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Psoriatic arthritis (PsA) is one of the most common comorbidities in patients with psoriasis (PsO). Current research suggests that the progression from PsO to PsA can be divided into five stages of the disease: PsO, preclinical PsA, subclinical PsA, prodromal PsA, and clinical PsA. Subclinical PsA refers to psoriasis participants who do not exhibit any clinical symptoms of arthritis but show evidence of synovio-enthesitis on ultrasound (US). However, there is currently no definitive biomarker that can accurately predict the progression from PsO to PsA. Synovitis and enthesitis are considered important features of PsA. Musculoskeletal ultrasound, using B-mode ultrasound and power Doppler (PD), can visualize synovitis and enthesitis, allowing for the early detection of subclinical PsA, as confirmed by multiple studies. Biologics are currently widely used in the treatment of PsA, with current treatment interventions primarily focusing on patients already diagnosed with PsA. In this study, we conducted a rigorous screening process to identify potential subclinical PsA patients among those with moderate to severe psoriasis. We treated these subclinical PsA patients with biologics and used musculoskeletal ultrasound as a method of efficacy assessment to observe the improvement of synovitis and enthesitis in subclinical PsA patients after 12 weeks of treatment.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Subclinical psoriatic arthritis patients |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Biologics | Drug | The ultrasonic changes of synovitis and enthesitis were observed after 12 weeks of treatment with biologic agents |
|
| Measure | Description | Time Frame |
|---|---|---|
| Improvement of synovitis and enthesitis after 12 weeks of treatment with biological agents. | The assessment using ultrasound was performed at two time points: baseline (0 weeks) and 12 weeks after medication initiation. The joint examination sites were based on the PsAson22. The examination sites for enthesitis were based on the Leeds Enthesitis Index (LEI). According to the European League Against Rheumatism (EULAR)- the Outcome Measures in Rheumatology (OMERACT) definition, the 22 joints with synovitis were scored using ultrasound composite semi-quantitative scale. Additionally, the 6 sites of entheses were evaluated according to the OMERACT enthesitis composite semi-quantitative scale. When assessing joint synovitis and enthesitis using grey scale (GS) and power Doppler (PD), we take the higher score as the final score for that site (range 0 to 3). The total score is the sum of the scores for each site, ranging from 0 to 84. Assess the improvement of Sub-PsA patients by evaluating changes before and after treatment through the scoring of synovitis and enthesitis. | From enrollment to the end of treatment at 12 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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Moderate-to-severe plaque psoriasis coming to our hospital
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| First Affiliated Hospital of Fujian Medical University | Fuzhou | Fujian | 35000000 | China |
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| ID | Term |
|---|---|
| D013585 | Synovitis |
| ID | Term |
|---|---|
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
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| ID | Term |
|---|---|
| D001688 | Biological Products |
| ID | Term |
|---|---|
| D045424 | Complex Mixtures |
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Subclinical psoriatic arthritis detected by musculoskeletal ultrasound in patients with moderate to severe plaque psoriasis.