This clinical trial is focused on studying the treatment of advanced or metastatic gastroesophageal adenocarcinoma, a type of cancer that affects the stomach and esophagus. The study will evaluate the effectiveness and safety of a combination of medications, including lenvatinib (also known by the code name E7080/MK-7902), pembrolizumab (known as MK-3475), and chemotherapy. Chemotherapy in this study may include drugs such as calcium folinate, capecitabine, fluorouracil, and oxaliplatin. These medications are used to help stop the growth of cancer cells.
The purpose of the study is to compare the new treatment combination with the standard care currently used for this type of cancer. Participants will receive either the new treatment combination or the standard care, which may include a placebo. The study will be conducted over a period of time, with regular check-ups and assessments to monitor the participants’ health and the effectiveness of the treatment. The study aims to determine if the new combination of medications can improve survival rates and delay the progression of the disease compared to the standard treatment.
Participants in the study will receive the medications through different methods, such as oral capsules or intravenous infusions, which involve delivering the medication directly into the bloodstream. The study will also monitor any side effects or adverse reactions to the treatment. By participating in this study, researchers hope to find a more effective treatment option for those suffering from advanced or metastatic gastroesophageal adenocarcinoma.



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