Entyvio costs $4900 per infusion, you need three loading doses in 6 weeks, then a dose every other month. It will cost about $30,000 a year. I tried getting on Entyvio Connect which is their copay assistance program which will cost you $50 per dose, however I was making too much money to enroll. They want your IRS tax returns to prove you make less than their maximum, there are several levels but it starts at $24,000 of income a year.
My insurance picked it up, I need to pay the first $3200 and they pay the rest. They only authorized me for 8 infusions.
I have had 5 infusions and have hardly noticed improvements, they say you should do at least 6 infusions before considering to give it up. Personally I don't have a high degree of confidence on Entyvio. Already been on Humira which eventually stopped working, no sense in starting Remicade since it is an anti-TNF as well.
Stelara is a remote option, on another thread I saw that it was not working for some people.
Having said all this, still give Entyvio a try, it has worked for some people.