This clinical trial is focused on studying treatments for a type of cancer called gastric or gastroesophageal junction adenocarcinoma. This cancer affects the stomach and the area where the stomach meets the esophagus. The study will explore the effectiveness and safety of new drug combinations in patients with advanced stages of this cancer, where the disease cannot be surgically removed or has spread to other parts of the body.
The trial will involve several medications, including capecitabine, calcium folinate, fluorouracil, oxaliplatin, and new investigational drugs such as Rilvegostomig (also known as AZD2936), volrustomig (MEDI5752), AZD7789, and AZD0901. These medications will be administered in different combinations to evaluate their impact on the cancer. Some of these drugs are given as tablets, while others are administered through an infusion, which means they are delivered directly into the bloodstream through a vein.
The purpose of the study is to assess how well these new drug combinations work in treating the cancer and to monitor their safety. Participants will receive treatment over a period of up to 24 months. The study will track how the cancer responds to the treatment and whether the participants remain free from disease progression for at least six months. The trial will also monitor any side effects and how the body processes the drugs. Some participants may receive a placebo as part of the study. The trial aims to provide valuable information that could lead to better treatment options for this type of cancer in the future.



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