Phase 3 Psoriatic Arthritis Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- People who are 18 years of age or older at the time of signing the consent form (19 or older if in South Korea)
- People who have been diagnosed with psoriatic arthritis (PsA)
- People who have had signs and symptoms of psoriatic arthritis for at least 3 months before the screening visit
- People whose psoriatic arthritis meets a specific set of medical classification standards known as the CASPAR criteria
- People who have active joint disease, shown by at least 3 tender joints and at least 3 swollen joints, confirmed at both the screening and first study visit
- People who have at least one active skin patch of plaque psoriasis that is 2 cm or wider, or who have nail or nail bed changes typical of psoriasis
- People who have previously tried an anti-inflammatory pain medication (such as an NSAID) without enough benefit, OR who have previously tried a standard disease-modifying arthritis medication (csDMARD) without enough benefit (note: the NSAID requirement does not apply in EU/EEA countries)
Who may not be able to join:
- People who have another condition that could make it harder to assess how well the study treatment is working — for example, rheumatoid arthritis, lupus, Lyme disease, gout, fibromyalgia, or a related joint condition called axial spondyloarthritis
- People who have a skin condition alongside their psoriasis that, in the study doctor's opinion, could interfere with skin assessments — for example, certain other forms of psoriasis such as pustular, erythrodermic, guttate, inverse, or drug-induced psoriasis
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Study Director, Takeda
Phone: +1-877-825-3327
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Percentage of Participants Achieving American College of Rheumatology 20 (ACR20) Response at Week 16 for Zasocitinib Dose A and B Compared to Placebo
Can't join this trial?
Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.