A trial of pembrolizumab and chemotherapy for cancer of the stomach and cancer where the food pipe joins the stomach (KEYNOTE 859)

This trial is for people with stomach cancer or cancer where the food pipe joins the stomach (gastro oesophageal junction). It is for people whose cancer:

• has grown into the surrounding tissues (locally advanced) or spread to other parts of the body (advanced)

• doesn’t have a large amount of proteins called HER2 on its surface (HER2 negative)

You can’t join this trial if your cancer has a large amount of HER2 proteins on its surface (HER2 positive). We have information about a trial looking at pembrolizumab and chemotherapy for people with HER2 positive stomach or gastro oesophageal junction cancer.