The study investigates how clinical factors and the HLA-DQA1*05 genetic marker affect the discontinuation of biologic treatments in patients with inflammatory bowel disease (IBD).
A total of 150 IBD patients were analyzed, revealing that nearly half (47%) discontinued treatment, with primary non-response (PNR) more common in those with Ulcerative Colitis (UC) and secondary loss of response (SLR) linked to flare-ups and specific drugs like infliximab.
The findings emphasize the significance of both HLA genetics and clinical factors, especially in patients using adalimumab without immunosuppressants, highlighting the complexity of treatment responses in IBD.*