IntroductionRecent studies have indicated that patients are showing increased interest in playing a larger role in making decisions regarding their medical treatment. Inflammatory bowel disease (IBD) is a chronic disease that manifests either as Crohn’s disease (CD) or ulcerative colitis (UC). IBD treatment is multifaceted and dependent on patient-specific factors. The selection of treatment options is mostly driven by physicians, and it is unclear to what degree patients are involved in shared decision-making (SDM). The objective of the current study is to assess preferences among Japanese patients with IBD in regard to SDM during their treatment for IBD.