Trial reportSignal transduction and targeted therapy2025
Tumor microenvironment delineates differential responders to trastuzumab emtansine in HER2-positive metastatic breast cancer patients previously treated with pyrotinib: an exploratory biomarker analysis of a phase II study (NJMU-BC02).
Trial report in Signal transduction and targeted therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06125834 (Trastuzumab Emtansine), 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.
Trastuzumab Emtansine (T-DM1) Treatment in HER2-positive Breast Cancer Patients With Progressive Disease After TKIs or HP Therapy: a Multicenter, Single-arm, Phase II Study
Who cites it
2 citing papers in PubMed.
- Lenvatinib enhances the response of biliary tract cancer to anti-HER2 therapy.Signal transduction and targeted therapy · 2026Article
- Integrative single-cell RNA-seq and transcriptomic analysis uncovers cellular heterogeneity and immunotherapy resistance mechanisms in colorectal cancer.Discover oncology · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors.
Funding
Abstract
Trastuzumab emtansine (T-DM1) has been approved for the treatment of HER2-positive breast cancer. However, the efficacy of T-DM1 for patients after failure of pyrotinib and/or trastuzumab plus pertuzumab has not been clear. Additionally, no biomarker has been reported to predict the effect of T-DM1. In this multicenter phase II trial (NCT06125834), 36 participants with HER2-positive metastatic breast cancer were enrolled to receive T-DM1 therapy on a 21-day cycle until progression or unacceptable toxicity. The primary endpoint was the objective response rate (ORR). The secondary endpoints included the disease control rate (DCR), clinical benefit rate (CBR), progression-free survival (PFS), and toxicity. The primary endpoint was an ORR of 47.2% (17/36, 95% CI 30.4-64.5). The treatment exhibited a manageable toxicity profile. The DCR was 66.7% (24/36, 95% CI 49.0-81.4), and the CBR was 50.0% (18/36, 95% CI 32.9-67.1). The median PFS was 6.6 (95% CI 5.2-NA) months. Single-cell RNA sequencing revealed that the low cell cycle activity of cancer cells, activated macrophages and CD8+ T cells was associated with the good efficacy of T-DM1, which was validated in a neoadjuvant cohort. This study suggests that T-DM1 is effective with a measurable safety profile in patients with metastatic HER2-positive breast cancer after failure of pyrotinib and/or trastuzumab plus pertuzumab. Our preliminary findings suggest potential biomarkers that may help predict T-DM1 efficacy, generating hypotheses for novel therapeutic targets that may address T-DM1 resistance.
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