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



Status:Active, not recruiting
Conditions:Colitis, Irritable Bowel Syndrome (IBS), Gastrointestinal, Crohns Disease
Therapuetic Areas:Gastroenterology
Healthy:No
Age Range:18 - 99
Updated:3/27/2019
Start Date:September 13, 2011
End Date:January 31, 2020

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A Phase 3, Randomized, Double-blind, Placebo-controlled, Parallel-group, Multicenter Study to Evaluate the Safety and Efficacy of Ustekinumab Maintenance Therapy in Subjects With Moderately to Severely Active Crohn's Disease

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.

The main purpose of this study is to determine whether additional ustekinumab treatment is
beneficial in patients with moderately to severely active Crohn's disease who initially had a
clinical response to IV ustekinumab in one of the 2 initial induction studies (the
CNTO1275CRD3001 ["UNITI-1"] or CNTO1275CRD3002 ["UNITI-2"] induction studies). The
maintenance treatment will be injections in the skin (given subcutaneously, or "SC") of 90 mg
ustekinumab either every 8 weeks or 12 weeks, and the effects (both the benefits and any side
effects or adverse events) will be compared to SC placebo injections (otherwise identical
except without ustekinumab). Patients who responded to IV ustekinumab in the UNITI-1
(NCT01369329) or UNITI-2 (NCT01369342) induction studies will be put into one of these 3
groups by chance (randomly, like rolling dice). The study will be double-blinded (so that
neither patients nor study personnel know the identity of the assigned treatment). Patients
who are randomized to either SC placebo or 90mg ustekinumab SC every 12 weeks who experience
worsening in their Crohn's Disease symptoms (per the study loss of response criteria) will
have their treatment adjusted so that they will instead start to receive 90mg ustekinumab SC
every 8 weeks. All patients from the UNITI-1 or UNITI-2 studies (in addition to the patients
described above who responded to IV ustekinumab) will be eligible to enter this study,
provided the Week 8 visit in those trials was completed and study requirements are still met.
Patients who are not in clinical response to IV placebo or ustekinumab in UNITI-1 or UNITI-2
will receive both IV and SC study agent at the first visit of this study (week 0). Patients
previously receiving IV placebo will receive ustekinumab 130 mg IV at week 0 (and SC
placebo), and patients previously receiving IV ustekinumab will receive 90 mg ustekinumab SC
at week 0 (as well as IV placebo). If these patients are in clinical response 8 weeks later,
they will receive 90 SC ustekinumab at that week8 visit, and will continue to receive
Ustekinumab (every 8 weeks for participants not in response to IV Ustekinumab and every 12
weeks for participants not in response to IV Placebo) throughout the rest of the study
(provided they otherwise remain eligible). Patients in clinical response to IV placebo
induction dosing will continue to receive SC placebo. The main part of this study, also
called the maintenance portion, will last 44 weeks. After week 44, all participants who are
continuing to do well will be eligible to continue to receive study agent in the second part
of the study, a long term extension where the study agent will continue to be administered up
to week 252. Participants who discontinue study agent, either during the study, or after week
252, will be asked to return for a final safety follow-up visit 20 weeks after they last
received study agent.

Patients in response to IV ustekinumab will be randomized to receive either placebo (Group
1), Ustekinumab 90 mg SC every 12 weeks (Group 2), or Ustekinumab 90mgSC every 8 weeks (Group
3). If patients in Groups 1 or 2 lose response, they will cross over to receive ustekinumab
90mg every 8 weeks. Other populations (nonresponders to prior IV ustekinumab or IV placebo)
will receive ustekinumab at Week0 (either 90mg SC or 130mg IV, respectively) and continue SC
ustekinumab if in response at Week 8, Placebo IV responders will continue to receive Placebo
SC q4w.

Inclusion Criteria:

- Patients who received study agent at the start of study CNTO1275CRD3001 or
CNTO1275CRD3002 and completed the Week 8 visit. 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
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