Serum Ustekinumab Concentrations Are Associated With Remission in Crohn's Disease Defined by a Serum-Based Endoscopic Healing Index.
Margaret WalsheKrzysztof BorowskiRobert BattatDavid HudesmanDouglas C WolfLauren OkadaAnjali JainMark S SilverbergPublished in: Crohn's & colitis 360 (2021)
Using the EHI, we identified a threshold UST level of 3.75 µg/mL to optimally differentiate between active and quiescent CD. These data suggest that UST serum concentrations of >3.75 µg/mL are optimally associated with endoscopic remission in CD.