I was diagnosed with Stage 3B lung cancer in May. I did chemo and radiation and then was started on Imfinzi which I was told I would be on for 1 year. My first scan after chemo and radiation showed mass had shrunk and the last 2 scans have been unchanged. No growth and hasn’t spread but is still there. I started the Imfinzi in September so I still have a long time to be on it. Interested in others experience with Imfinzi. How long a person can be on it and if anyone had results similar to mine. My tumor is inoperable so I am really hoping this drug can help me.