This clinical trial is focused on studying treatments for recurrent or metastatic squamous cell carcinoma of the head and neck, a type of cancer that has returned or spread to other parts of the body. The study will explore the effectiveness and safety of different treatment options. One of the treatments being tested is a combination of two medications: lenvatinib (also known by the code name MK-7902) and pembrolizumab (also known by the code name MK-3475). These medications will be compared to standard chemotherapy treatments, which include drugs like docetaxel, cetuximab, capecitabine, and paclitaxel.
The purpose of the study is to determine how well these treatments work in patients whose cancer has progressed after previous treatments, including platinum-based chemotherapy and immunotherapy targeting PD-1/PD-L1 proteins. Participants in the study will be randomly assigned to receive either the combination of lenvatinib and pembrolizumab, lenvatinib alone, or one of the standard chemotherapy options. The study will monitor the response of the cancer to these treatments over time.
Throughout the study, participants will receive their assigned treatment and will be regularly monitored by healthcare professionals. The study aims to gather information on how the cancer responds to the treatments, how long the response lasts, and any side effects experienced by participants. This information will help researchers understand which treatment options may be most effective for patients with this type of cancer.



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