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CTRI Number  CTRI/2024/08/072371 [Registered on: 12/08/2024] Trial Registered Prospectively
Last Modified On: 10/12/2024
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Other 
Public Title of Study   An open-label randomized trial of zanidatamab for advanced HER2-positive biliary tract cancer 
Scientific Title of Study   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 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
EU CTR No: 2023-508219-21-00  Other 
IND: 142519  Other 
JZP598-302_Amendment 1_20Oct2023  Protocol Number 
NCT06282575  ClinicalTrials.gov 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name   
Designation   
Affiliation   
Address 




 
Phone    
Fax    
Email    
 
Details of Contact Person
Scientific Query
 
Name  Rashmi Chitgupi 
Designation  Country Head - Clinical Management 
Affiliation  PPD Pharmaceutical development Pvt Ltd. 
Address  101, A Wing, Fulcrum Hiranandani Business Park, Andheri

Mumbai
MAHARASHTRA
400099
India 
Phone  912266022900  
Fax    
Email  rashmi.chitgupi@ppd.com  
 
Details of Contact Person
Public Query
 
Name  Rashmi Chitgupi 
Designation  Country Head - Clinical Management 
Affiliation  PPD Pharmaceutical development Pvt Ltd. 
Address  101, A Wing, Fulcrum Hiranandani Business Park, Andheri


MAHARASHTRA
400099
India 
Phone  912266022900  
Fax    
Email  rashmi.chitgupi@ppd.com  
 
Source of Monetary or Material Support  
Jazz Pharmaceuticals Ireland Limited Fifth Floor, Waterloo Exchange Waterloo Road Dublin 4, Ireland D04 E5W7 
 
Primary Sponsor  
Name  Jazz Pharmaceuticals Ireland Limited 
Address  Fifth Floor, Waterloo Exchange Waterloo Road Dublin 4, Ireland D04 E5W7 
Type of Sponsor  Pharmaceutical industry-Global 
 
Details of Secondary Sponsor  
Name  Address 
Ms PPD Pharmaceutical Development India Pvt Ltd  101 A Wing, Fulcrum, Hiranandani Business Park, Sahar Road, Andheri East, Mumbai - 400099, Maharashtra, India 
 
Countries of Recruitment     Belgium
Brazil
Chile
China
Czech Republic
Finland
France
Germany
India
Israel
Italy
Portugal
Republic of Korea
Romania
Serbia
Spain
Sweden
Taiwan
Turkey
United Kingdom
United States of America
Argentina
Canada
Japan  
Sites of Study
Modification(s)  
No of Sites = 9  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Vamshi Krishna Muddu   AIG Hospitals (A Unit of Asian Institute of Gastroenterology)  B3, Oncology Department, 1-66/AIG/2 to 5 Mind Space Road, Gachibowli, Hyderabad-500032, India
Hyderabad
TELANGANA 
9959778112

drmvkrishnaonco@gmail.com 
Dr Mangesh Balasaheb Korde   Chopda Medicare & Research Centre Pvt. Ltd; Magnum Heart Institute  3/5, Patil Lane No. 1, Laxmi Nagar, Near K.B.H. Vidyalaya, Canada Corner, Nashik-422005
Nashik
MAHARASHTRA 
9168150942

drmangeshkorde@yahoo.in 
Dr Ashok Kumar Diwan  Government Medical College and Hospital  Room No-85, Department of Radiation Oncology, Medical Square, Nagpur-440003 
Nagpur
MAHARASHTRA 
9822816608

tinuad_07@hotmail.com 
Dr Rohan Bhise   KLES Dr Prabhakar Kore Hospital & Medical Research Centre  Site Management Office, 2nd Floor, Nehrunagar, Belagavi- 590010
Belgaum
KARNATAKA 
9448866712

rohanbhise30@gmail.com 
Dr Akhil Kapoor   Mahamana Pandit Madan Mohan Malaviya Cancer Centre,   (A Unit of Department of Atomic Energy, Govt. of India), D&T Block, 1st floor, Clinical Research Secretariat (CRS) department, Banaras Hindu University Campus, Sundar Bagiya Colony, Sundarpur, Varanasi-221005
Varanasi
UTTAR PRADESH 
7597364554

kapoorakhil1987@gmail.com 
Dr Atul Sharma  Max Super Speciality Hospital, Saket (A Unit of Devki Devi Foundation)  2, Press Enclave Road, Saket, New Delhi 110017
New Delhi
DELHI 
9818548149

atul1@hotmail.com 
Dr Venugopal Arroju  Pi Health Cancer Hospital  A Unit of B10 Health Technologies Private Limited, Plot 184, Survey No 110, Phase IV, HIG-B, DLF Road, Gachibowli, Hyderabad, Serilingampally, K. V. Rangareddy
Hyderabad
TELANGANA 
9980707675

Venugopal.Arroju@picancerhospital.ai 
Dr Vineet Talwar   Rajiv Gandhi Cancer Institute and Research Centre  Department of Clinical Trials, D block, Basement 1, Sector 5, Rohini, New Delhi – 110085
New Delhi
DELHI 
9810241512

drvineettalwar@yahoo.com 
Dr Vikas Ostwal   Tata Memorial Hospital  Room No. 319, 3rd Floor, Homi Bhabha Block, Tata Memorial Centre, Dr. Ernest Borges Marg, Parel (East), Mumbai-400012
Mumbai
MAHARASHTRA 
0222414675055

dr.vikas.ostwal@gmail.com 
 
Details of Ethics Committee
Modification(s)  
No of Ethics Committees= 9  
Name of Committee  Approval Status 
IEC, MPMMCC and HBCH Varanasi  Approved 
Institutional Ethics Committee (IEC), Devki Devi Foundation   Approved 
Institutional Ethics Committee IEC I/II,  Submittted/Under Review 
Institutional Ethics Committee, Government Medical College and Hospital  Approved 
Institutional Ethics Committee, KLE Academy of Higher Education & Research  Approved 
Institutional Ethics Committee- Asian Institute of Gastroenterology  Approved 
Institutional Review Board Rajiv Gandhi Cancer Institute and Research Centre  Approved 
Magna-Care Ethics Committee   Submittted/Under Review 
PI Health Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Approved/Obtained 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: C249||Malignant neoplasm of biliary tract, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Arm B: standard-of-care treatment with CisGem with or without a PD-1/L1 inhibitor.   On Day 1 of each 21-day cycle, when administration of the treatment components coincides, a PD-1/L1 inhibitor (if given) is administered first, followed by CisGem (on Days 1 and 8). Standard of care therapy dose and schedule: Physician’s choice a of durvalumab or pembrolizumab (where approved under local regulations) Durvalumab- a) Weight less than 30 kg: 20 mg/kg IV on Day 1 of each 21-day cycle b) Weight 30kg and above: 1,500 mg IV on Day 1 of each 21-day cycle Pembrolizumab- c) 200 mg IV on Day 1 of each 21-day cycle Standard-of-care chemotherapy dose and schedule: Cisplatin 25 mg/m2 IV on Days 1 and 8 of each 21-day cycle Gemcitabine 1000 mg/m2 IV on Days 1 and 8 of each 21-day cycle 
Intervention  Arm A: zanidatamab in combination with CisGem, with or without a PD-1/L1 inhibitor.   On Day 1 of each 21-day cycle, when administration of the treatment components coincides, zanidatamab is administered first, followed by a PD-1/L1 inhibitor (if given), and then CisGem (on Days 1 and 8). Investigational dose and schedule: Zanidatamab a) Participant weight less than 70 kg: 1,800 mg IV on Day 1 of each 21-day cycle b) Weight 70 kg and above: 2,400 mg IV on Day 1 of each 21-day cycle Standard-of-care chemotherapy dose and schedule: Cisplatin 25 mg/m2 IV on Days 1 and 8 of each 21-day cycle Gemcitabine 1000 mg/m2 IV on Days 1 and 8 of each 21-day cycle 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  1. Histologically- or cytologically confirmed BTC, including GBC, ICC, or 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 with gemcitabine and a platinum agent (eg, CisGem or GEMOX) 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. Participants who have received prior adjuvant or
neoadjuvant treatment (including investigational products) for earlier stage disease are permitted as long as therapy was completed more than 6 months prior to expected date of
C1D1
4. HER2-positive disease (defined as IHC 3+; or IHC 2+/ ISH+) by IHC and ISH assay (in participants with IHC 2+ tumors) at a central laboratory on new biopsy tissue or archival tissue from the most recent biopsy. Note that fine needle aspirates (FNAs; cytology samples) and biopsies from sites of bone metastases are not acceptable. Testing may occur with tissue obtained at any time after diagnosis of BTC and before expected date of randomization.
a. When the central laboratory is available, samples must be sent to the central laboratory prior to randomization for determination of HER2 status. If it has been confirmed with the medical monitor that a central laboratory is not available, sites may use local testing for HER2 to enroll participants with IHC 3+ tumors. In this case, samples still must be sent to the central laboratory for confirmatory analyses
once the central laboratory becomes available.
5. Assessable (measurable or non-measurable) disease as defined by RECIST 1.1, per investigator assessment.
6. Male or female 18 years and above, or age (or the legal age of adulthood per country-specific regulations)
7. ECOG performance status of 0 or 1.
8. Adequate hematologic function as follows:
a. Absolute neutrophil count (ANC) greater than or equal to 1.5 × 10 (to the power of 9)/L
b. Platelet count greater than or equal to 100 × 10 (to the power of 9)/L, not requiring transfusion support
c. Hemoglobin (Hgb) greater than or equal to 9 g/dL (participants with chronic anemia that is supported by intermittent red blood cell transfusions are eligible)
9. Adequate hepatic function, as defined by both:
a. Aspartate aminotransferase (AST) less than or equal to 3 × upper limit of normal (ULN), and alanine
aminotransferase (ALT) less than or equal to 3 × ULN. For participants with liver involvement, AST
and ALT less than or equal to 5 × ULN is acceptable.
b. Total bilirubin less than or equal 1.5 × ULN, or less than or equal to 3 × ULN for participants with Gilbert’s disease
10. Adequate renal function, as defined by estimated glomerular filtration rate (GFR) greater than 50 mL/min per local institutional standard method.
11. Left ventricular ejection fraction greater than or equal to 50% as determined by either echocardiogram or multiple gated acquisition scan (MUGA).
12. Females of childbearing potential must have a negative serum/plasma or urine beta human chorionic gonadotropin (β-hCG) pregnancy test result within 3 days prior to expected date of C1D1. Females with false positive results can be enrolled if subsequent serum/plasma testing is negative.
13. Females of childbearing potential and males with a partner of childbearing potential must be willing to use 2 methods of birth control with a failure rate of less than 1% per year during the study and for 14 months after the last dose of cisplatin, 6 months after the last dose of gemcitabine, 5 months after the last dose of zanidatamab, 4 months after the last dose of pembrolizumab, and 3 months after the last dose of durvalumab.
14. Females must agree to not donate oocytes starting at screening and throughout the study period, and for at least 14 months after the last dose of cisplatin, 6 months after the last dose of gemcitabine, 5 months after the last dose of zanidatamab, 4 months after the last dose of pembrolizumab, and 3 months after the last dose of durvalumab.
15. Males must agree to use condoms and not to donate sperm starting at screening and throughout the study period, and for at least 11 months after the last dose of cisplatin, 5 months after the last dose of zanidatamab, and 3 months after the last dose of
gemcitabine.
16. Participant has life expectancy of greater than 3 months, in the opinion of the investigator.
17. The participant must provide written informed consent. Participants who elect to be pre-screened for HER2 status must provide a separate written informed consent for collection, storage, and analysis of the tumor tissue.
 
 
ExclusionCriteria 
Details  1. Prior treatment with a HER2-targeted agent, with the exception of participants who completed HER2-targeted treatment for breast cancer greater than 5 years prior to their diagnosis of BTC.
2. Prior treatment with check point inhibitors, other than durvalumab or pembrolizumab as part of the up to 2 cycles of systemic therapy allowed prior to expected date of C1D1 per Inclusion Criterion 3. Exclusionary checkpoint inhibitors include, but are not limited to
anti-PD-1, anti-PD-L1, anti-cytotoxic T lymphocyte-associated antigen (CTLA)-4 antibodies.
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. Received radiotherapy within 2 weeks of expected date of C1D1.
5. Had major surgery within 4 weeks of expected date of C1D1.
6. Total lifetime load of anthracycline exceeding 360 mg/m2 doxorubicin or equivalent.
7. Use of systemic corticosteroids administered at doses equivalent to greater than 10 mg per day of prednisone within 2 weeks of expected date of C1D1. Topical, ocular, intra-articular, intranasal, and/or inhalation corticosteroids are permitted.
8. Brain metastases: Untreated central nervous system (CNS) metastases, symptomatic CNS metastases, or radiation treatment for CNS metastases within 4 weeks of expected date of C1D1. Stable, treated brain metastases are allowed (defined as participants who are off steroids and anticonvulsants and are neurologically stable with no evidence of radiographic progression for at least 4 weeks at the time of screening).
9. Known history of or ongoing leptomeningeal disease (LMD). Participants will be eligible if LMD has been reported radiographically but is not suspected clinically by the investigator, and the participant does not have neurological symptoms of LMD.
10. Poorly controlled seizures in the judgment of the investigator.
11. Grade 2 or greater peripheral neuropathy.
12. Concurrent uncontrolled or active hepatobiliary disorders or untreated or ongoing complications after laparoscopic procedures or stent placement, including but not limited to active cholangitis, unresolved biliary obstruction, infected biloma, or abscess. Any
complications must be resolved at least 2 weeks prior to expected date of C1D1.
13. Prior or concurrent invasive malignancy whose natural history or treatment has, in the opinion of the investigator or medical monitor, the potential to interfere with the safety or efficacy assessment of the investigational regimen.
14. Severe chronic or active infections requiring systemic parenteral antibacterial, antifungal
or antiviral therapy; or any other potentially life-threatening viral or bacterial infection (participants on oral antibiotics must complete the planned course of treatment prior to expected date of C1D1).
15. Active hepatitis, including the following:
a. Acute or chronic hepatitis B (Exception: Participants who are hepatitis B surface
antigen [HBsAg] positive are eligible if they have hepatitis B virus (HBV) DNA less than 500 IU/mL or 2,500 copies/mL). Note: Participants with detectable HBsAg or detectable HBV DNA should be managed per institutional or local standards.
Participants beginning antiviral agents at screening should be treated for greater than 2 weeks prior to expected date of C1D1.
b. Infection with hepatitis C (Exceptions:
[i] Participants who have no history of curative viral treatment and are documented to be viral load negative are eligible;
[ii] Participants who have completed curative viral therapy greater than or equal to 12 weeks prior to
expected date of C1D1, and viral load is negative are eligible.)
16. Infection with human immunodeficiency virus (HIV)-1 or HIV-2. (Exception: Participants with well-controlled HIV [ie, CD4 greater than 350/mm3
and undetectable viral load] are eligible.)
17. Active tuberculosis.
18. History of allogeneic organ transplantation.
19. Active or prior autoimmune inflammatory conditions with the exception of:
a. Vitiligo or alopecia
b. Hypothyroidism stable on thyroid replacement
c. Chronic skin conditions that do not require systemic therapy
d. Celiac disease controlled by diet alone
e. Without active disease in the last 5 years after consultation with the treating physician
20. History of life-threatening hypersensitivity to monoclonal antibodies or to recombinant
proteins or excipients in the drug formulation of any of the agents in the trial (cisplatin,
gemcitabine, the selected PD-1/L1 inhibitor, or zanidatamab).
21. Known hypersensitivity to any components of the combination therapy.
22. Ongoing, clinically significant toxicity (Grade 2 or higher) associated with prior cancer therapies, with the exception of alopecia.
23. QTc Fridericia (QTcF) greater than 470 ms. Note: For participants with longer QTcF on initial
electrocardiogram (ECG), follow-up ECG may be performed in triplicate to determine eligibility.
24. Clinically significant cardiac disease, such as ventricular arrhythmia requiring therapy,
uncontrolled hypertension or any history of symptomatic congestive heart failure (CHF).
Participants with known myocardial infarction or unstable angina within 6 months prior
to expected date of C1D1 are also excluded. Previous anticancer therapy-related CHF
must have been less than or equal to Grade 1 at the time of occurrence and must have completely resolved.
25. History of interstitial lung disease or non-infectious pneumonitis.
26. History of active primary immunodeficiency.
27. Participation in another clinical trial with an investigational medicinal product within the
last 3 months. 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Centralized 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
Progression-free survival (PFS) per the Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST 1.1) in the immunohistochemistry (IHC) 3+ subgroup  The time from the date of randomization to the date of documented disease progression (per RECIST 1.1) per investigator, or death from any cause 
 
Secondary Outcome  
Outcome  TimePoints 
a) Overall survival (OS) in the IHC 3+ subgroup
b) PFS per RECIST 1.1 in the overall population
c) OS in the overall population
 
The time from randomization to death due to any cause.  
Confirmed objective response rate (cORR) per RECIST 1.1  The time from the date of randomization to the date of documented disease progression (per RECIST 1.1) per investigator, or death from any cause. 
Duration of response (DOR) per RECIST 1.1  The time from the first objective response (CR or PR) that is subsequently confirmed to documented PD per RECIST 1.1 or death from any cause.  
Frequency, severity, seriousness, and relatedness of treatment-emergent adverse events (AEs)  From the start of dosing of study drug to 30 days after the last dose of study drug. 
Serum concentrations of zanidatamab as a function of time post-dosing  The time from the date of randomization pre dose to the End of Treatment date. 
Frequency, duration, and time of onset of anti-zanidatamab antibodies and neutralizing antibodies, if applicable, to zanidatamab  The time from the date of randomization pre dose to the End of Treatment date. If positive at EOT, retests to be performed approximately 3-month intervals until the ADA levels return to baseline or stabilize at a level acceptable to the investigator and sponsor. 
Time to definitive deterioration (TDD) from baseline in the IHC 3+ subgroup in patient-reported PF domain score as measured by the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire – Core 30 (QLQ-C30)  Time from randomization to the first confirmed clinical meaningful deterioration (ie, decrease in domain scores of ≥ 10 points from baseline) or death 
TDD from baseline in the overall population in patient-reported PF domain score as measured by the EORTC QLQ-C30  Time from randomization to the first confirmed clinical meaningful deterioration (ie, decrease in domain scores of ≥ 10 points from baseline) or death. 
TDD from baseline in IHC 3+ subgroup in patient-reported symptoms scores as measured by EORTC Quality of Life Questionnaire – Cholangiocarcinoma and Gallbladder Cancer module (QLQ-BIL21) (Pain, Jaundice, Abdominal Pain, and Pruritis)  Time from randomization to the first confirmed clinical meaningful deterioration (ie, decrease in domain scores of ≥ 10 points from baseline) or death. 
TDD from baseline in the overall population in patient-reported symptoms scores as measured by the EORTC QLQ-BIL21 (Pain, Jaundice, Abdominal Pain, and Pruritis)  Time from randomization to the first confirmed clinical meaningful deterioration (ie, decrease in domain scores of ≥ 10 points from baseline) or death. 
 
Target Sample Size   Total Sample Size="286"
Sample Size from India="13" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 3 
Date of First Enrollment (India)   20/09/2024 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  16/08/2024 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="5"
Months="11"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Open to Recruitment 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary   This is an open-label, randomized, multicenter, phase 3 study to investigate the efficacy and safety of zanidatamab plus CisGem with or without a PD-1/L1 inhibitor (physician’s choice of either durvalumab or pembrolizumab, where approved under local regulations) as first-line treatment for participants with HER2-positive, locally advanced unresectable or metastatic BTC, including gallbladder cancer (GBC), intrahepatic cholangiocarcinoma (ICC), and extrahepatic cholangiocarcinoma (ECC). Participants are allowed to receive up to 2 cycles of systemic therapy consisting of gemcitabine with a platinum agent (eg, CisGem or gemcitabine in combination with oxaliplatin [GEMOX]) with or without a PD-1/L1 inhibitor (physician’s choice of either durvalumab or pembrolizumab, where approved under local regulations) prior to randomization for their advanced or metastatic disease. 

Upon enrollment, participants will be randomized in a 1:1 ratio to 1 of 2 arms: 
Arm A (experimental arm): Zanidatamab plus CisGem (for up to 8 cycles) with or without a PD-1/L1 inhibitor 
Arm B (control arm): CisGem (for up to 8 cycles) with or without a PD-1/L1 inhibitor 
Study treatment may continue beyond the up to 8 cycles total of CisGem until investigator-assessed disease progression (per RECIST 1.1), although maximum treatment durations for the selected PD-1/L1 inhibitor (if given) per the locally approved package insert will apply.

Primary Objective: Compare the efficacy of zanidatamab plus CisGem with or without a PD-1/L1 inhibitor versus CisGem with or without a PD-1/L1 inhibitor in participants with advanced or metastatic HER2-positive BTC. 
 
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