Risankizumab Long-term Remission Study

Completed · Phase 4

Conditions studied: Psoriasis

In brief

Although the newly developed biologics (drugs derived from living cells cultured in a laboratory) are highly effective in controlling psoriasis, all the biologics should be continuously injected to suppress recurrence of the disease. In this regard, the observation in the phase II clinical trial conducted by us (Laboratory for Investigative Dermatology at the Rockefeller University) was groundbreaking that just a single dose of anti-IL-23p19 antibody (risankizumab, trade name: Skyrizi, study drug in this clinical trial) administration produced disease clearance up to 66 weeks in 46% (6 of 13) of patients. However, there is a lack of understanding about immune regulation in human skin induced by anti-IL-23p19 antibody injection, and there is a need to conduct a psoriasis clinical trial for single-cell sequencing immune cells in human psoriasis skin before and after anti-IL-23p19 antibody administration, and to correlate regulatory immune cell alterations with clinical disease progression. The overall objective of the clinical trial is to study regulatory immune cell alterations induced by anti-IL-23p19 antibody administration in psoriasis patients who achieve long-term disease clearance off drugs.

Key facts

Study ID

NCT04630652

Run by

Jaehwan Kim

People needed

24

Starts

2021-04-07

Expected to finish

2025-05-13

Last updated by the study team

2026-05-27

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adult males or females with a diagnosis of plaque psoriasis for at least 6 months.
• Baseline Psoriasis Area Severity Index (PASI) score > 12.
• More than 10% body surface area has plaque psoriasis involvement.
• Willingness to forgo other available psoriasis therapies, live vaccines, and pregnancy during the trial.
• Ability and willingness to provide informed consent and comply with study requirements.

You may not qualify if…

• Non-plaque forms of psoriasis.
• Any previous treatment with agents targeting IL-12 or IL-23, including ustekinumab.
• Treatment with biologic agents within previous 3 months prior to visit 0, including adalimumab, etanercept, and infliximab.
• Treatment with immunosuppressive medications, including methotrexate, cyclosporine, oral retinoids, prednisone, or phototherapy within previous 4 weeks prior to visit 0.
• Topical psoriasis treatment within previous 2 weeks prior to visit 0, including topical corticosteroids, vitamin D analogues, retinoids, calcineurin inhibitors, salicylic acid, and coal tar.
• Any investigational study medication within previous 6 months prior to visit 0.
• History of recent or ongoing uncontrolled bacterial, viral, fungal, or other opportunistic infections.
• Positive QuantiFERON-TB Gold test. PPD tuberculin test may be substituted for QuantiFERON-TB Gold test.
• Receipt of a live vaccine (e.g., varicella, measles, mumps, rubella, cold-attenuated intranasal influenza vaccine, and smallpox) in the previous 6 weeks prior to visit 0.
• Females who are pregnant, lactating, planning on pregnancy during the study period, or unwilling to use a medically acceptable method of birth control.
• Severe, progressive, or uncontrolled renal, hepatic, hematological, gastrointestinal, pulmonary, cardiac, or neurological disease, or any other medical condition that, in the investigator's opinion, places the participant at risk by participating in this study.
• Any medical history, including laboratory results, deemed by the investigator to be likely to interfere with their participation in the study, or to interfere with the interpretation of the results, or any social condition that, in the opinion of the Investigator, might pose additional risk to the participant or confound the results of the study.

Where it is running

• VA Northern California Health Care System — Sacramento, California, United States
• University of California Davis Medical Center — Sacramento, California, United States
• The Rockefeller Univesity — New York, New York, United States

Full record on ClinicalTrials.gov

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