• Progression-free survival (PFS) [ Time Frame: From date of randomization to date of clinically determined progression or date of death from any cause, or until 12 months following last patient randomization (approximately 2 years), whichever comes first. ]
  Progression-free survival is defined as the time from randomization to clinically determined progression or death from any cause. All participants will be included in the analysis of PFS.
• Tumor Response [ Time Frame: From initiation of study treatment to date of disease progression, or until 12 months following last patient randomization (approximately 2 years), whichever comes first. ]
  Tumor response is categorized by Complete Response (CR), Partial Response (PR), Stable Disease (SD), and Progressive Disease (PD). Response captured from initiation of study treatment until disease progression.
• Duration of Response (CR + PR) [ Time Frame: From date of response to date of clinically determined disease progression or date of death from any cause, or until 12 months following last patient randomization (approximately 2 years), whichever comes first. ]
  Duration of response (CR+PR) is defined as time from date of response to date of clinically determined disease progression or death from any cause.

Glioblastoma (GBM) adaptive, global, innovative learning environment (GBM AGILE) is an international, seamless Phase II/III response adaptive randomization platform trial designed to evaluate multiple therapies in newly diagnosed (ND) and recurrent GBM. Its goals are to identify effective therapies for glioblastoma and match effective therapies with patient subtypes. Bayesian response adaptive randomization is used within subtypes of the disease to assign participants to Arms based on their performance. The primary endpoint is overall survival (OS).

GBM AGILE is designed to efficiently evaluate therapies. The trial will be conducted under a single Master Investigational New Drug Application/Clinical Trial Application and Master Protocol, allowing multiple drugs and drug combinations from different pharmaceutical companies to be evaluated simultaneously. The plan is to add experimental therapies as new information about promising new drugs are identified and remove therapies as they complete their evaluation.

• Drug: Temozolomide
  Dosage Form: Capsule for oral administration Strengths: 5 mg, 20 mg, 100 mg, 140 mg, 180 mg, or 250 mg
  Other Names:

  • Temodar
  • Temodal
  • Temcad
• Drug: Lomustine
  Dosage Form: Capsule for oral administration Strength: 5 mg, 10 mg, 40 mg, and 100 mg
  Other Names:

  • CCNU
  • CeeNU
  • Gleostine
• Drug: Regorafenib
  Dosage Form: Tablet for oral administration Strength: 40 mg Standard Regimen: 160 mg orally (PO) every day (QD) for 3 weeks of every 4 week cycle (i.e., 3 weeks on, 1 week off)
  Other Names:

  • Stivarga
  • BAY 73-4506
• Radiation: Radiation
  60 Gy
• Drug: Paxalisib
  Dosage Form: Tablet for oral administration Strength: 15 mg Standard Regimen: 45 mg orally (PO) every day for 28 days for the first cycle. If tolerated, increase dose to 60 mg orally (PO) every day for 28 days for all subsequent cycles
  Other Name: GDC-0084
• Drug: VAL-083
  Dosage Form: Infusion for intravenous administration Strength: 30 mg/m2 Standard Regimen: 30 mg/m2 on Day 1, 2 and 3 of 21-day cycle. The drug is available in powder form. It is reconstituted with 5 mL of 0.9% Sodium Chloride for Injection, USP. This will produce a solution of 40 mg VAL-083 in 5 mL. The required volume of reconstituted VAL-083 for the patient is then calculated at the rate of 30 mg/m2. The corresponding volume is further diluted into 250 mL of 0.9% Sodium Chloride for Injection, USP, prior to intravenous administration.
  Other Name: Dianhydrogalactitol

• Active Comparator: Control Arm

  Newly Diagnosed GBM: Radiation therapy (XRT) 60 Gy for 6 weeks. Temozolomide 75 mg/m2 orally daily during radiation therapy. Rest Period 2-6 weeks from the last day of radiation, and the start of the first cycle of Maintenance Therapy 2-6 weeks after the last day of radiotherapy. The start of all subsequent maintenance therapy cycles (2-12) every 4 weeks + 7 days after the first daily dose of temozolomide of the preceding cycle. Total number of cycles should comply with institutional or country standards. During maintenance therapy, the first cycle of temozolomide will be at 150 mg/m2 for Days 1-5 of a 28-day cycle. Second and subsequent cycles of maintenance therapy will be at 200 mg/m2 for Days 1-5 of a 28-day cycle.

  Recurrent GBM: Lomustine started at 110 mg/m2/day on Day 1 of a 42-day cycle as per local standards. Treatment will continue for up to 6 total cycles.

  Interventions:

  • Drug: Temozolomide
  • Drug: Lomustine
  • Radiation: Radiation
• Experimental: Regorafenib Treatment Arm

  Newly Diagnosed MGMT Unmethylated GBM: XRT 60 Gy for 6 weeks. Temozolomide 75 mg/m2 orally daily during radiation therapy. Rest Period 4 weeks from the last day of radiation. Maintenance period: Regorafenib (Dosage Form: Tablet for oral administration; Strength: 40 mg) 160 mg orally (PO) every day (QD) for 3 weeks of every 4 week cycle (i.e., 3 weeks on, 1 week off).

  Recurrent GBM: Regorafenib (Dosage Form: Tablet for oral administration; Strength: 40 mg) 160 mg orally (PO) every day (QD) for 3 weeks of every 4 week cycle (i.e., 3 weeks on, 1 week off).

  Intervention: Drug: Regorafenib
• Experimental: Paxalisib Treatment Arm

  Newly Diagnosed MGMT Unmethylated GBM: XRT 60 Gy for 6 weeks. Temozolomide 75 mg/m2 orally daily during radiation therapy. Rest Period 4 weeks from the last day of radiation. Maintenance period: Paxalisib (Dosage Form: Tablet for oral administration; Strength: 15 mg per tablet) 45 mg orally (PO) every day for 28 days for the first cycle. If tolerated, increase dose to 60 mg orally (PO) every day for 28 days for all subsequent cycles.

  Recurrent GBM: Paxalisib (Dosage Form: Tablet for oral administration; Strength: 15 mg per tablet) 45 mg orally (PO) every day for 21 days for the first cycle. If tolerated, increase dose to 60 mg orally (PO) every day for 21 days for all subsequent cycles.

  Intervention: Drug: Paxalisib
• Experimental: VAL-083 Treatment Arm

  Newly Diagnosed MGMT Methylated and Unmethylated GBM: XRT 60 Gy for 6 weeks. Temozolomide 75 mg/m2 orally daily during radiation therapy. Rest Period 4 weeks from the last day of radiation. Maintenance period: VAL-083 (Dosage Form: Infusion for intravenous administration; Strength: 30 mg/m2) on Day 1, 2 and 3 of 21-day cycle.

  Recurrent GBM: VAL-083 (Dosage Form: Infusion for intravenous administration; Strength: 30 mg/m2) on Day 1, 2 and 3 of 21-day cycle.

  Intervention: Drug: VAL-083

Newly Diagnosed Inclusion Criteria:

• Age ≥ 18 years.
• Histologically confirmed Grade IV GBM/gliosarcoma established following either a surgical resection or biopsy.
• Karnofsky performance status ≥ 60% performed within a 14-day window prior to randomization.
• Availability of tumor tissue representative of GBM from definitive surgery or biopsy.

Recurrent Inclusion Criteria:

• Age ≥ 18 years.
• Histologically confirmed GBM/gliosarcoma (WHO criteria; non-IDH R132H mutant) at first or second recurrence after initial standard, control or experimental therapy that includes at a minimum Radiation Therapy (RT).
• Evidence of recurrent disease (RD) demonstrated by disease progression using slightly modified Response Assessment in Neuro-Oncology (RANO) criteria.
• Karnofsky performance status ≥ 70% performed within a 14-day window prior to randomization.
• Availability of tumor tissue representative of GBM from initial definitive surgery and/or, recurrent surgery, if performed.

Newly Diagnosed Exclusion Criteria:

• Any prior treatment for glioma including: prior prolifeprospan 20 with carmustine wafer; prior intracerebral agent; prior radiation treatment for GBM or lower-grade glioma; prior chemotherapy or immunotherapy for GBM or lower-grade glioma.
• Receiving additional, concurrent, active therapy for GBM outside of the trial
• Extensive leptomeningeal disease.
• QTc > 450 msec if male and QTc > 470 msec if female.
• History of another malignancy in the previous 3 years, with a disease-free interval of < 3 years. Patients with prior history of in situ cancer or basal or squamous cell skin cancer are eligible.

Recurrent Exclusion Criteria:

• Early disease progression prior to 3 months (12 weeks) from the completion of RT.
• More than 2 prior lines for chemotherapy administration. (NOTE: In the 1st line adjuvant setting, combination of Temozolomide (TMZ) with an experimental agent, is considered one line of chemotherapy.)
• Any prior treatment with lomustine, agents part of any of the experimental arms, and bevacizumab or other vascular endothelial growth factor (VEGF) or VEGF receptor-mediated targeted agent.
• Any prior treatment with prolifeprospan 20 with carmustine wafer.
• Any prior treatment with an intracerebral agent.
• Receiving additional, concurrent, active therapy for GBM outside of the trial
• Extensive leptomeningeal disease.
• QTc > 450 msec if male and QTc > 470 msec if female.
• History of another malignancy in the previous 2 years, with a disease-free interval of < 2 years. Participant with prior history of in situ cancer or basal or squamous cell skin cancer are eligible.

• Bayer
• Kazia Therapeutics Limited
• Kintara Therapeutics, Inc.