Evaluating T-DXd for HER2-positive breast cancer with brain metastases after pyrotinib treatment

Efficacy and Safety of T-Dxd in the Treatment of HER2-positive Breast Cancer With Brain Metastases After Prior Pyrotinib Treatment

Observational Beijing 302 Hospital · NCT06135194

This study is testing if a new treatment called T-DXd can help women with HER2-positive breast cancer and brain metastases who have not improved after taking pyrotinib.

Quick facts

Study typeObservational
Enrollment30 (estimated)
Ages18 Years to 80 Years
SexFemale
SponsorBeijing 302 Hospital Academic / other
Drugs / interventionspyrotinib
Locations2 sites (Beijing, Beijing and 1 other locations)
Trial IDNCT06135194 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the efficacy and safety of T-DXd in women diagnosed with HER2-positive breast cancer who have developed brain metastases following treatment with pyrotinib. Participants will be evaluated for their response to T-DXd after experiencing progression of their brain metastases. The study will include women aged 18 and older with confirmed HER2-positive status and imaging evidence of brain metastases. The research will focus on monitoring treatment outcomes and safety profiles in this specific patient population.

Who should consider this trial

Good fit: Ideal candidates are women aged 18 and older with HER2-positive breast cancer and brain metastases who have shown progression after prior treatment with pyrotinib.

Not a fit: Patients with uncontrolled cardiovascular disease or significant lung conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with HER2-positive breast cancer that has spread to the brain.

How similar studies have performed: While there is ongoing research in this area, the specific combination of T-DXd after pyrotinib in this context is relatively novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

(1) Women ≥18 years of age :(2) pathological diagnosis of HER2-positive breast cancer, defined as positive immunohistochemistry detection (+++) or FISH(Fluorescent In Situ Hybridization); (3) Imaging evidence of brain metastases; (4) Progression of brain metastases after prior treatment with pyrotinib, defined as progression of new or pre-existing brain metastases during treatment with pyrotinib; (5)ECOG score ≤3 points; (6) The efficacy of T-DXd should be evaluated at least once after treatment; (7) Bone marrow and organ functions are basically normal; (8) Complete medical records

Exclusion Criteria:

* Has uncontrolled or significant cardiovascular disease
* Has history of (noninfectious) interstitial lung disease (ILD)/pneumonitis that required steroids, has current ILD/pneumonitis, or suspected ILD/ pneumonitis that cannot be ruled out by imaging at screening
* Has any medical history or condition that per protocol or in the opinion of the investigator is inappropriate for the study

Where this trial is running

Beijing, Beijing and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast Cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.