Παρασκευή, 24 Φεβρουαρίου 2017

Efficacy and safety of sorafenib in advanced renal cell cancer and validation of Heng criteria

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A Joshi, A Ramaswamy, V Noronha, VM Patil, A Chandrasekharan, A Goel, A Sahu, N Sable, A Agrawal, S Menon, K Prabhash

Indian Journal of Cancer 2016 53(3):423-428

INTRODUCTION: Sorafenib is an established upfront treatment option for metastatic RCC (mRCC). There is no published literature regarding its performance in Indian Patients. We present an analysis of Sorafenib use in our institute and attempt to validate the Heng criteria as a prognostic score in these patients. MATERIALS AND METHODS: Patients who received Sorafenib as first line treatment for advanced RCC from June 2012 to December 2015 were prognosticated by Heng criteria and retrospectively analysed for baseline demographics, toxicity, response and outcomes. RESULTS: 82 patients (65 males, 17 females) with a median age of 57 years were included for final analysis. Median ECOG PS was 1, 95.2 % of the patients had Stage IV disease and clear cell was the predominant histology (79.4%). 23.2%, 42.7% and 34.1% of patients were classified as low, intermediate and high risk by Heng's criteria, respectively. Dose reduction was required in 24.4% of patients, while 14.6% required permanent cessation of Sorafenib due to intolerable or recurrent side effects. Common adverse events included HFS (68.2%), mucositis (35.3%), fatigue (35.3%), rash (32.9%) and hypertension (25.6%). Response rate observed was 18.2%, while clinical benefit rate was 57.2% in the 57 patients where response was evaluable. Median progression free survival was 7.75 months (5.45-10.05) and median overall survival (OS) was 12.18 months (9.61 – 14.76). Median OS was 19.6, 16.1 and 10.3 months respectively for low, intermediate and high risk patients by Heng criteria and the criteria was statistically discriminatory for the 3 groups for OS (p=0.045, chi-square test). CONCLUSION: Sorafenib is a viable upfront treatment option for metastatic RCC in Indian patients with acceptable PFS, although a high incidence of HFS, mucositis and rash is observed. The Heng score has discriminatory value in mRCC with Sorafenib and can be considered for routine use in the clinic.

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