A Trial of SHR-A1811 Compared to Other Antitumor Therapies as Neoadjuvant Treatments in Early-stage or Locally Advanced HER2-positive Breast Cancer

NCT ID: NCT07196774

Last Updated: 2026-01-30

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

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

740 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-10-23

Study Completion Date

2028-12-31

Brief Summary

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This study is a multicenter, randomized, open-label, parallel Phase III clinical trial. 650 early-stage or locally advanced breast cancer participants will be enrolled and randomly assigned to SHR-A1811 monotherapy group (trial group) or TCbHP treatment group (control group) at a 1:1 ratio. Participants will receive neoadjuvant treatments of SHR-A1811 or TCbHP, while those who have completed neoadjuvant therapy and are suitable for surgery must undergo surgical treatment. The participants will be evaluated on tumor efficacy through postoperative pathological assessment by IRC and pathologists from the research center. The primary endpoint will be tpCR evaluated by IRC. Participants who complete surgical treatment will be followed up for at least 3 years at study endpoints such as EFS, DFS, and DDFS.

Detailed Description

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Conditions

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Early-stage or Locally Advanced HER2-positive 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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SHR-A1811 Group

Group Type EXPERIMENTAL

SHR-A1811 for Injection

Intervention Type DRUG

SHR-A1811 for injection.

Docetaxel+Carboplatin+Trastuzumab+Pertuzumab Group

Group Type ACTIVE_COMPARATOR

Docetaxel injection

Intervention Type DRUG

Docetaxel injection.

Trastuzumab Injection

Intervention Type DRUG

Trastuzumab injection.

Carboplatin for Injection

Intervention Type DRUG

Carboplatin for injection.

Pertuzumab Injection

Intervention Type DRUG

Pertuzumab injection.

Interventions

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SHR-A1811 for Injection

SHR-A1811 for injection.

Intervention Type DRUG

Docetaxel injection

Docetaxel injection.

Intervention Type DRUG

Trastuzumab Injection

Trastuzumab injection.

Intervention Type DRUG

Carboplatin for Injection

Carboplatin for injection.

Intervention Type DRUG

Pertuzumab Injection

Pertuzumab injection.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Females treated for the first time, 18-75 years old;
2. ECOG score 0-1;
3. Has pathological diagnosis that meets the criteria: confirmed HER2 positive;
4. Results of laboratory tests meet the enrollment requirements;
5. Pregnancy test result must be negative and must agree to contraception;
6. Has signed the informed consent form.

Exclusion Criteria

1. Confirmed HER2 negative;
2. Has tumor-related medical history or treatment history;
3. Has severe combined disease/medical history and treatment history;
4. Has received treatment with systemic immunostimulants or immunosuppressants;
5. Be allergic to the test drug;
6. Participate in other clinical trials simultaneously;
7. Has received vaccine within 30 days before the first dose;
8. Has received allograft bone marrow transplantation;
9. Has given birth within one year or is breastfeeding;
10. Has history of psychological drug abuse, alcoholism or drug use.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Jiangsu HengRui Medicine Co., Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Shengjing Hospital, China Medical University

Shenyang, Liaoning, China

Site Status RECRUITING

Fudan University Shanghai Cancer Center

Shanghai, Shanghai Municipality, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Yang Wu

Role: CONTACT

+86-0518-82342973

Facility Contacts

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Caigang Liu

Role: primary

+86-024-96615-31811

Zhimin Shao

Role: primary

+86-18017312288

Other Identifiers

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SHR-A1811-312

Identifier Type: -

Identifier Source: org_study_id

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