VOICE-Early Response to Vedolizumab and IL-23 Antagonists in Participants With Crohn's Disease: A Prospective Observational Study

Prior treatment

• Participant has CD-related surgery planned or anticipated during the study.
• Participant has prior exposure to an advanced therapy for the treatment of CD (biologic or small molecule) other than an anti-TNF (i.e., anti-integrin, anti-IL, Janus kinase inhibitors, or sphingosine-1-phosphate receptor 1). Prior failure or intolerance to 2 or more anti-TNF (i.e., infliximab, adalimumab, or certolizumab pegol) therapies in the past 3 years is also cause for exclusion.
• Participant has evidence of C. difficile toxin or is prescribed treatment for C. difficile infection, or other intestinal bacterial pathogen, ≤ 2 weeks prior to Screening.

Other illness

• Participant has an active infection at baseline requiring intravenous systemic antibiotics.
  • Note: The treating physician must have completed all appropriate baseline screening tests as per the product label.
• Participant has chronic non-inflammatory bowel disease pain.

• Participant is an adult 18 years of age or older with confirmed CD, as per standard clinical criteria which may include symptoms, endoscopy, histopathology, and imaging.
• Participant has active CD and has been prescribed as standard of care (SOC) and is planned to start VDZ or IL-23 antagonist therapy (UST, RISA, or GUS or MIR \[if approved for the treatment of CD during the recruitment period for this study\]) for the first time in accordance with the product label, as determined by the treating physician.
• Participant has a baseline PROMIS Pain Interference-SF score ≥ 15 (corresponding T-score ≥ 55) (PROMIS Pain Interference-SF 8a \[V1.1\]).
  • Score is calculated by adding score (1 to 5) for each of the 8 subcomponents.
• Participant has completed all SOC biologic work-up assessments (this may include assessment of tuberculosis, chronic infections, Clostridioides difficile infection and vaccination status per local practice).
• Ability of participant to participate fully in all aspects of this observational study. Full comprehension of consent language and informed consent must be obtained from the participant and documented.