Plain-English translation of NCT05307809 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Psoriasis research guide →This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
Researchers want to understand why some people with psoriasis develop joint problems while others don't. This study will compare immune system proteins called cytokines in the blood and skin of people with psoriasis alone, people with psoriatic arthritis, and healthy volunteers. By looking at these immune markers in different places (blood, stimulated immune cells, and skin), the researchers hope to discover what causes the joint involvement that affects some patients.
Psoriasis and psoriatic arthritis significantly affect patients' quality of life, but we still don't fully understand why some people develop joint problems while others only have skin symptoms. This research aims to fill that gap by studying immune system differences between these two groups.
You likely qualify if…
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If you qualify, you will have blood drawn and may have a small skin biopsy taken (a tiny sample of skin tissue). Researchers will also stimulate your immune cells in the laboratory to see how they respond. This is a research study focused on understanding your condition rather than testing a new treatment, so your visits will likely be brief and involve sample collection only.
AI-generated summary from trial data · Jun 14, 2026 · Not medical advice
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