Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 720

The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.

The KEYNOTE-811 trial of dual PD-1 and HER2 blockade in HER2-positive gastric cancer

Open access
Janjigian, Yelena Y., Kawazoe, Akihito, Yañez, Patricio, Li, Ning, Lonardi, Sara, Kolesnik, Oleksii, Barajas, Olga, Bai, Yuxian, Shen, Lin, Tang, Yong, Wyrwicz, Lucjan S., Xu, Jianming, Shitara, Kohei, Qin, Shukui, Van Cutsem, Eric, Tabernero, Josep, Li, Lie, Shah, Sukrut, Bhagia, Pooja, Chung, Hyun Cheol·2021·Nature

Abstract

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 adenocarcinomas1–3. 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 tumours4. Although adding the anti-programmed death 1 (PD-1) antibody pembrolizumab to chemotherapy does not significantly improve efficacy in advanced HER2-negative gastric cancer5, there are preclinical6–19 and clinical20,21 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 plus trastuzumab and chemotherapy for unresectable or metastatic, HER2-positive gastric or gastro-oesophageal junction adenocarcinoma22 (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. Interim analysis of a phase III clinical trial of HER2-positive gastric adenocarinoma shows pembrolizumab plus trastuzumab and chemotherapy improves response rates compared with trastuzumab and chemotherapy alone.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/s41586-021-04161-3

Cites

30 of 30 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 30 references

Cited by

See all 720

Metadata

Authors
Janjigian, Y. Y., Kawazoe, A., Yañez, P., Li, N., Lonardi, S., Kolesnik, O., Barajas, O., Bai, Y., Shen, L., Tang, Y., Wyrwicz, L. S., Xu, J., Shitara, K., Qin, S., Van Cutsem, E., Tabernero, J., Li, L., Shah, S., Bhagia, P., & Chung, H. C.
Venue
Nature
Published
2021-12-15
Volume
600
Issue
7890
Pages
727-730
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W4200595129
Cited by
720
References
30
FWCI
72.62
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: The KEYNOTE-811 trial of dual PD-1 and HER2 blockade in HER2-positive gastric cancer. https://app.cochat.ai/papers/10.1038/s41586-021-04161-3
The paper
Janjigian, Y. Y., Kawazoe, A., Yañez, P., Li, N., Lonardi, S., Kolesnik, O., Barajas, O., Bai, Y., Shen, L., Tang, Y., Wyrwicz, L. S., Xu, J., Shitara, K., Qin, S., Van Cutsem, E., Tabernero, J., Li, L., Shah, S., Bhagia, P., & Chung, H. C. (2021). The KEYNOTE-811 trial of dual PD-1 and HER2 blockade in HER2-positive gastric cancer. Nature. https://doi.org/10.1038/s41586-021-04161-3

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.