Publication date: July 2017
Source:European Journal of Cancer, Volume 79
Author(s): Margarida Matias, Gwénaël Le Teuff, Laurence Albiges, Annalisa Guida, Caroline Brard, Giulia Bacciarelo, Yohann Loriot, Christophe Massard, Nathalie Lassau, Karim Fizazi, Bernard Escudier
BackgroundAxitinib has shown activity in metastatic renal cell carcinoma (mRCC) in a large phase III clinical trial and was approved in patients who failed first-line therapy. This drug has been available in France since November 2012. The objective is to report efficacy and safety of axitinib in mRCC outside of clinical trials.MethodsA prospective evaluation of mRCC patients treated by axitinib in second or further next-line therapy at Gustave Roussy was conducted from 2012 to 2015. Objective response rate (ORR), progression-free survival (PFS), time to treatment failure (TTF), overall survival (OS) and toxicities were analysed. The correlation between clinical markers and ORR, PFS, TTF and OS were explored.ResultsOne-hundred and sixty patients with mRCC, received axitinib in second (40%) or further next-line therapy (60%). International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) risk group classification was good, intermediate and poor in 13%, 54% and 32%, respectively. Dose titration (DT) to 7 mg twice a day (bid) was performed in 38% and to 10 mg bid in 19% of the patients. Hypertension was the most common adverse event, (grade (G)3: 39%; G4: 2%). ORR occurred in 32% (n = 33, only partial response). Median PFS, TTF and OS were 8.3, 5.8 and 16.4 months, respectively. IMDC risk group and DT at 2 weeks are associated to ORR while grade 3 hypertension is marginally associated. IMDC risk group and grade 3 hypertension are significantly associated with better PFS, TTF and OS while DT at 2 weeks is associated to PFS and TTF.ConclusionEfficacy of axitinib in routine practice is similar to that previously reported, not only in second- but also in further next-lines of therapy.
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