High Dose Risankizumab for Psoriasis
KNOCKOUT
Decreasing Resident Memory T Cells While Increasing Clinical Durability: Higher Induction Doses of Risankizumab for Moderate-to-severe Plaque Psoriasis
1 other identifier
interventional
20
1 country
1
Brief Summary
This pilot study explores higher than standard doses of risankizumab for plaque psoriasis, to see effects on resident memory T cells and skin clearance.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Mar 2022
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 3, 2022
CompletedStudy Start
First participant enrolled
March 1, 2022
CompletedFirst Posted
Study publicly available on registry
March 16, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 7, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
July 10, 2024
CompletedResults Posted
Study results publicly available
October 24, 2025
CompletedOctober 24, 2025
October 1, 2025
1.4 years
February 3, 2022
January 23, 2025
October 9, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
CD8+ Trm1 Cells in Lesional Skin at Baseline and Week 52
The number of lesional CD8+ Trm1 cells at baseline and Week 52 was calculated by longitudinal single-cell RNA-sequencing of full-thickness skin biopsy samples. Uniform Manifold Approximation Projection (UMAP) was used for T cell subtype visualization and CD8+ Trm1 cells were identified as IFNγ+/CD8+/CD69+ T cells.
52 weeks
CD8+ Trm17 Cells in Lesional Skin at Baseline and Week 52
The number of lesional CD8+ Trm17 cells at baseline and Week 52 was calculated by longitudinal single-cell RNA-sequencing of full-thickness skin biopsy samples. Uniform Manifold Approximation Projection (UMAP) was used for T cell subtype visualization and CD8+ Trm17 cells were identified as IFNγ+/CD8+/CD69+ T cells.
52 weeks
Secondary Outcomes (2)
PASI 100 Results in Patients Receiving 4X Standard Induction Doses of Risankizumab vs. Those Receiving 2X Standard Induction Doses of Risankizumab.
Enrollment to Week 52
Safety Events
Enrollment to Week 52
Study Arms (2)
risankizumab subcutaneous injection 600 mg (4x dosing) at Weeks 0, 4, and 16
EXPERIMENTALrisankizumab subcutaneous injection 300 mg (2x dosing) at Weeks 0, 4, and 16
EXPERIMENTALInterventions
Risankizumab (Skyrizi) is an anti-IL-23 antibody being investigated for the treatment of multiple inflammatory diseases, including psoriasis, Crohn's disease, ulcerative colitis, and psoriatic arthritis.
Eligibility Criteria
You may qualify if:
- Subject has provided written consent
- Subject has the ability to comply with all study visits and procedures
- Subject is at least 18 years of age
- Subject has chronic stable plaque psoriasis for at least 6 months and with a severity of BSA greater than or equal to 10 and PASI greater than or equal to 12
- Female subjects of child-bearing potential must have a negative urine test at screening and baseline. Female subjects must be either postmenopausal, or permanently surgically sterile, or for women of child-bearing potential practicing at least one form of birth control
You may not qualify if:
- Breastfeeding or pregnant women, or women who plan to become pregnant during study period
- Participation in any other clinical trial
- Active infection with HIV, hepatitis B virus, or hepatitis C virus
- Active infection with tuberculosis or untreated latent tuberculosis
- History of known active cancer, other than non-melanoma skin cancer or cervical carcinoma in situ, in the past 3 years
- History of drug or alcohol abuse in the past 6 months, as per investigator's assessment
- History of suicidal ideation or attempts in the past 6 months
- Presence of any concurrent illness, which in the opinion of the investigator, would place the patient at unnecessary safety risk during the trial or interfere with completion of the trial
- Treatment with topical medications for psoriasis in the past 2 weeks
- Treatment with oral medications for psoriasis in the past 4 weeks
- Phototherapy for psoriasis in the past 4 weeks
- Any prior treatment with Risankizumab
- Treatment with biologic medications for psoriasis (other than Risankizumab) in the past 4 months
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Oregon Medical Research Centerlead
- AbbViecollaborator
Study Sites (1)
Oregon Medical Research Center
Portland, Oregon, 97201, United States
Related Publications (3)
Gordon KB, Strober B, Lebwohl M, Augustin M, Blauvelt A, Poulin Y, Papp KA, Sofen H, Puig L, Foley P, Ohtsuki M, Flack M, Geng Z, Gu Y, Valdes JM, Thompson EHZ, Bachelez H. Efficacy and safety of risankizumab in moderate-to-severe plaque psoriasis (UltIMMa-1 and UltIMMa-2): results from two double-blind, randomised, placebo-controlled and ustekinumab-controlled phase 3 trials. Lancet. 2018 Aug 25;392(10148):650-661. doi: 10.1016/S0140-6736(18)31713-6. Epub 2018 Aug 7.
PMID: 30097359BACKGROUNDReich K, Gooderham M, Thaci D, Crowley JJ, Ryan C, Krueger JG, Tsai TF, Flack M, Gu Y, Williams DA, Thompson EHZ, Paul C. Risankizumab compared with adalimumab in patients with moderate-to-severe plaque psoriasis (IMMvent): a randomised, double-blind, active-comparator-controlled phase 3 trial. Lancet. 2019 Aug 17;394(10198):576-586. doi: 10.1016/S0140-6736(19)30952-3. Epub 2019 Jul 4.
PMID: 31280967BACKGROUNDBlauvelt A, Leonardi CL, Gooderham M, Papp KA, Philipp S, Wu JJ, Igarashi A, Flack M, Geng Z, Wu T, Camez A, Williams D, Langley RG. Efficacy and Safety of Continuous Risankizumab Therapy vs Treatment Withdrawal in Patients With Moderate to Severe Plaque Psoriasis: A Phase 3 Randomized Clinical Trial. JAMA Dermatol. 2020 Jun 1;156(6):649-658. doi: 10.1001/jamadermatol.2020.0723.
PMID: 32267471BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Limitations and Caveats
Small sample size
Results Point of Contact
- Title
- Benjamin Ehst, MD, PhD
- Organization
- Oregon Medical Research Center, PC
Study Officials
- PRINCIPAL INVESTIGATOR
Benjamin D Ehst, MD, PhD
Oregon Medical Research Center
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 3, 2022
First Posted
March 16, 2022
Study Start
March 1, 2022
Primary Completion
August 7, 2023
Study Completion
July 10, 2024
Last Updated
October 24, 2025
Results First Posted
October 24, 2025
Record last verified: 2025-10
Data Sharing
- IPD Sharing
- Will not share