Trial reportESMO open2025
HER2DX in HER2-positive inflammatory breast cancer: correlative insights and comparative analysis with noninflammatory breast cancers.
Trial report in ESMO open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01796197 (Phase II Trial of Paclitaxel Combined With Trastuzumab and Pertuzumab as Pre-Operative Therapy for Inflammatory Breast Cancer), which is not on this map. Cited by 2 papers.
What it found
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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.
Phase II Trial of Paclitaxel Combined With Trastuzumab and Pertuzumab as Pre-Operative Therapy for Inflammatory Breast Cancer
Who cites it
2 citing papers in PubMed.
- Associations of the HER2DX Genomic Test with Biological and Pathologic Features in HER2-Positive Breast Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026Article
- Association between hospital volume and survival in patients with locally advanced breast cancer.Breast cancer research and treatment · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
23 authors.
Funding
Abstract
backgroundThe HER2DX assay predicts long-term prognosis and pathologic complete response (pCR) in patients with early-stage human epidermal growth factor receptor 2 (HER2)-positive breast cancer receiving neoadjuvant systemic therapy but has not been evaluated in inflammatory breast cancer (IBC). PATIENTS AND
methodsHER2DX was analyzed in baseline biopsy tissues from 23 patients with stage III HER2-positive IBC on a phase II trial (NCT01796197) treated with neoadjuvant trastuzumab, pertuzumab, and paclitaxel (THP). To assess the assay's predictive accuracy for pCR in IBC, clinical-pathological features and outcomes from this IBC cohort were compared with 156 patients with stage III HER2-positive non-IBC from four different cohorts. Comparative analyses included HER2DX scores, gene signatures, and expression of individual genes between patients with IBC and non-IBC.
resultsNotable differences in clinicopathological characteristics included higher pertuzumab and chemotherapy usage and lower axillary burden in patients with IBC compared with non-IBC. In the combined cohort (n = 179), HER2DX pCR score and pertuzumab use were significant predictors of pCR, but not IBC status. The pCR rates in patients treated with trastuzumab-based chemotherapy (including IBC and non-IBC) were 68.9%, 58.5%, and 16.3% in the HER2DX pCR-high, -medium, and -low groups, respectively. Comparative gene expression analysis indicated minor differences between IBC and non-IBC affecting individual HER2, immune, and proliferation genes.
conclusionsThe HER2DX pCR score could predict pCR in stage III HER2-positive IBC following treatment with de-escalated neoadjuvant systemic therapy and in stage III HER2-positive non-IBC. Elevated pCR rates in HER2-positive IBC with high HER2DX pCR scores suggest there may be a role for treatment de-escalation in these patients and confirmatory studies are justified.
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Registered trials
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