期刊
NATURE
卷 600, 期 7890, 页码 727-+出版社
NATURE PORTFOLIO
DOI: 10.1038/s41586-021-04161-3
关键词
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资金
- Merck Sharp Dohme Corp.
- Memorial Sloan Kettering Cancer Center National Institutes of Health/National Cancer Institute Cancer Center Support Grant [P30 CA008748]
The study results demonstrate that adding pembrolizumab to trastuzumab and chemotherapy significantly reduces tumor size, induces complete responses in some patients, and improves objective response rate in HER2-positive gastric or gastro-oesophageal junction adenocarcinoma.
Human epidermal growth factor receptor 2 (HER2, also known as ERBB2) amplification or overexpression occurs in approximately 20% of advanced gastric or gastro-oesophageal junction adenocarcinomas(1-3). More than a decade ago, combination therapy with the anti-HER2 antibody trastuzumab and chemotherapy became the standard first-line treatment for patients with these types of tumours(4). Although adding the anti-programmed death 1 (PD-1) antibody pembrolizumab to chemotherapy does not significantly improve efficacy in advanced HER2-negative gastric cancer(5), there are preclinical(6-19) and clinical(20,21) rationales for adding pembrolizumab in HER2-positive disease. Here we describe results of the protocol-specified first interim analysis of the randomized, double-blind, placebo-controlled phase III KEYNOTE-811 study of pembrolizumab plustrastuzumab and chemotherapy for unresectable or metastatic, HER2-positive gastric or gastro-oesophageal junction adenocarcinoma 22 (https://clinicaltrials.gov, NCT03615326). We show that adding pembrolizumab to trastuzumab and chemotherapy markedly reduces tumour size, induces complete responses in some participants, and significantly improves objective response rate.
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