Status:

NOT_YET_RECRUITING

Primary Prevention of Thrombocytopenia Associated With T-DM1 Therapy in HER2 Positive Breast Cancer With Herombopag

Lead Sponsor:

Zhenzhen Liu

Conditions:

HER2-positive Breast Cancer

Eligibility:

All Genders

18+ years

Phase:

NA

Brief Summary

Ado-trastuzumab emtansine (T-DM1) demonstrates favorable efficacy in breast cancer treatment but is frequently associated with thrombocytopenia. Multiple studies indicate that Asian populations face a...

Eligibility Criteria

Inclusion

  • Female, age ≥18 years;
  • Histopathologically or cytologically confirmed diagnosis of breast cancer;
  • Tumor tissue confirmed as HER2-positive, defined as immunohistochemistry (IHC) showing +++, or IHC++ with fluorescence in situ hybridization (FISH) demonstrating HER2-positive status;
  • Planned to receive T-DM1 regimen based on clinical judgment;
  • ECOG PS score: 0-2;
  • Expected survival greater than 12 weeks;
  • Adequate organ and bone marrow function.

Exclusion

  • A confirmed history of severe allergic reactions to the active ingredients or excipients of the therapeutic drug;
  • Presence of other underlying diseases or comorbidities causing thrombocytopenia, such as aplastic anemia, immune thrombocytopenia, myelodysplastic syndrome, etc.;
  • Individuals with hereditary bleeding disorders, coagulation dysfunction, high bleeding risk, or a history of thrombotic events (e.g., transient ischemic attack, cerebral hemorrhage, cerebral infarction, pulmonary embolism) within 6 months prior to initial medication use;
  • Individuals with uncontrolled hypertension and a history of hypertensive crisis or hypertensive encephalopathy;
  • Pregnant or lactating women;
  • Presence of multiple factors affecting oral drug absorption, such as dysphagia, nausea/vomiting, chronic diarrhea, or intestinal obstruction;
  • History of severe psychiatric disorders, substance abuse, alcoholism, or drug addiction;
  • Currently participating in interventional clinical research treatment, or having received other investigational drugs or devices within 4 weeks prior to first dosing (individuals who failed screening for other clinical trials may be included in this study);
  • Any other factors deemed by the investigator to increase study risk, affect patient compliance with the protocol, or impact the patient's ability to complete the trial, such as physiological or psychological conditions that make participation in this study inappropriate;

Key Trial Info

Start Date :

October 31 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

October 31 2028

Estimated Enrollment :

45 Patients enrolled

Trial Details

Trial ID

NCT07198672

Start Date

October 31 2025

End Date

October 31 2028

Last Update

September 30 2025

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