I would ask if the mean anti-TNF or all biologics. Entyevo is not an anti-TNF.
Short of hitting some probiotic (or even FMT) good result, or finding foods that really help manage symptoms, I do not think there are many other med options.
There is also a triple-antibiotic therapy that got a little press, and some people hope MAP stuff from CD world might eventually lead to something useful for UC.
I think there is some room ot play with the 6mp dose and even to add allopurinol to tweak 6mp metabolism.
www.ncbi.nlm.nih.gov/pmc/articles/PMC2659140/if symptoms do not get too bad, semi-management for a few years could let you hang in there to other meds come out of pipeline.
hang in there