Entyvio (Vedolizumab) Long-term Safety Study: An International Observational Prospective Cohort Study Comparing Vedolizumab to Other Biologic Agents in Patients With Ulcerative Colitis or Crohn's Disease

A Double Blind Placebo-Controlled Trial of Eflornithine and Sulindac to Prevent Recurrence of High Risk Adenomas and Second Primary Colorectal Cancers in Patients With Stage 0-III Colon or Rectal Cancer, Phase III - Preventing Adenomas of the Colon With Eflornithine and Sulindac (PACES)