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Clinical Trial Summary

The purpose of this study is to determine the Objective Response Rate (ORR) of zolbetuzimab as a single agent as assessed by an independent central reader. This study will also assess the ORR and Progression Free Survival (PFS) of zolbetuximab in combination with mFOLFOX6 (with or without Nivolumab) and in combination with pembrolizumab, assess the safety and tolerability, assess the effects on CLDN18.2 expression and assess the immunogenicity and immunomodulatory effects of zolbetuximab as a single agent and in combination with mFOLFOX6 (with or without Nivolumab) and in combination with pembrolizumab and in combination with fluorouracil, leucovorin or folinic acid, oxaliplatin and docetaxel (FLOT). This study will also evaluate the pharmacokinetics (PK) of zolbetuximab as a single agent and in combination with mFOLFOX6 (with or without Nivolumab) and in combination with pembrolizumab and in combination with fluorouracil, leucovorin or folinic acid, oxaliplatin and docetaxel (FLOT) and PK of oxaliplatin, fluorouracil (5-FU), and pembrolizumab in combination with zolbetuximab, evaluate health-Related Quality of Life (HRQoL), evaluate the Disease Control Rate (DCR), Duration of Response (DOR), PFS of zolbetuximab as a single agent, in combination with mFOLFOX6 (with or without Nivolumab) and in combination with pembrolizumab based on both investigator and independent central reader assessment, assess Overall Survival (OS) of zolbetuximab as a single agent and in combination with mFOLFOX6 and nivolumab and in combination with FLOT.


Clinical Trial Description

This is a study to assess the antitumor activity of zolbetuximab, an Immunoglobulin (IgG1) chimeric monoclonal antibody directed against CLDN18.2, in subjects with recurrent locally advanced or metastatic gastric or gastroesophageal junction adenocarcinoma and locoregional gastric or GEJ adenocarcinoma whose tumors are CLDN18.2 positive. For each cohort, the study consists of the following periods: pre-screening; screening; treatment; and follow-up for disease progression (or post-treatment follow-up for disease recurrence, which will be conducted for Cohort 5). In addition, there will be a survival follow-up period for Cohorts 1A, 4B, and 5 participants only. Tolerability of zolbetuximab in combination with pembrolizumab in Japanese participant(s) will be evaluated in Cohort 3A DLT assessment. Tolerability of zolbetuximab in combination with mFOLFOX6 and nivolumab in Japanese subject(s) will be evaluated in Cohort 4B, if Japanese subjects are not enrolled in the Cohort 4A DLT assessment. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03505320
Study type Interventional
Source Astellas Pharma Inc
Contact Astellas Pharma Global Development
Phone 800-888-7704
Email astellas.registration@astellas.com
Status Recruiting
Phase Phase 2
Start date June 29, 2018
Completion date December 31, 2026

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