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Kanakarajan H, De Baene W, Gehring K, Eekers DBP, Hanssens P, Sitskoorn M. Factors associated with the local control of brain metastases: a systematic search and machine learning application. BMC Med Inform Decis Mak 2024; 24:177. [PMID: 38907265 PMCID: PMC11191176 DOI: 10.1186/s12911-024-02579-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 06/17/2024] [Indexed: 06/23/2024] Open
Abstract
BACKGROUND Enhancing Local Control (LC) of brain metastases is pivotal for improving overall survival, which makes the prediction of local treatment failure a crucial aspect of treatment planning. Understanding the factors that influence LC of brain metastases is imperative for optimizing treatment strategies and subsequently extending overall survival. Machine learning algorithms may help to identify factors that predict outcomes. METHODS This paper systematically reviews these factors associated with LC to select candidate predictor features for a practical application of predictive modeling. A systematic literature search was conducted to identify studies in which the LC of brain metastases is assessed for adult patients. EMBASE, PubMed, Web-of-Science, and the Cochrane Database were searched up to December 24, 2020. All studies investigating the LC of brain metastases as one of the endpoints were included, regardless of primary tumor type or treatment type. We first grouped studies based on primary tumor types resulting in lung, breast, and melanoma groups. Studies that did not focus on a specific primary cancer type were grouped based on treatment types resulting in surgery, SRT, and whole-brain radiotherapy groups. For each group, significant factors associated with LC were identified and discussed. As a second project, we assessed the practical importance of selected features in predicting LC after Stereotactic Radiotherapy (SRT) with a Random Forest machine learning model. Accuracy and Area Under the Curve (AUC) of the Random Forest model, trained with the list of factors that were found to be associated with LC for the SRT treatment group, were reported. RESULTS The systematic literature search identified 6270 unique records. After screening titles and abstracts, 410 full texts were considered, and ultimately 159 studies were included for review. Most of the studies focused on the LC of the brain metastases for a specific primary tumor type or after a specific treatment type. Higher SRT radiation dose was found to be associated with better LC in lung cancer, breast cancer, and melanoma groups. Also, a higher dose was associated with better LC in the SRT group, while higher tumor volume was associated with worse LC in this group. The Random Forest model predicted the LC of brain metastases with an accuracy of 80% and an AUC of 0.84. CONCLUSION This paper thoroughly examines factors associated with LC in brain metastases and highlights the translational value of our findings for selecting variables to predict LC in a sample of patients who underwent SRT. The prediction model holds great promise for clinicians, offering a valuable tool to predict personalized treatment outcomes and foresee the impact of changes in treatment characteristics such as radiation dose.
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Affiliation(s)
- Hemalatha Kanakarajan
- Department of Cognitive Neuropsychology, Tilburg University, Tilburg, The Netherlands.
| | - Wouter De Baene
- Department of Cognitive Neuropsychology, Tilburg University, Tilburg, The Netherlands
| | - Karin Gehring
- Department of Cognitive Neuropsychology, Tilburg University, Tilburg, The Netherlands
- Department of Neurosurgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - Daniëlle B P Eekers
- Department of Radiation Oncology (Maastro), GROW School for Oncology and Reproduction, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Patrick Hanssens
- Gamma Knife Center, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
- Department of Neurosurgery, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands
| | - Margriet Sitskoorn
- Department of Cognitive Neuropsychology, Tilburg University, Tilburg, The Netherlands.
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Abdulhaleem M, Hunting JC, Wang Y, Smith MR, Agostino RDJ, Lycan T, Farris MK, Ververs J, Lo HW, Watabe K, Topaloglu U, Li W, Whitlow C, Su J, Wang G, Chan MD, Xing F, Ruiz J. Use of comprehensive genomic profiling for biomarker discovery for the management of non-small cell lung cancer brain metastases. Front Oncol 2023; 13:1214126. [PMID: 38023147 PMCID: PMC10661935 DOI: 10.3389/fonc.2023.1214126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 10/10/2023] [Indexed: 12/01/2023] Open
Abstract
Background Clinical biomarkers for brain metastases remain elusive. Increased availability of genomic profiling has brought discovery of these biomarkers to the forefront of research interests. Method In this single institution retrospective series, 130 patients presenting with brain metastasis secondary to Non-Small Cell Lung Cancer (NSCLC) underwent comprehensive genomic profiling conducted using next generation circulating tumor deoxyribonucleic acid (DNA) (Guardant Health, Redwood City, CA). A total of 77 genetic mutation identified and correlated with nine clinical outcomes using appropriate statistical tests (general linear models, Mantel-Haenzel Chi Square test, and Cox proportional hazard regression models). For each outcome, a genetic signature composite score was created by summing the total genes wherein genes predictive of a clinically unfavorable outcome assigned a positive score, and genes with favorable clinical outcome assigned negative score. Results Seventy-two genes appeared in at least one gene signature including: 14 genes had only unfavorable associations, 36 genes had only favorable associations, and 22 genes had mixed effects. Statistically significant associated signatures were found for the clinical endpoints of brain metastasis velocity, time to distant brain failure, lowest radiosurgery dose, extent of extracranial metastatic disease, concurrent diagnosis of brain metastasis and NSCLC, number of brain metastases at diagnosis as well as distant brain failure. Some genes were solely associated with multiple favorable or unfavorable outcomes. Conclusion Genetic signatures were derived that showed strong associations with different clinical outcomes in NSCLC brain metastases patients. While these data remain to be validated, they may have prognostic and/or therapeutic impact in the future. Statement of translation relevance Using Liquid biopsy in NSCLC brain metastases patients, the genetic signatures identified in this series are associated with multiple clinical outcomes particularly these ones that lead to early or more numerous metastases. These findings can be reverse-translated in laboratory studies to determine if they are part of the genetic pathway leading to brain metastasis formation.
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Affiliation(s)
- Mohammed Abdulhaleem
- Department of Internal Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - John C. Hunting
- Department of Internal Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Yuezhu Wang
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Margaret R. Smith
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Ralph D’ jr. Agostino
- Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Thomas Lycan
- Department of Internal Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Michael K. Farris
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - James Ververs
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Hui-Wen Lo
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Kounosuke Watabe
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Umit Topaloglu
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Wencheng Li
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Christopher Whitlow
- Department of Radiology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Jing Su
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Ge Wang
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Michael D. Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Fei Xing
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Jimmy Ruiz
- Department of Internal Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, NC, United States
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Berger A, Mullen R, Bernstein K, Alzate JD, Silverman JS, Sulman EP, Donahue BR, Chachoua A, Shum E, Velcheti V, Sabari J, Golfinos JG, Kondziolka D. Extended Survival in Patients With Non-Small-Cell Lung Cancer-Associated Brain Metastases in the Modern Era. Neurosurgery 2023; 93:50-59. [PMID: 36722962 DOI: 10.1227/neu.0000000000002372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/17/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Brain metastases (BM) have long been considered a terminal diagnosis with management mainly aimed at palliation and little hope for extended survival. Use of brain stereotactic radiosurgery (SRS) and/or resection, in addition to novel systemic therapies, has enabled improvements in overall and progression-free (PFS) survival. OBJECTIVE To explore the possibility of extended survival in patients with non-small-cell lung cancer (NSCLC) BM in the current era. METHODS During the years 2008 to 2020, 606 patients with NSCLC underwent their first Gamma Knife SRS for BM at our institution with point-of-care data collection. We reviewed clinical, molecular, imaging, and treatment parameters to explore the relationship of such factors with survival. RESULTS The median overall survival was 17 months (95% CI, 13-40). Predictors of increased survival in a multivariable analysis included age <65 years ( P < .001), KPS ≥80 ( P < .001), absence of extracranial metastases ( P < .001), fewer BM at first SRS (≤3, P = .003), and targeted therapy ( P = .005), whereas chemotherapy alone was associated with shorter survival ( P = .04). In a subgroup of patients managed before 2016 (n = 264), 38 (14%) were long-term survivors (≥5 years), of which 16% required no active cancer treatment (systemic or brain) for ≥3 years by the end of their follow-up. CONCLUSION Long-term survival in patients with brain metastases from NSCLC is feasible in the current era of SRS when combined with the use of effective targeted therapeutics. Of those living ≥5 years, the chance for living with stable disease without the need for active treatment for ≥3 years was 16%.
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Affiliation(s)
- Assaf Berger
- Department of Neurological Surgery, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Reed Mullen
- Department of Neurological Surgery, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Kenneth Bernstein
- Department of Radiation Oncology, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Juan Diego Alzate
- Department of Neurological Surgery, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Joshua S Silverman
- Department of Radiation Oncology, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Erik P Sulman
- Department of Radiation Oncology, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Bernadine R Donahue
- Department of Radiation Oncology, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Abraham Chachoua
- Medical Oncology, Perlmutter Cancer Center, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Elaine Shum
- Medical Oncology, Perlmutter Cancer Center, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Vamsidhar Velcheti
- Medical Oncology, Perlmutter Cancer Center, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Joshua Sabari
- Medical Oncology, Perlmutter Cancer Center, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - John G Golfinos
- Department of Neurological Surgery, NYU Langone Health Medical Center, New York University, New York, New York, USA
| | - Douglas Kondziolka
- Department of Neurological Surgery, NYU Langone Health Medical Center, New York University, New York, New York, USA
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Farris JC, Hughes RT, Razavian NB, Pearce JB, Snavely AC, Chan MD, Steber CR, Leyrer CM, Bunch PM, Willey JS, Farris MK. Brain Metastasis Incidence and Patterns of Presentation After Definitive Treatment of Locally Advanced Non-Small Cell Lung Cancer: A Potential Argument for Brain Magnetic Resonance Imaging Surveillance. Adv Radiat Oncol 2023; 8:101058. [PMID: 37273925 PMCID: PMC10238260 DOI: 10.1016/j.adro.2022.101058] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/11/2022] [Indexed: 06/06/2023] Open
Abstract
Purpose Brain metastases (BMs) are a common source of morbidity and mortality. Guidelines do not advise brain surveillance for locally advanced non-small cell lung cancer (LA-NSCLC). We describe the incidence, time to development, presentation, and management of BMs after definitive chemoradiotherapy (CRT). Methods and Materials We reviewed records of patients with LA-NSCLC treated with CRT within the period from 2013 to 2020. Descriptive statistics were used to characterize the population and the Kaplan-Meier method was used to estimate time to BM. Fisher exact tests and Wilcoxon rank-sum tests were used to compare outcomes between symptomatic and asymptomatic patients. Results A total of 219 patients were reviewed including 96 with squamous cell carcinoma, 88 with adenocarcinoma, and 35 with large cell/not otherwise specified (LC/NOS). Thirty-nine patients (17.8%) developed BMs: 35 (90%) symptomatic and 4 (10%) asymptomatic. The rate of BM was highest in LC/NOS (34.3%) and adenocarcinoma (23.9%). Ninety percent of BMs occurred within 2 years. All asymptomatic patients underwent stereotactic radiosurgery alone, compared with 40% of symptomatic patients (P = .04). Symptomatic patients were more likely to require hospitalization (65.7% vs 0%, P = .02), craniotomy (25.7% vs 0%, not significant), and steroids (91.4% vs 0%, P < .001). Cumulative BM volume was higher for symptomatic patients (4 vs 0.24 cm3, P < .001) as was median greatest axial dimension (2.18 vs 0.52 cm, P < .001). Conclusions We identified a high rate of BMs, particularly in LC/NOS and adenocarcinoma histology NSCLC. The majority were symptomatic. These results provide rationale for post-CRT magnetic resonance imaging brain surveillance for patients at high risk of BM.
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Affiliation(s)
- Joshua C. Farris
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Ryan T. Hughes
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Niema B. Razavian
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Jane B. Pearce
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Anna C. Snavely
- Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Michael D. Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Cole R. Steber
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - C. Marc Leyrer
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Paul M. Bunch
- Department of Radiology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Jeffrey S. Willey
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
| | - Michael K. Farris
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston Salem, North Carolina
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Leu J, Akerman M, Mendez C, Lischalk JW, Carpenter T, Ebling D, Haas JA, Witten M, Barbaro M, Duic P, Tessler L, Repka MC. Time interval from diagnosis to treatment of brain metastases with stereotactic radiosurgery is not associated with radionecrosis or local failure. Front Oncol 2023; 13:1132777. [PMID: 37091181 PMCID: PMC10113671 DOI: 10.3389/fonc.2023.1132777] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/07/2023] [Indexed: 04/09/2023] Open
Abstract
IntroductionBrain metastases are the most common intracranial tumor diagnosed in adults. In patients treated with stereotactic radiosurgery, the incidence of post-treatment radionecrosis appears to be rising, which has been attributed to improved patient survival as well as novel systemic treatments. The impacts of concomitant immunotherapy and the interval between diagnosis and treatment on patient outcomes are unclear.MethodsThis single institution, retrospective study consisted of patients who received single or multi-fraction stereotactic radiosurgery for intact brain metastases. Exclusion criteria included neurosurgical resection prior to treatment and treatment of non-malignant histologies or primary central nervous system malignancies. A univariate screen was implemented to determine which factors were associated with radionecrosis. The chi-square test or Fisher’s exact test was used to compare the two groups for categorical variables, and the two-sample t-test or Mann-Whitney test was used for continuous data. Those factors that appeared to be associated with radionecrosis on univariate analyses were included in a multivariable model. Univariable and multivariable Cox proportional hazards models were used to assess potential predictors of time to local failure and time to regional failure.ResultsA total of 107 evaluable patients with a total of 256 individual brain metastases were identified. The majority of metastases were non-small cell lung cancer (58.98%), followed by breast cancer (16.02%). Multivariable analyses demonstrated increased risk of radionecrosis with increasing MRI maximum axial dimension (OR 1.10, p=0.0123) and a history of previous whole brain radiation therapy (OR 3.48, p=0.0243). Receipt of stereotactic radiosurgery with concurrent immunotherapy was associated with a decreased risk of local failure (HR 0.31, p=0.0159). Time interval between diagnostic MRI and first treatment, time interval between CT simulation and first treatment, and concurrent immunotherapy had no impact on incidence of radionecrosis or regional failure.DiscussionAn optimal time interval between diagnosis and treatment for intact brain metastases that minimizes radionecrosis and maximizes local and regional control could not be identified. Concurrent immunotherapy does not appear to increase the risk of radionecrosis and may improve local control. These data further support the safety and synergistic efficacy of stereotactic radiosurgery with concurrent immunotherapy.
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Affiliation(s)
- Justin Leu
- Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States
| | - Meredith Akerman
- Division of Health Services Research, New York University (NYU) Long Island School of Medicine, Mineola, NY, United States
| | - Christopher Mendez
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University (NYU) Long Island, Mineola, NY, United States
| | - Jonathan W. Lischalk
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University (NYU) Long Island, Mineola, NY, United States
- NYCyberKnife at Perlmutter Cancer Center – Manhattan, New York, NY, United States
| | - Todd Carpenter
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University (NYU) Long Island, Mineola, NY, United States
| | - David Ebling
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University (NYU) Long Island, Mineola, NY, United States
| | - Jonathan A. Haas
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University (NYU) Long Island, Mineola, NY, United States
- NYCyberKnife at Perlmutter Cancer Center – Manhattan, New York, NY, United States
| | - Matthew Witten
- Department of Medical Physics, Perlmutter Cancer Center at New York University (NYU) Long Island, Mineola, NY, United States
| | - Marissa Barbaro
- Department of Neurology, New York University (NYU) Long Island School of Medicine, Mineola, NY, United States
| | - Paul Duic
- Department of Neurology, New York University (NYU) Long Island School of Medicine, Mineola, NY, United States
| | - Lee Tessler
- Department of Neurosurgery, Perlmutter Cancer Center at New York University (NYU) Long Island, Mineola, NY, United States
| | - Michael C. Repka
- Department of Radiation Oncology, University of North Carolina School of Medicine, Chapel Hill, NC, United States
- *Correspondence: Michael C. Repka,
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Roh H, Lee SY, Lee J, Hwang SY, Kim JH. Use of thyroid transcription factor 1 and napsin A to predict local failure and survival after Gamma Knife radiosurgery in patients with brain metastases from lung adenocarcinoma. J Neurosurg 2023; 138:663-673. [PMID: 35962961 DOI: 10.3171/2022.6.jns22450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 06/09/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Stereotactic radiosurgery (SRS), combined with contemporary targeted therapies and immunotherapies, has improved the overall survival of patients with lung adenocarcinoma (ADC). Given that histological subtypes reflect prognosis in patients with primary ADC, it is important to integrate pathological biomarkers to predict clinical outcomes after SRS in patients with brain metastases from lung ADC. Therefore, the authors investigated the prognostic relevance of various biomarkers of primary lung ADC for clinical outcomes after SRS. METHODS A total of 95 patients with 136 brain metastases (1-4 oligometastases) who were treated with Gamma Knife radiosurgery between January 2017 and December 2020 were included. The Kaplan-Meier method and univariate and multivariate analyses using Cox proportional hazard regression models were used to identify prognostic factors for local control, survival, and distant brain control. RESULTS Multivariate analysis revealed thyroid transcription factor 1 as an independent prognostic factor for local control (HR 0.098, 95% CI 0.014-0.698, p = 0.0203) and napsin A as a significant predictor of overall survival after SRS (HR 0.080, 95% CI 0.017-0.386, p < 0.01). In a subset analysis of epidermal growth factor receptor (EGFR) mutation, patients with EGFR exon 19 mutations showed better distant brain control than those with EGFR exon 21 mutations (p < 0.01). CONCLUSIONS Pathological biomarkers of primary cancer should be considered to predict clinical outcomes after SRS in patients with lung ADC. Use of such biomarkers may help to provide personalized treatment to each patient, improving clinical outcomes after SRS.
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Affiliation(s)
- Haewon Roh
- 1Department of Neurosurgery, Armed Forces Capital Hospital, Seongnam.,Departments of2Neurosurgery
| | | | - Jinhwan Lee
- 4Pathology, Guro Hospital, Korea University of Medicine, Seoul; and
| | - Soon-Young Hwang
- 5Department of Biostatistics, Korea University of Medicine, Seoul, Republic of Korea
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Natural history of lung squamous cell brain metastases in patients treated with radiosurgery: a thirty-year experience at a tertiary medical center. J Neurooncol 2023; 161:135-146. [PMID: 36469189 DOI: 10.1007/s11060-022-04153-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 09/29/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE In this study we report our 30-year experience in stereotactic radiosurgery (SRS) treatment of lung squamous cell carcinoma (LUSC) brain metastases (BMs). It will serve to provide detailed longitudinal outcomes and predictors of efficacy in treating LUSC-BMs with SRS. METHOD We retrospectively reviewed 51 patients and 109 tumors treated with SRS at our center between 1993 and 2022. Patient demographics, PDL1 genotype, immunotherapy use and mortality cause were recorded. Radiological and clinical outcomes were followed at 1-3-month intervals post-SRS. Cox-regression analysis and Kaplan-Meier survival curves were performed in statistical analysis. RESULTS We included 37 male and 14 female patients (median age 62.7 years at BM diagnosis). Median overall survival (OS) time was 6.9 months, 6-month OS rate was 62.1%, and Karnofsky performance scale (KPS) was the only independent predictor. Median time for local control maintenance was 7.6 months, 6-month local control rate was 69.1%, with TKI as the only independent predictor. Median time to distant failure was 5.13 months, 6-month distant failure rate was 51.1%, and factors with significant impact included gender (p = 0.002), presence of extracranial metastases (p < 0.001), use of immunotherapy(p < 0.001), PDL1 genotype (p = 0.034), and total intracranial metastases number (p = 0.008). However, no definitive benefits of immunotherapy were identified in patients with higher PDL1 mutational tumors. CONCLUSION In this study we defined the natural history of disease progression and outcomes in SRS-treated LUSC-BM patients. We also identified predictors of OS and tumor control among these patients. The findings of this study will serve as a guide when counseling these patients for SRS.
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Gaebe K, Li AY, Park A, Parmar A, Lok BH, Sahgal A, Chan KKW, Erickson AW, Das S. Stereotactic radiosurgery versus whole brain radiotherapy in patients with intracranial metastatic disease and small-cell lung cancer: a systematic review and meta-analysis. Lancet Oncol 2022; 23:931-939. [DOI: 10.1016/s1470-2045(22)00271-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 12/14/2022]
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9
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Ganz JC. Cerebral metastases. PROGRESS IN BRAIN RESEARCH 2022; 268:229-258. [PMID: 35074082 DOI: 10.1016/bs.pbr.2021.10.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Brain metastases are common and deadly. Over the last 25 years GKNS has been established as an invaluable treatment. It may be used as a primary treatment or after either surgery or WBRT. Patients are assessed using one of a number of available scales. GKNS may be repeated for new metastases and for unresponsive tumors. Prescription doses are usually between 18 and 20Gy. The use of advanced MR techniques to highlight sensitive structures like the hippocampi have extended the efficacy of the treatment. More recently GKNS has been used with different target therapies with improved results. More recently frameless treatments have become more popular in this group of very sick patients. GKNS controls tumors in between 80% and over 95% of cases and may even be used for brainstem tumors.
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Affiliation(s)
- Jeremy C Ganz
- Department of Neurosurgery, Haukeland University Hospital, Bergen, Norway.
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10
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Ferlini L, Peluso L, Lolli V, Gaspard N, Lefranc F. Prognosis of patients treated in a single neurosurgical reference centre for brain metastasis caused by dormant disseminated cells. Oncol Lett 2021; 21:454. [PMID: 33907564 PMCID: PMC8063273 DOI: 10.3892/ol.2021.12715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 12/30/2020] [Indexed: 11/06/2022] Open
Abstract
Brain metastasis (BM) is a frequent complication of systemic cancer usually associated with poor prognosis. Survival depends on numerous factors, which complicates prognosis and treatment. It has been suggested that BM growing from previously dormant disseminated tumour cells (DTCs) may exhibit a milder phenotype than BM derived from continuously progressing metastatic cells; however, to the best of our knowledge, the prognosis of patients presenting with BM from dormant DTCs is unknown. The present study retrospectively compared survival data, collected from a single neurosurgical centre, between patients presenting with BM from previously dormant DTCs and patients with non-dormant BM. A total of 262 medical records were reviewed. In the univariate Cox regression analysis, the median survival of the dormant BM group was statistically longer than that of the non-dormant group (P=0.048); a trend towards a longer survival persisted after correcting for age, presence of breast cancer and treatment options (P=0.057), which are all factors known to influence outcome. The improved outcome of these patients could be considered in models for prognostication. Moreover, the development of therapies able to eradicate dormant DTCs could provide a new promising strategy to prolong the survival of patients with a favourable prognosis.
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Affiliation(s)
- Lorenzo Ferlini
- Department of Neurology, Erasmus Hospital, Free University of Bruxelles, B-1070 Brussels, Belgium
| | - Lorenzo Peluso
- Department of Intensive Care, Erasmus Hospital, Free University of Bruxelles, B-1070 Brussels, Belgium
| | - Valentina Lolli
- Department of Radiology, Erasmus Hospital, Free University of Bruxelles, B-1070 Brussels, Belgium
| | - Nicolas Gaspard
- Department of Neurology, Erasmus Hospital, Free University of Bruxelles, B-1070 Brussels, Belgium
| | - Florence Lefranc
- Department of Neurosurgery, Erasmus Hospital, Free University of Bruxelles, B-1070 Brussels, Belgium
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11
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Su J, Song Q, Qasem S, O'Neill S, Lee J, Furdui CM, Pasche B, Metheny-Barlow L, Masters AH, Lo HW, Xing F, Watabe K, Miller LD, Tatter SB, Laxton AW, Whitlow CT, Chan MD, Soike MH, Ruiz J. Multi-Omics Analysis of Brain Metastasis Outcomes Following Craniotomy. Front Oncol 2021; 10:615472. [PMID: 33889540 PMCID: PMC8056216 DOI: 10.3389/fonc.2020.615472] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/18/2020] [Indexed: 01/27/2023] Open
Abstract
Background The incidence of brain metastasis continues to increase as therapeutic strategies have improved for a number of solid tumors. The presence of brain metastasis is associated with worse prognosis but it is unclear if distinctive biomarkers can separate patients at risk for CNS related death. Methods We executed a single institution retrospective collection of brain metastasis from patients who were diagnosed with lung, breast, and other primary tumors. The brain metastatic samples were sent for RNA sequencing, proteomic and metabolomic analysis of brain metastasis. The primary outcome was distant brain failure after definitive therapies that included craniotomy resection and radiation to surgical bed. Novel prognostic subtypes were discovered using transcriptomic data and sparse non-negative matrix factorization. Results We discovered two molecular subtypes showing statistically significant differential prognosis irrespective of tumor subtype. The median survival time of the good and the poor prognostic subtypes were 7.89 and 42.27 months, respectively. Further integrated characterization and analysis of these two distinctive prognostic subtypes using transcriptomic, proteomic, and metabolomic molecular profiles of patients identified key pathways and metabolites. The analysis suggested that immune microenvironment landscape as well as proliferation and migration signaling pathways may be responsible to the observed survival difference. Conclusion A multi-omics approach to characterization of brain metastasis provides an opportunity to identify clinically impactful biomarkers and associated prognostic subtypes and generate provocative integrative understanding of disease.
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Affiliation(s)
- Jing Su
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States.,Department of Biostatistics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Qianqian Song
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Shadi Qasem
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Stacey O'Neill
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Jingyun Lee
- Proteomics and Metabolomics Shared Resource, Comprehensive Cancer Center, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Cristina M Furdui
- Proteomics and Metabolomics Shared Resource, Comprehensive Cancer Center, Wake Forest University School of Medicine, Winston-Salem, NC, United States.,Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Boris Pasche
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Linda Metheny-Barlow
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Adrianna H Masters
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Hui-Wen Lo
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Fei Xing
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Kounosuke Watabe
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Lance D Miller
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Stephen B Tatter
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Adrian W Laxton
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Christopher T Whitlow
- Department of Radiology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Michael D Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Michael H Soike
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, United States.,Department of Radiation Oncology, University of Alabama-Birmingham, Birmingham, AL, United States
| | - Jimmy Ruiz
- Department of Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, NC, United States.,Section of Hematology & Oncology, W.G. (Bill) Hefner Veterans Affair Medial Center (VAMC), Salisbury, NC, United States
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12
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Correlation of Clinical Parameters with Intracranial Outcome in Non-Small Cell Lung Cancer Patients with Brain Metastases Treated with Pd-1/Pd-L1 Inhibitors as Monotherapy. Cancers (Basel) 2021; 13:cancers13071562. [PMID: 33805335 PMCID: PMC8036699 DOI: 10.3390/cancers13071562] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/19/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary We analyzed data from patients with advanced Non-Small Lung Cancer (NSCLC) and brain metastases (BM) who were treated with PD-1/PD-L1 inhibitors as monotherapy at Karolinska University Hospital, Sweden, and University Hospital of Heraklion, Greece in order to identify parameters that can potentially affect the intracranial (IC) outcome of these individuals. We assessed IC immunotherapy (I-O) efficacy in the patients who had BM prior to I-O administration, radiological evaluation for IC response assessment and they had not received any local CNS treatment modality for ≥3 months before I-O initiation. Age < 70 years old, prior radiation treatment to CNS, and primary (BM present at diagnosis) BM were associated, at a statistically significant level, with an increased probability of achieving IC disease control in our cohort. These results suggest that specific clinical parameters may potentially influence IC outcomes in NSCLC patients with BM. Abstract There is a paucity of biomarkers for the prediction of intracranial (IC) outcome in immune checkpoint inhibitor (ICI)-treated non-small cell lung cancer (NSCLC) patients (pts) with brain metastases (BM). We identified 280 NSCLC pts treated with ICIs at Karolinska University Hospital, Sweden, and University Hospital of Heraklion, Greece. The inclusion criteria for response assessment were brain metastases (BM) prior to ICI administration, radiological evaluation with CT or MRI for IC response assessment, PD-1/PD-L1 inhibitors as monotherapy, and no local central nervous system (CNS) treatment modalities for ≥3 months before ICI initiation. In the IC response analysis, 33 pts were included. Non-primary (BM not present at diagnosis) BM, odds ratio (OR): 13.33 (95% CI: 1.424–124.880, p = 0.023); no previous brain radiation therapy (RT), OR: 5.49 (95% CI: 1.210–25.000, p = 0.027); and age ≥70 years, OR: 6.19 (95% CI: 1.27–30.170, p = 0.024) were associated with increased probability of IC disease progression. Two prognostic groups (immunotherapy (I-O) CNS score) were created based on the abovementioned parameters. The I-O CNS poor prognostic group B exhibited a higher probability for IC disease progression, OR: 27.50 (95% CI: 2.88–262.34, p = 0.004). Age, CNS radiotherapy before the start of ICI treatment, and primary brain metastatic disease can potentially affect the IC outcome of NSCLC pts with BM.
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13
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Park JH, Choi BS, Han JH, Kim CY, Cho J, Bae YJ, Sunwoo L, Kim JH. MRI Texture Analysis for the Prediction of Stereotactic Radiosurgery Outcomes in Brain Metastases from Lung Cancer. J Clin Med 2021; 10:jcm10020237. [PMID: 33440723 PMCID: PMC7827024 DOI: 10.3390/jcm10020237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/08/2021] [Accepted: 01/08/2021] [Indexed: 12/30/2022] Open
Abstract
This study aims to evaluate the utility of texture analysis in predicting the outcome of stereotactic radiosurgery (SRS) for brain metastases from lung cancer. From 83 patients with lung cancer who underwent SRS for brain metastasis, a total of 118 metastatic lesions were included. Two neuroradiologists independently performed magnetic resonance imaging (MRI)-based texture analysis using the Imaging Biomarker Explorer software. Inter-reader reliability as well as univariable and multivariable analyses were performed for texture features and clinical parameters to determine independent predictors for local progression-free survival (PFS) and overall survival (OS). Furthermore, Harrell’s concordance index (C-index) was used to assess the performance of the independent texture features. The primary tumor histology of small cell lung cancer (SCLC) was the only clinical parameter significantly associated with local PFS in multivariable analysis. Run-length non-uniformity (RLN) and short-run emphasis were the independent texture features associated with local PFS. In the non-SCLC (NSCLC) subgroup analysis, RLN and local range mean were associated with local PFS. The C-index of independent texture features was 0.79 for the all-patients group and 0.73 for the NSCLC subgroup. In conclusion, texture analysis on pre-treatment MRI of lung cancer patients with brain metastases may have a role in predicting SRS response.
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Affiliation(s)
- Jung Hyun Park
- Department of Radiology, Ajou University School of Medicine, Ajou University Medical Center, Suwon 443-380, Korea;
- Department of Radiology, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea; (J.C.); (Y.J.B.); (L.S.); (J.H.K.)
| | - Byung Se Choi
- Department of Radiology, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea; (J.C.); (Y.J.B.); (L.S.); (J.H.K.)
- Correspondence: ; Tel.: +82-31-787-7625; Fax: +82-31-787-4011
| | - Jung Ho Han
- Department of Neurosurgery, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea; (J.H.H.); (C.-Y.K.)
| | - Chae-Yong Kim
- Department of Neurosurgery, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea; (J.H.H.); (C.-Y.K.)
| | - Jungheum Cho
- Department of Radiology, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea; (J.C.); (Y.J.B.); (L.S.); (J.H.K.)
| | - Yun Jung Bae
- Department of Radiology, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea; (J.C.); (Y.J.B.); (L.S.); (J.H.K.)
| | - Leonard Sunwoo
- Department of Radiology, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea; (J.C.); (Y.J.B.); (L.S.); (J.H.K.)
| | - Jae Hyoung Kim
- Department of Radiology, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea; (J.C.); (Y.J.B.); (L.S.); (J.H.K.)
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14
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Zhang J, Xu J, Jin S, Gao W, Guo R, Chen L. The development and validation of a nomogram for predicting brain metastases in lung squamous cell carcinoma patients: an analysis of the Surveillance, Epidemiology, and End Results (SEER) database. J Thorac Dis 2021; 13:270-281. [PMID: 33569207 PMCID: PMC7867817 DOI: 10.21037/jtd-20-3494] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background The incidence of brain metastasis (BM) in patients suffering from lung squamous cell carcinoma (LUSC) is lower than that in patients suffering from non-squamous cell carcinoma (NSCC) and there are few studies on BM of LUSC. The purpose of this investigation was to ascertain the risk factors of LUSC, as well as to establish a nomogram prognostic model to predict the incidence of BM in patients with LUSC. Methods Patients diagnosed with LUSC between 2010 and 2015 were identified from the Surveillance, Epidemiology, and End Results (SEER) database and the patient data were collated. All patients diagnosed from 2010–2012 were allocated into the training cohort, and the remaining patients diagnosed from 2013–2015 formed the test cohort. Using factors that were screened out through logistic regression analyses, the nomogram in the training cohort was established. It was then evaluated for discrimination and calibration using the test cohort. The performance of the nomogram was assessed by quantifying the area under the receiver operating characteristic (ROC) curve and evaluating the calibration curve. Results A total of 26,154 LUSC patients were included in the study. The training cohort consisted of 16,543 patients and there were 8611 patients in the test cohort. Age, marital status, insurance status, histological grade, tumor location, laterality, stage of the cancer, number of metastatic organs, chemotherapy, surgery, and radiotherapy were highly correlated with the incidence of BM. The area under the ROC curve (AUC) of the nomogram for the training cohort and the test cohort were 0.810 [95% confidence interval (CI): 0.796 to 0.823] and 0.805 (95% CI: 0.784 to 0.825), respectively. The slope of the calibration curve was close to 1. Conclusions The nomogram was able to accurately predict the incidence of BM. This may be beneficial for the early identification of high-risk LUSC patients and the establishment of individualized treatments.
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Affiliation(s)
- Jingya Zhang
- Nanjing Medical University, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jiali Xu
- First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Shidai Jin
- First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wen Gao
- First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Renhua Guo
- Nanjing Medical University, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Liang Chen
- First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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15
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Jiang X. Identification of Patients with Brain Metastases with Favorable Prognosis After Local and Distant Recurrence Following Stereotactic Radiosurgery. Cancer Manag Res 2020; 12:4139-4149. [PMID: 32581585 PMCID: PMC7276324 DOI: 10.2147/cmar.s251285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/13/2020] [Indexed: 12/25/2022] Open
Abstract
Purpose This retrospective study aimed to determine the prognostic factors associated with overall survival after intracranial local and distant recurrence in patients undergoing stereotactic radiosurgery (SRS) for brain metastases. Patients and Methods Clinical characteristics and therapeutic parameters of 251 patients, who were treated with initial stereotactic radiosurgery for brain metastases and later experienced intracranial recurrence, were analyzed to identify prognostic factors of post-recurrence overall survival (PROS). A Cox proportional hazard model was applied for univariate and multivariate analyses. Results Among the 251 patients, the median post-recurrence overall survival was 8 months, and the six-month PROS rate was 60.2%. The interval from initial radiosurgery treatment to intracranial recurrence (hazard ratio [HR]:0.970), the number of brain recurrent tumors (HR:1.245), the number of extracranial metastatic organs (HR:1.183), recursive partition analysis (RPA) (HR:1.778), and Eastern Cooperative Oncology Group Performance Status (ECOG PS) (HR:2.442) were identified as independent prognostic factors. The patients who received local treatment for solitary brain recurrence achieved better survival (the median survival time after recurrence was 22 months). In patients without extracranial metastasis, the median post-recurrence overall survival of the local treatment group was longer than that in the whole brain radiation therapy (WBRT) group (P<0.001) and the systemic therapy group (P<0.001). Conclusion A shorter interval from initial stereotactic radiosurgery to recurrence, an increasing number of brain recurrences and extracranial metastatic organs, and poor RPA and ECOG PS values are associated with poor post-recurrence prognosis. When the number of brain recurrent tumors and extracranial metastatic organs was limited, local treatment including stereotactic radiosurgery, surgery or intensity-modulated radiation therapy (IMRT) improved the post-recurrence overall survival.
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Affiliation(s)
- Xuechao Jiang
- Department of Radiation Oncology, Binzhou Center Hospital Affiliated to Binzhou Medical College, Binzhou, Shandong, People's Republic of China
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16
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The Choice of Local Treatment Modalities for Patients with Brain Metastases from Digestive Cancers. JOURNAL OF ONCOLOGY 2019; 2019:1568465. [PMID: 31871456 PMCID: PMC6907058 DOI: 10.1155/2019/1568465] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/13/2019] [Indexed: 11/17/2022]
Abstract
Background Brain metastases (BMs) from digestive cancers are rare; therefore, no optimal treatment modality has been defined. Methods We retrospectively reviewed the clinical data of 68257 patients with digestive cancers. Propensity score matching (PSM) was used to balance patient backgrounds between groups. Survival differences between different treatment modalities were compared. Univariate and multivariate Cox proportional hazards models were performed to identify prognostic factors on overall survival (OS). Results 270 patients with BM entered the study. In the entire group, the median survival time after diagnosis of brain metastases was 10.25 months (95% CI: 8.41–12.09 months); local treatment could significantly prolong OS (respectively, P < 0.01; even after PSM, P < 0.01); combination treatment was more effective than single treatment modality (respectively, P < 0.01; even after PSM, P < 0.01). However, each combination modality was identically effective (P > 0.05). When patients were divided into three groups based on 1, 2-3, or more than 3 metastatic lesion(s), same results were identified between local treatment and without local treatment (1 lesion, P < 0.01; 2-3 lesions, P < 0.01; more than 3 lesions, P < 0.01, respectively) and combination and single treatment (P < 0.01, P=0.02, P=0.03, respectively). However, there was no difference between different combined treatments (P > 0.05). Multivariate analysis revealed that performance status (P < 0.01), presence of extracranial metastasis (P=0.04), number of BM (P < 0.01), and local treatment for BM (P < 0.01) were independent prognostic factors. Conclusions Regardless of the number of brain lesions, local treatment achieved higher overall survival times than no local treatment, and combination therapy could offer survival benefit to patients as compared with single therapy.
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17
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Should Stereotactic Radiosurgery Be Considered for Salvage of Intracranial Recurrence after Prophylactic Cranial Irradiation or Whole Brain Radiotherapy in Small Cell Lung Cancer? A Population-Based Analysis and Literature Review. J Med Imaging Radiat Sci 2019; 51:75-87.e2. [PMID: 31759940 DOI: 10.1016/j.jmir.2019.10.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 09/24/2019] [Accepted: 10/03/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Prophylactic cranial irradiation (PCI) improves survival and prevents intracranial recurrence (IR) in limited stage (LS) and extensive stage (ES) small cell lung cancer (SCLC). However, despite PCI, IR affects 12%-45%, and limited data exist regarding salvage brain reirradiation (ReRT). We performed a population-based review of IR in SCLC. METHODS Demographic, treatment, and outcome data of consecutive patients (N = 371) with SCLC assessed at a tertiary cancer centre (01/2013-12/2015) were abstracted, and summary statistics calculated. Kaplan-Meier estimates and univariate and multivariate analysis (MVA) via the Cox proportional hazard model were performed. RESULTS Median age was 66.1 years, and 59.8% were Eastern Cooperative Oncology Group (ECOG) performance status 0-2. Median survival was 24 months (95% CI 18.3-29.7 months) for LS (N = 103) and 7 months (95% CI 6.1-7.9 months) for ES (N = 268). 72 of 103 patients with LS and 97 of 214 of those with ES received PCI. 54 of 268 ES presented with brain metastases (BM) of whom 46 of 54 received whole brain RT (WBRT). 18.9% (32/169) recurred post-PCI (13 LS; 19 ES) and 30.4% (14/46) recurred after WBRT. Of those who recurred/progressed after cranial RT, 56.5% (26/46) had <5 BM, 39.1% had no extracranial disease, and 50% were ECOG 0-2. In retrospect, 17 of 46 would have been candidates for salvage stereotactic radiosurgery: 13 post-PCI and 4 post-WBRT. CONCLUSIONS This cohort challenges commonly held beliefs that IR is always diffuse, associated with clinical deterioration, and synchronous with systemic failure. Approximately 1 in 3 SCLC patients with IR after PCI or WBRT appear clinically appropriate for salvage stereotactic radiosurgery.
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18
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CD138 plasma cells may predict brain metastasis recurrence following resection and stereotactic radiosurgery. Sci Rep 2019; 9:14385. [PMID: 31591443 PMCID: PMC6779906 DOI: 10.1038/s41598-019-50298-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 08/14/2019] [Indexed: 12/24/2022] Open
Abstract
We sought to identify candidate biomarkers for early brain metastasis (BM) recurrence in patients who underwent craniotomy followed by adjuvant stereotactic radiosurgery. RNA sequencing was performed on eight resected brain metastasis tissue samples and revealed B-cell related genes to be highly expressed in patients who did not experience a distant brain failure and had prolonged overall survival. To translate the findings from RNA sequencing data, we performed immunohistochemistry to stain for B and T cell markers from formalin-fixed parffin-embedded tissue blocks on 13 patients. CD138 expressing plasma cells were identified and quantitatively assessed for each tumor sample. Patients’ tumor tissues that expressed high levels of CD138 plasma cells (N = 4) had a statistically significant improvement in OS compared to low levels of CD138 (N = 9) (p = 0.01). Although these findings are preliminary, the significance of CD138 expressing plasma cells within BM specimens should be investigated in a larger cohort. Immunologic markers based on resection cavity analysis could be predictive for determining patient outcomes following cavity-directed SRS.
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19
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Prayongrat A, Tao R, Allen PK, Guha N, Rao G, Zhao Z, Li J, Brown PD, McGovern SL. Outcomes of stereotactic radiosurgery of brain metastases from neuroendocrine tumors. Neurooncol Pract 2018; 5:37-45. [PMID: 31385968 DOI: 10.1093/nop/npx009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background Stereotactic radiosurgery (SRS) is an established treatment for brain metastases, yet little is known about SRS for neuroendocrine tumors given their unique natural history. Objective To determine outcomes and toxicity from SRS in patients with brain metastases arising from neuroendocrine tumors. Methods Thirty-three patients with brain metastases from neuroendocrine tumors who underwent SRS were retrospectively reviewed. Median age was 61 years and median Karnofsky performance status was 80. Primary sites were lung (87.9%), cervix (6.1%), esophagus (3%), and prostate (3%). Ten patients (30.3%) received upfront SRS, 7 of whom had neuroendocrine tumors other than small cell lung carcinoma. Kaplan-Meier survival and Cox regression analyses were performed to determine prognostic factors for survival. Results With median follow-up after SRS of 5.3 months, local and distant brain recurrence developed in 5 patients (16.7%) and 20 patients (66.7%), respectively. Median overall survival (OS) after SRS was 6.9 months. Patients with progressive disease per Response Assessment in Neuro-Oncology-Brain Metastases (RANO-BM) criteria at 4 to 6 weeks after SRS had shorter median time to developing recurrence at a distant site in the brain and shorter OS than patients without progressive disease: 1.4 months and 3.3 months vs 11.4 months and 12 months, respectively (both P < .001). Toxicity was more likely in lesions of small cell histology than in lesions of other neuroendocrine tumor histology, 15.7% vs 3.3% (P = .021). No cases of grade 3 to 5 necrosis occurred. Conclusions SRS is an effective treatment option for patients with brain metastases from neuroendocrine tumors with excellent local control despite slightly higher toxicity rates than expected. Progressive disease at 4 to 6 weeks after SRS portends a poor prognosis.
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Affiliation(s)
- Anussara Prayongrat
- Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Randa Tao
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Pamela K Allen
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Nandita Guha
- Department of Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ganesh Rao
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Zhongxiang Zhao
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jing Li
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Paul D Brown
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Susan L McGovern
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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20
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Lanier CM, McTyre E, LeCompte M, Cramer CK, Hughes R, Watabe K, Lo HW, O'Neill S, Munley MT, Laxton AW, Tatter SB, Ruiz J, Chan MD. The number of prior lines of systemic therapy as a prognostic factor for patients with brain metastases treated with stereotactic radiosurgery: Results of a large single institution retrospective analysis. Clin Neurol Neurosurg 2018; 165:24-28. [PMID: 29289917 DOI: 10.1016/j.clineuro.2017.12.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 11/25/2017] [Accepted: 12/25/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVES It is presently unknown whether patients with brain metastases from heavily pre-treated cancers have a significantly different prognosis than those with less pre-treatment. In this study we sought to identify whether the number of prior lines of systemic therapy are associated with clinical outcomes in patients with brain metastases who received stereotactic radiosurgery (SRS). PATIENTS AND METHODS Between July 2000 and July 2017, 377 patients with brain metastases were treated with upfront SRS. We performed a large, single institution retrospective analysis of these patients. Kaplan Meier analysis was used to estimate survival times. Competing risk analysis was used to estimate times to local failure (LF) and distant brain failure (DBF). Multivariate analysis was performed to estimate the hazard ratios (HRs) for overall survival (OS), neurologic and non-neurologic death for patients with 1, 2 and 3+ lines of prior systemic therapy. RESULTS Of the 1077 patients with brain metastases treated with SRS, 377 received prior systemic therapy with a median of 1 (range: 1-9) lines of prior therapy. Median OS was 8.70 months (95% CI, 7.9-9.5). Median OS for patients with 1 prior line of therapy, 2 prior lines of therapy and 3 or greater lines of therapy were 9.93-, 9.05-, and 6.18-months, respectively (log rank p = .04). Lines of therapy as a continuous variable was not associated with LF or DBF on competing risk analysis. The percentage of patients that died of neurological death was 36%. Greater prior lines of therapy (1 vs. 2 vs. 3 and greater) was associated with a greater likelihood of dying of non-neurologic death (gray's p = .01), but was not associated with likelihood of dying of neurologic death (p = .57). CONCLUSION Lines of therapy are associated with OS and non-neurologic death but are not associated with neurologic death, LF or DBF.
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Affiliation(s)
- Claire M Lanier
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States.
| | - Emory McTyre
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Michael LeCompte
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Christina K Cramer
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Ryan Hughes
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Kounosuke Watabe
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Hui-Wen Lo
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Stacey O'Neill
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Michael T Munley
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Adrian W Laxton
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Stephen B Tatter
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
| | - Jimmy Ruiz
- Department of Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, NC 27157, United States; W.G. (Bill) Hefner Veteran Administration Medical Center, Cancer Center, Salisbury, NC, 28144, United States
| | - Michael D Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, United States
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21
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Ji X, Zhuang Y, Yin X, Zhan Q, Zhou X, Liang X. Survival time following resection of intracranial metastases from NSCLC-development and validation of a novel nomogram. BMC Cancer 2017; 17:774. [PMID: 29157203 PMCID: PMC5697061 DOI: 10.1186/s12885-017-3763-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 11/08/2017] [Indexed: 01/21/2023] Open
Abstract
Background Brain metastases (BM) from non-small cell lung cancer (NSCLC) are the most frequent intracranial tumors. To identify patients who might benefit from intracranial surgery, we compared the six existing prognostic indexes(PIs) and built a nomogram to predict the survival for NSCLC with BM before they intended to receive total intracranial resection in China. Methods First, clinical data of NSCLC presenting with BM were retrospectively reviewed. All of the patients had received total intracranial resection and were randomly distributed to developing cohort and validation cohort by 2:1. Second, we stratified the cohort using a recursive partitioning analysis(RPA), a score index for radiosurgery (SIR), a basic score for BM (BS-BM), a Golden Grading System (GGS), a disease-specific graded prognostic assessment (DS-GPA) and by NSCLC-RADES. The predictive power of the six PIs was assessed using the Kaplan–Meier method and the log-rank test. Third, univariate and multivariate analysis were explored, and the nomogram predicting survival of BMs from NSCLC was constructed using R 3.2.3 software. The concordance index (C-index) was calculated to evaluate the discriminatory power of the nomogram in the developing cohort and validation cohort. Results BS-BM could better predict survival of patients before intracranial surgery compared with other PIs. In the final multivariate analysis, KPS at diagnosis of BM, metachronous or synchronous BM and the histology of lung cancer appeared to be the independent prognostic predictors for survival. The C-index in the developing cohort and validation cohort were 0.75 and 0.71 respectively, which was better than the C-index of the other six PIs. Conclusions The new nomogram is a promising tool in further choosing the candidates for intracranial surgery among NSCLC with BM and in helping physicians tailor suitable treatment options before operation in clinical practice.
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Affiliation(s)
- Xiaoyu Ji
- Department of oncology, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Yingjie Zhuang
- Company 4, Battalion 1, Cadet Brigade 1, Fourth Military Medical University, Xi'an, 710032, China
| | - Xiangye Yin
- Company 4, Battalion 1, Cadet Brigade 1, Fourth Military Medical University, Xi'an, 710032, China
| | - Qiong Zhan
- Department of oncology, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Xinli Zhou
- Department of oncology, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Xiaohua Liang
- Department of oncology, Huashan Hospital Fudan University, Shanghai, 200040, China.
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22
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Ayala-Peacock DN, Attia A, Braunstein SE, Ahluwalia MS, Hepel J, Chung C, Contessa J, McTyre E, Peiffer AM, Lucas JT, Isom S, Pajewski NM, Kotecha R, Stavas MJ, Page BR, Kleinberg L, Shen C, Taylor RB, Onyeuku NE, Hyde AT, Gorovets D, Chao ST, Corso C, Ruiz J, Watabe K, Tatter SB, Zadeh G, Chiang VLS, Fiveash JB, Chan MD. Prediction of new brain metastases after radiosurgery: validation and analysis of performance of a multi-institutional nomogram. J Neurooncol 2017; 135:403-411. [PMID: 28828698 DOI: 10.1007/s11060-017-2588-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 07/23/2017] [Indexed: 11/27/2022]
Abstract
Stereotactic radiosurgery (SRS) without whole brain radiotherapy (WBRT) for brain metastases can avoid WBRT toxicities, but with risk of subsequent distant brain failure (DBF). Sole use of number of metastases to triage patients may be an unrefined method. Data on 1354 patients treated with SRS monotherapy from 2000 to 2013 for new brain metastases was collected across eight academic centers. The cohort was divided into training and validation datasets and a prognostic model was developed for time to DBF. We then evaluated the discrimination and calibration of the model within the validation dataset, and confirmed its performance with an independent contemporary cohort. Number of metastases (≥8, HR 3.53 p = 0.0001), minimum margin dose (HR 1.07 p = 0.0033), and melanoma histology (HR 1.45, p = 0.0187) were associated with DBF. A prognostic index derived from the training dataset exhibited ability to discriminate patients' DBF risk within the validation dataset (c-index = 0.631) and Heller's explained relative risk (HERR) = 0.173 (SE = 0.048). Absolute number of metastases was evaluated for its ability to predict DBF in the derivation and validation datasets, and was inferior to the nomogram. A nomogram high-risk threshold yielding a 2.1-fold increased need for early WBRT was identified. Nomogram values also correlated to number of brain metastases at time of failure (r = 0.38, p < 0.0001). We present a multi-institutionally validated prognostic model and nomogram to predict risk of DBF and guide risk-stratification of patients who are appropriate candidates for radiosurgery versus upfront WBRT.
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Affiliation(s)
- Diandra N Ayala-Peacock
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, USA.
- Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN, USA.
| | - Albert Attia
- Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Steve E Braunstein
- Department of Radiation Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Manmeet S Ahluwalia
- Brain Tumor and Neuro-Oncology Center, Neurological Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Jaroslaw Hepel
- Department of Radiation Oncology, Brown University Alpert Medical School, Providence, RI, USA
| | - Caroline Chung
- Department of Radiation Oncology, Princess Margaret Cancer Center, Toronto, ON, Canada
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX, USA
| | - Joseph Contessa
- Department of Therapeutic Radiology/Radiation Oncology, Yale University School of Medicine, New Haven, CT, USA
| | - Emory McTyre
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Ann M Peiffer
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - John T Lucas
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Scott Isom
- Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Nicholas M Pajewski
- Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Rupesh Kotecha
- Brain Tumor and Neuro-Oncology Center, Neurological Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Mark J Stavas
- Department of Radiation Oncology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Brandi R Page
- Department of Radiation Oncology, Johns Hopkins University, Baltimore, MD, USA
| | - Lawrence Kleinberg
- Department of Radiation Oncology, Johns Hopkins University, Baltimore, MD, USA
| | - Colette Shen
- Department of Radiation Oncology, Johns Hopkins University, Baltimore, MD, USA
| | - Robert B Taylor
- Department of Radiation Oncology, University of Alabama-Birmingham, Birmingham, AL, USA
| | - Nasarachi E Onyeuku
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Andrew T Hyde
- Department of Radiation Oncology, University of Alabama-Birmingham, Birmingham, AL, USA
| | - Daniel Gorovets
- Department of Radiation Oncology, Brown University Alpert Medical School, Providence, RI, USA
| | - Samuel T Chao
- Brain Tumor and Neuro-Oncology Center, Neurological Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Christopher Corso
- Department of Therapeutic Radiology/Radiation Oncology, Yale University School of Medicine, New Haven, CT, USA
| | - Jimmy Ruiz
- Department of Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Kounosuke Watabe
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Stephen B Tatter
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Gelareh Zadeh
- Division of Neurosurgery, University of Toronto, Toronto, ON, Canada
| | - Veronica L S Chiang
- Department of Therapeutic Radiology/Radiation Oncology, Yale University School of Medicine, New Haven, CT, USA
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - John B Fiveash
- Department of Radiation Oncology, University of Alabama-Birmingham, Birmingham, AL, USA
| | - Michael D Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Examination of the predictive factors of the response to whole brain radiotherapy for brain metastases from lung cancer using MRI. Oncol Lett 2017; 14:1073-1079. [PMID: 28693276 DOI: 10.3892/ol.2017.6264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 03/09/2017] [Indexed: 11/05/2022] Open
Abstract
Previous studies have been conducted on the prognostic factors for overall survival in patients with brain metastases (BMs) following whole brain radiotherapy (WBRT). However, there have been a small number of studies regarding the prognostic factors for the response of tumor to WBRT. The aim of the present study was to identify the predictive factors for the response to WBRT from the point of view of reduction of tumor using magnetic resonance imaging. A retrospective analysis of 62 patients with BMs from primary lung cancer treated with WBRT was undertaken. The effects of the following factors on the response to WBRT were evaluated: Age; sex; performance status; lactate dehydrogenase; pathology; existence of extracranial metastases; activity of extracranial disease; chemo-history; chest radiotherapy history; treatment term; γ-knife radiotherapy; diffusion weighted image signal intensity; tumor diameter; extent of edema and the edema/tumor (E/T) ratio. The association between the reduction of tumors and clinical factors was evaluated using logistic regression analysis. P<0.05 was considered to indicate a statistically significant difference. The overall response ratio of this cohort was 54.8%. In the univariate analysis, the response of tumors was associated with the presence of small cell lung carcinoma (SCLC; P=0.0007), an E/T ratio of ≥1.5 (P=0.048), and a median tumor diameter of <20 mm (P=0.014). In the multivariate analysis, the presence of SCLC [P=0.001; odds ratio (OR), 17.152), an E/T ratio of ≥1.5 (P=0.019; OR, 9.526), and the presence of extracranial metastases (P=0.031; OR, 4.875) were revealed to be independent predictive factors for the reduction of tumor. The following 3 factors were significantly associated with the response of tumors to WBRT: The presence of SCLC; an E/T ratio of ≥1.5; and the presence of extracranial metastases. The E/T ratio is a novel index that provides a simple and easy predictive method for use in a clinical setting.
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Farris M, McTyre ER, Cramer CK, Hughes R, Randolph DM, Ayala-Peacock DN, Bourland JD, Ruiz J, Watabe K, Laxton AW, Tatter SB, Zhou X, Chan MD. Brain Metastasis Velocity: A Novel Prognostic Metric Predictive of Overall Survival and Freedom From Whole-Brain Radiation Therapy After Distant Brain Failure Following Upfront Radiosurgery Alone. Int J Radiat Oncol Biol Phys 2017; 98:131-141. [DOI: 10.1016/j.ijrobp.2017.01.201] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 01/12/2017] [Accepted: 01/17/2017] [Indexed: 10/20/2022]
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25
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Shenker RF, McTyre ER, Ruiz J, Weaver KE, Cramer C, Alphonse-Sullivan NK, Farris M, Petty WJ, Bonomi MR, Watabe K, Laxton AW, Tatter SB, Warren GW, Chan MD. The Effects of smoking status and smoking history on patients with brain metastases from lung cancer. Cancer Med 2017; 6:944-952. [PMID: 28401684 PMCID: PMC5430088 DOI: 10.1002/cam4.1058] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 02/20/2017] [Accepted: 02/21/2017] [Indexed: 01/10/2023] Open
Abstract
There is limited data on the effects of smoking on lung cancer patients with brain metastases. This single institution retrospective study of patients with brain metastases from lung cancer who received stereotactic radiosurgery assessed whether smoking history is associated with overall survival, local control, rate of new brain metastases (brain metastasis velocity), and likelihood of neurologic death after brain metastases. Patients were stratified by adenocarcinoma versus nonadenocarcinoma histologies. Kaplan-Meier analysis was performed for survival endpoints. Competing risk analysis was performed for neurologic death analysis to account for risk of nonneurologic death. Separate linear regression and multivariate analyses were performed to estimate the brain metastasis velocity. Of 366 patients included in the analysis, the median age was 63, 54% were male and, 60% were diagnosed with adenocarcinoma. Current smoking was reported by 37% and 91% had a smoking history. Current smoking status and pack-year history of smoking had no effect on overall survival. There was a trend for an increased risk of neurologic death in nonadenocarcinoma patients who continued to smoke (14%, 35%, and 46% at 6/12/24 months) compared with patients who did not smoke (12%, 23%, and 30%, P = 0.053). Cumulative pack years smoking was associated with an increase in neurologic death for nonadenocarcinoma patients (HR = 1.01, CI: 1.00-1.02, P = 0.046). Increased pack-year history increased brain metastasis velocity in multivariate analysis for overall patients (P = 0.026). Current smokers with nonadenocarcinoma lung cancers had a trend toward greater neurologic death than nonsmokers. Cumulative pack years smoking is associated with a greater brain metastasis velocity.
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Affiliation(s)
- Rachel F Shenker
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Emory R McTyre
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Jimmy Ruiz
- Department of Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Kathryn E Weaver
- Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Christina Cramer
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | | | - Michael Farris
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - William J Petty
- Department of Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Marcelo R Bonomi
- Department of Medicine (Hematology & Oncology), Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Kounosuke Watabe
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Adrian W Laxton
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Stephen B Tatter
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
| | - Graham W Warren
- Department of Radiation Oncology, Medical College of South Carolina, Charleston, 29425, South Carolina.,Department of Cell and Molecular Pharmacology, MUSC, Charleston, 29425, South Carolina
| | - Michael D Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, 27157, North Carolina
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26
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Page BR, Wang EC, White L, McTyre E, Peiffer A, Alistar A, Mu F, Loganathan A, Bourland JD, Laxton AW, Tatter SB, Chan MD. Gamma Knife radiosurgery for brain metastases from gastrointestinal primary. J Med Imaging Radiat Oncol 2017; 61:522-527. [PMID: 28139076 DOI: 10.1111/1754-9485.12584] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 12/11/2016] [Indexed: 11/29/2022]
Abstract
INTRODUCTION In this study, we assessed clinical outcomes of patients with brain metastases from a gastrointestinal (GI) primary cancer and patterns of failure after stereotactic radiosurgery including failure within the radiosurgical volume, distant failure and leptomeningeal failure (LMF). We also assessed other factors associated with the patients' neurologic and extraneuraxial disease that may affect clinical outcomes. METHODS We reviewed our institutional series of 62 consecutive patients with brain metastases treated with stereotactic radiosurgery, which included 17 patients with oesophageal, 44 patients with colorectal and one patient with anal canal primary. The median marginal dose to the radiosurgery volume was 17 Gy (range 10-24 Gy). Thirteen patients were treated with whole-brain radiotherapy (WBRT) prior to GKS. RESULTS The median dose delivered to the margin of the tumour was 17 Gy (range: 10-24 Gy). The median largest tumour diameter was 2.7 cm (range: 0.60-6.1 cm). The median overall survival (OS) was 7.1 months with a median follow-up of 6.1 months and a range of 0-31.7 months. Freedom from local failure was 86.5% and 62.2% at 6 and 12 months respectively. Freedom from distant failure was 73.2% and 42.2% at 6 and 12 months, respectively, and 40% of patients died of neurologic death. LMF occurred in seven patients, all of whom had colorectal primaries. Multivariate analysis revealed that craniotomy for resection of brain metastasis (HR = 2.63, P < 0.02), an absence of extracranial disease (HR = 2.28, P < 0.03), and prolonged time to distant brain failure (HR = 2.85, P < 0.01) predicted for improved survival. CONCLUSIONS Colorectal cancer metastases tend to have a higher rate of leptomeningeal failure than other types of GI cancer metastases. Radiosurgical management of brain metastases from GI primary represents an acceptable management option. Neurologic death remains problematic.
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Affiliation(s)
- Brandi R Page
- Department of Radiation Oncology and Molecular Sciences, Johns Hopkins University, Baltimore, Maryland, USA
| | - Edina C Wang
- Department of Radiation Oncology, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Lance White
- Department of Neurosurgery, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Emory McTyre
- Department of Radiation Oncology, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Ann Peiffer
- Department of Radiation Oncology, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA.,Brain Tumor Center of Excellence, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Angela Alistar
- Division of Hematology and Oncology, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Frank Mu
- Department of Radiation Oncology, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA
| | | | - John Daniel Bourland
- Department of Radiation Oncology, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA.,Brain Tumor Center of Excellence, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Adrian W Laxton
- Department of Neurosurgery, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA
| | - Stephen B Tatter
- Department of Neurosurgery, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA.,Brain Tumor Center of Excellence, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Michael D Chan
- Department of Radiation Oncology, Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, USA.,Brain Tumor Center of Excellence, Wake Forest University, Winston-Salem, North Carolina, USA
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Na YC, Jung HH, Kim HR, Cho BC, Chang JW, Park YG, Chang WS. Predictive factors of early distant brain failure after gamma knife radiosurgery alone in patients with brain metastases of non-small-cell lung cancer. J Neurooncol 2017; 132:333-340. [PMID: 28074321 DOI: 10.1007/s11060-017-2373-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 01/03/2017] [Indexed: 01/23/2023]
Abstract
The objective of this study was to elucidate the predictive factors for early distant brain failure in patients with brain metastases of non-small-cell lung cancer (NSCLC) who were treated with gamma knife radiosurgery (GKRS) without previous whole-brain radiotherapy (WBRT) or surgery. We retrospectively reviewed clinical and imaging data of 459 patients with brain metastases of NSCLC who underwent GKRS from June 2008 to December 2013. The primary end-point was early distant brain failure, defined as the detection of newly developed metastatic lesions on magnetic resonance imaging (MRI) 3 months after GKRS. Factors such as tumor pathology subtype, concurrent systemic chemotherapy, epidermal growth factor receptor (EGFR) mutation status, use of EGFR tyrosine kinase inhibitors (TKIs), systemic disease status, presence of a metastatic lesion only in delayed MRI, and volume and number of metastases were analyzed. There were no statistically significant differences with respect to pathologic subtype, concurrent systemic chemotherapy, EGFR mutation, and early distant brain failure. Patients treated with EGFR-TKIs (p = 0.004), with a stable systemic disease status (p = 0.028) and 3 or fewer brain lesions (p = 0.000) experienced a significantly lower incidence of early distant brain failure. This study suggests that GKRS alone could be considered for patients treated with EGFR-TKIs who have a stable systemic disease status and 3 or fewer brain lesions. WBRT should be considered for other patients.
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Affiliation(s)
- Young Cheol Na
- Department of Neurosurgery, Institute for Integrative medicine, Catholic Kwandong University College of Medicine, International St Mary's Hospital, Incheon, South Korea
| | - Hyun Ho Jung
- Department of Neurosurgery, Brain Research Institute, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Hye Ryun Kim
- Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Byoung Chul Cho
- Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Jin Woo Chang
- Department of Neurosurgery, Brain Research Institute, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Yong Gou Park
- Department of Neurosurgery, Brain Research Institute, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, South Korea
| | - Won Seok Chang
- Department of Neurosurgery, Brain Research Institute, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, South Korea.
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Johnston H, McTyre ER, Cramer CK, Lesser GJ, Ruiz J, Bourland JD, Watabe K, Lo HW, Qasem S, Laxton AW, Tatter SB, Chan MD. Stereotactic radiosurgery in the treatment of brain metastases from gynecologic primary cancer. JOURNAL OF RADIOSURGERY AND SBRT 2017; 5:55-61. [PMID: 29296463 PMCID: PMC5675508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 05/08/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Brain metastases from gynecologic primary cancers are rare events, but they can be a cause of morbidity and mortality when they occur. METHODS This is a single institution retrospective study on patients with brain metastases from gynecologic primary cancer who received Gamma Knife stereotactic radiosurgery (SRS). Between 2000 and 2013, a total of 33 patients with brain metastases from gynecologic primary including cervical (n=2), endometrial (n=6) and ovarian cancers (n=25) were treated with SRS at our institution. Electronic medical records were reviewed to determine survival, patterns of failure and cause of death. RESULTS Overall survival at 1, 2 and 5 years for the entire population was 47.1%, 21.7%, and 14.5%, respectively. There was no difference in survival between the primary cancers (log-rank p = 0.33). 36.4% patients died of neurologic death. Local failure at 1 and 2 years for the entire population was 10.4% and 14.3%, respectively. There was no difference in local failure between the primary cancers. Distant brain failure at 1, 2 and 5 years for the entire population was 20.6%, 27.7%, and 31.3%, respectively. On multivariate Cox Proportional Hazards analysis, age was the only predictor of overall survival (HR = 1.03, p = 0.01). Ovarian cancer patients had decreased risk of distant brain failure (HR = 0.17, p=0.005), whereas cervical cancer patients had an increased risk of distant brain failure (HR = 35.7, p = 0.001). CONCLUSIONS SRS represents a feasible treatment option for patients with brain metastases from gynecologic cancer. Younger age is a positive prognostic factor. Ovarian cancer patients have lower risk of distant brain failure.
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Affiliation(s)
- Hannah Johnston
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Emory R. McTyre
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Cristina K. Cramer
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Glenn J. Lesser
- Department of Medicine (Hematology and Oncology), Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Jimmy Ruiz
- Department of Medicine (Hematology and Oncology), Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - J. Daniel Bourland
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Kounosuke Watabe
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Hui-Wen Lo
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Shadi Qasem
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Adrian W. Laxton
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Stephen B. Tatter
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Michael D. Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
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Ma LH, Li G, Zhang HW, Wang ZY, Dang J, Zhang S, Yao L. The effect of non-small cell lung cancer histology on survival as measured by the graded prognostic assessment in patients with brain metastases treated by hypofractionated stereotactic radiotherapy. Radiat Oncol 2016; 11:92. [PMID: 27411944 PMCID: PMC4944239 DOI: 10.1186/s13014-016-0667-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 07/12/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The purpose of this study was to investigate the impact of histology on survival stratified by the Graded Prognostic Assessment (GPA) for non-small cell lung cancer (NSCLC) in a group of selected patients treated recently. METHODS A total of 171 NSCLC patients with brain metastases treated by hypofractionated stereotactic radiotherapy with or without whole-brain radiotherapy between 2001 and 2011 were included. The GPA score was calculated for each patient. Tumor histologies were categorized into adenocarcinoma (ADCA) and non-ADCA. Median survival time (MST, in months) was calculated using the Kaplan-Meier method. The log-rank test was used to determine statistical differences. RESULTS MSTs by histology were: ADCA 15 (n = 92) and non-ADCA 10 (n = 79) (p < 0.001). For all patients, the MSTs by GPA score were: GPA 3.5-4, 24; GPA 2.5-3, 15; GPA 1.5-2, 9 and GPA 0-1, 6 (p < 0.001). The histology of ADCA showed a statistically significant higher MST than non-ADCA for patients with GPA 2.5-4. For GPA 2.5-3, MSTs were: ADCA 18, non-ADCA 10 (p = 0.007); for GPA 3.5-4, MSTs were: ADCA 30, non-ADCA 17 (p = 0.046). For GPA 0-2, MSTs did not differ significantly by histology. For GPA 0-1, MSTs were: ADCA 8, non-ADCA 4 (p = 0.146); GPA 1.5-2, MSTs were: ADCA 10, non-ADCA 8 (p = 0.291). We further found that non-ADCA in upper GPA class (3.5-4) had similar survival with ADCA in lower GPA class (2.5-3) (MSTs were 17 and 18, respectively, p = 0.775). This phenomenon also happened between patients of non-ADCA in upper GPA class (2.5-3) and those of ADCA in lower GPA class (1.5-2) (MSTs were both 10, p = 0.724). CONCLUSIONS We confirmed that the histology of NSCLC had effect on the GPA in these selected patients treated recently. ADCA showed a statistically significant higher MST than non-ADCA with GPA 2.5-4. The non-ADCA in upper GPA classes (3.5-4 and 2.5-3) had similar survival to ADCA in lower GPA classes (2.5-3 and 1.5-2, respectively). The histology as a new factor should be added to the original GPA for NSCLC.
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Affiliation(s)
- Liang-Hua Ma
- Department of Radiation Oncology, The First Affiliated Hospital of China Medical University, 155 North Nanjing Street, Heping District, Shenyang, 110001, Liaoning, China
| | - Guang Li
- Department of Radiation Oncology, The First Affiliated Hospital of China Medical University, 155 North Nanjing Street, Heping District, Shenyang, 110001, Liaoning, China.
| | - Hong-Wei Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of China Medical University, 155 North Nanjing Street, Heping District, Shenyang, 110001, Liaoning, China
| | - Zhi-Yu Wang
- Department of Radiation Oncology, The First Affiliated Hospital of China Medical University, 155 North Nanjing Street, Heping District, Shenyang, 110001, Liaoning, China
| | - Jun Dang
- Department of Radiation Oncology, The First Affiliated Hospital of China Medical University, 155 North Nanjing Street, Heping District, Shenyang, 110001, Liaoning, China
| | - Shuo Zhang
- Department of Radiation Oncology, The First Affiliated Hospital of China Medical University, 155 North Nanjing Street, Heping District, Shenyang, 110001, Liaoning, China
| | - Lei Yao
- Department of Radiation Oncology, The First Affiliated Hospital of China Medical University, 155 North Nanjing Street, Heping District, Shenyang, 110001, Liaoning, China
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Kotecha R, Zimmerman A, Murphy ES, Ahmed Z, Ahluwalia MS, Suh JH, Reddy CA, Angelov L, Vogelbaum MA, Barnett GH, Chao ST. Management of Brain Metastasis in Patients With Pulmonary Neuroendocrine Carcinomas. Technol Cancer Res Treat 2016; 15:566-72. [DOI: 10.1177/1533034615589033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 05/06/2015] [Indexed: 01/01/2023] Open
Abstract
Background: The patterns of intracranial failure in patients with brain metastasis from pulmonary neuroendocrine carcinoma (PNEC) remain unknown. Methods: From 1998 to 2013, 29 patients with the diagnosis of PNEC were treated for brain metastasis: 16 patients (55%) underwent whole-brain radiation therapy (WBRT), 5 (17%) patients underwent WBRT with a stereotactic radiosurgery (SRS) boost, and 8 (28%) patients underwent primary SRS alone. Results: The median age at treatment was 61 years (range: 44-84 years) and the median follow-up was 9.6 months (0-157.4 months). Of the patients treated with SRS alone, 1 patient had radiographic local progression of disease and 1 patient had a distant intracranial failure. Of the patients treated with WBRT with or without an SRS boost, 9 patients developed intracranial progression, including 1 local failure. No differences in rates of intracranial progression or local failure between the 2 groups ( P = .94 and P = .44, respectively) were observed. The actuarial rates of distant intracranial failure at 12 months were 32.9% (95% confidence interval [95% CI] 8.9%-56.8%) and 25% (95% CI 0.0%-67.4%) in patients undergoing primary WBRT or SRS, respectively ( P = .31). The median overall survival was 15.8 months in patients treated with WBRT and 20.4 months in patients treated with primary SRS ( P = .78). Conclusion: Patients with brain metastasis from PNECs can be effectively treated with either WBRT or SRS alone, with a pattern of failure more consistent with non-small cell lung cancer than small cell lung cancer. In this series, there was not a statistically significant increased risk of distant intracranial failure when patients were treated with primary SRS.
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Affiliation(s)
- Rupesh Kotecha
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Amy Zimmerman
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Erin S. Murphy
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA
| | - Zain Ahmed
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Manmeet S. Ahluwalia
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA
- Department of Hematology and Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - John H. Suh
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA
| | - Chandana A. Reddy
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Lilyana Angelov
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA
- Department of Neurosurgery, Cleveland Clinic, Cleveland, OH, USA
| | - Michael A. Vogelbaum
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA
- Department of Neurosurgery, Cleveland Clinic, Cleveland, OH, USA
| | - Gene H. Barnett
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA
- Department of Neurosurgery, Cleveland Clinic, Cleveland, OH, USA
| | - Samuel T. Chao
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, OH, USA
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Kaul D, Angelidis A, Budach V, Ghadjar P, Kufeld M, Badakhshi H. Prognostic indices in stereotactic radiotherapy of brain metastases of non-small cell lung cancer. Radiat Oncol 2015; 10:244. [PMID: 26611493 PMCID: PMC4661968 DOI: 10.1186/s13014-015-0550-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/18/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Our purpose was to analyze the long-term clinical outcome and to identify prognostic factors after Linac-based stereotactic radiosurgery (SRS) or fractionated stereotactic radiotherapy (FSRT) on patients with brain metastases (BM) from non-small cell lung cancer (NSCLC). MATERIALS AND METHODS We performed a retrospective analysis of survival on 90 patients who underwent SRS or FSRT of intracranial NSCLC metastases between 04/2004 and 05/2014 that had not undergone prior surgery or whole brain radiotherapy (WBRT) for BM. Follow-up data was analyzed until May 2015. Potential prognostic factors were examined in univariable and multivariable analyses. The Golden Grading System (GGS), the disease-specific graded prognostic assessment (DS-GPA), the RADES II prognostic index as well as the NSCLC-specific index proposed by Rades et al. in 2013 (NSCLC-RADES) were calculated and their predictive values were tested in univariable analysis. RESULTS The median follow-up time of the surviving patients was 14 months. The overall survival (OS) rate was 51 % after 6 months and 29.9 % after 12 months. Statistically significant factors of better OS after univariable analysis were lower International Union Against Cancer (UICC) stage at first diagnosis, histology of adenocarcinoma, prior surgery of the primary tumor and lower total BM volume. After multivariable analysis adenocarcinoma histology remained a significant factor; higher Karnofsky Performance Score (KPS) and the presence of extracranial metastases (ECM) were also significant. The RADES II and the NSCLC-RADES indices were significant predictors of OS. However, the NSCLC-RADES failed to differentiate between intermediate- and low-risk patients. The DS-GPA and GGS were not statistically significant predictors of survival in univariable analysis. CONCLUSION The ideal prognostic index has not been defined yet. We believe that more specific indices will be developed in the future. Our results indicate that the histologic subtype of NSCLC could add to the prognostic value of specialized future indices. The RADES II index had the highest predictive value in the examined patient cohort.
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Affiliation(s)
- David Kaul
- Department of Radiation Oncology, Charité School of Medicine and University Hospital, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Alexander Angelidis
- Department of Radiation Oncology, Charité School of Medicine and University Hospital, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Volker Budach
- Department of Radiation Oncology, Charité School of Medicine and University Hospital, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Pirus Ghadjar
- Department of Radiation Oncology, Charité School of Medicine and University Hospital, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Markus Kufeld
- Charité CyberKnife Center, Charité School of Medicine and University Hospital, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Harun Badakhshi
- Department of Radiation Oncology, Charité School of Medicine and University Hospital, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany.
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Lucas JT, Colmer HG, White L, Fitzgerald N, Isom S, Bourland JD, Laxton AW, Tatter SB, Chan MD. Competing Risk Analysis of Neurologic versus Nonneurologic Death in Patients Undergoing Radiosurgical Salvage After Whole-Brain Radiation Therapy Failure: Who Actually Dies of Their Brain Metastases? Int J Radiat Oncol Biol Phys 2015; 92:1008-1015. [PMID: 26050609 PMCID: PMC4544707 DOI: 10.1016/j.ijrobp.2015.04.032] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 04/14/2015] [Accepted: 04/17/2015] [Indexed: 12/25/2022]
Abstract
PURPOSE To estimate the hazard for neurologic (central nervous system, CNS) and nonneurologic (non-CNS) death associated with patient, treatment, and systemic disease status in patients receiving stereotactic radiosurgery after whole-brain radiation therapy (WBRT) failure, using a competing risk model. PATIENTS AND METHODS Of 757 patients, 293 experienced recurrence or new metastasis following WBRT. Univariate Cox proportional hazards regression identified covariates for consideration in the multivariate model. Competing risks multivariable regression was performed to estimate the adjusted hazard ratio (aHR) and 95% confidence interval (CI) for both CNS and non-CNS death after adjusting for patient, disease, and treatment factors. The resultant model was converted into an online calculator for ease of clinical use. RESULTS The cumulative incidence of CNS and non-CNS death at 6 and 12 months was 20.6% and 21.6%, and 34.4% and 35%, respectively. Patients with melanoma histology (relative to breast) (aHR 2.7, 95% CI 1.5-5.0), brainstem location (aHR 2.1, 95% CI 1.3-3.5), and number of metastases (aHR 1.09, 95% CI 1.04-1.2) had increased aHR for CNS death. Progressive systemic disease (aHR 0.55, 95% CI 0.4-0.8) and increasing lowest margin dose (aHR 0.97, 95% CI 0.9-0.99) were protective against CNS death. Patients with lung histology (aHR 1.3, 95% CI 1.1-1.9) and progressive systemic disease (aHR 2.14, 95% CI 1.5-3.0) had increased aHR for non-CNS death. CONCLUSION Our nomogram provides individual estimates of neurologic death after salvage stereotactic radiosurgery for patients who have failed prior WBRT, based on histology, neuroanatomical location, age, lowest margin dose, and number of metastases after adjusting for their competing risk of death from other causes.
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Affiliation(s)
- John T Lucas
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina.
| | - Hentry G Colmer
- Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Lance White
- Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Nora Fitzgerald
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Scott Isom
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - John D Bourland
- Department of Radiation Oncology, Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
| | - Adrian W Laxton
- Department of Neurosurgery, Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
| | - Stephen B Tatter
- Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina
| | - Michael D Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina
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Davey P, Ennis M, Aviv R. Prophylactic cranial irradiation (PCI). Still a no-brainer? Lung Cancer 2015; 89:4-7. [DOI: 10.1016/j.lungcan.2015.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 03/30/2015] [Accepted: 04/20/2015] [Indexed: 11/24/2022]
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35
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KOSTOPOULOS S, KONSTANDINOU C, SIDIROPOULOS K, RAVAZOULA P, KALATZIS I, ASVESTAS P, CAVOURAS D, GLOTSOS D. Assessing the performance of four different categories of histological criteria in brain tumours grading by means of a computer-aided diagnosis image analysis system. J Microsc 2015; 260:37-46. [DOI: 10.1111/jmi.12264] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 04/13/2015] [Indexed: 11/29/2022]
Affiliation(s)
- S. KOSTOPOULOS
- Medical Image and Signal Processing Laboratory; Department of Biomedical Engineering, Technological Educational Institute of Athens; 12210 Egaleo Athens Greece
| | - C. KONSTANDINOU
- Department of Medical Physics; University of Patras; 26504 Rio Patras Greece
| | - K. SIDIROPOULOS
- School of Engineering and Design; Brunel University West London; Uxbridge Middlesex UB8 3PH United Kingdom
| | - P. RAVAZOULA
- Department of Pathology; University Hospital of Patras; 26504 Rio Patras Greece
| | - I. KALATZIS
- Medical Image and Signal Processing Laboratory; Department of Biomedical Engineering, Technological Educational Institute of Athens; 12210 Egaleo Athens Greece
| | - P. ASVESTAS
- Medical Image and Signal Processing Laboratory; Department of Biomedical Engineering, Technological Educational Institute of Athens; 12210 Egaleo Athens Greece
| | - D. CAVOURAS
- Medical Image and Signal Processing Laboratory; Department of Biomedical Engineering, Technological Educational Institute of Athens; 12210 Egaleo Athens Greece
| | - D. GLOTSOS
- Medical Image and Signal Processing Laboratory; Department of Biomedical Engineering, Technological Educational Institute of Athens; 12210 Egaleo Athens Greece
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Bowden G, Kano H, Caparosa E, Park SH, Niranjan A, Flickinger J, Lunsford LD. Gamma Knife radiosurgery for the management of cerebral metastases from non–small cell lung cancer. J Neurosurg 2015; 122:766-72. [DOI: 10.3171/2014.12.jns141111] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT
Non–small cell lung cancer (NSCLC) is the most frequent cancer that metastasizes to brain. Stereotactic radiosurgery (SRS) has become the management of choice for most patients with such metastatic tumors. Therefore, the authors endeavored to elucidate the survival and SRS outcomes for patients with NSCLC metastasis at their center.
METHODS
In this single-institution retrospective analysis, the authors reviewed their experience with NSCLC metastasis during a 10-year period from 2001 to 2010. Seven hundred twenty patients underwent Gamma Knife radiosurgery. A total of 1004 SRS procedures were performed, and 3143 tumors were treated. The NSCLC subtype was adenocarcinoma in 386 patients, squamous cell carcinoma in 111 patients, and large cell carcinoma in 34 patients. The median aggregate tumor volume was 4.5 cm3 (range 0.1–88 cm3).
RESULTS
The median survival time after diagnosis of brain metastasis from NSCLC was 12.6 months, and the median survival after SRS was 8.5 months. The 1-, 2-, and 5-year survival rates after SRS were 39%, 21%, and 10%, respectively. Postradiosurgery survival was decreased in patients treated with prior whole-brain radiation therapy compared with SRS alone (p = 0.003). Aggregate tumor volume was inversely related to survival after SRS (p < 0.001), and the histological subgroups demonstrated significant survival differences (p = 0.023). The overall local tumor control rate in the entire group was 92.8%. One hundred seventy-four patients (24%) underwent repeat SRS for new or resistant metastatic deposits.
CONCLUSIONS
Stereotactic radiosurgery is an effective means of providing local control for NSCLC metastases. Neurological function and survival benefit from serial patient monitoring and repeat SRS for new tumors.
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Affiliation(s)
- Greg Bowden
- Departments of 1Neurological Surgery and
- 3Center for Image-Guided Neurosurgery,
- 5Department of Neurological Surgery, University of Western Ontario, London, Ontario, Canada
| | - Hideyuki Kano
- Departments of 1Neurological Surgery and
- 3Center for Image-Guided Neurosurgery,
| | - Ellen Caparosa
- 4University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; and
| | - Seong-Hyun Park
- Departments of 1Neurological Surgery and
- 3Center for Image-Guided Neurosurgery,
| | - Ajay Niranjan
- Departments of 1Neurological Surgery and
- 3Center for Image-Guided Neurosurgery,
| | - John Flickinger
- 2Radiation Oncology, and
- 3Center for Image-Guided Neurosurgery,
| | - L. Dade Lunsford
- Departments of 1Neurological Surgery and
- 3Center for Image-Guided Neurosurgery,
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Tumor resection with carmustine wafer placement as salvage therapy after local failure of radiosurgery for brain metastasis. J Clin Neurosci 2015; 22:561-5. [PMID: 25560387 PMCID: PMC10373436 DOI: 10.1016/j.jocn.2014.08.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Revised: 08/14/2014] [Accepted: 08/16/2014] [Indexed: 11/17/2022]
Abstract
Prolonged survival in brain metastasis patients increases recurrence rates and places added importance on salvage therapies. Research examining carmustine polymer wafers as an adjuvant therapy for brain metastasis is limited. We present a single institution retrospective series documenting the use of BCNU wafers placed in the cavity of resected recurrent brain metastases that had failed prior stereotactic radiosurgery (SRS). Between February 2002 and April 2013, a total of 31 patients with brain metastases failed SRS and underwent resection with intracavitary placement of carmustine wafers. Clinical outcomes including local control, survival, cause of death, and toxicity were determined from electronic medical records. Kaplan-Meier analysis was performed to assess local control and survival. Imaging features were reviewed and described for patients with serial post-operative follow-up imaging examinations over time. Overall survival at 6 months and 12 months was 63% and 36%, respectively. Fourteen of 31 patients (45%) died from neurologic causes. Local control within the resection cavity was 87% and 70% at 6 and 12 months, respectively. Five patients (16%) underwent further salvage therapy following carmustine wafer placement after local failure. Resection cavities of all six patients with follow-up imaging showed linear peripheral enhancement. Pericavity and wafer enhancement was present as early as the same day as surgery and persisted in all cases to 6 months or longer. Carmustine polymer wafers are an effective salvage treatment following resection of a brain metastasis that has failed prior SRS. For patients with successful local control after wafer implantation, linear enhancement at the cavity is common.
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Black PJ, Page BR, Lucas JT, Hughes RT, Laxton AW, Tatter SB, Munley MT, Chan MD. Factors that determine local control with gamma knife radiosurgery: The role of primary histology. JOURNAL OF RADIOSURGERY AND SBRT 2015; 3:281-286. [PMID: 26478823 PMCID: PMC4605606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 04/30/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Stereotactic radiosurgery for the treatment of brain metastases is commonly delivered without regard to primary cancer histology. This study sought to determine if the primary site of origin for brain metastases affected the propensity for local failure. METHODS A total of 83 patients with 200 brain metastases were examined retrospectively for predictors of infield failure. Tumor, patient, and treatment characteristics were analyzed including primary tumor histology, radiosurgical dose and age. Cox proportional hazards models, univariate and multivariate analyses were used to identify predictors of local failure. RESULTS Freedom from local failure for the entire population was 83% and 65% at 6 and 12 months, respectively. Multivariate analysis revealed that breast cancer brain metastases have a significantly lower risk of local failure than melanoma (HR = 0.31, p< 0.001). Additionally, multivariate analysis revealed that increasing dose lowered risk for local failure (HR = 0.87, p<0.001). CONCLUSIONS Melanoma histology leads to a higher rate of local failure. Higher prescription dose results in higher incidence of local control.
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Affiliation(s)
- Paul J. Black
- Department of Radiation Oncology, Wake Forest University, Winston-Salem, NC, USA
| | - Brandi R. Page
- Department of Radiation Oncology, Wake Forest University, Winston-Salem, NC, USA
| | - John T. Lucas
- Department of Radiation Oncology, Wake Forest University, Winston-Salem, NC, USA
| | - Ryan T. Hughes
- School of Medicine, Wake Forest University, Winston-Salem, NC, USA
| | - Adrian W. Laxton
- Department of Neurosurgery, Wake Forest University, Winston-Salem, NC, USA
| | - Stephen B. Tatter
- Department of Neurosurgery, Wake Forest University, Winston-Salem, NC, USA
| | - Michael T. Munley
- Department of Radiation Oncology, Wake Forest University, Winston-Salem, NC, USA
| | - Michael D. Chan
- Department of Radiation Oncology, Wake Forest University, Winston-Salem, NC, USA
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Zairi F, Ouammou Y, Le Rhun E, Aboukais R, Blond S, Vermandel M, Deken V, Devos P, Reyns N. Relevance of gamma knife radiosurgery alone for the treatment of non-small cell lung cancer brain metastases. Clin Neurol Neurosurg 2014; 125:87-93. [DOI: 10.1016/j.clineuro.2014.07.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 07/21/2014] [Indexed: 11/26/2022]
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40
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Berghoff AS, Kovanda AK, Melchardt T, Bartsch R, Hainfellner JA, Sipos B, Schittenhelm J, Zielinski CC, Widhalm G, Dieckmann K, Weller M, Goodman SL, Birner P, Preusser M. αvβ3, αvβ5 and αvβ6 integrins in brain metastases of lung cancer. Clin Exp Metastasis 2014; 31:841-51. [PMID: 25150423 DOI: 10.1007/s10585-014-9675-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 08/13/2014] [Indexed: 11/26/2022]
Abstract
Integrins are transmembranous adhesion molecules postulated to be involved in the brain metastatic cascade. We investigated the correlation of alpha v beta 3 (αvβ3), alpha v beta 5 (αvβ5) and alpha v beta 6 (αvβ6) integrin isoform expression with clinical characteristics including survival times in lung cancer patients with brain metastases (BM). All BM from lung cancer operated at our institution between 1990 and 2011, were identified; where available, primary tumors were retrieved as well. Immunohistochemical analysis for αvβ3, αvβ5 and αvβ6 integrin subunits was performed and correlated with Ki67 and hypoxia-inducible factor (HIF)-1α indexes. Clinical data including survival data were obtained by chart review. 191 BM specimens of 191 patients with histologically confirmed lung cancer (172 non-small cell lung cancer and 19 small cell lung cancer) were included. In 18 patients matched primary tumor samples were available. αvβ6 expression was commonly found on BM tumor cells (103/191; 53.9 %) and showed a significant association with low Ki67 proliferation indices (46 vs. 36 %, p = 0.001, Mann-Whitney U test) and favorable survival times (p = 0.020; log rank test) in patients with non-squamous NSCLC BM. αvβ5 expression was highly expressed on vascular structures (167/191; 87.4 %) and tumor stroma in BM (151/191; 79.1 %) and associated with high HIF-1α indices (60 vs. 90, p = 0.007, Mann-Whitney U test). αvβ3 expression was more frequently found on vascular structures in BM than in primary tumors (68.1 vs. 5.6 %; p = 0.645; Chi square test) and its expression in BM tumor cells correlated with low Ki67 indices (41 vs. 28 %; p = 0.046, Mann-Whitney U test). Expression of αv integrin subunits seem to be of pathobiological and clinical relevance in patients with NSCLC BM. Further investigations of their involvement in the brain metastatic cascade and their role as biomarkers are warranted.
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Lam TC, Sahgal A, Chang EL, Lo SS. Stereotactic radiosurgery for multiple brain metastases. Expert Rev Anticancer Ther 2014; 14:1153-72. [PMID: 25034143 DOI: 10.1586/14737140.2014.940325] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Stereotactic radiosurgery (SRS) alone has become one of the treatment options for patients with 1-4 metastases as the detrimental effects of whole brain radiation therapy on neurocognition and quality of life are becoming well known. Multiple randomized control trials also failed to show overall survival benefit of adding whole brain radiation therapy to SRS. However, the role of SRS in multiple brain metastases, especially those with ≥ 4 tumors, remains controversial. The literature is emerging, and the limited evidence suggests that the local control benefit is independent of the number of metastases, and that patients with more than four brain metastases have similar overall survival compared to those with 2-4 tumors. This review aims at summarizing the current evidence of SRS for multiple brain metastases, divided into limited (2-3) and multiple (≥ 4) lesions. It also reviews the technical aspects and cost-effectiveness of SRS.
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Affiliation(s)
- Tai-Chung Lam
- Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
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Ayala-Peacock DN, Peiffer AM, Lucas JT, Isom S, Kuremsky JG, Urbanic JJ, Bourland JD, Laxton AW, Tatter SB, Shaw EG, Chan MD. A nomogram for predicting distant brain failure in patients treated with gamma knife stereotactic radiosurgery without whole brain radiotherapy. Neuro Oncol 2014; 16:1283-8. [PMID: 24558022 DOI: 10.1093/neuonc/nou018] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND We review our single institution experience to determine predictive factors for early and delayed distant brain failure (DBF) after radiosurgery without whole brain radiotherapy (WBRT) for brain metastases. MATERIALS AND METHODS Between January 2000 and December 2010, a total of 464 patients were treated with Gamma Knife stereotactic radiosurgery (SRS) without WBRT for primary management of newly diagnosed brain metastases. Histology, systemic disease, RPA class, and number of metastases were evaluated as possible predictors of DBF rate. DBF rates were determined by serial MRI. Kaplan-Meier method was used to estimate rate of DBF. Multivariate analysis was performed using Cox Proportional Hazard regression. RESULTS Median number of lesions treated was 1 (range 1-13). Median time to DBF was 4.9 months. Twenty-seven percent of patients ultimately required WBRT with median time to WBRT of 5.6 months. Progressive systemic disease (χ(2)= 16.748, P < .001), number of metastases at SRS (χ(2) = 27.216, P < .001), discovery of new metastases at time of SRS (χ(2) = 9.197, P < .01), and histology (χ(2) = 12.819, P < .07) were factors that predicted for earlier time to distant failure. High risk histologic subtypes (melanoma, her2 negative breast, χ(2) = 11.020, P < .001) and low risk subtypes (her2 + breast, χ(2) = 11.343, P < .001) were identified. Progressive systemic disease (χ(2) = 9.549, P < .01), number of brain metastases (χ(2) = 16.953, P < .001), minimum SRS dose (χ(2) = 21.609, P < .001), and widespread metastatic disease (χ(2) = 29.396, P < .001) were predictive of shorter time to WBRT. CONCLUSION Systemic disease, number of metastases, and histology are factors that predict distant failure rate after primary radiosurgical management of brain metastases.
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Affiliation(s)
- Diandra N Ayala-Peacock
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - Ann M Peiffer
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - John T Lucas
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - Scott Isom
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - J Griff Kuremsky
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - James J Urbanic
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - J Daniel Bourland
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - Adrian W Laxton
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - Stephen B Tatter
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - Edward G Shaw
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
| | - Michael D Chan
- Department of Radiation Oncology, Wake Forest School of Medicine, Winston-Salem, North Carolina (D.N.A.-P., A.M.P., J.T.L., J.G.K., J.J.U., J.D.B., E.G.S., M.D.C.); Department of Neurosurgery, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.W.L., S.B.T.); Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina (S.I.); Brain Tumor Center of Excellence, Wake Forest School of Medicine, Winston-Salem, North Carolina (A.M.P., J.D.B., A.W.L., S.B.T., E.G.S., M.D.C.)
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