A Study of Zasocitinib in Adults With Psoriatic Arthritis Who Have Not Taken Biologic Medicines (NCT06671483) | Clinical Trial Compass
RecruitingPhase 3
A Study of Zasocitinib in Adults With Psoriatic Arthritis Who Have Not Taken Biologic Medicines
United States, Belgium, Bulgaria1,088 participantsStarted 2025-03-03
Plain-language summary
Psoriatic arthritis (PsA) is a chronic inflammatory disease that affects the joints and skin in people who have psoriasis (PsO).
The main aim of the study is to know how well zasocitinib (TAK-279) works in participants with active PsA who have not previously been treated with biologic disease-modifying antirheumatic drugs.
The participants will be treated with either zasocitinib, active comparator, or placebo. Participants will be in the study for up to 60 weeks.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. The participant is aged 18 years or older at the time of signing the informed consent form (ICF). In South Korea, the age requirement for adult participants is \>=19 years of age.
. The participant has a diagnosis of PsA.
. The participant must have signs and symptoms of PsA for at least 3 months prior to screening.
. The participant meets the Classification Criteria for Psoriatic Arthritis (CASPAR criteria).
. The participant has active arthritis as shown by a minimum of \>=3 tender joints in TJC68 and \>=3 swollen joints in SJC66 at the screening and baseline (Day 1) visits.
. The participant has at least 1 active lesion of plaque PsO \>=2 cm in diameter, or any nail or nail bed changes characteristic of PsO.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Percentage of Participants Achieving American College of Rheumatology 20 (ACR20) Response at Week 16 for Zasocitinib Dose A and B Compared to Placebo
. The participant has had at least one of the following:
. Inadequate response to a nonsteroidal anti-inflammatory drug (NSAID) (not applicable in the European Union \[EU\]/ European Economic Area \[EEA\]), OR
Exclusion criteria
. The participant has other disease(s) that might confound the evaluations of benefit of zasocitinib therapy, including but not limited to rheumatoid arthritis, axial spondyloarthritis, systemic lupus erythematosus, Lyme disease, gout, or fibromyalgia.
. The participant has a concomitant comorbid skin condition that, in the opinion of the investigator, would interfere with the study assessments, such as evidence of non-plaque PsO (erythrodermic, pustular, predominately guttate PsO, inverse, or drug-induced PsO).