Evaluating SHR-A1811 for Breast Cancer Treatment

A Phase Ib/II Multicenter, Open-Label Clinical Trial of SHR-A1811 Injection in Combination With Pyrotinib or Pertuzumab or Adebrelimab or Paclitaxel for Injection (Albumin Bound) in Breast Cancer

Phase 2 Interventional Jiangsu HengRui Medicine Co., Ltd. · NCT05353361

This study is testing a new treatment called SHR-A1811, combined with other medications, to see if it helps women with breast cancer feel better and manage their disease.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment402 (estimated)
Ages18 Years to 75 Years
SexFemale
SponsorJiangsu HengRui Medicine Co., Ltd. Industry-sponsored
Drugs / interventionspertuzumab, adebrelimab, pyrotinib
Locations1 site (Nanjing, Jiangsu)
Trial IDNCT05353361 on ClinicalTrials.gov

What this trial studies

This study aims to assess the safety, tolerability, and efficacy of SHR-A1811 when used in combination with other treatments such as pyrotinib, pertuzumab, adebrelimab, or albumin-bound paclitaxel in patients diagnosed with breast cancer. It involves women aged 18 to 75 who have measurable lesions and adequate organ function. Participants will be monitored for their response to the treatment and any adverse effects experienced during the trial.

Who should consider this trial

Good fit: Ideal candidates are women aged 18 to 75 with confirmed breast cancer and a good performance status.

Not a fit: Patients with active central nervous system metastasis or those who have had recent anti-tumor treatments may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new effective option for patients with breast cancer.

How similar studies have performed: While this approach is being evaluated, similar studies have shown promise in combining targeted therapies for breast cancer treatment.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Women aged 18 to 75 (inclusive)
2. Breast cancer confirmed by histology or cytology.
3. ECOG score is 0 or 1
4. An expected survival of ≥ 12 weeks
5. At least one measurable lesion according to RECIST v1.1 criteria
6. Have adequate renal and hepatic function
7. Patients voluntarily joined the study and signed informed consent

Exclusion Criteria:

1. Have other malignancies within the past 5 years
2. Active central nervous system metastasis without surgery or radiotherapy
3. Presence with uncontrollable third space effusion
4. Have undergone other anti-tumor treatment within 4 weeks before the first dose
5. Immunosuppressant or systemic hormone therapy was used within 2 weeks prior to the first dose
6. Any active autoimmune disease or a history of autoimmune disease
7. A history of immune deficiency
8. Clinically significant cardiovascular disorders
9. Clinically significant history of lung disease
10. The toxicity from previous anti-tumor treatment has not recovered to ≤ grade I
11. Known hereditary or acquired bleeding tendency
12. Active hepatitis and liver cirrhosis
13. Presence of other serious physical or mental diseases or laboratory abnormalities

Where this trial is running

Nanjing, Jiangsu

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.