Evaluation of Neoadjuvant Therapy With Trastuzumab, Pertuzumab, Docetaxel, and QL1706 in Early or Locally Advanced HER2+ Breast Cancer

NCT ID: NCT07246317

Last Updated: 2025-11-28

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

188 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-15

Study Completion Date

2032-12-31

Brief Summary

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This study is a multicenter, prospective, randomized phase II trial designed to observe and evaluate the efficacy and safety of trastuzumab, pertuzumab, docetaxel combined with QL1706 versus combined with carboplatin as neoadjuvant therapy in patients with operable or locally advanced HER2-positive breast cancer.

Detailed Description

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This multicenter, randomized phase II trial evaluates the efficacy and safety of neoadjuvant therapy with trastuzumab, pertuzumab, and docetaxel plus QL1706 versus the same regimen plus carboplatin in patients with operable or locally advanced HER2-positive breast cancer.

The study will enroll 188 subjects, randomly assigned 1:1 to either the QL1706 combination arm or the carboplatin combination arm, stratified by nodal status and hormone receptor status (\<10% vs ≥10%). Both treatment groups will receive four 3-week cycles of assigned therapy followed by surgical resection and response assessment. Postoperative adjuvant treatment will be administered according to investigator discretion and guideline recommendations.

Conditions

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Breast Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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QL1706 arm

Trastuzumab, pertuzumab, docetaxel combined with QL1706, q3w, for a total of 4 cycles

Group Type EXPERIMENTAL

QL1706 injection

Intervention Type DRUG

On Day 1 of each cycle at a dose of 5 mg/kg, IV infusion

Trastuzumab (or biosimilar)

Intervention Type DRUG

On Day 1 of each cycle; 8 mg/kg IV loading dose followed by 6 mg/kg IV every 3 weeks

Pertuzumab (or biosimilar)

Intervention Type DRUG

On Day 1 of each cycle; 840 mg IV loading dose followed by 420 mg IV every 3 weeks

Docetaxel

Intervention Type DRUG

On Day 1 of each cycle at a dose of 75 mg/m², IV infusion

Standard therapy arm

Trastuzumab, pertuzumab, docetaxel combined with carboplatin, q3w, for a total of 4 cycles

Group Type ACTIVE_COMPARATOR

Trastuzumab (or biosimilar)

Intervention Type DRUG

On Day 1 of each cycle; 8 mg/kg IV loading dose followed by 6 mg/kg IV every 3 weeks

Pertuzumab (or biosimilar)

Intervention Type DRUG

On Day 1 of each cycle; 840 mg IV loading dose followed by 420 mg IV every 3 weeks

Docetaxel

Intervention Type DRUG

On Day 1 of each cycle at a dose of 75 mg/m², IV infusion

Carboplatin

Intervention Type DRUG

On Day 1 of each cycle at a dose of AUC = 4, IV infusion

Interventions

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QL1706 injection

On Day 1 of each cycle at a dose of 5 mg/kg, IV infusion

Intervention Type DRUG

Trastuzumab (or biosimilar)

On Day 1 of each cycle; 8 mg/kg IV loading dose followed by 6 mg/kg IV every 3 weeks

Intervention Type DRUG

Pertuzumab (or biosimilar)

On Day 1 of each cycle; 840 mg IV loading dose followed by 420 mg IV every 3 weeks

Intervention Type DRUG

Docetaxel

On Day 1 of each cycle at a dose of 75 mg/m², IV infusion

Intervention Type DRUG

Carboplatin

On Day 1 of each cycle at a dose of AUC = 4, IV infusion

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Signed informed consent and compliant.
2. Age 18-70 years.
3. ECOG PS 0-1; life expectancy \>6 months.
4. Histologically/cytologically confirmed primary breast cancer.
5. Primary tumor \>2cm (by local standard assessment) or node-positive disease.
6. AJCC 8th edition Stage II-IIIC (T2-T4 any N, or any T N1-3 M0) unilateral invasive breast cancer.
7. Confirmed HER2-positive (IHC 3+ or ISH positive). Note: Patients with HER2-negative primary tumor but HER2-positive nodes are eligible.
8. At least one measurable lesion per RECIST 1.1.
9. Agreement to undergo surgery if indicated after neoadjuvant therapy.
10. Willing to provide tumor tissue for biomarker analysis.
11. Adequate organ function:

* ANC ≥1.5×10⁹/L; PLT ≥100×10⁹/L; HGB ≥90 g/L
* Albumin ≥30 g/L

-. TBIL ≤1.5×ULN; ALT/AST ≤2.5×ULN (≤5×ULN if liver metastases); AKP ≤2.5×ULN
* Creatinine ≤1.5×ULN
* PT/APTT/INR ≤1.5×ULN (or within therapeutic range if on anticoagulants)
12. For women of childbearing potential: negative pregnancy test within 7 days prior to treatment; must not be breastfeeding.
13. Use of highly effective contraception during and for 3 months after treatment.

Exclusion Criteria

1. Stage IV metastatic breast cancer or patients deemed ineligible for curative surgery after neoadjuvant therapy.
2. Inflammatory breast cancer.
3. Other malignancies within 3 years, except: those treated with surgery alone and disease-free for 5 years; cured cervical carcinoma in situ, non-melanoma skin cancer, or superficial bladder cancer \[Ta, Tis, T1\].
4. Prior anti-tumor therapy (chemotherapy, endocrine, anti-HER2) or breast surgery for breast cancer within 3 years (excluding diagnostic biopsy).
5. Major surgery or significant traumatic injury within 28 days before treatment (excluding diagnostic biopsy).
6. Active or history of autoimmune diseases (e.g., autoimmune hepatitis, interstitial pneumonia, uveitis, enteritis, hypophysitis, vasculitis, nephritis, hyperthyroidism). Exceptions: vitiligo, childhood asthma in complete remission without intervention in adulthood.
7. Current use of immunosuppressants or systemic corticosteroids (\>10mg/day prednisone equivalent) within 2 weeks prior to enrollment.
8. History of severe hypersensitivity to monoclonal antibodies.
9. Known central nervous system metastases.
10. Poorly controlled concurrent illnesses, including:

* Uncontrolled hypertension (SBP\>150 or DBP\>100 mmHg on medication) or history of hypertensive crisis/encephalopathy.
* History of heart failure or systolic dysfunction (LVEF \<55%).
* Myocardial ischemia/infarction (≥Grade 2), arrhythmias (QTc≥450ms M, ≥470ms F), or CHF (≥NYHA Class II).
* Angina requiring medication; clinically significant valvular disease.
* Active HCV (RNA+), HIV+, syphilis (unless cured), or HBV (HBsAg+ with HBV DNA≥2000 IU/ml or positive qualitative test).
11. Use of Chinese patent medicines with approved anti-tumor indications within 2 weeks prior to treatment.
12. Significant bleeding tendency or clinical bleeding within 3 months; positive fecal occult blood requiring gastroscopy if persistently positive.
13. Tumor invasion or high risk of invasion into major vessels, potentially causing fatal hemorrhage.
14. Pleural, peritoneal, or pericardial effusion requiring drainage (eligible if stable after drainage).
15. Arterial/venous thromboembolic events within 6 months (e.g., CVA, TIA, DVT, PE).
16. Known hereditary or acquired bleeding/thrombotic tendencies (e.g., hemophilia).
17. Severe, non-healing wounds, active ulcers, or untreated fractures.
18. Urinary protein ≥++ confirmed by 24-hour urine protein \>1.0g.
19. Active infection, unexplained fever ≥38.5°C within 7 days, or baseline WBC \>15×10⁹/L.
20. History of drug abuse or psychiatric disorders.
21. Participation in other anti-tumor drug trials within 4 weeks.
22. Allergy to any study drug or its components.
23. Any condition deemed by the investigator to pose a safety risk or affect study completion.
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Tianjin Medical University Cancer Institute and Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Guangdong Provincial People's Hospital

Guangzhou, Guangdong, China

Site Status

The First Affiliated Hospital, Sun Yat-sen University (FAH-SYSU)

Guangzhou, Guangdong, China

Site Status

The Fourth Hospital of Hebei Medical University

Shijiazhuang, Hebei, China

Site Status

The First Affiliated Hospital of Henan University of Science & Technology

Luoyang, Henan, China

Site Status

Nanyang Central Hospital

Nanyang, Henan, China

Site Status

The West China Second University Hospital of Sichuan University (WCSUH- SCU)

Chengdu, Sichuan, China

Site Status

Tianjin Medical University Cancer Institute and Hospital

Tianjin, Tianjin Municipality, China

Site Status

Affiliated Hospital of Jiaxing University

Jiaxing, Zhejiang, China

Site Status

Countries

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China

Central Contacts

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Jin Zhang

Role: CONTACT

+8618622221173

Facility Contacts

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Kun Wang

Role: primary

86+13922118086

Ying Lin

Role: primary

86+13076873871

Cuizhi Geng

Role: primary

86+18435221693

Limin Wei

Role: primary

86+13783100995

Zheng Wang

Role: primary

86+13723010881

Rutie Yin

Role: primary

86+18180609015

Jin Zhang

Role: primary

+8618622221173

Caiping Chen

Role: primary

86+13967370819

Other Identifiers

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QL-BC-QIBA-1005

Identifier Type: -

Identifier Source: org_study_id

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