All participants will receive an intravenous infusion once every 8 weeks until vedolizumab is available through commercial channels, including reimbursement, for the participant's clinical scenario, or until participant withdrawal, whichever comes first. (Per MM approval, dosing regiman may be modified) This multicenter trial will be conducted worldwide. Participants will make multiple visits to the clinic and a final visit at 18 weeks after receiving the last dose of study infusion of vedolizumab for a safety follow-up assessment.