Assessment of Small Bowel Healing in Crohn's Disease Patients Treated With Cimzia Using Wireless Capsule Endoscopy

Inclusion Criteria: * Adults aged 18-70 with confirmed Crohn's disease that includes small bowel disease * Moderately to severely active disease (CDAI score \>220 and \< 450) * Stable doses of steroids, 5-ASA, antibiotics, Immunosuppressants Exclusion Criteria: * Any and all contraindications to the use of certolizumab pegol (including but not limited to hepatitis, infection, abscess, malignancy, congestive heart failure \[CHF\], cytopenia) * Small bowel obstruction, stricture, or any contraindication for capsule endoscopy * Previous treatment with certolizumab pegol * Are pregnant or lactating