BI 655066 (Risankizumab) Compared to Placebo and Active Comparator (Ustekinumab) in Patients With Moderate to Severe Chronic Plaque Psoriasis

BI 655066/ABBV-066 (Risankizumab) Versus Ustekinumab and Placebo Comparators in a Randomized Double Blind trIal for Maintenance Use in Moderate to Severe Plaque Type Psoriasis (UltIMMa-1)

The purpose of this study is to assess the safety and efficacy of BI 655066/ABBV-066 (risankizumab) for the treatment of moderate to severe chronic plaque psoriasis in adult patients.

Participants were randomized to receive either placebo, ustekinumab, or risankizumab in Part A. All participants received 2 sets of injections to maintain the blind: the placebo arm received placebo for risankizumab and placebo for ustekinumab), the risankizumab arm received risankizumab and placebo for ustekinumab, and the ustekinumab arm received ustekinumab and placebo for risankizumab. Participants who received placebo in Part A switched to risankizumab in Part B; participants who received ustekinumab or risankizumab in Part A continued to receive the same treatment (ustekinumab or risankizumab) in Part B.

Inclusion criteria:

• Male or female patients with age ≥18 years at screening.

• Have a diagnosis of chronic plaque psoriasis (with or without psoriatic arthritis) for at least 6 months before the first administration of study drug.

• Have stable moderate to severe chronic plaque psoriasis with or without psoriatic arthritis at both Screening and Baseline (Randomisation):

  1. Have an involved body surface area (BSA) ≥10% and
  2. Have a Psoriasis Area and Severity Index (PASI) score ≥12 and
  3. Have a static Physician Global Assessment (sPGA) score of ≥3.

• Must be candidates for systemic therapy or phototherapy for psoriasis treatment, as assessed by the investigator.

• Must be a candidate for treatment with Stelara® (ustekinumab) according to local label.

Exclusion criteria:

• Patients with:

  1. non-plaque forms of psoriasis (including guttate, erythrodermic, or pustular)
  2. current drug-induced psoriasis (including an exacerbation of psoriasis from beta blockers, calcium channel blockers, or lithium)
  3. active ongoing inflammatory diseases other than psoriasis and psoriatic arthritis that might confound trial evaluations according to investigator's judgment

• Previous exposure to BI 655066.

• Previous exposure to ustekinumab (Stelara®).