ArticleJournal of clinical oncology : official journal of the American Society of Clinical Oncology2021
HER2 Expression, Test Deviations, and Their Impact on Survival in Metastatic Gastric Cancer: Results From the Prospective Multicenter VARIANZ Study.
Article in Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 3 of them syntheses that pooled it.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
75 citing papers in PubMed, 3 syntheses or guidelines pooled it, 115 citations in OpenAlex.
- The Utility of HER2 Overexpression in Prognosis of Gastric Cancer: A Systematic Review and Meta-Analysis Study.Cancer reports (Hoboken, N.J.) · 2026Pooled it
- Chinese guidelines for HER2-targeted therapy in gastric and gastroesophageal junction adenocarcinoma (2025 Edition).Journal of hematology & oncology · 2026Guideline
- ESMO Clinical Practice Guideline interim update on the management of biliary tract cancer.ESMO open · 2025Guideline
- Safety and Preliminary Activity of Neoadjuvant Trastuzumab Deruxtecan plus 5-Fluorouracil and Folinic Acid for HER2-Positive, Resectable Esophagogastric Adenocarcinoma: Results from the Safety Run-In Cohort of the Phase Ib/II UCCL-AIO-STO0124-IKF072 NeoART Trial.Oncology research and treatment · 2026Trial
- Efficacy and safety of KN026, a bispecific anti-HER2 antibody, in combination with KN046, an anti-CTLA4/PD-L1 antibody, in patients with advanced HER2-positive nonbreast cancer: a combined analysis of a phase Ib and a phase II study.Signal transduction and targeted therapy · 2025Trial
- Determinants of Survival with Combined HER2 and PD-1 Blockade in Metastatic Esophagogastric Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023Trial
- Trastuzumab with trimodality treatment for oesophageal adenocarcinoma with HER2 overexpression (NRG Oncology/RTOG 1010): a multicentre, randomised, phase 3 trial.The Lancet. Oncology · 2022Trial
- Tumor-Aware Unsupervised Digital HER2 Immunohistochemistry via Dual Contrastive Learning.Biosensors · 2026Article
- Survival Outcomes in ERBB2-Low vs ERBB2-Null Advanced Gastric Cancer.JAMA network open · 2026Observational
- ERBB2/HER2 landscape and prognostic impact: large-scale, real-world analysis across solid cancers.ESMO open · 2026Article
- UCCL-IKF-AIO-STO-0124 NeoART-an international phase Ib/II platform trial investigating trastuzumab deruxtecan (T-DXd) combined with neoadjuvant chemotherapy for HER2-positive, resectable esophagogastric adenocarcinoma (EGA).ESMO gastrointestinal oncology · 2026Article
- Multi-institutional assessment of HER2 immunohistochemistry in gastric and esophagogastric junction cancer.iScience · 2026Article
- FDA Approval Summary: Pembrolizumab for the Treatment of HER2-Positive Gastric Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026Article
- Clinical impact of intratumoral HER2 heterogeneity on trastuzumab deruxtecan efficacy in patients with HER2-positive gastric cancer.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026Article
- Association between effectiveness of treatment with curative intent and outcomes of first-line systemic therapy in metachronous metastatic gastroesophageal adenocarcinoma.British journal of cancer · 2026Article
- Advances in Targeted Therapy for Human Epidermal Growth Factor Receptor 2-Low Tumors: From Trastuzumab to Antibody-Drug Conjugates.World journal of oncology · 2026Review
- Identification and validation of an 11-kinase signature that predicts chemo- and radiosensitivity in gastric cancer.EBioMedicine · 2026Article
- Antibody-drug conjugates in gastric cancer: clinical advances and resistance mechanisms.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026Review
- Interpretable deep learning-based hierarchical multi-modal fusion model for predicting HER2 expression in gastric cancer.Frontiers in oncology · 2026Article
- Discussion on the mechanism of HER2 resistance in esophagogastric junction and gastric cancer in the era of immunotherapy.Human vaccines & immunotherapeutics · 2025Review
15 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
19 authors at 13 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTrastuzumab is the only approved targeted drug for first-line treatment of human epidermal growth factor receptor 2-positive (HER2+) metastatic gastric cancer (mGC). However, not all patients respond and most eventually progress. The multicenter VARIANZ study aimed to investigate the background of response and resistance to trastuzumab in mGC.
methodsPatients receiving medical treatment for mGC were prospectively recruited in 35 German sites and followed for up to 48 months. HER2 status was assessed centrally by immunohistochemistry and chromogenic in situ hybridization. In addition,
resultsFive hundred forty-eight patients were enrolled, and 77 had HER2+ mGC by central assessment (14.1%). A high deviation rate of 22.7% between central and local test results was seen. Patients who received trastuzumab for centrally confirmed HER2+ mGC (central HER2+/local HER2+) lived significantly longer as compared with patients who received trastuzumab for local HER2+ but central HER2- mGC (20.5 months, n = 60
conclusionSignificant discrepancies in HER2 assessment of mGC were found in tumor specimens with intermediate HER2 expression. Borderline HER2 positivity and heterogeneity of HER2 expression should be considered as resistance factors for HER2-targeting treatment of mGC. HER2 thresholds should be reconsidered. Detailed reports with quantification of
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.