Yes, next year this is an important change to Medicare and the max out of pocket cost for Part D drugs will be $2000. This year it was $8000. So that is really good news for people who need expensive Tier 5 drugs!
I almost got put on this anti-fibrotic, but I did Consult with Specialist who said my pulmonary fibrosis was stable for the moment and didn't see the risk benefit of the drug and instead put me on oxygen for exertion and night sleep. Medicare covers the O2 also.