A Study to Evaluate the Safety and Efficacy of Ustekinumab Maintenance Therapy in Patients With Moderately to Severely Active Crohn's Disease (IM-UNITI)


About this study

The primary purpose of this study is to evaluate the efficacy and safety of 2 maintenance regimens of ustekinumab administered subcutaneously to patients with moderately to severely active Crohn's disease who responded to treatment with intravenous ustekinumab in studies CNTO1275CRD3001 and CNTO1275CRD3002, compared to subcutaneously administered placebo.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Patients who received study agent at the start of study CNTO1275CRD3001 or CNTO1275CRD3002 and completed the Week 8 visit
  • Patients must agree to wait 3 months after study agent discontinuation or last administration, before receiving a live virus or bacterial vaccination

Exclusion Criteria:

  • Patients who underwent a Crohn's disease-related surgery since the start of induction study CNTO1275CRD3001 or CNTO1275CRD3002
  • Patients who started a protocol prohibited medication since the start of studies CNTO1275CRD3001 and CNTO1275CRD3002
  • Patients with protocol-specified changes to their concomitant medications due to Crohn's disease (due to lack of efficacy) since the start of studies CNTO1275CRD3001 and CNTO1275CRD3002

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

Edward Loftus, M.D.

Closed for enrollment

More information


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Additional contact information

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