A trial looking at pembrolizumab and chemotherapy for advanced non small cell lung cancer (KEYNOTE-789)

This trial is for people with advanced non small cell lung cancer (NSCLC). Advanced NSCLC can mean one of the following:

• the cancer is in both lungs

• the cancer has spread outside of the lung into the surrounding area, or elsewhere in the body

• there is a collection of fluid around the lung (pleural effusion) and this fluid contains cancer cells

It is for people who have a NSCLC that has a change (mutation) in receptors called epidermal growth factor receptors (EGFR). And that have had treatment with drugs called tyrosine kinase inhibitors (TKI).