This is a non-interventional, retrospective and prospective study of participants with IBD. This study will collect data to provide accurate and comprehensive information related to treatment patterns associated with biologics use or non-biological therapy in participants with moderate to severe UC and CD in routine clinical practice.~The study will have retrospective data collection from past records of participants within the last 2 years before participant's enrollment. The prospective part of the study will include one year of observation and data collection after the participant's enrollment in the study.~The study will enroll approximately 2000 participants. Participants will be enrolled in one of the two groups:~UC Participants~CD Participants~This multi-center trial will be conducted in Russia, Belarus and Kazakhstan. The overall period of observation in this study will be approximately 12 months. Participants will make 2 visits within their routine practice to the clinic after the enrollment into the study including a final visit at Month 12.
The purpose of this study is to characterize the treatment patterns associated with biologics agents use or non-biological therapy in participants with moderate to severe Ulcerative Colitis (UC) and Crohn's Disease (CD).