alexa A large-scale prospective registration study of the safety and efficacy of sorafenib tosylate in unresectable or metastatic renal cell carcinoma in Japan: results of over 3200 consecutive cases in post-marketing all-patient surveillance.
Gastroenterology

Gastroenterology

Journal of Liver

Author(s): Akaza H, Oya M, Iijima M, Hyodo I, Gemma A,

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Abstract OBJECTIVE: Real-life safety and efficacy of sorafenib in advanced renal cell carcinoma in a nationwide patient population were evaluated by post-marketing all-patient surveillance. METHODS: All patients with unresectable or metastatic renal cell carcinoma in Japan who started sorafenib therapy from February 2008 to September 2009 were registered and followed for up to 12 months. Baseline characteristics, treatment status, tumor response, survival and safety data were recorded by the prescribing physicians. RESULTS: Safety and efficacy were evaluated in 3255 and 3171 patients, respectively. The initial daily dose was 800 mg in 78.2\% of patients. Median duration of treatment was 6.7 months and the mean relative dose intensity was 68.4\%. Overall, 2227 patients (68.4\%) discontinued the treatment by 12 months, half of which (52.0\% of discontinued patients) were due to adverse events. The most common adverse drug reactions were hand-foot skin reaction (59\%), hypertension (36\%), rash (25\%) and increase in lipase/amylase (23\%). The median progression-free survival was 7.3 months (95\% confidence intervals: 6.7-8.1), and the overall survival rate at 1 year was 75.4\% (73.5-77.1). Prognostic factors for overall survival were mostly consistent with those in previous clinical trials in the univariate analysis and largely similar to those for progression-free survival and duration of treatment in the multivariate analysis. CONCLUSIONS: Sorafenib for the treatment of advanced renal cell carcinoma under the labeled dose was feasible in daily medical practice, for its acceptable toxicity profile and favorable clinical benefit that were consistent with those in clinical trials. © The Author 2015. Published by Oxford University Press.
This article was published in Jpn J Clin Oncol and referenced in Journal of Liver

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