• Clin Neurol Neurosurg · Oct 2013

    Concomitant and adjuvant temozolomide of newly diagnosed glioblastoma in elderly patients.

    • Timo Behm, Antonia Horowski, Simon Schneider, Hans Christoph Bock, Dorothee Mielke, Veit Rohde, and Florian Stockhammer.
    • Department of Neurosurgery, Universitätsmedizin Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany.
    • Clin Neurol Neurosurg. 2013 Oct 1; 115 (10): 2142-6.

    ObjectiveThe effect of concomitant and adjuvant temozolomide in glioblastoma patients above the age of 65 years lacks evidence. However, after combined treatment became standard at our center all patients were considered for combined therapy. We retrospectively analyzed the effect of temozolomide focused on elderly patients.Methods293 patients with newly diagnosed glioblastoma treated single-centered between 1998 and 2010, by radiation alone or concomitant and adjuvant radiochemotherapy, were included. Treatment groups were analyzed by multi- and univariate analysis. Matched pairs for age, by a 5-year-caliper, extent of resection and general state was generated for all patients and elderly subgroups.Results103 patients received radiation only and 190 combined treatment. Multivariate and matched pair analysis revealed a benefit due to combined temozolomide (HR 1.895 and 1.752, respectively). For patients older than 65 years median survival was 3.6 (95% CI 3.2-4.7) and 8.7 months (6.3-11.8) for radiotherapy only and combined treatment (HR 3.097, p<0.0001, n=90). Over the age of 70 and 75 years median survival was 3.2 (2.3-4.2) vs. 7.5 (5.1-10.9, HR 4.453, p<0.0001, n=62) and 3.2 (1.4-3.9) vs. 9.2 months (4.7-13.5; HR 9.037, p<0.0001, n=24), respectively. In 8/56 (14%) patients over the age of 70 years temozolomide was terminated due to toxicity.ConclusionRetrospective matched pair analysis gives class 2b evidence for prolonged survival due to concomitant and adjuvant temozolomide in elderly glioblastoma patients. Until prospective data for combined radiochemotherapy in elderly patients will be available concomitant and adjuvant temozolomide therapy should not be withheld.Copyright © 2013 Elsevier B.V. All rights reserved.

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