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Overall response rate (ORR) and clinical benefit analysis of sorafenib for human epidermal growth factor receptor 2 (HER2)-negative advanced breast cancer compared with placebo. ORR and clinical benefit rate were significantly higher in treatment group compared with placebo group (hazard ratio [HR], 1.19, 95% confidence interval [CI], 1.01-1.39, p=0.03; HR, 1.23, 95% CI, 1.03-1.45, p=0.02).
M-H=Mantel-Haenszel.
