A Study of Zolbetuximab (IMAB362) in Adults With Pancreatic Cancer

Zolbetuximab is being studied as a treatment for people with pancreatic cancer. Most people with pancreatic cancer have a protein called Claudin 18.2 (CLDN18.2) in their tumor. Zolbetuximab is thought to work by attaching to CLDN 18.2 in their tumor. This switches on the body's immune system to attack the tumor. Zolbetuximab is a potential treatment for people with pancreatic cancer. There is an unmet medical need to treat people with pancreatic cancer. This study will help find the dose of zolbetuximab to be used with chemotherapy and provide more information on this treatment in adults with metastatic pancreatic cancer. The study is currently ongoing globally. People in this study will be treated with either zolbetuximab and chemotherapy or chemotherapy by itself. The study's main aims are to find a suitable dose of zolbetuximab to be used with chemotherapy in the second part of this study, to check if zolbetuximab and chemotherapy compared to chemotherapy by itself can improve the survival of people with pancreatic cancer, and to check the safety of zolbetuximab when given with chemotherapy and how well people cope with medical problems during the study. Adults with metastatic pancreatic cancer can take part. Their cancer is metastatic, has the CLDN18.2 marker in a tumor sample and has not previously been treated with chemotherapy. Metastatic means the cancer has spread to other parts of the body. People cannot take part are if they have recently had radiotherapy and have not recovered, need to take medicines to suppress their immune system, have history of nervous system metastases from their pancreatic cancer, or they have other active cancers that need treatment. People who have a specific heart condition or infections also cannot take part. This study will be in 2 parts. Part 1 is called the Safety Lead-in Phase. Groups of people will receive 1 of 2 different doses of zolbetuximab: a lower dose or a higher dose, both together with chemotherapy. A medical