OBJECTIVE: • To investigate the effect of combining gemcitabine plus capecitabine (GX) with bevacizumab (A) in patients with metastatic RCC previously treated with cytokines and targeted agents. METHODS: • The combination of GX + A was evaluated in patients with metastatic RCC using institutional databases. • Data included demographics, previous therapies, number of metastatic sites, Memorial Sloan-Kettering Cancer Center risk stratification variables, and previous nephrectomy status. • Descriptive statistics and survival analysis were employed for data analysis. RESULTS: • Between January 2005 and October 2008, 28 patients were identified. Mean age was 55.7 years. Fifteen (53.57%) patients had been given tyrosine kinase inhibitor (TKI) previously. Nine (32.14%) patients had clear cell histology, 10 (35.71%) patients had sarcomatoid features on histopathology, and 19 patients (67.86%) had a prior nephrectomy. • Initial treatment consisted of G (mean dose 786.07 mg/m²) every 2 weeks, X (mean dose 2.73 g/day), and A (mean dose 10 mg/kg) every 2 weeks. Median progression-free survival (PFS) was 5.9 months and the median overall survival (OS) was 10.4 months. • In patients with previous TKI therapy, median PFS was 6.2 months and median OS was 11.7 months. • In patients with sarcomatoid features, median PFS was 3.9 months and OS was 9.0 months. • Three patients discontinued one or more of the drugs because of adverse reactions. CONCLUSIONS: • The combination of GX + A shows potential efficacy and acceptable tolerability in patients with intermediate and poor prognosis metastatic RCC. • Based on these observations, a phase II trial is now underway assessing this combination in patients with sarcomatoid RCC.
OBJECTIVE: • To investigate the effect of combining gemcitabine plus capecitabine (GX) with bevacizumab (A) in patients with metastatic RCC previously treated with cytokines and targeted agents. METHODS: • The combination of GX + A was evaluated in patients with metastatic RCC using institutional databases. • Data included demographics, previous therapies, number of metastatic sites, Memorial Sloan-Kettering Cancer Center risk stratification variables, and previous nephrectomy status. • Descriptive statistics and survival analysis were employed for data analysis. RESULTS: • Between January 2005 and October 2008, 28 patients were identified. Mean age was 55.7 years. Fifteen (53.57%) patients had been given tyrosine kinase inhibitor (TKI) previously. Nine (32.14%) patients had clear cell histology, 10 (35.71%) patients had sarcomatoid features on histopathology, and 19 patients (67.86%) had a prior nephrectomy. • Initial treatment consisted of G (mean dose 786.07 mg/m²) every 2 weeks, X (mean dose 2.73 g/day), and A (mean dose 10 mg/kg) every 2 weeks. Median progression-free survival (PFS) was 5.9 months and the median overall survival (OS) was 10.4 months. • In patients with previous TKI therapy, median PFS was 6.2 months and median OS was 11.7 months. • In patients with sarcomatoid features, median PFS was 3.9 months and OS was 9.0 months. • Three patients discontinued one or more of the drugs because of adverse reactions. CONCLUSIONS: • The combination of GX + A shows potential efficacy and acceptable tolerability in patients with intermediate and poor prognosis metastatic RCC. • Based on these observations, a phase II trial is now underway assessing this combination in patients with sarcomatoid RCC.
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