About this trial
Subjects will receive zolbetuximab with either CAPOX every 3 weeks or mFOLFOX6 every 2 weeks. The chemotherapy regimen chosen, mFOLFOX6 or CAPOX is per the treating investigator discretion and subject preference.
Study treatment will continue for a maximum of 2 years, or until disease progression per RECIST 1.1, intolerable side effects, or investigator/subject preference. Disease evaluation will occur every 8 to 9 weeks.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥ 18 years at the time of informed consent.
Eastern Cooperative Oncology Group (ECOG) Performance Status of 0-1 at the time of registration.
Histological or cytological confirmation of biliary tract carcinoma per American Joint Committee on Cancer (AJCC) staging manual v8.
Radiologically confirmed locally advanced/unresectable (per treating investigator) or metastatic disease.
Disqualifiers
Receipt of 5-fluorouracil or capecitabine in the adjuvant setting within 6 months prior to registration or patients who progressed on FOLFOX or CAPOX regimens in the past.
Previous treatment with Claudin 18.2 directed treatment.
Active infection requiring systemic therapy. NOTE: Subjects receiving prophylactic antibiotics (e.g., to prevent a urinary tract infection or chronic obstructive pulmonary disease exacerbation) are eligible for the study.
Pregnant or breastfeeding. NOTE: breast milk cannot be stored for future use while the subject is being treated on study.
Trial design
Single group
Treatments tested in this trial
Zolbetuximab
DrugZolbetuximab (800 mg/m\^2) will be administered with CAPOX or mFOLFOX6 for Cycle 1. When administered with CAPOX, for every subsequent cycle Zolbetuximab (600 mg/m\^2) will be administered. When administered with mFOLFOX6, for every subsequent cycle Zolbetuximab (400 mg/m\^2).
mFOLFOX6
DrugOxaliplatin (85 mg/m\^2), Leucovorin (400 mg/m\^2), and 5-FU (5-fluorouracil) continuous infusion (2400 mg/m\^2) will be administered every 2 weeks.
CAPOX
DrugOxaliplatin (130 mg/m\^2) and Capecitabine (750-800 mg/m\^2) will be administered every 3 weeks.
Treatment groups
Trial outcomes
Primary outcomes
Progression free survival (PFS) rate
PFS will be defined as the percentage of evaluable patients alive and progression-free (radiologically per RECIST 1.1 or clinically per treating investigator discretion) at 6 months from date of registration.
Secondary outcomes
Median Progression Free Survival (PFS)
Median PFS is defined as time from registration to date of radiological (per RECIST 1.1) or clinical (per treating investigator discretion) progression or death from any cause, whichever comes first.
Overall Survival (OS)
• OS will be defined as time from registration to either date of death due to any cause or last follow-up date.
Objective Response Rate (ORR)
ORR is defined as the proportion of subjects, in the evaluable population, who achieve a complete or partial response (CR or PR), per RECIST v 1.1.
Disease Control Rate (DCR)
DCR is defined as the proportion of subjects, in the evaluable population, who achieve a complete or partial response (CR or PR), or stable disease (SD) per RECIST v1.1.
Sponsors and contacts
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Midhun Malla
Lead sponsor
Hoosier Cancer Research Network
Sponsor institution
University of Alabama at Birmingham
Collaborator
Astellas Pharma Inc
Collaborator
University of Michigan
Collaborator
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