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Adjuvant Sunitinib for High-risk Renal Cell Carcinoma After Nephrectomy: Subgroup Analyses and Updated Overall Survival Results
- Motzer, Robert J;
- Ravaud, Alain;
- Patard, Jean-Jacques;
- Pandha, Hardev S;
- George, Daniel J;
- Patel, Anup;
- Chang, Yen-Hwa;
- Escudier, Bernard;
- Donskov, Frede;
- Magheli, Ahmed;
- Carteni, Giacomo;
- Laguerre, Brigitte;
- Tomczak, Piotr;
- Breza, Jan;
- Gerletti, Paola;
- Lechuga, Mariajose;
- Lin, Xun;
- Casey, Michelle;
- Serfass, Lucile;
- Pantuck, Allan J;
- Staehler, Michael
- et al.
Published Web Location
https://doi.org/10.1016/j.eururo.2017.09.008Abstract
Background
Adjuvant sunitinib significantly improved disease-free survival (DFS) versus placebo in patients with locoregional renal cell carcinoma (RCC) at high risk of recurrence after nephrectomy (hazard ratio [HR] 0.76, 95% confidence interval [CI] 0.59-0.98; p=0.03).Objective
To report the relationship between baseline factors and DFS, pattern of recurrence, and updated overall survival (OS).Design, setting, and participants
Data for 615 patients randomized to sunitinib (n=309) or placebo (n=306) in the S-TRAC trial.Outcome measurements and statistical analysis
Subgroup DFS analyses by baseline risk factors were conducted using a Cox proportional hazards model. Baseline risk factors included: modified University of California Los Angeles integrated staging system criteria, age, gender, Eastern Cooperative Oncology Group performance status (ECOG PS), weight, neutrophil-to-lymphocyte ratio (NLR), and Fuhrman grade.Results and limitations
Of 615 patients, 97 and 122 in the sunitinib and placebo arms developed metastatic disease, with the most common sites of distant recurrence being lung (40 and 49), lymph node (21 and 26), and liver (11 and 14), respectively. A benefit of adjuvant sunitinib over placebo was observed across subgroups, including: higher risk (T3, no or undetermined nodal involvement, Fuhrman grade ≥2, ECOG PS ≥1, T4 and/or nodal involvement; hazard ratio [HR] 0.74, 95% confidence interval [CI] 0.55-0.99; p=0.04), NLR ≤3 (HR 0.72, 95% CI 0.54-0.95; p=0.02), and Fuhrman grade 3/4 (HR 0.73, 95% CI 0.55-0.98; p=0.04). All subgroup analyses were exploratory, and no adjustments for multiplicity were made. Median OS was not reached in either arm (HR 0.92, 95% CI 0.66-1.28; p=0.6); 67 and 74 patients died in the sunitinib and placebo arms, respectively.Conclusions
A benefit of adjuvant sunitinib over placebo was observed across subgroups. The results are consistent with the primary analysis, which showed a benefit for adjuvant sunitinib in patients at high risk of recurrent RCC after nephrectomy.Patient summary
Most subgroups of patients at high risk of recurrent renal cell carcinoma after nephrectomy experienced a clinical benefit with adjuvant sunitinib.Trial registration
ClinicalTrials.gov NCT00375674.Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.
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