20 According to the hierarchical testing, OS was significantly improved with tislelizumab over chemotherapy in patients with PD-L1 TAP ≥ 10% (HR, 0.54), and in the prespecified exploratory analysis, tislelizumab also showed a favorable trend of improvement in OS versus chemotherapy in patients with PD-L1 TAP < 10% (HR, 0.82).
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Tislelizumab Versus Chemotherapy as Second-Line Treatment for Advanced or Metastatic Esophageal Squamous Cell Carcinoma (RATIONALE-302): A Randomized Phase III Study.
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