Hi @jiatennis, I extend my welcome to you as well. You'll note that I changed the title of your discussion to be more specific to your question. I agree with @seaspray to contact Mayo directly. Here is more info about Lung Cancer Care at Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/lung-cancer/care-at-mayo-clinic/mac-20374633
I'm also tagging @burrkay on this discussion as he and his wife, who has stage 4 lung cancer, also go to Mayo, Jacksonville.

Jia, is this treatment a maintenance treatment? In other words, you continue to take it as long as you tolerate it well?