A Phase 2 Neoadjuvant Study of Zanidatamab in Combination With Chemotherapy in Participants With HER2-positive Breast Cancer

NCT ID: NCT07102381

Last Updated: 2025-12-18

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

PHASE2

Total Enrollment

125 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-09-24

Study Completion Date

2030-08-01

Brief Summary

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The purpose of this study is to see if zanidatamab is safe and effective, when combined with chemotherapy, in treating people who has Human Epidermal Growth Factor Receptor 2 (HER2)-positive, early-stage breast cancer

Detailed Description

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Conditions

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HER2-positive Breast Cancer Breast Cancer

Keywords

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HER2-positive early breast cancer invasive breast carcinoma zanidatamab breast neoplasm

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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Zanidatamab with paclitaxel

Zanidatamab in combination with chemotherapy paclitaxel

Group Type ACTIVE_COMPARATOR

Zanidatamab

Intervention Type DRUG

Administered intravenously (IV)

Paclitaxel

Intervention Type DRUG

Administered intravenously (IV)

Zanidatamab with docetaxel and carboplatin

Zanidatamab in combination with chemotherapy docetaxel and carboplatin

Group Type ACTIVE_COMPARATOR

Zanidatamab

Intervention Type DRUG

Administered intravenously (IV)

Docetaxel

Intervention Type DRUG

Administered intravenously (IV)

Carboplatin

Intervention Type DRUG

Administered intravenously (IV)

Trastuzumab and pertuzumab with docetaxel and carboplatin

Trastuzumab and pertuzumab in combination with chemotherapy docetaxel and carboplatin

Group Type ACTIVE_COMPARATOR

Docetaxel

Intervention Type DRUG

Administered intravenously (IV)

Carboplatin

Intervention Type DRUG

Administered intravenously (IV)

Trastuzumab

Intervention Type DRUG

Administered intravenously (IV)

Pertuzumab

Intervention Type DRUG

Administered intravenously (IV)

Interventions

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Zanidatamab

Administered intravenously (IV)

Intervention Type DRUG

Paclitaxel

Administered intravenously (IV)

Intervention Type DRUG

Docetaxel

Administered intravenously (IV)

Intervention Type DRUG

Carboplatin

Administered intravenously (IV)

Intervention Type DRUG

Trastuzumab

Administered intravenously (IV)

Intervention Type DRUG

Pertuzumab

Administered intravenously (IV)

Intervention Type DRUG

Other Intervention Names

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ZW25 JZP598 ZIIHERA®

Eligibility Criteria

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Inclusion Criteria

1. Has Stage II or III histologically confirmed invasive breast carcinoma.
2. Has histologically confirmed HER2-positive breast cancer
3. Has a known hormone receptor (HR) status of the primary tumor
4. Participants with multifocal or multicentric disease are eligible if the largest tumor (which must be larger than or equal to 2 cm in diameter) is HER2-positive, and the treating physician has determined the participant should be treated as HER2-positive.
5. Agrees to undergo a mastectomy or breast conserving surgery (BCS) after neoadjuvant therapy.
6. Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
7. Adequate organ function
8. Has an LVEF ≥ 50% as determined by either ECHO or MUGA obtained within 4 weeks prior to first dose of study intervention.
9. Adequate contraceptive precautions

Exclusion Criteria

1. Has Stage IV (metastatic) breast cancer.
2. Has bilateral breast cancer.
3. Has a history of any severe and/or uncontrolled medical conditions or other conditions that, in the opinion of the investigator, could affect the participant's involvement in the study.
4. Has uncontrolled hypertension
5. Has significant symptoms from peripheral neuropathy
6. Has an active uncontrolled infection
7. Has a history of life-threatening hypersensitivity to monoclonal antibodies or to recombinant proteins or excipients in the drug formulation of zanidatamab or other study interventions.
8. Known active hepatitis B or C infection.
9. Has another malignancy diagnosed within the last 5 years. Exceptions include previously treated non melanomatous skin cancers, carcinoma in-situ, and melanoma in-situ.
10. Was treated with chemotherapy, anti-HER2 therapy, radiation therapy, endocrine therapy, or experimental therapy for invasive breast cancer
11. Is planning to receive concurrent therapy with any other investigational agent or anti-cancer therapy not specified in the protocol
12. Receipt of a live vaccine within 4 weeks prior to enrollment
13. Has a known hypersensitivity to any components of the study interventions, including chemotherapy
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Jazz Pharmaceuticals Ireland Limited

INDUSTRY

Sponsor Role collaborator

Jazz Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Rocky Mountain Cancer Centers

Denver, Colorado, United States

Site Status RECRUITING

The Oncology Institute

Lakeland, Florida, United States

Site Status RECRUITING

LSU Health Sciences Center

Shreveport, Louisiana, United States

Site Status RECRUITING

New England Cancer Specialists

Scarborough, Maine, United States

Site Status RECRUITING

Maryland Oncology Hematology

Laurel, Maryland, United States

Site Status RECRUITING

Cancer Partners of Nebraska

Lincoln, Nebraska, United States

Site Status RECRUITING

Nebraska Cancer Specialists

Omaha, Nebraska, United States

Site Status RECRUITING

Astera Cancer Care (Formerly Regional Cancer Care Associates)

East Brunswick, New Jersey, United States

Site Status RECRUITING

Medical Oncology Hematology Associates

Newark, New Jersey, United States

Site Status RECRUITING

Hematology Oncology Associates of Central New York

Camillus, New York, United States

Site Status RECRUITING

Sarah Cannon Research Institute (Nashville)

Nashville, Tennessee, United States

Site Status RECRUITING

Texas Oncology DFW

Dallas, Texas, United States

Site Status RECRUITING

Texas Oncology Gulf Coast

Houston, Texas, United States

Site Status RECRUITING

Virginia Cancer Specialists

Fairfax, Virginia, United States

Site Status RECRUITING

Virginia Oncology Associates

Norfolk, Virginia, United States

Site Status RECRUITING

Shenandoah Oncology

Winchester, Virginia, United States

Site Status RECRUITING

Northwest Cancer Specialists

Vancouver, Washington, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Clinical Trial Disclosure & Transparency

Role: CONTACT

Phone: 215-832-3750

Email: [email protected]

Other Identifiers

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2025-523204-68-00

Identifier Type: CTIS

Identifier Source: secondary_id

JZP598-208

Identifier Type: -

Identifier Source: org_study_id