Prospective follow-up observational study carried out with patients from the Virgen de Macarena University Hospital, under treatment with ustekinumab in the induction and maintenance phase in order to determine the cut-off points of the ustekinumab levels between which a clinical remission is expected in patients with inflammatory bowel disease.
Observational, prospective, single-center follow-up study carried out with patients from the area of the Virgen de Macarena University Hospital, diagnosed with chronic kidney disease, who started treatment with ustekinumab.