( UK chronie here )

Your specialist or IBD nurse should be able to request antibody screening - I believe before you start Humira. Mine was really struck about it and insisted on re-testing before putting me back on Humira (tried usteki for a while) incase I developed antibodies.

You know your health best & I’m not trying to suggest your specialist missed anything - just that it may be beneficial to request Antibody screening before beginning your next biologic or biosimilar (if you do end up switching).

Sometimes my docs miss one or two things for a couple weeks because we are complex, and the NHS is drowning right now (god bless it). Mentioning it myself guarantees a slightly better quality of care/them remembering - and they never seem offended by my asking.

Wishing you all the best + spoons.