Journal
BRITISH JOURNAL OF CANCER
Volume 106, Issue 9, Pages 1475-1480Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/bjc.2012.89
Keywords
intolerance; kidney cancer; mTOR inhibitor; RAD001; VEGF-targeted therapy
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Funding
- Novartis Pharmaceuticals Corporation
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BACKGROUND: A relevant percentage of patients with metastatic renal cell carcinoma develop intolerance to vascular endothelial growth factor receptor-tyrosine kinase inhibitors (VEGFr-TKIs) and require careful selection of subsequent treatment. This retrospective analysis evaluated the safety and efficacy of everolimus in patients enrolled in the phase-III RECORD-1 trial who discontinued previous VEGFr-TKI therapy because of toxicity. METHODS: Patients with an adverse event (AE) as their primary reason for discontinuation of previous VEGFr-TKI therapy were included. Median progression-free survival (PFS) for VEGFr-TKI-intolerant patients in each arm was estimated using the Kaplan-Meier method, and effect on PFS (hazard ratio (HR)) was calculated using the Cox proportional hazard model. RESULTS: In VEGFr-TKI-intolerant patients (n = 58, 14%), median PFS was 5.4 months with everolimus and 1.9 months with placebo (HR: 0.32; P = 0.004). In sunitinib-intolerant patients (n 26), median PFS was 5.1 months with everolimus and 2.8 months with placebo (HR: 0.28; P = 0.033). Grade 3/4 AEs reported with everolimus in VEGFr-TKI-intolerant patients included infections (16%), fatigue (7%) and stomatitis (4%). The toxicity profile of everolimus was similar in the VEGFr-TKI-intolerant and overall study populations. CONCLUSION: Everolimus is well tolerated and efficacious with no increased toxicity in patients intolerant to VEGFr-TKI therapy. British Journal of Cancer (2012) 106, 1475-1480. doi:10.1038/bjc.2012.89 www.bjcancer.com Published online 22 March 2012 (C) 2012 Cancer Research UK
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