Primary brain cancer kills up to 10,000 Americans a year. These brain tumors are typically treated by surgery, radiation therapy and chemotherapy, either individually or in combination. Present therapies are inadequate, as evidenced by the low 5-year survival rate for brain cancer patients, with median survival at approximately 12 months. Glioma is the most common form of primary brain cancer, afflicting approximately 7,000 patients in the United States each year. These highly malignant cancers remain a significant unmet clinical need in oncology.
The investigators have completed a Phase I clinical trial that has shown that Superselective Intraarterial Cerebral Infusion (SIACI) of Bevacizumab (BV) is safe up to a dose of 15mg/kg in patients with recurrent malignant glioma. Additionally, the investigators have shown in a recently completed Phase I/II clinical trial, that SIACI BV improves the median progression free survival (PFS) from 4-6 months to 11.5 months and overall survival (OS) from 12-15 months to 23 months in patients with newly diagnosed GBM. Therefore, this two-arm, randomized trial (2:1) is a follow up study to these trials and will ask simple questions: Will this repeated SIACI treatment regimen increase progression free survival (PFS-primary endpoint) and overall survival (OS-secondary endpoint) when compared with standard of care in patients with newly diagnosed GBM? Exploratory endpoints will include adverse events and safety analysis as well as quality of life (QOL) assessments. The investigators expect that this project will provide important information regarding the utility of repeated SIACI BV therapy for newly diagnosed GBM and may alter the way these drugs are delivered to our patients in the near future.
Subject is a male or female 18 years of age or older.
Subject has a confirmed diagnosis of GBM according to the 2021 WHO Classification of Tumors of the CNS. Accordingly, eligible GBM patients will comprise only IDH-wild type astrocytomas with microvascular proliferation or necrosis or one or more of 3 genetic parameters (TERT promoter mutations, EGFR gene amplification, or combined gain of entire chromosome 7 and loss of entire chromosome 10).
Subject has a Karnofsky Performance Status (KPS) 70% or greater.
Subject has a life expectancy of at least 6 months, in the opinion of the Investigator.
Subject has initiated chemotherapy or radiation treatment for diagnosis of or GBM.
Subject has an IDH mutant astrocytoma or other non GBM brain tumor according to the 2021 WHO classification of Tumors of the CNS.
Subject intends to participate in another clinical trial
Subject has an active infection requiring treatment.
Parallel
Repeated Superselective Intraarterial Cerebral infusion (SIACI) of Bevacizumab (Avastin) with Temozolomide and Radiation
DrugSubjects who are assigned to the IA BV+TMZ/RT group (Treatment Group), in addition to your standard of care cancer treatment, you will have a dose of bevacizumab delivered directly to your brain through superselective intra-cranial intra-arterial catheterization of the arteries that supply blood to your brain tumor along with the start of the initial 42 day oral temozolomide treatment. IA BV will be repeated every three months for a total of 3 infusions.
Temozolomide and Radiation Alone
DrugSubjects who are assigned to the TMZ/RT alone group (Control Group) you will receive standard of care cancer treatment that involves a daily oral dose of temozolomide for 42 days with radiation to the tumor followed by 28 days of rest and then repeated maintenance treatment cycles of daily oral temozolomide 5 days on and 23 days off.
Overall survival (OS)
The primary end point will be overall survival (OS). Overall survival is defined as the time from randomization until death due to any cause. Participants who are still alive at the time of analysis will be censored at their last known alive date.
Progression-free survival (PFS)
The secondary end point will be progression-free survival (PFS). PFS is defined from the time of randomization until first documentation of disease progression (according to RANO Criteria), or death from any cause, whichever occurs first. Participants without documented disease progression at the time of analysis will be censored at the time of their last tumor assessment.
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