ArticleCase reports in oncology
Response of Brain and Meningeal Metastases to Trastuzumab-Deruxtecan in a Patient with HER2-Low Breast Cancer: A Case Report.
Article in Case reports in oncology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 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.
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Who cites it
3 citing papers in PubMed, 4 citations in OpenAlex.
- TUXEDO-4: phase II study of trastuzumab-deruxtecan in HER2-low breast cancer with new or progressing brain metastases.Future oncology (London, England) · 2025Article
- Effect of HER2-low status on brain metastasis-free survival and survival after brain metastasis in patients with breast cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025Article
- A Dramatic Clinical Response to Trastuzumab-Deruxtecan in a Patient with HER-2 Low Breast Cancer with Untreated Leptomeningeal Metastasis and Hydrocephalus.Current oncology (Toronto, Ont.) · 2025Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nervous system metastases (CNSm) are late events associated with poor outcomes in endocrine-sensitive HER2-negative breast cancer (BC) patients, especially in the presence of leptomeningeal disease (LMD). Effective treatments are extremely limited in this setting. The antibody-drug conjugate, trastuzumab-deruxtecan (T-DXd), which combines the anti-HER2 antibody trastuzumab with a topoisomerase type 1 inhibitor, showed high efficacy not only against HER2-positive but also HER2-low metastatic BCs, expressing HER2 at a lower level. To the best of our knowledge, this is the first report of a patient with metastatic endocrine-sensitive HER2-low BC suffering from BMs associated with LMD and sustained disease control when treated with T-DXd. Several recent case series have reported the activity of T-DXd in patients with HER2-positive disease and brain metastases or LMD, but none in HER2-low patients. This case is particularly relevant since more than 50% of BCs are HER2-low.
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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 Socratic graph.