Status:

NOT_YET_RECRUITING

A Study of MR001 in Patients With Locally Recurrent or Metastatic Advanced Triple-Negative Breast Cancer (TNBC)

Lead Sponsor:

Shenzhen Majory Biotechnology Co., Ltd.

Conditions:

Triple-Negative Breast Cancer (TNBC)

Eligibility:

All Genders

18-75 years

Phase:

PHASE1

PHASE2

Brief Summary

This Phase Ib/IIa study is evaluating the safety, tolerability, pharmacokinetics, and preliminary efficacy of MR001 in patients with advanced triple-negative breast cancer (TNBC) who have progressed a...

Detailed Description

This is a dual-cohort, open-label, dose escalation and dose expansion Phase Ib/IIa study to evaluate the safety, tolerability, pharmacokinetics, and preliminary anti-tumor activity of MR001 in patient...

Eligibility Criteria

Inclusion

  • Patients with histologically or cytologically confirmed triple-negative breast cancer (TNBC).
  • Subjects with locally recurrent or metastatic advanced TNBC who have progressed after first-line or later-line therapy.
  • Presence of at least one measurable lesion according to RECIST V1.1 criteria.
  • ECOG Performance Status 0 or 1.
  • Life expectancy \>3 months.
  • Adequate organ and hematopoietic function based on the laboratory tests.
  • Voluntarily sign the informed consent form.

Exclusion

  • History of severe allergy or hypersensitivity to the investigational product or its excipients or drugs of similar chemical class (e.g., monoclonal antibodies), or contraindications to the investigational product.
  • Requirement for systemic immunosuppressive therapy within 14 days prior to the first dose of study drug or during the study.
  • Major surgery (excluding puncture biopsy) within 4 weeks prior to the first dose of study drug, or anticipated need for major surgery during this study.
  • Uncontrolled active brain metastases or leptomeningeal metastasis.
  • History of autoimmune disease requiring treatment with corticosteroids or immunosuppressive drugs.
  • Women in the period of preconception, pregnancy, or lactation.
  • Any other circumstances which the investigator considers may increase risks to subjects or interfere with the results of the trial.

Key Trial Info

Start Date :

December 1 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

September 1 2028

Estimated Enrollment :

42 Patients enrolled

Trial Details

Trial ID

NCT07208149

Start Date

December 1 2025

End Date

September 1 2028

Last Update

November 24 2025

Active Locations (1)

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Page 1 of 1 (1 locations)

1

Cancer Hospital Chinese Academy of Medical Sciences

Beijing, China