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- W2589164886 abstract "411 Background: Many medical oncologists are still reluctant to use the standard sunitinib regimen in older patients (pts) with metastatic renal cell cancer (mRCC) because of concerns about tolerance. We assessed the routine use of first-line sunitinib in mRCC pts aged ≥70 yrs. Methods: We reviewed the clinical files of 154 pts aged ≥70 yrs with mRCC treated with first-line sunitinib in sixteen Italian Oncology Units from February 2006 to April 2011. Sunitinib 50 mg/d 4 wk on/2 wk off was considered the standard regimen (SR). All alternative schedules of sunitinib administration were considered as adapted regimens (AR). After univariate analysis a multivariate analysis was carried out by Cox regression model and included the following variables: age (<75 vs ≥75 yrs), Eastern Cooperative Oncology Group (ECOG) performance status (PS; 0-1 vs ≥2), presence of comorbidities (0 vs ≥1), lymphocytopenia (<1,000/microL vs >1,000/microL), prognostic score for VEGF-targeted agents according to Heng 2009 (good + intermediate prognosis vs poor prognosis), and treatment schedule (SR vs AR). Results: Median age was 74 yrs (range, 70-88 yrs). One hundred six pts (68.8%) received a SR and 48 (31.2%) received an AR consisting of 37.5 mg/d 4 wk on/2 wk off (32 cases, 67%), 25 mg/d 4 wk on/2 wk off (12 cases, 25%) and 37.5 mg continuous once-daily dosing in (4 cases, 8%). Pts treated with an AR were older than those treated with the SR (≥75 yrs, 56% vs 32%, respectively, p=0.008); with no differences for the other variables. Pts received a median of 4 sunitinib cycles with either SR or AR. Grade 3-4 toxicities occurred in 65% of SR and 42% of AR (p=0.008); dose reductions were required in 64% and 40%, respectively (p=0.005); discontinuations due to therapy-related adverse events occurred in 23% and 21%, respectively (p=0.967). Median progression-free survival (PFS) was 10.6 months (95% CI 8.7-15.3) and median overall survival (OS) was 20.1 months (95% CI 15.5-not reached). In multivariate analysis, only PS and the Heng score were predictors of either PFS or OS. Conclusions: Sunitinib is active and feasible in pts with mRCC aged ≥70 yrs. AR does not appear to influence PFS and OS and has a favorable impact on toxicity." @default.
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- W2589164886 date "2012-02-10" @default.
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- W2589164886 title "Sunitinib as first-line therapy in elderly patients (age 70 and older) with metastatic renal cell cancer." @default.
- W2589164886 doi "https://doi.org/10.1200/jco.2012.30.5_suppl.411" @default.
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