This clinical trial is focused on studying a type of cancer called advanced head and neck squamous cell carcinoma. This cancer can be challenging to treat, especially when it has spread to other parts of the body or cannot be removed by surgery. The study is testing a combination of two treatments: ALX148 and pembrolizumab. ALX148 is a new type of treatment that is given as an injection, while pembrolizumab, also known as Keytruda, is a well-known medication used to help the immune system fight cancer. Both treatments are administered through a vein, a method known as intravenous administration.
The purpose of this study is to see how well the combination of ALX148 and pembrolizumab works in improving the survival rate and response to treatment in patients with this type of cancer. Participants in the study will receive these treatments over a period of up to 24 months. The study will monitor how the cancer responds to the treatment and how long the effects last. It will also look at the safety of the treatment and any side effects that may occur.
Throughout the study, participants will have regular visits to the clinic for treatment and check-ups. These visits will include various tests to monitor the cancer and overall health. The study aims to provide valuable information on the effectiveness of combining ALX148 with pembrolizumab for treating advanced head and neck squamous cell carcinoma.



Belgium
Spain
The Netherlands