United States, 43210
      • The Ohio State University
  • Oregon
    • Portland, Oregon, United States, 97213
      • Providence Portland Medical Center
  • Pennsylvania
    • Philadelphia, Pennsylvania, United States, 19107
      • Thomas Jefferson University
    • Pittsburgh, Pennsylvania, United States, 15232
      • University of Pittsburgh Medical Center Health System
  • South Carolina
    • Charleston, South Carolina, United States, 29425
      • Medical University of South Carolina - Department of Neurosurgery
  • Texas
    • Temple, Texas, United States, 76508
      • Baylor Scott & White Health
  • Vermont
    • Burlington, Vermont, United States, 05401
      • The University of Vermont Medical Center
  • Washington
    • Seattle, Washington, United States, 98109
      • University of Washington Medical Center
  • Wisconsin
    • Madison, Wisconsin, United States, 53706
      • University of Wisconsin Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• 1. Histologic documentation of a newly-diagnosed intracranial GBM, per 2021 WHO classification guidelines through local pathology review.
• 2. Age ≥18 years at the time of signing informed consent.
• 3. Sufficient tissue available for retrospective central pathology review, retrospective central confirmation of MGMT promoter methylation status and genomic analysis. If insufficient tissue is available,pproval may be granted on a case-by-case basis after a review.
• 4. Unmethylated MGMT promoter region determined locally by a validated PSQ or qMS-PCR assay compliant to local regulations. Numerical cut-off for an MGMT unmethylated tumor will be defined in the protocol.
• 5. Suitability for SOC RT to 60 Gy in 30 fractions using ESTRO-EANO 'single phase' targeting approach [Niyazi, 2023], per investigator's judgment.
• 6. No prior treatment for GBM (including brachytherapy or BCNU wafers), other than surgical resection or biopsy.
• 7. Female participants: Not pregnant, planning to get pregnant, or breastfeeding and one of the following conditions apply: is of nonchildbearing potential or is of childbearing potential AND using a contraceptive method that is highly effective (with a failure rate of <1% per year) from screening through at least 180 days after the last dose of study intervention. Breastfeeding is contraindicated during the study and for one month after the last dose of study intervention.
• 8. Male participants: Must agree to the following during the study intervention period and for at least 6 months after the last dose of study intervention: refrain from donation sperm PLUS be abstinent from heterosexual activity or agree to use a male condom and be advised of the benefit for a female partner to use a contraceptive method that is highly effective (with a failure rate of <1% per year).
• 9. The participant must be capable of providing signed informed consent, including compliance with the requirements and restrictions listed in the ICF and in this protocol.
• 10. Karnofsky performance status of ≥70.
• 11. Adequate organ function
• 12. Normal blood pressure (BP) or adequately treated and controlled hypertension (defined as systolic BP ≤140 mmHg and diastolic BP ≤90 mmHg).
• 13. Stable or decreased dose of dexamethasone, requiring no more than 5 mg daily equivalent dose, within 7 days before randomization.
• 14. Ability to swallow oral medications whole.

Exclusion Criteria:

• 1. Presence of metastatic or predominant leptomeningeal disease.
• 2. Current active pneumonitis or any history of pneumonitis requiring steroids (any dose) or immunomodulatory treatment within 90 days of planned start of the study.
• 3. Participant is at an increased bleeding risk due to concurrent conditions (e.g., major injuries or major surgery within the past 28 days prior to start of study treatment with the exception of tumor resection).
• 4. Any clinically significant gastrointestinal abnormalities that may alter absorption such as malabsorption syndrome or major resection of the stomach and/or bowels.
• 5. Has cirrhosis or current unstable liver or biliary disease per investigator assessment defined by the presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal/gastric varices, or persistent jaundice. NOTE: Stable noncirrhotic chronic liver disease (including Gilbert's syndrome or asymptomatic gallstones), hepatobiliary involvement of malignancy, or chronic stable HBV infection (in a participant for whom HDV infection has been excluded) or chronic HCV infection is acceptable if the participant otherwise meets entry criteria.

• 6. Known human immunodeficiency virus (HIV) unless participants meet all of the following criteria:

  • Cluster of differentiation 4 ≥350/µL and viral load <400 copies/mL.
  • No history of acquired immunodeficiency syndrome-defining opportunistic infections within 12 months prior to enrollment.
  • No history of HIV-associated malignancy for the past 5 years.
  • Concurrent antiretroviral therapy as per the most current National Institutes of Health (NIH) Guidelines for the Use of Antiretroviral Agents in Adults and Adolescents Living with HIV [NIH, 2021] started >4 weeks prior to study enrollment.
• 7. MDS/AML or with features suggestive of MDS/AML.
• 8. History of another malignancy within 2 years prior to registration. Participants with a past history of adequately treated carcinoma-in-situ, basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or superficial transitional cell carcinoma of the bladder are eligible. Participants with a history of other malignancies are eligible if they have been treated with curative intent or continuously disease free for at least 2 years after definitive primary treatment.
• 9. Prior history of posterior reversible encephalopathy syndrome (PRES).
• 10. Any psychological, familial, sociological, or geographical condition potentially hampering compliance with the study requirements and/or follow-up procedures.
• 11. Inability to undergo MRI brain with IV contrast.
• 12. Biopsy and/or resection (whichever is later) occurring >6 weeks prior to planned RT start date.
• 13. Surgical wound complication recovery at the time of enrollment.
• 14. Known hypersensitivity to the components of niraparib, TMZ, or their formulation excipients.
• 15. Known hypersensitivity to dacarbazine (DTIC).
• 16. Prior therapy with PARP inhibitors for systemic cancer.
• 17. Received a live vaccine within 30 days before the planned start of study intervention. Coronavirus disease 2019 (COVID-19) vaccines that do not contain live viruses are allowed. Note: mRNA and adenoviral-based COVID-19 vaccines are considered non-live.
• 18. Received a transfusion (platelets or red blood cells) or colony-stimulating factors (e.g., granulocyte macrophage colony-stimulating factor or recombinant erythropoietin) within 4 weeks of the planned start of study intervention.
• 19. Treatment with another investigational drug or other intervention within 5 half-lives of the investigational product.
• 20. Treatment with tumor treating fields (e.g., Optune) for GBM.
• 21. Presence of known isocitrate dehydrogenase (IDH) mutation.
• 22. Presence of known H3 mutation.
• 23. Previous diagnosis of WHO Grade 2 or 3 glioma.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Arm A: Niraparib	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; Other Names: Zejula
Active Comparator: Arm B: Temozolomide	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.; Other Names: Temodar; TMZ

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Overall survival	Overall survival, defined as the time from the date of randomization to the date of death due to any cause.	24 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Progression-free survival (PFS) assessed by Blinded Independent Central Review (BICR)	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.	24 months
Overall response rate	Percentage of patients who achieved confirmed complete response or confirmed partial response to treatment evaluated using RANO 2.0 by BICR.	24 months
Compare symptoms, function, and Health-related quality of life (HRQoL) and symptoms by EORTC QLQ-C30-item Core module (EORTC QLQ-C30) (Scores on a scale)	EORTC QLQ-C30 is a validated questionnaire to assess overall health-related quality of life in participants with cancer.	on Day 1 pre-dose or up to 7 days prior, on any day during the 6th week of RT, and on days of MRI at 4- and 12- weeks after RT, every 16 weeks thereafter on days of MRI
Compare symptoms, function, and Health-related quality of life (HRQoL) and symptoms by EORTC QLQ-BN20-item Core module (EORTC QLQ-BN20) (Scores on a scale)	EORTC QLQ-BN20 is a clinically valid and useful tool for assessing disease- and treatment-specific symptoms in brain neoplasm participants.	on Day 1 pre-dose or up to 7 days prior, on any day during the 6th week of RT, and on days of MRI at 4- and 12- weeks after RT, every 16 weeks thereafter on days of MRI
Changes from baseline in neurocognitive function assessed by Controlled Oral Word Association	The Controlled Oral Word Association Test is designed to evaluate verbal fluency. It requires participants to name words beginning with a specific letter with increasing associated activity, in 3 one-minute periods.	on Day 1 pre-dose or up to 7 days prior, on any day during the 6th week of RT, and on days of MRI at 4- and 12- weeks after RT, every 16 weeks thereafter on days of MRI
Changes from baseline in neurocognitive function assessed by Trail Making Test Parts A and B	The Trail Making Test Part A is designed to evaluate visual motor scanning speed, and the Trail Making Test Part B is designed to evaluate executive function. These tests require participants to connect circles in numerical (Part A) or alternating numerical and alphabetical sequence (Part B) within a timed interval of less than 5 minutes for each test.	on Day 1 pre-dose or up to 7 days prior, on any day during the 6th week of RT, and on days of MRI at 4- and 12- weeks after RT, every 16 weeks thereafter on days of MRI
Frequency and severity of symptomatic AEs based on PRO-CTCAE	The PRO-CTCAE is a patient-reported outcome measure developed to evaluate symptomatic toxicity in patients on cancer clinical trials.	24 months
Compare symptoms, function, and Health-related quality of life (HRQoL) and symptoms by EQ-5D-3L	The EQ-5D-3L descriptive system comprises the following five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.	on Day 1 pre-dose or up to 7 days prior, on any day during the 6th week of RT, and on days of MRI at 4- and 12- weeks after RT, every 16 weeks thereafter on days of MRI
Changes from baseline in neurocognitive function assessed by Hopkins Verbal Learning test	The Hopkins Verbal Learning Test is designed to evaluate memory. It requires participants to memorize a list of 12 items for 3 consecutive tests (recall), to identify the same 12 items from a list of semantically related or unrelated items (recognition), and to recall the same 12 items after a 15-minute delay (delayed recall).	on Day 1 pre-dose or up to 7 days prior, on any day during the 6th week of RT, and on days of MRI at 4- and 12- weeks after RT, every 16 weeks thereafter on days of MRI
Incidence of participants with adverse events (AEs), serious adverse events (SAEs) and adverse events of special interest (AESIs)	AEs, SAEs and AESIs will be collected	24 months
Incidence of treatment discontinuations, dose interruptions, and dose reductions due to AEs, SAEs, or AESIs, changes in Karnofsky performance status, changes in clinical laboratory results, and vital sign measurements	Treatment discontinuations, dose interruptions, and dose reductions	24 months

Collaborators and Investigators

• Sponsor: Ivy Brain Tumor Center
• Collaborators: GlaxoSmithKline
• Investigators: Study Chair: Nader Sanai, MD, Ivy Brain Tumor Center

Study record dates

Study Major Dates

• Study Start (Actual): June 19, 2024
• Primary Completion (Estimated): December 1, 2027
• Study Completion (Estimated): March 1, 2028

Study Registration Dates

• First Submitted: April 24, 2024
• First Submitted That Met QC Criteria: April 24, 2024
• First Posted (Actual): April 29, 2024

Study Record Updates

• Last Update Posted (Actual): July 1, 2026
• Last Update Submitted That Met QC Criteria: June 29, 2026
• Last Verified: June 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Neoplasms by Site; Neoplasms; Neoplasms by Histologic Type; Neoplasms, Glandular and Epithelial; Astrocytoma; Glioma; Neoplasms, Neuroepithelial; Neuroectodermal Tumors; Neoplasms, Germ Cell and Embryonal; Neoplasms, Nerve Tissue; Nervous System Neoplasms; Central Nervous System Neoplasms; Glioblastoma; Brain Neoplasms; Organic Chemicals; Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Azoles; Dacarbazine; Triazenes; Imidazoles; Temozolomide; niraparib
• Other Study ID Numbers: IVY P3-24-021

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No