Breast cancer
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Female, aged 18–70 years, body weight 50–67 kg, diagnosed with breast cancer, immunohistochemistry showing hormone receptor-negative (ER- and PR-), HER2 +++ or HER2 ++ with FISH confirmation of HER2 amplification; 2. Clinical TNM stage II–III; 3. Breast MRI reveals a unilateral, solitary lesion; 4. ECOG performance status of 0 or 1; 5. No peripheral neuropathy; 6. Adequate baseline bone marrow and organ function, defined as: absolute neutrophil count >=1500/mm^3, platelet count >=100,000/mm^3, hemoglobin concentration >=8 g/dL; serum creatinine =50%; 7. Written informed consent signed.
Exclusion criteria
Exclusion criteria: 1. Poor organ function (cardiac function: LVEF 1.5 times the upper limit of normal (ULN); ASAT and ALAT >1.5 times ULN, alkaline phosphatase >2.5 times ULN, total bilirubin >1.5 times ULN); 2. History of allergy to trastuzumab/pertuzumab, carboplatin, or taxane-based drugs; 3. Prior exposure to trastuzumab, carboplatin, or taxane-based drugs; 4. Concomitant use of other drugs for HER2-positive breast cancer, such as pyrotinib or other traditional Chinese medicine formulations, is prohibited during treatment; 5. Patients requiring a change in neoadjuvant treatment regimen due to disease progression during therapy; 6. Pregnant or lactating patients with breast cancer; 7. Patients with concomitant severe systemic diseases and/or uncontrolled infections that preclude enrollment in this study; 8. History of partial mastectomy for prior breast disease, including phyllodes tumor; 9. Severe cardiovascular or cerebrovascular diseases within 6 months prior to randomization (e.g., unstable angina, chronic heart failure, uncontrolled hypertension >=150/90 mmHg, myocardial infarction, or cerebrovascular accident); 10. Presence of psychiatric disorders or cognitive impairment preventing understanding of the trial protocol and its side effects, or inability to complete the trial protocol and follow-up (systematic assessment required prior to enrollment); 11. Lack of personal freedom or independent legal capacity.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pathological complete response rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| Objective response rate;Event-free survival;Overall survival;Safety endpoints (gastrointestinal reactions, hematologic toxicity, etc., >= Grade 3 adverse events); | — |
Countries
China
Contacts
The First Affiliated Hospital of Xi 'an Jiaotong University