This study focuses on Esophageal Squamous Cell Carcinoma (ESCC), a type of cancer that develops in the lining of the food pipe (esophagus). The study specifically targets patients whose cancer cells have high levels of a protein called HER2. The purpose is to evaluate how well adding a medication called trastuzumab works when combined with standard treatment.
The treatment plan combines several medications. Patients will receive pembrolizumab, which helps the immune system fight cancer cells, along with chemotherapy drugs including fluorouracil, oxaliplatin, and capecitabine. These medications will be given together with Trazimera (trastuzumab), which specifically targets HER2-positive cancer cells.
Most medications in this study will be given through an intravenous infusion directly into the bloodstream, while some will be taken as tablets by mouth. The treatment will continue as long as it remains beneficial for the patient and side effects are manageable. Doctors will regularly monitor the patient’s heart function and overall health throughout the treatment period.



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