Journal
INTERNATIONAL JOURNAL OF UROLOGY
Volume 20, Issue 5, Pages 478-483Publisher
WILEY
DOI: 10.1111/j.1442-2042.2012.03204.x
Keywords
metastatic renal cell carcinoma; renal cancer medical treatment; sunitinib; treatment toxicity; tyrosine kinase inhibitors
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Funding
- Associazione Toscana Ricerche e Cure Oncologiche Florence, Italy
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Objectives Sunitinib is the standard care for first-line treatment of metastatic renal cell carcinoma. The aim of this study was to determine whether a sunitinib regimen of 50mg/day 2-weeks on/1-week off could maintain the same dose-intensity as the standard 4-weeks on/2-weeks off schedule, and provide the same efficacy in terms of objective response, progression-free survival and overall survival, while reducing drug-related toxicity. Methods A total of 31 patients with metastatic renal cell carcinoma received sunitinib orally at the dose of 50mg/day in a 2-weeks on/1-week off regimen until disease progression or intolerable toxicities occurred. Results All enrolled patients were assessable in terms of toxicity and response. They received treatment for a median of 16months (range 2.036.0+months). A total of 13 patients (42%) obtained an objective response; disease stabilization was achieved in 10 patients (32%), whereas eight patients (26%) experienced disease progression. The most important toxicities were anemia, gastrointestinal effects, fatigue and hypertension, but they were all controlled. Conclusions Sunitinib 50mg given orally in a 2-weeks on/1-week off regimen can provide a high response rate and avoid drug-related toxicities, achieving the same dose intensity as the standard schedule, and probably longer disease control.
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