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Child's Nervous System

, Volume 35, Issue 11, pp 2043–2046 | Cite as

Bevacizumab in the treatment of radiation injury for children with central nervous system tumors

  • Nathan A. Dahl
  • Arthur K. Liu
  • Nicholas K. Foreman
  • Melissa Widener
  • Laura Z. Fenton
  • Margaret E. MacyEmail author
Brief Communication
  • 139 Downloads

Abstract

Purpose

Radiation-induced injury is a well-described toxicity in children receiving radiation therapy for tumors of the central nervous system. Standard therapy has historically consisted primarily of high-dose corticosteroids, which carry significant side effects. Preclinical models suggest that radiation necrosis may be mediated in part through vascular endothelial growth factor (VEGF) overexpression, providing the rationale for use of VEGF inhibitors in the treatment of CNS radiation necrosis. We present the first prospective experience examining the safety, feasibility, neurologic outcomes, and imaging characteristics of bevacizumab therapy for CNS radiation necrosis in children.

Methods

Seven patients between 1 and 25 years of age with neurologic deterioration and MRI findings consistent with radiation injury or necrosis were enrolled on an IRB-approved pilot feasibility study. Patients received bevacizumab at a dose of 10 mg/kg intravenously every 2 weeks for up to 6 total doses.

Results

Five patients (83%) were able to wean off corticosteroid therapy during the study period and 4 patients (57%) demonstrated improvement in serial neurologic exams. All patients demonstrated a decrease in T1-weighted post-gadolinium enhancement on MRI, while 5 (71%) showed a decrease in FLAIR signal. Four patients developed a progressive disease of their underlying tumor during bevacizumab therapy.

Conclusions

Our experience lends support to the safety and feasibility of bevacizumab administration for the treatment of radiation necrosis for appropriately selected patients within the pediatric population.

Keywords

Bevacizumab Radiation injury Radiation necrosis Pediatric 

Notes

Acknowledgments

Support for this study was provided by Genentech, Inc. Genentech US Drug Safety, 1 DNA Way Mailstop 258A, South San Francisco, CA 94080.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

381_2019_4304_MOESM1_ESM.docx (14 kb)
ESM 1 (DOCX 14 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Center for Cancer and Blood DisordersChildren’s Hospital ColoradoAuroraUSA
  2. 2.Morgan Adams Foundation Pediatric Brain Tumor Research Program, Department of PediatricsUniversity of Colorado School of MedicineAuroraUSA
  3. 3.Department of Radiation OncologyUniversity of Colorado School of MedicineAuroraUSA
  4. 4.Department of RadiologyChildren’s Hospital ColoradoAuroraUSA

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