新药，targets the PD-1/PD-L1 pathway，没几个人用。效果有待观察

https://www.fda.gov/news-events/press-announcements/fda-expands-approval-imfinzi-reduce-risk-non-small-cell-lung-cancer-progressing

https://www.imfinzi.com/stage-3-nsclc/about/how-imfinzi-works.html

 

https://www.biopharmadive.com/news/astrazeneca-poseidon-trial-imfinzi-lung-cancer-bristol-merck/565989/