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Effect of Targeted Therapies on Prognostic Factors, Patterns of Care, and Survival in Patients With Renal Cell Carcinoma and Brain Metastases
Journal article   Peer reviewed

Effect of Targeted Therapies on Prognostic Factors, Patterns of Care, and Survival in Patients With Renal Cell Carcinoma and Brain Metastases

Paul W Sperduto, Brian J Deegan, Jing Li, Krishan R Jethwa, Paul D Brown, Natalie Lockney, Kathryn Beal, Nitesh G Rana, Albert Attia, Chia-Lin Tseng, …
International journal of radiation oncology, biology, physics, Vol.101(4), pp.845-853
07/15/2018
DOI: 10.1016/j.ijrobp.2018.04.006
PMCID: PMC6925530
PMID: 29976497

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Abstract

To identify prognostic factors, define evolving patterns of care, and the effect of targeted therapies in a larger contemporary cohort of renal cell carcinoma (RCC) patients with new brain metastases (BM). A multi-institutional retrospective institutional review board-approved database of 711 RCC patients with new BM diagnosed from January 1, 2006, to December 31, 2015, was created. Clinical parameters and treatment were correlated with median survival and time from primary diagnosis to BM. Multivariable analyses were performed. The median survival for the prior/present cohorts was 9.6/12 months, respectively (P < .01). Four prognostic factors (Karnofsky performance status, extracranial metastases, number of BM, and hemoglobin b) were significant for survival after the diagnosis of BM. Of the 6 drug types studied, only cytokine use after BM was associated with improved survival. The use of whole-brain radiation therapy declined from 50% to 22%, and the use of stereotactic radiosurgery alone increased from 46% to 58%. Nonneurologic causes of death were twice as common as neurologic causes. Additional prognostic factors refine prognostication in this larger contemporary cohort. Patterns of care have changed, and survival of RCC patients with BM has improved over time. The reasons for this improvement in survival remain unknown but may relate to more aggressive use of local brain metastasis therapy and a wider array of systemic treatment options for those patients with progressive extracranial tumor.
Adolescent Adult Aged Aged, 80 and over Angiogenesis Inhibitors - therapeutic use Antineoplastic Agents - therapeutic use Brain Neoplasms - blood Brain Neoplasms - mortality Brain Neoplasms - secondary Brain Neoplasms - therapy Carcinoma, Renal Cell - blood Carcinoma, Renal Cell - mortality Carcinoma, Renal Cell - secondary Carcinoma, Renal Cell - therapy Cause of Death Cranial Irradiation - statistics & numerical data Cytokines - therapeutic use Female Hemoglobins - analysis Humans Immunotherapy Karnofsky Performance Status Kidney Neoplasms - blood Kidney Neoplasms - mortality Kidney Neoplasms - pathology Male Middle Aged Multivariate Analysis Prognosis Radiosurgery - statistics & numerical data Retrospective Studies Young Adult

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