Evaluation of Sonelokimab in Patients With Active Psoriatic Arthritis and Anti-TNFα Inadequate Response
IZAR-2
A Phase 3, Parallel-group, Randomized, Double-blind, 4-arm, Placebo-controlled, Multicenter Study With Risankizumab as Active Reference Arm, to Investigate the Efficacy and Safety of Subcutaneous Sonelokimab in Male and Female Participants Aged 18 Years and Over With Active Psoriatic Arthritis and Previous Inadequate Response or Intolerance to Tumor Necrosis Factor-α Inhibitors
1 other identifier
interventional
600
11 countries
135
Brief Summary
This is a study to confirm the clinical efficacy and safety of sonelokimab compared with placebo in the treatment of adults with active psoriatic arthritis who have had a previous inadequate response or intolerance to anti-tumor necrosis factor (TNF)α therapy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Oct 2024
135 active sites
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
October 11, 2024
CompletedFirst Posted
Study publicly available on registry
October 15, 2024
CompletedStudy Start
First participant enrolled
October 15, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 15, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 15, 2027
April 29, 2026
April 1, 2026
2.3 years
October 11, 2024
April 23, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Response rate of participants achieving at least a 50% improvement in the American College of Rheumatology criteria (ACR50)
Proportion of participants achieving ACR50
Week 16 compared to placebo
Secondary Outcomes (6)
Response rate of participants achieving at least 20% improvement in the American College of Rheumatology criteria (ACR20)
Week 16 compared to placebo
Response rate of participants achieving Minimal Disease Activity (MDA)
Week 16 compared to placebo
Health Assessment Questionnaire- Disability Index (HAQ-DI)
Week 16 compared to placebo
Psoriasis Area and Severity Index (PASI90)
Week 16 compared to placebo
Short- form-36 (SF-36) Physical Component Summary (PCS)
Week 16 compared to placebo
- +1 more secondary outcomes
Study Arms (4)
sonelokimab dose 1 with an induction regimen
EXPERIMENTALSubjects randomized to this arm will receive sonelokimab dose 1 subcutaneously (SC) as an induction regimen of 4 doses , followed by sonelokimab SC every 4 weeks (Q4W) maintenance dosing starting at Week 8.
sonelokimab dose 2 with an induction regimen
EXPERIMENTALSubjects randomized to this arm will receive sonelokimab dose 2 SC as an induction regimen of 4 doses, followed by sonelokimab SC Q4W maintenance dosing starting at Week 8.
Placebo
PLACEBO COMPARATORSubjects randomized to this arm will receive placebo SC
risankizumab
ACTIVE COMPARATORSubjects randomized to this arm will receive risankizumab SC
Interventions
Sonelokimab
Eligibility Criteria
You may qualify if:
- Participants must be ≥18 years of age .
- Participants have a confirmed diagnosis of psoriatic arthritis (PsA) per the 2006 Classification for Psoriatic Arthritis (CASPAR) criteria with symptoms for ≥6 months before the Screening Visit.
- Participants have active disease (defined by a 68 tender joint count \[TJC68\] of ≥3 and a 66 swollen joint count \[SJC66\] of ≥3).
- Participants have current active plaque psoriasis (PsO) or a dermatologist-confirmed history of plaque PsO.
- Participants test negative for both rheumatoid factor and anti-cyclic citrullinated peptide at the Screening Visit.
- Participants must have received 1 or more TNFα inhibitors for PsA or PsO and must have experienced an inadequate response to treatment with at least one TNFα inhibitor(s) given at an approved dose for ≥3 months or have stopped treatment due to safety/tolerability problems after ≥1 administration of a TNFα inhibitor.
You may not qualify if:
- Participants with a known hypersensitivity to sonelokimab or any of its excipients.
- Participants with a known hypersensitivity, or any contraindication, to risankizumab or any of its excipients or component of the container.
- Participants who have a diagnosis of chronic inflammatory conditions other than PsO or PsA.
- Participants with a diagnosis of inflammatory bowel disease.
- Participants who have experienced a period of ≥3 consecutive weeks of unexplained diarrhea in the 24 weeks before the Baseline Visit.
- Participants who have an established diagnosis of arthritis mutilans.
- Previous exposure to sonelokimab.
- Participants who have ever received biologic immunomodulating agents for PsA or PsO whether investigational or approved, except for those targeting TNFα
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (135)
Clinical Site
Avondale, Arizona, 85392, United States
Clinical Site
Chandler, Arizona, 85225, United States
Clinical Site
Flagstaff, Arizona, 86001, United States
Clinical Site
Mesa, Arizona, 85210, United States
Clinical Site
Phoenix, Arizona, 85032, United States
Clinical Site
Scottsdale, Arizona, 85260, United States
Clinical Site
Tucson, Arizona, 85748, United States
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Jonesboro, Arkansas, 72401, United States
Clinical Site
La Jolla, California, 92037, United States
Clinical Site
Pomona, California, 91767, United States
Clinical Site
San Diego, California, 92108, United States
Clinical Site
Santa Monica, California, 90404, United States
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Thousand Oaks, California, 91360, United States
Clinical Site
Upland, California, 91786, United States
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Avon Park, Florida, 33825, United States
Clinical Site
Clearwater, Florida, 33765, United States
Clinical Site
Hialeah, Florida, 33016, United States
Clinical Site
Miami Gardens, Florida, 33014, United States
Clinical Site
Tampa, Florida, 33607, United States
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Zephyrhills, Florida, 33542, United States
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Gainesville, Georgia, 30501, United States
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Springfield, Illinois, 62702, United States
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Lake Charles, Louisiana, 70605, United States
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Baltimore, Maryland, 21224-6821, United States
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Grand Blanc, Michigan, 48439-2451, United States
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Brooklyn, New York, 11201, United States
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Rochester, New York, 14642, United States
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Charlotte, North Carolina, 28262, United States
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Leland, North Carolina, 28451, United States
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Middleburg Heights, Ohio, 44130, United States
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Portland, Oregon, 97239, United States
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Duncansville, Pennsylvania, 16635, United States
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Jackson, Tennessee, 38305, United States
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Memphis, Tennessee, 38119, United States
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Murfreesboro, Tennessee, 37128, United States
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Allen, Texas, 75013, United States
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Austin, Texas, 78745, United States
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Baytown, Texas, 77521, United States
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Colleyville, Texas, 76034, United States
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Houston, Texas, 77089, United States
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Lubbock, Texas, 79424, United States
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Plano, Texas, 75024, United States
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Seattle, Washington, 98122, United States
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Beckley, West Virginia, 25801, United States
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Pazardzhik, 4400, Bulgaria
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Pleven, 5800, Bulgaria
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Plovdiv, 4000, Bulgaria
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Plovdiv, 4001, Bulgaria
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Plovdiv, 4002, Bulgaria
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Plovdiv, 4004, Bulgaria
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Rousse, 7000, Bulgaria
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Sofia, 1606, Bulgaria
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Sofia, 1784, Bulgaria
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Stara Zagora, 6003, Bulgaria
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Toronto, Ontario, M5S1B2, Canada
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Calgary, T2N 4L7, Canada
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Trois-Rivières, G9A 3X2, Canada
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Waterloo, N2J 1C4, Canada
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Winnipeg, R3A IM3, Canada
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Brno, 63800, Czechia
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Ostrava, 70200, Czechia
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Studénka, 742 13, Czechia
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Zlín, 760 01, Czechia
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Caluire-et-Cuire, 69300, France
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Montpellier, 34295, France
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Narbonne, 11100, France
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Nice, 06001, France
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Rouen, 76031, France
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Tours, 37170, France
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Tbilisi, 0102, Georgia
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Tbilisi, 0112, Georgia
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Tbilisi, 0141, Georgia
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Tbilisi, 0159, Georgia
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Tbilisi, 0179, Georgia
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Tbilisi, 0180, Georgia
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Berlin, 12161, Germany
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Berlin, 12203, Germany
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Berlin, 13125, Germany
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Dresden, 01067, Germany
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Erlangen, 91054, Germany
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Hamburg, 20095, Germany
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Herne, 44649, Germany
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Munich, 80639, Germany
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Munich, 81667, Germany
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München, 80336, Germany
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Budapest, 1027, Hungary
Clinical Site
Budapest, 1036, Hungary
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Budapest, 1036, Hungary
Clinical Site
Debrecen, H-4032, Hungary
Clinical SIte
Gyula, 5700, Hungary
Clinical Site
Hódmezővásárhely, 6800, Hungary
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Nyíregyháza, 4400, Hungary
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Székesfehérvár, 8000, Hungary
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Szolnok, 5000, Hungary
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Veszprém, 8200, Hungary
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Bialystok, 15707, Poland
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Bydgoszcz, 85-065, Poland
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Częstochowa, 42-202, Poland
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Elblag, 82-300, Poland
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Gdynia, 81-384, Poland
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Krakow, 30-002, Poland
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Krakow, 30-149, Poland
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Krakow, 31-501, Poland
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Lodz, 91-363, Poland
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Nadarzyn, 05-830, Poland
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Poznan, 60-324, Poland
Clinical Site
Poznan, 60-446, Poland
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Poznan, 60-693, Poland
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Poznan, 61-397, Poland
Clinical Site
Sochaczew, 96-500, Poland
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Swidnica, 58100, Poland
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Warsaw, 00-874, Poland
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Warsaw, 02-118, Poland
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Warsaw, 02-665, Poland
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Warsaw, 02-677, Poland
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Warsaw, 03-291, Poland
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Warsaw, 04-305, Poland
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Wołomin, 05-200, Poland
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Wroclaw, 51-685, Poland
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Wroclaw, 53-673, Poland
Clinical Site
A Coruña, 15006, Spain
Clinical Site
Bilbao, 48013, Spain
Clinical Site
Castellon, 12004, Spain
Clinical Site
Madrid, 28003, Spain
Clinical Site
Málaga, 29009, Spain
Clinical SIte
Sabadell, 08208, Spain
Clinical Site
Santiago de Compostela, 15702, Spain
Clinical Site
Santiago de Compostela, 15706, Spain
Clinical Site
Seville, 41009, Spain
Clinical Site
Seville, 41010, Spain
Clinical Site
Seville, 41013, Spain
Clinical Site
Valencia, 46010, Spain
Clinical Site
Westcliff-on-Sea, Essex, SS0, United Kingdom
Clinical Site
Barnet, EN5 3DJ, United Kingdom
Clinical Site
Leeds, LS7 4SA, United Kingdom
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 11, 2024
First Posted
October 15, 2024
Study Start
October 15, 2024
Primary Completion (Estimated)
January 15, 2027
Study Completion (Estimated)
January 15, 2027
Last Updated
April 29, 2026
Record last verified: 2026-04