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A Single Institution’s Experience with Bevacizumab in Combination with Cytotoxic Chemotherapy in Progressive Malignant Glioma

Authors: Tina Mayer, Jill Lacy and Joachim Baehring
Publication Date: 09 Jun 2008
Clinical Medicine: Oncology 2008:2 455-459

Tina Mayer, Jill Lacy and Joachim Baehring

Medical Oncology, Yale University School of Medicine, New Haven, CT; Yale Medical Oncology, Yale University School of Medicine, New Haven, CT; Neurology, Yale University School of Medicine, New Haven, CT.

Abstract

Background:  Bevacizumab and irinotecan may represent one of the most active treatments in progressive malignant glioma. Limited published experience with bevacizumab in patients with CNS tumors raises concerns regarding toxicity, particularly in regards to hemorrhage and thromboembolism.

Methods:  We retrospectively reviewed 36 patients with progressive malignant glioma after prior resection, chemotherapy and radiation who were treated with bevacizumab at our institution. Patients were evaluated for bevacizumab-related adverse events, time to treatment failure (TTF) and overall survival (OS). Two patients who progressed or died prior to completion of 4 cycles of therapy were analyzed for adverse events only.

Results:  Patients were treated with bevacizumab alone (1), bevacizumab plus irinotecan (31), or bevacizumab plus carboplatin (4). In 34 patients who received >4 cycles of bevacizumab, median TTF and OS were 16 and 32 weeks, respectively. Toxicities included 1 arterial thrombosis, 4 venous thromboses, and 3 clinically significant CNS hemorrhages.

Conclusion:  Overall, our results confirm the efficacy and safety of bevacizumab in combination with chemotherapy in patients with progressive malignant glioma. Although the TTF and OS were less than previously reported with the combination of bevacizumab and irinotecan, this was an unselected patient population with 50% of patients having received >1 prior chemotherapy regimen.

Categories: Cancer , Oncology