Chad G Rusthoven1, Matthew Koshy2, David J Sher3, Douglas E Ney4, Laurie E Gaspar1, Bernard L Jones1, Sana D Karam1, Arya Amini1, D Ryan Ormond5, A Samy Youssef5, Brian D Kavanagh1. 1. Department of Radiation Oncology, University of Colorado School of Medicine, Aurora. 2. Department of Radiation Oncology, University of Illinois at Chicago School of Medicine, Chicago3Department of Radiation and Cellular Oncology, University of Chicago School of Medicine, Chicago, Illinois. 3. Department of Radiation Oncology, University of Texas Southwestern, Dallas. 4. Division of Neuro-Oncology, Department of Neurology, University of Colorado School of Medicine, Aurora. 5. Department of Neurosurgery, University of Colorado School of Medicine, Aurora.
Abstract
IMPORTANCE: The optimal management for elderly patients with glioblastoma (GBM) is controversial. Following maximal safe resection or biopsy, accepted treatment paradigms for elderly patients with GBM include combined-modality therapy (CMT) with both radiotherapy (RT) and chemotherapy (CT), RT alone, and CT alone. OBJECTIVE: To evaluate the overall survival (OS) outcomes associated with RT, CT, and CMT for elderly patients with GBM in the modern temozolomide era. DESIGN, SETTING, AND PARTICIPANTS: In this retrospective cohort study of a prospectively maintained, multi-institutional national cancer registry, the National Cancer Database was queried for elderly patients (≥65 years) with newly diagnosed GBM from January 1, 2005, through December 31, 2011, with complete data sets for RT, CT, tumor resection, Charlson-Deyo comorbidity scores, age, sex, and year of diagnosis. Data analysis was performed from October 2015 through December 2015. INTERVENTIONS: Combined-modality therapy, RT, CT. MAIN OUTCOMES AND MEASURES: Survival by treatment cohort was estimated using the Kaplan-Meier method and analyzed using the log rank test, univariate and multivariate Cox models, and propensity score-matched analyses. RESULTS: A total of 16 717 patients (median [range] age, 73 [65-≥90 y]; 8870 [53%] male) were identified. The median OS by treatment was 9.0 (95% CI, 8.8-9.3) months with CMT (8435 patients), 4.7 (95% CI, 4.5-5.0) months with RT alone (1693 patients), 4.3 (95% CI, 4.0-4.7) months with CT alone (1018 patients), and 2.8 (95% CI, 2.8-2.9) months with no therapy (5571 patients) (P < .001). On multivariate analysis, CMT was superior to both CT alone (hazard ratio, 1.50 [95% CI, 1.40-1.60]; P < .001) and RT alone (hazard ratio, 1.47 [95% CI, 1.39-1.55]; P < .001), whereas no differences were observed between CT alone vs RT alone (P = .60). Propensity score-matched analyses redemonstrated improved OS with CMT over CT alone (P = .002) and RT alone (P < .001); no differences were observed between CT alone vs RT alone (P = .44). On subgroup analyses, a consistent OS advantage was observed with CMT over both CT alone and RT alone across each age stratification (65-69, 70-74, 75-79, and ≥80 years) and among patients treated with or without tumor resection (all P < .001). CONCLUSIONS AND RELEVANCE: In this analysis of multimodality therapy for elderly patients with GBM, OS was superior with CMT compared with CT alone and RT alone. Survival was similar between CT alone and RT alone, and both CT alone and RT alone were superior to no therapy. This analysis supports the use of CMT for suitable elderly candidates.
IMPORTANCE: The optimal management for elderly patients with glioblastoma (GBM) is controversial. Following maximal safe resection or biopsy, accepted treatment paradigms for elderly patients with GBM include combined-modality therapy (CMT) with both radiotherapy (RT) and chemotherapy (CT), RT alone, and CT alone. OBJECTIVE: To evaluate the overall survival (OS) outcomes associated with RT, CT, and CMT for elderly patients with GBM in the modern temozolomide era. DESIGN, SETTING, AND PARTICIPANTS: In this retrospective cohort study of a prospectively maintained, multi-institutional national cancer registry, the National Cancer Database was queried for elderly patients (≥65 years) with newly diagnosed GBM from January 1, 2005, through December 31, 2011, with complete data sets for RT, CT, tumor resection, Charlson-Deyo comorbidity scores, age, sex, and year of diagnosis. Data analysis was performed from October 2015 through December 2015. INTERVENTIONS: Combined-modality therapy, RT, CT. MAIN OUTCOMES AND MEASURES: Survival by treatment cohort was estimated using the Kaplan-Meier method and analyzed using the log rank test, univariate and multivariate Cox models, and propensity score-matched analyses. RESULTS: A total of 16 717 patients (median [range] age, 73 [65-≥90 y]; 8870 [53%] male) were identified. The median OS by treatment was 9.0 (95% CI, 8.8-9.3) months with CMT (8435 patients), 4.7 (95% CI, 4.5-5.0) months with RT alone (1693 patients), 4.3 (95% CI, 4.0-4.7) months with CT alone (1018 patients), and 2.8 (95% CI, 2.8-2.9) months with no therapy (5571 patients) (P < .001). On multivariate analysis, CMT was superior to both CT alone (hazard ratio, 1.50 [95% CI, 1.40-1.60]; P < .001) and RT alone (hazard ratio, 1.47 [95% CI, 1.39-1.55]; P < .001), whereas no differences were observed between CT alone vs RT alone (P = .60). Propensity score-matched analyses redemonstrated improved OS with CMT over CT alone (P = .002) and RT alone (P < .001); no differences were observed between CT alone vs RT alone (P = .44). On subgroup analyses, a consistent OS advantage was observed with CMT over both CT alone and RT alone across each age stratification (65-69, 70-74, 75-79, and ≥80 years) and among patients treated with or without tumor resection (all P < .001). CONCLUSIONS AND RELEVANCE: In this analysis of multimodality therapy for elderly patients with GBM, OS was superior with CMT compared with CT alone and RT alone. Survival was similar between CT alone and RT alone, and both CT alone and RT alone were superior to no therapy. This analysis supports the use of CMT for suitable elderly candidates.
Authors: Tyler P Robin; Bernard L Jones; Oren M Gordon; Andy Phan; Diana Abbott; Jessica D McDermott; Julie A Goddard; David Raben; Ryan M Lanning; Sana D Karam Journal: Cancer Date: 2017-04-03 Impact factor: 6.860
Authors: Marc Zanello; Alexandre Roux; Renata Ursu; Sophie Peeters; Luc Bauchet; Georges Noel; Jacques Guyotat; Pierre-Jean Le Reste; Thierry Faillot; Fabien Litre; Nicolas Desse; Evelyne Emery; Antoine Petit; Johann Peltier; Jimmy Voirin; François Caire; Jean-Luc Barat; Jean-Rodolphe Vignes; Philippe Menei; Olivier Langlois; Edouard Dezamis; Antoine Carpentier; Phong Dam Hieu; Philippe Metellus; Johan Pallud Journal: J Neurooncol Date: 2017-07-19 Impact factor: 4.130
Authors: Antje Wick; Tobias Kessler; Andrew E H Elia; Frank Winkler; Tracy T Batchelor; Michael Platten; Wolfgang Wick Journal: Neuro Oncol Date: 2018-01-22 Impact factor: 12.300