A prospective phase II single-institution trial of sunitinib for recurrent malignant glioma

Edward Pan1, Daohai Yu, Binglin Yue

  • 1Department of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612-9416, USA. edward.pan@moffitt.org

Insights

Sunitinib did not show significant anti-glioma activity in patients with recurrent glioblastoma (GB) or anaplastic astrocytoma (AA). This study evaluated sunitinib

Area of Science:

  • Neuro-oncology
  • Medical oncology
  • Clinical trial research

Background:

  • Recurrent glioblastoma (GB) and anaplastic astrocytoma (AA) have limited treatment options.
  • Sunitinib is an oral small molecule inhibitor targeting multiple tyrosine kinase receptors.

Purpose of the Study:

  • To evaluate the efficacy and safety of single-agent sunitinib in patients with recurrent malignant astrocytic gliomas.
  • To assess treatment outcomes in patients with recurrent glioblastoma and anaplastic astrocytoma previously treated with standard therapies.

Main Methods:

  • Prospective phase II clinical trial involving 14 anaplastic astrocytoma and 16 glioblastoma patients at first or second relapse.
  • Patients received daily sunitinib for 4 weeks followed by a 2-week break.
  • Adverse events and clinical outcomes including response, stable disease, progression-free survival, and overall survival were monitored.

Main Results:

  • Common side effects included fatigue, diarrhea, neutropenia, and thrombocytopenia in both cohorts.
  • Grade 3 or greater toxicities occurred in 43% of AA patients and 31% of GB patients.
  • No partial or complete responses were observed; stable disease was achieved in 57% of AA and 31% of GB patients. Progression-free survival at 6 months was 21.5% (AA) and 16.7% (GB). Median overall survival was 12.1 months (AA) and 12.6 months (GB).

Conclusions:

  • Sunitinib did not demonstrate significant anti-glioma activity in patients with recurrent malignant astrocytic gliomas.
  • The observed efficacy and toxicity profiles were comparable to standard cytotoxic therapies.
  • This study represents the largest trial of sunitinib in recurrent malignant astrocytic gliomas to date, including the largest anaplastic astrocytoma cohort.