OBJECTIVES: To identify the patient subgroups benefitting the most from the modern strategy including molecular-targeted therapy among patients with metastatic renal cell carcinoma (mRCC) in clinical practice. METHODS: Retrospective analysis of 144 patients with mRCC diagnosed between 1992 and 2011 at Kyoto University Hospital was conducted. Multivariate analysis using the Cox proportional hazards model was conducted to identify prognostic factors associated with overall survival (OS). Subgroup analysis was conducted to identify patients who benefitted the most from molecular-targeted therapy. RESULTS: Independent factors associated with worse OS are: tumors of histological type other than clear-cell, decreased hemoglobin (Hb), elevated lactate dehydrogenase (LDH), elevated C-reactive protein (CRP), and metastases at ≥ 3 sites. Median OS of patients treated with molecular-targeted therapy alone or with prior immunotherapy and those treated with immunotherapy alone was 57, 45 and 28 months, respectively. Molecular-targeted therapy had more effect on OS than immunotherapy alone among female patients, patients with Memorial Sloan-Kettering Cancer Center (MSKCC) intermediate risk features, and patients with metastatic progression less than 1 year after initial diagnosis of RCC, compared with their counterparts. CONCLUSIONS: The modern strategy including molecular-targeted therapy may improve OS in patients with mRCC and MSKCC intermediate risk features in clinical practice, relative to those with other risk features. However, the prognosis for patients with tumors of histological type other than clear-cell, decreased Hb, elevated LDH, elevated CRP, or metastases at ≥ 3 sites remains poor even in the modern molecular-targeted era. Novel treatment strategies are necessary to improve prognosis in these patients.
OBJECTIVES: To identify the patient subgroups benefitting the most from the modern strategy including molecular-targeted therapy among patients with metastatic renal cell carcinoma (mRCC) in clinical practice. METHODS: Retrospective analysis of 144 patients with mRCC diagnosed between 1992 and 2011 at Kyoto University Hospital was conducted. Multivariate analysis using the Cox proportional hazards model was conducted to identify prognostic factors associated with overall survival (OS). Subgroup analysis was conducted to identify patients who benefitted the most from molecular-targeted therapy. RESULTS: Independent factors associated with worse OS are: tumors of histological type other than clear-cell, decreased hemoglobin (Hb), elevated lactate dehydrogenase (LDH), elevated C-reactive protein (CRP), and metastases at ≥ 3 sites. Median OS of patients treated with molecular-targeted therapy alone or with prior immunotherapy and those treated with immunotherapy alone was 57, 45 and 28 months, respectively. Molecular-targeted therapy had more effect on OS than immunotherapy alone among female patients, patients with Memorial Sloan-Kettering Cancer Center (MSKCC) intermediate risk features, and patients with metastatic progression less than 1 year after initial diagnosis of RCC, compared with their counterparts. CONCLUSIONS: The modern strategy including molecular-targeted therapy may improve OS in patients with mRCC and MSKCC intermediate risk features in clinical practice, relative to those with other risk features. However, the prognosis for patients with tumors of histological type other than clear-cell, decreased Hb, elevated LDH, elevated CRP, or metastases at ≥ 3 sites remains poor even in the modern molecular-targeted era. Novel treatment strategies are necessary to improve prognosis in these patients.
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Authors: Daniel Y C Heng; Wanling Xie; Meredith M Regan; Mark A Warren; Ali Reza Golshayan; Chakshu Sahi; Bernhard J Eigl; J Dean Ruether; Tina Cheng; Scott North; Peter Venner; Jennifer J Knox; Kim N Chi; Christian Kollmannsberger; David F McDermott; William K Oh; Michael B Atkins; Ronald M Bukowski; Brian I Rini; Toni K Choueiri Journal: J Clin Oncol Date: 2009-10-13 Impact factor: 44.544
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