Observational studyESMO open2023
Incidence, clinicopathological features, and clinical outcomes of low HER2 expressed, inoperable, advanced, or recurrent gastric/gastroesophageal junction adenocarcinoma.
Observational study in ESMO open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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
15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 17 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
- Survival Outcomes in ERBB2-Low vs ERBB2-Null Advanced Gastric Cancer.JAMA network open · 2026Observational
- Clinicopathological features and prognosis of HER2-low gastric cancer: a real-world retrospective cohort study.World journal of surgical oncology · 2026Article
- Impact of claudin 18.2 expression on the efficacy of trastuzumab deruxtecan in patients with HER2-positive gastric or gastroesophageal junction cancer.ESMO gastrointestinal oncology · 2026Article
- Prognostic Impact and Clinicopathological Correlates of HER2 Status in Gastric Cancer: A Multicenter Retrospective Turkish Oncology Group Study.Clinical Medicine Insights. Oncology · 2026Article
- The Effect of HER2 Status on Gastric Cancer Survival and the Clinical Implications of the HER2-Low Definition: A Retrospective Study.Medicina (Kaunas, Lithuania) · 2025Article
- Clinicopathological and prognostic significance of HER2-low expression in advanced gastric cancer: a retrospective observational study.The oncologist · 2025Observational
- Evolution of HER2-low expression from primary to paired metastatic gastric cancer lesions.NPJ precision oncology · 2025Article
- Expression of therapy target molecules in esophagogastric junction and Barrett's adenocarcinoma.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025Article
- Nationwide survey on HER2 and PD-L1 testing practices in gastric cancer across Japan.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025Article
- Human Epidermal Growth Factor Receptor 2 Positive Advanced Gastric or Esophagogastric Adenocarcinoma: Reflecting on the Past to Gain a New Insights.Current oncology reports · 2025Review
- Targeting Esophageal Cancer: Promising Drugs for the Clinical Landscape and Key Knowledge Gaps.Drug design, development and therapy · 2025Review
- HER2-low gastric cancer: is the subgroup targetable?ESMO open · 2024Review
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAccording to the DESTINY-Breast04 trial, treating patients with breast cancer and low human epidermal growth factor receptor 2 expressions (HER2-low) varies from that of those with no HER2 expression. However, it is interesting to know if HER2-low indicates for anti-HER2 therapy in the gastric or gastroesophageal junction (G/GEJ) adenocarcinoma. Hence we conducted this study to assess the incidence, clinicopathological features, and treatment outcomes of patients with HER2-low G/GEJ adenocarcinoma. PATIENTS AND
methodsThis was a single-center, retrospective observational study. Patients with previously untreated G/GEJ adenocarcinoma were classified based on their HER2 status using immunohistochemistry (IHC) with or without in situ hybridization (ISH) as follows: HER2 negative (IHC 0), HER2-low (IHC 1+ or 2+/ISH-), and HER2-positive (IHC2+/ISH+ or 3+).
resultsIn total, 734 patients with G/GEJ adenocarcinoma were divided into three groups (HER2-negative, n = 410; HER2-low, n = 154, and HER2-positive, n = 170). The intestinal-type histology, peritoneal metastasis, and higher serum carcinoembryonic antigen (CEA) levels differed significantly among patients with negative, low, and positive HER2 statuses: intestinal-type histology (21.0%, 44.2%, and 59.8%, respectively), peritoneal metastasis (56.3%, 44.8%, and 21.8%, respectively), and higher serum CEA level (32.2%, 41.6%, and 56.5%, respectively). Improved survival was observed in the HER2-positive group than in the HER2-negative G/GEJ adenocarcinoma group [hazard ratio (HR) = 0.73, 95% confidence interval (CI) 0.59-0.89; P = 0.002]. However, the prognoses of the HER2-low and HER2-negative groups were similar (HR = 1.01, 95% CI 0.82-1.23; P = 0.843).
conclusionsPatients with HER2-low G/GEJ adenocarcinoma exhibited intermediate and distinct characteristics than those in the HER2-negative group. Similarly, the HER2-low group's prognosis was worse than that of the HER2-positive group. Therefore developing novel therapeutic strategies targeting HER2-low G/GEJ adenocarcinoma is required.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.