It showed a trend of a longer OS in patients with prior trastuzumab use than those without prior trastuzumab use (median, 8.3 months vs. 4.8 months). 43 The KEYNOTE‐811 trial evaluating the combination of anti‐PD‐1 antibody and HER2‐blockade plus chemotherapy showed remarkable ORR of 74.4%. 44 Meanwhile, it
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Progression patterns and site-specific responses in advanced gastric cancer patients treated with nivolumab.
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