I received notice from my insurance yesterday that my son's Remicade is not approved. The insurance wants to switch him to a biosimilar. Anyone have experience with this? He was diagnosed last May, started Remicade in June and was symptom free within 3 days. Since last year he gained 30 lbs and has had zero symptoms. He actually ran in the Track States qualifier last night. A year ago I could barely get him out of bed. Why mess with something that works? He is 17 with mod/severe Crohns/colitis. Had fistula at diagnosis that seems to have healed.