Trial of ZW25 (Zanidatamab) in Patients With Advanced HER2-expressing Cancers

November 25, 2024 updated by: Jazz Pharmaceuticals

Phase I Trial of ZW25 in Patients With Locally Advanced (Unresectable) and/or Metastatic HER2-expressing Cancers

This is a first-in-human, 3-part study to investigate the safety, tolerability, and effectiveness of ZW25 (zanidatamab) by itself and combined with selected chemotherapy agents in patients with locally advanced (unresectable) and/or metastatic human epidermal growth factor receptor 2 (HER2)-expressing cancers. This study will also the evaluate the way the body absorbs, distributes, and eliminates ZW25 (pharmacokinetics or PK).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Part 1 of the study will evaluate increasing doses of ZW25 to find the highest dose of ZW25 that does not cause unacceptable side effects (maximum-tolerated dose or MTD), the lowest safe dose with the highest rate of effectiveness (optimal biological dose or OBD), and/or other recommended dosages (RDs) of ZW25 in up to 7 dose-specific cohorts. Eligible patients include those with selected HER2-expressing locally advanced (unresectable) and/or metastatic cancers that have progressed after receipt of all therapies known to confer clinical benefit (or ineligible to receive therapy).

Part 2 of the study will further evaluate the safety, tolerability, and efficacy of ZW25 in patients with selected HER2-expressing locally advanced (unresectable) and/or metastatic cancers that have progressed after receipt of all therapies known to confer clinical benefit (or ineligible to receive therapy) in up to 5 separate disease-specific cohorts.

Part 3 of the study will evaluate the safety, tolerability, and efficacy of ZW25 combined with selected chemotherapy agents, including paclitaxel, capecitabine, vinorelbine, or capecitabine and tucatinib. Patients with selected HER2-expressing locally advanced (unresectable) and/or metastatic cancers that have progressed after at least 1 and no more than 3 prior systemic chemotherapy regimens will be evaluated in this part of the study.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
279

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Expanded Access

Expanded Access

A way for patients with serious diseases or conditions who cannot participate in a clinical trial to gain access to a medical product that has not been approved by the U.S. Food and Drug Administration (FDA). Also called compassionate use. There are different expanded access types.
Available

Available

  • Available: Expanded access is currently available for this investigational treatment, and patients who are not participants in the clinical study may be able to gain access to the drug, biologic, or medical device being studied.
  • No longer available: Expanded access was available for this intervention previously but is not currently available and will not be available in the future.
  • Temporarily not available: Expanded access is not currently available for this intervention but is expected to be available in the future.
  • Approved for marketing: The intervention has been approved by the U.S. Food and Drug Administration for use by the public.
 outside the clinical trial. See expanded access record.

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Ottawa, Ontario, Canada, K1H 8L6
        • University of Ottawa
      • Toronto, Ontario, Canada, M5G 2M9
        • Princess Margaret Cancer Centre
    • Quebec
      • Montréal, Quebec, Canada, H3T1E2
        • Jewish General Hospital
  • Korea, Republic of
      • Seoul, Korea, Republic of, 03080
        • Seoul National University Hospital
      • Seoul, Korea, Republic of, 03722
        • Severance Hospital
      • Seoul, Korea, Republic of, 05505
        • Asan Medical Center
      • Seoul, Korea, Republic of, 06351
        • Samsung Medical Center
    • Gyeonggi-do
      • Seongnam-si, Gyeonggi-do, Korea, Republic of, 13620
        • Seoul National University Bundang Hospital
  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35294
        • University of Alabama
    • California
      • Los Angeles, California, United States, 90033
        • USC/Norris Cancer Center
      • Newport Beach, California, United States, 92663
        • Hoag Family Cancer Institute
    • Colorado
      • Aurora, Colorado, United States, 80045
        • University of Colorado Cancer Center
    • Illinois
      • Chicago, Illinois, United States, 60612
        • Rush University Medical Center
    • Tennessee
      • Nashville, Tennessee, United States, 37203
        • Sarah Cannon - Tennessee Oncology
    • Texas
      • Houston, Texas, United States, 77030
        • MD Anderson Cancer Center
      • San Antonio, Texas, United States, 78229
        • South Texas Accelerated Research Therapeutics (START)
    • Washington
      • Tacoma, Washington, United States, 98405
        • Northwest Medical Specialties

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. HER2-expressing cancer as follows:

    Part 1:

    • Cohorts 1 - 3: Any locally advanced (unresectable) and/or metastatic HER2-expressing (HER2 1+, 2+, or 3+ by IHC) cancer (including but not limited to breast, gastric, ovarian, colorectal and non-small cell lung) that has progressed after receipt of all therapies known to confer clinical benefit

    • Cohort 4:

      • HER2 IHC 2+ /FISH- breast cancer or gastroesophageal adenocarcinoma (GEA)
      • HER2 IHC 3+ or HER2 IHC 2+ /FISH+ breast cancer or GEA

      • Any other HER2 IHC 3+ or FISH+ cancer

        • HER2-overexpressing (3+ by IHC) or HER2-2+ and FISH+ breast cancer must have progressed after prior treatment with trastuzumab, pertuzumab, and T-DM1
        • HER2-overexpressing (3+ by IHC) or HER2-2+ and FISH+ GEA must have progressed after prior treatment with trastuzumab
        • Patients with colorectal cancer must be KRAS wild-type
        • Patients with NSCLC must have ALK wild-type, EGFR wild-type, and ROS1 fusion negative as determined by standard methods
    • Cohorts 5 - 6: HER2 IHC 3+ or HER2 IHC 2+ /FISH+ GEA must have progressed after prior treatment with trastuzumab
    • Cohort 7 (only at selected sites): HER2 IHC 3+, HER2 IHC 2+ /FISH+, or HER2 IHC 2+ /FISH- breast cancer must have progressed after prior treatment with trastuzumab, pertuzumab, and T-DM1

    Part 2:

    Locally advanced (unresectable) and/or metastatic cancer that has progressed after receipt of all therapies known to confer clinical benefit (unless ineligible to receive a specific therapy) as follows:

    • Cohort 1: HER2 IHC 2+/FISH- breast cancer
    • Cohort 2: HER2 IHC 3+ or HER2 IHC 2+/FISH+ breast cancer
    • Cohort 3: HER2 IHC 2+/FISH- GEA
    • Cohort 4: HER2 IHC 3+ or HER2 IHC 2+/FISH+ GEA

    • Cohort 5: Any other HER2 IHC 3+ or IHC 2+/FISH+ cancer, including the following:

      • Cohort 5a: HER2 IHC 3+ or IHC 2+/FISH+ GI cancers other than GEA (patients with colorectal cancer must be KRAS wild-type.)
      • Cohort 5b: Any other HER2 IHC 3+ or IHC 2+/FISH+ solid tumor types that are not breast or GI cancers (patients with NSCLC must have ALK wild-type, EGFR wild-type, and ROS1 fusion negative as determined by standard methods; patients with ovarian cancers must be KRAS wild type.)

    Part 3:

    Locally advanced (unresectable) and/or metastatic cancer as follows:

    • HER2 IHC 1+ or IHC2+/FISH- breast cancer patients (TGs 1, 2, or 3) who have received at least 1 and no more than 3 prior systemic chemotherapy regimens
    • HER2 IHC 3+ or IHC 2+/FISH+ breast cancer patients (TGs 1, 2, or 3) who have received prior therapy with trastuzumab, pertuzumab, and T-DM1, at least 1 and no more than 3 prior systemic chemotherapy regimens
    • HER2 IHC 2+ or 3+ FISH+ or FISH- GEA patients (TGs 1 or 2) who have received at least 1 and no more than 3 prior systemic chemotherapy regimens
    • HER2 IHC 3+ or IHC 2+/FISH+ GEA patients who have received prior therapy with trastuzumab (TG4; ZW25 + paclitaxel)
    • HER2 IHC 3+, IHC 2+/FISH+ or otherwise HER2-positive per ASCO/CAP guidelines breast cancer patients who have received prior therapy with trastuzumab, pertuzumab, and T-DM1 (TG5; ZW25 + capecitabine)
    • HER2 IHC 3+, IHC 2+/FISH+ or otherwise HER2-positive per ASCO/CAP guidelines breast cancer patients (TG6) who have received prior therapy with trastuzumab, pertuzumab, and T-DM1
    • HER2 IHC 3+, IHC2+/FISH+, or otherwise HER2-positive per ASCO/CAP guidelines breast cancer patients (TG7) who have received prior therapy with trastuzumab, pertuzumab, and T-DM1
    • HER2 IHC 3+, IHC 2+/FISH+, or otherwise HER2-positive per ASCO/CAP guidelines breast cancer patients (TG8) who have received prior therapy with trastuzumab, pertuzumab, and T-DM1
  2. ≥ 18 years of age
  3. ECOG performance status of 0 or 1
  4. Life expectancy of at least 3 months per the investigator's assessment.
  5. Adequate organ function
  6. Adequate cardiac left ventricular function, as defined by a LVEF >/= institutional standard of normal
  7. For Part 1 Cohorts 1 - 3: evaluable disease (target or non-target lesions) per RECIST version 1.1. For Part 1 Cohorts 4 - 7, and Parts 2 and 3: measurable disease (target lesions) per RECIST version 1.1
  8. Able to provide tumor sample (fresh or archived)

  9. For Part 3 TGs 7 and 8 only - based on screening brain MRI, patients must have one of the following:

    • No evidence of brain metastases
    • Untreated brain metastases not needing immediate local therapy. For patients with untreated CNS lesions > 2.0 cm on screening contrast brain MRI, discussion with and approval from the medical monitor is required prior to enrollment
    • Previously treated brain metastases that are either stable since treatment or have progressed since prior local CNS therapy, provided there is no clinical indication for immediate re-treatment with local therapy in the opinion of the investigator

Exclusion Criteria:

  1. Experimental therapies within 4 weeks before first ZW25 dosing
  2. Treatment with other cancer therapy not otherwise specified within 4 weeks before ZW25 dosing
  3. Anthracyclines within 90 days before first ZW25 dosing or lifetime load exceeding 300 mg/m² adriamycin or equivalent
  4. Trastuzumab, pertuzumab, lapatinib, or T-DM1 within 3 weeks before first ZW25 dosing
  5. Patients in Part 3 TG4 must not have received prior taxanes
  6. Patients in Part 3 TG5 must not have received prior capecitabine for metastatic disease or received any prior fam-trastuzumab deruxtecan-nxki (DS-8201a)
  7. With the exception of Part 3 TGs 7 and 8, untreated brain metastases (patients with treated brain mets who are off steroids and are stable for at least 1 month at the time of screening are eligible)
  8. Pregnant or breast-feeding women
  9. History of life-threatening hypersensitivity to monoclonal antibodies or to recombinant proteins or excipients in drug formulation
  10. Acute or chronic uncontrolled renal disease, pancreatitis or liver disease (with exception of patients with Gilbert's Syndrome, asymptomatic gall stones, liver metastases, or stable chronic liver disease per investigator assessment)
  11. Peripheral neuropathy > Grade 2
  12. Clinically significant interstitial lung disease
  13. Known active hepatitis B or C or known infection with HIV
  14. Immunosuppressive corticosteroids equivalent to > 15mg/day of prednisone within 2 weeks before first ZW25 dose
  15. QTc Fridericia (QTcF) > 450 ms
  16. Having clinically significant cardiac disease such as ventricular arrhythmia requiring therapy, uncontrolled hypertension or any history of symptomatic CHF
  17. Having known myocardial infarction or unstable angina within 6 months before first ZW25 dosing
  18. Patients in Part 3 TG7 must not have received prior capecitabine or tucatinib for metastatic disease
  19. Patients in Part 3 TG8 must not have received prior tucatinib therapy for metastatic disease

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: ZW25 (Zanidatamab) Monotherapy and ZW25 Combination Therapy
Drug: ZW25 (Zanidatamab)
ZW25 administered IV once weekly, once every 2 weeks, or once every 3 weeks. Part 1: in multiple increasing doses; Part 2: ZW25 given at the MTD, OBD, or an RD identified in Part 1; Part 3: ZW25 given at the MTD, OBD, or an RD combined with one of the following selected drug combination:
Drug: Paclitaxel
Combination therapy with ZW25 - Part 3 Treatment Groups 1 and 4
Drug: Capecitabine
Combination therapy with ZW25 - Part 3 Treatment Groups 2 and 5
Drug: Vinorelbine
Combination therapy with ZW25 - Part 3 Treatment Groups 3 and 6
Drug: Tucatinib
Combination therapy with ZW25 and Capecitabine - Part 3 Treatment Group 7
Drug: Tucatinib
Combination therapy with ZW25 - Part 3 Treatment Group 8 (may be opened if recommended by the Safety Monitoring Committee and/or the sponsor)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
The proportion of patients who experience dose-limiting toxicities (DLTs) (Part 1)
Time Frame: Up to 8 months
Up to 8 months
The proportion patients who experience laboratory abnormalities and/or adverse events as defined by CTCAE v4.03 that are related to treatment (Parts 2 and 3)
Time Frame: Throughout the duration of the study; up to 2 years
Throughout the duration of the study; up to 2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Serum concentrations of ZW25
Time Frame: Throughout the duration of the study; up to 2 years
Throughout the duration of the study; up to 2 years
The proportion of patients who develop detectable anti-drug antibodies
Time Frame: Throughout the duration of the study; up to 2 years
Throughout the duration of the study; up to 2 years
The proportion of patients with an objective response (partial response or complete response) as defined by RECIST 1.1 criteria
Time Frame: Throughout the duration of the study; up to 2 years
Throughout the duration of the study; up to 2 years
Progression free survival as defined by RECIST 1.1 criteria
Time Frame: Throughout the duration of the study; up to 2 years
Throughout the duration of the study; up to 2 years
The proportion patients who experience laboratory abnormalities and/or adverse events as defined by CTCAE v4.03 that are related to treatment (Part 1)
Time Frame: Throughout the duration of the study; up to 2 years
Throughout the duration of the study; up to 2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Jazz Pharmaceuticals

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Rajen Oza, MD, MBA, Zymeworks Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 30, 2016

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 31, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 31, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 23, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 1, 2016

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 8, 2016

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 27, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 25, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ZWI-ZW25-101

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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