MedPath

Mycophenolate Mofetil Combined With Radiation Therapy in Glioblastoma

Phase 1
Active, not recruiting
Conditions
Recurrent Gliosarcoma
Newly Diagnosed Astrocytoma, Grade IV
Recurrent Glioblastoma
Newly Diagnosed Glioblastoma
Newly Diagnosed Gliosarcoma
Recurrent Astrocytoma, Grade IV
Interventions
Radiation: Radiation Therapy
Procedure: Re-resection (as part of standard of care)
Registration Number
NCT04477200
Lead Sponsor
University of Michigan Rogel Cancer Center
Brief Summary

This is a phase 0/1 dose-escalation trial to determine the maximum tolerated dose of Mycophenolate Mofetil (MMF) when administered with radiation, in patients with glioblastoma or gliosarcoma.

Detailed Description

The goal of the Phase 0 component is to determine if MMF achieves active concentrations in brain tumors. Eight participants in Phase 0 will receive MMF for one week before undergoing an already planned biopsy or re-resection (surgical removal) of glioblastoma or gliosarcoma (GBM/GS). A small portion of the tumor, removed as part of clinical care, will be used for testing in this study. Sixty additional participants will be enrolled in the Phase 1 component of the trial (30 with recurrent GBM/GS and 30 with newly diagnosed GBM/GS). The goal of the Phase 1 component is to find the dose of MMF that works best without causing severe side effects (the maximum tolerated dose) when combined with radiation in recurrent GBM/GS and with radiation and chemotherapy in newly diagnosed GBM/GS. Participants in Phase 0 who meet the eligibility criteria for the Phase 1 component may participate in both phases.

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
68
Inclusion Criteria
  • Glioblastoma or gliosarcoma (recurrent or newly diagnosed).
  • Karnofsky Performance Status 60 or greater.
  • Phase 0: Candidate for clinically indicated re-resection or biopsy of glioblastoma or gliosarcoma per treating physician(s).
  • Phase 1, Recurrent: Candidate for clinically indicated re-irradiation of glioblastoma or gliosarcoma per treating physician(s) (No more than one prior course of radiation for GBM).
  • Phase 1, Newly Diagnosed: Candidate for upfront standard of care chemoradiation for glioblastoma or gliosarcoma per treating physician(s), to start no earlier than 14 days post- operatively from last definitive surgery for glioblastoma or gliosarcoma (if more than one surgery done. Ex. biopsy prior to resection).
  • ANC >=1,500 cells/mm^3 within 14 days prior to enrollment.
  • Patient (men and childbearing age women) agrees to the use of highly effective contraception during study participation and for at least 6 weeks for female patients and 90 days for male patients after final MMF administration.
  • Ability to understand and the willingness to sign a written informed consent.
Exclusion Criteria
  • Lack of histopathological diagnosis of the tumor.
  • Gliomatosis cerebri pattern (tumor involving 3 or more lobes) of disease.
  • Leptomeningeal disease.
  • Use of bevacizumab within 8 weeks of study enrollment.
  • Known history of HIV.
  • Active hepatitis B or C infection.
  • Active systemic or central nervous system (CNS) infection.
  • Grade 4 lymphopenia (if ALC <0.5, patient must be on Pneumocystis jirovecii prophylaxis).
  • Estimated CrCl < 25 ml/min.
  • History of organ transplantation.
  • Patients with known hypoxanthine-guanine phosphoribosyl-transferase deficiency.
  • Serious intercurrent disease.
  • History of allergic reaction or hypersensitivity to mycophenolate mofetil or mycophenolic acid or any component of the drug product; or medical contraindication for MMF per treating physician(s).
  • Known immunosuppressive condition from autoimmune disease, immune deficiency syndrome, or chronic immunosuppressive therapy.
  • Inability to undergo MRI brain with and without contrast.
  • Pregnant or lactating women.
  • Patients with known phenylketonuria.
  • Phase 0: Patients undergoing biopsy who are deemed unlikely to have sufficient tissue to spare for research purposes (e.g., those whose tumors are in an eloquent brain location where all tissue taken must be used for diagnostic purposes).
  • Phase I: Increase in steroid requirement within 7 days of study enrollment (stable or decreasing dose allowed).
  • Phase I, Recurrent: Radiation within 6 months prior to study enrollment.
  • Phase I, Recurrent: Surgery within 4 weeks of re-irradiation.
  • Phase I, Newly Diagnosed: History of hypersensitivity reactions to temozolomide or any other ingredients in temozolomide and dacarbazine.
  • Phase I, Newly Diagnosed: Prior chemotherapy or radiation therapy for glioblastoma or gliosarcoma.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Phase 1 - Newly Diagnosed GBM / GSTemozolomideMycophenolate mofetil; radiation therapy; temozolomide
Phase 1 - Newly Diagnosed GBM / GSMycophenolate MofetilMycophenolate mofetil; radiation therapy; temozolomide
Phase 0 - Recurrent glioblastoma (GBM) / gliosarcoma (GS)Re-resection (as part of standard of care)Mycophenolate mofetil
Phase 1 - Recurrent GBM / GSRadiation TherapyMycophenolate mofetil; radiation therapy
Phase 1 - Newly Diagnosed GBM / GSRadiation TherapyMycophenolate mofetil; radiation therapy; temozolomide
Phase 1 - Recurrent GBM / GSMycophenolate MofetilMycophenolate mofetil; radiation therapy
Phase 0 - Recurrent glioblastoma (GBM) / gliosarcoma (GS)Mycophenolate MofetilMycophenolate mofetil
Primary Outcome Measures
NameTimeMethod
Number of newly diagnosed phase 1 participants who experience dose-limiting toxicities (DLTs) at each dose level -- DLT1 periodUp to 28 days following completion of MMF + RT + TMZ (up to ~11 weeks)

DLT will be defined based on the rate of drug related grade 3-5 adverse events experienced from the start of treatment with MMF and for up to 4 weeks after completion of MMF + RT + TMZ. Assessed using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0.

This measure includes only newly diagnosed phase 1 participants.

Number of newly diagnosed phase 1 participants who experience dose-limiting toxicities (DLTs) at each dose level -- DLT2 periodDuring the first 2 cycles (8 weeks) of MMF with adjuvant TMZ (up to ~19 weeks)

DLT will be defined based on the rate of drug related grade 3-5 adverse events experienced during the first 2 cycles (8 weeks) of MMF with adjuvant TMZ. (The first cycle of MMF with adjuvant TMZ begins 28 days post-RT.) These will be assessed using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0.

This measure includes only newly diagnosed phase 1 participants.

Number of recurrent phase 1 participants who experience dose-limiting toxicities (DLTs) at each dose levelUp to 28 days following completion of MMF + RT (up to ~9 weeks)

DLT will be defined based on the rate of drug related grade 3-5 adverse events experienced from the start of treatment with MMF and for up to 4 weeks after completion of MMF + radiation therapy (RT). Assessed using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5.0.

This measure includes only phase 1 participants with recurrent GBM/GS.

Concentration of mycophenolic acid (MPA) in tumor tissue in Phase 0 participantsAt 1 week

The concentration of MPA (the active metabolite of mycophenolate mofetil \[MMF\]) in tumor tissue, measured by mass spectrometry on a continuous scale after one week of MMF administration.

This measure includes all phase 0 participants.

Secondary Outcome Measures
NameTimeMethod
Concentrations of guanosine triphosphate (GTP) in tumor tissue in Phase 0 participantsAfter one week of MMF administration

The concentrations of GTP in tumor tissue, measured by mass spectrometry on a continuous scale.

This measure includes all phase 0 participants.

Median Progression Free Survival (PFS) in phase 1 participants with recurrent GBM/GSUntil study stops or death; up to approximately 3 years.

PFS defined as time from date of registration to the date of documented progressive disease, other disease related therapy or death. Determined by mRANO criteria.

This measure includes only phase 1 participants with recurrent GBM/GS.

Overall Response Rate in phase 1 participants with recurrent GBM/GSUntil study stops or death; up to approximately 3 years.

Determined by modified Response Assessment for Neuro-Oncology (mRANO) criteria. The number and proportion of patients with progressive disease, stable disease, partial and complete response will be calculated for each dose level and overall.

This measure includes only phase 1 participants with recurrent GBM/GS.

Adverse events associated with treatment in newly diagnosed phase 1 participantsUp to 28 days following completion of MMF with adjuvant temozolomide (up to ~15 months)

Toxicities at each dose level will be tabulated, categorized by grade and attribution.

This measure includes only newly diagnosed phase 1 participants.

Adverse events associated with treatment in all Phase 1 ParticipantsUp to 28 days following completion of MMF + RT (up to ~9 weeks)

Toxicities at each dose level will be tabulated, categorized by grade and attribution.

This measure includes all phase 1 participants.

Median Overall Survival (OS) in phase 1 participants with recurrent GBM/GSUntil study stops or death; up to approximately 3 years.

OS defined as time from date of registration to date of death or last follow up. Determined by Kaplan Meier method.

This measure includes only phase 1 participants with recurrent GBM/GS.

Median Freedom from Local Progression (FFLP) in phase 1 participants with recurrent GBM/GSUntil study stops or death; up to approximately 3 years.

FFLP defined as time from date of registration to the date of documented local progressive disease. Determined by mRANO criteria.

This measure includes only phase 1 participants with recurrent GBM/GS.

Trial Locations

Locations (1)

University of Michigan Rogel Cancer Center

🇺🇸

Ann Arbor, Michigan, United States

© Copyright 2025. All Rights Reserved by MedPath