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Outcome of patients with metastatic sarcomatoid renal cell carcinoma: results from the International Metastatic Renal Cell Carcinoma Database Consortium

Authors
 Christos E. Kyriakopoulos  ;  Namita Chittoria  ;  Toni K. Choueiri  ;  Nils Kroeger  ;  Jae-Lyun Lee  ;  Sandy Srinivas  ;  Jennifer J. Knox  ;  Georg A. Bjarnason  ;  Scott D. Ernst  ;  Lori A. Wood  ;  Ulka N. Vaishampayan  ;  Neeraj Agarwal  ;  Sumanta K. Pal  ;  Ravindran Kanesvaran  ;  Sun-Young Rha  ;  Takeshi Yuasa  ;  Frede Donskov  ;  Scott A. North  ;  Daniel Y. Heng  ;  Brian I. Rini 
Citation
 CLINICAL GENITOURINARY CANCER, Vol.13(2) : 79-85, 2015 
Journal Title
CLINICAL GENITOURINARY CANCER
ISSN
 1558-7673 
Issue Date
2015
MeSH
Angiogenesis Inhibitors/therapeutic use* ; Antineoplastic Agents/therapeutic use* ; Carcinoma, Renal Cell/drug therapy* ; Carcinoma, Renal Cell/pathology ; Databases, Factual ; Humans ; Kidney Neoplasms/drug therapy* ; Kidney Neoplasms/pathology ; Molecular Targeted Therapy ; Neoplasm Metastasis ; Neoplasm Recurrence, Local/pathology* ; Retrospective Studies ; Treatment Outcome ; Vascular Endothelial Growth Factor A/antagonists & inhibitors
Keywords
IMDC risk model ; Kidney cancer ; Overall survival ; Prognostication ; Targeted therapies
Abstract
BACKGROUND: Sarcomatoid renal cell carcinoma is associated with poor prognosis. Data regarding outcome in the targeted therapy era are lacking.

PATIENTS AND METHODS: Clinical, prognostic, and treatment parameters in metastatic renal cell carcinoma patients with and without sarcomatoid histology treated with targeted therapy were retrospectively analyzed.

RESULTS: Two thousand two hundred eighty-six patients were identified (sRCC: n = 230 and non-sRCC: n = 2056). sRCC patients had significantly worse IMDC prognostic criteria compared with non-sRCC (11% vs. 19% favorable risk; 49% vs. 57% intermediate risk, and 40% vs. 24% poor risk; P < .0001). Time from original diagnosis to relapse (excluding synchronous metastatic disease) was shorter in the sRCC group (18.8 vs. 42.9 months; P < .0001). There was no significant difference in the incidence of central nervous system metastases (6%-8%) or underlying clear cell histology (87%-88%). More than 93% of patients received VEGF inhibitors as first-line therapy; objective response was less common in sRCC whereas primary refractory disease was more common (21% vs. 26% and 43% vs. 21%; P < .0001, for both). sRCC patients had significantly less use of second- (P = .018) and third-line (P < .0001) systemic therapy. The median progression-free survival (PFS)/overall survival (OS) was 4.5/10.4 months in sRCC patients and 7.8/22.5 months in non-sRCC patients (P < .0001 for both). Sarcomatoid histology was associated with a significantly worse PFS and OS after adjusting for individual IMDC risk factors in multivariable analysis (hazard ratio, 1.5; P < .0001 for both).

CONCLUSION: Patients with sRCC have a shorter time to relapse, worse baseline prognostic criteria, and worse clinical outcome with targeted therapy. Additional insight into the biology of sRCC is needed to develop alternative therapeutics.
Full Text
http://www.sciencedirect.com/science/article/pii/S1558767314002043
DOI
10.1016/j.clgc.2014.08.011
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Rha, Sun Young(라선영) ORCID logo https://orcid.org/0000-0002-2512-4531
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/141620
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