BI 655066 / ABBV-066 (Risankizumab) in Moderate to Severe Plaque Psoriasis With Randomized Withdrawal and Re-treatment

Brief Summary:
This was a multinational, multicenter, randomized, double-blind, placebo controlled study with randomized withdrawal and retreatment, evaluating the safety and efficacy of risankizumab 150 mg subcutaneous (SC) in participants with moderate to severe chronic plaque psoriasis.

Detailed Description:
In Part A1, eligible participants were randomized at Baseline at a ratio of 4:1, stratified by weight and prior exposure to tumor necrosis factor antagonists to receive double-blind (DB) risankizumab 150 mg or placebo at Weeks 0 and 4. In Part A2, participants randomized at Baseline to receive DB placebo then received risankizumab 150 mg at Weeks 16 (Part A2) and at Week 28 and every 12 weeks up to 88 weeks (Part B); participants randomized to rizankizumab 150 mg continued to receive rizankizumab 150 mg at Week 16. Participants who received risankizumab in Part A and were nonresponders (sPGA >2) at Week 28 received risankizumab 150 mg at Week 28 and every 12 weeks up to 88 weeks (Part B). In Part B, participants who received risankizumab in Part A and were responders (sPGA ≤2) at Week 28, were rerandomized at a ratio of 1:2 to receive DB risankizumab 150 mg or placebo at Week 28 and every 12 weeks up to 88 weeks (Part B). Starting at Week 32, rerandomized participants who reached relapse (defined as sPGA ≥3) were switched to adalimumab 150 mg every 12 weeks.


Study Type: Interventional  (Clinical Trial)
Actual Enrollment: 507 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: BI 655066 / ABBV-066 (Risankizumab) Versus Placebo In a Multicenter Randomized Double-blind Study in Patients With Moderate to Severe Chronic Plaque Psoriasis Evaluating the Efficacy and Safety With Randomized Withdrawal and Re-treatment (IMMhance)
Actual Study Start Date: February 29, 2016
Actual Primary Completion Date: August 2, 2017
Actual Study Completion Date: July 26, 2018

Arms:
- Experimental: Risankizumab
- Placebo Comparator: Placebo