BACKGROUND: Tumor necrosis factor inhibitors (TNFi) are a mainstay of pediatric Crohn’s disease (PCD) therapy; yet not all patients respond, and others lose response over time. Combination therapy with methotrexate may improve response; however, this has not been rigorously evaluated…
To date, genome-wide association studies (GWAS) have identified 418 independent genetic risk loci contributing to inflammatory bowel disease (IBD) and its two subtypes: ulcerative colitis (UC) and Crohn’s disease (CD) (PMID:37156999)…