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Σάββατο 2 Φεβρουαρίου 2019

Clinical Outcomes of 42 Renal Cell Carcinoma Patients With Metastases Solely to the Lung Who Received Sorafenib as Second-line Systemic Therapy

Background/Aim: In renal cell carcinoma (RCC), sorafenib was the first targeted agent demonstrating a definitive benefit in a large phase III clinical trial. The objective of this study was to assess the clinical outcomes of 42 consecutive RCC patients with metastases solely to the lung who received sorafenib as a second-line systemic agent. Patients and Methods: Of the 42 patients, 14 (33.3%) and 28 (66.7%) received cytokine therapy and sunitinib, respectively, prior to treatment with sorafenib. In this series, all patients initially received 400 mg of sorafenib twice daily on a continuous dosing schedule. The efficacy and safety of second-line sorafenib in these 42 patients were retrospectively evaluated. Results: As the best response to sorafenib, 2 (4.8%), 14 (33.3%), 22 (52.4%) and 4 (9.5%) patients were judged to show a complete response, partial response, stable disease and progressive disease, respectively. The median progression-free survival (PFS) and overall survival (OS) after the introduction of sorafenib was 10.6 and 30.2 months, respectively. Multivariate analyses of several parameters identified the following independent prognostic predictors: C-reactive protein (CRP) level for PFS, and International Renal Cell Carcinoma Database Consortium classification and CRP level for OS. The common adverse events associated with sorafenib were hand-foot syndrome, hypertension and diarrhea, which developed in 22 (52.4%), 17 (40.5%) and 13 (31.0%), respectively; however, any AEs corresponding to ≥grade 3 occurred in only 16 (38.1%). Conclusion: Favorable disease control with acceptable tolerability might be expected by introducing sorafenib as second-line therapy for RCC patients with metastases solely to the lung; therefore, sorafenib could be the optimal option for this category of patients.



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