Testing Sonelokimab against a placebo for psoriatic arthritis
Official title: Evaluation of Sonelokimab in Patients With Active Psoriatic Arthritis and Anti-TNFα Inadequate Response
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
Interventions
Sonelokimab
Sonelokimab
Placebo
Placebo
Risankizumab
Active comparator
Canadian Sites (5)
Clinical Site
Calgary, Canada
Clinical Site
Trois-Rivières, Canada
Clinical Site
Waterloo, Canada
Clinical Site
Winnipeg, Canada
Clinical Site
Toronto, Ontario, Canada
Eligibility Criteria
See who this study is looking for14 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +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 VisitScreeningThe checks done before joining, to see whether a study fits.Read more →.
- +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.
Exclusion
- −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 VisitBaselineYour starting measurements, taken before treatment begins.Read more →.
- −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
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
Phase 3Phase 3A large study comparing a treatment against the current standard.Read more → — a large study comparing this against the current standard, usually across many hospitals.
What is being given or done in this study: Sonelokimab, PlaceboPlaceboA dummy treatment with no active medicine, used for comparison.Read more →, Risankizumab.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
- armsInterventionsModule.interventions[].name
How the study is run
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
You, the study team, and the people analysing the results would all be kept unaware of which group you are in until the study ends.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
One group receives a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → — a dummy treatment with no active medicine in it.
One group receives an existing treatment, so the two can be compared.
There are 4 groups in this study.
From the trial registry
Built from this field:
- armsInterventionsModule.armGroups[].type
Who the study is looking for
The study lists a minimum age of 18 years, with no upper limit given.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 600 people.
The study is currently expected to finish around January 2027.
The main measurement is taken over: Week 16 compared to placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more →.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Response rate of participants achieving at least a 50% improvement in the American College of Rheumatology criteria (ACR50) — measured over Week 16 compared to placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more →.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT06641089 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About SonelokimabDrug
Sonelokimab
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About PlaceboDrug
Placebo
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
About RisankizumabDrug
Active comparator
From the trial registry — its own words, unedited.
What a drug is here: A medicine — a chemical or small-molecule treatment — given as the thing being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: a minimum age of 18 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
Yes. This study includes a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group — a dummy treatment with no active medicine in it.
One group receives an existing treatment so the two can be compared.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
You, the study team, and the people analysing the results would all be kept unaware of which group you are in until the study ends.
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists a minimum age of 18 years, with no upper limit given.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: Week 16 compared to placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more →.
The study as a whole is currently expected to finish around 2027-01-15.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 600 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 9 locations, including: Calgary, Canada; Trois-Rivières, Canada; Waterloo, Canada; Winnipeg, Canada; Toronto, Ontario, Canada; Grand Blanc, Michigan, United States, and 3 more.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
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.
Other Sites (4)
Clinical Site
Grand Blanc, Michigan, United States
Clinical Site
Brooklyn, New York, United States
Clinical Site
Rochester, New York, United States
Clinical Site
Seattle, Washington, United States
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See if this trial could fit youThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.