Clinical outcomes of the sequential use of pazopanib followed by everolimus for the treatment of metastatic renal cell carcinoma: A multicentre study in Korea
DOI:
https://doi.org/10.5489/cuaj.4644Abstract
Introduction: The aim of this study was to investigate the real-world clinical outcomes of first-line pazopanib and second-line everolimus in Korean patients with metastatic renal cell carcinoma (mRCC).
Methods: Data of patients who had mRCC with clear-cell component between 2001 and 2015 at multiple institutions were collected retrospectively. To be included in the analysis, patients had to meet the following criteria: age ≥18 years; received first-line targeted therapy with pazopanib; and received second-line targeted therapy with everolimus. The primary outcomes included overall survival (OS), progression-free survival (PFS), and adverse events (AEs).
Result: A total of 36 patients were included in the analysis. The median followup period was 33.5 months (range 17‒49.5). The median PFS was eight months (95% confidence interval [CI] 6.4‒9.6) after treatment with pazopanib and three months (95% CI 1.9‒4.1) with everolimus. The median OS was 27 months (95% CI 16.6‒37.4). The median treatment duration was seven months (range 4.3‒10.8) after treatment with pazopanib and 3.5 months (range 3‒4) with everolimus. Multivariate analysis revealed that the Heng risk criteria were independently associated with OS (p<0.001). Almost every patient experienced some form of AE, the majority of which were mostly mild or moderate in severity. The most common AEs were diarrhea (50%), hypertension (44.4%), and fatigue (41.7%) after treatment with pazopanib, and anemia (47.2%), stomatitis (41.7%), and fatigue (38.9%) with everolimus.
Conclusions: The outcomes for the patients treated with pazopanib followed by everolimus in Korea as observed by us were consistent with those reported by previous studies. The Heng risk criteria were significantly associated with the prognosis of patients with mRCC. AEs were mainly mild to moderate and readily managed.
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