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Efficacy and Safety of Zanidatamab With Standard-of-care Therapy Against Standard-of-care Therapy for Advanced HER2-positive Biliary Tract Cancer

An Open-label Randomized Trial of the Efficacy and Safety of Zanidatamab With Standard-of-care Therapy Against Standard-of-care Therapy Alone for Advanced HER2-positive Biliary Tract Cancer

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06282575
Enrollment
286
Registered
2024-02-28
Start date
2024-07-19
Completion date
2030-04-01
Last updated
2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Biliary Tract Cancer

Keywords

JZP598, ZW25, HER-2 positive BIliary Tract cancer, Gallbladder Cancer, Intrahepatic Cholangiocarcinoma (ICC), Extrahepatic Cholangiocarcinoma (ECC), Zanidatamab, HER-2 overexpression, HER-2 amplification

Brief summary

The purpose of this study is to evaluate the efficacy and safety of Zanidatamab plus CisGem (Cisplatin and Gemcitabine) with or without the addition of a programmed death protein 1/ligand-1 (PD-1/L1) inhibitor (physician's choice of either Durvalumab or Pembrolizumab, where approved under local regulations) as first line of treatment for participants with human epidermal growth factor receptor 2 (HER2)-positive biliary tract cancer.

Interventions

DRUGZanidatamab

Administered intravenously (IV)

DRUGCisplatin

Administered intravenously (IV)

DRUGGemcitabine

Administered intravenously (IV)

DRUGPembrolizumab

Administered intravenously (IV)

DRUGDurvalumab

Administered intravenously (IV)

Sponsors

Jazz Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Histologically- or cytologically-confirmed Biliary Tract Cancer (BTC), including Gallbladder Cancer (GBC), Intrahepatic Cholangiocarcinoma (ICC), or Extrahepatic Cholangiocarcinoma (ECC). 2. Locally advanced unresectable or metastatic BTC and not eligible for curative resection, transplantation, or ablative therapies. 3. Received no more than 2 cycles of systemic therapy which is limited to Cisplatin and Gemcitabine (CisGem) with or without a PD-1/L1 inhibitor (physician's choice of durvalumab or pembrolizumab, where approved under local regulations) for advanced unresectable or metastatic disease. 4. HER2-positive disease (defined as IHC 3+; or IHC 2+/ ISH+) by IHC and in situ Hybridization (ISH) assay (in participants with IHC 2+ tumors) at a central laboratory on new biopsy tissue or archival tissue from the most recent biopsy. 5. Assessable (measurable or non-measurable) disease as defined by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1), per investigator assessment. 6. Male or female ≥ 18 years or age (or the legal age of adulthood per country-specific regulations). 7. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. 8. Adequate organ function 9. Females of childbearing potential must have a negative pregnancy test result. 10. Females of childbearing potential and males with a partner of childbearing potential must be willing to use 2 methods of birth control.

Exclusion criteria

1. Prior treatment with a HER2-targeted agent 2. Prior treatment with checkpoint inhibitors, other than durvalumab or pembrolizumab 3. The following BTC histologic subtypes are excluded: small cell cancer, neuroendocrine tumors, lymphoma, sarcoma, mixed tumor histology, and mucinous cystic neoplasms detected in the biliary tract region. 4. Use of systemic corticosteroids. 5. Brain metastases 6. Severe chronic or active infections 7. History of allogeneic organ transplantation. 8. Active or prior autoimmune inflammatory conditions 9. History of interstitial lung disease or non-infectious pneumonitis. 10. Participation in another clinical trial with an investigational medicinal product within the last 3 months. 11. Females who are breastfeeding 12. Any other medical, social, or psychosocial factors that, in the opinion of the investigator, could impact safety or compliance with study procedures. 13. Use of phenytoin

Design outcomes

Primary

MeasureTime frameDescription
Progression Free Survival (PFS) in participants with Immunohistochemistry (IHC) 3+ tumorsUp to 52 monthsPFS is defined as the time from the date of randomization to the date of documented disease progression, or death from any cause.

Secondary

MeasureTime frameDescription
Overall survival (OS) in participants with IHC 3+ tumorsUp to 68 monthsOS is defined as the time from randomization to death, due to any cause.
Progression Free Survival for all participantsUp to 68 monthsPFS is defined as the time from the date of randomization to the date of documented disease progression, or death from any cause.
OS for all participantsUp to 68 monthsOS is defined as the time from randomization to death, due to any cause.
Number of participants achieving Confirmed objective response rate (cORR)Up to 68 monthsConfirmed objective response rate is defined as achieving a confirmed best overall response of Complete Response (CR) or Partial Response (PR)
Duration of response (DOR)Up to 68 monthsDuration of response is defined as the time from the first objective response (CR or PR) to documented Progressive Disease (PD) or death, from any cause.
Number of Patients reporting Treatment-Emergent Adverse Events (TEAE)Up to 68 months
Maximum serum concentration of ZanidatamabUp to 68 months
Number of participants who develop Anti-drug antibodies (ADAs) to ZanidatamabUp to 68 months
Time to definitive deterioration (TDD) for participants with IHC 3+ tumors in patient-reported Physical Functioning (PF) domain score as measured by the EORTC QLQ-C30Up to 68 monthsTDD is defined as the time from randomization to the first confirmed clinical meaningful deterioration or death. European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire - Core 30 (QLQ-C30) final scores range from 0 to 100, where higher scores reflect better functioning
TDD for all participants in patient-reported PF domain score as measured by the EORTC QLQ-C30Up to 68 monthsTDD is defined as the time from randomization to the first confirmed clinical meaningful deterioration or death. EORTC QLQ-C30 final scores range from 0 to 100, where higher scores reflect better functioning.
TDD for participants with IHC 3+ tumors in patient-reported symptoms scores as measured by the EORTC QLQ-BIL21 (Pain, Jaundice, Abdominal Pain and Pruritis)Up to 68 monthsTDD is defined as the time from randomization to the first confirmed clinical meaningful deterioration or death. EORTC Quality of Life Questionnaire - Cholangiocarcinoma and Gallbladder Cancer module (QLQ-BIL21) (Pain, Jaundice, Abdominal Pain, and Pruritis) final scores range from 0 to 100, where higher scores reflect better functioning.
TDD for all participants in patient-reported symptoms scores as measured by the EORTC QLQ-BIL21 (Pain, Jaundice, Abdominal Pain, and Pruritis)Up to 68 monthsTDD is defined as the time from randomization to the first confirmed clinical meaningful deterioration or death. EORTC QLQ-BIL21 (Pain, Jaundice, Abdominal Pain, and Pruritis) final scores range from 0 to 100, where higher scores reflect better functioning.

Countries

Argentina, Belgium, Brazil, Canada, Chile, China, Czechia, Finland, France, Germany, India, Israel, Italy, Japan, Portugal, Puerto Rico, Romania, Serbia, South Korea, Spain, Sweden, Taiwan, Turkey (Türkiye), United Kingdom, United States

Contacts

CONTACTClinical Trial Disclosure & Transparency
ClinicalTrialDisclosure@JazzPharma.com215-832-3750

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 15, 2026