Fox Chase Cancer Center | Philadelphia, PA
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About
This is a multicenter, global, Phase 2, open-label, 2-part, first-line study to investigate the safety, tolerability, and anti-tumor activity of ZW25 (zanidatamab) plus standard first-line combination chemotherapy regimens for selected gastrointestinal (GI) cancers. Eligible patients include those with unresectable, locally advanced, recurrent or metastatic HER2-expressing gastroesophageal adenocarcinoma (GEA), biliary tract cancer (BTC), or colorectal cancer (CRC).
Full description
Part 1 of the study will first evaluate the safety and tolerability of ZW25 plus standard first-line combination chemotherapy (XELOX, FP, or mFOLFOX6 for GEA; mFOLFOX6 with or without bevacizumab for CRC; and CisGem for BTC) and will confirm the recommended dosage (RD) of ZW25 when administered in combination with each of these multi-agent chemotherapy regimens. Then, Part 2 of the study will evaluate the anti-tumor activity of ZW25 plus combination chemotherapy in HER2-expressing GEA, BTC, and CRC.
Enrollment
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Inclusion and exclusion criteria
Inclusion:
Disease diagnosis:
Tumor measurements as per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1:
An Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0 or 1
Adequate organ function
Adequate cardiac left ventricular function, as defined by a LVEF >/= institutional standard of normal
Exclusion:
Prior treatment with a HER2-targeted agent
Prior systemic anti-cancer therapy (including investigational products) except prior adjuvant/neoadjuvant therapy, which must be completed at least 6 months prior to first study treatment dosing. For subjects with BTC and CRC the following additional exceptions apply:
Patients with certain contraindications to bevacizumab cannot be enrolled on the mFOLFOX6-2 with bevacizumab arm.
Palliative radiotherapy is allowed if completed at least 2 weeks prior to first study treatment dosing
Untreated known brain metastases (patients with treated brain metastases who are off steroids, off antiseizure medications, and stable for at least 1 month at the time of screening are eligible)
Clinically significant cardiac disease, such as ventricular arrhythmia requiring therapy, uncontrolled hypertension or any history of symptomatic congestive heart failure (CHF). Patients with known myocardial infarction or unstable angina within 6 months prior to randomization are also excluded.
QTc Fridericia (QTcF) > 470 ms. For patients with longer QTcF on initial electrocardiogram (ECG), follow-up ECG may be performed in triplicate to determine eligibility
Peripheral neuropathy > Grade 1 per NCI-CTCAE v5.0
Clinically significant interstitial lung disease
Prior or concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen
Active hepatitis B or hepatitis C infection or infection with Human Immunodeficiency Virus (HIV)-1 or HIV-2 (Exception: patients with well controlled HIV [e.g., CD4 > 350/mm3 and undetectable viral load] are eligible)
Primary purpose
Allocation
Interventional model
Masking
74 participants in 5 patient groups
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Data sourced from clinicaltrials.gov
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