This phase II trial studies how well HIF-2 alpha inhibitor PT2385 works in treating patients with recurrent glioblastoma. HIF-2 alpha inhibitor PT2385 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.
PRIMARY OBJECTIVES: I. To estimate the efficacy of hypoxia inducible factor (HIF)-2 alpha inhibitor PT2385 (PT2385) as measured by radiographic response rate (by Response Assessment in Neuro-Oncology, RANO, criteria) in patients with recurrent glioblastoma. SECONDARY OBJECTIVES: I. To estimate the efficacy of PT2385 as measured by progression free and overall survival in patients with recurrent glioblastoma. II. To determine the safety of oral PT2385 in patients with recurrent glioblastoma. TERTIARY OBJECTIVES: I. To describe the pharmacokinetic and pharmacodynamic properties of PT2385 in patients with recurrent glioblastoma. II. To describe baseline intratumoral hypoxia using novel, advanced magnetic resonance (MR)-based neuroimaging sequences in patients with recurrent glioblastoma. III. To explore genetic polymorphisms involved in the metabolism of PT2385. OUTLINE: Patients receive HIF-2 alpha inhibitor PT2385 orally (PO) twice daily (BID) on days 1-28. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 2 months for 2 years and every 6 months thereafter.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
24
Given PO
Correlative studies
Correlative studies
UAB Comprehensive Cancer Center
Birmingham, Alabama, United States
Jonsson Comprehensive Cancer Center at UCLA
Los Angeles, California, United States
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Baltimore, Maryland, United States
Tumor Radiographic Response as Assessed by the RANO Criteria
Tumor radiographic response assessed by Response Assessment in Neuro-Oncology (RANO) criteria. * Complete Response (CR) = no change in size of T1-gadolinium-enhancing (T1-Gd+) disease, stable or reduced T2/FLAIR signal, no new lesion, no corticosteroid use, and stable or improved clinical status * Partial Response (PR) = ≥50% change in size of T1-Gd+ disease, stable or reduced T2/FLAIR signal, no new lesion, stable or reduced corticosteroid use, and stable or improved clinical status * Stable Disease (SD) = \<50% reduction to \<25% increase size of T1-Gd+ disease, stable or reduced T2/FLAIR signal, no new lesion, stable or reduced corticosteroid use, and stable or improved clinical status * Progressive Disease (PD) = ≥25% increase size of T1-Gd+ disease, or increased T2/FLAIR signal, or presence of new lesion, or worsening clinical status.
Time frame: Up to 2 years
Progression-free Survival (PFS)
PFS (in months) will be estimated using Kaplan-Meier method along with 95% confidence interval. Definition of PFS is date treatment started to the date of progression.
Time frame: Assessed up to 2 years
Overall Survival
Overall survival (in months) will be estimated using Kaplan-Meier method along with 95% confidence interval.
Time frame: From the date of treatment start to the date of death occurrence/or censored at the time of last known alive, assessed up to 2 years
Incidence of Grade 3 and Grade 4 Adverse Events
Number of participants experiencing grade 3 and grade 4 adverse events assessed by National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0.
Time frame: Up to 1 year
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Correlative studies
Dana-Farber/Harvard Cancer Center at Dana Farber Cancer Institute
Boston, Massachusetts, United States
Henry Ford Hospital
Detroit, Michigan, United States
Memorial Sloan-Kettering Cancer Center
New York, New York, United States
Wake Forest University Comprehensive Cancer Center
Winston-Salem, North Carolina, United States
Cleveland Clinic Taussig Cancer Center
Cleveland, Ohio, United States
Abrams Cancer Center of the University of Pennsylvania
Philadelphia, Pennsylvania, United States
Hillman Cancer Center at University of Pittsburgh Cancer Institute
Pittsburgh, Pennsylvania, United States