Re-irradiation strategies in combination with bevacizumab for recurrent malignant glioma

Schnell O, Thorsteinsdottir J, Fleischmann DF, Lenski M, Abenhardt W, Giese A, Tonn JC, Belka C, Kreth FW, Niyazi M (2016)

Publication Type: Journal article

Publication year: 2016

Journal

Journal of Neuro-Oncology Springer Verlag (Germany)

Book Volume: 130

Pages Range: 591-599

Journal Issue: 3

DOI: 10.1007/s11060-016-2267-x

Abstract

The place of bevacizumab (BEV) in salvage re-irradiation (Re-RT) settings of malignant glioma is poorly defined. In the current study risk/benefit profiles of two BEV-based Re-RT protocols were analyzed and compared with that of salvage BEV plus irinotecan (BEV/IRI). According to interdisciplinary tumor board recommendations, patients were assigned to one of three BEV-based treatment protocols: (1) BEV/IRI, (2) Re-RT (36 Gy/18 fx) with concomitant BEV (Re-RT/BEV), and (3) Re-RT with concomitant/maintenance BEV (Re-RT/BEV→BEV). Prognostic factors were obtained from proportional hazards models. Adverse events were classified according to the NCI CTCAE, v4.0. 105 consecutive patients were enrolled from 08/2008 to 05/2014. Patients undergoing Re-RT experienced longer time intervals from initial diagnosis to BEV treatment (median: 22.0 months vs. 13.7 months, p = 0.001); those assigned to Re-RT/BEV→BEV rated better on the performance scale (median KPSREC: 90 vs. 70, p = 0.013). Post-recurrence survival after BEV-based treatment (PRS) was longest after Re-RT/BEV→BEV (median: 13.1 months vs. 8 months, p = 0.006). PRS after Re-RT/BEV and BEV/IRI was similar. Multivariately, higher KPSREC and Re-RT/BEV→BEV were associated with longer PRS. Treatment toxicity did not differ among groups. Re-RT/BEV→BEV is safe, feasible and effective and deserves further prospective evaluation.

Authors with CRIS profile

Oliver Schnell

Involved external institutions

Ludwig-Maximilians-Universität (LMU) DE Germany (DE) Medizinische Zentrum für Hämatologie und Onkologie München MVZ GmbH DE Germany (DE)

How to cite

APA:

Schnell, O., Thorsteinsdottir, J., Fleischmann, D.F., Lenski, M., Abenhardt, W., Giese, A.,... Niyazi, M. (2016). Re-irradiation strategies in combination with bevacizumab for recurrent malignant glioma. Journal of Neuro-Oncology, 130(3), 591-599. https://doi.org/10.1007/s11060-016-2267-x

MLA:

Schnell, Oliver, et al. "Re-irradiation strategies in combination with bevacizumab for recurrent malignant glioma." Journal of Neuro-Oncology 130.3 (2016): 591-599.

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