Methods of treating inflammatory diseases with combination of TL1A inhibitors and IL23 inhibitors

Described herein are methods of treating inflammatory diseases or conditions such as inflammatory bowel diseases including Crohn's disease and ulcerative colitis, the methods comprising administering a TL1A inhibitor and an IL23 inhibitor contemporaneously for the duration of treatment or contemporaneously during an induction phase of treatment followed by maintenance of response with the TL1A inhibitor alone or IL23 inhibitor alone.