Hi lgpcarter,
I have Crohn's (small and large intestine) as well as peri-anal involvement - fistulas, abscesses, whole 9 yards. I've been on entyvio for about 8 months now, and it has kept the crohn's symptoms under control. However, my peri-anal issues have gone berserk since Humira stopped working and I started on Entyvio.
Prior to starting Entyvio, tt was over 6 years before this that I had my last fistula. Since moving to Entyvio I have had 2 fistulas that have abscessed form in the last 5 months, and i'm in the process of getting a seton placed in the second one.
Entyvio is *very* new and there haven't been a lot of studies done on it. Much of what my doc and I have found regarding enyvio's effects on peri-anal involvement is effectively anecdotal, in that regard.
I'd discuss it with your doc, and see if they know of any studies that you can both go through to see if they mention any participants that had peri-anal/fistula involvement. I do not believe a study has been done yet that specifically looks at entyvio's effectiveness for treating peri-anal/fistula involvement.