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ZW25

Phase 2

HER2-amplified Biliary Tract Cancers | Small molecule | Oncology |Jazz Pharmaceuticals plc|Last Updated: Sep 15, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment87
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04466891A Study of ZW25 (Zanidatamab) in Subjects With Advanced or Metastatic HER2-Amplified Biliary Tract CancersPHASE2 COMPLETED 87Oct 1, 2020Jul 11, 2024Sep 15, 202567 United States, Canada +7
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Study Endpoints
Primary Endpoints
Confirmed Objective Response Rate (ORR) by Independent Central Review (ICR)
Up to 34 months

Number of participants who achieved a confirmed best overall response (BOR) of either complete response (CR) or partial response (PR) during treatment per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. Complete response (CR) is defined as a disappearance of all target and non-target lesions and partial response (PR) is defined as at least a 30% decrease in the sum of diameters of all target lesions.

Secondary Endpoints
Duration of Response (DOR) by ICR
Up to 45 months
DOR ≥ 16 Weeks by ICR
24 weeks, up to 45 months
Disease Control Rate (DCR) by ICR
Up to 45 months
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
ZW25 (Zanidatamab) MonotherapyEXPERIMENTAL -
Interventions
NameTypeDescription
ZW25 (Zanidatamab)DRUGAdministered intravenously
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites67

Inclusion Criteria: * Histologically- or cytologically-confirmed BTC, including ICC, ECC or GBC. * Locally advanced or metastatic BTC and not eligible for curative resection, transplantation, or ablative therapies. * Received at least 1 prior gemcitabine-containing systemic chemotherapy regimen for...

Countries:United StatesCanadaChileChinaFranceItalySouth KoreaSpainUnited Kingdom
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