NCT07605364

Brief Summary

This phase II/III trial tests how well adding mycophenolate mofetil, to the usual treatment with intensity-modulated radiation therapy and temozolomide works for the treatment of glioblastoma that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced). Mycophenolate mofetil blocks enzyme activity which can disrupt tumor activity and may make the tumor more sensitive to radiation and/or temozolomide. Intensity modulated radiation therapy is a type of 3-dimensional radiation therapy that uses computer-generated images to show the size and shape of the tumor. Thin beams of radiation of different intensities are aimed at the tumor from many angles. This type of radiation therapy reduces the damage to healthy tissue near the tumor. Temozolomide is a chemotherapy drug and in a class of medications called alkylating agents. It damages the cell's deoxyribonucleic acid (DNA) and may kill cancer cells. Giving mycophenolate mofetil with intensity-modulated radiation therapy and temozolomide may be more effective than intensity-modulated radiation therapy and temozolomide alone for the treatment of advanced glioblastoma.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
422

participants targeted

Target at P75+ for phase_2

Timeline
54mo left

Started Jun 2026

Typical duration for phase_2

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress3%
Jun 2026Jan 2031

First Submitted

Initial submission to the registry

May 19, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

May 26, 2026

Completed
15 days until next milestone

Study Start

First participant enrolled

June 10, 2026

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2029

Expected
1.3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 5, 2031

Last Updated

May 26, 2026

Status Verified

May 1, 2026

Enrollment Period

3.3 years

First QC Date

May 19, 2026

Last Update Submit

May 19, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Progression free survival (PFS) (phase II)

    PFS will be calculated from randomization until disease progression according to RANO 2.0 criteria or death due to any cause, censoring patients at their last disease evaluation. The Kaplan-Meier method will be used to estimate PFS for each arm and a stratified log-rank test will be used to compare distributions

    From randomization to the disease progression according to Response Assessment in Neuro-Oncology (RANO) 2.0 criteria or death due to any cause, up to 5 years

  • Overall survival (OS) (phase III)

    OS will be calculated from randomization until death due to any cause, censoring patients at their last disease evaluation. The Kaplan-Meier method will be used to estimate OS for each arm and a stratified log-rank test will be used to compare distributions.

    From randomization until death due to any cause, up to 5 years

Secondary Outcomes (4)

  • Tumor response

    Up to 5 years

  • Incidence of adverse events

    Up to 5 years

  • Overall survival (OS)

    From randomization until death due to any cause, up to 5 years

  • Progression free survival (PFS)

    From randomization to the disease progression according to RANO 2.0 criteria or death due to any cause, up to 5 years

Study Arms (2)

Arm I (radiation, temozolomide)

EXPERIMENTAL

Patients under 70 years undergo IMRT, Monday-Friday for 30 treatments and patients greater than or equal to 70 years undergo hypofractionated radiation therapy, Monday-Friday for 15 treatments in the absence of disease progression or unacceptable toxicity. Starting 24 hours prior to radiation, patients also receive temozolomide PO QD until the day of the last radiation treatment, in the absence of disease progression or unacceptable toxicity. Patients then undergo a 4-week rest period. Patients then receive temozolomide PO QD on days 1-5 of each cycle. Cycles repeat every 28 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study.

Radiation: Intensity-Modulated Radiation TherapyRadiation: Hypofractionated Radiation TherapyDrug: Temozolomide (TMZ)Procedure: Magnetic Resonance ImagingProcedure: Biospecimen Collection

Arm II (radiation, temozolomide, mycophenolate mofetil)

EXPERIMENTAL

Patients under 70 years undergo IMRT, Monday-Friday for 30 treatments and patients greater than or equal to 70 years undergo hypofractionated radiation therapy, Monday-Friday for 15 treatments in the absence of disease progression or unacceptable toxicity. Starting 24 hours prior to radiation, patients also receive temozolomide PO QD until the day of the last radiation treatment, and, starting on the first day of radiation, patients also receive mycophenolate mofetil PO twice daily (BID) in the absence of disease progression or unacceptable toxicity. Patients then undergo a 4-week rest period. Patients then receive temozolomide PO QD on days 1-5 and mycophenolate mofetil PO BID on days 1-28 of each cycle. Cycles repeat every 28 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI and blood sample collection throughout the study.

Radiation: Intensity-Modulated Radiation TherapyDrug: Temozolomide (TMZ)Procedure: Magnetic Resonance ImagingProcedure: Biospecimen CollectionDrug: Mycophenolate Mofetil

Interventions

Undergo hypofractionated radiation therapy

Arm I (radiation, temozolomide)

Given PO

Arm I (radiation, temozolomide)Arm II (radiation, temozolomide, mycophenolate mofetil)

Undergo MRI

Arm I (radiation, temozolomide)Arm II (radiation, temozolomide, mycophenolate mofetil)

Given PO

Arm II (radiation, temozolomide, mycophenolate mofetil)

Undergo IMRT

Also known as: IMRT
Arm I (radiation, temozolomide)Arm II (radiation, temozolomide, mycophenolate mofetil)

undergo Biospecimen Collection

Arm I (radiation, temozolomide)Arm II (radiation, temozolomide, mycophenolate mofetil)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Newly diagnosed primary glioblastoma by World Health Organization (WHO) 2021 criteria
  • No spinal cord glioblastoma
  • No leptomeningeal disease
  • No extracranial metastatic disease
  • Patient is a candidate for first-line standard of care chemoradiation per treating physician(s)
  • No prior treatment for glioblastoma other than resection (i.e. prior chemotherapy, radiation therapy, or other therapies such as laser ablation are not allowed)
  • Prior biopsy and/or resection of glioblastoma must be completed at least 14 days prior to registration with adequate wound healing
  • Age ≥ 18 years
  • Karnofsky performance status (KPS) ≥ 60
  • Absolute neutrophil count (ANC) ≥ 1,500/mm\^3
  • Platelet count ≥ 100,000 cells/mm\^3
  • Hemoglobin (Hg) ≥ 9.0 g/dL
  • Calculated (Calc.) creatinine clearance (CrCl) ≥ 25 mL/min
  • \* Calculated using the Cockcroft-Gault equation
  • Bilirubin ≤ 1.5 x upper limit of normal (ULN)
  • +21 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Interventions

Radiotherapy, Intensity-ModulatedTemozolomideMagnetic Resonance SpectroscopyMycophenolic Acid

Intervention Hierarchy (Ancestors)

Radiotherapy, ConformalRadiotherapy, Computer-AssistedRadiotherapyTherapeuticsDacarbazineTriazenesOrganic ChemicalsImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsSpectrum AnalysisChemistry Techniques, AnalyticalInvestigative TechniquesCaproatesAcids, AcyclicCarboxylic AcidsFatty AcidsLipids

Study Officials

  • Priya Kumthekar, MD

    Alliance for Clinical Trials in Oncology

    STUDY CHAIR
  • Yoshie Umemura, MD, MS

    Alliance for Clinical Trials in Oncology

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 19, 2026

First Posted

May 26, 2026

Study Start

June 10, 2026

Primary Completion (Estimated)

September 30, 2029

Study Completion (Estimated)

January 5, 2031

Last Updated

May 26, 2026

Record last verified: 2026-05